17336d0e6SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2b3b94faaSDavid Teigland /* 3b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 43a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 5b3b94faaSDavid Teigland */ 6b3b94faaSDavid Teigland 7d77d1b58SJoe Perches #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 8d77d1b58SJoe Perches 9b3b94faaSDavid Teigland #include <linux/sched.h> 105b825c3aSIngo Molnar #include <linux/cred.h> 11b3b94faaSDavid Teigland #include <linux/spinlock.h> 12b3b94faaSDavid Teigland #include <linux/completion.h> 13b3b94faaSDavid Teigland #include <linux/buffer_head.h> 14b3b94faaSDavid Teigland #include <linux/module.h> 15b3b94faaSDavid Teigland #include <linux/kobject.h> 167c0f6ba6SLinus Torvalds #include <linux/uaccess.h> 17f057f6cdSSteven Whitehouse #include <linux/gfs2_ondisk.h> 18322cbb50SChristoph Hellwig #include <linux/blkdev.h> 19b3b94faaSDavid Teigland 20b3b94faaSDavid Teigland #include "gfs2.h" 215c676f6dSSteven Whitehouse #include "incore.h" 22b3b94faaSDavid Teigland #include "sys.h" 23b3b94faaSDavid Teigland #include "super.h" 24b3b94faaSDavid Teigland #include "glock.h" 25b3b94faaSDavid Teigland #include "quota.h" 265c676f6dSSteven Whitehouse #include "util.h" 2764d576baSSteven Whitehouse #include "glops.h" 286ecd7c2dSTejun Heo #include "recovery.h" 29b3b94faaSDavid Teigland 3048c2b613SSteven Whitehouse struct gfs2_attr { 3148c2b613SSteven Whitehouse struct attribute attr; 3248c2b613SSteven Whitehouse ssize_t (*show)(struct gfs2_sbd *, char *); 3348c2b613SSteven Whitehouse ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 3448c2b613SSteven Whitehouse }; 3548c2b613SSteven Whitehouse 3648c2b613SSteven Whitehouse static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, 3748c2b613SSteven Whitehouse char *buf) 3848c2b613SSteven Whitehouse { 3948c2b613SSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 4048c2b613SSteven Whitehouse struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 4148c2b613SSteven Whitehouse return a->show ? a->show(sdp, buf) : 0; 4248c2b613SSteven Whitehouse } 4348c2b613SSteven Whitehouse 4448c2b613SSteven Whitehouse static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, 4548c2b613SSteven Whitehouse const char *buf, size_t len) 4648c2b613SSteven Whitehouse { 4748c2b613SSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 4848c2b613SSteven Whitehouse struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 4948c2b613SSteven Whitehouse return a->store ? a->store(sdp, buf, len) : len; 5048c2b613SSteven Whitehouse } 5148c2b613SSteven Whitehouse 5252cf25d0SEmese Revfy static const struct sysfs_ops gfs2_attr_ops = { 5348c2b613SSteven Whitehouse .show = gfs2_attr_show, 5448c2b613SSteven Whitehouse .store = gfs2_attr_store, 5548c2b613SSteven Whitehouse }; 5648c2b613SSteven Whitehouse 5748c2b613SSteven Whitehouse 5848c2b613SSteven Whitehouse static struct kset *gfs2_kset; 5948c2b613SSteven Whitehouse 60b3b94faaSDavid Teigland static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) 61b3b94faaSDavid Teigland { 62c7227e46SBob Peterson return snprintf(buf, PAGE_SIZE, "%u:%u\n", 63c7227e46SBob Peterson MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev)); 64b3b94faaSDavid Teigland } 65b3b94faaSDavid Teigland 669f9eb5a5SBob Peterson static ssize_t status_show(struct gfs2_sbd *sdp, char *buf) 679f9eb5a5SBob Peterson { 689f9eb5a5SBob Peterson unsigned long f = sdp->sd_flags; 699f9eb5a5SBob Peterson ssize_t s; 709f9eb5a5SBob Peterson 719f9eb5a5SBob Peterson s = snprintf(buf, PAGE_SIZE, 729f9eb5a5SBob Peterson "Journal Checked: %d\n" 739f9eb5a5SBob Peterson "Journal Live: %d\n" 749f9eb5a5SBob Peterson "Journal ID: %d\n" 759f9eb5a5SBob Peterson "Spectator: %d\n" 769f9eb5a5SBob Peterson "Withdrawn: %d\n" 779f9eb5a5SBob Peterson "No barriers: %d\n" 789f9eb5a5SBob Peterson "No recovery: %d\n" 799f9eb5a5SBob Peterson "Demote: %d\n" 809f9eb5a5SBob Peterson "No Journal ID: %d\n" 819f9eb5a5SBob Peterson "Mounted RO: %d\n" 829f9eb5a5SBob Peterson "RO Recovery: %d\n" 839f9eb5a5SBob Peterson "Skip DLM Unlock: %d\n" 849f9eb5a5SBob Peterson "Force AIL Flush: %d\n" 859f9eb5a5SBob Peterson "FS Frozen: %d\n" 869f9eb5a5SBob Peterson "Withdrawing: %d\n" 879f9eb5a5SBob Peterson "Withdraw In Prog: %d\n" 889f9eb5a5SBob Peterson "Remote Withdraw: %d\n" 899f9eb5a5SBob Peterson "Withdraw Recovery: %d\n" 909f9eb5a5SBob Peterson "sd_log_error: %d\n" 919f9eb5a5SBob Peterson "sd_log_flush_lock: %d\n" 929f9eb5a5SBob Peterson "sd_log_num_revoke: %u\n" 939f9eb5a5SBob Peterson "sd_log_in_flight: %d\n" 949f9eb5a5SBob Peterson "sd_log_blks_needed: %d\n" 959f9eb5a5SBob Peterson "sd_log_blks_free: %d\n" 969f9eb5a5SBob Peterson "sd_log_flush_head: %d\n" 979f9eb5a5SBob Peterson "sd_log_flush_tail: %d\n" 989f9eb5a5SBob Peterson "sd_log_blks_reserved: %d\n" 999f9eb5a5SBob Peterson "sd_log_revokes_available: %d\n", 1009f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_CHECKED, &f), 1019f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_LIVE, &f), 1029f9eb5a5SBob Peterson (sdp->sd_jdesc ? sdp->sd_jdesc->jd_jid : 0), 1039f9eb5a5SBob Peterson (sdp->sd_args.ar_spectator ? 