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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
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>
-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 */

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