From: Steven Whitehouse <swhiteho@redhat.com>
Subject: [RHEL5.1] [GFS2] Fix bz 235349. Clean up of glock code
Date: Wed, 18 Apr 2007 14:29:24 +0100
Bugzilla: 235349
Message-Id: <1176902965.1636.301.camel@quoit.chygwyn.com>
Changelog: [GFS2] Clean up of glock code
Hi,
The following patch is a combination of upstream patches which fixes a
variety of issues with the glock code in GFS2. It is needed in order to
increase scalability of the code as well as making a base upon which
other bug fixes can be layered. Shortly I'll be sending a fix for bz
224480 which depends upon this patch.
This has been extensively tested in the upstream kernel.
Steve.
diff -Nru linux-rhel-base/fs/gfs2/dir.c linux-2.6.18.noarch/fs/gfs2/dir.c
--- linux-rhel-base/fs/gfs2/dir.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/dir.c 2007-04-18 14:02:51.000000000 +0100
@@ -1200,12 +1200,11 @@
*/
static int do_filldir_main(struct gfs2_inode *dip, u64 *offset,
- void *opaque, gfs2_filldir_t filldir,
+ void *opaque, filldir_t filldir,
const struct gfs2_dirent **darr, u32 entries,
int *copied)
{
const struct gfs2_dirent *dent, *dent_next;
- struct gfs2_inum_host inum;
u64 off, off_next;
unsigned int x, y;
int run = 0;
@@ -1242,11 +1241,9 @@
*offset = off;
}
- gfs2_inum_in(&inum, (char *)&dent->de_inum);
-
error = filldir(opaque, (const char *)(dent + 1),
be16_to_cpu(dent->de_name_len),
- off, &inum,
+ off, be64_to_cpu(dent->de_inum.no_addr),
be16_to_cpu(dent->de_type));
if (error)
return 1;
@@ -1264,8 +1261,8 @@
}
static int gfs2_dir_read_leaf(struct inode *inode, u64 *offset, void *opaque,
- gfs2_filldir_t filldir, int *copied,
- unsigned *depth, u64 leaf_no)
+ filldir_t filldir, int *copied, unsigned *depth,
+ u64 leaf_no)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct buffer_head *bh;
@@ -1345,7 +1342,7 @@
*/
static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
- gfs2_filldir_t filldir)
+ filldir_t filldir)
{
struct gfs2_inode *dip = GFS2_I(inode);
struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -1404,7 +1401,7 @@
}
int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
- gfs2_filldir_t filldir)
+ filldir_t filldir)
{
struct gfs2_inode *dip = GFS2_I(inode);
struct dirent_gather g;
diff -Nru linux-rhel-base/fs/gfs2/dir.h linux-2.6.18.noarch/fs/gfs2/dir.h
--- linux-rhel-base/fs/gfs2/dir.h 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/dir.h 2007-04-18 14:02:51.000000000 +0100
@@ -16,30 +16,13 @@
struct gfs2_inode;
struct gfs2_inum;
-/**
- * gfs2_filldir_t - Report a directory entry to the caller of gfs2_dir_read()
- * @opaque: opaque data used by the function
- * @name: the name of the directory entry
- * @length: the length of the name
- * @offset: the entry's offset in the directory
- * @inum: the inode number the entry points to
- * @type: the type of inode the entry points to
- *
- * Returns: 0 on success, 1 if buffer full
- */
-
-typedef int (*gfs2_filldir_t) (void *opaque,
- const char *name, unsigned int length,
- u64 offset,
- struct gfs2_inum_host *inum, unsigned int type);
-
int gfs2_dir_search(struct inode *dir, const struct qstr *filename,
struct gfs2_inum_host *inum, unsigned int *type);
int gfs2_dir_add(struct inode *inode, const struct qstr *filename,
const struct gfs2_inum_host *inum, unsigned int type);
int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *filename);
-int gfs2_dir_read(struct inode *inode, u64 * offset, void *opaque,
- gfs2_filldir_t filldir);
+int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
+ filldir_t filldir);
int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
struct gfs2_inum_host *new_inum, unsigned int new_type);
diff -Nru linux-rhel-base/fs/gfs2/glock.c linux-2.6.18.noarch/fs/gfs2/glock.c
--- linux-rhel-base/fs/gfs2/glock.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/glock.c 2007-04-18 14:06:30.000000000 +0100
@@ -19,6 +19,9 @@
#include <linux/gfs2_ondisk.h>
#include <linux/list.h>
#include <linux/lm_interface.h>
+#include <linux/wait.h>
+#include <linux/module.h>
+#include <linux/rwsem.h>
#include <asm/uaccess.h>
#include "gfs2.h"
@@ -33,11 +36,6 @@
#include "super.h"
#include "util.h"
-struct greedy {
- struct gfs2_holder gr_gh;
- struct work_struct gr_work;
-};
-
struct gfs2_gl_hash_bucket {
struct hlist_head hb_list;
};
@@ -47,6 +45,9 @@
static int gfs2_dump_lockstate(struct gfs2_sbd *sdp);
static int dump_glock(struct gfs2_glock *gl);
static int dump_inode(struct gfs2_inode *ip);
+static void gfs2_glock_xmote_th(struct gfs2_holder *gh);
+static void gfs2_glock_drop_th(struct gfs2_glock *gl);
+static DECLARE_RWSEM(gfs2_umount_flush_sem);
#define GFS2_GL_HASH_SHIFT 15
#define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT)
@@ -96,7 +97,7 @@
return &gl_hash_locks[x & (GL_HASH_LOCK_SZ-1)];
}
#else /* not SMP, so no spinlocks required */
-static inline rwlock_t *gl_lock_addr(x)
+static inline rwlock_t *gl_lock_addr(unsigned int x)
{
return NULL;
}
@@ -213,30 +214,6 @@
}
/**
- * queue_empty - check to see if a glock's queue is empty
- * @gl: the glock
- * @head: the head of the queue to check
- *
- * This function protects the list in the event that a process already
- * has a holder on the list and is adding a second holder for itself.
