obj-$(CONFIG_GFS2_FS) += gfs2.o
-gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
+gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \
glops.o inode.o log.o lops.o locking.o main.o meta_io.o \
mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
ops_fstype.o ops_inode.o ops_super.o quota.o \
+++ /dev/null
-/*
- * 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;
-}
-
+++ /dev/null
-/*
- * 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.
- */
-
-#ifndef __DAEMON_DOT_H__
-#define __DAEMON_DOT_H__
-
-int gfs2_glockd(void *data);
-
-#endif /* __DAEMON_DOT_H__ */
static DECLARE_RWSEM(gfs2_umount_flush_sem);
static struct dentry *gfs2_root;
-static struct task_struct *scand_process;
-static unsigned int scand_secs = 5;
static struct workqueue_struct *glock_workqueue;
+static LIST_HEAD(lru_list);
+static atomic_t lru_count = ATOMIC_INIT(0);
+static spinlock_t lru_lock = SPIN_LOCK_UNLOCKED;
#define GFS2_GL_HASH_SHIFT 15
#define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT)
atomic_inc(&gl->gl_ref);
}
+/**
+ * gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
+ * @gl: the glock
+ *
+ */
+
+static void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
+{
+ spin_lock(&lru_lock);
+ if (list_empty(&gl->gl_lru) && gl->gl_state != LM_ST_UNLOCKED) {
+ list_add_tail(&gl->gl_lru, &lru_list);
+ atomic_inc(&lru_count);
+ }
+ spin_unlock(&lru_lock);
+}
+
/**
* gfs2_glock_put() - Decrement reference count on glock
* @gl: The glock to put
if (atomic_dec_and_test(&gl->gl_ref)) {
hlist_del(&gl->gl_list);
write_unlock(gl_lock_addr(gl->gl_hash));
+ spin_lock(&lru_lock);
+ if (!list_empty(&gl->gl_lru)) {
+ list_del_init(&gl->gl_lru);
+ atomic_dec(&lru_count);
+ }
+ spin_unlock(&lru_lock);
GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_UNLOCKED);
- GLOCK_BUG_ON(gl, !list_empty(&gl->gl_reclaim));
+ GLOCK_BUG_ON(gl, !list_empty(&gl->gl_lru));
GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
glock_free(gl);
rv = 1;
goto out;
}
write_unlock(gl_lock_addr(gl->gl_hash));
+ /* 1 for being hashed, 1 for having state != LM_ST_UNLOCKED */
+ if (atomic_read(&gl->gl_ref) == 2)
+ gfs2_glock_schedule_for_reclaim(gl);
out:
return rv;
}
*/
static void handle_callback(struct gfs2_glock *gl, unsigned int state,
- int remote, unsigned long delay)
+ unsigned long delay)
{
int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE;
if (gl->gl_demote_state == LM_ST_EXCLUSIVE) {
gl->gl_demote_state = state;
gl->gl_demote_time = jiffies;
- if (remote && gl->gl_ops->go_type == LM_TYPE_IOPEN &&
- gl->gl_object)
- gfs2_glock_schedule_for_reclaim(gl);
} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
gl->gl_demote_state != state) {
gl->gl_demote_state = LM_ST_UNLOCKED;
spin_lock(&gl->gl_spin);
if (gh->gh_flags & GL_NOCACHE)
- handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+ handle_callback(gl, LM_ST_UNLOCKED, 0);
list_del_init(&gh->gh_list);
if (find_first_holder(gl) == NULL) {
delay = gl->gl_ops->go_min_hold_time;
spin_lock(&gl->gl_spin);
- handle_callback(gl, state, 1, delay);
+ handle_callback(gl, state, delay);
spin_unlock(&gl->gl_spin);
if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
gfs2_glock_put(gl);
* Returns: 1 if it's ok
*/
