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Diffstat (limited to 'fs/f2fs/file.c')
-rw-r--r--fs/f2fs/file.c540
1 files changed, 378 insertions, 162 deletions
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index a197215ad52b..90d1157a09f9 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -40,8 +40,6 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
struct dnode_of_data dn;
int err;
- f2fs_balance_fs(sbi);
-
sb_start_pagefault(inode->i_sb);
f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
@@ -57,6 +55,8 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
f2fs_put_dnode(&dn);
f2fs_unlock_op(sbi);
+ f2fs_balance_fs(sbi, dn.node_changed);
+
file_update_time(vma->vm_file);
lock_page(page);
if (unlikely(page->mapping != inode->i_mapping ||
@@ -74,11 +74,11 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
goto mapped;
/* page is wholly or partially inside EOF */
- if (((loff_t)(page->index + 1) << PAGE_CACHE_SHIFT) >
+ if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
i_size_read(inode)) {
unsigned offset;
- offset = i_size_read(inode) & ~PAGE_CACHE_MASK;
- zero_user_segment(page, offset, PAGE_CACHE_SIZE);
+ offset = i_size_read(inode) & ~PAGE_MASK;
+ zero_user_segment(page, offset, PAGE_SIZE);
}
set_page_dirty(page);
SetPageUptodate(page);
@@ -86,7 +86,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
trace_f2fs_vm_page_mkwrite(page, DATA);
mapped:
/* fill the page */
- f2fs_wait_on_page_writeback(page, DATA);
+ f2fs_wait_on_page_writeback(page, DATA, false);
/* wait for GCed encrypted page writeback */
if (f2fs_encrypted_inode(inode) && S_ISREG(inode->i_mode))
@@ -96,6 +96,7 @@ mapped:
clear_cold_data(page);
out:
sb_end_pagefault(inode->i_sb);
+ f2fs_update_time(sbi, REQ_TIME);
return block_page_mkwrite_return(err);
}
@@ -201,7 +202,7 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
trace_f2fs_sync_file_enter(inode);
/* if fdatasync is triggered, let's do in-place-update */
- if (get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
+ if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
set_inode_flag(fi, FI_NEED_IPU);
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
clear_inode_flag(fi, FI_NEED_IPU);
@@ -233,9 +234,6 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
goto out;
}
go_write:
- /* guarantee free sections for fsync */
- f2fs_balance_fs(sbi);
-
/*
* Both of fdatasync() and fsync() are able to be recovered from
* sudden-power-off.
@@ -261,8 +259,10 @@ sync_nodes:
sync_node_pages(sbi, ino, &wbc);
/* if cp_error was enabled, we should avoid infinite loop */
- if (unlikely(f2fs_cp_error(sbi)))
+ if (unlikely(f2fs_cp_error(sbi))) {
+ ret = -EIO;
goto out;
+ }
if (need_inode_block_update(sbi, ino)) {
mark_inode_dirty_sync(inode);
@@ -275,12 +275,13 @@ sync_nodes:
goto out;
/* once recovery info is written, don't need to tack this */
- remove_dirty_inode(sbi, ino, APPEND_INO);
+ remove_ino_entry(sbi, ino, APPEND_INO);
clear_inode_flag(fi, FI_APPEND_WRITE);
flush_out:
- remove_dirty_inode(sbi, ino, UPDATE_INO);
+ remove_ino_entry(sbi, ino, UPDATE_INO);
clear_inode_flag(fi, FI_UPDATE_WRITE);
ret = f2fs_issue_flush(sbi);
+ f2fs_update_time(sbi, REQ_TIME);
out:
trace_f2fs_sync_file_exit(inode, need_cp, datasync, ret);
f2fs_trace_ios(NULL, 1);
