#include <linux/buffer_head.h>
#include <linux/module.h>
#include <linux/kobject.h>
-#include <linux/gfs2_ondisk.h>
-#include <linux/lm_interface.h>
#include <asm/uaccess.h>
+#include <linux/gfs2_ondisk.h>
#include "gfs2.h"
#include "incore.h"
#include "glock.h"
#include "quota.h"
#include "util.h"
-
-char *gfs2_sys_margs;
-spinlock_t gfs2_sys_margs_lock;
+#include "glops.h"
static ssize_t id_show(struct gfs2_sbd *sdp, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname);
}
+static int gfs2_uuid_valid(const u8 *uuid)
+{
+ int i;
+
+ for (i = 0; i < 16; i++) {
+ if (uuid[i])
+ return 1;
+ }
+ return 0;
+}
+
+static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf)
+{
+ const u8 *uuid = sdp->sd_sb.sb_uuid;
+ buf[0] = '\0';
+ if (!gfs2_uuid_valid(uuid))
+ return 0;
+ return snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X-%02X%02X-"
+ "%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n",
+ uuid[0], uuid[1], uuid[2], uuid[3], uuid[4], uuid[5],
+ uuid[6], uuid[7], uuid[8], uuid[9], uuid[10], uuid[11],
+ uuid[12], uuid[13], uuid[14], uuid[15]);
+}
+
static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf)
{
unsigned int count;
return len;
}
+static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+ struct gfs2_glock *gl;
+ const struct gfs2_glock_operations *glops;
+ unsigned int glmode;
+ unsigned int gltype;
+ unsigned long long glnum;
+ char mode[16];
+ int rv;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum,
+ mode);
+ if (rv != 3)
+ return -EINVAL;
+
+ if (strcmp(mode, "EX") == 0)
+ glmode = LM_ST_UNLOCKED;
+ else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0))
+ glmode = LM_ST_DEFERRED;
+ else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0))
+ glmode = LM_ST_SHARED;
+ else
+ return -EINVAL;
+
+ if (gltype > LM_TYPE_JOURNAL)
+ return -EINVAL;
+ glops = gfs2_glops_list[gltype];
+ if (glops == NULL)
+ return -EINVAL;
+ rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl);
+ if (rv)
+ return rv;
+ gfs2_glock_cb(gl, glmode);
+ gfs2_glock_put(gl);
+ return len;
+}
+
struct gfs2_attr {
struct attribute attr;
ssize_t (*show)(struct gfs2_sbd *, char *);
GFS2_ATTR(id, 0444, id_show, NULL);
GFS2_ATTR(fsname, 0444, fsname_show, NULL);
+GFS2_ATTR(uuid, 0444, uuid_show, NULL);
GFS2_ATTR(freeze, 0644, freeze_show, freeze_store);
GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store);
GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store);
GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store);
GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store);
+GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store);
static struct attribute *gfs2_attrs[] = {
&gfs2_attr_id.attr,
&gfs2_attr_fsname.attr,
+ &gfs2_attr_uuid.attr,
&gfs2_attr_freeze.attr,
&gfs2_attr_withdraw.attr,
&gfs2_attr_statfs_sync.attr,
&gfs2_attr_quota_sync.attr,
&gfs2_attr_quota_refresh_user.attr,
&gfs2_attr_quota_refresh_group.attr,
+ &gfs2_attr_demote_rq.attr,
NULL,
};
LOCKSTRUCT_ATTR(jid, "%u\n");
LOCKSTRUCT_ATTR(first, "%u\n");
-LOCKSTRUCT_ATTR(lvb_size, "%u\n");
-LOCKSTRUCT_ATTR(flags, "%d\n");
static struct attribute *lockstruct_attrs[] = {
&lockstruct_attr_jid.attr,
&lockstruct_attr_first.attr,
- &lockstruct_attr_lvb_size.attr,
- &lockstruct_attr_flags.attr,
+ NULL,
+};
+
+/*
+ * lock_module. Originally from lock_dlm
+ */
+
+static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf)
+{
+ const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops;
+ return sprintf(buf, "%s\n", ops->lm_proto_name);
+}
+
+static ssize_t block_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ ssize_t ret;
+ int val = 0;
+
+ if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags))
+ val = 1;
+ ret = sprintf(buf, "%d\n", val);
+ return ret;
+}
+
+static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ ssize_t ret = len;
+ int val;
+
+ val = simple_strtol(buf, NULL, 0);
+
+ if (val == 1)
+ set_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
+ else if (val == 0) {
+ clear_bit(DFL_BLOCK_LOCKS, &ls->ls_flags);
+ smp_mb__after_clear_bit();
+ gfs2_glock_thaw(sdp);
+ } else {
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+static ssize_t lkid_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%u\n", ls->ls_id);
+}
+
