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-rw-r--r--fs/btrfs/extent-tree.c27
-rw-r--r--fs/btrfs/scrub.c2
-rw-r--r--fs/ext4/balloc.c4
-rw-r--r--fs/ext4/extents_status.c22
-rw-r--r--fs/ext4/inode.c12
-rw-r--r--fs/ext4/mballoc.c11
-rw-r--r--fs/ext4/page-io.c35
-rw-r--r--fs/ext4/super.c14
-rw-r--r--fs/lockd/svclock.c4
-rw-r--r--fs/nfsd/nfs4proc.c2
-rw-r--r--fs/nfsd/nfsd.h1
-rw-r--r--fs/nfsd/nfssvc.c13
-rw-r--r--fs/proc/vmcore.c2
-rw-r--r--fs/sysfs/group.c70
14 files changed, 134 insertions, 85 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0236de711989..1204c8ef6f32 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -7466,6 +7466,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
int err = 0;
int ret;
int level;
+ bool root_dropped = false;
path = btrfs_alloc_path();
if (!path) {
@@ -7523,6 +7524,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
while (1) {
btrfs_tree_lock(path->nodes[level]);
btrfs_set_lock_blocking(path->nodes[level]);
+ path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING;
ret = btrfs_lookup_extent_info(trans, root,
path->nodes[level]->start,
@@ -7538,6 +7540,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
break;
btrfs_tree_unlock(path->nodes[level]);
+ path->locks[level] = 0;
WARN_ON(wc->refs[level] != 1);
level--;
}
@@ -7552,11 +7555,6 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(root);
while (1) {
- if (!for_reloc && btrfs_need_cleaner_sleep(root)) {
- pr_debug("btrfs: drop snapshot early exit\n");
- err = -EAGAIN;
- goto out_end_trans;
- }
ret = walk_down_tree(trans, root, path, wc);
if (ret < 0) {
@@ -7584,7 +7582,8 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
}
BUG_ON(wc->level == 0);
- if (btrfs_should_end_transaction(trans, tree_root)) {
+ if (btrfs_should_end_transaction(trans, tree_root) ||
+ (!for_reloc && btrfs_need_cleaner_sleep(root))) {
ret = btrfs_update_root(trans, tree_root,
&root->root_key,
root_item);
@@ -7595,6 +7594,12 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
}
btrfs_end_transaction_throttle(trans, tree_root);
+ if (!for_reloc && btrfs_need_cleaner_sleep(root)) {
+ pr_debug("btrfs: drop snapshot early exit\n");
+ err = -EAGAIN;
+ goto out_free;
+ }
+
trans = btrfs_start_transaction(tree_root, 0);
if (IS_ERR(trans)) {
err = PTR_ERR(trans);
@@ -7639,12 +7644,22 @@ int btrfs_drop_snapshot(struct btrfs_root *root,
free_extent_buffer(root->commit_root);
btrfs_put_fs_root(root);
}
+ root_dropped = true;
out_end_trans:
btrfs_end_transaction_throttle(trans, tree_root);
out_free:
kfree(wc);
btrfs_free_path(path);
out:
+ /*
+ * So if we need to stop dropping the snapshot for whatever reason we
+ * need to make sure to add it back to the dead root list so that we
+ * keep trying to do the work later. This also cleans up roots if we
+ * don't have it in the radix (like when we recover after a power fail
+ * or unmount) so we don't leak memory.
