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" 855432af15SAndreas Gruenbacher "FS Freeze Initiator: %d\n" 869f9eb5a5SBob Peterson "FS Frozen: %d\n" 879f9eb5a5SBob Peterson "Withdrawing: %d\n" 889f9eb5a5SBob Peterson "Withdraw In Prog: %d\n" 899f9eb5a5SBob Peterson "Remote Withdraw: %d\n" 909f9eb5a5SBob Peterson "Withdraw Recovery: %d\n" 911c900151SBob Peterson "Deactivating: %d\n" 929f9eb5a5SBob Peterson "sd_log_error: %d\n" 939f9eb5a5SBob Peterson "sd_log_flush_lock: %d\n" 949f9eb5a5SBob Peterson "sd_log_num_revoke: %u\n" 959f9eb5a5SBob Peterson "sd_log_in_flight: %d\n" 969f9eb5a5SBob Peterson "sd_log_blks_needed: %d\n" 979f9eb5a5SBob Peterson "sd_log_blks_free: %d\n" 989f9eb5a5SBob Peterson "sd_log_flush_head: %d\n" 999f9eb5a5SBob Peterson "sd_log_flush_tail: %d\n" 1009f9eb5a5SBob Peterson "sd_log_blks_reserved: %d\n" 1019f9eb5a5SBob Peterson "sd_log_revokes_available: %d\n", 1029f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_CHECKED, &f), 1039f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_LIVE, &f), 1049f9eb5a5SBob Peterson (sdp->sd_jdesc ? sdp->sd_jdesc->jd_jid : 0), 1059f9eb5a5SBob Peterson (sdp->sd_args.ar_spectator ? 1 : 0), 1069f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWN, &f), 1079f9eb5a5SBob Peterson test_bit(SDF_NOBARRIERS, &f), 1089f9eb5a5SBob Peterson test_bit(SDF_NORECOVERY, &f), 1099f9eb5a5SBob Peterson test_bit(SDF_DEMOTE, &f), 1109f9eb5a5SBob Peterson test_bit(SDF_NOJOURNALID, &f), 1119f9eb5a5SBob Peterson (sb_rdonly(sdp->sd_vfs) ? 1 : 0), 1129f9eb5a5SBob Peterson test_bit(SDF_RORECOVERY, &f), 1139f9eb5a5SBob Peterson test_bit(SDF_SKIP_DLM_UNLOCK, &f), 1149f9eb5a5SBob Peterson test_bit(SDF_FORCE_AIL_FLUSH, &f), 115cad1e158SAndreas Gruenbacher test_bit(SDF_FREEZE_INITIATOR, &f), 1165432af15SAndreas Gruenbacher test_bit(SDF_FROZEN, &f), 1179f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWING, &f), 1189f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_IN_PROG, &f), 1199f9eb5a5SBob Peterson test_bit(SDF_REMOTE_WITHDRAW, &f), 1209f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_RECOVERY, &f), 1211c900151SBob Peterson test_bit(SDF_DEACTIVATING, &f), 1229f9eb5a5SBob Peterson sdp->sd_log_error, 1239f9eb5a5SBob Peterson rwsem_is_locked(&sdp->sd_log_flush_lock), 1249f9eb5a5SBob Peterson sdp->sd_log_num_revoke, 1259f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_in_flight), 1269f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_needed), 1279f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_free), 1289f9eb5a5SBob Peterson sdp->sd_log_flush_head, 1299f9eb5a5SBob Peterson sdp->sd_log_flush_tail, 1309f9eb5a5SBob Peterson sdp->sd_log_blks_reserved, 1319f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_revokes_available)); 1329f9eb5a5SBob Peterson return s; 1339f9eb5a5SBob Peterson } 1349f9eb5a5SBob Peterson 135b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 136b3b94faaSDavid Teigland { 1373204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 138b3b94faaSDavid Teigland } 139b3b94faaSDavid Teigland 14002e3cc70SSteven Whitehouse static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf) 14102e3cc70SSteven Whitehouse { 14232e471efSSteven Whitehouse struct super_block *s = sdp->sd_vfs; 14385787090SChristoph Hellwig 14402e3cc70SSteven Whitehouse buf[0] = '\0'; 14585787090SChristoph Hellwig if (uuid_is_null(&s->s_uuid)) 14602e3cc70SSteven Whitehouse return 0; 14785787090SChristoph Hellwig return snprintf(buf, PAGE_SIZE, "%pUB\n", &s->s_uuid); 14802e3cc70SSteven Whitehouse } 14902e3cc70SSteven Whitehouse 150b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 151b3b94faaSDavid Teigland { 152d564053fSSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 153d564053fSSteven Whitehouse int frozen = (sb->s_writers.frozen == SB_UNFROZEN) ? 