1b3b94faaSDavid Teigland /* 2b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 33a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 4b3b94faaSDavid Teigland * 5b3b94faaSDavid Teigland * This copyrighted material is made available to anyone wishing to use, 6b3b94faaSDavid Teigland * modify, copy, or redistribute it subject to the terms and conditions 7e9fc2aa0SSteven Whitehouse * of the GNU General Public License version 2. 8b3b94faaSDavid Teigland */ 9b3b94faaSDavid Teigland 10d77d1b58SJoe Perches #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 11d77d1b58SJoe Perches 12b3b94faaSDavid Teigland #include <linux/sched.h> 13*5b825c3aSIngo Molnar #include <linux/cred.h> 14b3b94faaSDavid Teigland #include <linux/spinlock.h> 15b3b94faaSDavid Teigland #include <linux/completion.h> 16b3b94faaSDavid Teigland #include <linux/buffer_head.h> 17b3b94faaSDavid Teigland #include <linux/module.h> 18b3b94faaSDavid Teigland #include <linux/kobject.h> 197c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 20f057f6cdSSteven Whitehouse #include <linux/gfs2_ondisk.h> 2131e54b01SSteven Whitehouse #include <linux/genhd.h> 22b3b94faaSDavid Teigland 23b3b94faaSDavid Teigland #include "gfs2.h" 245c676f6dSSteven Whitehouse #include "incore.h" 25b3b94faaSDavid Teigland #include "sys.h" 26b3b94faaSDavid Teigland #include "super.h" 27b3b94faaSDavid Teigland #include "glock.h" 28b3b94faaSDavid Teigland #include "quota.h" 295c676f6dSSteven Whitehouse #include "util.h" 3064d576baSSteven Whitehouse #include "glops.h" 316ecd7c2dSTejun Heo #include "recovery.h" 32b3b94faaSDavid Teigland 3348c2b613SSteven Whitehouse struct gfs2_attr { 3448c2b613SSteven Whitehouse struct attribute attr; 3548c2b613SSteven Whitehouse ssize_t (*show)(struct gfs2_sbd *, char *); 3648c2b613SSteven Whitehouse ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 3748c2b613SSteven Whitehouse }; 3848c2b613SSteven Whitehouse 3948c2b613SSteven Whitehouse static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, 4048c2b613SSteven Whitehouse char *buf) 4148c2b613SSteven Whitehouse { 4248c2b613SSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 4348c2b613SSteven Whitehouse struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 4448c2b613SSteven Whitehouse return a->show ? a->show(sdp, buf) : 0; 4548c2b613SSteven Whitehouse } 4648c2b613SSteven Whitehouse 4748c2b613SSteven Whitehouse static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, 4848c2b613SSteven Whitehouse const char *buf, size_t len) 4948c2b613SSteven Whitehouse { 5048c2b613SSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 5148c2b613SSteven Whitehouse struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 5248c2b613SSteven Whitehouse return a->store ? a->store(sdp, buf, len) : len; 5348c2b613SSteven Whitehouse } 5448c2b613SSteven Whitehouse 5552cf25d0SEmese Revfy static const struct sysfs_ops gfs2_attr_ops = { 5648c2b613SSteven Whitehouse .show = gfs2_attr_show, 5748c2b613SSteven Whitehouse .store = gfs2_attr_store, 5848c2b613SSteven Whitehouse }; 5948c2b613SSteven Whitehouse 6048c2b613SSteven Whitehouse 6148c2b613SSteven Whitehouse static struct kset *gfs2_kset; 6248c2b613SSteven Whitehouse 63b3b94faaSDavid Teigland static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) 64b3b94faaSDavid Teigland { 65c7227e46SBob Peterson return snprintf(buf, PAGE_SIZE, "%u:%u\n", 66c7227e46SBob Peterson MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev)); 67b3b94faaSDavid Teigland } 68b3b94faaSDavid Teigland 69b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 70b3b94faaSDavid Teigland { 713204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 72b3b94faaSDavid Teigland } 73b3b94faaSDavid Teigland 7402e3cc70SSteven Whitehouse static int gfs2_uuid_valid(const u8 *uuid) 7502e3cc70SSteven Whitehouse { 7602e3cc70SSteven Whitehouse int i; 7702e3cc70SSteven Whitehouse 7802e3cc70SSteven Whitehouse for (i = 0; i < 16; i++) { 7902e3cc70SSteven Whitehouse if (uuid[i]) 8002e3cc70SSteven Whitehouse return 1; 8102e3cc70SSteven Whitehouse } 8202e3cc70SSteven Whitehouse return 0; 8302e3cc70SSteven Whitehouse } 8402e3cc70SSteven Whitehouse 8502e3cc70SSteven Whitehouse static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf) 8602e3cc70SSteven Whitehouse { 8732e471efSSteven Whitehouse struct super_block *s = sdp->sd_vfs; 8832e471efSSteven Whitehouse const u8 *uuid = s->s_uuid; 8902e3cc70SSteven Whitehouse buf[0] = '\0'; 9002e3cc70SSteven Whitehouse if (!gfs2_uuid_valid(uuid)) 9102e3cc70SSteven Whitehouse return 0; 92f0b34ae6SJoe Perches return snprintf(buf, PAGE_SIZE, "%pUB\n", uuid); 9302e3cc70SSteven Whitehouse } 9402e3cc70SSteven Whitehouse 95b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 96b3b94faaSDavid Teigland { 97d564053fSSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 98d564053fSSteven Whitehouse int frozen = (sb->s_writers.frozen == SB_UNFROZEN) ? 