X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fjfs%2Fjfs_logmgr.c;h=0b348b13b55153772298e410bc4cf29ed849e47b;hb=5b3030e39049212c975665cdb3eeabcfaf7c94ca;hp=d27bac6acaa346118b39bb02517987130b5cdcfb;hpb=3cb904caa97f5c193df21b8cdf780a826564baff;p=pandora-kernel.git

diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index d27bac6acaa3..0b348b13b551 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -64,6 +64,7 @@
 #include <linux/interrupt.h>
 #include <linux/smp_lock.h>
 #include <linux/completion.h>
+#include <linux/kthread.h>
 #include <linux/buffer_head.h>		/* for sync_blockdev() */
 #include <linux/bio.h>
 #include <linux/suspend.h>
@@ -81,15 +82,14 @@
  */
 static struct lbuf *log_redrive_list;
 static DEFINE_SPINLOCK(log_redrive_lock);
-DECLARE_WAIT_QUEUE_HEAD(jfs_IO_thread_wait);
 
 
 /*
  *	log read/write serialization (per log)
  */
-#define LOG_LOCK_INIT(log)	init_MUTEX(&(log)->loglock)
-#define LOG_LOCK(log)		down(&((log)->loglock))
-#define LOG_UNLOCK(log)		up(&((log)->loglock))
+#define LOG_LOCK_INIT(log)	mutex_init(&(log)->loglock)
+#define LOG_LOCK(log)		mutex_lock(&((log)->loglock))
+#define LOG_UNLOCK(log)		mutex_unlock(&((log)->loglock))
 
 
 /*
@@ -1105,11 +1105,10 @@ int lmLogOpen(struct super_block *sb)
 		}
 	}
 
-	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL))) {
+	if (!(log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL))) {
 		up(&jfs_log_sem);
 		return -ENOMEM;
 	}
-	memset(log, 0, sizeof(struct jfs_log));
 	INIT_LIST_HEAD(&log->sb_list);
 	init_waitqueue_head(&log->syncwait);
 
@@ -1181,9 +1180,8 @@ static int open_inline_log(struct super_block *sb)
 	struct jfs_log *log;
 	int rc;
 
-	if (!(log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL)))
+	if (!(log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL)))
 		return -ENOMEM;
-	memset(log, 0, sizeof(struct jfs_log));
 	INIT_LIST_HEAD(&log->sb_list);
 	init_waitqueue_head(&log->syncwait);
 
@@ -1216,12 +1214,11 @@ static int open_dummy_log(struct super_block *sb)
 
 	down(&jfs_log_sem);
 	if (!dummy_log) {
-		dummy_log = kmalloc(sizeof(struct jfs_log), GFP_KERNEL);
+		dummy_log = kzalloc(sizeof(struct jfs_log), GFP_KERNEL);
 		if (!dummy_log) {
 			up(&jfs_log_sem);
 			return -ENOMEM;
 		}
-		memset(dummy_log, 0, sizeof(struct jfs_log));
 		INIT_LIST_HEAD(&dummy_log->sb_list);
 		init_waitqueue_head(&dummy_log->syncwait);
 		dummy_log->no_integrity = 1;
@@ -1980,7 +1977,7 @@ static inline void lbmRedrive(struct lbuf *bp)
 	log_redrive_list = bp;
 	spin_unlock_irqrestore(&log_redrive_lock, flags);
 
-	wake_up(&jfs_IO_thread_wait);
+	wake_up_process(jfsIOthread);
 }
 
 
@@ -2347,13 +2344,7 @@ int jfsIOWait(void *arg)
 {
 	struct lbuf *bp;
 
-	daemonize("jfsIO");
-
-	complete(&jfsIOwait);
-
 	do {
-		DECLARE_WAITQUEUE(wq, current);
-
 		spin_lock_irq(&log_redrive_lock);
 		while ((bp = log_redrive_list) != 0) {
 			log_redrive_list = bp->l_redrive_next;
@@ -2362,21 +2353,19 @@ int jfsIOWait(void *arg)
 			lbmStartIO(bp);
 			spin_lock_irq(&log_redrive_lock);
 		}
+		spin_unlock_irq(&log_redrive_lock);
+
 		if (freezing(current)) {
-			spin_unlock_irq(&log_redrive_lock);
 			refrigerator();
 		} else {
-			add_wait_queue(&jfs_IO_thread_wait, &wq);
 			set_current_state(TASK_INTERRUPTIBLE);
-			spin_unlock_irq(&log_redrive_lock);
 			schedule();
 			current->state = TASK_RUNNING;
-			remove_wait_queue(&jfs_IO_thread_wait, &wq);
 		}
-	} while (!jfs_stop_threads);
+	} while (!kthread_should_stop());
 
 	jfs_info("jfsIOWait being killed!");
-	complete_and_exit(&jfsIOwait, 0);
+	return 0;
 }
 
 /*