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-rw-r--r--fs/f2fs/Kconfig19
-rw-r--r--fs/f2fs/Makefile1
-rw-r--r--fs/f2fs/checkpoint.c57
-rw-r--r--fs/f2fs/compress.c97
-rw-r--r--fs/f2fs/data.c202
-rw-r--r--fs/f2fs/debug.c39
-rw-r--r--fs/f2fs/dir.c18
-rw-r--r--fs/f2fs/extent_cache.c46
-rw-r--r--fs/f2fs/f2fs.h177
-rw-r--r--fs/f2fs/file.c70
-rw-r--r--fs/f2fs/gc.c14
-rw-r--r--fs/f2fs/iostat.c287
-rw-r--r--fs/f2fs/iostat.h84
-rw-r--r--fs/f2fs/node.c165
-rw-r--r--fs/f2fs/recovery.c3
-rw-r--r--fs/f2fs/segment.c137
-rw-r--r--fs/f2fs/segment.h4
-rw-r--r--fs/f2fs/super.c242
-rw-r--r--fs/f2fs/sysfs.c156
-rw-r--r--fs/f2fs/xattr.c3
20 files changed, 1364 insertions, 457 deletions
diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index 7669de7b49ce..7eea3cfd894d 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -105,6 +105,13 @@ config F2FS_FS_LZO
help
Support LZO compress algorithm, if unsure, say Y.
+config F2FS_FS_LZORLE
+ bool "LZO-RLE compression support"
+ depends on F2FS_FS_LZO
+ default y
+ help
+ Support LZO-RLE compress algorithm, if unsure, say Y.
+
config F2FS_FS_LZ4
bool "LZ4 compression support"
depends on F2FS_FS_COMPRESSION
@@ -114,7 +121,6 @@ config F2FS_FS_LZ4
config F2FS_FS_LZ4HC
bool "LZ4HC compression support"
- depends on F2FS_FS_COMPRESSION
depends on F2FS_FS_LZ4
default y
help
@@ -128,10 +134,11 @@ config F2FS_FS_ZSTD
help
Support ZSTD compress algorithm, if unsure, say Y.
-config F2FS_FS_LZORLE
- bool "LZO-RLE compression support"
- depends on F2FS_FS_COMPRESSION
- depends on F2FS_FS_LZO
+config F2FS_IOSTAT
+ bool "F2FS IO statistics information"
+ depends on F2FS_FS
default y
help
- Support LZO-RLE compress algorithm, if unsure, say Y.
+ Support getting IO statistics through sysfs and printing out periodic
+ IO statistics tracepoint events. You have to turn on "iostat_enable"
+ sysfs node to enable this feature.
diff --git a/fs/f2fs/Makefile b/fs/f2fs/Makefile
index e5295746208b..8a7322d229e4 100644
--- a/fs/f2fs/Makefile
+++ b/fs/f2fs/Makefile
@@ -9,3 +9,4 @@ f2fs-$(CONFIG_F2FS_FS_XATTR) += xattr.o
f2fs-$(CONFIG_F2FS_FS_POSIX_ACL) += acl.o
f2fs-$(CONFIG_FS_VERITY) += verity.o
f2fs-$(CONFIG_F2FS_FS_COMPRESSION) += compress.o
+f2fs-$(CONFIG_F2FS_IOSTAT) += iostat.o
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6c208108d69c..83e9bc0f91ff 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -18,6 +18,7 @@
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
@@ -465,16 +466,29 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino,
unsigned int devidx, int type)
{
struct inode_management *im = &sbi->im[type];
- struct ino_entry *e, *tmp;
+ struct ino_entry *e = NULL, *new = NULL;
- tmp = f2fs_kmem_cache_alloc(ino_entry_slab, GFP_NOFS);
+ if (type == FLUSH_INO) {
+ rcu_read_lock();
+ e = radix_tree_lookup(&im->ino_root, ino);
+ rcu_read_unlock();
+ }
+
+retry:
+ if (!e)
+ new = f2fs_kmem_cache_alloc(ino_entry_slab,
+ GFP_NOFS, true, NULL);
radix_tree_preload(GFP_NOFS | __GFP_NOFAIL);
spin_lock(&im->ino_lock);
e = radix_tree_lookup(&im->ino_root, ino);
if (!e) {
- e = tmp;
+ if (!new) {
+ spin_unlock(&im->ino_lock);
+ goto retry;
+ }
+ e = new;
if (unlikely(radix_tree_insert(&im->ino_root, ino, e)))
f2fs_bug_on(sbi, 1);
@@ -492,8 +506,8 @@ static void __add_ino_entry(struct f2fs_sb_info *sbi, nid_t ino,
spin_unlock(&im->ino_lock);
radix_tree_preload_end();
- if (e != tmp)
- kmem_cache_free(ino_entry_slab, tmp);
+ if (new && e != new)
+ kmem_cache_free(ino_entry_slab, new);
}
static void __remove_ino_entry(struct f2fs_sb_info *sbi, nid_t ino, int type)
@@ -1289,12 +1303,20 @@ static void update_ckpt_flags(struct f2fs_sb_info *sbi, struct cp_control *cpc)
struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
unsigned long flags;
- spin_lock_irqsave(&sbi->cp_lock, flags);
+ if (cpc->reason & CP_UMOUNT) {
+ if (le32_to_cpu(ckpt->cp_pack_total_block_count) >
+ sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks) {
+ clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
+ f2fs_notice(sbi, "Disable nat_bits due to no space");
+ } else if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG) &&
+ f2fs_nat_bitmap_enabled(sbi)) {
+ f2fs_enable_nat_bits(sbi);
+ set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
+ f2fs_notice(sbi, "Rebuild and enable nat_bits");
+ }
+ }
- if ((cpc->reason & CP_UMOUNT) &&
- le32_to_cpu(ckpt->cp_pack_total_block_count) >
- sbi->blocks_per_seg - NM_I(sbi)->nat_bits_blocks)
- disable_nat_bits(sbi, false);
+ spin_lock_irqsave(&sbi->cp_lock, flags);
if (cpc->reason & CP_TRIMMED)
__set_ckpt_flags(ckpt, CP_TRIMMED_FLAG);
@@ -1480,7 +1502,8 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
start_blk = __start_cp_next_addr(sbi);
/* write nat bits */
- if (enabled_nat_bits(sbi, cpc)) {
+ if ((cpc->reason & CP_UMOUNT) &&
+ is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG)) {
__u64 cp_ver = cur_cp_version(ckpt);
block_t blk;
@@ -1639,8 +1662,11 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* write cached NAT/SIT entries to NAT/SIT area */
err = f2fs_flush_nat_entries(sbi, cpc);
- if (err)
+ if (err) {
+ f2fs_err(sbi, "f2fs_flush_nat_entries failed err:%d, stop checkpoint", err);
+ f2fs_bug_on(sbi, !f2fs_cp_error(sbi));
goto stop;
+ }
f2fs_flush_sit_entries(sbi, cpc);
@@ -1648,10 +1674,13 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
f2fs_save_inmem_curseg(sbi);
err = do_checkpoint(sbi, cpc);
- if (err)
+ if (err) {
+ f2fs_err(sbi, "do_checkpoint failed err:%d, stop checkpoint", err);
+ f2fs_bug_on(sbi, !f2fs_cp_error(sbi));
f2fs_release_discard_addrs(sbi);
- else
+ } else {
f2fs_clear_prefree_segments(sbi, cpc);
+ }
f2fs_restore_inmem_curseg(sbi);
stop:
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
index 455561826c7d..c1bf9ad4c220 100644
--- a/fs/f2fs/compress.c
+++ b/fs/f2fs/compress.c
@@ -28,7 +28,8 @@ static void *page_array_alloc(struct inode *inode, int nr)
unsigned int size = sizeof(struct page *) * nr;
if (likely(size <= sbi->page_array_slab_size))
- return kmem_cache_zalloc(sbi->page_array_slab, GFP_NOFS);
+ return f2fs_kmem_cache_alloc(sbi->page_array_slab,
+ GFP_F2FS_ZERO, false, F2FS_I_SB(inode));
return f2fs_kzalloc(sbi, size, GFP_NOFS);
}
@@ -898,6 +899,54 @@ static bool cluster_has_invalid_data(struct compress_ctx *cc)
return false;
}
+bool f2fs_sanity_check_cluster(struct dnode_of_data *dn)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
+ unsigned int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
+ bool compressed = dn->data_blkaddr == COMPRESS_ADDR;
+ int cluster_end = 0;
+ int i;
+ char *reason = "";
+
+ if (!compressed)
+ return false;
+
+ /* [..., COMPR_ADDR, ...] */
+ if (dn->ofs_in_node % cluster_size) {
+ reason = "[*|C|*|*]";
+ goto out;
+ }
+
+ for (i = 1; i < cluster_size; i++) {
+ block_t blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
+
+ /* [COMPR_ADDR, ..., COMPR_ADDR] */
+ if (blkaddr == COMPRESS_ADDR) {
+ reason = "[C|*|C|*]";
+ goto out;
+ }
+ if (compressed) {
+ if (!__is_valid_data_blkaddr(blkaddr)) {
+ if (!cluster_end)
+ cluster_end = i;
+ continue;
+ }
+ /* [COMPR_ADDR, NULL_ADDR or NEW_ADDR, valid_blkaddr] */
+ if (cluster_end) {
+ reason = "[C|N|N|V]";
+ goto out;
+ }
+ }
+ }
+ return false;
+out:
+ f2fs_warn(sbi, "access invalid cluster, ino:%lu, nid:%u, ofs_in_node:%u, reason:%s",
+ dn->inode->i_ino, dn->nid, dn->ofs_in_node, reason);
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ return true;
+}
+
static int __f2fs_cluster_blocks(struct inode *inode,
unsigned int cluster_idx, bool compr)
{
@@ -915,6 +964,11 @@ static int __f2fs_cluster_blocks(struct inode *inode,
goto fail;
}
+ if (f2fs_sanity_check_cluster(&dn)) {
+ ret = -EFSCORRUPTED;
+ goto fail;
+ }
+
if (dn.data_blkaddr == COMPRESS_ADDR) {
int i;
@@ -1228,7 +1282,7 @@ static int f2fs_write_compressed_pages(struct compress_ctx *cc,
fio.version = ni.version;
- cic = kmem_cache_zalloc(cic_entry_slab, GFP_NOFS);
+ cic = f2fs_kmem_cache_alloc(cic_entry_slab, GFP_F2FS_ZERO, false, sbi);
if (!cic)
goto out_put_dnode;
@@ -1340,12 +1394,6 @@ out_destroy_crypt:
for (--i; i >= 0; i--)
fscrypt_finalize_bounce_page(&cc->cpages[i]);
- for (i = 0; i < cc->nr_cpages; i++) {
- if (!cc->cpages[i])
- continue;
- f2fs_compress_free_page(cc->cpages[i]);
- cc->cpages[i] = NULL;
- }
out_put_cic:
kmem_cache_free(cic_entry_slab, cic);
out_put_dnode:
@@ -1356,6 +1404,12 @@ out_unlock_op:
else
f2fs_unlock_op(sbi);
out_free:
+ for (i = 0; i < cc->nr_cpages; i++) {
+ if (!cc->cpages[i])
+ continue;
+ f2fs_compress_free_page(cc->cpages[i]);
+ cc->cpages[i] = NULL;
+ }
page_array_free(cc->inode, cc->cpages, cc->nr_cpages);
cc->cpages = NULL;
return -EAGAIN;
@@ -1506,7 +1560,8 @@ struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc)
pgoff_t start_idx = start_idx_of_cluster(cc);
int i;
- dic = kmem_cache_zalloc(dic_entry_slab, GFP_NOFS);
+ dic = f2fs_kmem_cache_alloc(dic_entry_slab, GFP_F2FS_ZERO,
+ false, F2FS_I_SB(cc->inode));
if (!dic)
return ERR_PTR(-ENOMEM);
@@ -1666,6 +1721,30 @@ void f2fs_put_page_dic(struct page *page)
f2fs_put_dic(dic);
}
+/*
+ * check whether cluster blocks are contiguous, and add extent cache entry
+ * only if cluster blocks are logically and physically contiguous.
+ */
+unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn)
+{
+ bool compressed = f2fs_data_blkaddr(dn) == COMPRESS_ADDR;
+ int i = compressed ? 1 : 0;
+ block_t first_blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
+
+ for (i += 1; i < F2FS_I(dn->inode)->i_cluster_size; i++) {
+ block_t blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + i);
+
+ if (!__is_valid_data_blkaddr(blkaddr))
+ break;
+ if (first_blkaddr + i - (compressed ? 1 : 0) != blkaddr)
+ return 0;
+ }
+
+ return compressed ? i - 1 : i;
+}
+
const struct address_space_operations f2fs_compress_aops = {
.releasepage = f2fs_release_page,
.invalidatepage = f2fs_invalidate_page,
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index eb222b35edef..f4fd6c246c9a 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -25,6 +25,7 @@
#include "f2fs.h"
#include "node.h"
#include "segment.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#define NUM_PREALLOC_POST_READ_CTXS 128
@@ -116,6 +117,7 @@ struct bio_post_read_ctx {
struct f2fs_sb_info *sbi;
struct work_struct work;
unsigned int enabled_steps;
+ block_t fs_blkaddr;
};
static void f2fs_finish_read_bio(struct bio *bio)
@@ -228,7 +230,7 @@ static void f2fs_handle_step_decompress(struct bio_post_read_ctx *ctx)
struct bio_vec *bv;
struct bvec_iter_all iter_all;
bool all_compressed = true;
- block_t blkaddr = SECTOR_TO_BLOCK(ctx->bio->bi_iter.bi_sector);
+ block_t blkaddr = ctx->fs_blkaddr;
bio_for_each_segment_all(bv, ctx->bio, iter_all) {
struct page *page = bv->bv_page;
@@ -269,7 +271,10 @@ static void f2fs_post_read_work(struct work_struct *work)
static void f2fs_read_end_io(struct bio *bio)
{
struct f2fs_sb_info *sbi = F2FS_P_SB(bio_first_page_all(bio));
- struct bio_post_read_ctx *ctx = bio->bi_private;
+ struct bio_post_read_ctx *ctx;
+
+ iostat_update_and_unbind_ctx(bio, 0);
+ ctx = bio->bi_private;
if (time_to_inject(sbi, FAULT_READ_IO)) {
f2fs_show_injection_info(sbi, FAULT_READ_IO);
@@ -291,10 +296,13 @@ static void f2fs_read_end_io(struct bio *bio)
static void f2fs_write_end_io(struct bio *bio)
{
- struct f2fs_sb_info *sbi = bio->bi_private;
+ struct f2fs_sb_info *sbi;
struct bio_vec *bvec;
struct bvec_iter_all iter_all;
+ iostat_update_and_unbind_ctx(bio, 1);
+ sbi = bio->bi_private;
+
if (time_to_inject(sbi, FAULT_WRITE_IO)) {
f2fs_show_injection_info(sbi, FAULT_WRITE_IO);
bio->bi_status = BLK_STS_IOERR;
@@ -398,6 +406,8 @@ static struct bio *__bio_alloc(struct f2fs_io_info *fio, int npages)
bio->bi_write_hint = f2fs_io_type_to_rw_hint(sbi,
fio->type, fio->temp);
}
+ iostat_alloc_and_bind_ctx(sbi, bio, NULL);
+
if (fio->io_wbc)
wbc_init_bio(fio->io_wbc, bio);
@@ -479,6 +489,8 @@ submit_io:
trace_f2fs_submit_read_bio(sbi->sb, type, bio);
else
trace_f2fs_submit_write_bio(sbi->sb, type, bio);
+
+ iostat_update_submit_ctx(bio, type);
submit_bio(bio);
}
@@ -723,7 +735,7 @@ static void add_bio_entry(struct f2fs_sb_info *sbi, struct bio *bio,
struct f2fs_bio_info *io = sbi->write_io[DATA] + temp;
struct bio_entry *be;
- be = f2fs_kmem_cache_alloc(bio_entry_slab, GFP_NOFS);
+ be = f2fs_kmem_cache_alloc(bio_entry_slab, GFP_NOFS, true, NULL);
be->bio = bio;
bio_get(bio);
@@ -970,7 +982,7 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
{
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
struct bio *bio;
- struct bio_post_read_ctx *ctx;
+ struct bio_post_read_ctx *ctx = NULL;
unsigned int post_read_steps = 0;
bio = bio_alloc_bioset(for_write ? GFP_NOIO : GFP_KERNEL,
@@ -1003,8 +1015,10 @@ static struct bio *f2fs_grab_read_bio(struct inode *inode, block_t blkaddr,
ctx->bio = bio;
ctx->sbi = sbi;
ctx->enabled_steps = post_read_steps;
+ ctx->fs_blkaddr = blkaddr;
bio->bi_private = ctx;
}
+ iostat_alloc_and_bind_ctx(sbi, bio, ctx);
return bio;
}
@@ -1133,7 +1147,7 @@ int f2fs_reserve_block(struct dnode_of_data *dn, pgoff_t index)
int f2fs_get_block(struct dnode_of_data *dn, pgoff_t index)
{
- struct extent_info ei = {0, 0, 0};
+ struct extent_info ei = {0, };
struct inode *inode = dn->inode;
if (f2fs_lookup_extent_cache(inode, index, &ei)) {
@@ -1150,7 +1164,7 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
struct address_space *mapping = inode->i_mapping;
struct dnode_of_data dn;
struct page *page;
- struct extent_info ei = {0,0,0};
+ struct extent_info ei = {0, };
int err;
page = f2fs_grab_cache_page(mapping, index, for_write);
@@ -1448,7 +1462,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
int err = 0, ofs = 1;
unsigned int ofs_in_node, last_ofs_in_node;
blkcnt_t prealloc;
- struct extent_info ei = {0,0,0};
+ struct extent_info ei = {0, };
block_t blkaddr;
unsigned int start_pgofs;
@@ -1490,7 +1504,21 @@ next_dnode:
if (err) {
if (flag == F2FS_GET_BLOCK_BMAP)
map->m_pblk = 0;
+
if (err == -ENOENT) {
+ /*
+ * There is one exceptional case that read_node_page()
+ * may return -ENOENT due to filesystem has been
+ * shutdown or cp_error, so force to convert error
+ * number to EIO for such case.
