From: chandan <chandan@linux.vnet.ibm.com>
Date: Thu, 15 Jan 2015 06:52:03 +0000 (+0530)
Subject: Btrfs: insert_new_root: Fix lock type of the extent buffer.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=95449a1626fb6b643b576b9fbafed02793627577;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

Btrfs: insert_new_root: Fix lock type of the extent buffer.

btrfs_alloc_tree_block() returns an extent buffer on which a blocked lock has
been taken. Hence assign the appropriate value to path->locks[level].

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index fdd8fb4c6075..993642199326 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -3380,7 +3380,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
 	add_root_to_dirty_list(root);
 	extent_buffer_get(c);
 	path->nodes[level] = c;
-	path->locks[level] = BTRFS_WRITE_LOCK;
+	path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING;
 	path->slots[level] = 0;
 	return 0;
 }