[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/relayfs/inode.c b/fs/relayfs/inode.c
index 7b7f2cb5f0e1..383523011aad 100644
--- a/fs/relayfs/inode.c
+++ b/fs/relayfs/inode.c
@@ -109,7 +109,7 @@ static struct dentry *relayfs_create_entry(const char *name,
         }
 
         parent = dget(parent);
-        down(&parent->d_inode->i_sem);
+        mutex_lock(&parent->d_inode->i_mutex);
         d = lookup_one_len(name, parent, strlen(name));
         if (IS_ERR(d)) {
                 d = NULL;
@@ -139,7 +139,7 @@ release_mount:
         simple_release_fs(&relayfs_mount, &relayfs_mount_count);
 
 exit:
-        up(&parent->d_inode->i_sem);
+        mutex_unlock(&parent->d_inode->i_mutex);
         dput(parent);
         return d;
 }
@@ -204,7 +204,7 @@ int relayfs_remove(struct dentry *dentry)
                 return -EINVAL;
 
         parent = dget(parent);
-        down(&parent->d_inode->i_sem);
+        mutex_lock(&parent->d_inode->i_mutex);
         if (dentry->d_inode) {
                 if (S_ISDIR(dentry->d_inode->i_mode))
                         error = simple_rmdir(parent->d_inode, dentry);
@@ -215,7 +215,7 @@ int relayfs_remove(struct dentry *dentry)
         }
         if (!error)
                 dput(dentry);
-        up(&parent->d_inode->i_sem);
+        mutex_unlock(&parent->d_inode->i_mutex);
         dput(parent);
 
         if (!error)
@@ -476,7 +476,7 @@ static ssize_t relay_file_read(struct file *filp,
         ssize_t ret = 0;
         void *from;
 
-        down(&inode->i_sem);
+        mutex_lock(&inode->i_mutex);
         if(!relay_file_read_avail(buf, *ppos))
                 goto out;
 
@@ -494,7 +494,7 @@ static ssize_t relay_file_read(struct file *filp,
         relay_file_read_consume(buf, read_start, count);
         *ppos = relay_file_read_end_pos(buf, read_start, count);
 out:
-        up(&inode->i_sem);
+        mutex_unlock(&inode->i_mutex);
         return ret;
 }