- * The glmutex lock is what generally prevents processes from working
- * on the same glock at once, but the special case of adding a second
- * holder for yourself ("recursive" locking) doesn't involve locking
- * glmutex, making the spin lock necessary.
- *
- * Returns: 1 if the queue is empty
- */
-
-static inline int queue_empty(struct gfs2_glock *gl, struct list_head *head)
-{
- int empty;
- spin_lock(&gl->gl_spin);
- empty = list_empty(head);
- spin_unlock(&gl->gl_spin);
- return empty;
-}
-
-/**
* search_bucket() - Find struct gfs2_glock by lock number
* @bucket: the bucket to search
* @name: The lock name
@@ -395,11 +372,6 @@
gh->gh_flags = flags;
gh->gh_error = 0;
gh->gh_iflags = 0;
- init_completion(&gh->gh_wait);
-
- if (gh->gh_state == LM_ST_EXCLUSIVE)
- gh->gh_flags |= GL_LOCAL_EXCL;
-
gfs2_glock_hold(gl);
}
@@ -417,9 +389,6 @@
{
gh->gh_state = state;
gh->gh_flags = flags;
- if (gh->gh_state == LM_ST_EXCLUSIVE)
- gh->gh_flags |= GL_LOCAL_EXCL;
-
gh->gh_iflags &= 1 << HIF_ALLOCED;
gh->gh_ip = (unsigned long)__builtin_return_address(0);
}
@@ -479,6 +448,29 @@
kfree(gh);
}
+static void gfs2_holder_dispose_or_wake(struct gfs2_holder *gh)
+{
+ if (test_bit(HIF_DEALLOC, &gh->gh_iflags)) {
+ gfs2_holder_put(gh);
+ return;
+ }
+ clear_bit(HIF_WAIT, &gh->gh_iflags);
+ smp_mb();
+ wake_up_bit(&gh->gh_iflags, HIF_WAIT);
+}
+
+static int holder_wait(void *word)
+{
+ schedule();
+ return 0;
+}
+
+static void wait_on_holder(struct gfs2_holder *gh)
+{
+ might_sleep();
+ wait_on_bit(&gh->gh_iflags, HIF_WAIT, holder_wait, TASK_UNINTERRUPTIBLE);
+}
+
/**
* rq_mutex - process a mutex request in the queue
* @gh: the glock holder
@@ -493,7 +485,9 @@
list_del_init(&gh->gh_list);
/* gh->gh_error never examined. */
set_bit(GLF_LOCK, &gl->gl_flags);
- complete(&gh->gh_wait);
+ clear_bit(HIF_WAIT, &gh->gh_iflags);
+ smp_mb();
+ wake_up_bit(&gh->gh_iflags, HIF_WAIT);
return 1;
}
@@ -511,7 +505,6 @@
{
struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_sbd *sdp = gl->gl_sbd;
- const struct gfs2_glock_operations *glops = gl->gl_ops;
if (!relaxed_state_ok(gl->gl_state, gh->gh_state, gh->gh_flags)) {
if (list_empty(&gl->gl_holders)) {
@@ -526,7 +519,7 @@
gfs2_reclaim_glock(sdp);
}
- glops->go_xmote_th(gl, gh->gh_state, gh->gh_flags);
+ gfs2_glock_xmote_th(gh);
spin_lock(&gl->gl_spin);
}
return 1;
@@ -537,11 +530,11 @@
set_bit(GLF_LOCK, &gl->gl_flags);
} else {
struct gfs2_holder *next_gh;
- if (gh->gh_flags & GL_LOCAL_EXCL)
+ if (gh->gh_state == LM_ST_EXCLUSIVE)
return 1;
next_gh = list_entry(gl->gl_holders.next, struct gfs2_holder,
gh_list);
- if (next_gh->gh_flags & GL_LOCAL_EXCL)
+ if (next_gh->gh_state == LM_ST_EXCLUSIVE)
return 1;
}
@@ -549,7 +542,7 @@
gh->gh_error = 0;
set_bit(HIF_HOLDER, &gh->gh_iflags);
- complete(&gh->gh_wait);
+ gfs2_holder_dispose_or_wake(gh);
return 0;
}
@@ -564,7 +557,6 @@
static int rq_demote(struct gfs2_holder *gh)
{
struct gfs2_glock *gl = gh->gh_gl;
- const struct gfs2_glock_operations *glops = gl->gl_ops;
if (!list_empty(&gl->gl_holders))
return 1;
@@ -573,10 +565,7 @@
list_del_init(&gh->gh_list);
gh->gh_error = 0;
spin_unlock(&gl->gl_spin);
- if (test_bit(HIF_DEALLOC, &gh->gh_iflags))
- gfs2_holder_put(gh);
- else
- complete(&gh->gh_wait);
+ gfs2_holder_dispose_or_wake(gh);
spin_lock(&gl->gl_spin);
} else {
gl->gl_req_gh = gh;
@@ -585,9 +574,9 @@
if (gh->gh_state == LM_ST_UNLOCKED ||
gl->gl_state != LM_ST_EXCLUSIVE)
- glops->go_drop_th(gl);
+ gfs2_glock_drop_th(gl);
else
- glops->go_xmote_th(gl, gh->gh_state, gh->gh_flags);
+ gfs2_glock_xmote_th(gh);
spin_lock(&gl->gl_spin);
}
@@ -596,30 +585,6 @@
}
/**
- * rq_greedy - process a queued request to drop greedy status
- * @gh: the glock holder
- *
- * Returns: 1 if the queue is blocked
- */
-
-static int rq_greedy(struct gfs2_holder *gh)
-{
- struct gfs2_glock *gl = gh->gh_gl;
-
- list_del_init(&gh->gh_list);
- /* gh->gh_error never examined. */
- clear_bit(GLF_GREEDY, &gl->gl_flags);
- spin_unlock(&gl->gl_spin);
-
- gfs2_holder_uninit(gh);
- kfree(container_of(gh, struct greedy, gr_gh));
-
- spin_lock(&gl->gl_spin);
-
- return 0;
-}
-
-/**
* run_queue - process holder structures on a glock
* @gl: the glock
*
@@ -649,8 +614,6 @@
if (test_bit(HIF_DEMOTE, &gh->gh_iflags))
blocked = rq_demote(gh);
- else if (test_bit(HIF_GREEDY, &gh->gh_iflags))
- blocked = rq_greedy(gh);
else
gfs2_assert_warn(gl->gl_sbd, 0);
@@ -684,6 +647,8 @@
