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SubjectRe: [PATCH v2 3/4] afs: Fix setting of writeback_index
On Mon, Jul 12, 2021 at 1:28 PM David Howells <dhowells@redhat.com> wrote:
>
> Fix afs_writepages() to always set mapping->writeback_index to a page index
> and not a byte position[1].
>
> Fixes: 31143d5d515e ("AFS: implement basic file write support")
> Reported-by: Marc Dionne <marc.dionne@auristor.com>
> Signed-off-by: David Howells <dhowells@redhat.com>
> Link: https://lore.kernel.org/r/CAB9dFdvHsLsw7CMnB+4cgciWDSqVjuij4mH3TaXnHQB8sz5rHw@mail.gmail.com/ [1]
> cc: linux-afs@lists.infradead.org
> ---
>
> fs/afs/write.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/afs/write.c b/fs/afs/write.c
> index 1ed62e0ccfe5..c0534697268e 100644
> --- a/fs/afs/write.c
> +++ b/fs/afs/write.c
> @@ -784,7 +784,7 @@ int afs_writepages(struct address_space *mapping,
> } else if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX) {
> ret = afs_writepages_region(mapping, wbc, 0, LLONG_MAX, &next);
> if (wbc->nr_to_write > 0 && ret == 0)
> - mapping->writeback_index = next;
> + mapping->writeback_index = next / PAGE_SIZE;
> } else {
> ret = afs_writepages_region(mapping, wbc,
> wbc->range_start, wbc->range_end, &next);
>
>
>

Reviewed-by: Marc Dionne <marc.dionne@auristor.com>

Marc

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