0 : 1; 154b3b94faaSDavid Teigland 1553566c964Salex chen return snprintf(buf, PAGE_SIZE, "%d\n", frozen); 156b3b94faaSDavid Teigland } 157b3b94faaSDavid Teigland 158b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 159b3b94faaSDavid Teigland { 160e50ead48SFabian Frederick int error, n; 161e50ead48SFabian Frederick 162e50ead48SFabian Frederick error = kstrtoint(buf, 0, &n); 163e50ead48SFabian Frederick if (error) 164e50ead48SFabian Frederick return error; 165b3b94faaSDavid Teigland 166b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 16741735818SZhao Hongjiang return -EPERM; 168b3b94faaSDavid Teigland 169b3b94faaSDavid Teigland switch (n) { 170b3b94faaSDavid Teigland case 0: 171*880b9577SDarrick J. Wong error = thaw_super(sdp->sd_vfs, FREEZE_HOLDER_USERSPACE); 172b3b94faaSDavid Teigland break; 173b3b94faaSDavid Teigland case 1: 174*880b9577SDarrick J. Wong error = freeze_super(sdp->sd_vfs, FREEZE_HOLDER_USERSPACE); 175b3b94faaSDavid Teigland break; 176b3b94faaSDavid Teigland default: 177d564053fSSteven Whitehouse return -EINVAL; 178b3b94faaSDavid Teigland } 179b3b94faaSDavid Teigland 180d564053fSSteven Whitehouse if (error) { 181af38816eSAndreas Gruenbacher fs_warn(sdp, "freeze %d error %d\n", n, error); 182d564053fSSteven Whitehouse return error; 183d564053fSSteven Whitehouse } 184b3b94faaSDavid Teigland 185d564053fSSteven Whitehouse return len; 186b3b94faaSDavid Teigland } 187b3b94faaSDavid Teigland 188b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 189b3b94faaSDavid Teigland { 190eb43e660SBob Peterson unsigned int b = gfs2_withdrawn(sdp); 1913204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 192b3b94faaSDavid Teigland } 193b3b94faaSDavid Teigland 194b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 195b3b94faaSDavid Teigland { 196e50ead48SFabian Frederick int error, val; 197e50ead48SFabian Frederick 198b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 19941735818SZhao Hongjiang return -EPERM; 200b3b94faaSDavid Teigland 201e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 202e50ead48SFabian Frederick if (error) 203e50ead48SFabian Frederick return error; 204e50ead48SFabian Frederick 205e50ead48SFabian Frederick if (val != 1) 206b3b94faaSDavid Teigland return -EINVAL; 207b3b94faaSDavid Teigland 208badb55ecSAndreas Gruenbacher gfs2_lm(sdp, "withdrawing from cluster at user's request\n"); 209badb55ecSAndreas Gruenbacher gfs2_withdraw(sdp); 210cb94eb06SJoe Perches 211b3b94faaSDavid Teigland return len; 212b3b94faaSDavid Teigland } 213b3b94faaSDavid Teigland 214b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 215b3b94faaSDavid Teigland size_t len) 216b3b94faaSDavid Teigland { 217e50ead48SFabian Frederick int error, val; 218e50ead48SFabian Frederick 219b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 22041735818SZhao Hongjiang return -EPERM; 221b3b94faaSDavid Teigland 222e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 223e50ead48SFabian Frederick if (error) 224e50ead48SFabian Frederick return error; 225e50ead48SFabian Frederick 226e50ead48SFabian Frederick if (val != 1) 227b3b94faaSDavid Teigland return -EINVAL; 228b3b94faaSDavid Teigland 2298c42d637SSteven Whitehouse gfs2_statfs_sync(sdp->sd_vfs, 0); 230b3b94faaSDavid Teigland return len; 231b3b94faaSDavid Teigland } 232b3b94faaSDavid Teigland 233b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 234b3b94faaSDavid Teigland size_t len) 235b3b94faaSDavid Teigland { 236e50ead48SFabian Frederick int error, val; 237e50ead48SFabian Frederick 238b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 23941735818SZhao Hongjiang return -EPERM; 240b3b94faaSDavid Teigland 241e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 242e50ead48SFabian Frederick if (error) 243e50ead48SFabian Frederick return error; 244e50ead48SFabian Frederick 245e50ead48SFabian Frederick if (val != 1) 246b3b94faaSDavid Teigland return -EINVAL; 247b3b94faaSDavid Teigland 248ceed1723SJan Kara gfs2_quota_sync(sdp->sd_vfs, 0); 249b3b94faaSDavid Teigland return len; 250b3b94faaSDavid Teigland } 251b3b94faaSDavid Teigland 252b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 253b3b94faaSDavid Teigland size_t len) 254b3b94faaSDavid Teigland { 255ed87dabcSEric W. Biederman struct kqid qid; 256ea762338SSteven Whitehouse int error; 257cd915493SSteven Whitehouse u32 id; 258b3b94faaSDavid Teigland 259b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 26041735818SZhao Hongjiang return -EPERM; 261b3b94faaSDavid Teigland 262e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 263e50ead48SFabian Frederick if (error) 264e50ead48SFabian Frederick return error; 265b3b94faaSDavid Teigland 266ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), USRQUOTA, id); 267ed87dabcSEric W. Biederman if (!qid_valid(qid)) 268ed87dabcSEric W. Biederman return -EINVAL; 269ed87dabcSEric W. Biederman 270ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 271ea762338SSteven Whitehouse return error ? error : len; 272b3b94faaSDavid Teigland } 273b3b94faaSDavid Teigland 274b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 