1 : 0), 1049f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWN, &f), 1059f9eb5a5SBob Peterson test_bit(SDF_NOBARRIERS, &f), 1069f9eb5a5SBob Peterson test_bit(SDF_NORECOVERY, &f), 1079f9eb5a5SBob Peterson test_bit(SDF_DEMOTE, &f), 1089f9eb5a5SBob Peterson test_bit(SDF_NOJOURNALID, &f), 1099f9eb5a5SBob Peterson (sb_rdonly(sdp->sd_vfs) ? 1 : 0), 1109f9eb5a5SBob Peterson test_bit(SDF_RORECOVERY, &f), 1119f9eb5a5SBob Peterson test_bit(SDF_SKIP_DLM_UNLOCK, &f), 1129f9eb5a5SBob Peterson test_bit(SDF_FORCE_AIL_FLUSH, &f), 1139f9eb5a5SBob Peterson test_bit(SDF_FS_FROZEN, &f), 1149f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWING, &f), 1159f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_IN_PROG, &f), 1169f9eb5a5SBob Peterson test_bit(SDF_REMOTE_WITHDRAW, &f), 1179f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_RECOVERY, &f), 1189f9eb5a5SBob Peterson sdp->sd_log_error, 1199f9eb5a5SBob Peterson rwsem_is_locked(&sdp->sd_log_flush_lock), 1209f9eb5a5SBob Peterson sdp->sd_log_num_revoke, 1219f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_in_flight), 1229f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_needed), 1239f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_free), 1249f9eb5a5SBob Peterson sdp->sd_log_flush_head, 1259f9eb5a5SBob Peterson sdp->sd_log_flush_tail, 1269f9eb5a5SBob Peterson sdp->sd_log_blks_reserved, 1279f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_revokes_available)); 1289f9eb5a5SBob Peterson return s; 1299f9eb5a5SBob Peterson } 1309f9eb5a5SBob Peterson 131b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 132b3b94faaSDavid Teigland { 1333204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 134b3b94faaSDavid Teigland } 135b3b94faaSDavid Teigland 13602e3cc70SSteven Whitehouse static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf) 13702e3cc70SSteven Whitehouse { 13832e471efSSteven Whitehouse struct super_block *s = sdp->sd_vfs; 13985787090SChristoph Hellwig 14002e3cc70SSteven Whitehouse buf[0] = '\0'; 14185787090SChristoph Hellwig if (uuid_is_null(&s->s_uuid)) 14202e3cc70SSteven Whitehouse return 0; 14385787090SChristoph Hellwig return snprintf(buf, PAGE_SIZE, "%pUB\n", &s->s_uuid); 14402e3cc70SSteven Whitehouse } 14502e3cc70SSteven Whitehouse 146b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 147b3b94faaSDavid Teigland { 148d564053fSSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 149d564053fSSteven Whitehouse int frozen = (sb->s_writers.frozen == SB_UNFROZEN) ? 0 : 1; 150b3b94faaSDavid Teigland 1513566c964Salex chen return snprintf(buf, PAGE_SIZE, "%d\n", frozen); 152b3b94faaSDavid Teigland } 153b3b94faaSDavid Teigland 154b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 155b3b94faaSDavid Teigland { 156e50ead48SFabian Frederick int error, n; 157e50ead48SFabian Frederick 158e50ead48SFabian Frederick error = kstrtoint(buf, 0, &n); 159e50ead48SFabian Frederick if (error) 160e50ead48SFabian Frederick return error; 161b3b94faaSDavid Teigland 162b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 16341735818SZhao Hongjiang return -EPERM; 164b3b94faaSDavid Teigland 165b3b94faaSDavid Teigland switch (n) { 166b3b94faaSDavid Teigland case 0: 167d564053fSSteven Whitehouse error = thaw_super(sdp->sd_vfs); 168b3b94faaSDavid Teigland break; 169b3b94faaSDavid Teigland case 1: 170d564053fSSteven Whitehouse error = freeze_super(sdp->sd_vfs); 171b3b94faaSDavid Teigland break; 172b3b94faaSDavid Teigland default: 173d564053fSSteven Whitehouse return -EINVAL; 174b3b94faaSDavid Teigland } 175b3b94faaSDavid Teigland 176d564053fSSteven Whitehouse if (error) { 177af38816eSAndreas Gruenbacher fs_warn(sdp, "freeze %d error %d\n", n, error); 178d564053fSSteven Whitehouse return error; 179d564053fSSteven Whitehouse } 180b3b94faaSDavid Teigland 181d564053fSSteven Whitehouse return len; 182b3b94faaSDavid Teigland } 183b3b94faaSDavid Teigland 184b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 185b3b94faaSDavid Teigland { 186eb43e660SBob Peterson unsigned int b = gfs2_withdrawn(sdp); 1873204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 188b3b94faaSDavid Teigland } 189b3b94faaSDavid Teigland 190b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 191b3b94faaSDavid Teigland { 192e50ead48SFabian Frederick int error, val; 193e50ead48SFabian Frederick 194b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 19541735818SZhao Hongjiang return -EPERM; 196b3b94faaSDavid Teigland 197e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 198e50ead48SFabian Frederick if (error) 199e50ead48SFabian Frederick return error; 200e50ead48SFabian Frederick 201e50ead48SFabian Frederick if (val != 1) 202b3b94faaSDavid Teigland return -EINVAL; 203b3b94faaSDavid Teigland 204badb55ecSAndreas Gruenbacher gfs2_lm(sdp, "withdrawing from cluster at user's request\n"); 205badb55ecSAndreas Gruenbacher gfs2_withdraw(sdp); 206cb94eb06SJoe Perches 207b3b94faaSDavid Teigland return len; 208b3b94faaSDavid Teigland } 209b3b94faaSDavid Teigland 210b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 211b3b94faaSDavid Teigland size_t len) 212b3b94faaSDavid Teigland { 213e50ead48SFabian Frederick int error, val; 214e50ead48SFabian Frederick 215b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 21641735818SZhao Hongjiang return -EPERM; 217b3b94faaSDavid Teigland 218e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 219e50ead48SFabian Frederick if (error) 220e50ead48SFabian Frederick return error; 221e50ead48SFabian Frederick 222e50ead48SFabian Frederick if (val != 1) 223b3b94faaSDavid Teigland return -EINVAL; 224b3b94faaSDavid Teigland 2258c42d637SSteven Whitehouse gfs2_statfs_sync(sdp->sd_vfs, 0); 226b3b94faaSDavid Teigland return len; 227b3b94faaSDavid Teigland } 228b3b94faaSDavid Teigland 229b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 230b3b94faaSDavid Teigland size_t len) 231b3b94faaSDavid Teigland { 232e50ead48SFabian Frederick int error, val; 233e50ead48SFabian Frederick 234b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 23541735818SZhao Hongjiang return -EPERM; 236b3b94faaSDavid Teigland 237e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 238e50ead48SFabian Frederick if (error) 239e50ead48SFabian Frederick return error; 240e50ead48SFabian Frederick 241e50ead48SFabian Frederick if (val != 1) 242b3b94faaSDavid Teigland return -EINVAL; 243b3b94faaSDavid Teigland 244ceed1723SJan Kara gfs2_quota_sync(sdp->sd_vfs, 0); 245b3b94faaSDavid Teigland return len; 246b3b94faaSDavid Teigland } 247b3b94faaSDavid Teigland 248b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 249b3b94faaSDavid Teigland size_t len) 250b3b94faaSDavid Teigland { 251ed87dabcSEric W. Biederman struct kqid qid; 252ea762338SSteven Whitehouse int error; 253cd915493SSteven Whitehouse u32 id; 254b3b94faaSDavid Teigland 255b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 25641735818SZhao Hongjiang return -EPERM; 257b3b94faaSDavid Teigland 258e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 259e50ead48SFabian Frederick if (error) 260e50ead48SFabian Frederick return error; 261b3b94faaSDavid Teigland 262ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), USRQUOTA, id); 263ed87dabcSEric W. Biederman if (!qid_valid(qid)) 264ed87dabcSEric W. Biederman return -EINVAL; 265ed87dabcSEric W. Biederman 266ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 267ea762338SSteven Whitehouse return error ? error : len; 268b3b94faaSDavid Teigland } 269b3b94faaSDavid Teigland 270b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 271b3b94faaSDavid Teigland size_t len) 272b3b94faaSDavid Teigland { 273ed87dabcSEric W. Biederman struct kqid qid; 274ea762338SSteven Whitehouse int error; 275cd915493SSteven Whitehouse u32 id; 276b3b94faaSDavid Teigland 277b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 27841735818SZhao Hongjiang return -EPERM; 279b3b94faaSDavid Teigland 280e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 281e50ead48SFabian Frederick if (error) 282e50ead48SFabian Frederick return error; 283b3b94faaSDavid Teigland 284ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), GRPQUOTA, id); 285ed87dabcSEric W. Biederman if (!qid_valid(qid)) 286ed87dabcSEric W. Biederman return -EINVAL; 287ed87dabcSEric W. Biederman 288ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 289ea762338SSteven Whitehouse return error ? error : len; 290b3b94faaSDavid Teigland } 291b3b94faaSDavid Teigland 29264d576baSSteven Whitehouse static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 29364d576baSSteven Whitehouse { 29464d576baSSteven Whitehouse struct gfs2_glock *gl; 29564d576baSSteven Whitehouse const struct gfs2_glock_operations *glops; 29664d576baSSteven Whitehouse unsigned int glmode; 29764d576baSSteven Whitehouse unsigned int gltype; 29864d576baSSteven Whitehouse unsigned long long glnum; 29964d576baSSteven Whitehouse char mode[16]; 30064d576baSSteven Whitehouse int rv; 30164d576baSSteven Whitehouse 30264d576baSSteven Whitehouse if (!capable(CAP_SYS_ADMIN)) 30341735818SZhao Hongjiang return -EPERM; 30464d576baSSteven Whitehouse 30564d576baSSteven Whitehouse rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum, 30664d576baSSteven Whitehouse mode); 30764d576baSSteven Whitehouse if (rv != 3) 30864d576baSSteven Whitehouse return -EINVAL; 30964d576baSSteven Whitehouse 31064d576baSSteven Whitehouse if (strcmp(mode, "EX") == 0) 31164d576baSSteven Whitehouse glmode = LM_ST_UNLOCKED; 31264d576baSSteven Whitehouse else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0)) 31364d576baSSteven Whitehouse glmode = LM_ST_DEFERRED; 31464d576baSSteven Whitehouse