@@ -300,7 +301,7 @@ static pgoff_t __get_first_dirty_index(struct address_space *mapping,
pagevec_init(&pvec, 0);
nr_pages = pagevec_lookup_tag(&pvec, mapping, &pgofs,
PAGECACHE_TAG_DIRTY, 1);
- pgofs = nr_pages ? pvec.pages[0]->index : LONG_MAX;
+ pgofs = nr_pages ? pvec.pages[0]->index : ULONG_MAX;
pagevec_release(&pvec);
return pgofs;
}
@@ -332,7 +333,7 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
loff_t isize;
int err = 0;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
isize = i_size_read(inode);
if (offset >= isize)
@@ -345,11 +346,11 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
goto found;
}
- pgofs = (pgoff_t)(offset >> PAGE_CACHE_SHIFT);
+ pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
- for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+ for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
set_new_dnode(&dn, inode, NULL, NULL, 0);
err = get_dnode_of_data(&dn, pgofs, LOOKUP_NODE_RA);
if (err && err != -ENOENT) {
@@ -357,20 +358,19 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
} else if (err == -ENOENT) {
/* direct node does not exists */
if (whence == SEEK_DATA) {
- pgofs = PGOFS_OF_NEXT_DNODE(pgofs,
- F2FS_I(inode));
+ pgofs = get_next_page_offset(&dn, pgofs);
continue;
} else {
goto found;
}
}
- end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
/* find data/hole in dnode block */
for (; dn.ofs_in_node < end_offset;
dn.ofs_in_node++, pgofs++,
- data_ofs = (loff_t)pgofs << PAGE_CACHE_SHIFT) {
+ data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
block_t blkaddr;
blkaddr = datablock_addr(dn.node_page, dn.ofs_in_node);
@@ -387,10 +387,10 @@ static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
found:
if (whence == SEEK_HOLE && data_ofs > isize)
data_ofs = isize;
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return vfs_setpos(file, data_ofs, maxbytes);
fail:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
return -ENXIO;
}
@@ -418,19 +418,20 @@ static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
{
struct inode *inode = file_inode(file);
+ int err;
if (f2fs_encrypted_inode(inode)) {
- int err = f2fs_get_encryption_info(inode);
+ err = fscrypt_get_encryption_info(inode);
if (err)
return 0;
+ if (!f2fs_encrypted_inode(inode))
+ return -ENOKEY;
}
/* we don't need to use inline_data strictly */
- if (f2fs_has_inline_data(inode)) {
- int err = f2fs_convert_inline_inode(inode);
- if (err)
- return err;
- }
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
file_accessed(file);
vma->vm_ops = &f2fs_file_vm_ops;
@@ -440,12 +441,22 @@ static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
static int f2fs_file_open(struct inode *inode, struct file *filp)
{
int ret = generic_file_open(inode, filp);
+ struct dentry *dir;
if (!ret && f2fs_encrypted_inode(inode)) {
- ret = f2fs_get_encryption_info(inode);
+ ret = fscrypt_get_encryption_info(inode);
if (ret)
- ret = -EACCES;
+ return -EACCES;
+ if (!fscrypt_has_encryption_key(inode))
+ return -ENOKEY;
}
+ dir = dget_parent(file_dentry(filp));
+ if (f2fs_encrypted_inode(d_inode(dir)) &&
+ !fscrypt_has_permitted_context(d_inode(dir), inode)) {
+ dput(dir);
+ return -EPERM;
+ }
+ dput(dir);
return ret;
}
@@ -480,14 +491,14 @@ int truncate_data_blocks_range(struct dnode_of_data *dn, int count)
* we will invalidate all blkaddr in the whole range.
