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authorChao Yu <yuchao0@huawei.com>2018-12-12 18:12:32 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2018-12-26 15:16:54 -0800
commit8ec18bff7b90b56eba5986555c174721ebd5670b (patch)
tree2c04f24ffb16ea81d5daae989d78652b9fce4cf8 /fs/f2fs
parent76c7bfb3a89371aa87bda99c8ee2611ff5150434 (diff)
f2fs: clean up checkpoint flow
This patch cleans up checkpoint flow a bit: - remove unneeded circulation of flushing meta pages. - don't flush nat_bits pages in prior to other checkpoint pages. - add bug_on to check remained meta pages after flushing. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/checkpoint.c18
1 files changed, 5 insertions, 13 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 1d8283370861..5401ea5e491d 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1329,11 +1329,9 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
int err;
/* Flush all the NAT/SIT pages */
- while (get_pages(sbi, F2FS_DIRTY_META)) {
- f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
- if (unlikely(f2fs_cp_error(sbi)))
- break;
- }
+ f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
+ f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) &&
+ !f2fs_cp_error(sbi));
/*
* modify checkpoint
@@ -1406,14 +1404,6 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
for (i = 0; i < nm_i->nat_bits_blocks; i++)
f2fs_update_meta_page(sbi, nm_i->nat_bits +
(i << F2FS_BLKSIZE_BITS), blk + i);
-
- /* Flush all the NAT BITS pages */
- while (get_pages(sbi, F2FS_DIRTY_META)) {
- f2fs_sync_meta_pages(sbi, META, LONG_MAX,
- FS_CP_META_IO);
- if (unlikely(f2fs_cp_error(sbi)))
- break;
- }
}
/* write out checkpoint buffer at block 0 */
@@ -1449,6 +1439,8 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
/* Here, we have one bio having CP pack except cp pack 2 page */
f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_CP_META_IO);
+ f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) &&
+ !f2fs_cp_error(sbi));
/* wait for previous submitted meta pages writeback */
f2fs_wait_on_all_pages_writeback(sbi);