else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0)) 31564d576baSSteven Whitehouse glmode = LM_ST_SHARED; 31664d576baSSteven Whitehouse else 31764d576baSSteven Whitehouse return -EINVAL; 31864d576baSSteven Whitehouse 31964d576baSSteven Whitehouse if (gltype > LM_TYPE_JOURNAL) 32064d576baSSteven Whitehouse return -EINVAL; 32124972557SBenjamin Marzinski if (gltype == LM_TYPE_NONDISK && glnum == GFS2_FREEZE_LOCK) 32224972557SBenjamin Marzinski glops = &gfs2_freeze_glops; 32313466985SSteven Whitehouse else 32464d576baSSteven Whitehouse glops = gfs2_glops_list[gltype]; 32564d576baSSteven Whitehouse if (glops == NULL) 32664d576baSSteven Whitehouse return -EINVAL; 3276a99be5dSSteven Whitehouse if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags)) 328913a71d2SSteven Whitehouse fs_info(sdp, "demote interface used\n"); 32964d576baSSteven Whitehouse rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl); 33064d576baSSteven Whitehouse if (rv) 33164d576baSSteven Whitehouse return rv; 33264d576baSSteven Whitehouse gfs2_glock_cb(gl, glmode); 33364d576baSSteven Whitehouse gfs2_glock_put(gl); 33464d576baSSteven Whitehouse return len; 33564d576baSSteven Whitehouse } 33664d576baSSteven Whitehouse 337b3b94faaSDavid Teigland 338b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 339b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 340b3b94faaSDavid Teigland 341b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 342b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 34302e3cc70SSteven Whitehouse GFS2_ATTR(uuid, 0444, uuid_show, NULL); 344b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 345b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 346b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 347b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 348b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 349b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 35064d576baSSteven Whitehouse GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store); 3519f9eb5a5SBob Peterson GFS2_ATTR(status, 0400, status_show, NULL); 352b3b94faaSDavid Teigland 353b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 354b3b94faaSDavid Teigland &gfs2_attr_id.attr, 355b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 35602e3cc70SSteven Whitehouse &gfs2_attr_uuid.attr, 357b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 358b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 359b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 360b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 361b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 362b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 36364d576baSSteven Whitehouse &gfs2_attr_demote_rq.attr, 3649f9eb5a5SBob Peterson &gfs2_attr_status.attr, 365b3b94faaSDavid Teigland NULL, 366b3b94faaSDavid Teigland }; 367ef254d13SKimberly Brown ATTRIBUTE_GROUPS(gfs2); 368b3b94faaSDavid Teigland 3690d515210SBob Peterson static void gfs2_sbd_release(struct kobject *kobj) 3700d515210SBob Peterson { 3710d515210SBob Peterson struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 3720d515210SBob Peterson 373c2a04b02SJamie Iles complete(&sdp->sd_kobj_unregister); 3740d515210SBob Peterson } 3750d515210SBob Peterson 376b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 3770d515210SBob Peterson .release = gfs2_sbd_release, 378ef254d13SKimberly Brown .default_groups = gfs2_groups, 379b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 380b3b94faaSDavid Teigland }; 381b3b94faaSDavid Teigland 382f057f6cdSSteven Whitehouse 383f057f6cdSSteven Whitehouse /* 384f057f6cdSSteven Whitehouse * lock_module. Originally from lock_dlm 385f057f6cdSSteven Whitehouse */ 386f057f6cdSSteven Whitehouse 387f057f6cdSSteven Whitehouse static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf) 388f057f6cdSSteven Whitehouse { 389f057f6cdSSteven Whitehouse const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops; 390f057f6cdSSteven Whitehouse return sprintf(buf, "%s\n", ops->lm_proto_name); 391f057f6cdSSteven Whitehouse } 392f057f6cdSSteven Whitehouse 393f057f6cdSSteven Whitehouse static ssize_t block_show(struct gfs2_sbd *sdp, char *buf) 394f057f6cdSSteven Whitehouse { 395f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 396f057f6cdSSteven Whitehouse ssize_t ret; 397f057f6cdSSteven Whitehouse int val = 0; 398f057f6cdSSteven Whitehouse 399e0c2a9aaSDavid Teigland if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags)) 400f057f6cdSSteven Whitehouse val = 1; 401f057f6cdSSteven Whitehouse ret = sprintf(buf, "%d\n", val); 402f057f6cdSSteven Whitehouse return ret; 403f057f6cdSSteven Whitehouse } 404f057f6cdSSteven Whitehouse 405f057f6cdSSteven Whitehouse static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 406f057f6cdSSteven Whitehouse { 407f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 408e50ead48SFabian Frederick int ret, val; 409f057f6cdSSteven