[PATCH] reiserfs: Relax reiserfs_xattr_set_handle() while acquiring xattr locks

[Frederic Weisbecker]

Fix remaining xattr locks acquired in reiserfs_xattr_set_handle()
while we are holding the reiserfs lock to avoid lock inversions.

Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Christian Kujau <lists@xxxxxxxxxxxxxxx>
Cc: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Cc: Chris Mason <chris.mason@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
---
 fs/reiserfs/xattr.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 35826d2..b91428e 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -560,8 +560,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th,
 			.ia_size = buffer_size,
 			.ia_valid = ATTR_SIZE | ATTR_CTIME,
 		};
+
+		reiserfs_write_unlock(inode->i_sb);
 		mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR);
 		down_write(&dentry->d_inode->i_alloc_sem);
+		reiserfs_write_lock(inode->i_sb);
+
 		err = reiserfs_setattr(dentry, &newattrs);
 		up_write(&dentry->d_inode->i_alloc_sem);
 		mutex_unlock(&dentry->d_inode->i_mutex);
-- 
1.6.2.3

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