0 : 1; 99b3b94faaSDavid Teigland 1003566c964Salex chen return snprintf(buf, PAGE_SIZE, "%d\n", frozen); 101b3b94faaSDavid Teigland } 102b3b94faaSDavid Teigland 103b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 104b3b94faaSDavid Teigland { 105e50ead48SFabian Frederick int error, n; 106e50ead48SFabian Frederick 107e50ead48SFabian Frederick error = kstrtoint(buf, 0, &n); 108e50ead48SFabian Frederick if (error) 109e50ead48SFabian Frederick return error; 110b3b94faaSDavid Teigland 111b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 11241735818SZhao Hongjiang return -EPERM; 113b3b94faaSDavid Teigland 114b3b94faaSDavid Teigland switch (n) { 115b3b94faaSDavid Teigland case 0: 116d564053fSSteven Whitehouse error = thaw_super(sdp->sd_vfs); 117b3b94faaSDavid Teigland break; 118b3b94faaSDavid Teigland case 1: 119d564053fSSteven Whitehouse error = freeze_super(sdp->sd_vfs); 120b3b94faaSDavid Teigland break; 121b3b94faaSDavid Teigland default: 122d564053fSSteven Whitehouse return -EINVAL; 123b3b94faaSDavid Teigland } 124b3b94faaSDavid Teigland 125d564053fSSteven Whitehouse if (error) { 126b3b94faaSDavid Teigland fs_warn(sdp, "freeze %d error %d", n, error); 127d564053fSSteven Whitehouse return error; 128d564053fSSteven Whitehouse } 129b3b94faaSDavid Teigland 130d564053fSSteven Whitehouse return len; 131b3b94faaSDavid Teigland } 132b3b94faaSDavid Teigland 133b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 134b3b94faaSDavid Teigland { 135b3b94faaSDavid Teigland unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags); 1363204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 137b3b94faaSDavid Teigland } 138b3b94faaSDavid Teigland 139b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 140b3b94faaSDavid Teigland { 141e50ead48SFabian Frederick int error, val; 142e50ead48SFabian Frederick 143b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 14441735818SZhao Hongjiang return -EPERM; 145b3b94faaSDavid Teigland 146e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 147e50ead48SFabian Frederick if (error) 148e50ead48SFabian Frederick return error; 149e50ead48SFabian Frederick 150e50ead48SFabian Frederick if (val != 1) 151b3b94faaSDavid Teigland return -EINVAL; 152b3b94faaSDavid Teigland 153cb94eb06SJoe Perches gfs2_lm_withdraw(sdp, "withdrawing from cluster at user's request\n"); 154cb94eb06SJoe Perches 155b3b94faaSDavid Teigland return len; 156b3b94faaSDavid Teigland } 157b3b94faaSDavid Teigland 158b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 159b3b94faaSDavid Teigland size_t len) 160b3b94faaSDavid Teigland { 161e50ead48SFabian Frederick int error, val; 162e50ead48SFabian Frederick 163b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 16441735818SZhao Hongjiang return -EPERM; 165b3b94faaSDavid Teigland 166e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 167e50ead48SFabian Frederick if (error) 168e50ead48SFabian Frederick return error; 169e50ead48SFabian Frederick 170e50ead48SFabian Frederick if (val != 1) 171b3b94faaSDavid Teigland return -EINVAL; 172b3b94faaSDavid Teigland 1738c42d637SSteven Whitehouse gfs2_statfs_sync(sdp->sd_vfs, 0); 174b3b94faaSDavid Teigland return len; 175b3b94faaSDavid Teigland } 176b3b94faaSDavid Teigland 177b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 178b3b94faaSDavid Teigland size_t len) 179b3b94faaSDavid Teigland { 180e50ead48SFabian Frederick int error, val; 181e50ead48SFabian Frederick 182b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 18341735818SZhao Hongjiang return -EPERM; 184b3b94faaSDavid Teigland 185e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 186e50ead48SFabian Frederick if (error) 187e50ead48SFabian Frederick return error; 188e50ead48SFabian Frederick 189e50ead48SFabian Frederick if (val != 1) 190b3b94faaSDavid Teigland return -EINVAL; 191b3b94faaSDavid Teigland 192ceed1723SJan Kara gfs2_quota_sync(sdp->sd_vfs, 0); 193b3b94faaSDavid Teigland return len; 194b3b94faaSDavid Teigland } 195b3b94faaSDavid Teigland 196b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 197b3b94faaSDavid Teigland size_t len) 