commit f6ffe6bd1ad25d1597d241ad4a74a8b3c6e94b65
Author: Erez Zadok <[EMAIL PROTECTED](none)>
Date:   Sun Apr 15 17:37:40 2007 -0400

    cleanup: rename prefix our version of double_lock_dentry with "unionfs_"
    
    To avoid potential confusion with the VFS function of the same name (and
    also confusion with ctags), rename our special version of double_lock_dentry
    to unionfs_double_lock_dentry.

diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c
index 
c175b1c5dc03d461fc8552c91c4e208a258b1c15..2f0876da5735fd721c25c66f0bb74dc74b2f7ebf
 100644
--- a/fs/unionfs/inode.c
+++ b/fs/unionfs/inode.c
@@ -155,7 +155,7 @@ static int unionfs_link(struct dentry *o
        BUG_ON(!is_valid_dentry(new_dentry));
        BUG_ON(!is_valid_dentry(old_dentry));
 
-       double_lock_dentry(new_dentry, old_dentry);
+       unionfs_double_lock_dentry(new_dentry, old_dentry);
 
        hidden_new_dentry = unionfs_lower_dentry(new_dentry);
 
diff --git a/fs/unionfs/rename.c b/fs/unionfs/rename.c
index 
92ffe1140d1efaeef4c187da58b5b32093e56dcf..d1ebe256755dd0d7d5d928e778055e56b1aa29f4
 100644
--- a/fs/unionfs/rename.c
+++ b/fs/unionfs/rename.c
@@ -328,7 +328,7 @@ int unionfs_rename(struct inode *old_dir
        BUG_ON(!is_valid_dentry(old_dentry));
        BUG_ON(!is_valid_dentry(new_dentry));
 
-       double_lock_dentry(old_dentry, new_dentry);
+       unionfs_double_lock_dentry(old_dentry, new_dentry);
 
        if (!S_ISDIR(old_dentry->d_inode->i_mode))
                err = unionfs_partial_lookup(old_dentry);
diff --git a/fs/unionfs/union.h b/fs/unionfs/union.h
index 
edda95bf83ae99fb2b9563b007431c34b2de0ad9..425a732b6dfa3f902ed5488e4bec7d0d4af70d96
 100644
--- a/fs/unionfs/union.h
+++ b/fs/unionfs/union.h
@@ -253,7 +253,8 @@ #define unionfs_read_unlock(sb)      up_read
 #define unionfs_write_lock(sb)  down_write(&UNIONFS_SB(sb)->rwsem)
 #define unionfs_write_unlock(sb) up_write(&UNIONFS_SB(sb)->rwsem)
 
-static inline void double_lock_dentry(struct dentry *d1, struct dentry *d2)
+static inline void unionfs_double_lock_dentry(struct dentry *d1,
+                                             struct dentry *d2)
 {
        if (d2 < d1) {
                struct dentry *tmp = d1;
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