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authorSasha Levin <sasha.levin@oracle.com>2014-06-11 12:00:25 -0400
committerChris Mason <clm@fb.com>2014-06-13 09:52:22 -0700
commitf1e3c289498f26d98b65ddaae0cd892c98a6ce84 (patch)
treec0de1e193aca4b93a6a649d46d7c57c40147a6fc /fs
parent5fbc7c59fd22c5a6531b40b0759624b680a95e52 (diff)
btrfs: prevent RCU warning when dereferencing radix tree slot
Mark the dereference as protected by lock. Not doing so triggers an RCU warning since the radix tree assumed that RCU is in use. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/tests/btrfs-tests.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index a5dcacb5df9c..9626252ee6b4 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -135,7 +135,7 @@ restart:
radix_tree_for_each_slot(slot, &fs_info->buffer_radix, &iter, 0) {
struct extent_buffer *eb;
- eb = radix_tree_deref_slot(slot);
+ eb = radix_tree_deref_slot_protected(slot, &fs_info->buffer_lock);
if (!eb)
continue;
/* Shouldn't happen but that kind of thinking creates CVE's */