gfs2_holder_init(gl, 0, 0, &gh);
set_bit(HIF_MUTEX, &gh.gh_iflags);
+ if (test_and_set_bit(HIF_WAIT, &gh.gh_iflags))
+ BUG();
spin_lock(&gl->gl_spin);
if (test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
@@ -691,11 +656,13 @@
} else {
gl->gl_owner = current;
gl->gl_ip = (unsigned long)__builtin_return_address(0);
- complete(&gh.gh_wait);
+ clear_bit(HIF_WAIT, &gh.gh_iflags);
+ smp_mb();
+ wake_up_bit(&gh.gh_iflags, HIF_WAIT);
}
spin_unlock(&gl->gl_spin);
- wait_for_completion(&gh.gh_wait);
+ wait_on_holder(&gh);
gfs2_holder_uninit(&gh);
}
@@ -774,6 +741,7 @@
return;
set_bit(HIF_DEMOTE, &new_gh->gh_iflags);
set_bit(HIF_DEALLOC, &new_gh->gh_iflags);
+ set_bit(HIF_WAIT, &new_gh->gh_iflags);
goto restart;
}
@@ -825,7 +793,7 @@
int op_done = 1;
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
- gfs2_assert_warn(sdp, queue_empty(gl, &gl->gl_holders));
+ gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, !(ret & LM_OUT_ASYNC));
state_change(gl, ret & LM_OUT_ST_MASK);
@@ -908,12 +876,8 @@
gfs2_glock_put(gl);
- if (gh) {
- if (test_bit(HIF_DEALLOC, &gh->gh_iflags))
- gfs2_holder_put(gh);
- else
- complete(&gh->gh_wait);
- }
+ if (gh)
+ gfs2_holder_dispose_or_wake(gh);
}
/**
@@ -924,23 +888,26 @@
*
*/
-void gfs2_glock_xmote_th(struct gfs2_glock *gl, unsigned int state, int flags)
+void gfs2_glock_xmote_th(struct gfs2_holder *gh)
{
+ struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_sbd *sdp = gl->gl_sbd;
+ int flags = gh->gh_flags;
+ unsigned state = gh->gh_state;
const struct gfs2_glock_operations *glops = gl->gl_ops;
int lck_flags = flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB |
LM_FLAG_NOEXP | LM_FLAG_ANY |
LM_FLAG_PRIORITY);
unsigned int lck_ret;
+ if (glops->go_xmote_th)
+ glops->go_xmote_th(gl);
+
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
- gfs2_assert_warn(sdp, queue_empty(gl, &gl->gl_holders));
+ gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, state != LM_ST_UNLOCKED);
gfs2_assert_warn(sdp, state != gl->gl_state);
- if (gl->gl_state == LM_ST_EXCLUSIVE && glops->go_sync)
- glops->go_sync(gl);
-
gfs2_glock_hold(gl);
gl->gl_req_bh = xmote_bh;
@@ -971,10 +938,8 @@
const struct gfs2_glock_operations *glops = gl->gl_ops;
struct gfs2_holder *gh = gl->gl_req_gh;
- clear_bit(GLF_PREFETCH, &gl->gl_flags);
-
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
- gfs2_assert_warn(sdp, queue_empty(gl, &gl->gl_holders));
+ gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, !ret);
state_change(gl, LM_ST_UNLOCKED);
@@ -989,9 +954,6 @@
spin_unlock(&gl->gl_spin);
}
- if (glops->go_drop_bh)
- glops->go_drop_bh(gl);
-
spin_lock(&gl->gl_spin);
gl->gl_req_gh = NULL;
gl->gl_req_bh = NULL;
@@ -1001,12 +963,8 @@
gfs2_glock_put(gl);
- if (gh) {
- if (test_bit(HIF_DEALLOC, &gh->gh_iflags))
- gfs2_holder_put(gh);
- else
- complete(&gh->gh_wait);
- }
+ if (gh)
+ gfs2_holder_dispose_or_wake(gh);
}
/**
@@ -1015,19 +973,19 @@
*
*/
-void gfs2_glock_drop_th(struct gfs2_glock *gl)
+static void gfs2_glock_drop_th(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
const struct gfs2_glock_operations *glops = gl->gl_ops;
unsigned int ret;
+ if (glops->go_drop_th)
+ glops->go_drop_th(gl);
+
gfs2_assert_warn(sdp, test_bit(GLF_LOCK, &gl->gl_flags));
- gfs2_assert_warn(sdp, queue_empty(gl, &gl->gl_holders));
+ gfs2_assert_warn(sdp, list_empty(&gl->gl_holders));
gfs2_assert_warn(sdp, gl->gl_state != LM_ST_UNLOCKED);
- if (gl->gl_state == LM_ST_EXCLUSIVE && glops->go_sync)
- glops->go_sync(gl);
-
gfs2_glock_hold(gl);
gl->gl_req_bh = drop_bh;
@@ -1107,8 +1065,7 @@
if (gh->gh_flags & LM_FLAG_PRIORITY)
do_cancels(gh);
- wait_for_completion(&gh->gh_wait);
-
+ wait_on_holder(gh);
if (gh->gh_error)
return gh->gh_error;
@@ -1164,6 +1121,8 @@
struct gfs2_holder *existing;
BUG_ON(!gh->gh_owner);
+ if (test_and_set_bit(HIF_WAIT, &gh->gh_iflags))
+ BUG();
existing = find_holder_by_owner(&gl->gl_holders, gh->gh_owner);
if (existing) {
@@ -1227,8 +1186,6 @@
}
}
- clear_bit(GLF_PREFETCH, &gl->gl_flags);
-
return error;
}
@@ -1321,98 +1278,6 @@
}
/**
- * gfs2_glock_prefetch - Try to prefetch a glock
- * @gl: the glock
- * @state: the state to prefetch in
- * @flags: flags passed to go_xmote_th()
- *
- */
-
-static void gfs2_glock_prefetch(struct gfs2_glock *gl, unsigned int state,
- int flags)
-{
- const struct gfs2_glock_operations *glops = gl->gl_ops;
-
- spin_lock(&gl->gl_spin);
-
- if (test_bit(GLF_LOCK, &gl->gl_flags) || !list_empty(&gl->gl_holders) ||
