| /* |
| * 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/module.h> |
| #include <linux/kobject.h> |
| #include <asm/uaccess.h> |
| #include <linux/gfs2_ondisk.h> |
| |
| #include "gfs2.h" |
| #include "incore.h" |
| #include "sys.h" |
| #include "super.h" |
| #include "glock.h" |
| #include "quota.h" |
| #include "util.h" |
| #include "glops.h" |
| |
| struct gfs2_attr { |
| struct attribute attr; |
| ssize_t (*show)(struct gfs2_sbd *, char *); |
| ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); |
| }; |
| |
| static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, |
| char *buf) |
| { |
| struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); |
| struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); |
| return a->show ? a->show(sdp, buf) : 0; |
| } |
| |
| static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, |
| const char *buf, size_t len) |
| { |
| struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); |
| struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); |
| return a->store ? a->store(sdp, buf, len) : len; |
| } |
| |
| static struct sysfs_ops gfs2_attr_ops = { |
| .show = gfs2_attr_show, |
| .store = gfs2_attr_store, |
| }; |
| |
| |
| static struct kset *gfs2_kset; |
| |
| static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u:%u\n", |
| MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev)); |
| } |
| |
| static ssize_t fsname_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; |
| |
| mutex_lock(&sdp->sd_freeze_lock); |
| count = sdp->sd_freeze_count; |
| mutex_unlock(&sdp->sd_freeze_lock); |
| |
| return snprintf(buf, PAGE_SIZE, "%u\n", count); |
| } |
| |
| static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) |
| { |
| ssize_t ret = len; |
| int error = 0; |
| int n = simple_strtol(buf, NULL, 0); |
| |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| switch (n) { |
| case 0: |
| gfs2_unfreeze_fs(sdp); |
| break; |
| case 1: |
| error = gfs2_freeze_fs(sdp); |
| break; |
| default: |
| ret = -EINVAL; |
| } |
| |
| if (error) |
| fs_warn(sdp, "freeze %d error %d", n, error); |
| |
| return ret; |
| } |
| |
| static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) |
| { |
| unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags); |
| return snprintf(buf, PAGE_SIZE, "%u\n", b); |
| } |
| |
| static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) |
| { |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| if (simple_strtol(buf, NULL, 0) != 1) |
| return -EINVAL; |
| |
| gfs2_lm_withdraw(sdp, |
| "GFS2: fsid=%s: withdrawing from cluster at user's request\n", |
| sdp->sd_fsname); |
| return len; |
| } |
| |
| static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, |
| size_t len) |
| { |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| if (simple_strtol(buf, NULL, 0) != 1) |
| return -EINVAL; |
| |
| gfs2_statfs_sync(sdp); |
| return len; |
| } |
| |
| static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, |
| size_t len) |
| { |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| if (simple_strtol(buf, NULL, 0) != 1) |
| return -EINVAL; |
| |
| gfs2_quota_sync(sdp); |
| return len; |
| } |
| |
| static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, |
| size_t len) |
| { |
| u32 id; |
| |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| id = simple_strtoul(buf, NULL, 0); |
| |
| gfs2_quota_refresh(sdp, 1, id); |
| return len; |
| } |
| |
| static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, |
| size_t len) |
| { |
| u32 id; |
| |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| id = simple_strtoul(buf, NULL, 0); |
| |
| gfs2_quota_refresh(sdp, 0, id); |
| 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; |
| } |
| |
| |
| #define GFS2_ATTR(name, mode, show, store) \ |
| static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) |
| |
| 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, |
| }; |
| |
| static struct kobj_type gfs2_ktype = { |
| .default_attrs = gfs2_attrs, |
| .sysfs_ops = &gfs2_attr_ops, |
| }; |
| |
| /* |
| * display struct lm_lockstruct fields |
| */ |
| |
| #define LOCKSTRUCT_ATTR(name, fmt) \ |
| static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ |
| { \ |
| return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_lockstruct.ls_##name); \ |
| } \ |
| static struct gfs2_attr lockstruct_attr_##name = __ATTR_RO(name) |
| |
| LOCKSTRUCT_ATTR(jid, "%u\n"); |
| LOCKSTRUCT_ATTR(first, "%u\n"); |
| |
| static struct attribute *lockstruct_attrs[] = { |
| &lockstruct_attr_jid.attr, |
| &lockstruct_attr_first.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); |
| } |
| |
| #define GDLM_ATTR(_name,_mode,_show,_store) \ |
| static struct gfs2_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, |
| }; |
| |
| #define ARGS_ATTR(name, fmt) \ |
| static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ |
| { \ |
| return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_args.ar_##name); \ |
| } \ |
