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Subject[PATCH 04/13] fs/unionfs/: Several small cleanups in unionfs_interpose
Date
1) No need to lock the inode - lockdep was complaining about potential
circular dependency

2) No need to use temporary variable for iunique() inode number

3) Removed unneeded comment

Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
---
fs/unionfs/main.c | 11 ++---------
1 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/unionfs/main.c b/fs/unionfs/main.c
index bd64242..a37916d 100644
--- a/fs/unionfs/main.c
+++ b/fs/unionfs/main.c
@@ -66,19 +66,14 @@ int unionfs_interpose(struct dentry *dentry, struct super_block *sb, int flag)
err = -ENOMEM;
goto out;
}
- mutex_lock(&inode->i_mutex);
} else {
- ino_t ino;
/* get unique inode number for unionfs */
- ino = iunique(sb, UNIONFS_ROOT_INO);
-
- inode = iget(sb, ino);
+ inode = iget(sb, iunique(sb, UNIONFS_ROOT_INO));
if (!inode) {
- err = -EACCES; /* should be impossible??? */
+ err = -EACCES;
goto out;
}

- mutex_lock(&inode->i_mutex);
if (atomic_read(&inode->i_count) > 1)
goto skip;
}
@@ -147,8 +142,6 @@ skip:
BUG();
}

- mutex_unlock(&inode->i_mutex);
-
out:
return err;
}
--
1.5.0.2.260.g2eb065
-
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