-static int demote_ok(struct gfs2_glock *gl)
+static int demote_ok(const struct gfs2_glock *gl)
{
const struct gfs2_glock_operations *glops = gl->gl_ops;
- int demote = 1;
-
- if (test_bit(GLF_STICKY, &gl->gl_flags))
- demote = 0;
- else if (glops->go_demote_ok)
- demote = glops->go_demote_ok(gl);
-
- return demote;
-}
-/**
- * gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
- * @gl: the glock
- *
- */
-
-void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
-{
- struct gfs2_sbd *sdp = gl->gl_sbd;
-
- spin_lock(&sdp->sd_reclaim_lock);
- if (list_empty(&gl->gl_reclaim)) {
- gfs2_glock_hold(gl);
- list_add(&gl->gl_reclaim, &sdp->sd_reclaim_list);
- atomic_inc(&sdp->sd_reclaim_count);
- spin_unlock(&sdp->sd_reclaim_lock);
- wake_up(&sdp->sd_reclaim_wq);
- } else
- spin_unlock(&sdp->sd_reclaim_lock);
+ if (gl->gl_state == LM_ST_UNLOCKED)
+ return 0;
+ if (!list_empty(&gl->gl_holders))
+ return 0;
+ if (glops->go_demote_ok)
+ return glops->go_demote_ok(gl);
+ return 1;
}
-/**
- * gfs2_reclaim_glock - process the next glock on the filesystem's reclaim list
- * @sdp: the filesystem
- *
- * Called from gfs2_glockd() glock reclaim daemon, or when promoting a
- * different glock and we notice that there are a lot of glocks in the
- * reclaim list.
- *
- */
-void gfs2_reclaim_glock(struct gfs2_sbd *sdp)
+static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
{
struct gfs2_glock *gl;
- int done_callback = 0;
+ int may_demote;
+ int nr_skipped = 0;
+ int got_ref = 0;
+ LIST_HEAD(skipped);
- spin_lock(&sdp->sd_reclaim_lock);
- if (list_empty(&sdp->sd_reclaim_list)) {
- spin_unlock(&sdp->sd_reclaim_lock);
- return;
- }
- gl = list_entry(sdp->sd_reclaim_list.next,
- struct gfs2_glock, gl_reclaim);
- list_del_init(&gl->gl_reclaim);
- spin_unlock(&sdp->sd_reclaim_lock);
+ if (nr == 0)
+ goto out;
- atomic_dec(&sdp->sd_reclaim_count);
- atomic_inc(&sdp->sd_reclaimed);
+ if (!(gfp_mask & __GFP_FS))
+ return -1;
- spin_lock(&gl->gl_spin);
- if (find_first_holder(gl) == NULL &&
- gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl)) {
- handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
- done_callback = 1;
+ spin_lock(&lru_lock);
+ while(nr && !list_empty(&lru_list)) {
+ gl = list_entry(lru_list.next, struct gfs2_glock, gl_lru);
+ list_del_init(&gl->gl_lru);
+ atomic_dec(&lru_count);
+
+ /* Test for being demotable */
+ if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
+ gfs2_glock_hold(gl);
+ got_ref = 1;
+ spin_unlock(&lru_lock);
+ spin_lock(&gl->gl_spin);
+ may_demote = demote_ok(gl);
+ spin_unlock(&gl->gl_spin);
+ clear_bit(GLF_LOCK, &gl->gl_flags);
+ if (may_demote) {
+ handle_callback(gl, LM_ST_UNLOCKED, 0);
+ nr--;
+ if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
+ gfs2_glock_put(gl);
+ }
+ spin_lock(&lru_lock);
+ if (may_demote)
+ continue;
+ }
+ if (list_empty(&gl->gl_lru) &&
+ (atomic_read(&gl->gl_ref) <= (2 + got_ref))) {
+ nr_skipped++;
+ list_add(&gl->gl_lru, &skipped);
+ }
+ if (got_ref) {
+ spin_unlock(&lru_lock);
+ gfs2_glock_put(gl);
+ spin_lock(&lru_lock);
+ got_ref = 0;
+ }
}
- spin_unlock(&gl->gl_spin);
- if (!done_callback ||
- queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
- gfs2_glock_put(gl);
