lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] sem2mutex: fs/

Browse Source 
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 <mingo@elte.hu>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Cc: Robert Love <rml@tech9.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ingo Molnar
2006-03-26 01:37:12 -08:00
committed by Linus Torvalds
parent e655a250d5
commit 353ab6e97b
11 changed files with 99 additions and 89 deletions
Download Patch File Download Diff File Expand all files Collapse all files

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);