diff options
Diffstat (limited to 'fs/nfs/callback.c')
| -rw-r--r-- | fs/nfs/callback.c | 11 |
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; } |