275b3b94faaSDavid Teigland size_t len) 276b3b94faaSDavid Teigland { 277ed87dabcSEric W. Biederman struct kqid qid; 278ea762338SSteven Whitehouse int error; 279cd915493SSteven Whitehouse u32 id; 280b3b94faaSDavid Teigland 281b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 28241735818SZhao Hongjiang return -EPERM; 283b3b94faaSDavid Teigland 284e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 285e50ead48SFabian Frederick if (error) 286e50ead48SFabian Frederick return error; 287b3b94faaSDavid Teigland 288ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), GRPQUOTA, id); 289ed87dabcSEric W. Biederman if (!qid_valid(qid)) 290ed87dabcSEric W. Biederman return -EINVAL; 291ed87dabcSEric W. Biederman 292ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 293ea762338SSteven Whitehouse return error ? error : len; 294b3b94faaSDavid Teigland } 295b3b94faaSDavid Teigland 29664d576baSSteven Whitehouse static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 29764d576baSSteven Whitehouse { 29864d576baSSteven Whitehouse struct gfs2_glock *gl; 29964d576baSSteven Whitehouse const struct gfs2_glock_operations *glops; 30064d576baSSteven Whitehouse unsigned int glmode; 30164d576baSSteven Whitehouse unsigned int gltype; 30264d576baSSteven Whitehouse unsigned long long glnum; 30364d576baSSteven Whitehouse char mode[16]; 30464d576baSSteven Whitehouse int rv; 30564d576baSSteven Whitehouse 30664d576baSSteven Whitehouse if (!capable(CAP_SYS_ADMIN)) 30741735818SZhao Hongjiang return -EPERM; 30864d576baSSteven Whitehouse 30964d576baSSteven Whitehouse rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum, 31064d576baSSteven Whitehouse mode); 31164d576baSSteven Whitehouse if (rv != 3) 31264d576baSSteven Whitehouse return -EINVAL; 31364d576baSSteven Whitehouse 31464d576baSSteven Whitehouse if (strcmp(mode, "EX") == 0) 31564d576baSSteven Whitehouse glmode = LM_ST_UNLOCKED; 31664d576baSSteven Whitehouse else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0)) 31764d576baSSteven Whitehouse glmode = LM_ST_DEFERRED; 31864d576baSSteven Whitehouse else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0)) 31964d576baSSteven Whitehouse glmode = LM_ST_SHARED; 32064d576baSSteven Whitehouse else 32164d576baSSteven Whitehouse return -EINVAL; 32264d576baSSteven Whitehouse 32364d576baSSteven Whitehouse if (gltype > LM_TYPE_JOURNAL) 32464d576baSSteven Whitehouse return -EINVAL; 32524972557SBenjamin Marzinski if (gltype == LM_TYPE_NONDISK && glnum == GFS2_FREEZE_LOCK) 32624972557SBenjamin Marzinski glops = &gfs2_freeze_glops; 32713466985SSteven Whitehouse else 32864d576baSSteven Whitehouse glops = gfs2_glops_list[gltype]; 32964d576baSSteven Whitehouse if (glops == NULL) 33064d576baSSteven Whitehouse return -EINVAL; 3316a99be5dSSteven Whitehouse if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags)) 332913a71d2SSteven Whitehouse fs_info(sdp, "demote interface used\n"); 33364d576baSSteven Whitehouse rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl); 33464d576baSSteven Whitehouse if (rv) 33564d576baSSteven Whitehouse return rv; 33664d576baSSteven Whitehouse gfs2_glock_cb(gl, glmode); 33764d576baSSteven Whitehouse gfs2_glock_put(gl); 33864d576baSSteven Whitehouse return len; 33964d576baSSteven Whitehouse } 34064d576baSSteven Whitehouse 341b3b94faaSDavid Teigland 342b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 343b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 344b3b94faaSDavid Teigland 345b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 346b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 34702e3cc70SSteven Whitehouse GFS2_ATTR(uuid, 0444, uuid_show, NULL); 348b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 349b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 350b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 351b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 352b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 353b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 35464d576baSSteven Whitehouse GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store); 3559f9eb5a5SBob Peterson GFS2_ATTR(status, 0400, status_show, NULL); 356b3b94faaSDavid Teigland 357b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 358b3b94faaSDavid Teigland &gfs2_attr_id.attr, 359b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 36002e3cc70SSteven Whitehouse &gfs2_attr_uuid.attr, 361b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 