[PATCH v2 13/14] netfs: Fix folio state after ENOMEM whilst under writeback iteration
David Howells <[email protected]>
| Newsgroups | org.kernel.vger.ceph-devel,dev.linux.lists.netfs,org.kernel.vger.linux-cifs,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
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: 06fa229ceb36 ("netfs: Abstract out a rolling folio buffer implementation")
Link: https://sashiko.dev/#/patchset/20260619140646.2633762-1-dhowells%40redhat.com
Signed-off-by: David Howells <[email protected]>
cc: Paulo Alcantara <[email protected]>
cc: Matthew Wilcox <[email protected]>
cc: [email protected]
cc: [email protected]
---
fs/netfs/write_issue.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/netfs/write_issue.c b/fs/netfs/write_issue.c
index d1f98cca5d0f..6eb6cff12c17 100644
--- a/fs/netfs/write_issue.c
+++ b/fs/netfs/write_issue.c
@@ -334,8 +334,11 @@ static int netfs_write_folio(struct netfs_io_request *wreq,
_enter("");
- if (rolling_buffer_make_space(&wreq->buffer) < 0)
+ if (rolling_buffer_make_space(&wreq->buffer) < 0) {
+ folio_redirty_for_writepage(wbc, folio);
+ folio_unlock(folio);
return -ENOMEM;
+ }
/* netfs_perform_write() may shift i_size around the page or from out
* of the page to beyond it, but cannot move i_size into or through the