*/
fofs = start_bidx_of_node(ofs_of_node(dn->node_page),
- F2FS_I(dn->inode)) + ofs;
+ dn->inode) + ofs;
f2fs_update_extent_cache_range(dn, fofs, 0, len);
dec_valid_block_count(sbi, dn->inode, nr_free);
- set_page_dirty(dn->node_page);
sync_inode_page(dn);
}
dn->ofs_in_node = ofs;
+ f2fs_update_time(sbi, REQ_TIME);
trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
dn->ofs_in_node, nr_free);
return nr_free;
@@ -501,8 +512,8 @@ void truncate_data_blocks(struct dnode_of_data *dn)
static int truncate_partial_data_page(struct inode *inode, u64 from,
bool cache_only)
{
- unsigned offset = from & (PAGE_CACHE_SIZE - 1);
- pgoff_t index = from >> PAGE_CACHE_SHIFT;
+ unsigned offset = from & (PAGE_SIZE - 1);
+ pgoff_t index = from >> PAGE_SHIFT;
struct address_space *mapping = inode->i_mapping;
struct page *page;
@@ -521,9 +532,10 @@ static int truncate_partial_data_page(struct inode *inode, u64 from,
if (IS_ERR(page))
return 0;
truncate_out:
- f2fs_wait_on_page_writeback(page, DATA);
- zero_user(page, offset, PAGE_CACHE_SIZE - offset);
- if (!cache_only || !f2fs_encrypted_inode(inode) || !S_ISREG(inode->i_mode))
+ f2fs_wait_on_page_writeback(page, DATA, true);
+ zero_user(page, offset, PAGE_SIZE - offset);
+ if (!cache_only || !f2fs_encrypted_inode(inode) ||
+ !S_ISREG(inode->i_mode))
set_page_dirty(page);
f2fs_put_page(page, 1);
return 0;
@@ -568,7 +580,7 @@ int truncate_blocks(struct inode *inode, u64 from, bool lock)
goto out;
}
- count = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ count = ADDRS_PER_PAGE(dn.node_page, inode);
count -= dn.ofs_in_node;
f2fs_bug_on(sbi, count < 0);
@@ -604,7 +616,7 @@ int f2fs_truncate(struct inode *inode, bool lock)
trace_f2fs_truncate(inode);
/* we should check inline_data size */
- if (f2fs_has_inline_data(inode) && !f2fs_may_inline_data(inode)) {
+ if (!f2fs_may_inline_data(inode)) {
err = f2fs_convert_inline_inode(inode);
if (err)
return err;
@@ -671,7 +683,7 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
if (attr->ia_valid & ATTR_SIZE) {
if (f2fs_encrypted_inode(inode) &&
- f2fs_get_encryption_info(inode))
+ fscrypt_get_encryption_info(inode))
return -EACCES;
if (attr->ia_size <= i_size_read(inode)) {
@@ -679,13 +691,20 @@ int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
err = f2fs_truncate(inode, true);
if (err)
return err;
- f2fs_balance_fs(F2FS_I_SB(inode));
+ f2fs_balance_fs(F2FS_I_SB(inode), true);
} else {
/*
* do not trim all blocks after i_size if target size is
* larger than i_size.
*/
truncate_setsize(inode, attr->ia_size);
+
+ /* should convert inline inode here */
+ if (!f2fs_may_inline_data(inode)) {
+ err = f2fs_convert_inline_inode(inode);
+ if (err)
+ return err;
+ }
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
}
}
@@ -727,7 +746,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
if (!len)
return 0;
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
f2fs_lock_op(sbi);
page = get_new_data_page(inode, NULL, index, false);
@@ -736,7 +755,7 @@ static int fill_zero(struct inode *inode, pgoff_t index,
if (IS_ERR(page))
return PTR_ERR(page);
- f2fs_wait_on_page_writeback(page, DATA);
+ f2fs_wait_on_page_writeback(page, DATA, true);
zero_user(page, start, len);
set_page_dirty(page);
f2fs_put_page(page, 1);
@@ -761,7 +780,7 @@ int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
return err;
}
- end_offset = ADDRS_PER_PAGE(dn.node_page, F2FS_I(inode));
+ end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
@@ -778,19 +797,17 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
{
pgoff_t pg_start, pg_end;
loff_t off_start, off_end;
- int ret = 0;
