From: David Howells <dhowells@xxxxxxxxxx> [ Upstream commit 5a972474cf685bf99ca430979657095bda3a15c8 ] 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@xxxxxxxxxxxx> Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Reviewed-by: Marc Dionne <marc.dionne@xxxxxxxxxxxx> cc: linux-afs@xxxxxxxxxxxxxxxxxxx Link: https://lore.kernel.org/r/CAB9dFdvHsLsw7CMnB+4cgciWDSqVjuij4mH3TaXnHQB8sz5rHw@xxxxxxxxxxxxxx/ [1] Link: https://lore.kernel.org/r/162610728339.3408253.4604750166391496546.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v2 (no v1) Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- 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); -- 2.30.2