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| author | Jan Kara <jack@suse.cz> | 2023-03-29 18:49:43 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2023-04-15 02:58:33 +0300 |
| commit | ab382539adcb43f52d984abf58d8e3459cd707a2 (patch) | |
| tree | 36509de0562a408b73b8720883d836ca91744663 /fs/ext4 | |
| parent | 951cafa6b80e55b966047b0c9cc5564df8b92145 (diff) | |
| download | linux-ab382539adcb43f52d984abf58d8e3459cd707a2.tar.xz | |
ext4: Update comment in mpage_prepare_extent_to_map()
Since filemap_write_and_wait() is now enough to get journalled data to
final location update the comment in mpage_prepare_extent_to_map().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230329154950.19720-12-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/inode.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d43beb886a30..c1888cd2a48f 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2496,11 +2496,10 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd) * Just submit the page. For data=journal mode we * first handle writeout of the page for checkpoint and * only after that handle delayed page dirtying. This - * is crutial so that forcing a transaction commit and - * then calling filemap_write_and_wait() guarantees - * current state of data is in its final location. Such - * sequence is used for example by insert/collapse - * range operations before discarding the page cache. + * makes sure current data is checkpointed to the final + * location before possibly journalling it again which + * is desirable when the page is frequently dirtied + * through a pin. */ if (!mpd->can_map) { WARN_ON_ONCE(sb->s_writers.frozen == |