+ int ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+ pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ off_start = offset & (PAGE_SIZE - 1);
+ off_end = (offset + len) & (PAGE_SIZE - 1);
if (pg_start == pg_end) {
ret = fill_zero(inode, pg_start, off_start,
@@ -800,7 +817,7 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
} else {
if (off_start) {
ret = fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
+ PAGE_SIZE - off_start);
if (ret)
return ret;
}
@@ -815,10 +832,10 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
loff_t blk_start, blk_end;
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
- blk_start = (loff_t)pg_start << PAGE_CACHE_SHIFT;
- blk_end = (loff_t)pg_end << PAGE_CACHE_SHIFT;
+ blk_start = (loff_t)pg_start << PAGE_SHIFT;
+ blk_end = (loff_t)pg_end << PAGE_SHIFT;
truncate_inode_pages_range(mapping, blk_start,
blk_end - 1);
@@ -849,10 +866,8 @@ static int __exchange_data_block(struct inode *inode, pgoff_t src,
} else {
new_addr = dn.data_blkaddr;
if (!is_checkpointed_data(sbi, new_addr)) {
- dn.data_blkaddr = NULL_ADDR;
/* do not invalidate this block address */
- set_data_blkaddr(&dn);
- f2fs_update_extent_cache(&dn);
+ f2fs_update_data_blkaddr(&dn, NULL_ADDR);
do_replace = true;
}
f2fs_put_dnode(&dn);
@@ -879,7 +894,7 @@ static int __exchange_data_block(struct inode *inode, pgoff_t src,
get_node_info(sbi, dn.nid, &ni);
f2fs_replace_block(sbi, &dn, dn.data_blkaddr, new_addr,
- ni.version, true);
+ ni.version, true, false);
f2fs_put_dnode(&dn);
} else {
struct page *psrc, *pdst;
@@ -887,7 +902,7 @@ static int __exchange_data_block(struct inode *inode, pgoff_t src,
psrc = get_lock_data_page(inode, src, true);
if (IS_ERR(psrc))
return PTR_ERR(psrc);
- pdst = get_new_data_page(inode, NULL, dst, false);
+ pdst = get_new_data_page(inode, NULL, dst, true);
if (IS_ERR(pdst)) {
f2fs_put_page(psrc, 1);
return PTR_ERR(pdst);
@@ -903,9 +918,7 @@ static int __exchange_data_block(struct inode *inode, pgoff_t src,
err_out:
if (!get_dnode_of_data(&dn, src, LOOKUP_NODE)) {
- dn.data_blkaddr = new_addr;
- set_data_blkaddr(&dn);
- f2fs_update_extent_cache(&dn);
+ f2fs_update_data_blkaddr(&dn, new_addr);
f2fs_put_dnode(&dn);
}
return ret;
@@ -918,7 +931,7 @@ static int f2fs_do_collapse(struct inode *inode, pgoff_t start, pgoff_t end)
int ret = 0;
for (; end < nrpages; start++, end++) {
- f2fs_balance_fs(sbi);
+ f2fs_balance_fs(sbi, true);
f2fs_lock_op(sbi);
ret = __exchange_data_block(inode, end, start, true);
f2fs_unlock_op(sbi);
@@ -941,16 +954,12 @@ static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
return -EINVAL;
- f2fs_balance_fs(F2FS_I_SB(inode));
-
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- pg_start = offset >> PAGE_CACHE_SHIFT;
- pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = offset >> PAGE_SHIFT;
+ pg_end = (offset + len) >> PAGE_SHIFT;
/* write out all dirty pages from offset */
ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
@@ -991,13 +1000,9 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
if (ret)
return ret;
- f2fs_balance_fs(sbi);
-
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
if (ret)
@@ -1005,11 +1010,11 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
truncate_pagecache_range(inode, offset, offset + len - 1);
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+ pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ off_start = offset & (PAGE_SIZE - 1);
+ off_end = (offset + len) & (PAGE_SIZE - 1);
if (pg_start == pg_end) {
ret = fill_zero(inode, pg_start, off_start,
@@ -1023,12 +1028,12 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
} else {
if (off_start) {
