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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
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12
fs/relayfs/inode.c
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@@ -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;
}