+ */
+ if (map->m_may_create &&
+ (is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN) ||
+ f2fs_cp_error(sbi))) {
+ err = -EIO;
+ goto unlock_out;
+ }
+
err = 0;
if (map->m_next_pgofs)
*map->m_next_pgofs =
@@ -1550,6 +1578,13 @@ next_block:
map->m_flags |= F2FS_MAP_NEW;
blkaddr = dn.data_blkaddr;
} else {
+ if (f2fs_compressed_file(inode) &&
+ f2fs_sanity_check_cluster(&dn) &&
+ (flag != F2FS_GET_BLOCK_FIEMAP ||
+ IS_ENABLED(CONFIG_F2FS_CHECK_FS))) {
+ err = -EFSCORRUPTED;
+ goto sync_out;
+ }
if (flag == F2FS_GET_BLOCK_BMAP) {
map->m_pblk = 0;
goto sync_out;
@@ -1843,8 +1878,9 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 logical = 0, phys = 0, size = 0;
u32 flags = 0;
int ret = 0;
- bool compr_cluster = false;
+ bool compr_cluster = false, compr_appended;
unsigned int cluster_size = F2FS_I(inode)->i_cluster_size;
+ unsigned int count_in_cluster = 0;
loff_t maxbytes;
if (fieinfo->fi_flags & FIEMAP_FLAG_CACHE) {
@@ -1892,15 +1928,17 @@ next:
map.m_next_pgofs = &next_pgofs;
map.m_seg_type = NO_CHECK_TYPE;
- if (compr_cluster)
- map.m_len = cluster_size - 1;
+ if (compr_cluster) {
+ map.m_lblk += 1;
+ map.m_len = cluster_size - count_in_cluster;
+ }
ret = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_FIEMAP);
if (ret)
goto out;
/* HOLE */
- if (!(map.m_flags & F2FS_MAP_FLAGS)) {
+ if (!compr_cluster && !(map.m_flags & F2FS_MAP_FLAGS)) {
start_blk = next_pgofs;
if (blks_to_bytes(inode, start_blk) < blks_to_bytes(inode,
@@ -1910,6 +1948,14 @@ next:
flags |= FIEMAP_EXTENT_LAST;
}
+ compr_appended = false;
+ /* In a case of compressed cluster, append this to the last extent */
+ if (compr_cluster && ((map.m_flags & F2FS_MAP_UNWRITTEN) ||
+ !(map.m_flags & F2FS_MAP_FLAGS))) {
+ compr_appended = true;
+ goto skip_fill;
+ }
+
if (size) {
flags |= FIEMAP_EXTENT_MERGED;
if (IS_ENCRYPTED(inode))
@@ -1926,38 +1972,36 @@ next:
if (start_blk > last_blk)
goto out;
- if (compr_cluster) {
- compr_cluster = false;
-
-
- logical = blks_to_bytes(inode, start_blk - 1);
- phys = blks_to_bytes(inode, map.m_pblk);
- size = blks_to_bytes(inode, cluster_size);
-
- flags |= FIEMAP_EXTENT_ENCODED;
-
- start_blk += cluster_size - 1;
-
- if (start_blk > last_blk)
- goto out;
-
- goto prep_next;
- }
-
+skip_fill:
if (map.m_pblk == COMPRESS_ADDR) {
compr_cluster = true;
- start_blk++;
- goto prep_next;
- }
-
- logical = blks_to_bytes(inode, start_blk);
- phys = blks_to_bytes(inode, map.m_pblk);
- size = blks_to_bytes(inode, map.m_len);
- flags = 0;
- if (map.m_flags & F2FS_MAP_UNWRITTEN)
- flags = FIEMAP_EXTENT_UNWRITTEN;
+ count_in_cluster = 1;
+ } else if (compr_appended) {
+ unsigned int appended_blks = cluster_size -
+ count_in_cluster + 1;
+ size += blks_to_bytes(inode, appended_blks);
+ start_blk += appended_blks;
+ compr_cluster = false;
+ } else {
+ logical = blks_to_bytes(inode, start_blk);
+ phys = __is_valid_data_blkaddr(map.m_pblk) ?
+ blks_to_bytes(inode, map.m_pblk) : 0;
+ size = blks_to_bytes(inode, map.m_len);
+ flags = 0;
+
+ if (compr_cluster) {
+ flags = FIEMAP_EXTENT_ENCODED;
+ count_in_cluster += map.m_len;
+ if (count_in_cluster == cluster_size) {
+ compr_cluster = false;
+ size += blks_to_bytes(inode, 1);
+ }
+ } else if (map.m_flags & F2FS_MAP_UNWRITTEN) {
+ flags = FIEMAP_EXTENT_UNWRITTEN;
+ }
- start_blk += bytes_to_blks(inode, size);
+ start_blk += bytes_to_blks(inode, size);
+ }
prep_next:
cond_resched();
@@ -2115,6 +2159,8 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
sector_t last_block_in_file;
const unsigned blocksize = blks_to_bytes(inode, 1);
struct decompress_io_ctx *dic = NULL;
+ struct extent_info ei = {0, };
+ bool from_dnode = true;
int i;
int ret = 0;
@@ -2137,6 +2183,8 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
continue;
}
unlock_page(page);
+ if (for_write)
+ put_page(page);
cc->rpages[i] = NULL;
cc->nr_rpages--;
}
@@ -2145,6 +2193,12 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
if (f2fs_cluster_is_empty(cc))
goto out;
+ if (f2fs_lookup_extent_cache(inode, start_idx, &ei))
+ from_dnode = false;
+
+ if (!from_dnode)
+ goto skip_reading_dnode;
+
set_new_dnode(&dn, inode, NULL, NULL, 0);
ret = f2fs_get_dnode_of_data(&dn, start_idx, LOOKUP_NODE);
if (ret)
@@ -2152,11 +2206,13 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
f2fs_bug_on(sbi, dn.data_blkaddr != COMPRESS_ADDR);
+skip_reading_dnode:
for (i = 1; i < cc->cluster_size; i++) {
block_t blkaddr;
- blkaddr = data_blkaddr(dn.inode, dn.node_page,
- dn.ofs_in_node + i);
+ blkaddr = from_dnode ? data_blkaddr(dn.inode, dn.node_page,
+ dn.ofs_in_node + i) :
+ ei.blk + i - 1;
if (!__is_valid_data_blkaddr(blkaddr))
break;
@@ -2166,6 +2222,9 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
goto out_put_dnode;
}
cc->nr_cpages++;
+
+ if (!from_dnode && i >= ei.c_len)
+ break;
}
/* nothing to decompress */
@@ -2185,8 +2244,9 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
block_t blkaddr;
struct bio_post_read_ctx *ctx;
- blkaddr = data_blkaddr(dn.inode, dn.node_page,
- dn.ofs_in_node + i + 1);
+ blkaddr = from_dnode ? data_blkaddr(dn.inode, dn.node_page,
+ dn.ofs_in_node + i + 1) :
+ ei.blk + i;
f2fs_wait_on_block_writeback(inode, blkaddr);
@@ -2220,7 +2280,7 @@ submit_and_realloc:
if (bio_add_page(bio, page, blocksize, 0) < blocksize)
goto submit_and_realloc;
- ctx = bio->bi_private;
+ ctx = get_post_read_ctx(bio);
ctx->enabled_steps |= STEP_DECOMPRESS;
refcount_inc(&dic->refcnt);
@@ -2231,13 +2291,15 @@ submit_and_realloc:
*last_block_in_bio = blkaddr;
}
- f2fs_put_dnode(&dn);
+ if (from_dnode)
+ f2fs_put_dnode(&dn);
*bio_ret = bio;
return 0;
out_put_dnode:
- f2fs_put_dnode(&dn);
+ if (from_dnode)
+ f2fs_put_dnode(&dn);
out:
for (i = 0; i < cc->cluster_size; i++) {
if (cc->rpages[i]) {
@@ -2272,6 +2334,7 @@ static int f2fs_mpage_readpages(struct inode *inode,
.nr_rpages = 0,
.nr_cpages = 0,
};
+ pgoff_t nc_cluster_idx = NULL_CLUSTER;
#endif
unsigned nr_pages = rac ? readahead_count(rac) : 1;
unsigned max_nr_pages = nr_pages;
@@ -2304,12 +2367,23 @@ static int f2fs_mpage_readpages(struct inode *inode,
if (ret)
goto set_error_page;
}
- ret = f2fs_is_compressed_cluster(inode, page->index);
- if (ret < 0)
- goto set_error_page;
- else if (!ret)
- goto read_single_page;
+ if (cc.cluster_idx == NULL_CLUSTER) {
+ if (nc_cluster_idx ==
+ page->index >> cc.log_cluster_size) {
+ goto read_single_page;
+ }
+ ret = f2fs_is_compressed_cluster(inode, page->index);
+ if (ret < 0)
+ goto set_error_page;
+ else if (!ret) {
+ nc_cluster_idx =
+ page->index >> cc.log_cluster_size;
+ goto read_single_page;
+ }
+
+ nc_cluster_idx = NULL_CLUSTER;
+ }
ret = f2fs_init_compress_ctx(&cc);
if (ret)
goto set_error_page;
@@ -2498,6 +2572,8 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
return true;
if (f2fs_is_atomic_file(inode))
return true;
+ if (is_sbi_flag_set(sbi, SBI_NEED_FSCK))
+ return true;
/* swap file is migrating in aligned write mode */
if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))
@@ -2530,7 +2606,7 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
struct page *page = fio->page;
struct inode *inode = page->mapping->host;
struct dnode_of_data dn;
- struct extent_info ei = {0,0,0};
+ struct extent_info ei = {0, };
struct node_info ni;
bool ipu_force = false;
int err = 0;
@@ -3176,9 +3252,8 @@ static int f2fs_write_data_pages(struct address_space *mapping,
FS_CP_DATA_IO : FS_DATA_IO);
}
-static void f2fs_write_failed(struct address_space *mapping, loff_t to)
+static void f2fs_write_failed(struct inode *inode, loff_t to)
{
- struct inode *inode = mapping->host;
loff_t i_size = i_size_read(inode);
if (IS_NOQUOTA(inode))
@@ -3187,12 +3262,12 @@ static void f2fs_write_failed(struct address_space *mapping, loff_t to)
/* In the fs-verity case, f2fs_end_enable_verity() does the truncate */
if (to > i_size && !f2fs_verity_in_progress(inode)) {
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
- filemap_invalidate_lock(mapping);
+ filemap_invalidate_lock(inode->i_mapping);
truncate_pagecache(inode, i_size);
f2fs_truncate_blocks(inode, i_size, true);
- filemap_invalidate_unlock(mapping);
+ filemap_invalidate_unlock(inode->i_mapping);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
}
}
@@ -3206,7 +3281,7 @@ static int prepare_write_begin(struct f2fs_sb_info *sbi,
struct dnode_of_data dn;
struct page *ipage;
bool locked = false;
- struct extent_info ei = {0,0,0};
+ struct extent_info ei = {0, };
int err = 0;
int flag;
@@ -3328,6 +3403,9 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
*fsdata = NULL;
+ if (len == PAGE_SIZE)
+ goto repeat;
+
ret = f2fs_prepare_compress_overwrite(inode, pagep,
index, fsdata);
if (ret < 0) {
@@ -3410,7 +3488,7 @@ repeat:
fail:
f2fs_put_page(page, 1);
- f2fs_write_failed(mapping, pos + len);
+ f2fs_write_failed(inode, pos + len);
if (drop_atomic)
f2fs_drop_inmem_pages_all(sbi, false);
return err;
@@ -3552,7 +3630,7 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
if (f2fs_force_buffered_io(inode, iocb, iter))
return 0;
- do_opu = allow_outplace_dio(inode, iocb, iter);
+ do_opu = rw == WRITE && f2fs_lfs_mode(sbi);
trace_f2fs_direct_IO_enter(inode, offset, count, rw);
@@ -3600,7 +3678,7 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
f2fs_update_iostat(F2FS_I_SB(inode), APP_DIRECT_IO,
count - iov_iter_count(iter));
} else if (err < 0) {
- f2fs_write_failed(mapping, offset + count);
+ f2fs_write_failed(inode, offset + count);
}
} else {
if (err > 0)
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c
index 833325038ef3..8c50518475a9 100644
--- a/fs/f2fs/debug.c
+++ b/fs/f2fs/debug.c
@@ -323,11 +323,27 @@ get_cache:
#endif
}
+static char *s_flag[] = {
+ [SBI_IS_DIRTY] = " fs_dirty",
+ [SBI_IS_CLOSE] = " closing",
+ [SBI_NEED_FSCK] = " need_fsck",
+ [SBI_POR_DOING] = " recovering",
+ [SBI_NEED_SB_WRITE] = " sb_dirty",
+ [SBI_NEED_CP] = " need_cp",
+ [SBI_IS_SHUTDOWN] = " shutdown",
+ [SBI_IS_RECOVERED] = " recovered",
+ [SBI_CP_DISABLED] = " cp_disabled",
+ [SBI_CP_DISABLED_QUICK] = " cp_disabled_quick",
+ [SBI_QUOTA_NEED_FLUSH] = " quota_need_flush",
+ [SBI_QUOTA_SKIP_FLUSH] = " quota_skip_flush",
+ [SBI_QUOTA_NEED_REPAIR] = " quota_need_repair",
+ [SBI_IS_RESIZEFS] = " resizefs",
+};
+
static int stat_show(struct seq_file *s, void *v)
{
struct f2fs_stat_info *si;
- int i = 0;
- int j;
+ int i = 0, j = 0;
mutex_lock(&f2fs_stat_mutex);
list_for_each_entry(si, &f2fs_stat_list, stat_list) {
@@ -337,7 +353,13 @@ static int stat_show(struct seq_file *s, void *v)
si->sbi->sb->s_bdev, i++,