+ list_splice(&skipped, &lru_list);
+ atomic_add(nr_skipped, &lru_count);
+ spin_unlock(&lru_lock);
+out:
+ return (atomic_read(&lru_count) / 100) * sysctl_vfs_cache_pressure;
}
+static struct shrinker glock_shrinker = {
+ .shrink = gfs2_shrink_glock_memory,
+ .seeks = DEFAULT_SEEKS,
+};
+
/**
* examine_bucket - Call a function for glock in a hash bucket
* @examiner: the function
return has_entries;
}
-/**
- * scan_glock - look at a glock and see if we can reclaim it
- * @gl: the glock to look at
- *
- */
-
-static void scan_glock(struct gfs2_glock *gl)
-{
- if (gl->gl_ops == &gfs2_inode_glops && gl->gl_object)
- return;
- if (test_bit(GLF_LOCK, &gl->gl_flags))
- return;
-
- spin_lock(&gl->gl_spin);
- if (find_first_holder(gl) == NULL &&
- gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
- gfs2_glock_schedule_for_reclaim(gl);
- spin_unlock(&gl->gl_spin);
-}
-
/**
* clear_glock - look at a glock and see if we can free it from glock cache
* @gl: the glock to look at
static void clear_glock(struct gfs2_glock *gl)
{
- struct gfs2_sbd *sdp = gl->gl_sbd;
- int released;
-
- spin_lock(&sdp->sd_reclaim_lock);
- if (!list_empty(&gl->gl_reclaim)) {
- list_del_init(&gl->gl_reclaim);
- atomic_dec(&sdp->sd_reclaim_count);
- spin_unlock(&sdp->sd_reclaim_lock);
- released = gfs2_glock_put(gl);
- gfs2_assert(sdp, !released);
- } else {
- spin_unlock(&sdp->sd_reclaim_lock);
+ spin_lock(&lru_lock);
+ if (!list_empty(&gl->gl_lru)) {
+ list_del_init(&gl->gl_lru);
+ atomic_dec(&lru_count);
}
+ spin_unlock(&lru_lock);
spin_lock(&gl->gl_spin);
if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
- handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
+ handle_callback(gl, LM_ST_UNLOCKED, 0);
spin_unlock(&gl->gl_spin);
gfs2_glock_hold(gl);
if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
char *p = buf;
if (test_bit(GLF_LOCK, gflags))
*p++ = 'l';
- if (test_bit(GLF_STICKY, gflags))
- *p++ = 's';
if (test_bit(GLF_DEMOTE, gflags))
*p++ = 'D';
if (test_bit(GLF_PENDING_DEMOTE, gflags))
return error;
}
-/**
- * gfs2_scand - Look for cached glocks and inodes to toss from memory
- * @sdp: Pointer to GFS2 superblock
- *
- * One of these daemons runs, finding candidates to add to sd_reclaim_list.
- * See gfs2_glockd()
- */
-
-static int gfs2_scand(void *data)
-{
- unsigned x;
- unsigned delay;
-
- while (!kthread_should_stop()) {
- for (x = 0; x < GFS2_GL_HASH_SIZE; x++)
- examine_bucket(scan_glock, NULL, x);
- if (freezing(current))
- refrigerator();
- delay = scand_secs;
- if (delay < 1)
- delay = 1;
- schedule_timeout_interruptible(delay * HZ);
- }
-
- return 0;
-}
-
-
int __init gfs2_glock_init(void)
{
}
#endif
- scand_process = kthread_run(gfs2_scand, NULL, "gfs2_scand");
- if (IS_ERR(scand_process))
- return PTR_ERR(scand_process);
-
glock_workqueue = create_workqueue("glock_workqueue");
- if (IS_ERR(glock_workqueue)) {
- kthread_stop(scand_process);
+ if (IS_ERR(glock_workqueue))
return PTR_ERR(glock_workqueue);
- }
+
+ register_shrinker(&glock_shrinker);
return 0;
}
void gfs2_glock_exit(void)
{
+ unregister_shrinker(&glock_shrinker);
destroy_workqueue(glock_workqueue);
- kthread_stop(scand_process);
}