+static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%d\n", ls->ls_first);
+}
+
+static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%d\n", ls->ls_first_done);
+}
+
+static ssize_t recover_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%d\n", ls->ls_recover_jid);
+}
+
+static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
+{
+ struct gfs2_jdesc *jd;
+
+ spin_lock(&sdp->sd_jindex_spin);
+ list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
+ if (jd->jd_jid != jid)
+ continue;
+ jd->jd_dirty = 1;
+ break;
+ }
+ spin_unlock(&sdp->sd_jindex_spin);
+}
+
+static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ ls->ls_recover_jid = simple_strtol(buf, NULL, 0);
+ gfs2_jdesc_make_dirty(sdp, ls->ls_recover_jid);
+ if (sdp->sd_recoverd_process)
+ wake_up_process(sdp->sd_recoverd_process);
+ return len;
+}
+
+static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%d\n", ls->ls_recover_jid_done);
+}
+
+static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf)
+{
+ struct lm_lockstruct *ls = &sdp->sd_lockstruct;
+ return sprintf(buf, "%d\n", ls->ls_recover_jid_status);
+}
+
+struct gdlm_attr {
+ struct attribute attr;
+ ssize_t (*show)(struct gfs2_sbd *sdp, char *);
+ ssize_t (*store)(struct gfs2_sbd *sdp, const char *, size_t);
+};
+
+#define GDLM_ATTR(_name,_mode,_show,_store) \
+static struct gdlm_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store)
+
+GDLM_ATTR(proto_name, 0444, proto_name_show, NULL);
+GDLM_ATTR(block, 0644, block_show, block_store);
+GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store);
+GDLM_ATTR(id, 0444, lkid_show, NULL);
+GDLM_ATTR(first, 0444, lkfirst_show, NULL);
+GDLM_ATTR(first_done, 0444, first_done_show, NULL);
+GDLM_ATTR(recover, 0644, recover_show, recover_store);
+GDLM_ATTR(recover_done, 0444, recover_done_show, NULL);
+GDLM_ATTR(recover_status, 0444, recover_status_show, NULL);
+
+static struct attribute *lock_module_attrs[] = {
+ &gdlm_attr_proto_name.attr,
+ &gdlm_attr_block.attr,
+ &gdlm_attr_withdraw.attr,
+ &gdlm_attr_id.attr,
+ &lockstruct_attr_jid.attr,
+ &gdlm_attr_first.attr,
+ &gdlm_attr_first_done.attr,
+ &gdlm_attr_recover.attr,
+ &gdlm_attr_recover_done.attr,
+ &gdlm_attr_recover_status.attr,
NULL,
};
TUNE_ATTR(statfs_slow, 0);
TUNE_ATTR(new_files_jdata, 0);
TUNE_ATTR(quota_simul_sync, 1);
-TUNE_ATTR(quota_cache_secs, 1);
TUNE_ATTR(stall_secs, 1);
TUNE_ATTR(statfs_quantum, 1);
TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
&tune_attr_complain_secs.attr,
&tune_attr_statfs_slow.attr,
&tune_attr_quota_simul_sync.attr,
- &tune_attr_quota_cache_secs.attr,
&tune_attr_stall_secs.attr,
&tune_attr_statfs_quantum.attr,
&tune_attr_recoverd_secs.attr,
.attrs = tune_attrs,
};
+static struct attribute_group lock_module_group = {
+ .name = "lock_module",
+ .attrs = lock_module_attrs,
+};
+
int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
{
int error;
if (error)
goto fail_args;
+ error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group);
+ if (error)
+ goto fail_tune;
+
kobject_uevent(&sdp->sd_kobj, KOBJ_ADD);
return 0;
+fail_tune:
+ sysfs_remove_group(&sdp->sd_kobj, &tune_group);
fail_args:
sysfs_remove_group(&sdp->sd_kobj, &args_group);
fail_lockstruct:
sysfs_remove_group(&sdp->sd_kobj, &tune_group);
sysfs_remove_group(&sdp->sd_kobj, &args_group);
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
+ sysfs_remove_group(&sdp->sd_kobj, &lock_module_group);
kobject_put(&sdp->sd_kobj);
}
+
static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env)
{
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
+ const u8 *uuid = sdp->sd_sb.sb_uuid;
+
add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
+ if (gfs2_uuid_valid(uuid)) {
+ add_uevent_var(env, "UUID=%02X%02X%02X%02X-%02X%02X-%02X%02X-"
+ "%02X%02X-%02X%02X%02X%02X%02X%02X",
+ uuid[0], uuid[1], uuid[2], uuid[3], uuid[4],
+ uuid[5], uuid[6], uuid[7], uuid[8], uuid[9],
+ uuid[10], uuid[11], uuid[12], uuid[13],
+ uuid[14], uuid[15]);
+ }
return 0;
}
int gfs2_sys_init(void)
{
- gfs2_sys_margs = NULL;
- spin_lock_init(&gfs2_sys_margs_lock);
gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj);
if (!gfs2_kset)
return -ENOMEM;
void gfs2_sys_uninit(void)
{
- kfree(gfs2_sys_margs);
kset_unregister(gfs2_kset);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff