From: Denis Efremov <efremov@xxxxxxxxx>
commit a8c73c1a614f6da6c0b04c393f87447e28cb6de4 upstream.
Use kvfree() to free the pages and vmas, since they are allocated by
kvmalloc_array() in a loop.
Fixes: d4ef647510b1 ("io_uring: avoid page allocation warnings")
Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20200605093203.40087-1-efremov@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/io_uring.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -3498,8 +3498,8 @@ static int io_sqe_buffer_register(struct
ret = 0;
if (!pages || nr_pages > got_pages) {
- kfree(vmas);
- kfree(pages);
+ kvfree(vmas);
+ kvfree(pages);
pages = kvmalloc_array(nr_pages, sizeof(struct page *),
GFP_KERNEL);
vmas = kvmalloc_array(nr_pages,