+ */
+ if (root_dropped == false)
+ btrfs_add_dead_root(root);
if (err)
btrfs_std_error(root->fs_info, err);
return err;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 4ba2a69a60ad..64a157becbe5 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2495,7 +2495,7 @@ again:
ret = scrub_extent(sctx, extent_logical, extent_len,
extent_physical, extent_dev, flags,
generation, extent_mirror_num,
- extent_physical);
+ extent_logical - logical + physical);
if (ret)
goto out;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 58339393fa6e..ddd715e42a5c 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -38,8 +38,8 @@ ext4_group_t ext4_get_group_number(struct super_block *sb,
ext4_group_t group;
if (test_opt2(sb, STD_GROUP_SIZE))
- group = (le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block) +
- block) >>
+ group = (block -
+ le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) >>
(EXT4_BLOCK_SIZE_BITS(sb) + EXT4_CLUSTER_BITS(sb) + 3);
else
ext4_get_group_no_and_offset(sb, block, &group, NULL);
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index ee018d5f397e..4b8df7fbb10a 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -439,7 +439,7 @@ static void ext4_es_insert_extent_ext_check(struct inode *inode,
*/
if (!ext4_es_is_written(es) && !ext4_es_is_unwritten(es)) {
if (in_range(es->es_lblk, ee_block, ee_len)) {
- pr_warn("ES insert assertation failed for "
+ pr_warn("ES insert assertion failed for "
"inode: %lu we can find an extent "
"at block [%d/%d/%llu/%c], but we "
"want to add an delayed/hole extent "
@@ -458,7 +458,7 @@ static void ext4_es_insert_extent_ext_check(struct inode *inode,
*/
if (es->es_lblk < ee_block ||
ext4_es_pblock(es) != ee_start + es->es_lblk - ee_block) {
- pr_warn("ES insert assertation failed for inode: %lu "
+ pr_warn("ES insert assertion failed for inode: %lu "
"ex_status [%d/%d/%llu/%c] != "
"es_status [%d/%d/%llu/%c]\n", inode->i_ino,
ee_block, ee_len, ee_start,
@@ -468,7 +468,7 @@ static void ext4_es_insert_extent_ext_check(struct inode *inode,
}
if (ee_status ^ es_status) {
- pr_warn("ES insert assertation failed for inode: %lu "
+ pr_warn("ES insert assertion failed for inode: %lu "
"ex_status [%d/%d/%llu/%c] != "
"es_status [%d/%d/%llu/%c]\n", inode->i_ino,
ee_block, ee_len, ee_start,
@@ -481,7 +481,7 @@ static void ext4_es_insert_extent_ext_check(struct inode *inode,
* that we don't want to add an written/unwritten extent.
*/
if (!ext4_es_is_delayed(es) && !ext4_es_is_hole(es)) {
- pr_warn("ES insert assertation failed for inode: %lu "
+ pr_warn("ES insert assertion failed for inode: %lu "
"can't find an extent at block %d but we want "
"to add an written/unwritten extent "
"[%d/%d/%llu/%llx]\n", inode->i_ino,
@@ -519,7 +519,7 @@ static void ext4_es_insert_extent_ind_check(struct inode *inode,
* We want to add a delayed/hole extent but this
* block has been allocated.
*/
- pr_warn("ES insert assertation failed for inode: %lu "
+ pr_warn("ES insert assertion failed for inode: %lu "
"We can find blocks but we want to add a "
"delayed/hole extent [%d/%d/%llu/%llx]\n",
inode->i_ino, es->es_lblk, es->es_len,
@@ -527,13 +527,13 @@ static void ext4_es_insert_extent_ind_check(struct inode *inode,
return;
} else if (ext4_es_is_written(es)) {
if (retval != es->es_len) {
- pr_warn("ES insert assertation failed for "
+ pr_warn("ES insert assertion failed for "
"inode: %lu retval %d != es_len %d\n",
inode->i_ino, retval, es->es_len);
return;
}
if (map.m_pblk != ext4_es_pblock(es)) {
- pr_warn("ES insert assertation failed for "
+ pr_warn("ES insert assertion failed for "
"inode: %lu m_pblk %llu != "
"es_pblk %llu\n",
inode->i_ino, map.m_pblk,
@@ -549,7 +549,7 @@ static void ext4_es_insert_extent_ind_check(struct inode *inode,
}
} else if (retval == 0) {
if (ext4_es_is_written(es)) {
- pr_warn("ES insert assertation failed for inode: %lu "
+ pr_warn("ES insert assertion failed for inode: %lu "
"We can't find the block but we want to add "
"an written extent [%d/%d/%llu/%llx]\n",
inode->i_ino, es->es_lblk, es->es_len,
@@ -632,10 +632,8 @@ out:
}
/*
- * ext4_es_insert_extent() adds a space to a extent status tree.
- *
- * ext4_es_insert_extent is called by ext4_da_write_begin and
- * ext4_es_remove_extent.
+ * ext4_es_insert_extent() adds information to an inode's extent
+ * status tree.
*
* Return 0 on success, error code on failure.