-module_param(scand_secs, uint, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(scand_secs, "The number of seconds between scand runs");
-
static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
{
struct gfs2_glock *gl;
void gfs2_lvb_unhold(struct gfs2_glock *gl);
void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
-void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
void gfs2_glock_finish_truncate(struct gfs2_inode *ip);
* Returns: 1 if it's ok
*/
-static int inode_go_demote_ok(struct gfs2_glock *gl)
+static int inode_go_demote_ok(const struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
- int demote = 0;
-
- if (!gl->gl_object && !gl->gl_aspace->i_mapping->nrpages)
- demote = 1;
- else if (!sdp->sd_args.ar_localcaching &&
- time_after_eq(jiffies, gl->gl_stamp +
- gfs2_tune_get(sdp, gt_demote_secs) * HZ))
- demote = 1;
-
- return demote;
+ if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
+ return 0;
+ return 1;
}
/**
* Returns: 1 if it's ok
*/
-static int rgrp_go_demote_ok(struct gfs2_glock *gl)
+static int rgrp_go_demote_ok(const struct gfs2_glock *gl)
{
return !gl->gl_aspace->i_mapping->nrpages;
}
return 0;
}
+/**
+ * trans_go_demote_ok
+ * @gl: the glock
+ *
+ * Always returns 0
+ */
+
+static int trans_go_demote_ok(const struct gfs2_glock *gl)
+{
+ return 0;
+}
+
/**
* quota_go_demote_ok - Check to see if it's ok to unlock a quota glock
* @gl: the glock
* Returns: 1 if it's ok
*/
-static int quota_go_demote_ok(struct gfs2_glock *gl)
+static int quota_go_demote_ok(const struct gfs2_glock *gl)
{
return !atomic_read(&gl->gl_lvb_count);
}
const struct gfs2_glock_operations gfs2_trans_glops = {
.go_xmote_th = trans_go_sync,
.go_xmote_bh = trans_go_xmote_bh,
+ .go_demote_ok = trans_go_demote_ok,
.go_type = LM_TYPE_NONDISK,
};
void (*go_xmote_th) (struct gfs2_glock *gl);
int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
void (*go_inval) (struct gfs2_glock *gl, int flags);
- int (*go_demote_ok) (struct gfs2_glock *gl);
+ int (*go_demote_ok) (const struct gfs2_glock *gl);
int (*go_lock) (struct gfs2_holder *gh);
void (*go_unlock) (struct gfs2_holder *gh);
int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
enum {
GLF_LOCK = 1,
- GLF_STICKY = 2,
GLF_DEMOTE = 3,
GLF_PENDING_DEMOTE = 4,
GLF_DEMOTE_IN_PROGRESS = 5,
unsigned long gl_tchange;
void *gl_object;
- struct list_head gl_reclaim;
+ struct list_head gl_lru;
struct gfs2_sbd *gl_sbd;
struct gfs2_tune {
spinlock_t gt_spin;
- unsigned int gt_demote_secs; /* Cache retention for unheld glock */
unsigned int gt_incore_log_blocks;
unsigned int gt_log_flush_secs;
/* Lock Stuff */
struct lm_lockstruct sd_lockstruct;
- struct list_head sd_reclaim_list;
- spinlock_t sd_reclaim_lock;
- wait_queue_head_t sd_reclaim_wq;
- atomic_t sd_reclaim_count;
struct gfs2_holder sd_live_gh;
struct gfs2_glock *sd_rename_gl;
struct gfs2_glock *sd_trans_gl;
struct task_struct *sd_recoverd_process;
struct task_struct *sd_logd_process;
struct task_struct *sd_quotad_process;
- struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
- unsigned int sd_glockd_num;
/* Quota stuff */
struct mutex sd_freeze_lock;
unsigned int sd_freeze_count;
- /* Counters */
-
- atomic_t sd_reclaimed;
-
char sd_fsname[GFS2_FSNAME_LEN];
char sd_table_name[GFS2_FSNAME_LEN];