Whitehouse 410e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 411e50ead48SFabian Frederick if (ret) 412e50ead48SFabian Frederick return ret; 413f057f6cdSSteven Whitehouse 414f057f6cdSSteven Whitehouse if (val == 1) 415e0c2a9aaSDavid Teigland set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 416f057f6cdSSteven Whitehouse else if (val == 0) { 417e0c2a9aaSDavid Teigland clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 4184e857c58SPeter Zijlstra smp_mb__after_atomic(); 419f057f6cdSSteven Whitehouse gfs2_glock_thaw(sdp); 420f057f6cdSSteven Whitehouse } else { 421e50ead48SFabian Frederick return -EINVAL; 422f057f6cdSSteven Whitehouse } 423e50ead48SFabian Frederick return len; 424f057f6cdSSteven Whitehouse } 425f057f6cdSSteven Whitehouse 426fd95e81cSSteven Whitehouse static ssize_t wdack_show(struct gfs2_sbd *sdp, char *buf) 427fd95e81cSSteven Whitehouse { 428fd95e81cSSteven Whitehouse int val = completion_done(&sdp->sd_wdack) ? 1 : 0; 429fd95e81cSSteven Whitehouse 430fd95e81cSSteven Whitehouse return sprintf(buf, "%d\n", val); 431fd95e81cSSteven Whitehouse } 432fd95e81cSSteven Whitehouse 433fd95e81cSSteven Whitehouse static ssize_t wdack_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 434fd95e81cSSteven Whitehouse { 435e50ead48SFabian Frederick int ret, val; 436fd95e81cSSteven Whitehouse 437e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 438e50ead48SFabian Frederick if (ret) 439e50ead48SFabian Frederick return ret; 440fd95e81cSSteven Whitehouse 441fd95e81cSSteven Whitehouse if ((val == 1) && 442fd95e81cSSteven Whitehouse !strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm")) 443fd95e81cSSteven Whitehouse complete(&sdp->sd_wdack); 444fd95e81cSSteven Whitehouse else 445e50ead48SFabian Frederick return -EINVAL; 446e50ead48SFabian Frederick return len; 447fd95e81cSSteven Whitehouse } 448fd95e81cSSteven Whitehouse 449f057f6cdSSteven Whitehouse static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 450f057f6cdSSteven Whitehouse { 451f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 452f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first); 453f057f6cdSSteven Whitehouse } 454f057f6cdSSteven Whitehouse 455ba6e9364SSteven Whitehouse static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 456ba6e9364SSteven Whitehouse { 457ba6e9364SSteven Whitehouse unsigned first; 458ba6e9364SSteven Whitehouse int rv; 459ba6e9364SSteven Whitehouse 460ba6e9364SSteven Whitehouse rv = sscanf(buf, "%u", &first); 461ba6e9364SSteven Whitehouse if (rv != 1 || first > 1) 462ba6e9364SSteven Whitehouse return -EINVAL; 4633942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 4643942ae53SSteven Whitehouse if (rv) 4653942ae53SSteven Whitehouse return rv; 466ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 467ba6e9364SSteven Whitehouse rv = -EBUSY; 468ba6e9364SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 469ba6e9364SSteven Whitehouse goto out; 470ba6e9364SSteven Whitehouse rv = -EINVAL; 471ba6e9364SSteven Whitehouse if (sdp->sd_args.ar_spectator) 472ba6e9364SSteven Whitehouse goto out; 473ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 474ba6e9364SSteven Whitehouse goto out; 475ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_first = first; 476ba6e9364SSteven Whitehouse rv = 0; 477ba6e9364SSteven Whitehouse out: 478ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 479ba6e9364SSteven Whitehouse return rv ? rv : len; 480ba6e9364SSteven Whitehouse } 481ba6e9364SSteven Whitehouse 482f057f6cdSSteven Whitehouse static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf) 483f057f6cdSSteven Whitehouse { 484f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 485e0c2a9aaSDavid Teigland return sprintf(buf, "%d\n", !!test_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags)); 486f057f6cdSSteven Whitehouse } 487f057f6cdSSteven Whitehouse 488e0c2a9aaSDavid Teigland int gfs2_recover_set(struct gfs2_sbd *sdp, unsigned jid) 489f057f6cdSSteven Whitehouse { 490f057f6cdSSteven Whitehouse struct gfs2_jdesc *jd; 491fe64d517SSteven Whitehouse int rv; 492f057f6cdSSteven Whitehouse 4930e48e055SBob Peterson /* Wait for our primary journal to be initialized */ 4940e48e055SBob Peterson wait_for_completion(&sdp->sd_journal_ready); 4950e48e055SBob Peterson 496f057f6cdSSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 497fe64d517SSteven Whitehouse rv = -EBUSY; 4984a772772SBob Peterson /** 4994a772772SBob Peterson * If we're a spectator, we use journal0, but it's not really ours. 5004a772772SBob Peterson * So we need to wait for its recovery too. If we skip it we'd never 5014a772772SBob Peterson * queue work to the recovery workqueue, and so its completion would 5024a772772SBob Peterson * never clear the DFL_BLOCK_LOCKS flag, so all our locks would 5034a772772SBob Peterson * permanently stop working. 