f2fs_readonly(si->sbi->sb) ? "RO": "RW",
is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
- "Disabled": (f2fs_cp_error(si->sbi) ? "Error": "Good"));
+ "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good"));
+ if (si->sbi->s_flag) {
+ seq_puts(s, "[SBI:");
+ for_each_set_bit(j, &si->sbi->s_flag, 32)
+ seq_puts(s, s_flag[j]);
+ seq_puts(s, "]\n");
+ }
seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
si->sit_area_segs, si->nat_area_segs);
seq_printf(s, "[SSA: %d] [MAIN: %d",
@@ -450,6 +472,15 @@ static int stat_show(struct seq_file *s, void *v)
si->data_segs, si->bg_data_segs);
seq_printf(s, " - node segments : %d (%d)\n",
si->node_segs, si->bg_node_segs);
+ seq_printf(s, " - Reclaimed segs : Normal (%d), Idle CB (%d), "
+ "Idle Greedy (%d), Idle AT (%d), "
+ "Urgent High (%d), Urgent Low (%d)\n",
+ si->sbi->gc_reclaimed_segs[GC_NORMAL],
+ si->sbi->gc_reclaimed_segs[GC_IDLE_CB],
+ si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY],
+ si->sbi->gc_reclaimed_segs[GC_IDLE_AT],
+ si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH],
+ si->sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
si->bg_data_blks + si->bg_node_blks);
seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
@@ -611,7 +642,7 @@ void __init f2fs_create_root_stats(void)
#ifdef CONFIG_DEBUG_FS
f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
- debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, NULL,
+ debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
&stat_fops);
#endif
}
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 456651682daf..1820e9c106f7 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -83,8 +83,8 @@ int f2fs_init_casefolded_name(const struct inode *dir,
struct super_block *sb = dir->i_sb;
if (IS_CASEFOLDED(dir)) {
- fname->cf_name.name = kmem_cache_alloc(f2fs_cf_name_slab,
- GFP_NOFS);
+ fname->cf_name.name = f2fs_kmem_cache_alloc(f2fs_cf_name_slab,
+ GFP_NOFS, false, F2FS_SB(sb));
if (!fname->cf_name.name)
return -ENOMEM;
fname->cf_name.len = utf8_casefold(sb->s_encoding,
@@ -1000,6 +1000,7 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
struct f2fs_sb_info *sbi = F2FS_I_SB(d->inode);
struct blk_plug plug;
bool readdir_ra = sbi->readdir_ra == 1;
+ bool found_valid_dirent = false;
int err = 0;
bit_pos = ((unsigned long)ctx->pos % d->max);
@@ -1014,13 +1015,15 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
de = &d->dentry[bit_pos];
if (de->name_len == 0) {
+ if (found_valid_dirent || !bit_pos) {
+ printk_ratelimited(
+ "%sF2FS-fs (%s): invalid namelen(0), ino:%u, run fsck to fix.",
+ KERN_WARNING, sbi->sb->s_id,
+ le32_to_cpu(de->ino));
+ set_sbi_flag(sbi, SBI_NEED_FSCK);
+ }
bit_pos++;
ctx->pos = start_pos + bit_pos;
- printk_ratelimited(
- "%sF2FS-fs (%s): invalid namelen(0), ino:%u, run fsck to fix.",
- KERN_WARNING, sbi->sb->s_id,
- le32_to_cpu(de->ino));
- set_sbi_flag(sbi, SBI_NEED_FSCK);
continue;
}
@@ -1063,6 +1066,7 @@ int f2fs_fill_dentries(struct dir_context *ctx, struct f2fs_dentry_ptr *d,
f2fs_ra_node_page(sbi, le32_to_cpu(de->ino));
ctx->pos = start_pos + bit_pos;
+ found_valid_dirent = true;
}
out:
if (readdir_ra)
diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
index 3ebf976a682d..866e72b29bd5 100644
--- a/fs/f2fs/extent_cache.c
+++ b/fs/f2fs/extent_cache.c
@@ -239,7 +239,7 @@ static struct extent_node *__attach_extent_node(struct f2fs_sb_info *sbi,
{
struct extent_node *en;
- en = kmem_cache_alloc(extent_node_slab, GFP_ATOMIC);
+ en = f2fs_kmem_cache_alloc(extent_node_slab, GFP_ATOMIC, false, sbi);
if (!en)
return NULL;
@@ -292,7 +292,8 @@ static struct extent_tree *__grab_extent_tree(struct inode *inode)
mutex_lock(&sbi->extent_tree_lock);
et = radix_tree_lookup(&sbi->extent_tree_root, ino);
if (!et) {
- et = f2fs_kmem_cache_alloc(extent_tree_slab, GFP_NOFS);
+ et = f2fs_kmem_cache_alloc(extent_tree_slab,
+ GFP_NOFS, true, NULL);
f2fs_radix_tree_insert(&sbi->extent_tree_root, ino, et);
memset(et, 0, sizeof(struct extent_tree));
et->ino = ino;
@@ -661,6 +662,47 @@ static void f2fs_update_extent_tree_range(struct inode *inode,
f2fs_mark_inode_dirty_sync(inode, true);
}
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+void f2fs_update_extent_tree_range_compressed(struct inode *inode,
+ pgoff_t fofs, block_t blkaddr, unsigned int llen,
+ unsigned int c_len)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct extent_tree *et = F2FS_I(inode)->extent_tree;
+ struct extent_node *en = NULL;
+ struct extent_node *prev_en = NULL, *next_en = NULL;
+ struct extent_info ei;
+ struct rb_node **insert_p = NULL, *insert_parent = NULL;
+ bool leftmost = false;
+
+ trace_f2fs_update_extent_tree_range(inode, fofs, blkaddr, llen);
+
+ /* it is safe here to check FI_NO_EXTENT w/o et->lock in ro image */
+ if (is_inode_flag_set(inode, FI_NO_EXTENT))
+ return;
+
+ write_lock(&et->lock);
+
+ en = (struct extent_node *)f2fs_lookup_rb_tree_ret(&et->root,
+ (struct rb_entry *)et->cached_en, fofs,
+ (struct rb_entry **)&prev_en,
+ (struct rb_entry **)&next_en,
+ &insert_p, &insert_parent, false,
+ &leftmost);
+ if (en)
+ goto unlock_out;
+
+ set_extent_info(&ei, fofs, blkaddr, llen);
+ ei.c_len = c_len;
+
+ if (!__try_merge_extent_node(sbi, et, &ei, prev_en, next_en))
+ __insert_extent_tree(sbi, et, &ei,
+ insert_p, insert_parent, leftmost);
+unlock_out:
+ write_unlock(&et->lock);
+}
+#endif
+
unsigned int f2fs_shrink_extent_tree(struct f2fs_sb_info *sbi, int nr_shrink)
{
struct extent_tree *et, *next;
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 906b2c4b50e7..b339ae89c1ad 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -43,6 +43,7 @@ enum {
FAULT_KVMALLOC,
FAULT_PAGE_ALLOC,
FAULT_PAGE_GET,
+ FAULT_ALLOC_BIO, /* it's obsolete due to bio_alloc() will never fail */
FAULT_ALLOC_NID,
FAULT_ORPHAN,
FAULT_BLOCK,
@@ -53,6 +54,7 @@ enum {
FAULT_CHECKPOINT,
FAULT_DISCARD,
FAULT_WRITE_IO,
+ FAULT_SLAB_ALLOC,
FAULT_MAX,
};
@@ -139,6 +141,11 @@ struct f2fs_mount_info {
int fsync_mode; /* fsync policy */
int fs_mode; /* fs mode: LFS or ADAPTIVE */
int bggc_mode; /* bggc mode: off, on or sync */
+ int discard_unit; /*
+ * discard command's offset/size should
+ * be aligned to this unit: block,
+ * segment or section
+ */
struct fscrypt_dummy_policy dummy_enc_policy; /* test dummy encryption */
block_t unusable_cap_perc; /* percentage for cap */
block_t unusable_cap; /* Amount of space allowed to be
@@ -542,7 +549,7 @@ enum {
*/
};
-#define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO count */
+#define DEFAULT_RETRY_IO_COUNT 8 /* maximum retry read IO or flush count */
/* congestion wait timeout value, default: 20ms */
#define DEFAULT_IO_TIMEOUT (msecs_to_jiffies(20))
@@ -575,6 +582,9 @@ struct extent_info {
unsigned int fofs; /* start offset in a file */
unsigned int len; /* length of the extent */
u32 blk; /* start block address of the extent */
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ unsigned int c_len; /* physical extent length of compressed blocks */
+#endif
};
struct extent_node {
@@ -793,6 +803,9 @@ static inline void set_extent_info(struct extent_info *ei, unsigned int fofs,
ei->fofs = fofs;
ei->blk = blk;
ei->len = len;
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ ei->c_len = 0;
+#endif
}
static inline bool __is_discard_mergeable(struct discard_info *back,
@@ -817,6 +830,12 @@ static inline bool __is_discard_front_mergeable(struct discard_info *cur,
static inline bool __is_extent_mergeable(struct extent_info *back,
struct extent_info *front)
{
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (back->c_len && back->len != back->c_len)
+ return false;
+ if (front->c_len && front->len != front->c_len)
+ return false;
+#endif
return (back->fofs + back->len == front->fofs &&
back->blk + back->len == front->blk);
}
@@ -1252,6 +1271,7 @@ enum {
GC_IDLE_AT,
GC_URGENT_HIGH,
GC_URGENT_LOW,
+ MAX_GC_MODE,
};
enum {
@@ -1297,6 +1317,12 @@ enum {
*/
};
+enum {
+ DISCARD_UNIT_BLOCK, /* basic discard unit is block */
+ DISCARD_UNIT_SEGMENT, /* basic discard unit is segment */
+ DISCARD_UNIT_SECTION, /* basic discard unit is section */
+};
+
static inline int f2fs_test_bit(unsigned int nr, char *addr);
static inline void f2fs_set_bit(unsigned int nr, char *addr);
static inline void f2fs_clear_bit(unsigned int nr, char *addr);
@@ -1686,14 +1712,6 @@ struct f2fs_sb_info {
#endif
spinlock_t stat_lock; /* lock for stat operations */
- /* For app/fs IO statistics */
- spinlock_t iostat_lock;
- unsigned long long rw_iostat[NR_IO_TYPE];
- unsigned long long prev_rw_iostat[NR_IO_TYPE];
- bool iostat_enable;
- unsigned long iostat_next_period;
- unsigned int iostat_period_ms;
-
/* to attach REQ_META|REQ_FUA flags */
unsigned int data_io_flag;
unsigned int node_io_flag;
@@ -1732,6 +1750,12 @@ struct f2fs_sb_info {
struct kmem_cache *inline_xattr_slab; /* inline xattr entry */
unsigned int inline_xattr_slab_size; /* default inline xattr slab size */
+ /* For reclaimed segs statistics per each GC mode */
+ unsigned int gc_segment_mode; /* GC state for reclaimed segments */
+ unsigned int gc_reclaimed_segs[MAX_GC_MODE]; /* Reclaimed segs for each mode */
+
+ unsigned long seq_file_ra_mul; /* multiplier for ra_pages of seq. files in fadvise */
+
#ifdef CONFIG_F2FS_FS_COMPRESSION
struct kmem_cache *page_array_slab; /* page array entry */
unsigned int page_array_slab_size; /* default page array slab size */
@@ -1747,6 +1771,20 @@ struct f2fs_sb_info {
unsigned int compress_watermark; /* cache page watermark */
atomic_t compress_page_hit; /* cache hit count */
#endif
+
+#ifdef CONFIG_F2FS_IOSTAT
+ /* For app/fs IO statistics */
+ spinlock_t iostat_lock;
+ unsigned long long rw_iostat[NR_IO_TYPE];
+ unsigned long long prev_rw_iostat[NR_IO_TYPE];
+ bool iostat_enable;
+ unsigned long iostat_next_period;
+ unsigned int iostat_period_ms;
+
+ /* For io latency related statistics info in one iostat period */
+ spinlock_t iostat_lat_lock;
+ struct iostat_lat_info *iostat_io_lat;
+#endif
};
struct f2fs_private_dio {
@@ -2034,36 +2072,6 @@ static inline void clear_ckpt_flags(struct f2fs_sb_info *sbi, unsigned int f)
spin_unlock_irqrestore(&sbi->cp_lock, flags);
}
-static inline void disable_nat_bits(struct f2fs_sb_info *sbi, bool lock)
-{
- unsigned long flags;
- unsigned char *nat_bits;
-
- /*
- * In order to re-enable nat_bits we need to call fsck.f2fs by
- * set_sbi_flag(sbi, SBI_NEED_FSCK). But it may give huge cost,
- * so let's rely on regular fsck or unclean shutdown.
