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[PATCH] sem2mutex: fs/

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Semaphore to mutex conversion.

The conversion was generated via scripts, and the result was validated
automatically via a script as well.

Signed-off-by: Ingo Molnar <[email protected]>
Cc: Eric Van Hensbergen <[email protected]>
Cc: Robert Love <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Neil Brown <[email protected]>
Cc: Trond Myklebust <[email protected]>
Cc: Dave Kleikamp <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Ingo Molnar 2006-03-26 01:37:12 -08:00 • committed by Linus Torvalds
commit 353ab6e97b
11 changed files with 99 additions and 89 deletions
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19
fs/dcookies.c
View file

@ -23,6 +23,7 @@
#include <linux/mm.h>
#include <linux/errno.h>
#include <linux/dcookies.h>
#include <linux/mutex.h>
#include <asm/uaccess.h>
/* The dcookies are allocated from a kmem_cache and
@ -36,7 +37,7 @@ struct dcookie_struct {
};
static LIST_HEAD(dcookie_users);
static DECLARE_MUTEX(dcookie_sem);
static DEFINE_MUTEX(dcookie_mutex);
static kmem_cache_t * dcookie_cache;
static struct list_head * dcookie_hashtable;
static size_t hash_size;
@ -114,7 +115,7 @@ int get_dcookie(struct dentry * dentry, struct vfsmount * vfsmnt,
int err = 0;
struct dcookie_struct * dcs;
down(&dcookie_sem);
mutex_lock(&dcookie_mutex);
if (!is_live()) {
err = -EINVAL;
@ -134,7 +135,7 @@ int get_dcookie(struct dentry * dentry, struct vfsmount * vfsmnt,
*cookie = dcookie_value(dcs);
out:
up(&dcookie_sem);
mutex_unlock(&dcookie_mutex);
return err;
}
@ -157,7 +158,7 @@ asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user * buf, size_t len)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
down(&dcookie_sem);
mutex_lock(&dcookie_mutex);
if (!is_live()) {
err = -EINVAL;
@ -192,7 +193,7 @@ asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user * buf, size_t len)
out_free:
kfree(kbuf);
out:
up(&dcookie_sem);
mutex_unlock(&dcookie_mutex);
return err;
}
@ -290,7 +291,7 @@ struct dcookie_user * dcookie_register(void)
{
struct dcookie_user * user;
down(&dcookie_sem);
mutex_lock(&dcookie_mutex);
user = kmalloc(sizeof(struct dcookie_user), GFP_KERNEL);
if (!user)
@ -302,7 +303,7 @@ struct dcookie_user * dcookie_register(void)
list_add(&user->next, &dcookie_users);
out:
up(&dcookie_sem);
mutex_unlock(&dcookie_mutex);
return user;
out_free:
kfree(user);
@ -313,7 +314,7 @@ out_free:
void dcookie_unregister(struct dcookie_user * user)
{
down(&dcookie_sem);
mutex_lock(&dcookie_mutex);
list_del(&user->next);
kfree(user);
@ -321,7 +322,7 @@ void dcookie_unregister(struct dcookie_user * user)
if (!is_live())
dcookie_exit();
up(&dcookie_sem);
mutex_unlock(&dcookie_mutex);
}
EXPORT_SYMBOL_GPL(dcookie_register);