5044a772772SBob Peterson */ 505601ef0d5SBob Peterson if (!sdp->sd_jdesc) 506601ef0d5SBob Peterson goto out; 5074a772772SBob Peterson if (sdp->sd_jdesc->jd_jid == jid && !sdp->sd_args.ar_spectator) 508fe64d517SSteven Whitehouse goto out; 509fe64d517SSteven Whitehouse rv = -ENOENT; 510f057f6cdSSteven Whitehouse list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { 5114a772772SBob Peterson if (jd->jd_jid != jid && !sdp->sd_args.ar_spectator) 512f057f6cdSSteven Whitehouse continue; 5136ecd7c2dSTejun Heo rv = gfs2_recover_journal(jd, false); 514f057f6cdSSteven Whitehouse break; 515f057f6cdSSteven Whitehouse } 516fe64d517SSteven Whitehouse out: 517f057f6cdSSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 518e0c2a9aaSDavid Teigland return rv; 519e0c2a9aaSDavid Teigland } 520e0c2a9aaSDavid Teigland 521e0c2a9aaSDavid Teigland static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 522e0c2a9aaSDavid Teigland { 523e0c2a9aaSDavid Teigland unsigned jid; 524e0c2a9aaSDavid Teigland int rv; 525e0c2a9aaSDavid Teigland 526e0c2a9aaSDavid Teigland rv = sscanf(buf, "%u", &jid); 527e0c2a9aaSDavid Teigland if (rv != 1) 528e0c2a9aaSDavid Teigland return -EINVAL; 529e0c2a9aaSDavid Teigland 5301a058f52SDavid Teigland if (test_bit(SDF_NORECOVERY, &sdp->sd_flags)) { 5311a058f52SDavid Teigland rv = -ESHUTDOWN; 5321a058f52SDavid Teigland goto out; 5331a058f52SDavid Teigland } 534e0c2a9aaSDavid Teigland 5351a058f52SDavid Teigland rv = gfs2_recover_set(sdp, jid); 5361a058f52SDavid Teigland out: 537fe64d517SSteven Whitehouse return rv ? rv : len; 538f057f6cdSSteven Whitehouse } 539f057f6cdSSteven Whitehouse 540f057f6cdSSteven Whitehouse static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf) 541f057f6cdSSteven Whitehouse { 542f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 543f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_done); 544f057f6cdSSteven Whitehouse } 545f057f6cdSSteven Whitehouse 546f057f6cdSSteven Whitehouse static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf) 547f057f6cdSSteven Whitehouse { 548f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 549f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_status); 550f057f6cdSSteven Whitehouse } 551f057f6cdSSteven Whitehouse 552e1b28aabSSteven Whitehouse static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf) 553e1b28aabSSteven Whitehouse { 554feb47ca9SSteven Whitehouse return sprintf(buf, "%d\n", sdp->sd_lockstruct.ls_jid); 555e1b28aabSSteven Whitehouse } 556e1b28aabSSteven Whitehouse 557ba6e9364SSteven Whitehouse static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 558ba6e9364SSteven Whitehouse { 559feb47ca9SSteven Whitehouse int jid; 560ba6e9364SSteven Whitehouse int rv; 561ba6e9364SSteven Whitehouse 562feb47ca9SSteven Whitehouse rv = sscanf(buf, "%d", &jid); 563ba6e9364SSteven Whitehouse if (rv != 1) 564ba6e9364SSteven Whitehouse return -EINVAL; 5653942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 5663942ae53SSteven Whitehouse if (rv) 5673942ae53SSteven Whitehouse return rv; 568ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 569ba6e9364SSteven Whitehouse rv = -EINVAL; 570ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 571ba6e9364SSteven Whitehouse goto out; 572ba6e9364SSteven Whitehouse rv = -EBUSY; 573feb47ca9SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 574ba6e9364SSteven Whitehouse goto out; 575feb47ca9SSteven Whitehouse rv = 0; 576feb47ca9SSteven Whitehouse if (sdp->sd_args.ar_spectator && jid > 0) 577feb47ca9SSteven Whitehouse rv = jid = -EINVAL; 578ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_jid = jid; 579feb47ca9SSteven Whitehouse clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); 5804e857c58SPeter Zijlstra smp_mb__after_atomic(); 581ba6e9364SSteven Whitehouse wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); 582ba6e9364SSteven Whitehouse out: 583ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 584ba6e9364SSteven Whitehouse return rv ? rv : len; 585ba6e9364SSteven Whitehouse } 586ba6e9364SSteven Whitehouse 587f057f6cdSSteven Whitehouse #define GDLM_ATTR(_name,_mode,_show,_store) \ 58848c2b613SSteven Whitehouse static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) 589f057f6cdSSteven Whitehouse 590f057f6cdSSteven Whitehouse GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 591f057f6cdSSteven Whitehouse GDLM_ATTR(block, 0644, block_show, block_store); 592fd95e81cSSteven Whitehouse GDLM_ATTR(withdraw, 0644, wdack_show, wdack_store); 593ba6e9364SSteven Whitehouse GDLM_ATTR(jid, 0644, jid_show, jid_store); 594ba6e9364SSteven Whitehouse GDLM_ATTR(first, 0644, lkfirst_show, lkfirst_store); 595f057f6cdSSteven Whitehouse GDLM_ATTR(first_done, 0444, first_done_show, NULL); 596d7e623daSSteven Whitehouse GDLM_ATTR(recover, 0600, NULL, recover_store); 597f057f6cdSSteven Whitehouse GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); 598f057f6cdSSteven Whitehouse GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); 599f057f6cdSSteven