The patch titled Subject: afs: fix dangling folio ref counts in writeback has been added to the -mm mm-hotfixes-unstable branch. Its filename is afs-fix-dangling-folio-ref-counts-in-writeback.patch

This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...

This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------ From: "Vishal Moola (Oracle)" vishal.moola@gmail.com Subject: afs: fix dangling folio ref counts in writeback Date: Wed, 7 Jun 2023 13:41:19 -0700

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.

Link: https://lkml.kernel.org/r/20230607204120.89416-1-vishal.moola@gmail.com Fixes: acc8d8588cb7 ("afs: convert afs_writepages_region() to use filemap_get_folios_tag()") Signed-off-by: Vishal Moola (Oracle) vishal.moola@gmail.com Cc: David Howells dhowells@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---

fs/afs/write.c | 1 + 1 file changed, 1 insertion(+)

--- a/fs/afs/write.c~afs-fix-dangling-folio-ref-counts-in-writeback +++ a/fs/afs/write.c @@ -764,6 +764,7 @@ static int afs_writepages_region(struct if (skips >= 5 || need_resched()) { *_next = start; _leave(" = 0 [%llx]", *_next); + folio_batch_release(&fbatch); return 0; } skips++; _

Patches currently in -mm which might be from vishal.moola@gmail.com are

afs-fix-dangling-folio-ref-counts-in-writeback.patch afs-fix-waiting-for-writeback-then-skipping-folio.patch