*/
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 0188e65e1f58..98b9bff92a8a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -465,7 +465,7 @@ static void ext4_map_blocks_es_recheck(handle_t *handle,
if (es_map->m_lblk != map->m_lblk ||
es_map->m_flags != map->m_flags ||
es_map->m_pblk != map->m_pblk) {
- printk("ES cache assertation failed for inode: %lu "
+ printk("ES cache assertion failed for inode: %lu "
"es_cached ex [%d/%d/%llu/%x] != "
"found ex [%d/%d/%llu/%x] retval %d flags %x\n",
inode->i_ino, es_map->m_lblk, es_map->m_len,
@@ -558,7 +558,7 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
#ifdef ES_AGGRESSIVE_TEST
if (retval != map->m_len) {
- printk("ES len assertation failed for inode: %lu "
+ printk("ES len assertion failed for inode: %lu "
"retval %d != map->m_len %d "
"in %s (lookup)\n", inode->i_ino, retval,
map->m_len, __func__);
@@ -659,7 +659,7 @@ found:
#ifdef ES_AGGRESSIVE_TEST
if (retval != map->m_len) {
- printk("ES len assertation failed for inode: %lu "
+ printk("ES len assertion failed for inode: %lu "
"retval %d != map->m_len %d "
"in %s (allocation)\n", inode->i_ino, retval,
map->m_len, __func__);
@@ -1642,7 +1642,7 @@ add_delayed:
#ifdef ES_AGGRESSIVE_TEST
if (retval != map->m_len) {
- printk("ES len assertation failed for inode: %lu "
+ printk("ES len assertion failed for inode: %lu "
"retval %d != map->m_len %d "
"in %s (lookup)\n", inode->i_ino, retval,
map->m_len, __func__);
@@ -2163,7 +2163,7 @@ static int mpage_map_and_submit_extent(handle_t *handle,
mpd->io_submit.io_end->offset =
((loff_t)map->m_lblk) << inode->i_blkbits;
- while (map->m_len) {
+ do {
err = mpage_map_one_extent(handle, mpd);
if (err < 0) {
struct super_block *sb = inode->i_sb;
@@ -2201,7 +2201,7 @@ static int mpage_map_and_submit_extent(handle_t *handle,
err = mpage_map_and_submit_buffers(mpd);
if (err < 0)
return err;
- }
+ } while (map->m_len);
/* Update on-disk size after IO is submitted */
disksize = ((loff_t)mpd->first_page) << PAGE_CACHE_SHIFT;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a9ff5e5137ca..4bbbf13bd743 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4740,11 +4740,16 @@ do_more:
* blocks being freed are metadata. these blocks shouldn't
* be used until this transaction is committed
*/
+ retry:
new_entry = kmem_cache_alloc(ext4_free_data_cachep, GFP_NOFS);
if (!new_entry) {
- ext4_mb_unload_buddy(&e4b);
- err = -ENOMEM;
- goto error_return;
+ /*
+ * We use a retry loop because
+ * ext4_free_blocks() is not allowed to fail.
+ */
+ cond_resched();
+ congestion_wait(BLK_RW_ASYNC, HZ/50);
+ goto retry;
}
new_entry->efd_start_cluster = bit;
new_entry->efd_group = block_group;
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 48786cdb5e6c..6625d210fb45 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -25,6 +25,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/mm.h>
+#include <linux/ratelimit.h>
#include "ext4_jbd2.h"
#include "xattr.h"
@@ -55,7 +56,7 @@ void ext4_exit_pageio(void)
static void buffer_io_error(struct buffer_head *bh)
{
char b[BDEVNAME_SIZE];
- printk(KERN_ERR "Buffer I/O error on device %s, logical block %llu\n",
+ printk_ratelimited(KERN_ERR "Buffer I/O error on device %s, logical block %llu\n",
bdevname(bh->b_bdev, b),
(unsigned long long)bh->b_blocknr);
}
@@ -308,6 +309,7 @@ ext4_io_end_t *ext4_get_io_end(ext4_io_end_t *io_end)
return io_end;
}
+/* BIO completion function for page writeback */
static void ext4_end_bio(struct bio *bio, int error)
{
ext4_io_end_t *io_end = bio->bi_private;
@@ -318,18 +320,6 @@ static void ext4_end_bio(struct bio *bio, int error)
if (test_bit(BIO_UPTODATE, &bio->bi_flags))
error = 0;
- if (io_end->flag & EXT4_IO_END_UNWRITTEN) {
- /*
- * Link bio into list hanging from io_end. We have to do it
- * atomically as bio completions can be racing against each
- * other.