char sd_proto_name[GFS2_FSNAME_LEN];
gfs2_free_di(rgd, ip);
gfs2_trans_end(sdp);
- clear_bit(GLF_STICKY, &ip->i_gl->gl_flags);
out_rg_gunlock:
gfs2_glock_dq_uninit(&al->al_rgd_gh);
INIT_LIST_HEAD(&gl->gl_holders);
gl->gl_lvb = NULL;
atomic_set(&gl->gl_lvb_count, 0);
- INIT_LIST_HEAD(&gl->gl_reclaim);
+ INIT_LIST_HEAD(&gl->gl_lru);
INIT_LIST_HEAD(&gl->gl_ail_list);
atomic_set(&gl->gl_ail_count, 0);
}
Opt_debug,
Opt_nodebug,
Opt_upgrade,
- Opt_num_glockd,
Opt_acl,
Opt_noacl,
Opt_quota_off,
{Opt_debug, "debug"},
{Opt_nodebug, "nodebug"},
{Opt_upgrade, "upgrade"},
- {Opt_num_glockd, "num_glockd=%d"},
{Opt_acl, "acl"},
{Opt_noacl, "noacl"},
{Opt_quota_off, "quota=off"},
spin_unlock(&gfs2_sys_margs_lock);
/* Set some defaults */
- args->ar_num_glockd = GFS2_GLOCKD_DEFAULT;
args->ar_quota = GFS2_QUOTA_DEFAULT;
args->ar_data = GFS2_DATA_DEFAULT;
}
process them */
for (options = data; (o = strsep(&options, ",")); ) {
- int token, option;
+ int token;
substring_t tmp[MAX_OPT_ARGS];
if (!*o)
goto cant_remount;
args->ar_upgrade = 1;
break;
- case Opt_num_glockd:
- if ((error = match_int(&tmp[0], &option))) {
- fs_info(sdp, "problem getting num_glockd\n");
- goto out_error;
- }
-
- if (remount && option != args->ar_num_glockd)
- goto cant_remount;
- if (!option || option > GFS2_GLOCKD_MAX) {
- fs_info(sdp, "0 < num_glockd <= %u (not %u)\n",
- GFS2_GLOCKD_MAX, option);
- error = -EINVAL;
- goto out_error;
- }
- args->ar_num_glockd = option;
- break;
case Opt_acl:
args->ar_posix_acl = 1;
sdp->sd_vfs->s_flags |= MS_POSIXACL;
#include "gfs2.h"
#include "incore.h"
#include "bmap.h"
-#include "daemon.h"
#include "glock.h"
#include "glops.h"
#include "inode.h"
{
spin_lock_init(>->gt_spin);
- gt->gt_demote_secs = 300;
gt->gt_incore_log_blocks = 1024;
gt->gt_log_flush_secs = 60;
gt->gt_recoverd_secs = 60;
gfs2_tune_init(&sdp->sd_tune);
- INIT_LIST_HEAD(&sdp->sd_reclaim_list);
- spin_lock_init(&sdp->sd_reclaim_lock);
- init_waitqueue_head(&sdp->sd_reclaim_wq);
-
mutex_init(&sdp->sd_inum_mutex);
spin_lock_init(&sdp->sd_statfs_spin);
static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
int undo)
{
- struct task_struct *p;
int error = 0;
if (undo)
goto fail_trans;
- for (sdp->sd_glockd_num = 0;
- sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd;
- sdp->sd_glockd_num++) {
- p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd");
- error = IS_ERR(p);
- if (error) {
- fs_err(sdp, "can't start glockd thread: %d\n", error);
- goto fail;
- }
- sdp->sd_glockd_process[sdp->sd_glockd_num] = p;
- }
-
error = gfs2_glock_nq_num(sdp,
GFS2_MOUNT_LOCK, &gfs2_nondisk_glops,
LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE,
fs_err(sdp, "can't create transaction glock: %d\n", error);
goto fail_rename;
}
- set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags);
return 0;
fail_mount:
gfs2_glock_dq_uninit(mount_gh);
fail:
- while (sdp->sd_glockd_num--)
- kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
-
return error;
}
return PTR_ERR(sdp->sd_jindex);
}
ip = GFS2_I(sdp->sd_jindex);
- set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
/* Load in the journal index special file */
goto fail_statfs;
}
ip = GFS2_I(sdp->sd_rindex);
- set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
