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Btrfs: don't release invalid page in btrfs_page_exists_in_range()
authorFilipe Manana <fdmanana@gmail.com>
Thu, 5 Jun 2014 12:22:26 +0000 (13:22 +0100)
committerChris Mason <clm@fb.com>
Tue, 10 Jun 2014 00:21:14 +0000 (17:21 -0700)
commit6fdef6d43cb897bcbbed13786e8cc8cccabc442a
treeaf3ecf8a8ffe78f736ac7257946f2174f2262664tree | snapshot (tar.gz zip)
parent809f9016253dbfec00f71e98e11c4bcbf01b6c26commit | diff
Btrfs: don't release invalid page in btrfs_page_exists_in_range()

In inode.c:btrfs_page_exists_in_range(), if the page we got from
the radix tree is an exception entry, which can't be retried, we
exit the loop with a non-NULL page and then call page_cache_release
against it, which is not ok since it's not a valid page. 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>
fs/btrfs/inode.c diff | blob | blame | history