198b3b94faaSDavid Teigland { 199ed87dabcSEric W. Biederman struct kqid qid; 200ea762338SSteven Whitehouse int error; 201cd915493SSteven Whitehouse u32 id; 202b3b94faaSDavid Teigland 203b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 20441735818SZhao Hongjiang return -EPERM; 205b3b94faaSDavid Teigland 206e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 207e50ead48SFabian Frederick if (error) 208e50ead48SFabian Frederick return error; 209b3b94faaSDavid Teigland 210ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), USRQUOTA, id); 211ed87dabcSEric W. Biederman if (!qid_valid(qid)) 212ed87dabcSEric W. Biederman return -EINVAL; 213ed87dabcSEric W. Biederman 214ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 215ea762338SSteven Whitehouse return error ? error : len; 216b3b94faaSDavid Teigland } 217b3b94faaSDavid Teigland 218b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 219b3b94faaSDavid Teigland size_t len) 220b3b94faaSDavid Teigland { 221ed87dabcSEric W. Biederman struct kqid qid; 222ea762338SSteven Whitehouse int error; 223cd915493SSteven Whitehouse u32 id; 224b3b94faaSDavid Teigland 225b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 22641735818SZhao Hongjiang return -EPERM; 227b3b94faaSDavid Teigland 228e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 229e50ead48SFabian Frederick if (error) 230e50ead48SFabian Frederick return error; 231b3b94faaSDavid Teigland 232ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), GRPQUOTA, id); 233ed87dabcSEric W. Biederman if (!qid_valid(qid)) 234ed87dabcSEric W. Biederman return -EINVAL; 235ed87dabcSEric W. Biederman 236ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 237ea762338SSteven Whitehouse return error ? error : len; 238b3b94faaSDavid Teigland } 239b3b94faaSDavid Teigland 24064d576baSSteven Whitehouse static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 24164d576baSSteven Whitehouse { 24264d576baSSteven Whitehouse struct gfs2_glock *gl; 24364d576baSSteven Whitehouse const struct gfs2_glock_operations *glops; 24464d576baSSteven Whitehouse unsigned int glmode; 24564d576baSSteven Whitehouse unsigned int gltype; 24664d576baSSteven Whitehouse unsigned long long glnum; 24764d576baSSteven Whitehouse char mode[16]; 24864d576baSSteven Whitehouse int rv; 24964d576baSSteven Whitehouse 25064d576baSSteven Whitehouse if (!capable(CAP_SYS_ADMIN)) 25141735818SZhao Hongjiang return -EPERM; 25264d576baSSteven Whitehouse 25364d576baSSteven Whitehouse rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum, 25464d576baSSteven Whitehouse mode); 25564d576baSSteven Whitehouse if (rv != 3) 25664d576baSSteven Whitehouse return -EINVAL; 25764d576baSSteven Whitehouse 25864d576baSSteven Whitehouse if (strcmp(mode, "EX") == 0) 25964d576baSSteven Whitehouse glmode = LM_ST_UNLOCKED; 26064d576baSSteven Whitehouse else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0)) 26164d576baSSteven Whitehouse glmode = LM_ST_DEFERRED; 26264d576baSSteven Whitehouse else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0)) 26364d576baSSteven Whitehouse glmode = LM_ST_SHARED; 26464d576baSSteven Whitehouse else 26564d576baSSteven Whitehouse return -EINVAL; 26664d576baSSteven Whitehouse 26764d576baSSteven Whitehouse if (gltype > LM_TYPE_JOURNAL) 26864d576baSSteven Whitehouse return -EINVAL; 26924972557SBenjamin Marzinski if (gltype == LM_TYPE_NONDISK && glnum == GFS2_FREEZE_LOCK) 27024972557SBenjamin Marzinski glops = &gfs2_freeze_glops; 27113466985SSteven Whitehouse else 27264d576baSSteven Whitehouse glops = gfs2_glops_list[gltype]; 27364d576baSSteven Whitehouse if (glops == NULL) 27464d576baSSteven Whitehouse return -EINVAL; 2756a99be5dSSteven Whitehouse if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags)) 276913a71d2SSteven Whitehouse fs_info(sdp, "demote interface used\n"); 27764d576baSSteven Whitehouse rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl); 27864d576baSSteven Whitehouse if (rv) 27964d576baSSteven Whitehouse return rv; 28064d576baSSteven Whitehouse gfs2_glock_cb(gl, glmode); 28164d576baSSteven Whitehouse gfs2_glock_put(gl); 28264d576baSSteven Whitehouse return len; 28364d576baSSteven Whitehouse } 28464d576baSSteven Whitehouse 285b3b94faaSDavid Teigland 286b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 287b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 288b3b94faaSDavid Teigland 289b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 290b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 29102e3cc70SSteven