sdp->sd_rindex_uptodate = 0;
/* Read in the quota inode */
kthread_stop(sdp->sd_quotad_process);
kthread_stop(sdp->sd_logd_process);
kthread_stop(sdp->sd_recoverd_process);
- while (sdp->sd_glockd_num--)
- kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
if (!(sb->s_flags & MS_RDONLY)) {
error = gfs2_make_fs_ro(sdp);
*/
if (test_bit(GIF_USER, &ip->i_flags)) {
ip->i_gl->gl_object = NULL;
- gfs2_glock_schedule_for_reclaim(ip->i_gl);
gfs2_glock_put(ip->i_gl);
ip->i_gl = NULL;
if (ip->i_iopen_gh.gh_gl) {
seq_printf(s, ",debug");
if (args->ar_upgrade)
seq_printf(s, ",upgrade");
- if (args->ar_num_glockd != GFS2_GLOCKD_DEFAULT)
- seq_printf(s, ",num_glockd=%u", args->ar_num_glockd);
if (args->ar_posix_acl)
seq_printf(s, ",acl");
if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
ARGS_ATTR(localflocks, "%d\n");
ARGS_ATTR(debug, "%d\n");
ARGS_ATTR(upgrade, "%d\n");
-ARGS_ATTR(num_glockd, "%u\n");
ARGS_ATTR(posix_acl, "%d\n");
ARGS_ATTR(quota, "%u\n");
ARGS_ATTR(suiddir, "%d\n");
&args_attr_localflocks.attr,
&args_attr_debug.attr,
&args_attr_upgrade.attr,
- &args_attr_num_glockd.attr,
&args_attr_posix_acl.attr,
&args_attr_quota.attr,
&args_attr_suiddir.attr,
NULL,
};
-/*
- * display counters from superblock
- */
-
-struct counters_attr {
- struct attribute attr;
- ssize_t (*show)(struct gfs2_sbd *, char *);
-};
-
-#define COUNTERS_ATTR(name, fmt) \
-static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
-{ \
- return snprintf(buf, PAGE_SIZE, fmt, \
- (unsigned int)atomic_read(&sdp->sd_##name)); \
-} \
-static struct counters_attr counters_attr_##name = __ATTR_RO(name)
-
-COUNTERS_ATTR(reclaimed, "%u\n");
-
-static struct attribute *counters_attrs[] = {
- &counters_attr_reclaimed.attr,
- NULL,
-};
-
/*
* get and set struct gfs2_tune fields
*/
} \
TUNE_ATTR_2(name, name##_store)
-TUNE_ATTR(demote_secs, 0);
TUNE_ATTR(incore_log_blocks, 0);
TUNE_ATTR(log_flush_secs, 0);
TUNE_ATTR(quota_warn_period, 0);
TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
static struct attribute *tune_attrs[] = {
- &tune_attr_demote_secs.attr,
&tune_attr_incore_log_blocks.attr,
&tune_attr_log_flush_secs.attr,
&tune_attr_quota_warn_period.attr,
.attrs = lockstruct_attrs,
};
-static struct attribute_group counters_group = {
- .name = "counters",
- .attrs = counters_attrs,
-};
-
static struct attribute_group args_group = {
.name = "args",
.attrs = args_attrs,
if (error)
goto fail_reg;
- error = sysfs_create_group(&sdp->sd_kobj, &counters_group);
- if (error)
- goto fail_lockstruct;
-
error = sysfs_create_group(&sdp->sd_kobj, &args_group);
if (error)
- goto fail_counters;
+ goto fail_lockstruct;
error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
if (error)
fail_args:
sysfs_remove_group(&sdp->sd_kobj, &args_group);
-fail_counters:
- sysfs_remove_group(&sdp->sd_kobj, &counters_group);
fail_lockstruct:
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
fail_reg:
{
sysfs_remove_group(&sdp->sd_kobj, &tune_group);
sysfs_remove_group(&sdp->sd_kobj, &args_group);
- sysfs_remove_group(&sdp->sd_kobj, &counters_group);
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
kobject_put(&sdp->sd_kobj);
}
projects / linux-2.6-omap-h63xx.git / commitdiff