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

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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>
This commit is contained in:
Jes Sorensen 2006-01-09 15:59:24 -08:00 • committed by Ingo Molnar
parent 794ee1baee
commit 1b1dcc1b57
113 changed files with 563 additions and 573 deletions
Download patch file Download diff file Expand all files Collapse all files

12
fs/binfmt_misc.c
View file

@ -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;
}