averello/linux-stable-mirror
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2026-09-22 09:34:56 +02:00
Code Issues Packages Projects Releases Wiki Activity

netfs: release readahead folios on iterator preparation failure

Browse Source 
[ Upstream commit 87eb3d272d ]

netfs_prepare_read_iterator() batches readahead folios in put_batch so that
the folio references can be dropped after the I/O iterator has been
prepared.

If rolling_buffer_load_from_ra() fails after earlier folios have been
batched, the function returns immediately and leaves those references held.
Release the batch before returning the error.

Fixes: 06fa229ceb ("netfs: Abstract out a rolling folio buffer implementation")
Signed-off-by: Yichong Chen <chenyichong@uniontech.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/20260727130716.1099906-4-dhowells@redhat.com
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yichong Chen
2026-08-09 20:25:05 +02:00
committed by Greg Kroah-Hartman
parent 291ebecdf3
commit 2c148a31ca
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
fs/netfs/buffered_read.c
+3 -1
View File
@@ -102,8 +102,10 @@ static ssize_t netfs_prepare_read_iterator(struct netfs_io_subrequest *subreq,
added = rolling_buffer_load_from_ra(&rreq->buffer, ractl,
&put_batch);
if (added < 0)
if (added < 0) {
folio_batch_release(&put_batch);
return added;
}
rreq->submitted += added;
}
folio_batch_release(&put_batch);