- !list_empty(&gl->gl_waiters1) || !list_empty(&gl->gl_waiters2) ||
- !list_empty(&gl->gl_waiters3) ||
- relaxed_state_ok(gl->gl_state, state, flags)) {
- spin_unlock(&gl->gl_spin);
- return;
- }
-
- set_bit(GLF_PREFETCH, &gl->gl_flags);
- set_bit(GLF_LOCK, &gl->gl_flags);
- spin_unlock(&gl->gl_spin);
-
- glops->go_xmote_th(gl, state, flags);
-}
-
-static void greedy_work(void *data)
-{
- struct greedy *gr = data;
- struct gfs2_holder *gh = &gr->gr_gh;
- struct gfs2_glock *gl = gh->gh_gl;
- const struct gfs2_glock_operations *glops = gl->gl_ops;
-
- clear_bit(GLF_SKIP_WAITERS2, &gl->gl_flags);
-
- if (glops->go_greedy)
- glops->go_greedy(gl);
-
- spin_lock(&gl->gl_spin);
-
- if (list_empty(&gl->gl_waiters2)) {
- clear_bit(GLF_GREEDY, &gl->gl_flags);
- spin_unlock(&gl->gl_spin);
- gfs2_holder_uninit(gh);
- kfree(gr);
- } else {
- gfs2_glock_hold(gl);
- list_add_tail(&gh->gh_list, &gl->gl_waiters2);
- run_queue(gl);
- spin_unlock(&gl->gl_spin);
- gfs2_glock_put(gl);
- }
-}
-
-/**
- * gfs2_glock_be_greedy -
- * @gl:
- * @time:
- *
- * Returns: 0 if go_greedy will be called, 1 otherwise
- */
-
-int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time)
-{
- struct greedy *gr;
- struct gfs2_holder *gh;
-
- if (!time || gl->gl_sbd->sd_args.ar_localcaching ||
- test_and_set_bit(GLF_GREEDY, &gl->gl_flags))
- return 1;
-
- gr = kmalloc(sizeof(struct greedy), GFP_KERNEL);
- if (!gr) {
- clear_bit(GLF_GREEDY, &gl->gl_flags);
- return 1;
- }
- gh = &gr->gr_gh;
-
- gfs2_holder_init(gl, 0, 0, gh);
- set_bit(HIF_GREEDY, &gh->gh_iflags);
- INIT_WORK(&gr->gr_work, greedy_work, gr);
-
- set_bit(GLF_SKIP_WAITERS2, &gl->gl_flags);
- schedule_delayed_work(&gr->gr_work, time);
-
- return 0;
-}
-
-/**
* gfs2_glock_dq_uninit - dequeue a holder from a glock and initialize it
* @gh: the holder structure
*
@@ -1470,10 +1335,7 @@
return 1;
if (a->ln_number < b->ln_number)
return -1;
- if (gh_a->gh_state == LM_ST_SHARED && gh_b->gh_state == LM_ST_EXCLUSIVE)
- return 1;
- if (!(gh_a->gh_flags & GL_LOCAL_EXCL) && (gh_b->gh_flags & GL_LOCAL_EXCL))
- return 1;
+ BUG_ON(gh_a->gh_gl->gl_ops->go_type == gh_b->gh_gl->gl_ops->go_type);
return 0;
}
@@ -1618,34 +1480,6 @@
}
/**
- * gfs2_glock_prefetch_num - prefetch a glock based on lock number
- * @sdp: the filesystem
- * @number: the lock number
- * @glops: the glock operations for the type of glock
- * @state: the state to acquire the glock in
- * @flags: modifier flags for the aquisition
- *
- * Returns: errno
- */
-
-void gfs2_glock_prefetch_num(struct gfs2_sbd *sdp, u64 number,
- const struct gfs2_glock_operations *glops,
- unsigned int state, int flags)
-{
- struct gfs2_glock *gl;
- int error;
-
- if (atomic_read(&sdp->sd_reclaim_count) <
- gfs2_tune_get(sdp, gt_reclaim_limit)) {
- error = gfs2_glock_get(sdp, number, glops, CREATE, &gl);
- if (!error) {
- gfs2_glock_prefetch(gl, state, flags);
- gfs2_glock_put(gl);
- }
- }
-}
-
-/**
* gfs2_lvb_hold - attach a LVB from a glock
* @gl: The glock in question
*
@@ -1703,8 +1537,6 @@
if (!gl)
return;
- if (gl->gl_ops->go_callback)
- gl->gl_ops->go_callback(gl, state);
handle_callback(gl, state);
spin_lock(&gl->gl_spin);
@@ -1746,12 +1578,14 @@
struct lm_async_cb *async = data;
struct gfs2_glock *gl;
+ down_read(&gfs2_umount_flush_sem);
gl = gfs2_glock_find(sdp, &async->lc_name);
if (gfs2_assert_warn(sdp, gl))
return;
if (!gfs2_assert_warn(sdp, gl->gl_req_bh))
gl->gl_req_bh(gl, async->lc_ret);
gfs2_glock_put(gl);
+ up_read(&gfs2_umount_flush_sem);
return;
}
@@ -1781,15 +1615,11 @@
static int demote_ok(struct gfs2_glock *gl)
{
- struct gfs2_sbd *sdp = gl->gl_sbd;
const struct gfs2_glock_operations *glops = gl->gl_ops;
int demote = 1;
if (test_bit(GLF_STICKY, &gl->gl_flags))
demote = 0;
- else if (test_bit(GLF_PREFETCH, &gl->gl_flags))
- demote = time_after_eq(jiffies, gl->gl_stamp +
- gfs2_tune_get(sdp, gt_prefetch_secs) * HZ);
else if (glops->go_demote_ok)
demote = glops->go_demote_ok(gl);
@@ -1845,7 +1675,7 @@
atomic_inc(&sdp->sd_reclaimed);
if (gfs2_glmutex_trylock(gl)) {
- if (queue_empty(gl, &gl->gl_holders) &&
+ if (list_empty(&gl->gl_holders) &&
gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
handle_callback(gl, LM_ST_UNLOCKED);
gfs2_glmutex_unlock(gl);
@@ -1909,7 +1739,7 @@
return;
if (gfs2_glmutex_trylock(gl)) {
- if (queue_empty(gl, &gl->gl_holders) &&
+ if (list_empty(&gl->gl_holders) &&
gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
goto out_schedule;
gfs2_glmutex_unlock(gl);
@@ -1958,7 +1788,7 @@
}
if (gfs2_glmutex_trylock(gl)) {
- if (queue_empty(gl, &gl->gl_holders) &&
+ if (list_empty(&gl->gl_holders) &&
gl->gl_state != LM_ST_UNLOCKED)
handle_callback(gl, LM_ST_UNLOCKED);
gfs2_glmutex_unlock(gl);
@@ -2000,7 +1830,9 @@
t = jiffies;
}
+ down_write(&gfs2_umount_flush_sem);
invalidate_inodes(sdp->sd_vfs);
+ up_write(&gfs2_umount_flush_sem);
msleep(10);
}
}
diff -Nru linux-rhel-base/fs/gfs2/glock.h linux-2.6.18.noarch/fs/gfs2/glock.h
--- linux-rhel-base/fs/gfs2/glock.h 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/glock.h 2007-04-18 14:05:59.000000000 +0100
@@ -20,7 +20,6 @@
#define LM_FLAG_ANY 0x00000008
#define LM_FLAG_PRIORITY 0x00000010 */
-#define GL_LOCAL_EXCL 0x00000020
#define GL_ASYNC 0x00000040
#define GL_EXACT 0x00000080
#define GL_SKIP 0x00000100
@@ -83,17 +82,11 @@
void gfs2_holder_reinit(unsigned int state, unsigned flags,
struct gfs2_holder *gh);
void gfs2_holder_uninit(struct gfs2_holder *gh);
-
-void gfs2_glock_xmote_th(struct gfs2_glock *gl, unsigned int state, int flags);
-void gfs2_glock_drop_th(struct gfs2_glock *gl);
-
int gfs2_glock_nq(struct gfs2_holder *gh);
int gfs2_glock_poll(struct gfs2_holder *gh);
int gfs2_glock_wait(struct gfs2_holder *gh);
void gfs2_glock_dq(struct gfs2_holder *gh);
-int gfs2_glock_be_greedy(struct gfs2_glock *gl, unsigned int time);
-
void gfs2_glock_dq_uninit(struct gfs2_holder *gh);
int gfs2_glock_nq_num(struct gfs2_sbd *sdp,
u64 number, const struct gfs2_glock_operations *glops,
@@ -103,10 +96,6 @@
void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs);
void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs);
-void gfs2_glock_prefetch_num(struct gfs2_sbd *sdp, u64 number,
- const struct gfs2_glock_operations *glops,
- unsigned int state, int flags);
-
/**
* gfs2_glock_nq_init - intialize a holder and enqueue it on a glock
* @gl: the glock
diff -Nru linux-rhel-base/fs/gfs2/glops.c linux-2.6.18.noarch/fs/gfs2/glops.c
--- linux-rhel-base/fs/gfs2/glops.c 2007-04-18 09:33:15.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/glops.c 2007-04-18 14:05:59.000000000 +0100
@@ -66,12 +66,14 @@
static void meta_go_sync(struct gfs2_glock *gl)
{
+ if (gl->gl_state != LM_ST_EXCLUSIVE)
+ return;
+
if (test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) {
gfs2_log_flush(gl->gl_sbd, gl);
gfs2_meta_sync(gl);
gfs2_ail_empty_gl(gl);
}
-
}
/**
@@ -91,6 +93,37 @@
}
/**
+ * inode_go_sync - Sync the dirty data and/or metadata for an inode glock
+ * @gl: the glock protecting the inode
+ *
+ */
+
+static void inode_go_sync(struct gfs2_glock *gl)
+{
+ struct gfs2_inode *ip = gl->gl_object;
+
+ if (ip && !S_ISREG(ip->i_inode.i_mode))
+ ip = NULL;
+
+ if (test_bit(GLF_DIRTY, &gl->gl_flags)) {
+ gfs2_log_flush(gl->gl_sbd, gl);
+ if (ip)
+ filemap_fdatawrite(ip->i_inode.i_mapping);
+ gfs2_meta_sync(gl);
+ if (ip) {
+ struct address_space *mapping = ip->i_inode.i_mapping;
+ int error = filemap_fdatawait(mapping);
+ if (error == -ENOSPC)
+ set_bit(AS_ENOSPC, &mapping->flags);
+ else if (error)
+ set_bit(AS_EIO, &mapping->flags);
+ }
+ clear_bit(GLF_DIRTY, &gl->gl_flags);
+ gfs2_ail_empty_gl(gl);
+ }
+}
+
+/**
* inode_go_xmote_th - promote/demote a glock
* @gl: the glock
* @state: the requested state
@@ -98,12 +131,12 @@
*
*/
-static void inode_go_xmote_th(struct gfs2_glock *gl, unsigned int state,
- int flags)
+static void inode_go_xmote_th(struct gfs2_glock *gl)
{
if (gl->gl_state != LM_ST_UNLOCKED)
gfs2_pte_inval(gl);
- gfs2_glock_xmote_th(gl, state, flags);
+ if (gl->gl_state == LM_ST_EXCLUSIVE)
+ inode_go_sync(gl);
}
/**
@@ -138,38 +171,8 @@
static void inode_go_drop_th(struct gfs2_glock *gl)
{
gfs2_pte_inval(gl);
- gfs2_glock_drop_th(gl);
-}
-
-/**
- * inode_go_sync - Sync the dirty data and/or metadata for an inode glock
- * @gl: the glock protecting the inode
- *
- */
-
-static void inode_go_sync(struct gfs2_glock *gl)
-{
- struct gfs2_inode *ip = gl->gl_object;
-
- if (ip && !S_ISREG(ip->i_inode.i_mode))
- ip = NULL;
-
- if (test_bit(GLF_DIRTY, &gl->gl_flags)) {
- gfs2_log_flush(gl->gl_sbd, gl);
- if (ip)
- filemap_fdatawrite(ip->i_inode.i_mapping);
- gfs2_meta_sync(gl);
- if (ip) {
- struct address_space *mapping = ip->i_inode.i_mapping;
- int error = filemap_fdatawait(mapping);
- if (error == -ENOSPC)
- set_bit(AS_ENOSPC, &mapping->flags);