362b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 363b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 364b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 365b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 366b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 36764d576baSSteven Whitehouse &gfs2_attr_demote_rq.attr, 3689f9eb5a5SBob Peterson &gfs2_attr_status.attr, 369b3b94faaSDavid Teigland NULL, 370b3b94faaSDavid Teigland }; 371ef254d13SKimberly Brown ATTRIBUTE_GROUPS(gfs2); 372b3b94faaSDavid Teigland 3730d515210SBob Peterson static void gfs2_sbd_release(struct kobject *kobj) 3740d515210SBob Peterson { 3750d515210SBob Peterson struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 3760d515210SBob Peterson 377c2a04b02SJamie Iles complete(&sdp->sd_kobj_unregister); 3780d515210SBob Peterson } 3790d515210SBob Peterson 380b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 3810d515210SBob Peterson .release = gfs2_sbd_release, 382ef254d13SKimberly Brown .default_groups = gfs2_groups, 383b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 384b3b94faaSDavid Teigland }; 385b3b94faaSDavid Teigland 386f057f6cdSSteven Whitehouse 387f057f6cdSSteven Whitehouse /* 388f057f6cdSSteven Whitehouse * lock_module. Originally from lock_dlm 389f057f6cdSSteven Whitehouse */ 390f057f6cdSSteven Whitehouse 391f057f6cdSSteven Whitehouse static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf) 392f057f6cdSSteven Whitehouse { 393f057f6cdSSteven Whitehouse const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops; 394f057f6cdSSteven Whitehouse return sprintf(buf, "%s\n", ops->lm_proto_name); 395f057f6cdSSteven Whitehouse } 396f057f6cdSSteven Whitehouse 397f057f6cdSSteven Whitehouse static ssize_t block_show(struct gfs2_sbd *sdp, char *buf) 398f057f6cdSSteven Whitehouse { 399f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 400f057f6cdSSteven Whitehouse ssize_t ret; 401f057f6cdSSteven Whitehouse int val = 0; 402f057f6cdSSteven Whitehouse 403e0c2a9aaSDavid Teigland if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags)) 404f057f6cdSSteven Whitehouse val = 1; 405f057f6cdSSteven Whitehouse ret = sprintf(buf, "%d\n", val); 406f057f6cdSSteven Whitehouse return ret; 407f057f6cdSSteven Whitehouse } 408f057f6cdSSteven Whitehouse 409f057f6cdSSteven Whitehouse static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 410f057f6cdSSteven Whitehouse { 411f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 412e50ead48SFabian Frederick int ret, val; 413f057f6cdSSteven Whitehouse 414e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 415e50ead48SFabian Frederick if (ret) 416e50ead48SFabian Frederick return ret; 417f057f6cdSSteven Whitehouse 418f057f6cdSSteven Whitehouse if (val == 1) 419e0c2a9aaSDavid Teigland set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 420f057f6cdSSteven Whitehouse else if (val == 0) { 421e0c2a9aaSDavid Teigland clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 4224e857c58SPeter Zijlstra smp_mb__after_atomic(); 423f057f6cdSSteven Whitehouse gfs2_glock_thaw(sdp); 424f057f6cdSSteven Whitehouse } else { 425e50ead48SFabian Frederick return -EINVAL; 426f057f6cdSSteven Whitehouse } 427e50ead48SFabian Frederick return len; 428f057f6cdSSteven Whitehouse } 429f057f6cdSSteven Whitehouse 430fd95e81cSSteven Whitehouse static ssize_t wdack_show(struct gfs2_sbd *sdp, char *buf) 431fd95e81cSSteven Whitehouse { 432fd95e81cSSteven Whitehouse int val = completion_done(&sdp->sd_wdack) ? 1 : 0; 433fd95e81cSSteven Whitehouse 434fd95e81cSSteven Whitehouse return sprintf(buf, "%d\n", val); 435fd95e81cSSteven Whitehouse } 436fd95e81cSSteven Whitehouse 437fd95e81cSSteven Whitehouse static ssize_t wdack_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 438fd95e81cSSteven Whitehouse { 439e50ead48SFabian Frederick int ret, val; 440fd95e81cSSteven Whitehouse 441e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 442e50ead48SFabian Frederick if (ret) 443e50ead48SFabian Frederick return ret; 444fd95e81cSSteven Whitehouse 445fd95e81cSSteven Whitehouse if ((val == 1) && 446fd95e81cSSteven Whitehouse !strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm")) 447fd95e81cSSteven Whitehouse complete(&sdp->sd_wdack); 448fd95e81cSSteven Whitehouse else 449e50ead48SFabian Frederick return -EINVAL; 450e50ead48SFabian Frederick return len; 451fd95e81cSSteven Whitehouse } 452fd95e81cSSteven Whitehouse 