[PATCH] sem2mutex: fs/

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>

3 files changed, 28 insertions, 25 deletions

diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 112ebf8b8dfe..729ac427d359 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -16,6 +16,7 @@
 #include <linux/sunrpc/svc.h>
 #include <linux/lockd/lockd.h>
 #include <linux/lockd/sm_inter.h>
+#include <linux/mutex.h>
 
 
 #define NLMDBG_FACILITY         NLMDBG_HOSTCACHE
@@ -30,7 +31,7 @@
 static struct nlm_host *        nlm_hosts[NLM_HOST_NRHASH];
 static unsigned long            next_gc;
 static int                      nrhosts;
-static DECLARE_MUTEX(nlm_host_sema);
+static DEFINE_MUTEX(nlm_host_mutex);
 
 
 static void                     nlm_gc_hosts(void);
@@ -71,7 +72,7 @@ nlm_lookup_host(int server, struct sockaddr_in *sin,
         hash = NLM_ADDRHASH(sin->sin_addr.s_addr);
 
         /* Lock hash table */
-        down(&nlm_host_sema);
+        mutex_lock(&nlm_host_mutex);
 
         if (time_after_eq(jiffies, next_gc))
                 nlm_gc_hosts();
@@ -91,7 +92,7 @@ nlm_lookup_host(int server, struct sockaddr_in *sin,
                                 nlm_hosts[hash] = host;
                         }
                         nlm_get_host(host);
-                        up(&nlm_host_sema);
+                        mutex_unlock(&nlm_host_mutex);
                         return host;
                 }
         }
@@ -130,7 +131,7 @@ nlm_lookup_host(int server, struct sockaddr_in *sin,
                 next_gc = 0;
 
 nohost:
-        up(&nlm_host_sema);
+        mutex_unlock(&nlm_host_mutex);
         return host;
 }
 
@@ -141,19 +142,19 @@ nlm_find_client(void)
          * and return it
          */
         int hash;
-        down(&nlm_host_sema);
+        mutex_lock(&nlm_host_mutex);
         for (hash = 0 ; hash < NLM_HOST_NRHASH; hash++) {
                 struct nlm_host *host, **hp;
                 for (hp = &nlm_hosts[hash]; (host = *hp) != 0; hp = &host->h_next) {
                         if (host->h_server &&
                             host->h_killed == 0) {
                                 nlm_get_host(host);
-                                up(&nlm_host_sema);
+                                mutex_unlock(&nlm_host_mutex);
                                 return host;
                         }
                 }
         }
-        up(&nlm_host_sema);
+        mutex_unlock(&nlm_host_mutex);
         return NULL;
 }
 
@@ -265,7 +266,7 @@ nlm_shutdown_hosts(void)
         int             i;
 
         dprintk("lockd: shutting down host module\n");
-        down(&nlm_host_sema);
+        mutex_lock(&nlm_host_mutex);
 
         /* First, make all hosts eligible for gc */
         dprintk("lockd: nuking all hosts...\n");
@@ -276,7 +277,7 @@ nlm_shutdown_hosts(void)
 
         /* Then, perform a garbage collection pass */
         nlm_gc_hosts();
-        up(&nlm_host_sema);
+        mutex_unlock(&nlm_host_mutex);
 
         /* complain if any hosts are left */
         if (nrhosts) {
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 5e85bde6c123..fd56c8872f34 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/smp_lock.h>
+#include <linux/mutex.h>
 
 #include <linux/sunrpc/types.h>
 #include <linux/sunrpc/stats.h>
@@ -43,13 +44,13 @@ static struct svc_program	nlmsvc_program;
 struct nlmsvc_binding *         nlmsvc_ops;
 EXPORT_SYMBOL(nlmsvc_ops);
 
-static DECLARE_MUTEX(nlmsvc_sema);
+static DEFINE_MUTEX(nlmsvc_mutex);
 static unsigned int             nlmsvc_users;
 static pid_t                    nlmsvc_pid;
 int                             nlmsvc_grace_period;
 unsigned long                   nlmsvc_timeout;
 
-static DECLARE_MUTEX_LOCKED(lockd_start);
+static DECLARE_COMPLETION(lockd_start_done);
 static DECLARE_WAIT_QUEUE_HEAD(lockd_exit);
 
 /*
@@ -112,7 +113,7 @@ lockd(struct svc_rqst *rqstp)
          * Let our maker know we're running.
          */
         nlmsvc_pid = current->pid;
-        up(&lockd_start);
+        complete(&lockd_start_done);
 
         daemonize("lockd");
 