- */
-
- if (lock)
- spin_lock_irqsave(&sbi->cp_lock, flags);
- __clear_ckpt_flags(F2FS_CKPT(sbi), CP_NAT_BITS_FLAG);
- nat_bits = NM_I(sbi)->nat_bits;
- NM_I(sbi)->nat_bits = NULL;
- if (lock)
- spin_unlock_irqrestore(&sbi->cp_lock, flags);
-
- kvfree(nat_bits);
-}
-
-static inline bool enabled_nat_bits(struct f2fs_sb_info *sbi,
- struct cp_control *cpc)
-{
- bool set = is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
-
- return (cpc) ? (cpc->reason & CP_UMOUNT) && set : set;
-}
-
static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
{
down_read(&sbi->cp_rwsem);
@@ -2587,7 +2595,7 @@ static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, NULL);
}
-static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
+static inline void *f2fs_kmem_cache_alloc_nofail(struct kmem_cache *cachep,
gfp_t flags)
{
void *entry;
@@ -2598,6 +2606,20 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
return entry;
}
+static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
+ gfp_t flags, bool nofail, struct f2fs_sb_info *sbi)
+{
+ if (nofail)
+ return f2fs_kmem_cache_alloc_nofail(cachep, flags);
+
+ if (time_to_inject(sbi, FAULT_SLAB_ALLOC)) {
+ f2fs_show_injection_info(sbi, FAULT_SLAB_ALLOC);
+ return NULL;
+ }
+
+ return kmem_cache_alloc(cachep, flags);
+}
+
static inline bool is_inflight_io(struct f2fs_sb_info *sbi, int type)
{
if (get_pages(sbi, F2FS_RD_DATA) || get_pages(sbi, F2FS_RD_NODE) ||
@@ -3210,47 +3232,6 @@ static inline int get_inline_xattr_addrs(struct inode *inode)
sizeof((f2fs_inode)->field)) \
<= (F2FS_OLD_ATTRIBUTE_SIZE + (extra_isize))) \
-#define DEFAULT_IOSTAT_PERIOD_MS 3000
-#define MIN_IOSTAT_PERIOD_MS 100
-/* maximum period of iostat tracing is 1 day */
-#define MAX_IOSTAT_PERIOD_MS 8640000
-
-static inline void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
-{
- int i;
-
- spin_lock(&sbi->iostat_lock);
- for (i = 0; i < NR_IO_TYPE; i++) {
- sbi->rw_iostat[i] = 0;
- sbi->prev_rw_iostat[i] = 0;
- }
- spin_unlock(&sbi->iostat_lock);
-}
-
-extern void f2fs_record_iostat(struct f2fs_sb_info *sbi);
-
-static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
- enum iostat_type type, unsigned long long io_bytes)
-{
- if (!sbi->iostat_enable)
- return;
- spin_lock(&sbi->iostat_lock);
- sbi->rw_iostat[type] += io_bytes;
-
- if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
- sbi->rw_iostat[APP_BUFFERED_IO] =
- sbi->rw_iostat[APP_WRITE_IO] -
- sbi->rw_iostat[APP_DIRECT_IO];
-
- if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
- sbi->rw_iostat[APP_BUFFERED_READ_IO] =
- sbi->rw_iostat[APP_READ_IO] -
- sbi->rw_iostat[APP_DIRECT_READ_IO];
- spin_unlock(&sbi->iostat_lock);
-
- f2fs_record_iostat(sbi);
-}
-
#define __is_large_section(sbi) ((sbi)->segs_per_sec > 1)
#define __is_meta_io(fio) (PAGE_TYPE_OF_BIO((fio)->type) == META)
@@ -3417,6 +3398,7 @@ int f2fs_truncate_inode_blocks(struct inode *inode, pgoff_t from);
int f2fs_truncate_xattr_node(struct inode *inode);
int f2fs_wait_on_node_pages_writeback(struct f2fs_sb_info *sbi,
unsigned int seq_id);
+bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi);
int f2fs_remove_inode_page(struct inode *inode);
struct page *f2fs_new_inode_page(struct inode *inode);
struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs);
@@ -3441,6 +3423,7 @@ int f2fs_recover_xattr_data(struct inode *inode, struct page *page);
int f2fs_recover_inode_page(struct f2fs_sb_info *sbi, struct page *page);
int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
unsigned int segno, struct f2fs_summary_block *sum);
+void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi);
int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
int f2fs_build_node_manager(struct f2fs_sb_info *sbi);
void f2fs_destroy_node_manager(struct f2fs_sb_info *sbi);
@@ -3464,6 +3447,7 @@ int f2fs_flush_device_cache(struct f2fs_sb_info *sbi);
void f2fs_destroy_flush_cmd_control(struct f2fs_sb_info *sbi, bool free);
void f2fs_invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
bool f2fs_is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
+int f2fs_start_discard_thread(struct f2fs_sb_info *sbi);
void f2fs_drop_discard_cmd(struct f2fs_sb_info *sbi);
void f2fs_stop_discard_thread(struct f2fs_sb_info *sbi);
bool f2fs_issue_discard_timeout(struct f2fs_sb_info *sbi);
@@ -3986,6 +3970,9 @@ void f2fs_destroy_extent_cache(void);
/*
* sysfs.c
*/
+#define MIN_RA_MUL 2
+#define MAX_RA_MUL 256
+
int __init f2fs_init_sysfs(void);
void f2fs_exit_sysfs(void);
int f2fs_register_sysfs(struct f2fs_sb_info *sbi);
@@ -4040,18 +4027,23 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed,
block_t blkaddr);
bool f2fs_cluster_is_empty(struct compress_ctx *cc);
bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
+bool f2fs_sanity_check_cluster(struct dnode_of_data *dn);
void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
int f2fs_write_multi_pages(struct compress_ctx *cc,
int *submitted,
struct writeback_control *wbc,
enum iostat_type io_type);
int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
+void f2fs_update_extent_tree_range_compressed(struct inode *inode,
+ pgoff_t fofs, block_t blkaddr, unsigned int llen,
+ unsigned int c_len);
int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
unsigned nr_pages, sector_t *last_block_in_bio,
bool is_readahead, bool for_write);
struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
void f2fs_decompress_end_io(struct decompress_io_ctx *dic, bool failed);
void f2fs_put_page_dic(struct page *page);
+unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn);
int f2fs_init_compress_ctx(struct compress_ctx *cc);
void f2fs_destroy_compress_ctx(struct compress_ctx *cc, bool reuse);
void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
@@ -4106,6 +4098,8 @@ static inline void f2fs_put_page_dic(struct page *page)
{
WARN_ON_ONCE(1);
}
+static inline unsigned int f2fs_cluster_blocks_are_contiguous(struct dnode_of_data *dn) { return 0; }
+static inline bool f2fs_sanity_check_cluster(struct dnode_of_data *dn) { return false; }
static inline int f2fs_init_compress_inode(struct f2fs_sb_info *sbi) { return 0; }
static inline void f2fs_destroy_compress_inode(struct f2fs_sb_info *sbi) { }
static inline int f2fs_init_page_array_cache(struct f2fs_sb_info *sbi) { return 0; }
@@ -4121,6 +4115,9 @@ static inline bool f2fs_load_compressed_page(struct f2fs_sb_info *sbi,
static inline void f2fs_invalidate_compress_pages(struct f2fs_sb_info *sbi,
nid_t ino) { }
#define inc_compr_inode_stat(inode) do { } while (0)
+static inline void f2fs_update_extent_tree_range_compressed(struct inode *inode,
+ pgoff_t fofs, block_t blkaddr, unsigned int llen,
+ unsigned int c_len) { }
#endif
static inline void set_compress_context(struct inode *inode)
@@ -4136,7 +4133,8 @@ static inline void set_compress_context(struct inode *inode)
1 << COMPRESS_CHKSUM : 0;
F2FS_I(inode)->i_cluster_size =
1 << F2FS_I(inode)->i_log_cluster_size;
- if (F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 &&
+ if ((F2FS_I(inode)->i_compress_algorithm == COMPRESS_LZ4 ||
+ F2FS_I(inode)->i_compress_algorithm == COMPRESS_ZSTD) &&
F2FS_OPTION(sbi).compress_level)
F2FS_I(inode)->i_compress_flag |=
F2FS_OPTION(sbi).compress_level <<
@@ -4304,16 +4302,6 @@ static inline int block_unaligned_IO(struct inode *inode,
return align & blocksize_mask;
}
-static inline int allow_outplace_dio(struct inode *inode,
- struct kiocb *iocb, struct iov_iter *iter)
-{
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int rw = iov_iter_rw(iter);
-
- return (f2fs_lfs_mode(sbi) && (rw == WRITE) &&
- !block_unaligned_IO(inode, iocb, iter));
-}
-
static inline bool f2fs_force_buffered_io(struct inode *inode,
struct kiocb *iocb, struct iov_iter *iter)
{
@@ -4368,6 +4356,11 @@ static inline bool is_journalled_quota(struct f2fs_sb_info *sbi)
return false;
}
+static inline bool f2fs_block_unit_discard(struct f2fs_sb_info *sbi)
+{
+ return F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK;
+}
+
#define EFSBADCRC EBADMSG /* Bad CRC detected */
#define EFSCORRUPTED EUCLEAN /* Filesystem is corrupted */
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 1ff333755721..9c8ef33bd8d3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -23,6 +23,7 @@
#include <linux/nls.h>
#include <linux/sched/signal.h>
#include <linux/fileattr.h>
+#include <linux/fadvise.h>
#include "f2fs.h"
#include "node.h"
@@ -30,6 +31,7 @@
#include "xattr.h"
#include "acl.h"
#include "gc.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#include <uapi/linux/f2fs.h>
@@ -258,8 +260,7 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
};
unsigned int seq_id = 0;
- if (unlikely(f2fs_readonly(inode->i_sb) ||
- is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ if (unlikely(f2fs_readonly(inode->i_sb)))
return 0;
trace_f2fs_sync_file_enter(inode);
@@ -273,7 +274,7 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
ret = file_write_and_wait_range(file, start, end);
clear_inode_flag(inode, FI_NEED_IPU);
- if (ret) {
+ if (ret || is_sbi_flag_set(sbi, SBI_CP_DISABLED)) {
trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
return ret;
}
@@ -298,6 +299,18 @@ static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
f2fs_exist_written_data(sbi, ino, UPDATE_INO))
goto flush_out;
goto out;
+ } else {
+ /*
+ * for OPU case, during fsync(), node can be persisted before
+ * data when lower device doesn't support write barrier, result
+ * in data corruption after SPO.
+ * So for strict fsync mode, force to use atomic write sematics
+ * to keep write order in between data/node and last node to
+ * avoid potential data corruption.
+ */
+ if (F2FS_OPTION(sbi).fsync_mode ==
+ FSYNC_MODE_STRICT && !atomic)
+ atomic = true;
}
go_write:
/*
@@ -737,6 +750,14 @@ int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
return err;
#ifdef CONFIG_F2FS_FS_COMPRESSION
+ /*
+ * For compressed file, after release compress blocks, don't allow write
+ * direct, but we should allow write direct after truncate to zero.
+ */
+ if (f2fs_compressed_file(inode) && !free_from
+ && is_inode_flag_set(inode, FI_COMPRESS_RELEASED))
+ clear_inode_flag(inode, FI_COMPRESS_RELEASED);
+
if (from != free_from) {
err = f2fs_truncate_partial_cluster(inode, from, lock);
if (err)
@@ -1082,7 +1103,6 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
}
if (pg_start < pg_end) {
- struct address_space *mapping = inode->i_mapping;
loff_t blk_start, blk_end;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
@@ -1092,16 +1112,15 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
blk_end = (loff_t)pg_end << PAGE_SHIFT;
down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
- filemap_invalidate_lock(mapping);
+ filemap_invalidate_lock(inode->i_mapping);
- truncate_inode_pages_range(mapping, blk_start,
- blk_end - 1);
+ truncate_pagecache_range(inode, blk_start, blk_end - 1);
f2fs_lock_op(sbi);
ret = f2fs_truncate_hole(inode, pg_start, pg_end);
f2fs_unlock_op(sbi);
- filemap_invalidate_unlock(mapping);
+ filemap_invalidate_unlock(inode->i_mapping);
up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
}
}
@@ -3473,8 +3492,8 @@ static int f2fs_release_compress_blocks(struct file *filp, unsigned long arg)
released_blocks += ret;
}
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_unlock(inode->i_mapping);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
out:
inode_unlock(inode);
@@ -3626,8 +3645,8 @@ static int f2fs_reserve_compress_blocks(struct file *filp, unsigned long arg)
reserved_blocks += ret;
}
- up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
filemap_invalidate_unlock(inode->i_mapping);
+ up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
if (ret >= 0) {
clear_inode_flag(inode, FI_COMPRESS_RELEASED);
@@ -4290,7 +4309,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
* back to buffered IO.
*/
if (!f2fs_force_buffered_io(inode, iocb, from) &&
- allow_outplace_dio(inode, iocb, from))
+ f2fs_lfs_mode(F2FS_I_SB(inode)))
goto write;
}
preallocated = true;
@@ -4330,6 +4349,34 @@ out:
return ret;
}
+static int f2fs_file_fadvise(struct file *filp, loff_t offset, loff_t len,
+ int advice)
+{
+ struct inode *inode;
+ struct address_space *mapping;
+ struct backing_dev_info *bdi;
+
+ if (advice == POSIX_FADV_SEQUENTIAL) {
+ inode = file_inode(filp);
+ if (S_ISFIFO(inode->i_mode))
+ return -ESPIPE;
+
+ mapping = filp->f_mapping;
+ if (!mapping || len < 0)
+ return -EINVAL;
+
+ bdi = inode_to_bdi(mapping->host);
+ filp->f_ra.ra_pages = bdi->ra_pages *
+ F2FS_I_SB(inode)->seq_file_ra_mul;
+ spin_lock(&filp->f_lock);
+ filp->f_mode &= ~FMODE_RANDOM;
+ spin_unlock(&filp->f_lock);
+ return 0;
+ }
+
+ return generic_fadvise(filp, offset, len, advice);
+}
+
#ifdef CONFIG_COMPAT
struct compat_f2fs_gc_range {
u32 sync;
@@ -4458,4 +4505,5 @@ const struct file_operations f2fs_file_operations = {
#endif
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
+ .fadvise = f2fs_file_fadvise,
};
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 0e42ee5f7770..77391e3b7d68 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -19,6 +19,7 @@
#include "node.h"
#include "segment.h"
#include "gc.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
static struct kmem_cache *victim_entry_slab;
@@ -371,7 +372,8 @@ static struct victim_entry *attach_victim_entry(struct f2fs_sb_info *sbi,
struct atgc_management *am = &sbi->am;
struct victim_entry *ve;
- ve = f2fs_kmem_cache_alloc(victim_entry_slab, GFP_NOFS);
+ ve = f2fs_kmem_cache_alloc(victim_entry_slab,
+ GFP_NOFS, true, NULL);
ve->mtime = mtime;
ve->segno = segno;
@@ -849,7 +851,8 @@ static void add_gc_inode(struct gc_inode_list *gc_list, struct inode *inode)
iput(inode);
return;
}
- new_ie = f2fs_kmem_cache_alloc(f2fs_inode_entry_slab, GFP_NOFS);
+ new_ie = f2fs_kmem_cache_alloc(f2fs_inode_entry_slab,
+ GFP_NOFS, true, NULL);
new_ie->inode = inode;
f2fs_radix_tree_insert(&gc_list->iroot, inode->i_ino, new_ie);
@@ -1497,8 +1500,10 @@ next_step:
int err;
if (S_ISREG(inode->i_mode)) {
- if (!down_write_trylock(&fi->i_gc_rwsem[READ]))
+ if (!down_write_trylock(&fi->i_gc_rwsem[READ])) {
+ sbi->skipped_gc_rwsem++;
continue;
+ }
if (!down_write_trylock(
&fi->i_gc_rwsem[WRITE])) {
sbi->skipped_gc_rwsem++;
@@ -1646,6 +1651,7 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
force_migrate);
stat_inc_seg_count(sbi, type, gc_type);
+ sbi->gc_reclaimed_segs[sbi->gc_mode]++;
migrated++;
freed:
@@ -1747,7 +1753,7 @@ gc_more:
round++;
}
- if (gc_type == FG_GC && seg_freed)
+ if (gc_type == FG_GC)
sbi->cur_victim_sec = NULL_SEGNO;
if (sync)
diff --git a/fs/f2fs/iostat.c b/fs/f2fs/iostat.c
new file mode 100644
index 000000000000..cdcf54ae0db8
--- /dev/null
+++ b/fs/f2fs/iostat.c
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * f2fs iostat support
+ *
+ * Copyright 2021 Google LLC
+ * Author: Daeho Jeong <daehojeong@google.com>
+ */
+
+#include <linux/fs.h>
+#include <linux/f2fs_fs.h>
+#include <linux/seq_file.h>
+
+#include "f2fs.h"
+#include "iostat.h"
+#include <trace/events/f2fs.h>
+
+#define NUM_PREALLOC_IOSTAT_CTXS 128
+static struct kmem_cache *bio_iostat_ctx_cache;
+static mempool_t *bio_iostat_ctx_pool;
+
+int __maybe_unused iostat_info_seq_show(struct seq_file *seq, void *offset)
+{
+ struct super_block *sb = seq->private;
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ time64_t now = ktime_get_real_seconds();
+
+ if (!sbi->iostat_enable)
+ return 0;
+
+ seq_printf(seq, "time: %-16llu\n", now);
+
+ /* print app write IOs */
+ seq_puts(seq, "[WRITE]\n");
+ seq_printf(seq, "app buffered: %-16llu\n",
+ sbi->rw_iostat[APP_BUFFERED_IO]);
+ seq_printf(seq, "app direct: %-16llu\n",
+ sbi->rw_iostat[APP_DIRECT_IO]);
+ seq_printf(seq, "app mapped: %-16llu\n",
+ sbi->rw_iostat[APP_MAPPED_IO]);
+
+ /* print fs write IOs */
+ seq_printf(seq, "fs data: %-16llu\n",
+ sbi->rw_iostat[FS_DATA_IO]);
+ seq_printf(seq, "fs node: %-16llu\n",
+ sbi->rw_iostat[FS_NODE_IO]);
+ seq_printf(seq, "fs meta: %-16llu\n",
+ sbi->rw_iostat[FS_META_IO]);
+ seq_printf(seq, "fs gc data: %-16llu\n",
+ sbi->rw_iostat[FS_GC_DATA_IO]);
+ seq_printf(seq, "fs gc node: %-16llu\n",
+ sbi->rw_iostat[FS_GC_NODE_IO]);
+ seq_printf(seq, "fs cp data: %-16llu\n",
+ sbi->rw_iostat[FS_CP_DATA_IO]);
+ seq_printf(seq, "fs cp node: %-16llu\n",
+ sbi->rw_iostat[FS_CP_NODE_IO]);
+ seq_printf(seq, "fs cp meta: %-16llu\n",
+ sbi->rw_iostat[FS_CP_META_IO]);
+
+ /* print app read IOs */
+ seq_puts(seq, "[READ]\n");
+ seq_printf(seq, "app buffered: %-16llu\n",
+ sbi->rw_iostat[APP_BUFFERED_READ_IO]);
+ seq_printf(seq, "app direct: %-16llu\n",
+ sbi->rw_iostat[APP_DIRECT_READ_IO]);
+ seq_printf(seq, "app mapped: %-16llu\n",
+ sbi->rw_iostat[APP_MAPPED_READ_IO]);
+
+ /* print fs read IOs */
+ seq_printf(seq, "fs data: %-16llu\n",
+ sbi->rw_iostat[FS_DATA_READ_IO]);
+ seq_printf(seq, "fs gc data: %-16llu\n",
+ sbi->rw_iostat[FS_GDATA_READ_IO]);
+ seq_printf(seq, "fs compr_data: %-16llu\n",
+ sbi->rw_iostat[FS_CDATA_READ_IO]);
+ seq_printf(seq, "fs node: %-16llu\n",
+ sbi->rw_iostat[FS_NODE_READ_IO]);
+ seq_printf(seq, "fs meta: %-16llu\n",
+ sbi->rw_iostat[FS_META_READ_IO]);
+
+ /* print other IOs */
+ seq_puts(seq, "[OTHER]\n");
+ seq_printf(seq, "fs discard: %-16llu\n",
+ sbi->rw_iostat[FS_DISCARD]);
+
+ return 0;
+}
+
+static inline void __record_iostat_latency(struct f2fs_sb_info *sbi)
+{
+ int io, idx = 0;
+ unsigned int cnt;
+ struct f2fs_iostat_latency iostat_lat[MAX_IO_TYPE][NR_PAGE_TYPE];
+ struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
+
+ spin_lock_irq(&sbi->iostat_lat_lock);
+ for (idx = 0; idx < MAX_IO_TYPE; idx++) {
+ for (io = 0; io < NR_PAGE_TYPE; io++) {
+ cnt = io_lat->bio_cnt[idx][io];
+ iostat_lat[idx][io].peak_lat =
+ jiffies_to_msecs(io_lat->peak_lat[idx][io]);
+ iostat_lat[idx][io].cnt = cnt;
+ iostat_lat[idx][io].avg_lat = cnt ?