453f057f6cdSSteven Whitehouse static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 454f057f6cdSSteven Whitehouse { 455f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 456f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first); 457f057f6cdSSteven Whitehouse } 458f057f6cdSSteven Whitehouse 459ba6e9364SSteven Whitehouse static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 460ba6e9364SSteven Whitehouse { 461ba6e9364SSteven Whitehouse unsigned first; 462ba6e9364SSteven Whitehouse int rv; 463ba6e9364SSteven Whitehouse 464ba6e9364SSteven Whitehouse rv = sscanf(buf, "%u", &first); 465ba6e9364SSteven Whitehouse if (rv != 1 || first > 1) 466ba6e9364SSteven Whitehouse return -EINVAL; 4673942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 4683942ae53SSteven Whitehouse if (rv) 4693942ae53SSteven Whitehouse return rv; 470ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 471ba6e9364SSteven Whitehouse rv = -EBUSY; 472ba6e9364SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 473ba6e9364SSteven Whitehouse goto out; 474ba6e9364SSteven Whitehouse rv = -EINVAL; 475ba6e9364SSteven Whitehouse if (sdp->sd_args.ar_spectator) 476ba6e9364SSteven Whitehouse goto out; 477ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 478ba6e9364SSteven Whitehouse goto out; 479ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_first = first; 480ba6e9364SSteven Whitehouse rv = 0; 481ba6e9364SSteven Whitehouse out: 482ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 483ba6e9364SSteven Whitehouse return rv ? rv : len; 484ba6e9364SSteven Whitehouse } 485ba6e9364SSteven Whitehouse 486f057f6cdSSteven Whitehouse static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf) 487f057f6cdSSteven Whitehouse { 488f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 489e0c2a9aaSDavid Teigland return sprintf(buf, "%d\n", !!test_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags)); 490f057f6cdSSteven Whitehouse } 491f057f6cdSSteven Whitehouse 492e0c2a9aaSDavid Teigland int gfs2_recover_set(struct gfs2_sbd *sdp, unsigned jid) 493f057f6cdSSteven Whitehouse { 494f057f6cdSSteven Whitehouse struct gfs2_jdesc *jd; 495fe64d517SSteven Whitehouse int rv; 496f057f6cdSSteven Whitehouse 4970e48e055SBob Peterson /* Wait for our primary journal to be initialized */ 4980e48e055SBob Peterson wait_for_completion(&sdp->sd_journal_ready); 4990e48e055SBob Peterson 500f057f6cdSSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 501fe64d517SSteven Whitehouse rv = -EBUSY; 5024a772772SBob Peterson /** 5034a772772SBob Peterson * If we're a spectator, we use journal0, but it's not really ours. 5044a772772SBob Peterson * So we need to wait for its recovery too. If we skip it we'd never 5054a772772SBob Peterson * queue work to the recovery workqueue, and so its completion would 5064a772772SBob Peterson * never clear the DFL_BLOCK_LOCKS flag, so all our locks would 5074a772772SBob Peterson * permanently stop working. 5084a772772SBob Peterson */ 509601ef0d5SBob Peterson if (!sdp->sd_jdesc) 510601ef0d5SBob Peterson goto out; 5114a772772SBob Peterson if (sdp->sd_jdesc->jd_jid == jid && !sdp->sd_args.ar_spectator) 512fe64d517SSteven Whitehouse goto out; 513fe64d517SSteven Whitehouse rv = -ENOENT; 514f057f6cdSSteven Whitehouse list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { 5154a772772SBob Peterson if (jd->jd_jid != jid && !sdp->sd_args.ar_spectator) 516f057f6cdSSteven Whitehouse continue; 5176ecd7c2dSTejun Heo rv = gfs2_recover_journal(jd, false); 518f057f6cdSSteven Whitehouse break; 519f057f6cdSSteven Whitehouse } 520fe64d517SSteven Whitehouse out: 521f057f6cdSSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 522e0c2a9aaSDavid Teigland return rv; 523e0c2a9aaSDavid Teigland } 524e0c2a9aaSDavid Teigland 525e0c2a9aaSDavid Teigland static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 526e0c2a9aaSDavid Teigland { 527e0c2a9aaSDavid Teigland unsigned jid; 528e0c2a9aaSDavid Teigland int rv; 529e0c2a9aaSDavid Teigland 530e0c2a9aaSDavid Teigland rv = sscanf(buf, "%u", &jid); 531e0c2a9aaSDavid Teigland if (rv != 1) 532e0c2a9aaSDavid Teigland return -EINVAL; 533e0c2a9aaSDavid Teigland 5341a058f52SDavid Teigland if (test_bit(SDF_NORECOVERY, &sdp->sd_flags)) { 5351a058f52SDavid Teigland rv = -ESHUTDOWN; 5361a058f52SDavid Teigland goto out; 5371a058f52SDavid Teigland } 538e0c2a9aaSDavid Teigland 5391a058f52SDavid Teigland rv = gfs2_recover_set(sdp, jid); 5401a058f52SDavid