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authorJes Sorensen <jes@sgi.com>2006-01-09 15:59:24 -0800
committerIngo Molnar <mingo@hera.kernel.org>2006-01-09 15:59:24 -0800
commit1b1dcc1b57a49136f118a0f16367256ff9994a69 (patch)
treeb0b36d4f41d28c9d6514fb309d33c1a084d6309b /fs/binfmt_misc.c
parent794ee1baee1c26be40410233e6c20bceb2b03c08 (diff)
downloadop-kernel-dev-1b1dcc1b57a49136f118a0f16367256ff9994a69.zip
op-kernel-dev-1b1dcc1b57a49136f118a0f16367256ff9994a69.tar.gz
[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>
Diffstat (limited to 'fs/binfmt_misc.c')
-rw-r--r--fs/binfmt_misc.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 2568eb4..9ccc7d8 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;
}
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