The netfs conversion lost a folio_unlock() for the case where
nfs_page_create_from_folio() returns an error (usually -ENOMEM). Restore
it.
Reported-by: David Jeffery <djeffery@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 6.4+
Fixes: 000dbe0bec05 ("NFS: Convert buffered read paths to use netfs when fscache is enabled")
Signed-off-by: Benjamin Coddington <bcodding@xxxxxxxxxx>
---
Resending this as I messed up Trond's email address on the first try:
https://lore.kernel.org/linux-nfs/CALF+zOn50xfKDBxqG1JfWVcRa+PvMvMpcWYfJmt0FWoUe0mW5w@xxxxxxxxxxxxxx/T/#t
---
fs/nfs/read.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 7dc21a48e3e7..a142287d86f6 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -305,6 +305,8 @@ int nfs_read_add_folio(struct nfs_pageio_descriptor *pgio,
new = nfs_page_create_from_folio(ctx, folio, 0, aligned_len);
if (IS_ERR(new)) {
error = PTR_ERR(new);
+ if (nfs_netfs_folio_unlock(folio))
+ folio_unlock(folio);
goto out;
}
--
2.43.0