- */
- bio->bi_private = xchg(&io_end->bio, bio);
- } else {
- ext4_finish_bio(bio);
- bio_put(bio);
- }
-
if (error) {
struct inode *inode = io_end->inode;
@@ -341,7 +331,24 @@ static void ext4_end_bio(struct bio *bio, int error)
(unsigned long long)
bi_sector >> (inode->i_blkbits - 9));
}
- ext4_put_io_end_defer(io_end);
+
+ if (io_end->flag & EXT4_IO_END_UNWRITTEN) {
+ /*
+ * Link bio into list hanging from io_end. We have to do it
+ * atomically as bio completions can be racing against each
+ * other.
+ */
+ bio->bi_private = xchg(&io_end->bio, bio);
+ ext4_put_io_end_defer(io_end);
+ } else {
+ /*
+ * Drop io_end reference early. Inode can get freed once
+ * we finish the bio.
+ */
+ ext4_put_io_end_defer(io_end);
+ ext4_finish_bio(bio);
+ bio_put(bio);
+ }
}
void ext4_io_submit(struct ext4_io_submit *io)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 85b3dd60169b..bca26f34edf4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1702,12 +1702,6 @@ static inline void ext4_show_quota_options(struct seq_file *seq,
if (sbi->s_qf_names[GRPQUOTA])
seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
-
- if (test_opt(sb, USRQUOTA))
- seq_puts(seq, ",usrquota");
-
- if (test_opt(sb, GRPQUOTA))
- seq_puts(seq, ",grpquota");
#endif
}
@@ -3624,10 +3618,6 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb));
sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb));
- /* Do we have standard group size of blocksize * 8 blocks ? */
- if (sbi->s_blocks_per_group == blocksize << 3)
- set_opt2(sb, STD_GROUP_SIZE);
-
for (i = 0; i < 4; i++)
sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
sbi->s_def_hash_version = es->s_def_hash_version;
@@ -3697,6 +3687,10 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
goto failed_mount;
}
+ /* Do we have standard group size of clustersize * 8 blocks ? */
+ if (sbi->s_blocks_per_group == clustersize << 3)
+ set_opt2(sb, STD_GROUP_SIZE);
+
/*
* Test whether we have more sectors than will fit in sector_t,
* and whether the max offset is addressable by the page cache.
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 067778b0ccc9..e066a3902973 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -951,6 +951,7 @@ nlmsvc_retry_blocked(void)
unsigned long timeout = MAX_SCHEDULE_TIMEOUT;
struct nlm_block *block;
+ spin_lock(&nlm_blocked_lock);
while (!list_empty(&nlm_blocked) && !kthread_should_stop()) {
block = list_entry(nlm_blocked.next, struct nlm_block, b_list);
@@ -960,6 +961,7 @@ nlmsvc_retry_blocked(void)
timeout = block->b_when - jiffies;
break;
}
+ spin_unlock(&nlm_blocked_lock);
dprintk("nlmsvc_retry_blocked(%p, when=%ld)\n",
block, block->b_when);
@@ -969,7 +971,9 @@ nlmsvc_retry_blocked(void)
retry_deferred_block(block);
} else
nlmsvc_grant_blocked(block);
+ spin_lock(&nlm_blocked_lock);
}
+ spin_unlock(&nlm_blocked_lock);
return timeout;
}
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index a7cee864e7b2..0d4c410e4589 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1293,7 +1293,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
* According to RFC3010, this takes precedence over all other errors.
*/
status = nfserr_minor_vers_mismatch;
- if (args->minorversion > nfsd_supported_minorversion)
+ if (nfsd_minorversion(args->minorversion, NFSD_TEST) <= 0)
goto out;
status = nfs41_check_op_ordering(args);
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 2bbd94e51efc..30f34ab02137 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -53,7 +53,6 @@ struct readdir_cd {
extern struct svc_program nfsd_program;
extern struct svc_version nfsd_version2, nfsd_version3,
nfsd_version4;
-extern u32 nfsd_supported_minorversion;
extern struct mutex nfsd_mutex;
extern spinlock_t nfsd_drc_lock;
extern unsigned long nfsd_drc_max_mem;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 6b9f48ca4c25..760c85a6f534 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -116,7 +116,10 @@ struct svc_program nfsd_program = {
};
-u32 nfsd_supported_minorversion = 1;
+static bool nfsd_supported_minorversions[NFSD_SUPPORTED_MINOR_VERSION + 1] = {
+ [0] = 1,
+ [1] = 1,
+};
int nfsd_vers(int vers, enum vers_op change)
{
@@ -151,15 +154,13 @@ int nfsd_minorversion(u32 minorversion, enum vers_op change)
return -1;
switch(change) {
case NFSD_SET:
- nfsd_supported_minorversion = minorversion;
+ nfsd_supported_minorversions[minorversion] = true;
break;
case NFSD_CLEAR:
- if (minorversion == 0)
- return -1;
- nfsd_supported_minorversion = minorversion - 1;
+ nfsd_supported_minorversions[minorversion] = false;
break;
case NFSD_TEST:
- return minorversion <= nfsd_supported_minorversion;
+ return nfsd_supported_minorversions[minorversion];
case NFSD_AVAIL:
return minorversion <= NFSD_SUPPORTED_MINOR_VERSION;
}
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 28503172f2e4..a1a16eb97c7b 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -223,7 +223,7 @@ static inline char *alloc_elfnotes_buf(size_t notes_sz)
* regions in the 1st kernel pointed to by PT_LOAD entries) into
* virtually contiguous user-space in ELF layout.