Teigland out: 541fe64d517SSteven Whitehouse return rv ? rv : len; 542f057f6cdSSteven Whitehouse } 543f057f6cdSSteven Whitehouse 544f057f6cdSSteven Whitehouse static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf) 545f057f6cdSSteven Whitehouse { 546f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 547f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_done); 548f057f6cdSSteven Whitehouse } 549f057f6cdSSteven Whitehouse 550f057f6cdSSteven Whitehouse static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf) 551f057f6cdSSteven Whitehouse { 552f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 553f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_status); 554f057f6cdSSteven Whitehouse } 555f057f6cdSSteven Whitehouse 556e1b28aabSSteven Whitehouse static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf) 557e1b28aabSSteven Whitehouse { 558feb47ca9SSteven Whitehouse return sprintf(buf, "%d\n", sdp->sd_lockstruct.ls_jid); 559e1b28aabSSteven Whitehouse } 560e1b28aabSSteven Whitehouse 561ba6e9364SSteven Whitehouse static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 562ba6e9364SSteven Whitehouse { 563feb47ca9SSteven Whitehouse int jid; 564ba6e9364SSteven Whitehouse int rv; 565ba6e9364SSteven Whitehouse 566feb47ca9SSteven Whitehouse rv = sscanf(buf, "%d", &jid); 567ba6e9364SSteven Whitehouse if (rv != 1) 568ba6e9364SSteven Whitehouse return -EINVAL; 5693942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 5703942ae53SSteven Whitehouse if (rv) 5713942ae53SSteven Whitehouse return rv; 572ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 573ba6e9364SSteven Whitehouse rv = -EINVAL; 574ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 575ba6e9364SSteven Whitehouse goto out; 576ba6e9364SSteven Whitehouse rv = -EBUSY; 577feb47ca9SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 578ba6e9364SSteven Whitehouse goto out; 579feb47ca9SSteven Whitehouse rv = 0; 580feb47ca9SSteven Whitehouse if (sdp->sd_args.ar_spectator && jid > 0) 581feb47ca9SSteven Whitehouse rv = jid = -EINVAL; 582ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_jid = jid; 583feb47ca9SSteven Whitehouse clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); 5844e857c58SPeter Zijlstra smp_mb__after_atomic(); 585ba6e9364SSteven Whitehouse wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); 586ba6e9364SSteven Whitehouse out: 587ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 588ba6e9364SSteven Whitehouse return rv ? rv : len; 589ba6e9364SSteven Whitehouse } 590ba6e9364SSteven Whitehouse 591f057f6cdSSteven Whitehouse #define GDLM_ATTR(_name,_mode,_show,_store) \ 59248c2b613SSteven Whitehouse static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) 593f057f6cdSSteven Whitehouse 594f057f6cdSSteven Whitehouse GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 595f057f6cdSSteven Whitehouse GDLM_ATTR(block, 0644, block_show, block_store); 596fd95e81cSSteven Whitehouse GDLM_ATTR(withdraw, 0644, wdack_show, wdack_store); 597ba6e9364SSteven Whitehouse GDLM_ATTR(jid, 0644, jid_show, jid_store); 598ba6e9364SSteven Whitehouse GDLM_ATTR(first, 0644, lkfirst_show, lkfirst_store); 599f057f6cdSSteven Whitehouse GDLM_ATTR(first_done, 0444, first_done_show, NULL); 600d7e623daSSteven Whitehouse GDLM_ATTR(recover, 0600, NULL, recover_store); 601f057f6cdSSteven Whitehouse GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); 602f057f6cdSSteven Whitehouse GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); 603f057f6cdSSteven Whitehouse 604f057f6cdSSteven Whitehouse static struct attribute *lock_module_attrs[] = { 605f057f6cdSSteven Whitehouse &gdlm_attr_proto_name.attr, 606f057f6cdSSteven Whitehouse &gdlm_attr_block.attr, 607f057f6cdSSteven Whitehouse &gdlm_attr_withdraw.attr, 608e1b28aabSSteven Whitehouse &gdlm_attr_jid.attr, 609f057f6cdSSteven Whitehouse &gdlm_attr_first.attr, 610f057f6cdSSteven Whitehouse &gdlm_attr_first_done.attr, 611f057f6cdSSteven Whitehouse &gdlm_attr_recover.attr, 612f057f6cdSSteven Whitehouse &gdlm_attr_recover_done.attr, 613f057f6cdSSteven Whitehouse &gdlm_attr_recover_status.attr, 614ea67eedbSSteven Whitehouse NULL, 615b3b94faaSDavid Teigland }; 616b3b94faaSDavid Teigland 617b3b94faaSDavid Teigland /* 618b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 619b3b94faaSDavid Teigland */ 620b3b94faaSDavid Teigland 621b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 622b3b94faaSDavid Teigland { 