diff options
| -rw-r--r-- | fs/gfs2/Makefile | 2 | ||||
| -rw-r--r-- | fs/gfs2/daemon.c | 61 | ||||
| -rw-r--r-- | fs/gfs2/daemon.h | 15 | ||||
| -rw-r--r-- | fs/gfs2/glock.c | 248 | ||||
| -rw-r--r-- | fs/gfs2/glock.h | 1 | ||||
| -rw-r--r-- | fs/gfs2/glops.c | 32 | ||||
| -rw-r--r-- | fs/gfs2/incore.h | 16 | ||||
| -rw-r--r-- | fs/gfs2/inode.c | 1 | ||||
| -rw-r--r-- | fs/gfs2/main.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/mount.c | 21 | ||||
| -rw-r--r-- | fs/gfs2/ops_fstype.c | 25 | ||||
| -rw-r--r-- | fs/gfs2/ops_super.c | 5 | ||||
| -rw-r--r-- | fs/gfs2/sys.c | 42 |
13 files changed, 130 insertions, 341 deletions
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile index ec65851..c1b4ec6a 100644 --- a/fs/gfs2/Makefile +++ b/fs/gfs2/Makefile @@ -1,5 +1,5 @@ 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 \ diff --git a/fs/gfs2/daemon.c b/fs/gfs2/daemon.c deleted file mode 100644 index 2662df0..0000000 --- a/fs/gfs2/daemon.c +++ /dev/null @@ -1,61 +0,0 @@ -/* - * 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; -} - diff --git a/fs/gfs2/daemon.h b/fs/gfs2/daemon.h deleted file mode 100644 index 5258954..0000000 --- a/fs/gfs2/daemon.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * 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__ */ diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 4ddf3bd..07ffc81 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -62,9 +62,10 @@ static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int 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) @@ -175,6 +176,22 @@ static void gfs2_glock_hold(struct gfs2_glock *gl) } /** + * 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 * @@ -188,14 +205,23 @@ int gfs2_glock_put(struct gfs2_glock *gl) 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; } @@ -837,7 +863,7 @@ static void wait_on_demote(struct gfs2_glock *gl) */ 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; @@ -845,9 +871,6 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state, 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; @@ -1017,7 +1040,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh) 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) { @@ -1288,7 +1311,7 @@ static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name, 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); @@ -1357,80 +1380,83 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data) * 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 @@ -1476,26 +1502,6 @@ out: } /** - * 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 * @@ -1503,23 +1509,16 @@ static void scan_glock(struct gfs2_glock *gl) 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) @@ -1656,8 +1655,6 @@ static const char *gflags2str(char *buf, const unsigned long *gflags) 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)) @@ -1776,34 +1773,6 @@ static int gfs2_dump_lockstate(struct gfs2_sbd *sdp) 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) { @@ -1817,28 +1786,21 @@ 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; diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h index 13a64ee..543ec7e 100644 --- a/fs/gfs2/glock.h +++ b/fs/gfs2/glock.h @@ -129,7 +129,6 @@ int gfs2_lvb_hold(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); diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index 8ebff8e..8522d3a 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -201,19 +201,12 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags) * 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; } /** @@ -284,7 +277,7 @@ static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl) * 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; } @@ -386,13 +379,25 @@ static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh) } /** + * 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); } @@ -426,6 +431,7 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = { 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, }; diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h index dd7d0f8..608849d 100644 --- a/fs/gfs2/incore.h +++ b/fs/gfs2/incore.h @@ -125,7 +125,7 @@ struct gfs2_glock_operations { 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); @@ -155,7 +155,6 @@ struct gfs2_holder { enum { GLF_LOCK = 1, - GLF_STICKY = 2, GLF_DEMOTE = 3, GLF_PENDING_DEMOTE = 4, GLF_DEMOTE_IN_PROGRESS = 5, @@ -190,7 +189,7 @@ struct gfs2_glock { unsigned long gl_tchange; void *gl_object; - struct list_head gl_reclaim; + struct list_head gl_lru; struct gfs2_sbd *gl_sbd; @@ -397,7 +396,6 @@ struct gfs2_args { 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; @@ -478,10 +476,6 @@ struct gfs2_sbd { /* 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; @@ -541,8 +535,6 @@ struct gfs2_sbd { 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 */ @@ -615,10 +607,6 @@ struct gfs2_sbd { 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]; diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c index 97d3ce65..3b87c18 100644 --- a/fs/gfs2/inode.c +++ b/fs/gfs2/inode.c @@ -386,7 +386,6 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip) 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); diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c index cf39295..7cacfde 100644 --- a/fs/gfs2/main.c +++ b/fs/gfs2/main.c @@ -43,7 +43,7 @@ static void gfs2_init_glock_once(void *foo) 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); } diff --git a/fs/gfs2/mount.c b/fs/gfs2/mount.c index f96eb90..8c0f16e 100644 --- a/fs/gfs2/mount.c +++ b/fs/gfs2/mount.c @@ -32,7 +32,6 @@ enum { Opt_debug, Opt_nodebug, Opt_upgrade, - Opt_num_glockd, Opt_acl, Opt_noacl, Opt_quota_off, @@ -57,7 +56,6 @@ static const match_table_t tokens = { {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"}, @@ -96,7 +94,6 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount) 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; } @@ -105,7 +102,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount) process them */ for (options = data; (o = strsep(&options, ",")); ) { - int token, option; + int token; substring_t tmp[MAX_OPT_ARGS]; if (!*o) @@ -196,22 +193,6 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount) 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; diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index d159e7e..fc300ea 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -22,7 +22,6 @@ #include "gfs2.h" #include "incore.h" #include "bmap.h" -#include "daemon.h" #include "glock.h" #include "glops.h" #include "inode.h" @@ -56,7 +55,6 @@ static void gfs2_tune_init(struct gfs2_tune *gt) { 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; @@ -88,10 +86,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb) 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); @@ -443,24 +437,11 @@ out: 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, @@ -493,7 +474,6 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh, 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; @@ -506,9 +486,6 @@ fail_live: 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; } @@ -681,7 +658,6 @@ static int init_journal(struct gfs2_sbd *sdp, int undo) 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 */ @@ -832,7 +808,6 @@ static int init_inodes(struct gfs2_sbd *sdp, int undo) 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 */ diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c index ad36af2..29f8a5c 100644 --- a/fs/gfs2/ops_super.c +++ b/fs/gfs2/ops_super.c @@ -142,8 +142,6 @@ static void gfs2_put_super(struct super_block *sb) 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); @@ -369,7 +367,6 @@ static void gfs2_clear_inode(struct inode *inode) */ 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) { @@ -422,8 +419,6 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt) 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) { diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c index 59e36fd..67ba5b7 100644 --- a/fs/gfs2/sys.c +++ b/fs/gfs2/sys.c @@ -263,7 +263,6 @@ ARGS_ATTR(localcaching, "%d\n"); 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"); @@ -279,7 +278,6 @@ static struct attribute *args_attrs[] = { &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, @@ -288,30 +286,6 @@ static struct attribute *args_attrs[] = { }; /* - * 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 */ @@ -393,7 +367,6 @@ static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ } \ 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); @@ -411,7 +384,6 @@ TUNE_ATTR_DAEMON(logd_secs, logd_process); 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, @@ -435,11 +407,6 @@ static struct attribute_group lockstruct_group = { .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, @@ -464,13 +431,9 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 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) @@ -481,8 +444,6 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 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: @@ -496,7 +457,6 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp) { 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); } |
