X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fjffs2%2Fbackground.c;h=6eb3daebd56354ca4973093c9d5966c7e148ae0a;hb=refs%2Fheads%2Fvserver;hp=ac59ee35da656fd788a6f0938d2c1ef418eae068;hpb=9bf4aaab3e101692164d49b7ca357651eb691cb6;p=linux-2.6.git

diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index ac59ee35d..6eb3daebd 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -3,11 +3,11 @@
  *
  * Copyright (C) 2001-2003 Red Hat, Inc.
  *
- * Created by David Woodhouse <dwmw2@redhat.com>
+ * Created by David Woodhouse <dwmw2@infradead.org>
  *
  * For licensing information, see the file 'LICENCE' in this directory.
  *
- * $Id: background.c,v 1.49 2004/07/13 08:56:40 dwmw2 Exp $
+ * $Id: background.c,v 1.54 2005/05/20 21:37:12 gleixner Exp $
  *
  */
 
@@ -15,7 +15,8 @@
 #include <linux/jffs2.h>
 #include <linux/mtd/mtd.h>
 #include <linux/completion.h>
-#include <linux/suspend.h>
+#include <linux/sched.h>
+#include <linux/freezer.h>
 #include "nodelist.h"
 
 
@@ -35,10 +36,9 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
 	pid_t pid;
 	int ret = 0;
 
-	if (c->gc_task)
-		BUG();
+	BUG_ON(c->gc_task);
 
-	init_MUTEX_LOCKED(&c->gc_thread_start);
+	init_completion(&c->gc_thread_start);
 	init_completion(&c->gc_thread_exit);
 
 	pid = kernel_thread(jffs2_garbage_collect_thread, c, CLONE_FS|CLONE_FILES);
@@ -49,21 +49,24 @@ int jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c)
 	} else {
 		/* Wait for it... */
 		D1(printk(KERN_DEBUG "JFFS2: Garbage collect thread is pid %d\n", pid));
-		down(&c->gc_thread_start);
+		wait_for_completion(&c->gc_thread_start);
 	}
- 
+
 	return ret;
 }
 
 void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c)
 {
+	int wait = 0;
 	spin_lock(&c->erase_completion_lock);
 	if (c->gc_task) {
 		D1(printk(KERN_DEBUG "jffs2: Killing GC task %d\n", c->gc_task->pid));
 		send_sig(SIGKILL, c->gc_task, 1);
+		wait = 1;
 	}
 	spin_unlock(&c->erase_completion_lock);
-	wait_for_completion(&c->gc_thread_exit);
+	if (wait)
+		wait_for_completion(&c->gc_thread_exit);
 }
 
 static int jffs2_garbage_collect_thread(void *_c)
@@ -76,7 +79,7 @@ static int jffs2_garbage_collect_thread(void *_c)
 	allow_signal(SIGCONT);
 
 	c->gc_task = current;
-	up(&c->gc_thread_start);
+	complete(&c->gc_thread_start);
 
 	set_user_nice(current, 10);
 
@@ -93,16 +96,12 @@ static int jffs2_garbage_collect_thread(void *_c)
 			schedule();
 		}
 
-		if (current->flags & PF_FREEZE) {
-			refrigerator(0);
-			/* refrigerator() should recalc sigpending for us
-			   but doesn't. No matter - allow_signal() will. */
+		if (try_to_freeze())
 			continue;
-		}
 
 		cond_resched();
 
-		/* Put_super will send a SIGKILL and then wait on the sem. 
+		/* Put_super will send a SIGKILL and then wait on the sem.
 		 */
 		while (signal_pending(current)) {
 			siginfo_t info;