4 Mar
2024
4 Mar
'24
11:31 a.m.
On Wed, Feb 28, 2024 at 10:25:49AM +1100, NeilBrown wrote:
when AOP_WRITEPAGE_ACTIVATE is returned (as NFS does when it detects congestion) it is important that the page 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. From 6.3 onward the patch is different as it needs to mention "folio", not "page".
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
fs/nfs/write.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
All now queued up, thanks.
greg k-h