From: David Sterba <dsterba@suse.com>
Date: Wed, 4 Apr 2018 23:19:50 +0000 (+0200)
Subject: btrfs: dev-replace: remove pointless assert in write unlock
X-Git-Tag: v5.4-rc1~2111^2~48
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9b142115ed3593480b813a9331593e9f199da340;p=platform%2Fkernel%2Flinux-rpi.git

btrfs: dev-replace: remove pointless assert in write unlock

The value of blocking_readers is increased only when the lock is taken
for read, no way we can fail the condition with the write lock.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index d1ea76b..2aa48aec 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -982,7 +982,6 @@ again:
 
 void btrfs_dev_replace_write_unlock(struct btrfs_dev_replace *dev_replace)
 {
-	ASSERT(atomic_read(&dev_replace->blocking_readers) == 0);
 	write_unlock(&dev_replace->lock);
 }