@@ -215,7 +216,7 @@ lockd_up(void)
         struct svc_serv *       serv;
         int                     error = 0;
 
-        down(&nlmsvc_sema);
+        mutex_lock(&nlmsvc_mutex);
         /*
          * Unconditionally increment the user count ... this is
          * the number of clients who _want_ a lockd process.
@@ -263,7 +264,7 @@ lockd_up(void)
                         "lockd_up: create thread failed, error=%d\n", error);
                 goto destroy_and_out;
         }
-        down(&lockd_start);
+        wait_for_completion(&lockd_start_done);
 
         /*
          * Note: svc_serv structures have an initial use count of 1,
@@ -272,7 +273,7 @@ lockd_up(void)
 destroy_and_out:
         svc_destroy(serv);
 out:
-        up(&nlmsvc_sema);
+        mutex_unlock(&nlmsvc_mutex);
         return error;
 }
 EXPORT_SYMBOL(lockd_up);
@@ -285,7 +286,7 @@ lockd_down(void)
 {
         static int warned;
 
-        down(&nlmsvc_sema);
+        mutex_lock(&nlmsvc_mutex);
         if (nlmsvc_users) {
                 if (--nlmsvc_users)
                         goto out;
@@ -315,7 +316,7 @@ lockd_down(void)
         recalc_sigpending();
         spin_unlock_irq(&current->sighand->siglock);
 out:
-        up(&nlmsvc_sema);
+        mutex_unlock(&nlmsvc_mutex);
 }
 EXPORT_SYMBOL(lockd_down);
 
diff --git a/fs/lockd/svcsubs.c b/fs/lockd/svcsubs.c
index c7a6e3ae44d6..a570e5c8a930 100644
--- a/fs/lockd/svcsubs.c
+++ b/fs/lockd/svcsubs.c
@@ -11,6 +11,7 @@
 #include <linux/string.h>
 #include <linux/time.h>
 #include <linux/in.h>
+#include <linux/mutex.h>
 #include <linux/sunrpc/svc.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/nfsd/nfsfh.h>
@@ -28,7 +29,7 @@
 #define FILE_HASH_BITS          5
 #define FILE_NRHASH             (1<<FILE_HASH_BITS)
 static struct nlm_file *        nlm_files[FILE_NRHASH];
-static DECLARE_MUTEX(nlm_file_sema);
+static DEFINE_MUTEX(nlm_file_mutex);
 
 #ifdef NFSD_DEBUG
 static inline void nlm_debug_print_fh(char *msg, struct nfs_fh *f)
@@ -91,7 +92,7 @@ nlm_lookup_file(struct svc_rqst *rqstp, struct nlm_file **result,
         hash = file_hash(f);
 
         /* Lock file table */
-        down(&nlm_file_sema);
+        mutex_lock(&nlm_file_mutex);
 
         for (file = nlm_files[hash]; file; file = file->f_next)
                 if (!nfs_compare_fh(&file->f_handle, f))
@@ -130,7 +131,7 @@ found:
         nfserr = 0;
 
 out_unlock:
-        up(&nlm_file_sema);
+        mutex_unlock(&nlm_file_mutex);
         return nfserr;
 
 out_free:
@@ -239,14 +240,14 @@ nlm_traverse_files(struct nlm_host *host, int action)
         struct nlm_file *file, **fp;
         int             i;
 
-        down(&nlm_file_sema);
+        mutex_lock(&nlm_file_mutex);
         for (i = 0; i < FILE_NRHASH; i++) {
                 fp = nlm_files + i;
                 while ((file = *fp) != NULL) {
                         /* Traverse locks, blocks and shares of this file
                          * and update file->f_locks count */
                         if (nlm_inspect_file(host, file, action)) {
-                                up(&nlm_file_sema);
+                                mutex_unlock(&nlm_file_mutex);
                                 return 1;
                         }
 
@@ -261,7 +262,7 @@ nlm_traverse_files(struct nlm_host *host, int action)
                         }
                 }
         }
-        up(&nlm_file_sema);
+        mutex_unlock(&nlm_file_mutex);
         return 0;
 }
 
@@ -281,7 +282,7 @@ nlm_release_file(struct nlm_file *file)
                                 file, file->f_count);
 
         /* Lock file table */
-        down(&nlm_file_sema);
+        mutex_lock(&nlm_file_mutex);
 
         /* If there are no more locks etc, delete the file */
         if(--file->f_count == 0) {
@@ -289,7 +290,7 @@ nlm_release_file(struct nlm_file *file)
                         nlm_delete_file(file);
         }
 
-        up(&nlm_file_sema);
+        mutex_unlock(&nlm_file_mutex);
 }
 
 /*