diff options
Diffstat (limited to 'fs/gfs2/daemon.c')
| -rw-r--r-- | fs/gfs2/daemon.c | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/fs/gfs2/daemon.c b/fs/gfs2/daemon.c deleted file mode 100644 index e51991947d2c..000000000000 --- a/fs/gfs2/daemon.c +++ /dev/null | |||
| @@ -1,136 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. | ||
| 3 | * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. | ||
| 4 | * | ||
| 5 | * This copyrighted material is made available to anyone wishing to use, | ||
| 6 | * modify, copy, or redistribute it subject to the terms and conditions | ||
| 7 | * of the GNU General Public License version 2. | ||
| 8 | */ | ||
| 9 | |||
| 10 | #include <linux/sched.h> | ||
| 11 | #include <linux/slab.h> | ||
| 12 | #include <linux/spinlock.h> | ||
| 13 | #include <linux/completion.h> | ||
| 14 | #include <linux/buffer_head.h> | ||
| 15 | #include <linux/kthread.h> | ||
| 16 | #include <linux/delay.h> | ||
| 17 | #include <linux/gfs2_ondisk.h> | ||
| 18 | #include <linux/lm_interface.h> | ||
| 19 | #include <linux/freezer.h> | ||
| 20 | |||
| 21 | #include "gfs2.h" | ||
| 22 | #include "incore.h" | ||
| 23 | #include "daemon.h" | ||
| 24 | #include "glock.h" | ||
| 25 | #include "log.h" | ||
| 26 | #include "quota.h" | ||
| 27 | #include "recovery.h" | ||
| 28 | #include "super.h" | ||
| 29 | #include "util.h" | ||
| 30 | |||
| 31 | /* This uses schedule_timeout() instead of msleep() because it's good for | ||
| 32 | the daemons to wake up more often than the timeout when unmounting so | ||
| 33 | the user's unmount doesn't sit there forever. | ||
| 34 | |||
| 35 | The kthread functions used to start these daemons block and flush signals. */ | ||
| 36 | |||
| 37 | /** | ||
| 38 | * gfs2_glockd - Reclaim unused glock structures | ||
| 39 | * @sdp: Pointer to GFS2 superblock | ||
| 40 | * | ||
| 41 | * One or more of these daemons run, reclaiming glocks on sd_reclaim_list. | ||
| 42 | * Number of daemons can be set by user, with num_glockd mount option. | ||
| 43 | */ | ||
| 44 | |||
| 45 | int gfs2_glockd(void *data) | ||
| 46 | { | ||
| 47 | struct gfs2_sbd *sdp = data; | ||
| 48 | |||
| 49 | while (!kthread_should_stop()) { | ||
| 50 | while (atomic_read(&sdp->sd_reclaim_count)) | ||
| 51 | gfs2_reclaim_glock(sdp); | ||
| 52 | |||
| 53 | wait_event_interruptible(sdp->sd_reclaim_wq, | ||
| 54 | (atomic_read(&sdp->sd_reclaim_count) || | ||
| 55 | kthread_should_stop())); | ||
| 56 | if (freezing(current)) | ||
| 57 | refrigerator(); | ||
| 58 | } | ||
| 59 | |||
| 60 | return 0; | ||
| 61 | } | ||
| 62 | |||
| 63 | /** | ||
| 64 | * gfs2_recoverd - Recover dead machine's journals | ||
| 65 | * @sdp: Pointer to GFS2 superblock | ||
| 66 | * | ||
| 67 | */ | ||
| 68 | |||
| 69 | int gfs2_recoverd(void *data) | ||
| 70 | { | ||
| 71 | struct gfs2_sbd *sdp = data; | ||
| 72 | unsigned long t; | ||
| 73 | |||
| 74 | while (!kthread_should_stop()) { | ||
| 75 | gfs2_check_journals(sdp); | ||
| 76 | t = gfs2_tune_get(sdp, gt_recoverd_secs) * HZ; | ||
| 77 | if (freezing(current)) | ||
| 78 | refrigerator(); | ||
| 79 | schedule_timeout_interruptible(t); | ||
| 80 | } | ||
| 81 | |||
| 82 | return 0; | ||
| 83 | } | ||
| 84 | |||
| 85 | /** | ||
| 86 | * gfs2_quotad - Write cached quota changes into the quota file | ||
| 87 | * @sdp: Pointer to GFS2 superblock | ||
| 88 | * | ||
| 89 | */ | ||
| 90 | |||
| 91 | int gfs2_quotad(void *data) | ||
| 92 | { | ||
| 93 | struct gfs2_sbd *sdp = data; | ||
| 94 | unsigned long t; | ||
| 95 | int error; | ||
| 96 | |||
| 97 | while (!kthread_should_stop()) { | ||
| 98 | /* Update the master statfs file */ | ||
| 99 | |||
| 100 | t = sdp->sd_statfs_sync_time + | ||
| 101 | gfs2_tune_get(sdp, gt_statfs_quantum) * HZ; | ||
| 102 | |||
| 103 | if (time_after_eq(jiffies, t)) { | ||
| 104 | error = gfs2_statfs_sync(sdp); | ||
| 105 | if (error && | ||
| 106 | error != -EROFS && | ||
| 107 | !test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) | ||
| 108 | fs_err(sdp, "quotad: (1) error=%d\n", error); | ||
| 109 | sdp->sd_statfs_sync_time = jiffies; | ||
| 110 | } | ||
| 111 | |||
| 112 | /* Update quota file */ | ||
| 113 | |||
| 114 | t = sdp->sd_quota_sync_time + | ||
| 115 | gfs2_tune_get(sdp, gt_quota_quantum) * HZ; | ||
| 116 | |||
| 117 | if (time_after_eq(jiffies, t)) { | ||
| 118 | error = gfs2_quota_sync(sdp); | ||
| 119 | if (error && | ||
| 120 | error != -EROFS && | ||
| 121 | !test_bit(SDF_SHUTDOWN, &sdp->sd_flags)) | ||
| 122 | fs_err(sdp, "quotad: (2) error=%d\n", error); | ||
| 123 | sdp->sd_quota_sync_time = jiffies; | ||
| 124 | } | ||
| 125 | |||
| 126 | gfs2_quota_scan(sdp); | ||
| 127 | |||
| 128 | t = gfs2_tune_get(sdp, gt_quotad_secs) * HZ; | ||
| 129 | if (freezing(current)) | ||
| 130 | refrigerator(); | ||
| 131 | schedule_timeout_interruptible(t); | ||
| 132 | } | ||
| 133 | |||
| 134 | return 0; | ||
| 135 | } | ||
| 136 | |||