Whitehouse GFS2_ATTR(uuid, 0444, uuid_show, NULL); 292b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 293b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 294b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 295b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 296b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 297b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 29864d576baSSteven Whitehouse GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store); 299b3b94faaSDavid Teigland 300b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 301b3b94faaSDavid Teigland &gfs2_attr_id.attr, 302b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 30302e3cc70SSteven Whitehouse &gfs2_attr_uuid.attr, 304b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 305b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 306b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 307b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 308b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 309b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 31064d576baSSteven Whitehouse &gfs2_attr_demote_rq.attr, 311b3b94faaSDavid Teigland NULL, 312b3b94faaSDavid Teigland }; 313b3b94faaSDavid Teigland 3140d515210SBob Peterson static void gfs2_sbd_release(struct kobject *kobj) 3150d515210SBob Peterson { 3160d515210SBob Peterson struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 3170d515210SBob Peterson 3180d515210SBob Peterson kfree(sdp); 3190d515210SBob Peterson } 3200d515210SBob Peterson 321b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 3220d515210SBob Peterson .release = gfs2_sbd_release, 323b3b94faaSDavid Teigland .default_attrs = gfs2_attrs, 324b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 325b3b94faaSDavid Teigland }; 326b3b94faaSDavid Teigland 327f057f6cdSSteven Whitehouse 328f057f6cdSSteven Whitehouse /* 329f057f6cdSSteven Whitehouse * lock_module. Originally from lock_dlm 330f057f6cdSSteven Whitehouse */ 331f057f6cdSSteven Whitehouse 332f057f6cdSSteven Whitehouse static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf) 333f057f6cdSSteven Whitehouse { 334f057f6cdSSteven Whitehouse const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops; 335f057f6cdSSteven Whitehouse return sprintf(buf, "%s\n", ops->lm_proto_name); 336f057f6cdSSteven Whitehouse } 337f057f6cdSSteven Whitehouse 338f057f6cdSSteven Whitehouse static ssize_t block_show(struct gfs2_sbd *sdp, char *buf) 339f057f6cdSSteven Whitehouse { 340f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 341f057f6cdSSteven Whitehouse ssize_t ret; 342f057f6cdSSteven Whitehouse int val = 0; 343f057f6cdSSteven Whitehouse 344e0c2a9aaSDavid Teigland if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags)) 345f057f6cdSSteven Whitehouse val = 1; 346f057f6cdSSteven Whitehouse ret = sprintf(buf, "%d\n", val); 347f057f6cdSSteven Whitehouse return ret; 348f057f6cdSSteven Whitehouse } 349f057f6cdSSteven Whitehouse 350f057f6cdSSteven Whitehouse static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 351f057f6cdSSteven Whitehouse { 352f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 353e50ead48SFabian Frederick int ret, val; 354f057f6cdSSteven Whitehouse 355e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 356e50ead48SFabian Frederick if (ret) 357e50ead48SFabian Frederick return ret; 358f057f6cdSSteven Whitehouse 359f057f6cdSSteven Whitehouse if (val == 1) 360e0c2a9aaSDavid Teigland set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 361f057f6cdSSteven Whitehouse else if (val == 0) { 362e0c2a9aaSDavid Teigland clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 3634e857c58SPeter Zijlstra smp_mb__after_atomic(); 364f057f6cdSSteven Whitehouse gfs2_glock_thaw(sdp); 365f057f6cdSSteven Whitehouse } else { 366e50ead48SFabian Frederick return -EINVAL; 367f057f6cdSSteven Whitehouse } 368e50ead48SFabian Frederick return len; 369f057f6cdSSteven Whitehouse } 370f057f6cdSSteven Whitehouse 371fd95e81cSSteven Whitehouse static ssize_t wdack_show(struct gfs2_sbd *sdp, char *buf) 372fd95e81cSSteven Whitehouse { 373fd95e81cSSteven Whitehouse int val = completion_done(&sdp->sd_wdack) ? 