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authorIngo Molnar <mingo@elte.hu>2006-03-23 03:00:41 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 07:38:13 -0800
commit1d5599e397dcc7c2300d200e66dad326d7dbac38 (patch)
treebeaa29f23c35375bbff4b5b256e96dd3b13c5728
parent[PATCH] sem2mutex: JFFS (diff)
downloadlinux-dev-1d5599e397dcc7c2300d200e66dad326d7dbac38.tar.xz
linux-dev-1d5599e397dcc7c2300d200e66dad326d7dbac38.zip
[PATCH] sem2mutex: autofs4 wq_sem
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> Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--fs/autofs4/autofs_i.h3
-rw-r--r--fs/autofs4/inode.c2
-rw-r--r--fs/autofs4/waitq.c16
3 files changed, 11 insertions, 10 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 385bed09b0d8..f54c5b21f876 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -13,6 +13,7 @@
/* Internal header file for autofs */
#include <linux/auto_fs4.h>
+#include <linux/mutex.h>
#include <linux/list.h>
/* This is the range of ioctl() numbers we claim as ours */
@@ -102,7 +103,7 @@ struct autofs_sb_info {
int reghost_enabled;
int needs_reghost;
struct super_block *sb;
- struct semaphore wq_sem;
+ struct mutex wq_mutex;
spinlock_t fs_lock;
struct autofs_wait_queue *queues; /* Wait queue pointer */
};
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index 2d3082854a29..1ad98d48e550 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -269,7 +269,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
sbi->sb = s;
sbi->version = 0;
sbi->sub_version = 0;
- init_MUTEX(&sbi->wq_sem);
+ mutex_init(&sbi->wq_mutex);
spin_lock_init(&sbi->fs_lock);
sbi->queues = NULL;
s->s_blocksize = 1024;
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 394ff36ef8f1..be78e9378c03 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -178,7 +178,7 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
return -ENOENT;
}
- if (down_interruptible(&sbi->wq_sem)) {
+ if (mutex_lock_interruptible(&sbi->wq_mutex)) {
kfree(name);
return -EINTR;
}
@@ -194,7 +194,7 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
/* Can't wait for an expire if there's no mount */
if (notify == NFY_NONE && !d_mountpoint(dentry)) {
kfree(name);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -ENOENT;
}
@@ -202,7 +202,7 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
if ( !wq ) {
kfree(name);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -ENOMEM;
}
@@ -218,10 +218,10 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
wq->status = -EINTR; /* Status return if interrupted */
atomic_set(&wq->wait_ctr, 2);
atomic_set(&wq->notified, 1);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
} else {
atomic_inc(&wq->wait_ctr);
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
kfree(name);
DPRINTK("existing wait id = 0x%08lx, name = %.*s, nfy=%d",
(unsigned long) wq->wait_queue_token, wq->len, wq->name, notify);
@@ -282,19 +282,19 @@ int autofs4_wait_release(struct autofs_sb_info *sbi, autofs_wqt_t wait_queue_tok
{
struct autofs_wait_queue *wq, **wql;
- down(&sbi->wq_sem);
+ mutex_lock(&sbi->wq_mutex);
for ( wql = &sbi->queues ; (wq = *wql) != 0 ; wql = &wq->next ) {
if ( wq->wait_queue_token == wait_queue_token )
break;
}
if ( !wq ) {
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
return -EINVAL;
}
*wql = wq->next; /* Unlink from chain */
- up(&sbi->wq_sem);
+ mutex_unlock(&sbi->wq_mutex);
kfree(wq->name);
wq->name = NULL; /* Do not wait on this queue */