- else if (error)
- set_bit(AS_EIO, &mapping->flags);
- }
- clear_bit(GLF_DIRTY, &gl->gl_flags);
- gfs2_ail_empty_gl(gl);
- }
+ if (gl->gl_state == LM_ST_EXCLUSIVE)
+ inode_go_sync(gl);
}
/**
@@ -244,7 +247,7 @@
if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) &&
(gl->gl_state == LM_ST_EXCLUSIVE) &&
- (gh->gh_flags & GL_LOCAL_EXCL))
+ (gh->gh_state == LM_ST_EXCLUSIVE))
error = gfs2_truncatei_resume(ip);
return error;
@@ -271,39 +274,6 @@
}
/**
- * inode_greedy -
- * @gl: the glock
- *
- */
-
-static void inode_greedy(struct gfs2_glock *gl)
-{
- struct gfs2_sbd *sdp = gl->gl_sbd;
- struct gfs2_inode *ip = gl->gl_object;
- unsigned int quantum = gfs2_tune_get(sdp, gt_greedy_quantum);
- unsigned int max = gfs2_tune_get(sdp, gt_greedy_max);
- unsigned int new_time;
-
- spin_lock(&ip->i_spin);
-
- if (time_after(ip->i_last_pfault + quantum, jiffies)) {
- new_time = ip->i_greedy + quantum;
- if (new_time > max)
- new_time = max;
- } else {
- new_time = ip->i_greedy - quantum;
- if (!new_time || new_time > max)
- new_time = 1;
- }
-
- ip->i_greedy = new_time;
-
- spin_unlock(&ip->i_spin);
-
- iput(&ip->i_inode);
-}
-
-/**
* rgrp_go_demote_ok - Check to see if it's ok to unlock a RG's glock
* @gl: the glock
*
@@ -350,8 +320,7 @@
*
*/
-static void trans_go_xmote_th(struct gfs2_glock *gl, unsigned int state,
- int flags)
+static void trans_go_xmote_th(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
@@ -360,8 +329,6 @@
gfs2_meta_syncfs(sdp);
gfs2_log_shutdown(sdp);
}
-
- gfs2_glock_xmote_th(gl, state, flags);
}
/**
@@ -413,8 +380,6 @@
gfs2_meta_syncfs(sdp);
gfs2_log_shutdown(sdp);
}
-
- gfs2_glock_drop_th(gl);
}
/**
@@ -430,8 +395,8 @@
}
const struct gfs2_glock_operations gfs2_meta_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
+ .go_xmote_th = meta_go_sync,
+ .go_drop_th = meta_go_sync,
.go_type = LM_TYPE_META,
};
@@ -439,19 +404,14 @@
.go_xmote_th = inode_go_xmote_th,
.go_xmote_bh = inode_go_xmote_bh,
.go_drop_th = inode_go_drop_th,
- .go_sync = inode_go_sync,
.go_inval = inode_go_inval,
.go_demote_ok = inode_go_demote_ok,
.go_lock = inode_go_lock,
.go_unlock = inode_go_unlock,
- .go_greedy = inode_greedy,
.go_type = LM_TYPE_INODE,
};
const struct gfs2_glock_operations gfs2_rgrp_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
- .go_sync = meta_go_sync,
.go_inval = meta_go_inval,
.go_demote_ok = rgrp_go_demote_ok,
.go_lock = rgrp_go_lock,
@@ -467,33 +427,23 @@
};
const struct gfs2_glock_operations gfs2_iopen_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
.go_type = LM_TYPE_IOPEN,
};
const struct gfs2_glock_operations gfs2_flock_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
.go_type = LM_TYPE_FLOCK,
};
const struct gfs2_glock_operations gfs2_nondisk_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
.go_type = LM_TYPE_NONDISK,
};
const struct gfs2_glock_operations gfs2_quota_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
.go_demote_ok = quota_go_demote_ok,
.go_type = LM_TYPE_QUOTA,
};
const struct gfs2_glock_operations gfs2_journal_glops = {
- .go_xmote_th = gfs2_glock_xmote_th,
- .go_drop_th = gfs2_glock_drop_th,
.go_type = LM_TYPE_JOURNAL,
};
diff -Nru linux-rhel-base/fs/gfs2/incore.h linux-2.6.18.noarch/fs/gfs2/incore.h
--- linux-rhel-base/fs/gfs2/incore.h 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/incore.h 2007-04-18 14:06:24.000000000 +0100
@@ -101,17 +101,13 @@
};
struct gfs2_glock_operations {
- void (*go_xmote_th) (struct gfs2_glock *gl, unsigned int state, int flags);
+ void (*go_xmote_th) (struct gfs2_glock *gl);
void (*go_xmote_bh) (struct gfs2_glock *gl);
void (*go_drop_th) (struct gfs2_glock *gl);
- void (*go_drop_bh) (struct gfs2_glock *gl);
- void (*go_sync) (struct gfs2_glock *gl);
void (*go_inval) (struct gfs2_glock *gl, int flags);
int (*go_demote_ok) (struct gfs2_glock *gl);
int (*go_lock) (struct gfs2_holder *gh);
void (*go_unlock) (struct gfs2_holder *gh);
- void (*go_callback) (struct gfs2_glock *gl, unsigned int state);
- void (*go_greedy) (struct gfs2_glock *gl);
const int go_type;
};
@@ -120,7 +116,6 @@
HIF_MUTEX = 0,
HIF_PROMOTE = 1,
HIF_DEMOTE = 2,
- HIF_GREEDY = 3,
/* States */
HIF_ALLOCED = 4,
@@ -128,6 +123,7 @@
HIF_HOLDER = 6,
HIF_FIRST = 7,
HIF_ABORTED = 9,
+ HIF_WAIT = 10,
};
struct gfs2_holder {
@@ -140,17 +136,14 @@
int gh_error;
unsigned long gh_iflags;
- struct completion gh_wait;
unsigned long gh_ip;
};
enum {
GLF_LOCK = 1,
