[PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem

This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index f2be44d4491f..bfb8a230bac9 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -130,7 +130,7 @@ static struct dentry *get_node(int num)
 {
         char s[12];
         struct dentry *root = devpts_root;
-        down(&root->d_inode->i_sem);
+        mutex_lock(&root->d_inode->i_mutex);
         return lookup_one_len(s, root, sprintf(s, "%d", num));
 }
 
@@ -161,7 +161,7 @@ int devpts_pty_new(struct tty_struct *tty)
         if (!IS_ERR(dentry) && !dentry->d_inode)
                 d_instantiate(dentry, inode);
 
-        up(&devpts_root->d_inode->i_sem);
+        mutex_unlock(&devpts_root->d_inode->i_mutex);
 
         return 0;
 }
@@ -178,7 +178,7 @@ struct tty_struct *devpts_get_tty(int number)
                 dput(dentry);
         }
 
-        up(&devpts_root->d_inode->i_sem);
+        mutex_unlock(&devpts_root->d_inode->i_mutex);
 
         return tty;
 }
@@ -196,7 +196,7 @@ void devpts_pty_kill(int number)
                 }
                 dput(dentry);
         }
-        up(&devpts_root->d_inode->i_sem);
+        mutex_unlock(&devpts_root->d_inode->i_mutex);
 }
 
 static int __init init_devpts_fs(void)