1 : 0; 374fd95e81cSSteven Whitehouse 375fd95e81cSSteven Whitehouse return sprintf(buf, "%d\n", val); 376fd95e81cSSteven Whitehouse } 377fd95e81cSSteven Whitehouse 378fd95e81cSSteven Whitehouse static ssize_t wdack_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 379fd95e81cSSteven Whitehouse { 380e50ead48SFabian Frederick int ret, val; 381fd95e81cSSteven Whitehouse 382e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 383e50ead48SFabian Frederick if (ret) 384e50ead48SFabian Frederick return ret; 385fd95e81cSSteven Whitehouse 386fd95e81cSSteven Whitehouse if ((val == 1) && 387fd95e81cSSteven Whitehouse !strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm")) 388fd95e81cSSteven Whitehouse complete(&sdp->sd_wdack); 389fd95e81cSSteven Whitehouse else 390e50ead48SFabian Frederick return -EINVAL; 391e50ead48SFabian Frederick return len; 392fd95e81cSSteven Whitehouse } 393fd95e81cSSteven Whitehouse 394f057f6cdSSteven Whitehouse static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 395f057f6cdSSteven Whitehouse { 396f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 397f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first); 398f057f6cdSSteven Whitehouse } 399f057f6cdSSteven Whitehouse 400ba6e9364SSteven Whitehouse static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 401ba6e9364SSteven Whitehouse { 402ba6e9364SSteven Whitehouse unsigned first; 403ba6e9364SSteven Whitehouse int rv; 404ba6e9364SSteven Whitehouse 405ba6e9364SSteven Whitehouse rv = sscanf(buf, "%u", &first); 406ba6e9364SSteven Whitehouse if (rv != 1 || first > 1) 407ba6e9364SSteven Whitehouse return -EINVAL; 4083942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 4093942ae53SSteven Whitehouse if (rv) 4103942ae53SSteven Whitehouse return rv; 411ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 412ba6e9364SSteven Whitehouse rv = -EBUSY; 413ba6e9364SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 414ba6e9364SSteven Whitehouse goto out; 415ba6e9364SSteven Whitehouse rv = -EINVAL; 416ba6e9364SSteven Whitehouse if (sdp->sd_args.ar_spectator) 417ba6e9364SSteven Whitehouse goto out; 418ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 419ba6e9364SSteven Whitehouse goto out; 420ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_first = first; 421ba6e9364SSteven Whitehouse rv = 0; 422ba6e9364SSteven Whitehouse out: 423ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 424ba6e9364SSteven Whitehouse return rv ? rv : len; 425ba6e9364SSteven Whitehouse } 426ba6e9364SSteven Whitehouse 427f057f6cdSSteven Whitehouse static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf) 428f057f6cdSSteven Whitehouse { 429f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 430e0c2a9aaSDavid Teigland return sprintf(buf, "%d\n", !!test_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags)); 431f057f6cdSSteven Whitehouse } 432f057f6cdSSteven Whitehouse 433e0c2a9aaSDavid Teigland int gfs2_recover_set(struct gfs2_sbd *sdp, unsigned jid) 434f057f6cdSSteven Whitehouse { 435f057f6cdSSteven Whitehouse struct gfs2_jdesc *jd; 436fe64d517SSteven Whitehouse int rv; 437f057f6cdSSteven Whitehouse 4380e48e055SBob Peterson /* Wait for our primary journal to be initialized */ 4390e48e055SBob Peterson wait_for_completion(&sdp->sd_journal_ready); 4400e48e055SBob Peterson 441f057f6cdSSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 442fe64d517SSteven Whitehouse rv = -EBUSY; 443fe64d517SSteven Whitehouse if (sdp->sd_jdesc->jd_jid == jid) 444fe64d517SSteven Whitehouse goto out; 445fe64d517SSteven Whitehouse rv = -ENOENT; 446f057f6cdSSteven Whitehouse list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { 447f057f6cdSSteven Whitehouse if (jd->jd_jid != jid) 448f057f6cdSSteven Whitehouse continue; 4496ecd7c2dSTejun Heo rv = gfs2_recover_journal(jd, false); 450f057f6cdSSteven Whitehouse break; 451f057f6cdSSteven Whitehouse } 452fe64d517SSteven Whitehouse out: 453f057f6cdSSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 454e0c2a9aaSDavid Teigland return rv; 455e0c2a9aaSDavid Teigland } 456e0c2a9aaSDavid Teigland 457e0c2a9aaSDavid Teigland static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 458e0c2a9aaSDavid Teigland { 459e0c2a9aaSDavid Teigland unsigned jid; 460e0c2a9aaSDavid Teigland int rv; 461e0c2a9aaSDavid Teigland 462e0c2a9aaSDavid Teigland rv = sscanf(buf, "%u", &jid); 463e0c2a9aaSDavid Teigland if (rv != 1) 464e0c2a9aaSDavid Teigland return -EINVAL; 465e0c2a9aaSDavid Teigland 4661a058f52SDavid Teigland if (test_bit(SDF_NORECOVERY, &sdp->sd_flags)) { 4671a058f52SDavid Teigland rv = -ESHUTDOWN; 4681a058f52SDavid Teigland goto out; 4691a058f52SDavid Teigland } 470e0c2a9aaSDavid Teigland 4711a058f52SDavid Teigland rv = gfs2_recover_set(sdp, jid); 4721a058f52SDavid Teigland out: 473fe64d517SSteven Whitehouse return rv ? rv : len; 