6233204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 6243204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 625b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 626b3b94faaSDavid Teigland } 627b3b94faaSDavid Teigland 628b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 629b3b94faaSDavid Teigland size_t len) 630b3b94faaSDavid Teigland { 631b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 632b3b94faaSDavid Teigland unsigned int x, y; 633b3b94faaSDavid Teigland 634b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 63541735818SZhao Hongjiang return -EPERM; 636b3b94faaSDavid Teigland 637b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 638b3b94faaSDavid Teigland return -EINVAL; 639b3b94faaSDavid Teigland 640b3b94faaSDavid Teigland spin_lock(>->gt_spin); 641b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 642b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 643b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 644b3b94faaSDavid Teigland return len; 645b3b94faaSDavid Teigland } 646b3b94faaSDavid Teigland 647b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 648b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 649b3b94faaSDavid Teigland { 650b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 651b3b94faaSDavid Teigland unsigned int x; 652e50ead48SFabian Frederick int error; 653b3b94faaSDavid Teigland 654b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 65541735818SZhao Hongjiang return -EPERM; 656b3b94faaSDavid Teigland 657e50ead48SFabian Frederick error = kstrtouint(buf, 0, &x); 658e50ead48SFabian Frederick if (error) 659e50ead48SFabian Frederick return error; 660b3b94faaSDavid Teigland 661b3b94faaSDavid Teigland if (check_zero && !x) 662b3b94faaSDavid Teigland return -EINVAL; 663b3b94faaSDavid Teigland 664b3b94faaSDavid Teigland spin_lock(>->gt_spin); 665b3b94faaSDavid Teigland *field = x; 666b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 667b3b94faaSDavid Teigland return len; 668b3b94faaSDavid Teigland } 669b3b94faaSDavid Teigland 670b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 67148c2b613SSteven Whitehouse static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store) 672b3b94faaSDavid Teigland 673b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 674b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 675b3b94faaSDavid Teigland { \ 6763204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 677b3b94faaSDavid Teigland } \ 678b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 679b3b94faaSDavid Teigland 680b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 681b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 682b3b94faaSDavid Teigland { \ 683b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 684b3b94faaSDavid Teigland } \ 685b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 686b3b94faaSDavid Teigland 687b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 688b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 689b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 690b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 691b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 692b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 693b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 694b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 695b3b94faaSDavid Teigland 696b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 697b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 698b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 699b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 700b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 701b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 702b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 703b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 704b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 705ea67eedbSSteven Whitehouse NULL, 706b3b94faaSDavid Teigland }; 707b3b94faaSDavid Teigland 70829695254SArvind Yadav static const struct attribute_group tune_group = { 709b3b94faaSDavid Teigland .name = "tune", 710ea67eedbSSteven Whitehouse .attrs = tune_attrs, 711b3b94faaSDavid Teigland }; 712b3b94faaSDavid Teigland 71329695254SArvind Yadav static const struct attribute_group lock_module_group = { 714f057f6cdSSteven Whitehouse .name = "lock_module", 715f057f6cdSSteven Whitehouse .attrs = lock_module_attrs, 716f057f6cdSSteven Whitehouse }; 717f057f6cdSSteven