diff options
| author | NeilBrown <neilb@suse.de> | 2024-02-28 10:23:31 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-03-06 14:48:42 +0000 |
| commit | be8a177250b2ba387a55ce37dd4a8046a0ccab55 (patch) | |
| tree | f3bec69bd99ffa5648dea1451ef31e7135472349 /net/unix/garbage.c | |
| parent | fa8c776f4c323a9fbc8ddf25edcb962083391430 (diff) | |
NFS: Fix data corruption caused by congestion.
when AOP_WRITEPAGE_ACTIVATE is returned (as NFS does when it detects
congestion) it is important that the folio is redirtied.
nfs_writepage_locked() doesn't do this, so files can become corrupted as
writes can be lost.
Note that this is not needed in v6.8 as AOP_WRITEPAGE_ACTIVATE cannot be
returned. It is needed for kernels v5.18..v6.7. Prior to 6.3 the patch
is different as it needs to mention "page", not "folio".
Reported-and-tested-by: Jacek Tomaka <Jacek.Tomaka@poczta.fm>
Fixes: 6df25e58532b ("nfs: remove reliance on bdi congestion")
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/unix/garbage.c')
0 files changed, 0 insertions, 0 deletions