474f057f6cdSSteven Whitehouse } 475f057f6cdSSteven Whitehouse 476f057f6cdSSteven Whitehouse static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf) 477f057f6cdSSteven Whitehouse { 478f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 479f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_done); 480f057f6cdSSteven Whitehouse } 481f057f6cdSSteven Whitehouse 482f057f6cdSSteven Whitehouse static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf) 483f057f6cdSSteven Whitehouse { 484f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 485f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_status); 486f057f6cdSSteven Whitehouse } 487f057f6cdSSteven Whitehouse 488e1b28aabSSteven Whitehouse static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf) 489e1b28aabSSteven Whitehouse { 490feb47ca9SSteven Whitehouse return sprintf(buf, "%d\n", sdp->sd_lockstruct.ls_jid); 491e1b28aabSSteven Whitehouse } 492e1b28aabSSteven Whitehouse 493ba6e9364SSteven Whitehouse static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 494ba6e9364SSteven Whitehouse { 495feb47ca9SSteven Whitehouse int jid; 496ba6e9364SSteven Whitehouse int rv; 497ba6e9364SSteven Whitehouse 498feb47ca9SSteven Whitehouse rv = sscanf(buf, "%d", &jid); 499ba6e9364SSteven Whitehouse if (rv != 1) 500ba6e9364SSteven Whitehouse return -EINVAL; 5013942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 5023942ae53SSteven Whitehouse if (rv) 5033942ae53SSteven Whitehouse return rv; 504ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 505ba6e9364SSteven Whitehouse rv = -EINVAL; 506ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 507ba6e9364SSteven Whitehouse goto out; 508ba6e9364SSteven Whitehouse rv = -EBUSY; 509feb47ca9SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 510ba6e9364SSteven Whitehouse goto out; 511feb47ca9SSteven Whitehouse rv = 0; 512feb47ca9SSteven Whitehouse if (sdp->sd_args.ar_spectator && jid > 0) 513feb47ca9SSteven Whitehouse rv = jid = -EINVAL; 514ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_jid = jid; 515feb47ca9SSteven Whitehouse clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); 5164e857c58SPeter Zijlstra smp_mb__after_atomic(); 517ba6e9364SSteven Whitehouse wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); 518ba6e9364SSteven Whitehouse out: 519ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 520ba6e9364SSteven Whitehouse return rv ? rv : len; 521ba6e9364SSteven Whitehouse } 522ba6e9364SSteven Whitehouse 523f057f6cdSSteven Whitehouse #define GDLM_ATTR(_name,_mode,_show,_store) \ 52448c2b613SSteven Whitehouse static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) 525f057f6cdSSteven Whitehouse 526f057f6cdSSteven Whitehouse GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 527f057f6cdSSteven Whitehouse GDLM_ATTR(block, 0644, block_show, block_store); 528fd95e81cSSteven Whitehouse GDLM_ATTR(withdraw, 0644, wdack_show, wdack_store); 529ba6e9364SSteven Whitehouse GDLM_ATTR(jid, 0644, jid_show, jid_store); 530ba6e9364SSteven Whitehouse GDLM_ATTR(first, 0644, lkfirst_show, lkfirst_store); 531f057f6cdSSteven Whitehouse GDLM_ATTR(first_done, 0444, first_done_show, NULL); 532d7e623daSSteven Whitehouse GDLM_ATTR(recover, 0600, NULL, recover_store); 533f057f6cdSSteven Whitehouse GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); 534f057f6cdSSteven Whitehouse GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); 535f057f6cdSSteven Whitehouse 536f057f6cdSSteven Whitehouse static struct attribute *lock_module_attrs[] = { 537f057f6cdSSteven Whitehouse &gdlm_attr_proto_name.attr, 538f057f6cdSSteven Whitehouse &gdlm_attr_block.attr, 539f057f6cdSSteven Whitehouse &gdlm_attr_withdraw.attr, 540e1b28aabSSteven Whitehouse &gdlm_attr_jid.attr, 541f057f6cdSSteven Whitehouse &gdlm_attr_first.attr, 542f057f6cdSSteven Whitehouse &gdlm_attr_first_done.attr, 543f057f6cdSSteven Whitehouse &gdlm_attr_recover.attr, 544f057f6cdSSteven Whitehouse &gdlm_attr_recover_done.attr, 545f057f6cdSSteven Whitehouse &gdlm_attr_recover_status.attr, 546ea67eedbSSteven Whitehouse NULL, 547b3b94faaSDavid Teigland }; 548b3b94faaSDavid Teigland 549b3b94faaSDavid Teigland /* 550b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 551b3b94faaSDavid Teigland */ 552b3b94faaSDavid Teigland 553b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 554b3b94faaSDavid Teigland { 5553204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 5563204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 