[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, 6 insertions, 6 deletions

diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 2568eb41cb3a..9ccc7d8275b8 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -588,11 +588,11 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
                 case 2: set_bit(Enabled, &e->flags);
                         break;
                 case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
-                        down(&root->d_inode->i_sem);
+                        mutex_lock(&root->d_inode->i_mutex);
 
                         kill_node(e);
 
-                        up(&root->d_inode->i_sem);
+                        mutex_unlock(&root->d_inode->i_mutex);
                         dput(root);
                         break;
                 default: return res;
@@ -622,7 +622,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
                 return PTR_ERR(e);
 
         root = dget(sb->s_root);
-        down(&root->d_inode->i_sem);
+        mutex_lock(&root->d_inode->i_mutex);
         dentry = lookup_one_len(e->name, root, strlen(e->name));
         err = PTR_ERR(dentry);
         if (IS_ERR(dentry))
@@ -658,7 +658,7 @@ static ssize_t bm_register_write(struct file *file, const char __user *buffer,
 out2:
         dput(dentry);
 out:
-        up(&root->d_inode->i_sem);
+        mutex_unlock(&root->d_inode->i_mutex);
         dput(root);
 
         if (err) {
@@ -703,12 +703,12 @@ static ssize_t bm_status_write(struct file * file, const char __user * buffer,
                 case 1: enabled = 0; break;
                 case 2: enabled = 1; break;
                 case 3: root = dget(file->f_vfsmnt->mnt_sb->s_root);
-                        down(&root->d_inode->i_sem);
+                        mutex_lock(&root->d_inode->i_mutex);
 
                         while (!list_empty(&entries))
                                 kill_node(list_entry(entries.next, Node, list));
 
-                        up(&root->d_inode->i_sem);
+                        mutex_unlock(&root->d_inode->i_mutex);
                         dput(root);
                 default: return res;
         }