[PATCH 08/21] Unionfs: Rename Unionfs's double_lock_dentry to avoid confusion

["Josef 'Jeff' Sipek" <jsipek@cs.sunysb.edu>]

From: Erez Zadok <ezk@cs.sunysb.edu>

To avoid potential confusion with a VFS function, rename our version of
double_lock_dentry to unionfs_double_lock_dentry.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
---
 fs/unionfs/inode.c  |    2 +-
 fs/unionfs/rename.c |    2 +-
 fs/unionfs/union.h  |    3 ++-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c
index c54b290..627c2a7 100644
--- a/fs/unionfs/inode.c
+++ b/fs/unionfs/inode.c
@@ -265,7 +265,7 @@ static int unionfs_link(struct dentry *old_dentry, struct inode *dir,
 	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 231866e..0e1e71a 100644
--- a/fs/unionfs/rename.c
+++ b/fs/unionfs/rename.c
@@ -400,7 +400,7 @@ int unionfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	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 0ce3a27..fee4f88 100644
--- a/fs/unionfs/union.h
+++ b/fs/unionfs/union.h
@@ -223,7 +223,8 @@ static inline off_t rdstate2offset(struct unionfs_dir_state *buf)
 #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;
-- 
1.5.2.rc1.165.gaf9b

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