ret = fill_zero(inode, pg_start++, off_start,
- PAGE_CACHE_SIZE - off_start);
+ PAGE_SIZE - off_start);
if (ret)
return ret;
new_size = max_t(loff_t, new_size,
- (loff_t)pg_start << PAGE_CACHE_SHIFT);
+ (loff_t)pg_start << PAGE_SHIFT);
}
for (index = pg_start; index < pg_end; index++) {
@@ -1053,18 +1058,13 @@ static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
if (dn.data_blkaddr != NEW_ADDR) {
invalidate_blocks(sbi, dn.data_blkaddr);
-
- dn.data_blkaddr = NEW_ADDR;
- set_data_blkaddr(&dn);
-
- dn.data_blkaddr = NULL_ADDR;
- f2fs_update_extent_cache(&dn);
+ f2fs_update_data_blkaddr(&dn, NEW_ADDR);
}
f2fs_put_dnode(&dn);
f2fs_unlock_op(sbi);
new_size = max_t(loff_t, new_size,
- (loff_t)(index + 1) << PAGE_CACHE_SHIFT);
+ (loff_t)(index + 1) << PAGE_SHIFT);
}
if (off_end) {
@@ -1104,13 +1104,11 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
return -EINVAL;
- f2fs_balance_fs(sbi);
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ f2fs_balance_fs(sbi, true);
ret = truncate_blocks(inode, i_size_read(inode), true);
if (ret)
@@ -1123,8 +1121,8 @@ static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
truncate_pagecache(inode, offset);
- pg_start = offset >> PAGE_CACHE_SHIFT;
- pg_end = (offset + len) >> PAGE_CACHE_SHIFT;
+ pg_start = offset >> PAGE_SHIFT;
+ pg_end = (offset + len) >> PAGE_SHIFT;
delta = pg_end - pg_start;
nrpages = (i_size_read(inode) + PAGE_SIZE - 1) / PAGE_SIZE;
@@ -1154,23 +1152,21 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
loff_t off_start, off_end;
int ret = 0;
- f2fs_balance_fs(sbi);
-
ret = inode_newsize_ok(inode, (len + offset));
if (ret)
return ret;
- if (f2fs_has_inline_data(inode)) {
- ret = f2fs_convert_inline_inode(inode);
- if (ret)
- return ret;
- }
+ ret = f2fs_convert_inline_inode(inode);
+ if (ret)
+ return ret;
- pg_start = ((unsigned long long) offset) >> PAGE_CACHE_SHIFT;
- pg_end = ((unsigned long long) offset + len) >> PAGE_CACHE_SHIFT;
+ f2fs_balance_fs(sbi, true);
- off_start = offset & (PAGE_CACHE_SIZE - 1);
- off_end = (offset + len) & (PAGE_CACHE_SIZE - 1);
+ pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
+ pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
+
+ off_start = offset & (PAGE_SIZE - 1);
+ off_end = (offset + len) & (PAGE_SIZE - 1);
f2fs_lock_op(sbi);
@@ -1188,12 +1184,12 @@ noalloc:
if (pg_start == pg_end)
new_size = offset + len;
else if (index == pg_start && off_start)
- new_size = (loff_t)(index + 1) << PAGE_CACHE_SHIFT;
+ new_size = (loff_t)(index + 1) << PAGE_SHIFT;
else if (index == pg_end)
- new_size = ((loff_t)index << PAGE_CACHE_SHIFT) +
+ new_size = ((loff_t)index << PAGE_SHIFT) +
off_end;
else
- new_size += PAGE_CACHE_SIZE;
+ new_size += PAGE_SIZE;
}
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
@@ -1226,7 +1222,7 @@ static long f2fs_fallocate(struct file *file, int mode,
FALLOC_FL_INSERT_RANGE))
return -EOPNOTSUPP;
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
if (mode & FALLOC_FL_PUNCH_HOLE) {
if (offset >= inode->i_size)
@@ -1246,10 +1242,11 @@ static long f2fs_fallocate(struct file *file, int mode,
if (!ret) {
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
mark_inode_dirty(inode);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
}
out:
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
trace_f2fs_fallocate(inode, mode, offset, len, ret);
return ret;
@@ -1259,7 +1256,7 @@ static int f2fs_release_file(struct inode *inode, struct file *filp)
{
/* some remained atomic pages should discarded */
if (f2fs_is_atomic_file(inode))
- commit_inmem_pages(inode, true);
+ drop_inmem_pages(inode);
if (f2fs_is_volatile_file(inode)) {
