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f2fs: compress: fix to guarantee persisting compressed blocks by CP

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[ Upstream commit 8a430dd49e ]

If data block in compressed cluster is not persisted with metadata
during checkpoint, after SPOR, the data may be corrupted, let's
guarantee to write compressed page by checkpoint.

Fixes: 4c8ff7095b ("f2fs: support data compression")
Reviewed-by: Daeho Jeong <daehojeong@google.com>
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chao Yu 2024-01-13 03:41:27 +08:00 committed by Sasha Levin
parent 492acea36b
commit e54cce8137
3 changed files with 15 additions and 10 deletions
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4
fs/f2fs/compress.c
View file

@ -1437,6 +1437,8 @@ void f2fs_compress_write_end_io(struct bio *bio, struct page *page)
struct f2fs_sb_info *sbi = bio->bi_private;
struct compress_io_ctx *cic =
(struct compress_io_ctx *)page_private(page);
enum count_type type = WB_DATA_TYPE(page,
f2fs_is_compressed_page(page));
int i;
if (unlikely(bio->bi_status))
@ -1444,7 +1446,7 @@ void f2fs_compress_write_end_io(struct bio *bio, struct page *page)
f2fs_compress_free_page(page);
dec_page_count(sbi, F2FS_WB_DATA);
dec_page_count(sbi, type);
if (atomic_dec_return(&cic->pending_pages))
return;

17
fs/f2fs/data.c
View file

@ -50,7 +50,7 @@ void f2fs_destroy_bioset(void)
bioset_exit(&f2fs_bioset);
}
static bool __is_cp_guaranteed(struct page *page)
bool f2fs_is_cp_guaranteed(struct page *page)
{
struct address_space *mapping = page->mapping;
struct inode *inode;
@ -67,8 +67,6 @@ static bool __is_cp_guaranteed(struct page *page)
S_ISDIR(inode->i_mode))
return true;
if (f2fs_is_compressed_page(page))
return false;
if ((S_ISREG(inode->i_mode) && IS_NOQUOTA(inode)) ||
page_private_gcing(page))
return true;
@ -327,7 +325,7 @@ static void f2fs_write_end_io(struct bio *bio)
bio_for_each_segment_all(bvec, bio, iter_all) {
struct page *page = bvec->bv_page;
enum count_type type = WB_DATA_TYPE(page);
enum count_type type = WB_DATA_TYPE(page, false);
if (page_private_dummy(page)) {
clear_page_private_dummy(page);
@ -733,7 +731,7 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
wbc_account_cgroup_owner(fio->io_wbc, fio->page, PAGE_SIZE);
inc_page_count(fio->sbi, is_read_io(fio->op) ?
__read_io_type(page) : WB_DATA_TYPE(fio->page));
__read_io_type(page) : WB_DATA_TYPE(fio->page, false));
__submit_bio(fio->sbi, bio, fio->type);
return 0;
@ -941,7 +939,7 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
if (fio->io_wbc)
wbc_account_cgroup_owner(fio->io_wbc, fio->page, PAGE_SIZE);
inc_page_count(fio->sbi, WB_DATA_TYPE(page));
inc_page_count(fio->sbi, WB_DATA_TYPE(page, false));
*fio->last_block = fio->new_blkaddr;
*fio->bio = bio;
@ -955,6 +953,7 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
enum page_type btype = PAGE_TYPE_OF_BIO(fio->type);
struct f2fs_bio_info *io = sbi->write_io[btype] + fio->temp;
struct page *bio_page;
enum count_type type;
f2fs_bug_on(sbi, is_read_io(fio->op));
@ -984,7 +983,8 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
/* set submitted = true as a return value */
fio->submitted = 1;
inc_page_count(sbi, WB_DATA_TYPE(bio_page));
type = WB_DATA_TYPE(bio_page, fio->compressed_page);
inc_page_count(sbi, type);
if (io->bio &&
(!io_is_mergeable(sbi, io->bio, io, fio, io->last_block_in_bio,
@ -997,7 +997,8 @@ void f2fs_submit_page_write(struct f2fs_io_info *fio)
if (F2FS_IO_ALIGNED(sbi) &&
(fio->type == DATA || fio->type == NODE) &&
fio->new_blkaddr & F2FS_IO_SIZE_MASK(sbi)) {
dec_page_count(sbi, WB_DATA_TYPE(bio_page));
dec_page_count(sbi, WB_DATA_TYPE(bio_page,
fio->compressed_page));
fio->retry = 1;
goto skip;
}

4
fs/f2fs/f2fs.h
View file

@ -1067,7 +1067,8 @@ struct f2fs_sm_info {
* f2fs monitors the number of several block types such as on-writeback,
* dirty dentry blocks, dirty node blocks, and dirty meta blocks.
*/
#define WB_DATA_TYPE(p) (__is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
#define WB_DATA_TYPE(p, f) \
(f || f2fs_is_cp_guaranteed(p) ? F2FS_WB_CP_DATA : F2FS_WB_DATA)
enum count_type {
F2FS_DIRTY_DENTS,
F2FS_DIRTY_DATA,
@ -3761,6 +3762,7 @@ void f2fs_init_ckpt_req_control(struct f2fs_sb_info *sbi);
*/
int __init f2fs_init_bioset(void);
void f2fs_destroy_bioset(void);
bool f2fs_is_cp_guaranteed(struct page *page);
int f2fs_init_bio_entry_cache(void);
void f2fs_destroy_bio_entry_cache(void);
void f2fs_submit_bio(struct f2fs_sb_info *sbi,