| static struct gfs2_attr args_attr_##name = __ATTR_RO(name) |
| |
| ARGS_ATTR(lockproto, "%s\n"); |
| ARGS_ATTR(locktable, "%s\n"); |
| ARGS_ATTR(hostdata, "%s\n"); |
| ARGS_ATTR(spectator, "%d\n"); |
| ARGS_ATTR(ignore_local_fs, "%d\n"); |
| ARGS_ATTR(localcaching, "%d\n"); |
| ARGS_ATTR(localflocks, "%d\n"); |
| ARGS_ATTR(debug, "%d\n"); |
| ARGS_ATTR(upgrade, "%d\n"); |
| ARGS_ATTR(posix_acl, "%d\n"); |
| ARGS_ATTR(quota, "%u\n"); |
| ARGS_ATTR(suiddir, "%d\n"); |
| ARGS_ATTR(data, "%d\n"); |
| |
| static struct attribute *args_attrs[] = { |
| &args_attr_lockproto.attr, |
| &args_attr_locktable.attr, |
| &args_attr_hostdata.attr, |
| &args_attr_spectator.attr, |
| &args_attr_ignore_local_fs.attr, |
| &args_attr_localcaching.attr, |
| &args_attr_localflocks.attr, |
| &args_attr_debug.attr, |
| &args_attr_upgrade.attr, |
| &args_attr_posix_acl.attr, |
| &args_attr_quota.attr, |
| &args_attr_suiddir.attr, |
| &args_attr_data.attr, |
| NULL, |
| }; |
| |
| /* |
| * get and set struct gfs2_tune fields |
| */ |
| |
| static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, "%u %u\n", |
| sdp->sd_tune.gt_quota_scale_num, |
| sdp->sd_tune.gt_quota_scale_den); |
| } |
| |
| static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, |
| size_t len) |
| { |
| struct gfs2_tune *gt = &sdp->sd_tune; |
| unsigned int x, y; |
| |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) |
| return -EINVAL; |
| |
| spin_lock(>->gt_spin); |
| gt->gt_quota_scale_num = x; |
| gt->gt_quota_scale_den = y; |
| spin_unlock(>->gt_spin); |
| return len; |
| } |
| |
| static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, |
| int check_zero, const char *buf, size_t len) |
| { |
| struct gfs2_tune *gt = &sdp->sd_tune; |
| unsigned int x; |
| |
| if (!capable(CAP_SYS_ADMIN)) |
| return -EACCES; |
| |
| x = simple_strtoul(buf, NULL, 0); |
| |
| if (check_zero && !x) |
| return -EINVAL; |
| |
| spin_lock(>->gt_spin); |
| *field = x; |
| spin_unlock(>->gt_spin); |
| return len; |
| } |
| |
| #define TUNE_ATTR_3(name, show, store) \ |
| static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store) |
| |
| #define TUNE_ATTR_2(name, store) \ |
| static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ |
| { \ |
| return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ |
| } \ |
| TUNE_ATTR_3(name, name##_show, store) |
| |
| #define TUNE_ATTR(name, check_zero) \ |
| static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ |
| { \ |
| return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ |
| } \ |
| TUNE_ATTR_2(name, name##_store) |
| |
| TUNE_ATTR(incore_log_blocks, 0); |
| TUNE_ATTR(log_flush_secs, 0); |
| TUNE_ATTR(quota_warn_period, 0); |
| TUNE_ATTR(quota_quantum, 0); |
| TUNE_ATTR(max_readahead, 0); |
| TUNE_ATTR(complain_secs, 0); |
| TUNE_ATTR(statfs_slow, 0); |
| TUNE_ATTR(new_files_jdata, 0); |
| TUNE_ATTR(quota_simul_sync, 1); |
| TUNE_ATTR(stall_secs, 1); |
| TUNE_ATTR(statfs_quantum, 1); |
| TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); |
| |
| static struct attribute *tune_attrs[] = { |
| &tune_attr_incore_log_blocks.attr, |
| &tune_attr_log_flush_secs.attr, |
| &tune_attr_quota_warn_period.attr, |
| &tune_attr_quota_quantum.attr, |
| &tune_attr_max_readahead.attr, |
| &tune_attr_complain_secs.attr, |
| &tune_attr_statfs_slow.attr, |
| &tune_attr_quota_simul_sync.attr, |
| &tune_attr_stall_secs.attr, |
| &tune_attr_statfs_quantum.attr, |
| &tune_attr_quota_scale.attr, |
| &tune_attr_new_files_jdata.attr, |
| NULL, |
| }; |
| |
| static struct attribute_group lockstruct_group = { |
| .name = "lockstruct", |
| .attrs = lockstruct_attrs, |
| }; |
| |
| static struct attribute_group args_group = { |
| .name = "args", |
| .attrs = args_attrs, |
| }; |
| |
| static struct attribute_group tune_group = { |
| .name = "tune", |
| .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; |
| |
| sdp->sd_kobj.kset = gfs2_kset; |
| error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, |
| "%s", sdp->sd_table_name); |
| if (error) |
| goto fail; |
| |
| error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group); |
| if (error) |
| goto fail_reg; |
| |
| error = sysfs_create_group(&sdp->sd_kobj, &args_group); |
| if (error) |
| goto fail_lockstruct; |
| |
| error = sysfs_create_group(&sdp->sd_kobj, &tune_group); |
| 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, &lockstruct_group); |
| fail_reg: |
| kobject_put(&sdp->sd_kobj); |
| fail: |
| fs_err(sdp, "error %d adding sysfs files", error); |
| return error; |
| } |
| |
| 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, &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; |
| } |
| |
| static struct kset_uevent_ops gfs2_uevent_ops = { |
| .uevent = gfs2_uevent, |
| }; |
| |
| |
| int gfs2_sys_init(void) |
| { |
| gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); |
| if (!gfs2_kset) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| void gfs2_sys_uninit(void) |
| { |
| kset_unregister(gfs2_kset); |
| } |
| |