+ jiffies_to_msecs(io_lat->sum_lat[idx][io]) / cnt : 0;
+ io_lat->sum_lat[idx][io] = 0;
+ io_lat->peak_lat[idx][io] = 0;
+ io_lat->bio_cnt[idx][io] = 0;
+ }
+ }
+ spin_unlock_irq(&sbi->iostat_lat_lock);
+
+ trace_f2fs_iostat_latency(sbi, iostat_lat);
+}
+
+static inline void f2fs_record_iostat(struct f2fs_sb_info *sbi)
+{
+ unsigned long long iostat_diff[NR_IO_TYPE];
+ int i;
+
+ if (time_is_after_jiffies(sbi->iostat_next_period))
+ return;
+
+ /* Need double check under the lock */
+ spin_lock(&sbi->iostat_lock);
+ if (time_is_after_jiffies(sbi->iostat_next_period)) {
+ spin_unlock(&sbi->iostat_lock);
+ return;
+ }
+ sbi->iostat_next_period = jiffies +
+ msecs_to_jiffies(sbi->iostat_period_ms);
+
+ for (i = 0; i < NR_IO_TYPE; i++) {
+ iostat_diff[i] = sbi->rw_iostat[i] -
+ sbi->prev_rw_iostat[i];
+ sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
+ }
+ spin_unlock(&sbi->iostat_lock);
+
+ trace_f2fs_iostat(sbi, iostat_diff);
+
+ __record_iostat_latency(sbi);
+}
+
+void f2fs_reset_iostat(struct f2fs_sb_info *sbi)
+{
+ struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
+ int i;
+
+ spin_lock(&sbi->iostat_lock);
+ for (i = 0; i < NR_IO_TYPE; i++) {
+ sbi->rw_iostat[i] = 0;
+ sbi->prev_rw_iostat[i] = 0;
+ }
+ spin_unlock(&sbi->iostat_lock);
+
+ spin_lock_irq(&sbi->iostat_lat_lock);
+ memset(io_lat, 0, sizeof(struct iostat_lat_info));
+ spin_unlock_irq(&sbi->iostat_lat_lock);
+}
+
+void f2fs_update_iostat(struct f2fs_sb_info *sbi,
+ enum iostat_type type, unsigned long long io_bytes)
+{
+ if (!sbi->iostat_enable)
+ return;
+
+ spin_lock(&sbi->iostat_lock);
+ sbi->rw_iostat[type] += io_bytes;
+
+ if (type == APP_WRITE_IO || type == APP_DIRECT_IO)
+ sbi->rw_iostat[APP_BUFFERED_IO] =
+ sbi->rw_iostat[APP_WRITE_IO] -
+ sbi->rw_iostat[APP_DIRECT_IO];
+
+ if (type == APP_READ_IO || type == APP_DIRECT_READ_IO)
+ sbi->rw_iostat[APP_BUFFERED_READ_IO] =
+ sbi->rw_iostat[APP_READ_IO] -
+ sbi->rw_iostat[APP_DIRECT_READ_IO];
+ spin_unlock(&sbi->iostat_lock);
+
+ f2fs_record_iostat(sbi);
+}
+
+static inline void __update_iostat_latency(struct bio_iostat_ctx *iostat_ctx,
+ int rw, bool is_sync)
+{
+ unsigned long ts_diff;
+ unsigned int iotype = iostat_ctx->type;
+ unsigned long flags;
+ struct f2fs_sb_info *sbi = iostat_ctx->sbi;
+ struct iostat_lat_info *io_lat = sbi->iostat_io_lat;
+ int idx;
+
+ if (!sbi->iostat_enable)
+ return;
+
+ ts_diff = jiffies - iostat_ctx->submit_ts;
+ if (iotype >= META_FLUSH)
+ iotype = META;
+
+ if (rw == 0) {
+ idx = READ_IO;
+ } else {
+ if (is_sync)
+ idx = WRITE_SYNC_IO;
+ else
+ idx = WRITE_ASYNC_IO;
+ }
+
+ spin_lock_irqsave(&sbi->iostat_lat_lock, flags);
+ io_lat->sum_lat[idx][iotype] += ts_diff;
+ io_lat->bio_cnt[idx][iotype]++;
+ if (ts_diff > io_lat->peak_lat[idx][iotype])
+ io_lat->peak_lat[idx][iotype] = ts_diff;
+ spin_unlock_irqrestore(&sbi->iostat_lat_lock, flags);
+}
+
+void iostat_update_and_unbind_ctx(struct bio *bio, int rw)
+{
+ struct bio_iostat_ctx *iostat_ctx = bio->bi_private;
+ bool is_sync = bio->bi_opf & REQ_SYNC;
+
+ if (rw == 0)
+ bio->bi_private = iostat_ctx->post_read_ctx;
+ else
+ bio->bi_private = iostat_ctx->sbi;
+ __update_iostat_latency(iostat_ctx, rw, is_sync);
+ mempool_free(iostat_ctx, bio_iostat_ctx_pool);
+}
+
+void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
+ struct bio *bio, struct bio_post_read_ctx *ctx)
+{
+ struct bio_iostat_ctx *iostat_ctx;
+ /* Due to the mempool, this never fails. */
+ iostat_ctx = mempool_alloc(bio_iostat_ctx_pool, GFP_NOFS);
+ iostat_ctx->sbi = sbi;
+ iostat_ctx->submit_ts = 0;
+ iostat_ctx->type = 0;
+ iostat_ctx->post_read_ctx = ctx;
+ bio->bi_private = iostat_ctx;
+}
+
+int __init f2fs_init_iostat_processing(void)
+{
+ bio_iostat_ctx_cache =
+ kmem_cache_create("f2fs_bio_iostat_ctx",
+ sizeof(struct bio_iostat_ctx), 0, 0, NULL);
+ if (!bio_iostat_ctx_cache)
+ goto fail;
+ bio_iostat_ctx_pool =
+ mempool_create_slab_pool(NUM_PREALLOC_IOSTAT_CTXS,
+ bio_iostat_ctx_cache);
+ if (!bio_iostat_ctx_pool)
+ goto fail_free_cache;
+ return 0;
+
+fail_free_cache:
+ kmem_cache_destroy(bio_iostat_ctx_cache);
+fail:
+ return -ENOMEM;
+}
+
+void f2fs_destroy_iostat_processing(void)
+{
+ mempool_destroy(bio_iostat_ctx_pool);
+ kmem_cache_destroy(bio_iostat_ctx_cache);
+}
+
+int f2fs_init_iostat(struct f2fs_sb_info *sbi)
+{
+ /* init iostat info */
+ spin_lock_init(&sbi->iostat_lock);
+ spin_lock_init(&sbi->iostat_lat_lock);
+ sbi->iostat_enable = false;
+ sbi->iostat_period_ms = DEFAULT_IOSTAT_PERIOD_MS;
+ sbi->iostat_io_lat = f2fs_kzalloc(sbi, sizeof(struct iostat_lat_info),
+ GFP_KERNEL);
+ if (!sbi->iostat_io_lat)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void f2fs_destroy_iostat(struct f2fs_sb_info *sbi)
+{
+ kfree(sbi->iostat_io_lat);
+}
diff --git a/fs/f2fs/iostat.h b/fs/f2fs/iostat.h
new file mode 100644
index 000000000000..22a2d01f57ef
--- /dev/null
+++ b/fs/f2fs/iostat.h
@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2021 Google LLC
+ * Author: Daeho Jeong <daehojeong@google.com>
+ */
+#ifndef __F2FS_IOSTAT_H__
+#define __F2FS_IOSTAT_H__
+
+struct bio_post_read_ctx;
+
+#ifdef CONFIG_F2FS_IOSTAT
+
+#define DEFAULT_IOSTAT_PERIOD_MS 3000
+#define MIN_IOSTAT_PERIOD_MS 100
+/* maximum period of iostat tracing is 1 day */
+#define MAX_IOSTAT_PERIOD_MS 8640000
+
+enum {
+ READ_IO,
+ WRITE_SYNC_IO,
+ WRITE_ASYNC_IO,
+ MAX_IO_TYPE,
+};
+
+struct iostat_lat_info {
+ unsigned long sum_lat[MAX_IO_TYPE][NR_PAGE_TYPE]; /* sum of io latencies */
+ unsigned long peak_lat[MAX_IO_TYPE][NR_PAGE_TYPE]; /* peak io latency */
+ unsigned int bio_cnt[MAX_IO_TYPE][NR_PAGE_TYPE]; /* bio count */
+};
+
+extern int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
+ void *offset);
+extern void f2fs_reset_iostat(struct f2fs_sb_info *sbi);
+extern void f2fs_update_iostat(struct f2fs_sb_info *sbi,
+ enum iostat_type type, unsigned long long io_bytes);
+
+struct bio_iostat_ctx {
+ struct f2fs_sb_info *sbi;
+ unsigned long submit_ts;
+ enum page_type type;
+ struct bio_post_read_ctx *post_read_ctx;
+};
+
+static inline void iostat_update_submit_ctx(struct bio *bio,
+ enum page_type type)
+{
+ struct bio_iostat_ctx *iostat_ctx = bio->bi_private;
+
+ iostat_ctx->submit_ts = jiffies;
+ iostat_ctx->type = type;
+}
+
+static inline struct bio_post_read_ctx *get_post_read_ctx(struct bio *bio)
+{
+ struct bio_iostat_ctx *iostat_ctx = bio->bi_private;
+
+ return iostat_ctx->post_read_ctx;
+}
+
+extern void iostat_update_and_unbind_ctx(struct bio *bio, int rw);
+extern void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
+ struct bio *bio, struct bio_post_read_ctx *ctx);
+extern int f2fs_init_iostat_processing(void);
+extern void f2fs_destroy_iostat_processing(void);
+extern int f2fs_init_iostat(struct f2fs_sb_info *sbi);
+extern void f2fs_destroy_iostat(struct f2fs_sb_info *sbi);
+#else
+static inline void f2fs_update_iostat(struct f2fs_sb_info *sbi,
+ enum iostat_type type, unsigned long long io_bytes) {}
+static inline void iostat_update_and_unbind_ctx(struct bio *bio, int rw) {}
+static inline void iostat_alloc_and_bind_ctx(struct f2fs_sb_info *sbi,
+ struct bio *bio, struct bio_post_read_ctx *ctx) {}
+static inline void iostat_update_submit_ctx(struct bio *bio,
+ enum page_type type) {}
+static inline struct bio_post_read_ctx *get_post_read_ctx(struct bio *bio)
+{
+ return bio->bi_private;
+}
+static inline int f2fs_init_iostat_processing(void) { return 0; }
+static inline void f2fs_destroy_iostat_processing(void) {}
+static inline int f2fs_init_iostat(struct f2fs_sb_info *sbi) { return 0; }
+static inline void f2fs_destroy_iostat(struct f2fs_sb_info *sbi) {}
+#endif
+#endif /* __F2FS_IOSTAT_H__ */
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 0be9e2d7120e..e863136081b4 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -17,6 +17,7 @@
#include "node.h"
#include "segment.h"
#include "xattr.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#define on_f2fs_build_free_nids(nmi) mutex_is_locked(&(nm_i)->build_lock)
@@ -162,14 +163,13 @@ static struct page *get_next_nat_page(struct f2fs_sb_info *sbi, nid_t nid)
return dst_page;
}
-static struct nat_entry *__alloc_nat_entry(nid_t nid, bool no_fail)
+static struct nat_entry *__alloc_nat_entry(struct f2fs_sb_info *sbi,
+ nid_t nid, bool no_fail)
{
struct nat_entry *new;
- if (no_fail)
- new = f2fs_kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO);
- else
- new = kmem_cache_alloc(nat_entry_slab, GFP_F2FS_ZERO);
+ new = f2fs_kmem_cache_alloc(nat_entry_slab,
+ GFP_F2FS_ZERO, no_fail, sbi);
if (new) {
nat_set_nid(new, nid);
nat_reset_flag(new);
@@ -242,7 +242,8 @@ static struct nat_entry_set *__grab_nat_entry_set(struct f2fs_nm_info *nm_i,
head = radix_tree_lookup(&nm_i->nat_set_root, set);
if (!head) {
- head = f2fs_kmem_cache_alloc(nat_entry_set_slab, GFP_NOFS);
+ head = f2fs_kmem_cache_alloc(nat_entry_set_slab,
+ GFP_NOFS, true, NULL);
INIT_LIST_HEAD(&head->entry_list);
INIT_LIST_HEAD(&head->set_list);
@@ -329,7 +330,8 @@ static unsigned int f2fs_add_fsync_node_entry(struct f2fs_sb_info *sbi,
unsigned long flags;
unsigned int seq_id;
- fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab, GFP_NOFS);
+ fn = f2fs_kmem_cache_alloc(fsync_node_entry_slab,
+ GFP_NOFS, true, NULL);
get_page(page);
fn->page = page;
@@ -428,7 +430,7 @@ static void cache_nat_entry(struct f2fs_sb_info *sbi, nid_t nid,
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct nat_entry *new, *e;
- new = __alloc_nat_entry(nid, false);
+ new = __alloc_nat_entry(sbi, nid, false);
if (!new)
return;
@@ -451,7 +453,7 @@ static void set_node_addr(struct f2fs_sb_info *sbi, struct node_info *ni,
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
struct nat_entry *e;
- struct nat_entry *new = __alloc_nat_entry(ni->nid, true);
+ struct nat_entry *new = __alloc_nat_entry(sbi, ni->nid, true);
down_write(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, ni->nid);
@@ -552,7 +554,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
int i;
ni->nid = nid;
-
+retry:
/* Check nat cache */
down_read(&nm_i->nat_tree_lock);
e = __lookup_nat_cache(nm_i, nid);
@@ -564,10 +566,19 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
return 0;
}
- memset(&ne, 0, sizeof(struct f2fs_nat_entry));
+ /*
+ * Check current segment summary by trying to grab journal_rwsem first.
+ * This sem is on the critical path on the checkpoint requiring the above
+ * nat_tree_lock. Therefore, we should retry, if we failed to grab here
+ * while not bothering checkpoint.
+ */
+ if (!rwsem_is_locked(&sbi->cp_global_sem)) {
+ down_read(&curseg->journal_rwsem);
+ } else if (!down_read_trylock(&curseg->journal_rwsem)) {
+ up_read(&nm_i->nat_tree_lock);
+ goto retry;
+ }
- /* Check current segment summary */
- down_read(&curseg->journal_rwsem);
i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0);
if (i >= 0) {
ne = nat_in_journal(journal, i);
@@ -832,6 +843,26 @@ int f2fs_get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
dn->ofs_in_node = offset[level];
dn->node_page = npage[level];
dn->data_blkaddr = f2fs_data_blkaddr(dn);
+
+ if (is_inode_flag_set(dn->inode, FI_COMPRESSED_FILE) &&
+ f2fs_sb_has_readonly(sbi)) {
+ unsigned int c_len = f2fs_cluster_blocks_are_contiguous(dn);
+ block_t blkaddr;
+
+ if (!c_len)
+ goto out;
+
+ blkaddr = f2fs_data_blkaddr(dn);
+ if (blkaddr == COMPRESS_ADDR)
+ blkaddr = data_blkaddr(dn->inode, dn->node_page,
+ dn->ofs_in_node + 1);
+
+ f2fs_update_extent_tree_range_compressed(dn->inode,
+ index, blkaddr,
+ F2FS_I(dn->inode)->i_cluster_size,
+ c_len);
+ }
+out:
return 0;
release_pages:
@@ -1321,7 +1352,8 @@ static int read_node_page(struct page *page, int op_flags)
if (err)
return err;
- if (unlikely(ni.blk_addr == NULL_ADDR) ||
+ /* NEW_ADDR can be seen, after cp_error drops some dirty node pages */
+ if (unlikely(ni.blk_addr == NULL_ADDR || ni.blk_addr == NEW_ADDR) ||
is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)) {
ClearPageUptodate(page);
return -ENOENT;
@@ -2181,6 +2213,24 @@ static void __move_free_nid(struct f2fs_sb_info *sbi, struct free_nid *i,
}
}
+bool f2fs_nat_bitmap_enabled(struct f2fs_sb_info *sbi)
+{
+ struct f2fs_nm_info *nm_i = NM_I(sbi);
+ unsigned int i;
+ bool ret = true;
+
+ down_read(&nm_i->nat_tree_lock);
+ for (i = 0; i < nm_i->nat_blocks; i++) {
+ if (!test_bit_le(i, nm_i->nat_block_bitmap)) {
+ ret = false;
+ break;
+ }
+ }
+ up_read(&nm_i->nat_tree_lock);
+
+ return ret;
+}
+
static void update_free_nid_bitmap(struct f2fs_sb_info *sbi, nid_t nid,
bool set, bool build)
{
@@ -2222,7 +2272,7 @@ static bool add_free_nid(struct f2fs_sb_info *sbi,
if (unlikely(f2fs_check_nid_range(sbi, nid)))
return false;
- i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS);
+ i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS, true, NULL);
i->nid = nid;
i->state = FREE_NID;
@@ -2812,7 +2862,7 @@ static void remove_nats_in_journal(struct f2fs_sb_info *sbi)
ne = __lookup_nat_cache(nm_i, nid);
if (!ne) {
- ne = __alloc_nat_entry(nid, true);
+ ne = __alloc_nat_entry(sbi, nid, true);
__init_nat_entry(nm_i, ne, &raw_ne, true);
}
@@ -2852,7 +2902,23 @@ add_out:
list_add_tail(&nes->set_list, head);
}
-static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
+static void __update_nat_bits(struct f2fs_nm_info *nm_i, unsigned int nat_ofs,
+ unsigned int valid)
+{
+ if (valid == 0) {
+ __set_bit_le(nat_ofs, nm_i->empty_nat_bits);
+ __clear_bit_le(nat_ofs, nm_i->full_nat_bits);
+ return;
+ }
+
+ __clear_bit_le(nat_ofs, nm_i->empty_nat_bits);
+ if (valid == NAT_ENTRY_PER_BLOCK)
+ __set_bit_le(nat_ofs, nm_i->full_nat_bits);
+ else
+ __clear_bit_le(nat_ofs, nm_i->full_nat_bits);
+}
+
+static void update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
struct page *page)
{
struct f2fs_nm_info *nm_i = NM_I(sbi);
@@ -2861,7 +2927,7 @@ static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
int valid = 0;
int i = 0;
- if (!enabled_nat_bits(sbi, NULL))
+ if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG))
return;
if (nat_index == 0) {
@@ -2872,17 +2938,36 @@ static void __update_nat_bits(struct f2fs_sb_info *sbi, nid_t start_nid,
if (le32_to_cpu(nat_blk->entries[i].block_addr) != NULL_ADDR)
valid++;
}
- if (valid == 0) {
- __set_bit_le(nat_index, nm_i->empty_nat_bits);
- __clear_bit_le(nat_index, nm_i->full_nat_bits);
- return;
+
+ __update_nat_bits(nm_i, nat_index, valid);
+}
+
+void f2fs_enable_nat_bits(struct f2fs_sb_info *sbi)
+{
+ struct f2fs_nm_info *nm_i = NM_I(sbi);
+ unsigned int nat_ofs;
+
+ down_read(&nm_i->nat_tree_lock);
+
+ for (nat_ofs = 0; nat_ofs < nm_i->nat_blocks; nat_ofs++) {
+ unsigned int valid = 0, nid_ofs = 0;
+
+ /* handle nid zero due to it should never be used */
+ if (unlikely(nat_ofs == 0)) {
+ valid = 1;
+ nid_ofs = 1;
+ }
+
+ for (; nid_ofs < NAT_ENTRY_PER_BLOCK; nid_ofs++) {
+ if (!test_bit_le(nid_ofs,
+ nm_i->free_nid_bitmap[nat_ofs]))
+ valid++;
+ }
+
+ __update_nat_bits(nm_i, nat_ofs, valid);
}
- __clear_bit_le(nat_index, nm_i->empty_nat_bits);
- if (valid == NAT_ENTRY_PER_BLOCK)
- __set_bit_le(nat_index, nm_i->full_nat_bits);
- else
- __clear_bit_le(nat_index, nm_i->full_nat_bits);
+ up_read(&nm_i->nat_tree_lock);
}
static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
@@ -2901,7 +2986,7 @@ static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
* #1, flush nat entries to journal in current hot data summary block.
* #2, flush nat entries to nat page.
*/
- if (enabled_nat_bits(sbi, cpc) ||
+ if ((cpc->reason & CP_UMOUNT) ||
!__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL))
to_journal = false;
@@ -2948,7 +3033,7 @@ static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
if (to_journal) {
up_write(&curseg->journal_rwsem);
} else {
- __update_nat_bits(sbi, start_nid, page);
+ update_nat_bits(sbi, start_nid, page);
f2fs_put_page(page, 1);
}
@@ -2979,7 +3064,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
* during unmount, let's flush nat_bits before checking
* nat_cnt[DIRTY_NAT].
*/
- if (enabled_nat_bits(sbi, cpc)) {
+ if (cpc->reason & CP_UMOUNT) {
down_write(&nm_i->nat_tree_lock);
remove_nats_in_journal(sbi);
up_write(&nm_i->nat_tree_lock);
@@ -2995,7 +3080,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
* entries, remove all entries from journal and merge them
* into nat entry set.
*/
- if (enabled_nat_bits(sbi, cpc) ||
+ if (cpc->reason & CP_UMOUNT ||
!__has_cursum_space(journal,
nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL))
remove_nats_in_journal(sbi);
@@ -3032,15 +3117,18 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
__u64 cp_ver = cur_cp_version(ckpt);
block_t nat_bits_addr;
- if (!enabled_nat_bits(sbi, NULL))
- return 0;
-
nm_i->nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
nm_i->nat_bits = f2fs_kvzalloc(sbi,
nm_i->nat_bits_blocks << F2FS_BLKSIZE_BITS, GFP_KERNEL);
if (!nm_i->nat_bits)
return -ENOMEM;
+ nm_i->full_nat_bits = nm_i->nat_bits + 8;
+ nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes;
+
+ if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG))
+ return 0;
+
nat_bits_addr = __start_cp_addr(sbi) + sbi->blocks_per_seg -
nm_i->nat_bits_blocks;
for (i = 0; i < nm_i->nat_bits_blocks; i++) {
@@ -3057,13 +3145,12 @@ static int __get_nat_bitmaps(struct f2fs_sb_info *sbi)
cp_ver |= (cur_cp_crc(ckpt) << 32);
if (cpu_to_le64(cp_ver) != *(__le64 *)nm_i->nat_bits) {
- disable_nat_bits(sbi, true);
+ clear_ckpt_flags(sbi, CP_NAT_BITS_FLAG);
+ f2fs_notice(sbi, "Disable nat_bits due to incorrect cp_ver (%llu, %llu)",
+ cp_ver, le64_to_cpu(*(__le64 *)nm_i->nat_bits));
return 0;
}
- nm_i->full_nat_bits = nm_i->nat_bits + 8;
- nm_i->empty_nat_bits = nm_i->full_nat_bits + nat_bits_bytes;
-
f2fs_notice(sbi, "Found nat_bits in checkpoint");
return 0;
}
@@ -3074,7 +3161,7 @@ static inline void load_free_nid_bitmap(struct f2fs_sb_info *sbi)
unsigned int i = 0;
nid_t nid, last_nid;
- if (!enabled_nat_bits(sbi, NULL))
+ if (!is_set_ckpt_flags(sbi, CP_NAT_BITS_FLAG))
return;
for (i = 0; i < nm_i->nat_blocks; i++) {
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 695eacfe776c..04655511d7f5 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -91,7 +91,8 @@ static struct fsync_inode_entry *add_fsync_inode(struct f2fs_sb_info *sbi,
goto err_out;
}
- entry = f2fs_kmem_cache_alloc(fsync_entry_slab, GFP_F2FS_ZERO);
+ entry = f2fs_kmem_cache_alloc(fsync_entry_slab,
+ GFP_F2FS_ZERO, true, NULL);
entry->inode = inode;
list_add_tail(&entry->list, head);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 15cc89eef28d..a135d2247415 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -20,6 +20,7 @@
#include "segment.h"
#include "node.h"
#include "gc.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
#define __reverse_ffz(x) __reverse_ffs(~(x))
@@ -188,7 +189,8 @@ void f2fs_register_inmem_page(struct inode *inode, struct page *page)
set_page_private_atomic(page);
- new = f2fs_kmem_cache_alloc(inmem_entry_slab, GFP_NOFS);
+ new = f2fs_kmem_cache_alloc(inmem_entry_slab,
+ GFP_NOFS, true, NULL);
/* add atomic page indices to the list */
new->page = page;
@@ -776,11 +778,22 @@ int f2fs_flush_device_cache(struct f2fs_sb_info *sbi)
return 0;
for (i = 1; i < sbi->s_ndevs; i++) {
+ int count = DEFAULT_RETRY_IO_COUNT;
+
if (!f2fs_test_bit(i, (char *)&sbi->dirty_device))
continue;
- ret = __submit_flush_wait(sbi, FDEV(i).bdev);
- if (ret)
+
+ do {
+ ret = __submit_flush_wait(sbi, FDEV(i).bdev);
+ if (ret)
+ congestion_wait(BLK_RW_ASYNC,
+ DEFAULT_IO_TIMEOUT);
+ } while (ret && --count);
+
+ if (ret) {
+ f2fs_stop_checkpoint(sbi, false);
break;
+ }
spin_lock(&sbi->dev_lock);
f2fs_clear_bit(i, (char *)&sbi->dirty_device);
@@ -990,7 +1003,7 @@ static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi,
pend_list = &dcc->pend_list[plist_idx(len)];
- dc = f2fs_kmem_cache_alloc(discard_cmd_slab, GFP_NOFS);
+ dc = f2fs_kmem_cache_alloc(discard_cmd_slab, GFP_NOFS, true, NULL);
INIT_LIST_HEAD(&dc->list);
dc->bdev = bdev;
dc->lstart = lstart;
@@ -1893,7 +1906,8 @@ static int f2fs_issue_discard(struct f2fs_sb_info *sbi,
se = get_seg_entry(sbi, GET_SEGNO(sbi, i));
offset = GET_BLKOFF_FROM_SEG0(sbi, i);
- if (!f2fs_test_and_set_bit(offset, se->discard_map))
+ if (f2fs_block_unit_discard(sbi) &&
+ !f2fs_test_and_set_bit(offset, se->discard_map))
sbi->discard_blks--;
}
@@ -1918,7 +1932,8 @@ static bool add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc,
struct list_head *head = &SM_I(sbi)->dcc_info->entry_list;
int i;
- if (se->valid_blocks == max_blocks || !f2fs_hw_support_discard(sbi))
+ if (se->valid_blocks == max_blocks || !f2fs_hw_support_discard(sbi) ||
+ !f2fs_block_unit_discard(sbi))
return false;
if (!force) {
@@ -1949,7 +1964,7 @@ static bool add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc,
if (!de) {
de = f2fs_kmem_cache_alloc(discard_entry_slab,
- GFP_F2FS_ZERO);
+ GFP_F2FS_ZERO, true, NULL);
de->start_blkaddr = START_BLOCK(sbi, cpc->trim_start);
list_add_tail(&de->list, head);
}
@@ -2003,14 +2018,18 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
unsigned int start = 0, end = -1;
unsigned int secno, start_segno;
bool force = (cpc->reason & CP_DISCARD);
- bool need_align = f2fs_lfs_mode(sbi) && __is_large_section(sbi);
+ bool section_alignment = F2FS_OPTION(sbi).discard_unit ==
+ DISCARD_UNIT_SECTION;
+
+ if (f2fs_lfs_mode(sbi) && __is_large_section(sbi))
+ section_alignment = true;
mutex_lock(&dirty_i->seglist_lock);
while (1) {
int i;
- if (need_align && end != -1)
+ if (section_alignment && end != -1)
end--;
start = find_next_bit(prefree_map, MAIN_SEGS(sbi), end + 1);
if (start >= MAIN_SEGS(sbi))
@@ -2018,7 +2037,7 @@ void f2fs_clear_prefree_segments(struct f2fs_sb_info *sbi,
end = find_next_zero_bit(prefree_map, MAIN_SEGS(sbi),
start + 1);
- if (need_align) {
+ if (section_alignment) {
start = rounddown(start, sbi->segs_per_sec);
end = roundup(end, sbi->segs_per_sec);
}
@@ -2056,6 +2075,9 @@ next:
}
mutex_unlock(&dirty_i->seglist_lock);
+ if (!f2fs_block_unit_discard(sbi))
+ goto wakeup;
+
/* send small discards */
list_for_each_entry_safe(entry, this, head, list) {
unsigned int cur_pos = 0, next_pos, len, total_len = 0;
@@ -2089,12 +2111,29 @@ skip:
dcc->nr_discards -= total_len;
}
+wakeup:
wake_up_discard_thread(sbi, false);
}
-static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
+int f2fs_start_discard_thread(struct f2fs_sb_info *sbi)
{
dev_t dev = sbi->sb->s_bdev->bd_dev;
+ struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
+ int err = 0;
+
+ if (!f2fs_realtime_discard_enable(sbi))
+ return 0;
+
+ dcc->f2fs_issue_discard = kthread_run(issue_discard_thread, sbi,
+ "f2fs_discard-%u:%u", MAJOR(dev), MINOR(dev));
+ if (IS_ERR(dcc->f2fs_issue_discard))
+ err = PTR_ERR(dcc->f2fs_issue_discard);
+
+ return err;
+}
+
+static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
+{
struct discard_cmd_control *dcc;
int err = 0, i;
@@ -2108,6 +2147,11 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
return -ENOMEM;
dcc->discard_granularity = DEFAULT_DISCARD_GRANULARITY;
+ if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
+ dcc->discard_granularity = sbi->blocks_per_seg;
+ else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
+ dcc->discard_granularity = BLKS_PER_SEC(sbi);
+
INIT_LIST_HEAD(&dcc->entry_list);
for (i = 0; i < MAX_PLIST_NUM; i++)
INIT_LIST_HEAD(&dcc->pend_list[i]);
@@ -2127,13 +2171,10 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
init_waitqueue_head(&dcc->discard_wait_queue);
SM_I(sbi)->dcc_info = dcc;
init_thread:
- dcc->f2fs_issue_discard = kthread_run(issue_discard_thread, sbi,
- "f2fs_discard-%u:%u", MAJOR(dev), MINOR(dev));
- if (IS_ERR(dcc->f2fs_issue_discard)) {
- err = PTR_ERR(dcc->f2fs_issue_discard);
+ err = f2fs_start_discard_thread(sbi);
+ if (err) {
kfree(dcc);
SM_I(sbi)->dcc_info = NULL;
- return err;
}
return err;
@@ -2255,7 +2296,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
del = 0;
}
- if (!f2fs_test_and_set_bit(offset, se->discard_map))
+ if (f2fs_block_unit_discard(sbi) &&
+ !f2fs_test_and_set_bit(offset, se->discard_map))
sbi->discard_blks--;
/*
@@ -2297,7 +2339,8 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
}
}
- if (f2fs_test_and_clear_bit(offset, se->discard_map))
+ if (f2fs_block_unit_discard(sbi) &&
+ f2fs_test_and_clear_bit(offset, se->discard_map))
sbi->discard_blks++;
}
if (!f2fs_test_bit(offset, se->ckpt_valid_map))
@@ -3563,7 +3606,7 @@ int f2fs_inplace_write_data(struct f2fs_io_info *fio)
goto drop_bio;
}
- if (is_sbi_flag_set(sbi, SBI_NEED_FSCK) || f2fs_cp_error(sbi)) {
+ if (f2fs_cp_error(sbi)) {
err = -EIO;
goto drop_bio;
}
@@ -4071,7 +4114,8 @@ static struct page *get_next_sit_page(struct f2fs_sb_info *sbi,
static struct sit_entry_set *grab_sit_entry_set(void)
{
struct sit_entry_set *ses =
- f2fs_kmem_cache_alloc(sit_entry_set_slab, GFP_NOFS);
+ f2fs_kmem_cache_alloc(sit_entry_set_slab,
+ GFP_NOFS, true, NULL);
ses->entry_cnt = 0;
INIT_LIST_HEAD(&ses->set_list);
@@ -4282,6 +4326,7 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
unsigned int sit_segs, start;
char *src_bitmap, *bitmap;
unsigned int bitmap_size, main_bitmap_size, sit_bitmap_size;
+ unsigned int discard_map = f2fs_block_unit_discard(sbi) ? 1 : 0;
/* allocate memory for SIT information */
sit_i = f2fs_kzalloc(sbi, sizeof(struct sit_info), GFP_KERNEL);
@@ -4304,9 +4349,9 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
return -ENOMEM;
#ifdef CONFIG_F2FS_CHECK_FS
- bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * 4;
+ bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * (3 + discard_map);
#else
- bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * 3;
+ bitmap_size = MAIN_SEGS(sbi) * SIT_VBLOCK_MAP_SIZE * (2 + discard_map);
#endif
sit_i->bitmap = f2fs_kvzalloc(sbi, bitmap_size, GFP_KERNEL);
if (!sit_i->bitmap)
@@ -4326,8 +4371,10 @@ static int build_sit_info(struct f2fs_sb_info *sbi)
bitmap += SIT_VBLOCK_MAP_SIZE;
#endif
- sit_i->sentries[start].discard_map = bitmap;
- bitmap += SIT_VBLOCK_MAP_SIZE;
+ if (discard_map) {
+ sit_i->sentries[start].discard_map = bitmap;
+ bitmap += SIT_VBLOCK_MAP_SIZE;
+ }
}
sit_i->tmp_map = f2fs_kzalloc(sbi, SIT_VBLOCK_MAP_SIZE, GFP_KERNEL);
@@ -4489,17 +4536,19 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
if (IS_NODESEG(se->type))
total_node_blocks += se->valid_blocks;
- /* build discard map only one time */
- if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) {
- memset(se->discard_map, 0xff,
- SIT_VBLOCK_MAP_SIZE);
- } else {
- memcpy(se->discard_map,
- se->cur_valid_map,
- SIT_VBLOCK_MAP_SIZE);
- sbi->discard_blks +=
- sbi->blocks_per_seg -
- se->valid_blocks;
+ if (f2fs_block_unit_discard(sbi)) {
+ /* build discard map only one time */
+ if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) {
+ memset(se->discard_map, 0xff,
+ SIT_VBLOCK_MAP_SIZE);
+ } else {
+ memcpy(se->discard_map,
+ se->cur_valid_map,
+ SIT_VBLOCK_MAP_SIZE);
+ sbi->discard_blks +=
+ sbi->blocks_per_seg -
+ se->valid_blocks;
+ }
}
if (__is_large_section(sbi))
@@ -4535,13 +4584,15 @@ static int build_sit_entries(struct f2fs_sb_info *sbi)
if (IS_NODESEG(se->type))
total_node_blocks += se->valid_blocks;
- if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) {
- memset(se->discard_map, 0xff, SIT_VBLOCK_MAP_SIZE);
- } else {
- memcpy(se->discard_map, se->cur_valid_map,
- SIT_VBLOCK_MAP_SIZE);
- sbi->discard_blks += old_valid_blocks;
- sbi->discard_blks -= se->valid_blocks;
+ if (f2fs_block_unit_discard(sbi)) {
+ if (is_set_ckpt_flags(sbi, CP_TRIMMED_FLAG)) {
+ memset(se->discard_map, 0xff, SIT_VBLOCK_MAP_SIZE);
+ } else {
+ memcpy(se->discard_map, se->cur_valid_map,
+ SIT_VBLOCK_MAP_SIZE);
+ sbi->discard_blks += old_valid_blocks;
+ sbi->discard_blks -= se->valid_blocks;
+ }
}
if (__is_large_section(sbi)) {
@@ -5159,7 +5210,7 @@ int f2fs_build_segment_manager(struct f2fs_sb_info *sbi)
sm_info->ipu_policy = 1 << F2FS_IPU_FSYNC;
sm_info->min_ipu_util = DEF_MIN_IPU_UTIL;
sm_info->min_fsync_blocks = DEF_MIN_FSYNC_BLOCKS;
- sm_info->min_seq_blocks = sbi->blocks_per_seg * sbi->segs_per_sec;
+ sm_info->min_seq_blocks = sbi->blocks_per_seg;
sm_info->min_hot_blocks = DEF_MIN_HOT_BLOCKS;
sm_info->min_ssr_sections = reserved_sections(sbi);
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 050230c70a53..89fff258727d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -142,7 +142,7 @@ enum {
};
/*
- * In the victim_sel_policy->alloc_mode, there are two block allocation modes.
+ * In the victim_sel_policy->alloc_mode, there are three block allocation modes.
* LFS writes data sequentially with cleaning operations.
* SSR (Slack Space Recycle) reuses obsolete space without cleaning operations.
* AT_SSR (Age Threshold based Slack Space Recycle) merges fragments into
@@ -155,7 +155,7 @@ enum {
};
/*
- * In the victim_sel_policy->gc_mode, there are two gc, aka cleaning, modes.
+ * In the victim_sel_policy->gc_mode, there are three gc, aka cleaning, modes.
* GC_CB is based on cost-benefit algorithm.
* GC_GREEDY is based on greedy algorithm.
* GC_AT is based on age-threshold algorithm.
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index ce2ab1b85c11..78ebc306ee2b 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -33,6 +33,7 @@
#include "segment.h"
#include "xattr.h"
#include "gc.h"
+#include "iostat.h"
#define CREATE_TRACE_POINTS
#include <trace/events/f2fs.h>
@@ -56,6 +57,7 @@ const char *f2fs_fault_name[FAULT_MAX] = {
[FAULT_CHECKPOINT] = "checkpoint error",
[FAULT_DISCARD] = "discard error",
[FAULT_WRITE_IO] = "write IO error",
+ [FAULT_SLAB_ALLOC] = "slab alloc",
};
void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
@@ -155,6 +157,7 @@ enum {
Opt_atgc,
Opt_gc_merge,
Opt_nogc_merge,
+ Opt_discard_unit,
Opt_err,
};
@@ -231,6 +234,7 @@ static match_table_t f2fs_tokens = {
{Opt_atgc, "atgc"},
{Opt_gc_merge, "gc_merge"},
{Opt_nogc_merge, "nogc_merge"},
+ {Opt_discard_unit, "discard_unit=%s"},
{Opt_err, NULL},
};
@@ -657,10 +661,14 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
return -EINVAL;
break;
case Opt_discard:
+ if (!f2fs_hw_support_discard(sbi)) {
+ f2fs_warn(sbi, "device does not support discard");
+ break;
+ }
set_opt(sbi, DISCARD);
break;
case Opt_nodiscard:
- if (f2fs_sb_has_blkzoned(sbi)) {
+ if (f2fs_hw_should_discard(sbi)) {
f2fs_warn(sbi, "discard is required for zoned block devices");
return -EINVAL;
}
@@ -1173,6 +1181,25 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount)
case Opt_nogc_merge:
clear_opt(sbi, GC_MERGE);
break;
+ case Opt_discard_unit:
+ name = match_strdup(&args[0]);
+ if (!name)
+ return -ENOMEM;
+ if (!strcmp(name, "block")) {
+ F2FS_OPTION(sbi).discard_unit =
+ DISCARD_UNIT_BLOCK;
+ } else if (!strcmp(name, "segment")) {
+ F2FS_OPTION(sbi).discard_unit =
+ DISCARD_UNIT_SEGMENT;
+ } else if (!strcmp(name, "section")) {
+ F2FS_OPTION(sbi).discard_unit =
+ DISCARD_UNIT_SECTION;
+ } else {
+ kfree(name);
+ return -EINVAL;
+ }
+ kfree(name);
+ break;
default:
f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
p);
@@ -1211,6 +1238,14 @@ default_check:
return -EINVAL;
}
#endif
+ if (f2fs_sb_has_blkzoned(sbi)) {
+ if (F2FS_OPTION(sbi).discard_unit !=
+ DISCARD_UNIT_SECTION) {
+ f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
+ F2FS_OPTION(sbi).discard_unit =
+ DISCARD_UNIT_SECTION;
+ }
+ }
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (f2fs_test_compress_extension(sbi)) {
@@ -1271,7 +1306,8 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb)
{
struct f2fs_inode_info *fi;
- fi = kmem_cache_alloc(f2fs_inode_cachep, GFP_F2FS_ZERO);
+ fi = f2fs_kmem_cache_alloc(f2fs_inode_cachep,
+ GFP_F2FS_ZERO, false, F2FS_SB(sb));
if (!fi)
return NULL;
@@ -1541,6 +1577,7 @@ static void f2fs_put_super(struct super_block *sb)
#endif
fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
destroy_percpu_info(sbi);
+ f2fs_destroy_iostat(sbi);
for (i = 0; i < NR_PAGE_TYPE; i++)
kvfree(sbi->write_io[i]);
#ifdef CONFIG_UNICODE
@@ -1924,6 +1961,14 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
if (test_opt(sbi, ATGC))
seq_puts(seq, ",atgc");
+
+ if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
+ seq_printf(seq, ",discard_unit=%s", "block");
+ else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
+ seq_printf(seq, ",discard_unit=%s", "segment");
+ else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
+ seq_printf(seq, ",discard_unit=%s", "section");
+
return 0;
}
@@ -1959,11 +2004,15 @@ static void default_options(struct f2fs_sb_info *sbi)
F2FS_OPTION(sbi).unusable_cap = 0;
sbi->sb->s_flags |= SB_LAZYTIME;
set_opt(sbi, FLUSH_MERGE);
- set_opt(sbi, DISCARD);
- if (f2fs_sb_has_blkzoned(sbi))
+ if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
+ set_opt(sbi, DISCARD);
+ if (f2fs_sb_has_blkzoned(sbi)) {
F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
- else
+ F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
+ } else {
F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
+ F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
+ }
#ifdef CONFIG_F2FS_FS_XATTR
set_opt(sbi, XATTR_USER);
@@ -2038,8 +2087,17 @@ restore_flag:
static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
{
+ int retry = DEFAULT_RETRY_IO_COUNT;
+
/* we should flush all the data to keep data consistency */
- sync_inodes_sb(sbi->sb);
+ do {
+ sync_inodes_sb(sbi->sb);
+ cond_resched();
+ congestion_wait(BLK_RW_ASYNC, DEFAULT_IO_TIMEOUT);
+ } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
+
+ if (unlikely(retry < 0))
+ f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
down_write(&sbi->gc_lock);
f2fs_dirty_to_prefree(sbi);
@@ -2060,12 +2118,15 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
bool need_restart_gc = false, need_stop_gc = false;
bool need_restart_ckpt = false, need_stop_ckpt = false;
bool need_restart_flush = false, need_stop_flush = false;
+ bool need_restart_discard = false, need_stop_discard = false;
bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE);
- bool disable_checkpoint = test_opt(sbi, DISABLE_CHECKPOINT);
+ bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
bool no_io_align = !F2FS_IO_ALIGNED(sbi);
bool no_atgc = !test_opt(sbi, ATGC);
+ bool no_discard = !test_opt(sbi, DISCARD);
bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
- bool checkpoint_changed;
+ bool block_unit_discard = f2fs_block_unit_discard(sbi);
+ struct discard_cmd_control *dcc;
#ifdef CONFIG_QUOTA
int i, j;
#endif
@@ -2110,8 +2171,6 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
err = parse_options(sb, data, true);
if (err)
goto restore_opts;
- checkpoint_changed =
- disable_checkpoint != test_opt(sbi, DISABLE_CHECKPOINT);
/*
* Previous and new state of filesystem is RO,
@@ -2168,6 +2227,12 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
goto restore_opts;
}
+ if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
+ err = -EINVAL;
+ f2fs_warn(sbi, "switch discard_unit option is not allowed");
+ goto restore_opts;
+ }
+
if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
err = -EINVAL;
f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
@@ -2233,11 +2298,26 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
need_stop_flush = true;
}
- if (checkpoint_changed) {
+ if (no_discard == !!test_opt(sbi, DISCARD)) {
+ if (test_opt(sbi, DISCARD)) {
+ err = f2fs_start_discard_thread(sbi);
+ if (err)
+ goto restore_flush;
+ need_stop_discard = true;
+ } else {
+ dcc = SM_I(sbi)->dcc_info;
+ f2fs_stop_discard_thread(sbi);
+ if (atomic_read(&dcc->discard_cmd_cnt))
+ f2fs_issue_discard_timeout(sbi);
+ need_restart_discard = true;
+ }
+ }
+
+ if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
if (test_opt(sbi, DISABLE_CHECKPOINT)) {
err = f2fs_disable_checkpoint(sbi);
if (err)
- goto restore_flush;
+ goto restore_discard;
} else {
f2fs_enable_checkpoint(sbi);
}
@@ -2257,6 +2337,13 @@ skip:
adjust_unusable_cap_perc(sbi);
*flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
return 0;
+restore_discard:
+ if (need_restart_discard) {
+ if (f2fs_start_discard_thread(sbi))
+ f2fs_warn(sbi, "discard has been stopped");
+ } else if (need_stop_discard) {
+ f2fs_stop_discard_thread(sbi);
+ }
restore_flush:
if (need_restart_flush) {
if (f2fs_create_flush_cmd_control(sbi))
@@ -2517,6 +2604,33 @@ static int f2fs_enable_quotas(struct super_block *sb)
return 0;
}
+static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
+{
+ struct quota_info *dqopt = sb_dqopt(sbi->sb);
+ struct address_space *mapping = dqopt->files[type]->i_mapping;
+ int ret = 0;
+
+ ret = dquot_writeback_dquots(sbi->sb, type);
+ if (ret)
+ goto out;
+
+ ret = filemap_fdatawrite(mapping);
+ if (ret)
+ goto out;
+
+ /* if we are using journalled quota */
+ if (is_journalled_quota(sbi))
+ goto out;
+
+ ret = filemap_fdatawait(mapping);
+
+ truncate_inode_pages(&dqopt->files[type]->i_data, 0);
+out:
+ if (ret)
+ set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
+ return ret;
+}
+
int f2fs_quota_sync(struct super_block *sb, int type)
{
struct f2fs_sb_info *sbi = F2FS_SB(sb);
@@ -2525,56 +2639,41 @@ int f2fs_quota_sync(struct super_block *sb, int type)
int ret;
/*
- * do_quotactl
- * f2fs_quota_sync
- * down_read(quota_sem)
- * dquot_writeback_dquots()
- * f2fs_dquot_commit
- * block_operation
- * down_read(quota_sem)
- */
- f2fs_lock_op(sbi);
-
- down_read(&sbi->quota_sem);
- ret = dquot_writeback_dquots(sb, type);
- if (ret)
- goto out;
-
- /*
* Now when everything is written we can discard the pagecache so
* that userspace sees the changes.