Whitehouse 600f057f6cdSSteven Whitehouse static struct attribute *lock_module_attrs[] = { 601f057f6cdSSteven Whitehouse &gdlm_attr_proto_name.attr, 602f057f6cdSSteven Whitehouse &gdlm_attr_block.attr, 603f057f6cdSSteven Whitehouse &gdlm_attr_withdraw.attr, 604e1b28aabSSteven Whitehouse &gdlm_attr_jid.attr, 605f057f6cdSSteven Whitehouse &gdlm_attr_first.attr, 606f057f6cdSSteven Whitehouse &gdlm_attr_first_done.attr, 607f057f6cdSSteven Whitehouse &gdlm_attr_recover.attr, 608f057f6cdSSteven Whitehouse &gdlm_attr_recover_done.attr, 609f057f6cdSSteven Whitehouse &gdlm_attr_recover_status.attr, 610ea67eedbSSteven Whitehouse NULL, 611b3b94faaSDavid Teigland }; 612b3b94faaSDavid Teigland 613b3b94faaSDavid Teigland /* 614b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 615b3b94faaSDavid Teigland */ 616b3b94faaSDavid Teigland 617b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 618b3b94faaSDavid Teigland { 6193204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 6203204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 621b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 622b3b94faaSDavid Teigland } 623b3b94faaSDavid Teigland 624b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 625b3b94faaSDavid Teigland size_t len) 626b3b94faaSDavid Teigland { 627b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 628b3b94faaSDavid Teigland unsigned int x, y; 629b3b94faaSDavid Teigland 630b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 63141735818SZhao Hongjiang return -EPERM; 632b3b94faaSDavid Teigland 633b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 634b3b94faaSDavid Teigland return -EINVAL; 635b3b94faaSDavid Teigland 636b3b94faaSDavid Teigland spin_lock(>->gt_spin); 637b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 638b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 639b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 640b3b94faaSDavid Teigland return len; 641b3b94faaSDavid Teigland } 642b3b94faaSDavid Teigland 643b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 644b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 645b3b94faaSDavid Teigland { 646b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 647b3b94faaSDavid Teigland unsigned int x; 648e50ead48SFabian Frederick int error; 649b3b94faaSDavid Teigland 650b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 65141735818SZhao Hongjiang return -EPERM; 652b3b94faaSDavid Teigland 653e50ead48SFabian Frederick error = kstrtouint(buf, 0, &x); 654e50ead48SFabian Frederick if (error) 655e50ead48SFabian Frederick return error; 656b3b94faaSDavid Teigland 657b3b94faaSDavid Teigland if (check_zero && !x) 658b3b94faaSDavid Teigland return -EINVAL; 659b3b94faaSDavid Teigland 660b3b94faaSDavid Teigland spin_lock(>->gt_spin); 661b3b94faaSDavid Teigland *field = x; 662b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 663b3b94faaSDavid Teigland return len; 664b3b94faaSDavid Teigland } 665b3b94faaSDavid Teigland 666b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 66748c2b613SSteven Whitehouse static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store) 668b3b94faaSDavid Teigland 669b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 670b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 671b3b94faaSDavid Teigland { \ 6723204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 673b3b94faaSDavid Teigland } \ 674b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 675b3b94faaSDavid Teigland 676b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 677b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 678b3b94faaSDavid Teigland { \ 679b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 680b3b94faaSDavid Teigland } \ 681b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 682b3b94faaSDavid Teigland 683b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 684b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 685b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 686b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 687b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 688b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 689b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 690b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 691b3b94faaSDavid Teigland 692b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 693b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 694b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 695b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 696b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 697b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 698b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 699b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 700b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 701ea67eedbSSteven Whitehouse NULL, 702b3b94faaSDavid Teigland }; 703b3b94faaSDavid Teigland 