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| author | Chao Yu <yuchao0@huawei.com> | 2017-09-29 13:59:39 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-10 12:49:53 -0700 |
| commit | 1228b482c4ee26f3334dd83eb13bcf7e462f9c93 (patch) | |
| tree | d455026d467bb992187396da2ba104c80dd19694 /fs/f2fs/checkpoint.c | |
| parent | 39d787bec4f792e69e24b11aa3d61ae1c0e4830b (diff) | |
| download | linux-stable-1228b482c4ee26f3334dd83eb13bcf7e462f9c93.tar.gz linux-stable-1228b482c4ee26f3334dd83eb13bcf7e462f9c93.tar.bz2 linux-stable-1228b482c4ee26f3334dd83eb13bcf7e462f9c93.zip | |
f2fs: fix to flush multiple device in checkpoint
If f2fs manages multiple devices, in checkpoint, we need to issue flush
in those devices which contain dirty data/node in their cache before
we write checkpoint region, otherwise, filesystem metadata could be
corrupted if hitting SPO after checkpoint.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/checkpoint.c')
| -rw-r--r-- | fs/f2fs/checkpoint.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 571980793542..201608281681 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -1172,6 +1172,7 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) struct super_block *sb = sbi->sb; struct curseg_info *seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE); u64 kbytes_written; + int err; /* Flush all the NAT/SIT pages */ while (get_pages(sbi, F2FS_DIRTY_META)) { @@ -1265,6 +1266,11 @@ static int do_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc) if (unlikely(f2fs_cp_error(sbi))) return -EIO; + /* flush all device cache */ + err = f2fs_flush_device_cache(sbi); + if (err) + return err; + /* write out checkpoint buffer at block 0 */ update_meta_page(sbi, ckpt, start_blk++); |