linux/fs/gfs2/daemon.c
Steven Whitehouse 9ac1b4d9b6 GFS2: Move gfs2_recoverd into recovery.c
By moving gfs2_recoverd, we can make an additional function static
and it also leaves only (the already scheduled for removal) gfs2_glockd
in daemon.c.

At the same time the declaration of gfs2_quotad is moved to quota.h
to reflect the new location of gfs2_quotad in a previous patch. Also
the recovery.h and quota.h headers are cleaned up.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2009-01-05 07:39:07 +00:00

62 lines
1.6 KiB
C

/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include <linux/freezer.h>
#include "gfs2.h"
#include "incore.h"
#include "daemon.h"
#include "glock.h"
#include "log.h"
#include "recovery.h"
#include "super.h"
#include "util.h"
/* This uses schedule_timeout() instead of msleep() because it's good for
the daemons to wake up more often than the timeout when unmounting so
the user's unmount doesn't sit there forever.
The kthread functions used to start these daemons block and flush signals. */
/**
* gfs2_glockd - Reclaim unused glock structures
* @sdp: Pointer to GFS2 superblock
*
* One or more of these daemons run, reclaiming glocks on sd_reclaim_list.
* Number of daemons can be set by user, with num_glockd mount option.
*/
int gfs2_glockd(void *data)
{
struct gfs2_sbd *sdp = data;
while (!kthread_should_stop()) {
while (atomic_read(&sdp->sd_reclaim_count))
gfs2_reclaim_glock(sdp);
wait_event_interruptible(sdp->sd_reclaim_wq,
(atomic_read(&sdp->sd_reclaim_count) ||
kthread_should_stop()));
if (freezing(current))
refrigerator();
}
return 0;
}