set_inode_flag(F2FS_I(inode), FI_DROP_CACHE);
filemap_fdatawrite(inode->i_mapping);
@@ -1313,13 +1310,13 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
flags = f2fs_mask_flags(inode->i_mode, flags);
- mutex_lock(&inode->i_mutex);
+ inode_lock(inode);
oldflags = fi->i_flags;
if ((flags ^ oldflags) & (FS_APPEND_FL | FS_IMMUTABLE_FL)) {
if (!capable(CAP_LINUX_IMMUTABLE)) {
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
ret = -EPERM;
goto out;
}
@@ -1328,7 +1325,7 @@ static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
flags = flags & FS_FL_USER_MODIFIABLE;
flags |= oldflags & ~FS_FL_USER_MODIFIABLE;
fi->i_flags = flags;
- mutex_unlock(&inode->i_mutex);
+ inode_unlock(inode);
f2fs_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME;
@@ -1353,8 +1350,6 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
if (!inode_owner_or_capable(inode))
return -EACCES;
- f2fs_balance_fs(F2FS_I_SB(inode));
-
if (f2fs_is_atomic_file(inode))
return 0;
@@ -1363,6 +1358,8 @@ static int f2fs_ioc_start_atomic_write(struct file *filp)
return ret;
set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+
return 0;
}
@@ -1383,9 +1380,11 @@ static int f2fs_ioc_commit_atomic_write(struct file *filp)
if (f2fs_is_atomic_file(inode)) {
clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- ret = commit_inmem_pages(inode, false);
- if (ret)
+ ret = commit_inmem_pages(inode);
+ if (ret) {
+ set_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
goto err_out;
+ }
}
ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
@@ -1410,6 +1409,7 @@ static int f2fs_ioc_start_volatile_write(struct file *filp)
return ret;
set_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return 0;
}
@@ -1441,13 +1441,17 @@ static int f2fs_ioc_abort_volatile_write(struct file *filp)
if (ret)
return ret;
- f2fs_balance_fs(F2FS_I_SB(inode));
-
- clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
- clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
- commit_inmem_pages(inode, true);
+ if (f2fs_is_atomic_file(inode)) {
+ clear_inode_flag(F2FS_I(inode), FI_ATOMIC_FILE);
+ drop_inmem_pages(inode);
+ }
+ if (f2fs_is_volatile_file(inode)) {
+ clear_inode_flag(F2FS_I(inode), FI_VOLATILE_FILE);
+ ret = f2fs_sync_file(filp, 0, LLONG_MAX, 0);
+ }
mnt_drop_write_file(filp);
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return ret;
}
@@ -1487,6 +1491,7 @@ static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
default:
return -EINVAL;
}
+ f2fs_update_time(sbi, REQ_TIME);
return 0;
}
@@ -1517,6 +1522,7 @@ static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
if (copy_to_user((struct fstrim_range __user *)arg, &range,
sizeof(range)))
return -EFAULT;
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
return 0;
}
@@ -1532,38 +1538,30 @@ static bool uuid_is_nonzero(__u8 u[16])
static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_encryption_policy policy;
+ struct fscrypt_policy policy;
struct inode *inode = file_inode(filp);
- if (copy_from_user(&policy, (struct f2fs_encryption_policy __user *)arg,
- sizeof(policy)))
+ if (copy_from_user(&policy, (struct fscrypt_policy __user *)arg,
+ sizeof(policy)))
return -EFAULT;
- return f2fs_process_policy(&policy, inode);
-#else
- return -EOPNOTSUPP;
-#endif
+ f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
+ return fscrypt_process_policy(inode, &policy);
}
static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_encryption_policy policy;
+ struct fscrypt_policy policy;
struct inode *inode = file_inode(filp);
int err;
- err = f2fs_get_policy(inode, &policy);
+ err = fscrypt_get_policy(inode, &policy);
if (err)
return err;
- if (copy_to_user((struct f2fs_encryption_policy __user *)arg, &policy,
- sizeof(policy)))
+ if (copy_to_user((struct fscrypt_policy __user *)arg, &policy, sizeof(policy)))
return -EFAULT;
return 0;
-#else
- return -EOPNOTSUPP;
-#endif
}
static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
@@ -1586,13 +1584,13 @@ static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
err = f2fs_commit_super(sbi, false);
-
- mnt_drop_write_file(filp);
if (err) {
/* undo new data */
memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
+ mnt_drop_write_file(filp);
return err;
}
+ mnt_drop_write_file(filp);
got_it:
if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
16))
@@ -1629,7 +1627,6 @@ static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
{
struct inode *inode = file_inode(filp);
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- struct cp_control cpc;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -1637,13 +1634,196 @@ static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
if (f2fs_readonly(sbi->sb))
return -EROFS;
- cpc.reason = __get_cp_reason(sbi);
+ return f2fs_sync_fs(sbi->sb, 1);
+}
- mutex_lock(&sbi->gc_mutex);
- write_checkpoint(sbi, &cpc);
- mutex_unlock(&sbi->gc_mutex);
+static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
+ struct file *filp,
+ struct f2fs_defragment *range)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_map_blocks map = { .m_next_pgofs = NULL };
+ struct extent_info ei;
+ pgoff_t pg_start, pg_end;
+ unsigned int blk_per_seg = sbi->blocks_per_seg;
+ unsigned int total = 0, sec_num;
+ unsigned int pages_per_sec = sbi->segs_per_sec * blk_per_seg;
+ block_t blk_end = 0;
+ bool fragmented = false;
+ int err;
- return 0;
+ /* if in-place-update policy is enabled, don't waste time here */
+ if (need_inplace_update(inode))
+ return -EINVAL;
+
+ pg_start = range->start >> PAGE_SHIFT;
+ pg_end = (range->start + range->len) >> PAGE_SHIFT;
+
+ f2fs_balance_fs(sbi, true);
+
+ inode_lock(inode);
+
+ /* writeback all dirty pages in the range */
+ err = filemap_write_and_wait_range(inode->i_mapping, range->start,
+ range->start + range->len - 1);
+ if (err)
+ goto out;
+
+ /*
+ * lookup mapping info in extent cache, skip defragmenting if physical
+ * block addresses are continuous.
+ */
+ if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
+ if (ei.fofs + ei.len >= pg_end)
+ goto out;
+ }
+
+ map.m_lblk = pg_start;
+
+ /*
+ * lookup mapping info in dnode page cache, skip defragmenting if all
+ * physical block addresses are continuous even if there are hole(s)
+ * in logical blocks.
+ */
+ while (map.m_lblk < pg_end) {
+ map.m_len = pg_end - map.m_lblk;
+ err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_READ);
+ if (err)
+ goto out;
+
+ if (!(map.m_flags & F2FS_MAP_FLAGS)) {
+ map.m_lblk++;
+ continue;
+ }
+
+ if (blk_end && blk_end != map.m_pblk) {
+ fragmented = true;
+ break;
+ }
+ blk_end = map.m_pblk + map.m_len;
+
+ map.m_lblk += map.m_len;
+ }
+
+ if (!fragmented)
+ goto out;
+
+ map.m_lblk = pg_start;
+ map.m_len = pg_end - pg_start;
+
+ sec_num = (map.m_len + pages_per_sec - 1) / pages_per_sec;
+
+ /*
+ * make sure there are enough free section for LFS allocation, this can
+ * avoid defragment running in SSR mode when free section are allocated
+ * intensively
+ */
+ if (has_not_enough_free_secs(sbi, sec_num)) {
+ err = -EAGAIN;
+ goto out;
+ }
+
+ while (map.m_lblk < pg_end) {
+ pgoff_t idx;
+ int cnt = 0;
+
+do_map:
+ map.m_len = pg_end - map.m_lblk;
+ err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_READ);
+ if (err)
+ goto clear_out;
+
+ if (!(map.m_flags & F2FS_MAP_FLAGS)) {
+ map.m_lblk++;
