This prepares for upcoming checks in page freeing path.
Signed-off-by: Zi Yan <[email protected]>
Cc: Christian Brauner <[email protected]>
Cc: K Prateek Nayak <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Eric Sandeen <[email protected]>
---
kernel/watch_queue.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/kernel/watch_queue.c b/kernel/watch_queue.c
index 52f89f1137da..8f887eafd438 100644
--- a/kernel/watch_queue.c
+++ b/kernel/watch_queue.c
@@ -301,8 +301,10 @@ long watch_queue_set_size(struct pipe_inode_info *pipe,
unsigned int nr_notes)
return 0;
error_p:
- while (--i >= 0)
+ while (--i >= 0) {
+ set_page_private(pages[i], 0);
__free_page(pages[i]);
+ }
kfree(pages);
error:
(void) account_pipe_buffers(pipe->user, nr_pages, pipe->nr_accounted);
@@ -398,8 +400,10 @@ static void __put_watch_queue(struct kref *kref)
struct watch_filter *wfilter;
int i;
- for (i = 0; i < wqueue->nr_pages; i++)
+ for (i = 0; i < wqueue->nr_pages; i++) {
+ set_page_private(wqueue->notes[i], 0);
__free_page(wqueue->notes[i]);
+ }
kfree(wqueue->notes);
bitmap_free(wqueue->notes_bitmap);
--
2.51.0