*/
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- struct address_space *mapping;
if (type != -1 && cnt != type)
continue;
- if (!sb_has_quota_active(sb, cnt))
- continue;
- mapping = dqopt->files[cnt]->i_mapping;
+ if (!sb_has_quota_active(sb, type))
+ return 0;
- ret = filemap_fdatawrite(mapping);
- if (ret)
- goto out;
+ inode_lock(dqopt->files[cnt]);
- /* if we are using journalled quota */
- if (is_journalled_quota(sbi))
- continue;
+ /*
+ * do_quotactl
+ * f2fs_quota_sync
+ * down_read(quota_sem)
+ * dquot_writeback_dquots()
+ * f2fs_dquot_commit
+ * block_operation
+ * down_read(quota_sem)
+ */
+ f2fs_lock_op(sbi);
+ down_read(&sbi->quota_sem);
- ret = filemap_fdatawait(mapping);
- if (ret)
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
+ ret = f2fs_quota_sync_file(sbi, cnt);
+
+ up_read(&sbi->quota_sem);
+ f2fs_unlock_op(sbi);
- inode_lock(dqopt->files[cnt]);
- truncate_inode_pages(&dqopt->files[cnt]->i_data, 0);
inode_unlock(dqopt->files[cnt]);
+
+ if (ret)
+ break;
}
-out:
- if (ret)
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
- up_read(&sbi->quota_sem);
- f2fs_unlock_op(sbi);
return ret;
}
@@ -3207,11 +3306,13 @@ static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
return -EFSCORRUPTED;
}
- if (le32_to_cpu(raw_super->cp_payload) >
- (blocks_per_seg - F2FS_CP_PACKS)) {
- f2fs_info(sbi, "Insane cp_payload (%u > %u)",
+ if (le32_to_cpu(raw_super->cp_payload) >=
+ (blocks_per_seg - F2FS_CP_PACKS -
+ NR_CURSEG_PERSIST_TYPE)) {
+ f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
le32_to_cpu(raw_super->cp_payload),
- blocks_per_seg - F2FS_CP_PACKS);
+ blocks_per_seg - F2FS_CP_PACKS -
+ NR_CURSEG_PERSIST_TYPE);
return -EFSCORRUPTED;
}
@@ -3247,6 +3348,7 @@ int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
unsigned int cp_pack_start_sum, cp_payload;
block_t user_block_count, valid_user_blocks;
block_t avail_node_count, valid_node_count;
+ unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
int i, j;
total = le32_to_cpu(raw_super->segment_count);
@@ -3377,6 +3479,17 @@ skip_cross:
return 1;
}
+ nat_blocks = nat_segs << log_blocks_per_seg;
+ nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
+ nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
+ if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
+ (cp_payload + F2FS_CP_PACKS +
+ NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
+ f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
+ cp_payload, nat_bits_blocks);
+ return -EFSCORRUPTED;
+ }
+
if (unlikely(f2fs_cp_error(sbi))) {
f2fs_err(sbi, "A bug case: need to run fsck");
return 1;
@@ -3409,6 +3522,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
sbi->migration_granularity = sbi->segs_per_sec;
+ sbi->seq_file_ra_mul = MIN_RA_MUL;
sbi->dir_level = DEF_DIR_LEVEL;
sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
@@ -3768,7 +3882,8 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
/* adjust parameters according to the volume size */
if (sm_i->main_segments <= SMALL_VOLUME_SEGMENTS) {
F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
- sm_i->dcc_info->discard_granularity = 1;
+ if (f2fs_block_unit_discard(sbi))
+ sm_i->dcc_info->discard_granularity = 1;
sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
}
@@ -3889,11 +4004,6 @@ try_onemore:
set_sbi_flag(sbi, SBI_POR_DOING);
spin_lock_init(&sbi->stat_lock);
- /* init iostat info */
- spin_lock_init(&sbi->iostat_lock);
- sbi->iostat_enable = false;
- sbi->iostat_period_ms = DEFAULT_IOSTAT_PERIOD_MS;
-
for (i = 0; i < NR_PAGE_TYPE; i++) {
int n = (i == META) ? 1 : NR_TEMP_TYPE;
int j;
@@ -3924,10 +4034,14 @@ try_onemore:
init_waitqueue_head(&sbi->cp_wait);
init_sb_info(sbi);
- err = init_percpu_info(sbi);
+ err = f2fs_init_iostat(sbi);
if (err)
goto free_bio_info;
+ err = init_percpu_info(sbi);
+ if (err)
+ goto free_iostat;
+
if (F2FS_IO_ALIGNED(sbi)) {
sbi->write_io_dummy =
mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
@@ -4259,6 +4373,8 @@ free_io_dummy:
mempool_destroy(sbi->write_io_dummy);
free_percpu:
destroy_percpu_info(sbi);
+free_iostat:
+ f2fs_destroy_iostat(sbi);
free_bio_info:
for (i = 0; i < NR_PAGE_TYPE; i++)
kvfree(sbi->write_io[i]);
@@ -4401,9 +4517,12 @@ static int __init init_f2fs_fs(void)
err = f2fs_init_post_read_processing();
if (err)
goto free_root_stats;
- err = f2fs_init_bio_entry_cache();
+ err = f2fs_init_iostat_processing();
if (err)
goto free_post_read;
+ err = f2fs_init_bio_entry_cache();
+ if (err)
+ goto free_iostat;
err = f2fs_init_bioset();
if (err)
goto free_bio_enrty_cache;
@@ -4425,6 +4544,8 @@ free_bioset:
f2fs_destroy_bioset();
free_bio_enrty_cache:
f2fs_destroy_bio_entry_cache();
+free_iostat:
+ f2fs_destroy_iostat_processing();
free_post_read:
f2fs_destroy_post_read_processing();
free_root_stats:
@@ -4459,6 +4580,7 @@ static void __exit exit_f2fs_fs(void)
f2fs_destroy_compress_mempool();
f2fs_destroy_bioset();
f2fs_destroy_bio_entry_cache();
+ f2fs_destroy_iostat_processing();
f2fs_destroy_post_read_processing();
f2fs_destroy_root_stats();
unregister_filesystem(&f2fs_fs_type);
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index daad532a4e2b..a32fe31c33b8 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -17,6 +17,7 @@
#include "f2fs.h"
#include "segment.h"
#include "gc.h"
+#include "iostat.h"
#include <trace/events/f2fs.h>
static struct proc_dir_entry *f2fs_proc_root;
@@ -307,6 +308,14 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
#endif
+ if (!strcmp(a->attr.name, "gc_segment_mode"))
+ return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode);
+
+ if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
+ return sysfs_emit(buf, "%u\n",
+ sbi->gc_reclaimed_segs[sbi->gc_segment_mode]);
+ }
+
ui = (unsigned int *)(ptr + a->offset);
return sprintf(buf, "%u\n", *ui);
@@ -343,7 +352,7 @@ static ssize_t __sbi_store(struct f2fs_attr *a,
set = false;
}
- if (strlen(name) >= F2FS_EXTENSION_LEN)
+ if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)
return -EINVAL;
down_write(&sbi->sb_lock);
@@ -420,6 +429,8 @@ out:
if (!strcmp(a->attr.name, "discard_granularity")) {
if (t == 0 || t > MAX_PLIST_NUM)
return -EINVAL;
+ if (!f2fs_block_unit_discard(sbi))
+ return -EINVAL;
if (t == *ui)
return count;
*ui = t;
@@ -467,6 +478,7 @@ out:
return count;
}
+#ifdef CONFIG_F2FS_IOSTAT
if (!strcmp(a->attr.name, "iostat_enable")) {
sbi->iostat_enable = !!t;
if (!sbi->iostat_enable)
@@ -482,6 +494,7 @@ out:
spin_unlock(&sbi->iostat_lock);
return count;
}
+#endif
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (!strcmp(a->attr.name, "compr_written_block") ||
@@ -515,6 +528,29 @@ out:
return count;
}
+ if (!strcmp(a->attr.name, "gc_segment_mode")) {
+ if (t < MAX_GC_MODE)
+ sbi->gc_segment_mode = t;
+ else
+ return -EINVAL;
+ return count;
+ }
+
+ if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
+ if (t != 0)
+ return -EINVAL;
+ sbi->gc_reclaimed_segs[sbi->gc_segment_mode] = 0;
+ return count;
+ }
+
+ if (!strcmp(a->attr.name, "seq_file_ra_mul")) {
+ if (t >= MIN_RA_MUL && t <= MAX_RA_MUL)
+ sbi->seq_file_ra_mul = t;
+ else
+ return -EINVAL;
+ return count;
+ }
+
*ui = (unsigned int)t;
return count;
@@ -667,8 +703,10 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
+#ifdef CONFIG_F2FS_IOSTAT
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
+#endif
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_io_bytes, max_io_bytes);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
@@ -740,6 +778,10 @@ F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_count, max_candidate_cou
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_weight, age_weight);
F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, seq_file_ra_mul, seq_file_ra_mul);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs);
+
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
ATTR_LIST(gc_urgent_sleep_time),
@@ -770,8 +812,10 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(discard_idle_interval),
ATTR_LIST(gc_idle_interval),
ATTR_LIST(umount_discard_timeout),
+#ifdef CONFIG_F2FS_IOSTAT
ATTR_LIST(iostat_enable),
ATTR_LIST(iostat_period_ms),
+#endif
ATTR_LIST(readdir_ra),
ATTR_LIST(max_io_bytes),
ATTR_LIST(gc_pin_file_thresh),
@@ -812,6 +856,9 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(atgc_candidate_count),
ATTR_LIST(atgc_age_weight),
ATTR_LIST(atgc_age_threshold),
+ ATTR_LIST(seq_file_ra_mul),
+ ATTR_LIST(gc_segment_mode),
+ ATTR_LIST(gc_reclaimed_segments),
NULL,
};
ATTRIBUTE_GROUPS(f2fs);
@@ -1036,101 +1083,6 @@ static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
return 0;
}
-void f2fs_record_iostat(struct f2fs_sb_info *sbi)
-{
- unsigned long long iostat_diff[NR_IO_TYPE];
- int i;
-
- if (time_is_after_jiffies(sbi->iostat_next_period))
- return;
-
- /* Need double check under the lock */
- spin_lock(&sbi->iostat_lock);
- if (time_is_after_jiffies(sbi->iostat_next_period)) {
- spin_unlock(&sbi->iostat_lock);
- return;
- }
- sbi->iostat_next_period = jiffies +
- msecs_to_jiffies(sbi->iostat_period_ms);
-
- for (i = 0; i < NR_IO_TYPE; i++) {
- iostat_diff[i] = sbi->rw_iostat[i] -
- sbi->prev_rw_iostat[i];
- sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
- }
- spin_unlock(&sbi->iostat_lock);
-
- trace_f2fs_iostat(sbi, iostat_diff);
-}
-
-static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
- void *offset)
-{
- struct super_block *sb = seq->private;
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- time64_t now = ktime_get_real_seconds();
-
- if (!sbi->iostat_enable)
- return 0;
-
- seq_printf(seq, "time: %-16llu\n", now);
-
- /* print app write IOs */
- seq_puts(seq, "[WRITE]\n");
- seq_printf(seq, "app buffered: %-16llu\n",
- sbi->rw_iostat[APP_BUFFERED_IO]);
- seq_printf(seq, "app direct: %-16llu\n",
- sbi->rw_iostat[APP_DIRECT_IO]);
- seq_printf(seq, "app mapped: %-16llu\n",
- sbi->rw_iostat[APP_MAPPED_IO]);
-
- /* print fs write IOs */
- seq_printf(seq, "fs data: %-16llu\n",
- sbi->rw_iostat[FS_DATA_IO]);
- seq_printf(seq, "fs node: %-16llu\n",
- sbi->rw_iostat[FS_NODE_IO]);
- seq_printf(seq, "fs meta: %-16llu\n",
- sbi->rw_iostat[FS_META_IO]);
- seq_printf(seq, "fs gc data: %-16llu\n",
- sbi->rw_iostat[FS_GC_DATA_IO]);
- seq_printf(seq, "fs gc node: %-16llu\n",
- sbi->rw_iostat[FS_GC_NODE_IO]);
- seq_printf(seq, "fs cp data: %-16llu\n",
- sbi->rw_iostat[FS_CP_DATA_IO]);
- seq_printf(seq, "fs cp node: %-16llu\n",
- sbi->rw_iostat[FS_CP_NODE_IO]);
- seq_printf(seq, "fs cp meta: %-16llu\n",
- sbi->rw_iostat[FS_CP_META_IO]);
-
- /* print app read IOs */
- seq_puts(seq, "[READ]\n");
- seq_printf(seq, "app buffered: %-16llu\n",
- sbi->rw_iostat[APP_BUFFERED_READ_IO]);
- seq_printf(seq, "app direct: %-16llu\n",
- sbi->rw_iostat[APP_DIRECT_READ_IO]);
- seq_printf(seq, "app mapped: %-16llu\n",
- sbi->rw_iostat[APP_MAPPED_READ_IO]);
-
- /* print fs read IOs */
- seq_printf(seq, "fs data: %-16llu\n",
- sbi->rw_iostat[FS_DATA_READ_IO]);
- seq_printf(seq, "fs gc data: %-16llu\n",
- sbi->rw_iostat[FS_GDATA_READ_IO]);
- seq_printf(seq, "fs compr_data: %-16llu\n",
- sbi->rw_iostat[FS_CDATA_READ_IO]);
- seq_printf(seq, "fs node: %-16llu\n",
- sbi->rw_iostat[FS_NODE_READ_IO]);
- seq_printf(seq, "fs meta: %-16llu\n",
- sbi->rw_iostat[FS_META_READ_IO]);
-
- /* print other IOs */
- seq_puts(seq, "[OTHER]\n");
- seq_printf(seq, "fs discard: %-16llu\n",
- sbi->rw_iostat[FS_DISCARD]);
-
- return 0;
-}
-
static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
void *offset)
{
@@ -1213,13 +1165,15 @@ int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
if (sbi->s_proc) {
- proc_create_single_data("segment_info", S_IRUGO, sbi->s_proc,
+ proc_create_single_data("segment_info", 0444, sbi->s_proc,
segment_info_seq_show, sb);
- proc_create_single_data("segment_bits", S_IRUGO, sbi->s_proc,
+ proc_create_single_data("segment_bits", 0444, sbi->s_proc,
segment_bits_seq_show, sb);
- proc_create_single_data("iostat_info", S_IRUGO, sbi->s_proc,
+#ifdef CONFIG_F2FS_IOSTAT
+ proc_create_single_data("iostat_info", 0444, sbi->s_proc,
iostat_info_seq_show, sb);
- proc_create_single_data("victim_bits", S_IRUGO, sbi->s_proc,
+#endif
+ proc_create_single_data("victim_bits", 0444, sbi->s_proc,
victim_bits_seq_show, sb);
}
return 0;
@@ -1238,7 +1192,9 @@ put_sb_kobj:
void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
{
if (sbi->s_proc) {
+#ifdef CONFIG_F2FS_IOSTAT
remove_proc_entry("iostat_info", sbi->s_proc);
+#endif
remove_proc_entry("segment_info", sbi->s_proc);
remove_proc_entry("segment_bits", sbi->s_proc);
remove_proc_entry("victim_bits", sbi->s_proc);
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index c8f34decbf8e..1d2d29dcd41c 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -27,7 +27,8 @@ static void *xattr_alloc(struct f2fs_sb_info *sbi, int size, bool *is_inline)
{
if (likely(size == sbi->inline_xattr_slab_size)) {
*is_inline = true;
- return kmem_cache_zalloc(sbi->inline_xattr_slab, GFP_NOFS);
+ return f2fs_kmem_cache_alloc(sbi->inline_xattr_slab,
+ GFP_F2FS_ZERO, false, sbi);
}
*is_inline = false;
return f2fs_kzalloc(sbi, size, GFP_NOFS);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.