70429695254SArvind Yadav static const struct attribute_group tune_group = { 705b3b94faaSDavid Teigland .name = "tune", 706ea67eedbSSteven Whitehouse .attrs = tune_attrs, 707b3b94faaSDavid Teigland }; 708b3b94faaSDavid Teigland 70929695254SArvind Yadav static const struct attribute_group lock_module_group = { 710f057f6cdSSteven Whitehouse .name = "lock_module", 711f057f6cdSSteven Whitehouse .attrs = lock_module_attrs, 712f057f6cdSSteven Whitehouse }; 713f057f6cdSSteven Whitehouse 714b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 715b3b94faaSDavid Teigland { 716440d6da2SSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 717b3b94faaSDavid Teigland int error; 718440d6da2SSteven Whitehouse char ro[20]; 719440d6da2SSteven Whitehouse char spectator[20]; 720440d6da2SSteven Whitehouse char *envp[] = { ro, spectator, NULL }; 721440d6da2SSteven Whitehouse 722bc98a42cSDavid Howells sprintf(ro, "RDONLY=%d", sb_rdonly(sb)); 723440d6da2SSteven Whitehouse sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); 724b3b94faaSDavid Teigland 725c2a04b02SJamie Iles init_completion(&sdp->sd_kobj_unregister); 7269bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 727901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 728901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 729b3b94faaSDavid Teigland if (error) 7300d515210SBob Peterson goto fail_reg; 731b3b94faaSDavid Teigland 732b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 733b3b94faaSDavid Teigland if (error) 734f6eb5349SSteven Whitehouse goto fail_reg; 735b3b94faaSDavid Teigland 736f057f6cdSSteven Whitehouse error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group); 737f057f6cdSSteven Whitehouse if (error) 738f057f6cdSSteven Whitehouse goto fail_tune; 739f057f6cdSSteven Whitehouse 74031e54b01SSteven Whitehouse error = sysfs_create_link(&sdp->sd_kobj, 74131e54b01SSteven Whitehouse &disk_to_dev(sb->s_bdev->bd_disk)->kobj, 74231e54b01SSteven Whitehouse "device"); 74331e54b01SSteven Whitehouse if (error) 74431e54b01SSteven Whitehouse goto fail_lock_module; 74531e54b01SSteven Whitehouse 746440d6da2SSteven Whitehouse kobject_uevent_env(&sdp->sd_kobj, KOBJ_ADD, envp); 747b3b94faaSDavid Teigland return 0; 748b3b94faaSDavid Teigland 74931e54b01SSteven Whitehouse fail_lock_module: 75031e54b01SSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 751f057f6cdSSteven Whitehouse fail_tune: 752f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &tune_group); 753b3b94faaSDavid Teigland fail_reg: 754af38816eSAndreas Gruenbacher fs_err(sdp, "error %d adding sysfs files\n", error); 7550d515210SBob Peterson kobject_put(&sdp->sd_kobj); 756c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 7570d515210SBob Peterson sb->s_fs_info = NULL; 758b3b94faaSDavid Teigland return error; 759b3b94faaSDavid Teigland } 760b3b94faaSDavid Teigland 761b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 762b3b94faaSDavid Teigland { 76331e54b01SSteven Whitehouse sysfs_remove_link(&sdp->sd_kobj, "device"); 764b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 765f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 766197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 767c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 768b3b94faaSDavid Teigland } 769b3b94faaSDavid Teigland 770*56d5f362SGreg Kroah-Hartman static int gfs2_uevent(const struct kobject *kobj, struct kobj_uevent_env *env) 771fdd1062eSSteven Whitehouse { 772*56d5f362SGreg Kroah-Hartman const struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 773*56d5f362SGreg Kroah-Hartman const struct super_block *s = sdp->sd_vfs; 77402e3cc70SSteven Whitehouse 775fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 776fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 777ba6e9364SSteven Whitehouse if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) 778feb47ca9SSteven Whitehouse add_uevent_var(env, "JOURNALID=%d", sdp->sd_lockstruct.ls_jid); 77985787090SChristoph Hellwig if (!uuid_is_null(&s->s_uuid)) 78085787090SChristoph Hellwig add_uevent_var(env, "UUID=%pUB", &s->s_uuid); 781fdd1062eSSteven Whitehouse return 0; 782fdd1062eSSteven Whitehouse } 783fdd1062eSSteven Whitehouse 7849cd43611SEmese Revfy static const struct kset_uevent_ops gfs2_uevent_ops = { 785fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 786fdd1062eSSteven Whitehouse }; 787fdd1062eSSteven Whitehouse 788b3b94faaSDavid Teigland int gfs2_sys_init(void) 789b3b94faaSDavid Teigland { 790fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 7919bec101aSGreg Kroah-Hartman if (!gfs2_kset) 7929bec101aSGreg Kroah-Hartman return -ENOMEM; 7939bec101aSGreg Kroah-Hartman return 0; 794b3b94faaSDavid Teigland } 795b3b94faaSDavid Teigland 796b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 797b3b94faaSDavid Teigland { 7989bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 799b3b94faaSDavid Teigland } 800b3b94faaSDavid Teigland 801