GLF_STICKY = 2,
- GLF_PREFETCH = 3,
GLF_DIRTY = 5,
GLF_SKIP_WAITERS2 = 6,
- GLF_GREEDY = 7,
};
struct gfs2_glock {
@@ -167,7 +160,7 @@
unsigned long gl_ip;
struct list_head gl_holders;
struct list_head gl_waiters1; /* HIF_MUTEX */
- struct list_head gl_waiters2; /* HIF_DEMOTE, HIF_GREEDY */
+ struct list_head gl_waiters2; /* HIF_DEMOTE */
struct list_head gl_waiters3; /* HIF_PROMOTE */
const struct gfs2_glock_operations *gl_ops;
@@ -236,7 +229,6 @@
spinlock_t i_spin;
struct rw_semaphore i_rw_mutex;
- unsigned int i_greedy;
unsigned long i_last_pfault;
struct buffer_head *i_cache[GFS2_MAX_META_HEIGHT];
@@ -425,10 +417,6 @@
unsigned int gt_complain_secs;
unsigned int gt_reclaim_limit; /* Max num of glocks in reclaim list */
unsigned int gt_entries_per_readdir;
- unsigned int gt_prefetch_secs; /* Usage window for prefetched glocks */
- unsigned int gt_greedy_default;
- unsigned int gt_greedy_quantum;
- unsigned int gt_greedy_max;
unsigned int gt_statfs_quantum;
unsigned int gt_statfs_slow;
};
diff -Nru linux-rhel-base/fs/gfs2/ops_export.c linux-2.6.18.noarch/fs/gfs2/ops_export.c
--- linux-rhel-base/fs/gfs2/ops_export.c 2007-04-18 09:33:13.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/ops_export.c 2007-04-18 14:05:50.000000000 +0100
@@ -110,13 +110,12 @@
char *name;
};
-static int get_name_filldir(void *opaque, const char *name, unsigned int length,
- u64 offset, struct gfs2_inum_host *inum,
- unsigned int type)
+static int get_name_filldir(void *opaque, const char *name, int length,
+ loff_t offset, u64 inum, unsigned int type)
{
- struct get_name_filldir *gnfd = (struct get_name_filldir *)opaque;
+ struct get_name_filldir *gnfd = opaque;
- if (!gfs2_inum_equal(inum, &gnfd->inum))
+ if (inum != gnfd->inum.no_addr)
return 0;
memcpy(gnfd->name, name, length);
@@ -214,8 +213,7 @@
}
error = gfs2_glock_nq_num(sdp, inum->no_addr, &gfs2_inode_glops,
- LM_ST_SHARED, LM_FLAG_ANY | GL_LOCAL_EXCL,
- &i_gh);
+ LM_ST_SHARED, LM_FLAG_ANY, &i_gh);
if (error)
return ERR_PTR(error);
diff -Nru linux-rhel-base/fs/gfs2/ops_file.c linux-2.6.18.noarch/fs/gfs2/ops_file.c
--- linux-rhel-base/fs/gfs2/ops_file.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/ops_file.c 2007-04-18 14:02:51.000000000 +0100
@@ -43,15 +43,6 @@
#include "util.h"
#include "eaops.h"
-/* For regular, non-NFS */
-struct filldir_reg {
- struct gfs2_sbd *fdr_sbd;
- int fdr_prefetch;
-
- filldir_t fdr_filldir;
- void *fdr_opaque;
-};
-
/*
* Most fields left uninitialised to catch anybody who tries to
* use them. f_flags set to prevent file_accessed() from touching
@@ -128,41 +119,6 @@
}
/**
- * filldir_func - Report a directory entry to the caller of gfs2_dir_read()
- * @opaque: opaque data used by the function
- * @name: the name of the directory entry
- * @length: the length of the name
- * @offset: the entry's offset in the directory
- * @inum: the inode number the entry points to
- * @type: the type of inode the entry points to
- *
- * Returns: 0 on success, 1 if buffer full
- */
-
-static int filldir_func(void *opaque, const char *name, unsigned int length,
- u64 offset, struct gfs2_inum_host *inum,
- unsigned int type)
-{
- struct filldir_reg *fdr = (struct filldir_reg *)opaque;
- struct gfs2_sbd *sdp = fdr->fdr_sbd;
- int error;
-
- error = fdr->fdr_filldir(fdr->fdr_opaque, name, length, offset,
- inum->no_addr, type);
- if (error)
- return 1;
-
- if (fdr->fdr_prefetch && !(length == 1 && *name == '.')) {
- gfs2_glock_prefetch_num(sdp, inum->no_addr, &gfs2_inode_glops,
- LM_ST_SHARED, LM_FLAG_TRY | LM_FLAG_ANY);
- gfs2_glock_prefetch_num(sdp, inum->no_addr, &gfs2_iopen_glops,
- LM_ST_SHARED, LM_FLAG_TRY);
- }
-
- return 0;
-}
-
-/**
* gfs2_readdir - Read directory entries from a directory
* @file: The directory to read from
* @dirent: Buffer for dirents
@@ -175,16 +131,10 @@
{
struct inode *dir = file->f_mapping->host;
struct gfs2_inode *dip = GFS2_I(dir);
- struct filldir_reg fdr;
struct gfs2_holder d_gh;
u64 offset = file->f_pos;
int error;
- fdr.fdr_sbd = GFS2_SB(dir);
- fdr.fdr_prefetch = 1;
- fdr.fdr_filldir = filldir;
- fdr.fdr_opaque = dirent;
-
gfs2_holder_init(dip->i_gl, LM_ST_SHARED, GL_ATIME, &d_gh);
error = gfs2_glock_nq_atime(&d_gh);
if (error) {
@@ -192,7 +142,7 @@
return error;
}
- error = gfs2_dir_read(dir, &offset, &fdr, filldir_func);
+ error = gfs2_dir_read(dir, &offset, dirent, filldir);
gfs2_glock_dq_uninit(&d_gh);
