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[XFS] Switch kernel thread handling to the kthread_ API

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SGI-PV: 942063
SGI-Modid: xfs-linux:xfs-kern:198388a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Christoph Hellwig
2005-09-05 08:34:18 +10:00
committed by Nathan Scott
parent 2f92658751
commit 4df08c5258
4 changed files with 17 additions and 46 deletions
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24
fs/xfs/linux-2.6/xfs_buf.c
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@ -54,6 +54,7 @@
#include <linux/percpu.h>
#include <linux/blkdev.h>
#include <linux/hash.h>
#include <linux/kthread.h>
#include "xfs_linux.h"
@ -1742,9 +1743,7 @@ pagebuf_runall_queues(
}
/* Defines for pagebuf daemon */
STATIC DECLARE_COMPLETION(xfsbufd_done);
STATIC struct task_struct *xfsbufd_task;
STATIC int xfsbufd_active;
STATIC int xfsbufd_force_flush;
STATIC int xfsbufd_force_sleep;
@ -1770,14 +1769,8 @@ xfsbufd(
xfs_buftarg_t *target;
xfs_buf_t *pb, *n;
/* Set up the thread */
daemonize("xfsbufd");
current->flags |= PF_MEMALLOC;
xfsbufd_task = current;
xfsbufd_active = 1;
barrier();
INIT_LIST_HEAD(&tmp);
do {
if (unlikely(freezing(current))) {
@ -1825,9 +1818,9 @@ xfsbufd(
purge_addresses();
xfsbufd_force_flush = 0;
} while (xfsbufd_active);
} while (!kthread_should_stop());
complete_and_exit(&xfsbufd_done, 0);
return 0;
}
/*
@ -1910,9 +1903,11 @@ xfs_buf_daemons_start(void)
if (!xfsdatad_workqueue)
goto out_destroy_xfslogd_workqueue;
error = kernel_thread(xfsbufd, NULL, CLONE_FS|CLONE_FILES);
if (error < 0)
xfsbufd_task = kthread_run(xfsbufd, NULL, "xfsbufd");
if (IS_ERR(xfsbufd_task)) {
error = PTR_ERR(xfsbufd_task);
goto out_destroy_xfsdatad_workqueue;
}
return 0;
out_destroy_xfsdatad_workqueue:
@ -1929,10 +1924,7 @@ xfs_buf_daemons_start(void)
STATIC void
xfs_buf_daemons_stop(void)
{
xfsbufd_active = 0;
barrier();
wait_for_completion(&xfsbufd_done);
kthread_stop(xfsbufd_task);
destroy_workqueue(xfslogd_workqueue);
destroy_workqueue(xfsdatad_workqueue);
}