*/
-#ifdef CONFIG_MMU
+#if defined(CONFIG_MMU) && !defined(CONFIG_S390)
static int mmap_vmcore(struct file *file, struct vm_area_struct *vma)
{
size_t size = vma->vm_end - vma->vm_start;
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index aec3d5c98c94..09a1a25cd145 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -20,38 +20,64 @@ static void remove_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
const struct attribute_group *grp)
{
struct attribute *const* attr;
- int i;
+ struct bin_attribute *const* bin_attr;
- for (i = 0, attr = grp->attrs; *attr; i++, attr++)
- sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
+ if (grp->attrs)
+ for (attr = grp->attrs; *attr; attr++)
+ sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
+ if (grp->bin_attrs)
+ for (bin_attr = grp->bin_attrs; *bin_attr; bin_attr++)
+ sysfs_remove_bin_file(kobj, *bin_attr);
}
static int create_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
const struct attribute_group *grp, int update)
{
struct attribute *const* attr;
+ struct bin_attribute *const* bin_attr;
int error = 0, i;
- for (i = 0, attr = grp->attrs; *attr && !error; i++, attr++) {
- umode_t mode = 0;
+ if (grp->attrs) {
+ for (i = 0, attr = grp->attrs; *attr && !error; i++, attr++) {
+ umode_t mode = 0;
+
+ /*
+ * In update mode, we're changing the permissions or
+ * visibility. Do this by first removing then
+ * re-adding (if required) the file.
+ */
+ if (update)
+ sysfs_hash_and_remove(dir_sd, NULL,
+ (*attr)->name);
+ if (grp->is_visible) {
+ mode = grp->is_visible(kobj, *attr, i);
+ if (!mode)
+ continue;
+ }
+ error = sysfs_add_file_mode(dir_sd, *attr,
+ SYSFS_KOBJ_ATTR,
+ (*attr)->mode | mode);
+ if (unlikely(error))
+ break;
+ }
+ if (error) {
+ remove_files(dir_sd, kobj, grp);
+ goto exit;
+ }
+ }
- /* in update mode, we're changing the permissions or
- * visibility. Do this by first removing then
- * re-adding (if required) the file */
- if (update)
- sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
- if (grp->is_visible) {
- mode = grp->is_visible(kobj, *attr, i);
- if (!mode)
- continue;
+ if (grp->bin_attrs) {
+ for (bin_attr = grp->bin_attrs; *bin_attr; bin_attr++) {
+ if (update)
+ sysfs_remove_bin_file(kobj, *bin_attr);
+ error = sysfs_create_bin_file(kobj, *bin_attr);
+ if (error)
+ break;
}
- error = sysfs_add_file_mode(dir_sd, *attr, SYSFS_KOBJ_ATTR,
- (*attr)->mode | mode);
- if (unlikely(error))
- break;
+ if (error)
+ remove_files(dir_sd, kobj, grp);
}
- if (error)
- remove_files(dir_sd, kobj, grp);
+exit:
return error;
}
@@ -67,8 +93,8 @@ static int internal_create_group(struct kobject *kobj, int update,
/* Updates may happen before the object has been instantiated */
if (unlikely(update && !kobj->sd))
return -EINVAL;
- if (!grp->attrs) {
- WARN(1, "sysfs: attrs not set by subsystem for group: %s/%s\n",
+ if (!grp->attrs && !grp->bin_attrs) {
+ WARN(1, "sysfs: (bin_)attrs not set by subsystem for group: %s/%s\n",
kobj->name, grp->name ? "" : grp->name);
return -EINVAL;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.