557b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 558b3b94faaSDavid Teigland } 559b3b94faaSDavid Teigland 560b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 561b3b94faaSDavid Teigland size_t len) 562b3b94faaSDavid Teigland { 563b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 564b3b94faaSDavid Teigland unsigned int x, y; 565b3b94faaSDavid Teigland 566b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 56741735818SZhao Hongjiang return -EPERM; 568b3b94faaSDavid Teigland 569b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 570b3b94faaSDavid Teigland return -EINVAL; 571b3b94faaSDavid Teigland 572b3b94faaSDavid Teigland spin_lock(>->gt_spin); 573b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 574b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 575b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 576b3b94faaSDavid Teigland return len; 577b3b94faaSDavid Teigland } 578b3b94faaSDavid Teigland 579b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 580b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 581b3b94faaSDavid Teigland { 582b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 583b3b94faaSDavid Teigland unsigned int x; 584e50ead48SFabian Frederick int error; 585b3b94faaSDavid Teigland 586b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 58741735818SZhao Hongjiang return -EPERM; 588b3b94faaSDavid Teigland 589e50ead48SFabian Frederick error = kstrtouint(buf, 0, &x); 590e50ead48SFabian Frederick if (error) 591e50ead48SFabian Frederick return error; 592b3b94faaSDavid Teigland 593b3b94faaSDavid Teigland if (check_zero && !x) 594b3b94faaSDavid Teigland return -EINVAL; 595b3b94faaSDavid Teigland 596b3b94faaSDavid Teigland spin_lock(>->gt_spin); 597b3b94faaSDavid Teigland *field = x; 598b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 599b3b94faaSDavid Teigland return len; 600b3b94faaSDavid Teigland } 601b3b94faaSDavid Teigland 602b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 60348c2b613SSteven Whitehouse static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store) 604b3b94faaSDavid Teigland 605b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 606b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 607b3b94faaSDavid Teigland { \ 6083204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 609b3b94faaSDavid Teigland } \ 610b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 611b3b94faaSDavid Teigland 612b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 613b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 614b3b94faaSDavid Teigland { \ 615b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 616b3b94faaSDavid Teigland } \ 617b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 618b3b94faaSDavid Teigland 619b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 620b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 621b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 622b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 623b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 624b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 625b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 626b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 627b3b94faaSDavid Teigland 628b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 629b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 630b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 631b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 632b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 633b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 634b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 635b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 636b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 637ea67eedbSSteven Whitehouse NULL, 638b3b94faaSDavid Teigland }; 639b3b94faaSDavid Teigland 640b3b94faaSDavid Teigland static struct attribute_group tune_group = { 641b3b94faaSDavid Teigland .name = "tune", 642ea67eedbSSteven Whitehouse .attrs = tune_attrs, 643b3b94faaSDavid Teigland }; 644b3b94faaSDavid Teigland 645f057f6cdSSteven Whitehouse static struct attribute_group lock_module_group = { 646f057f6cdSSteven Whitehouse .name = "lock_module", 647f057f6cdSSteven Whitehouse .attrs = lock_module_attrs, 648f057f6cdSSteven Whitehouse }; 649f057f6cdSSteven Whitehouse 650b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 651b3b94faaSDavid Teigland { 652440d6da2SSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 653b3b94faaSDavid