From: Vishal Moola (Oracle) vishal.moola@gmail.com
commit a2b6f2ab3e144f8e23666aafeba0e4d9ea4b7975 upstream.
Commit acc8d8588cb7 converted afs_writepages_region() to write back a folio batch. If writeback needs rescheduling, the function exits without dropping the references to the folios in fbatch. This patch fixes that.
[DH: Moved the added line before the _leave()]
Fixes: acc8d8588cb7 ("afs: convert afs_writepages_region() to use filemap_get_folios_tag()") Signed-off-by: Vishal Moola (Oracle) vishal.moola@gmail.com Signed-off-by: David Howells dhowells@redhat.com cc: Marc Dionne marc.dionne@auristor.com cc: linux-afs@lists.infradead.org Link: https://lore.kernel.org/r/20230607204120.89416-1-vishal.moola@gmail.com/ Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/afs/write.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/afs/write.c b/fs/afs/write.c index c822d6006033..fd433024070e 100644 --- a/fs/afs/write.c +++ b/fs/afs/write.c @@ -763,6 +763,7 @@ static int afs_writepages_region(struct address_space *mapping, if (wbc->sync_mode == WB_SYNC_NONE) { if (skips >= 5 || need_resched()) { *_next = start; + folio_batch_release(&fbatch); _leave(" = 0 [%llx]", *_next); return 0; }