Fix reiserfs_file_release()

a) count file openers correctly; i_count use was completely wrong
b) use new mutex for exclusion between final close/open/truncate,
to protect tailpacking logics.  i_mutex use was wrong and resulted
in deadlocks.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 9822fa15118b..1e1ee9056eb6 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -525,6 +525,8 @@ static struct inode *reiserfs_alloc_inode(struct super_block *sb)
             kmem_cache_alloc(reiserfs_inode_cachep, GFP_KERNEL);
         if (!ei)
                 return NULL;
+        atomic_set(&ei->openers, 0);
+        mutex_init(&ei->tailpack);
         return &ei->vfs_inode;
 }