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JFS: Use the kthread_ API

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Use the kthread_ API instead of opencoding lots of hairy code for kernel
thread creation and teardown.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
This commit is contained in:
Christoph Hellwig
2006-02-15 12:49:04 -06:00
committed by Dave Kleikamp
parent 4837c672fd
commit 91dbb4deb3
4 changed files with 38 additions and 72 deletions
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20
fs/jfs/jfs_logmgr.c
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@ -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>
@ -81,7 +82,6 @@
*/
static struct lbuf *log_redrive_list;
static DEFINE_SPINLOCK(log_redrive_lock);
DECLARE_WAIT_QUEUE_HEAD(jfs_IO_thread_wait);
/*
@ -1980,7 +1980,7 @@ 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 +2347,7 @@ 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 +2356,19 @@ 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;
}
/*