diff -Nru linux-rhel-base/fs/gfs2/ops_super.c linux-2.6.18.noarch/fs/gfs2/ops_super.c
--- linux-rhel-base/fs/gfs2/ops_super.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/ops_super.c 2007-04-18 14:04:02.000000000 +0100
@@ -452,14 +452,12 @@
static struct inode *gfs2_alloc_inode(struct super_block *sb)
{
- struct gfs2_sbd *sdp = sb->s_fs_info;
struct gfs2_inode *ip;
ip = kmem_cache_alloc(gfs2_inode_cachep, GFP_KERNEL);
if (ip) {
ip->i_flags = 0;
ip->i_gl = NULL;
- ip->i_greedy = gfs2_tune_get(sdp, gt_greedy_default);
ip->i_last_pfault = jiffies;
}
return &ip->i_inode;
diff -Nru linux-rhel-base/fs/gfs2/ops_vm.c linux-2.6.18.noarch/fs/gfs2/ops_vm.c
--- linux-rhel-base/fs/gfs2/ops_vm.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/ops_vm.c 2007-04-18 14:04:02.000000000 +0100
@@ -28,34 +28,13 @@
#include "trans.h"
#include "util.h"
-static void pfault_be_greedy(struct gfs2_inode *ip)
-{
- unsigned int time;
-
- spin_lock(&ip->i_spin);
- time = ip->i_greedy;
- ip->i_last_pfault = jiffies;
- spin_unlock(&ip->i_spin);
-
- igrab(&ip->i_inode);
- if (gfs2_glock_be_greedy(ip->i_gl, time))
- iput(&ip->i_inode);
-}
-
static struct page *gfs2_private_nopage(struct vm_area_struct *area,
unsigned long address, int *type)
{
struct gfs2_inode *ip = GFS2_I(area->vm_file->f_mapping->host);
- struct page *result;
set_bit(GIF_PAGED, &ip->i_flags);
-
- result = filemap_nopage(area, address, type);
-
- if (result && result != NOPAGE_OOM)
- pfault_be_greedy(ip);
-
- return result;
+ return filemap_nopage(area, address, type);
}
static int alloc_page_backing(struct gfs2_inode *ip, struct page *page)
@@ -167,7 +146,6 @@
set_page_dirty(result);
}
- pfault_be_greedy(ip);
out:
gfs2_glock_dq_uninit(&i_gh);
diff -Nru linux-rhel-base/fs/gfs2/super.c linux-2.6.18.noarch/fs/gfs2/super.c
--- linux-rhel-base/fs/gfs2/super.c 2007-04-18 09:33:12.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/super.c 2007-04-18 14:05:50.000000000 +0100
@@ -78,10 +78,6 @@
gt->gt_complain_secs = 10;
gt->gt_reclaim_limit = 5000;
gt->gt_entries_per_readdir = 32;
- gt->gt_prefetch_secs = 10;
- gt->gt_greedy_default = HZ / 10;
- gt->gt_greedy_quantum = HZ / 40;
- gt->gt_greedy_max = HZ / 4;
gt->gt_statfs_quantum = 30;
gt->gt_statfs_slow = 0;
}
@@ -341,8 +337,7 @@
mutex_lock(&sdp->sd_jindex_mutex);
for (;;) {
- error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL, ji_gh);
+ error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
if (error)
break;
@@ -511,8 +506,7 @@
struct gfs2_log_header_host head;
int error;
- error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL, &t_gh);
+ error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, 0, &t_gh);
if (error)
return error;
@@ -565,9 +559,8 @@
gfs2_quota_sync(sdp);
gfs2_statfs_sync(sdp);
- error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL | GL_NOCACHE,
- &t_gh);
+ error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, GL_NOCACHE,
+ &t_gh);
if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
return error;
diff -Nru linux-rhel-base/fs/gfs2/sys.c linux-2.6.18.noarch/fs/gfs2/sys.c
--- linux-rhel-base/fs/gfs2/sys.c 2007-04-18 09:32:41.000000000 +0100
+++ linux-2.6.18.noarch/fs/gfs2/sys.c 2007-04-18 14:05:36.000000000 +0100
@@ -439,7 +439,6 @@
TUNE_ATTR(max_readahead, 0);
TUNE_ATTR(complain_secs, 0);
TUNE_ATTR(reclaim_limit, 0);
-TUNE_ATTR(prefetch_secs, 0);
TUNE_ATTR(statfs_slow, 0);
TUNE_ATTR(new_files_jdata, 0);
TUNE_ATTR(new_files_directio, 0);
@@ -448,9 +447,6 @@
TUNE_ATTR(max_atomic_write, 1);
TUNE_ATTR(stall_secs, 1);
TUNE_ATTR(entries_per_readdir, 1);
-TUNE_ATTR(greedy_default, 1);
-TUNE_ATTR(greedy_quantum, 1);
-TUNE_ATTR(greedy_max, 1);
TUNE_ATTR(statfs_quantum, 1);
TUNE_ATTR_DAEMON(scand_secs, scand_process);
TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
@@ -472,16 +468,12 @@
&tune_attr_max_readahead.attr,
&tune_attr_complain_secs.attr,
&tune_attr_reclaim_limit.attr,
- &tune_attr_prefetch_secs.attr,
&tune_attr_statfs_slow.attr,
&tune_attr_quota_simul_sync.attr,
&tune_attr_quota_cache_secs.attr,
&tune_attr_max_atomic_write.attr,
&tune_attr_stall_secs.attr,
&tune_attr_entries_per_readdir.attr,
- &tune_attr_greedy_default.attr,
- &tune_attr_greedy_quantum.attr,
- &tune_attr_greedy_max.attr,
&tune_attr_statfs_quantum.attr,
&tune_attr_scand_secs.attr,
&tune_attr_recoverd_secs.attr,
distrib
>
Scientific%20Linux
>
5x
>
x86_64
>
by-pkgid
>
27922b4260f65d317aabda37e42bbbff
>
files
>
1250
