summaryrefslogtreecommitdiff
path: root/fs/mpage.c
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2022-12-29 06:10:26 -1000
committerAndrew Morton <akpm@linux-foundation.org>2023-01-18 17:12:50 -0800
commit5b68de67037168f826d6fe434d03b5876aec4cb6 (patch)
tree71cddb049345f220f58e26c348cf747f7840efd8 /fs/mpage.c
parent81e506bec9be1eceaf5a2c654e28ba5176ef48d8 (diff)
fs: remove an outdated comment on mpage_writepages
Patch series "remove generic_writepages" This series removes generic_writepages by open coding the current functionality in the three remaining callers. Besides removing some code the main benefit is that one of the few remaining ->writepage callers from outside the core page cache code go away. This patch (of 6): mpage_writepages doesn't do any of the page locking itself, so remove and outdated comment on the locking pattern there. Link: https://lkml.kernel.org/r/20221229161031.391878-1-hch@lst.de Link: https://lkml.kernel.org/r/20221229161031.391878-2-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Cc: Joel Becker <jlbec@evilplan.org> Cc: Joseph Qi <joseph.qi@linux.alibaba.com> Cc: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/mpage.c')
-rw-r--r--fs/mpage.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/fs/mpage.c b/fs/mpage.c
index db59cbf6affc..d36a95473f77 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -641,14 +641,6 @@ out:
*
* This is a library function, which implements the writepages()
* address_space_operation.
- *
- * If a page is already under I/O, generic_writepages() skips it, even
- * if it's dirty. This is desirable behaviour for memory-cleaning writeback,
- * but it is INCORRECT for data-integrity system calls such as fsync(). fsync()
- * and msync() need to guarantee that all the data which was dirty at the time
- * the call was made get new I/O started against them. If wbc->sync_mode is
- * WB_SYNC_ALL then we were called for data integrity and we must wait for
- * existing IO to complete.
*/
int
mpage_writepages(struct address_space *mapping,