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| author | Sasha Levin <sasha.levin@oracle.com> | 2014-06-11 18:00:25 +0200 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-06-13 18:52:22 +0200 |
| commit | f1e3c289498f26d98b65ddaae0cd892c98a6ce84 (patch) | |
| tree | c0de1e193aca4b93a6a649d46d7c57c40147a6fc | |
| parent | Btrfs: fix unfinished readahead thread for raid5/6 degraded mounting (diff) | |
| download | linux-f1e3c289498f26d98b65ddaae0cd892c98a6ce84.tar.xz linux-f1e3c289498f26d98b65ddaae0cd892c98a6ce84.zip | |
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.c | 2 |
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 */ |