tree 09a10ab7a754d092e46bff6cd46d41847de439a4
parent c81d57679ee4b87a5b50e9afe4e5d1866d08b9ad
author Filipe Manana <fdmanana@gmail.com> 1401970944 +0100
committer Chris Mason <clm@fb.com> 1402359672 -0700

Btrfs: make sure we retry if we couldn't get the page

In inode.c:btrfs_page_exists_in_range(), if we can't get the page
we need to retry. However we weren't retrying because we weren't
setting page to NULL, which makes the while loop exit immediately
and will make us call page_cache_release after exiting the loop
which is incorrect because our page get didn't succeed. This could
also make us return true when we shouldn't.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>