Whitehouse 718b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 719b3b94faaSDavid Teigland { 720440d6da2SSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 721b3b94faaSDavid Teigland int error; 722440d6da2SSteven Whitehouse char ro[20]; 723440d6da2SSteven Whitehouse char spectator[20]; 724440d6da2SSteven Whitehouse char *envp[] = { ro, spectator, NULL }; 725440d6da2SSteven Whitehouse 726bc98a42cSDavid Howells sprintf(ro, "RDONLY=%d", sb_rdonly(sb)); 727440d6da2SSteven Whitehouse sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); 728b3b94faaSDavid Teigland 729c2a04b02SJamie Iles init_completion(&sdp->sd_kobj_unregister); 7309bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 731901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 732901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 733b3b94faaSDavid Teigland if (error) 7340d515210SBob Peterson goto fail_reg; 735b3b94faaSDavid Teigland 736b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 737b3b94faaSDavid Teigland if (error) 738f6eb5349SSteven Whitehouse goto fail_reg; 739b3b94faaSDavid Teigland 740f057f6cdSSteven Whitehouse error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group); 741f057f6cdSSteven Whitehouse if (error) 742f057f6cdSSteven Whitehouse goto fail_tune; 743f057f6cdSSteven Whitehouse 74431e54b01SSteven Whitehouse error = sysfs_create_link(&sdp->sd_kobj, 74531e54b01SSteven Whitehouse &disk_to_dev(sb->s_bdev->bd_disk)->kobj, 74631e54b01SSteven Whitehouse "device"); 74731e54b01SSteven Whitehouse if (error) 74831e54b01SSteven Whitehouse goto fail_lock_module; 74931e54b01SSteven Whitehouse 750440d6da2SSteven Whitehouse kobject_uevent_env(&sdp->sd_kobj, KOBJ_ADD, envp); 751b3b94faaSDavid Teigland return 0; 752b3b94faaSDavid Teigland 75331e54b01SSteven Whitehouse fail_lock_module: 75431e54b01SSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 755f057f6cdSSteven Whitehouse fail_tune: 756f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &tune_group); 757b3b94faaSDavid Teigland fail_reg: 758af38816eSAndreas Gruenbacher fs_err(sdp, "error %d adding sysfs files\n", error); 7590d515210SBob Peterson kobject_put(&sdp->sd_kobj); 760c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 7610d515210SBob Peterson sb->s_fs_info = NULL; 762b3b94faaSDavid Teigland return error; 763b3b94faaSDavid Teigland } 764b3b94faaSDavid Teigland 765b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 766b3b94faaSDavid Teigland { 76731e54b01SSteven Whitehouse sysfs_remove_link(&sdp->sd_kobj, "device"); 768b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 769f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 770197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 771c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 772b3b94faaSDavid Teigland } 773b3b94faaSDavid Teigland 77456d5f362SGreg Kroah-Hartman static int gfs2_uevent(const struct kobject *kobj, struct kobj_uevent_env *env) 775fdd1062eSSteven Whitehouse { 77656d5f362SGreg Kroah-Hartman const struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 77756d5f362SGreg Kroah-Hartman const struct super_block *s = sdp->sd_vfs; 77802e3cc70SSteven Whitehouse 779fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 780fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 781ba6e9364SSteven Whitehouse if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) 782feb47ca9SSteven Whitehouse add_uevent_var(env, "JOURNALID=%d", sdp->sd_lockstruct.ls_jid); 78385787090SChristoph Hellwig if (!uuid_is_null(&s->s_uuid)) 78485787090SChristoph Hellwig add_uevent_var(env, "UUID=%pUB", &s->s_uuid); 785fdd1062eSSteven Whitehouse return 0; 786fdd1062eSSteven Whitehouse } 787fdd1062eSSteven Whitehouse 7889cd43611SEmese Revfy static const struct kset_uevent_ops gfs2_uevent_ops = { 789fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 790fdd1062eSSteven Whitehouse }; 791fdd1062eSSteven Whitehouse 792b3b94faaSDavid Teigland int gfs2_sys_init(void) 793b3b94faaSDavid Teigland { 794fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 7959bec101aSGreg Kroah-Hartman if (!gfs2_kset) 7969bec101aSGreg Kroah-Hartman return -ENOMEM; 7979bec101aSGreg Kroah-Hartman return 0; 798b3b94faaSDavid Teigland } 799b3b94faaSDavid Teigland 800b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 801b3b94faaSDavid Teigland { 8029bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 803b3b94faaSDavid Teigland } 804b3b94faaSDavid Teigland 805