+ continue;
+ }
+
+ set_inode_flag(F2FS_I(inode), FI_DO_DEFRAG);
+
+ idx = map.m_lblk;
+ while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
+ struct page *page;
+
+ page = get_lock_data_page(inode, idx, true);
+ if (IS_ERR(page)) {
+ err = PTR_ERR(page);
+ goto clear_out;
+ }
+
+ set_page_dirty(page);
+ f2fs_put_page(page, 1);
+
+ idx++;
+ cnt++;
+ total++;
+ }
+
+ map.m_lblk = idx;
+
+ if (idx < pg_end && cnt < blk_per_seg)
+ goto do_map;
+
+ clear_inode_flag(F2FS_I(inode), FI_DO_DEFRAG);
+
+ err = filemap_fdatawrite(inode->i_mapping);
+ if (err)
+ goto out;
+ }
+clear_out:
+ clear_inode_flag(F2FS_I(inode), FI_DO_DEFRAG);
+out:
+ inode_unlock(inode);
+ if (!err)
+ range->len = (u64)total << PAGE_SHIFT;
+ return err;
+}
+
+static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
+{
+ struct inode *inode = file_inode(filp);
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+ struct f2fs_defragment range;
+ int err;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ if (!S_ISREG(inode->i_mode))
+ return -EINVAL;
+
+ err = mnt_want_write_file(filp);
+ if (err)
+ return err;
+
+ if (f2fs_readonly(sbi->sb)) {
+ err = -EROFS;
+ goto out;
+ }
+
+ if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
+ sizeof(range))) {
+ err = -EFAULT;
+ goto out;
+ }
+
+ /* verify alignment of offset & size */
+ if (range.start & (F2FS_BLKSIZE - 1) ||
+ range.len & (F2FS_BLKSIZE - 1)) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ err = f2fs_defragment_range(sbi, filp, &range);
+ f2fs_update_time(sbi, REQ_TIME);
+ if (err < 0)
+ goto out;
+
+ if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
+ sizeof(range)))
+ err = -EFAULT;
+out:
+ mnt_drop_write_file(filp);
+ return err;
}
long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
@@ -1679,6 +1859,8 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return f2fs_ioc_gc(filp, arg);
case F2FS_IOC_WRITE_CHECKPOINT:
return f2fs_ioc_write_checkpoint(filp, arg);
+ case F2FS_IOC_DEFRAGMENT:
+ return f2fs_ioc_defragment(filp, arg);
default:
return -ENOTTY;
}
@@ -1686,14 +1868,32 @@ long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
- struct inode *inode = file_inode(iocb->ki_filp);
+ struct file *file = iocb->ki_filp;
+ struct inode *inode = file_inode(file);
+ ssize_t ret;
if (f2fs_encrypted_inode(inode) &&
- !f2fs_has_encryption_key(inode) &&
- f2fs_get_encryption_info(inode))
+ !fscrypt_has_encryption_key(inode) &&
+ fscrypt_get_encryption_info(inode))
return -EACCES;
- return generic_file_write_iter(iocb, from);
+ inode_lock(inode);
+ ret = generic_write_checks(iocb, from);
+ if (ret > 0) {
+ ret = f2fs_preallocate_blocks(iocb, from);
+ if (!ret)
+ ret = __generic_file_write_iter(iocb, from);
+ }
+ inode_unlock(inode);
+
+ if (ret > 0) {
+ ssize_t err;
+
+ err = generic_write_sync(file, iocb->ki_pos - ret, ret);
+ if (err < 0)
+ ret = err;
+ }
+ return ret;
}
#ifdef CONFIG_COMPAT
@@ -1706,6 +1906,22 @@ long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case F2FS_IOC32_SETFLAGS:
cmd = F2FS_IOC_SETFLAGS;
break;
+ case F2FS_IOC32_GETVERSION:
+ cmd = F2FS_IOC_GETVERSION;
+ break;
+ case F2FS_IOC_START_ATOMIC_WRITE:
+ case F2FS_IOC_COMMIT_ATOMIC_WRITE:
+ case F2FS_IOC_START_VOLATILE_WRITE:
+ case F2FS_IOC_RELEASE_VOLATILE_WRITE:
+ case F2FS_IOC_ABORT_VOLATILE_WRITE:
+ case F2FS_IOC_SHUTDOWN:
+ case F2FS_IOC_SET_ENCRYPTION_POLICY:
+ case F2FS_IOC_GET_ENCRYPTION_PWSALT:
+ case F2FS_IOC_GET_ENCRYPTION_POLICY:
+ case F2FS_IOC_GARBAGE_COLLECT:
+ case F2FS_IOC_WRITE_CHECKPOINT:
+ case F2FS_IOC_DEFRAGMENT:
+ break;
default:
return -ENOIOCTLCMD;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.