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Diffstat (limited to 'fs/nfs/callback.c')
-rw-r--r--fs/nfs/callback.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 99d2cfbce86..90c95adc8c1 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -14,6 +14,7 @@
#include <linux/sunrpc/svc.h>
#include <linux/sunrpc/svcsock.h>
#include <linux/nfs_fs.h>
+#include <linux/mutex.h>
#include <net/inet_sock.h>
@@ -31,7 +32,7 @@ struct nfs_callback_data {
};
static struct nfs_callback_data nfs_callback_info;
-static DECLARE_MUTEX(nfs_callback_sema);
+static DEFINE_MUTEX(nfs_callback_mutex);
static struct svc_program nfs4_callback_program;
unsigned int nfs_callback_set_tcpport;
@@ -95,7 +96,7 @@ int nfs_callback_up(void)
int ret = 0;
lock_kernel();
- down(&nfs_callback_sema);
+ mutex_lock(&nfs_callback_mutex);
if (nfs_callback_info.users++ || nfs_callback_info.pid != 0)
goto out;
init_completion(&nfs_callback_info.started);
@@ -121,7 +122,7 @@ int nfs_callback_up(void)
nfs_callback_info.serv = serv;
wait_for_completion(&nfs_callback_info.started);
out:
- up(&nfs_callback_sema);
+ mutex_unlock(&nfs_callback_mutex);
unlock_kernel();
return ret;
out_destroy:
@@ -139,7 +140,7 @@ int nfs_callback_down(void)
int ret = 0;
lock_kernel();
- down(&nfs_callback_sema);
+ mutex_lock(&nfs_callback_mutex);
nfs_callback_info.users--;
do {
if (nfs_callback_info.users != 0 || nfs_callback_info.pid == 0)
@@ -147,7 +148,7 @@ int nfs_callback_down(void)
if (kill_proc(nfs_callback_info.pid, SIGKILL, 1) < 0)
break;
} while (wait_for_completion_timeout(&nfs_callback_info.stopped, 5*HZ) == 0);
- up(&nfs_callback_sema);
+ mutex_unlock(&nfs_callback_mutex);
unlock_kernel();
return ret;
}