diff mbox series

[v3,2/2] afs: unlock the folio when vnode is marked deleted

Message ID 20220707045112.10177-3-xiubli@redhat.com
State New
Headers show
Series netfs: fix the crash when unlocking the folio | expand

Commit Message

Xiubo Li July 7, 2022, 4:51 a.m. UTC 
From: Xiubo Li <xiubli@redhat.com>

The check_write_begin() should unlock the folio if return non-zero,
otherwise locked.

URL: https://tracker.ceph.com/issues/56423
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 fs/afs/file.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/fs/afs/file.c b/fs/afs/file.c
index afacce797fb9..b23e7b5a48ad 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -379,7 +379,13 @@  static int afs_check_write_begin(struct file *file, loff_t pos, unsigned len,
 {
 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));
 
-	return test_bit(AFS_VNODE_DELETED, &vnode->flags) ? -ESTALE : 0;
+	if (test_bit(AFS_VNODE_DELETED, &vnode->flags)) {
+		folio_unlock(*folio);
+		folio_put(*folio);
+		return -ESTALE;
+	}
+
+	return 0;
 }
 
 static void afs_free_request(struct netfs_io_request *rreq)