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netfs: Fix folio state after ENOMEM whilst under writeback iteration

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Fix the state of the current folio when ENOMEM occurs during writeback
iteration.  The folio needs to be redirtied and unlocked before the
terminal writeback_iter() is invoked.

Fixes: 06fa229ceb ("netfs: Abstract out a rolling folio buffer implementation")
Link: https://sashiko.dev/#/patchset/20260619140646.2633762-1-dhowells%40redhat.com
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260625140640.3116900-15-dhowells@redhat.com
cc: Paulo Alcantara <pc@manguebit.org>
cc: Matthew Wilcox <willy@infradead.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
This commit is contained in:
David Howells 2026-06-25 15:06:32 +01:00 committed by Christian Brauner
parent ac5f95ac5d
commit b6a713fd34
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1 changed files with 4 additions and 0 deletions
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4
fs/netfs/write_issue.c
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@ -582,6 +582,10 @@ int netfs_writepages(struct address_space *mapping,
}
error = netfs_write_folio(wreq, wbc, folio);
if (error == -ENOMEM) {
folio_redirty_for_writepage(wbc, folio);
folio_unlock(folio);
}
} while ((folio = writeback_iter(mapping, wbc, folio, &error)));
netfs_end_issue_write(wreq);