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| author | Harshad Shirwadkar <harshadshirwadkar@gmail.com> | 2020-11-05 19:59:08 -0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-11-06 23:01:05 -0500 |
| commit | da0c5d2695265962f20099737348fcb3ff524d0f (patch) | |
| tree | c8a3ab25c8b0d796a0832def3186d1c8e7cb0d3f /fs | |
| parent | 556e0319fbb8eee3fa19fdcc27c8bcb4af1c7211 (diff) | |
| download | linux-da0c5d2695265962f20099737348fcb3ff524d0f.tar.bz2 | |
ext4: issue fsdev cache flush before starting fast commit
If the journal dev is different from fsdev, issue a cache flush before
committing fast commit blocks to disk.
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20201106035911.1942128-20-harshadshirwadkar@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/fast_commit.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c index fb9b4e9d82b2..ebe5f423f8f2 100644 --- a/fs/ext4/fast_commit.c +++ b/fs/ext4/fast_commit.c @@ -1007,6 +1007,13 @@ static int ext4_fc_perform_commit(journal_t *journal) if (ret) return ret; + /* + * If file system device is different from journal device, issue a cache + * flush before we start writing fast commit blocks. + */ + if (journal->j_fs_dev != journal->j_dev) + blkdev_issue_flush(journal->j_fs_dev, GFP_NOFS); + blk_start_plug(&plug); if (sbi->s_fc_bytes == 0) { /* |