Teigland int error; 654440d6da2SSteven Whitehouse char ro[20]; 655440d6da2SSteven Whitehouse char spectator[20]; 656440d6da2SSteven Whitehouse char *envp[] = { ro, spectator, NULL }; 6570d515210SBob Peterson int sysfs_frees_sdp = 0; 658440d6da2SSteven Whitehouse 659440d6da2SSteven Whitehouse sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0); 660440d6da2SSteven Whitehouse sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); 661b3b94faaSDavid Teigland 6629bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 663901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 664901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 665b3b94faaSDavid Teigland if (error) 6660d515210SBob Peterson goto fail_reg; 667b3b94faaSDavid Teigland 6680d515210SBob Peterson sysfs_frees_sdp = 1; /* Freeing sdp is now done by sysfs calling 6690d515210SBob Peterson function gfs2_sbd_release. */ 670b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 671b3b94faaSDavid Teigland if (error) 672f6eb5349SSteven Whitehouse goto fail_reg; 673b3b94faaSDavid Teigland 674f057f6cdSSteven Whitehouse error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group); 675f057f6cdSSteven Whitehouse if (error) 676f057f6cdSSteven Whitehouse goto fail_tune; 677f057f6cdSSteven Whitehouse 67831e54b01SSteven Whitehouse error = sysfs_create_link(&sdp->sd_kobj, 67931e54b01SSteven Whitehouse &disk_to_dev(sb->s_bdev->bd_disk)->kobj, 68031e54b01SSteven Whitehouse "device"); 68131e54b01SSteven Whitehouse if (error) 68231e54b01SSteven Whitehouse goto fail_lock_module; 68331e54b01SSteven Whitehouse 684440d6da2SSteven Whitehouse kobject_uevent_env(&sdp->sd_kobj, KOBJ_ADD, envp); 685b3b94faaSDavid Teigland return 0; 686b3b94faaSDavid Teigland 68731e54b01SSteven Whitehouse fail_lock_module: 68831e54b01SSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 689f057f6cdSSteven Whitehouse fail_tune: 690f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &tune_group); 691b3b94faaSDavid Teigland fail_reg: 6920d515210SBob Peterson free_percpu(sdp->sd_lkstats); 69365952fb4SDavid Teigland fs_err(sdp, "error %d adding sysfs files", error); 6940d515210SBob Peterson if (sysfs_frees_sdp) 6950d515210SBob Peterson kobject_put(&sdp->sd_kobj); 6960d515210SBob Peterson else 6970d515210SBob Peterson kfree(sdp); 6980d515210SBob Peterson sb->s_fs_info = NULL; 699b3b94faaSDavid Teigland return error; 700b3b94faaSDavid Teigland } 701b3b94faaSDavid Teigland 702b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 703b3b94faaSDavid Teigland { 70431e54b01SSteven Whitehouse sysfs_remove_link(&sdp->sd_kobj, "device"); 705b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 706f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 707197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 708b3b94faaSDavid Teigland } 709b3b94faaSDavid Teigland 710fdd1062eSSteven Whitehouse static int gfs2_uevent(struct kset *kset, struct kobject *kobj, 711fdd1062eSSteven Whitehouse struct kobj_uevent_env *env) 712fdd1062eSSteven Whitehouse { 713fdd1062eSSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 71432e471efSSteven Whitehouse struct super_block *s = sdp->sd_vfs; 71532e471efSSteven Whitehouse const u8 *uuid = s->s_uuid; 71602e3cc70SSteven Whitehouse 717fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 718fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 719ba6e9364SSteven Whitehouse if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) 720feb47ca9SSteven Whitehouse add_uevent_var(env, "JOURNALID=%d", sdp->sd_lockstruct.ls_jid); 721f0b34ae6SJoe Perches if (gfs2_uuid_valid(uuid)) 722f0b34ae6SJoe Perches add_uevent_var(env, "UUID=%pUB", uuid); 723fdd1062eSSteven Whitehouse return 0; 724fdd1062eSSteven Whitehouse } 725fdd1062eSSteven Whitehouse 7269cd43611SEmese Revfy static const struct kset_uevent_ops gfs2_uevent_ops = { 727fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 728fdd1062eSSteven Whitehouse }; 729fdd1062eSSteven Whitehouse 730b3b94faaSDavid Teigland int gfs2_sys_init(void) 731b3b94faaSDavid Teigland { 732fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 7339bec101aSGreg Kroah-Hartman if (!gfs2_kset) 7349bec101aSGreg Kroah-Hartman return -ENOMEM; 7359bec101aSGreg Kroah-Hartman return 0; 736b3b94faaSDavid Teigland } 737b3b94faaSDavid Teigland 738b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 739b3b94faaSDavid Teigland { 7409bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 741b3b94faaSDavid Teigland } 742b3b94faaSDavid Teigland 743