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" 91*52c2d389SAndreas Gruenbacher "Killing: %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" 10103d468f1SBob Peterson "sd_log_revokes_available: %d\n" 10203d468f1SBob Peterson "sd_log_pinned: %d\n" 10303d468f1SBob Peterson "sd_log_thresh1: %d\n" 10403d468f1SBob Peterson "sd_log_thresh2: %d\n", 1059f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_CHECKED, &f), 1069f9eb5a5SBob Peterson test_bit(SDF_JOURNAL_LIVE, &f), 1079f9eb5a5SBob Peterson (sdp->sd_jdesc ? sdp->sd_jdesc->jd_jid : 0), 1089f9eb5a5SBob Peterson (sdp->sd_args.ar_spectator ? 1 : 0), 1099f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWN, &f), 1109f9eb5a5SBob Peterson test_bit(SDF_NOBARRIERS, &f), 1119f9eb5a5SBob Peterson test_bit(SDF_NORECOVERY, &f), 1129f9eb5a5SBob Peterson test_bit(SDF_DEMOTE, &f), 1139f9eb5a5SBob Peterson test_bit(SDF_NOJOURNALID, &f), 1149f9eb5a5SBob Peterson (sb_rdonly(sdp->sd_vfs) ? 1 : 0), 1159f9eb5a5SBob Peterson test_bit(SDF_RORECOVERY, &f), 1169f9eb5a5SBob Peterson test_bit(SDF_SKIP_DLM_UNLOCK, &f), 1179f9eb5a5SBob Peterson test_bit(SDF_FORCE_AIL_FLUSH, &f), 118cad1e158SAndreas Gruenbacher test_bit(SDF_FREEZE_INITIATOR, &f), 1195432af15SAndreas Gruenbacher test_bit(SDF_FROZEN, &f), 1209f9eb5a5SBob Peterson test_bit(SDF_WITHDRAWING, &f), 1219f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_IN_PROG, &f), 1229f9eb5a5SBob Peterson test_bit(SDF_REMOTE_WITHDRAW, &f), 1239f9eb5a5SBob Peterson test_bit(SDF_WITHDRAW_RECOVERY, &f), 124e7beb8b6SAndreas Gruenbacher test_bit(SDF_KILL, &f), 1259f9eb5a5SBob Peterson sdp->sd_log_error, 1269f9eb5a5SBob Peterson rwsem_is_locked(&sdp->sd_log_flush_lock), 1279f9eb5a5SBob Peterson sdp->sd_log_num_revoke, 1289f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_in_flight), 1299f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_needed), 1309f9eb5a5SBob Peterson atomic_read(&sdp->sd_log_blks_free), 1319f9eb5a5SBob Peterson sdp->sd_log_flush_head, 1329f9eb5a5SBob Peterson sdp->sd_log_flush_tail, 1339f9eb5a5SBob Peterson sdp->sd_log_blks_reserved, 13403d468f1SBob Peterson atomic_read(&sdp->sd_log_revokes_available), 13503d468f1SBob Peterson atomic_read(&sdp->sd_log_pinned), 13603d468f1SBob Peterson atomic_read(&sdp->sd_log_thresh1), 13703d468f1SBob Peterson atomic_read(&sdp->sd_log_thresh2)); 1389f9eb5a5SBob Peterson return s; 1399f9eb5a5SBob Peterson } 1409f9eb5a5SBob Peterson 141b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 142b3b94faaSDavid Teigland { 1433204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 144b3b94faaSDavid Teigland } 145b3b94faaSDavid Teigland 14602e3cc70SSteven Whitehouse static ssize_t uuid_show(struct gfs2_sbd *sdp, char *buf) 14702e3cc70SSteven Whitehouse { 14832e471efSSteven Whitehouse struct super_block *s = sdp->sd_vfs; 14985787090SChristoph Hellwig 15002e3cc70SSteven Whitehouse buf[0] = '\0'; 15185787090SChristoph Hellwig if (uuid_is_null(&s->s_uuid)) 15202e3cc70SSteven Whitehouse return 0; 15385787090SChristoph Hellwig return snprintf(buf, PAGE_SIZE, "%pUB\n", &s->s_uuid); 15402e3cc70SSteven Whitehouse } 15502e3cc70SSteven Whitehouse 156b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 157b3b94faaSDavid Teigland { 158d564053fSSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 159d564053fSSteven Whitehouse int frozen = (sb->s_writers.frozen == SB_UNFROZEN) ? 0 : 1; 160b3b94faaSDavid Teigland 1613566c964Salex chen return snprintf(buf, PAGE_SIZE, "%d\n", frozen); 162b3b94faaSDavid Teigland } 163b3b94faaSDavid Teigland 164b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 165b3b94faaSDavid Teigland { 166e50ead48SFabian Frederick int error, n; 167e50ead48SFabian Frederick 168e50ead48SFabian Frederick error = kstrtoint(buf, 0, &n); 169e50ead48SFabian Frederick if (error) 170e50ead48SFabian Frederick return error; 171b3b94faaSDavid Teigland 172b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 17341735818SZhao Hongjiang return -EPERM; 174b3b94faaSDavid Teigland 175b3b94faaSDavid Teigland switch (n) { 176b3b94faaSDavid Teigland case 0: 177880b9577SDarrick J. Wong error = thaw_super(sdp->sd_vfs, FREEZE_HOLDER_USERSPACE); 178b3b94faaSDavid Teigland break; 179b3b94faaSDavid Teigland case 1: 180880b9577SDarrick J. Wong error = freeze_super(sdp->sd_vfs, FREEZE_HOLDER_USERSPACE); 181b3b94faaSDavid Teigland break; 182b3b94faaSDavid Teigland default: 183d564053fSSteven Whitehouse return -EINVAL; 184b3b94faaSDavid Teigland } 185b3b94faaSDavid Teigland 186d564053fSSteven Whitehouse if (error) { 187af38816eSAndreas Gruenbacher fs_warn(sdp, "freeze %d error %d\n", n, error); 188d564053fSSteven Whitehouse return error; 189d564053fSSteven Whitehouse } 190b3b94faaSDavid Teigland 191d564053fSSteven Whitehouse return len; 192b3b94faaSDavid Teigland } 193b3b94faaSDavid Teigland 194b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 195b3b94faaSDavid Teigland { 1964d927b03SAndreas Gruenbacher unsigned int b = gfs2_withdrawing_or_withdrawn(sdp); 1973204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 198b3b94faaSDavid Teigland } 199b3b94faaSDavid Teigland 200b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 201b3b94faaSDavid Teigland { 202e50ead48SFabian Frederick int error, val; 203e50ead48SFabian Frederick 204b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 20541735818SZhao Hongjiang return -EPERM; 206b3b94faaSDavid Teigland 207e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 208e50ead48SFabian Frederick if (error) 209e50ead48SFabian Frederick return error; 210e50ead48SFabian Frederick 211e50ead48SFabian Frederick if (val != 1) 212b3b94faaSDavid Teigland return -EINVAL; 213b3b94faaSDavid Teigland 214badb55ecSAndreas Gruenbacher gfs2_lm(sdp, "withdrawing from cluster at user's request\n"); 215badb55ecSAndreas Gruenbacher gfs2_withdraw(sdp); 216cb94eb06SJoe Perches 217b3b94faaSDavid Teigland return len; 218b3b94faaSDavid Teigland } 219b3b94faaSDavid Teigland 220b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 221b3b94faaSDavid Teigland size_t len) 222b3b94faaSDavid Teigland { 223e50ead48SFabian Frederick int error, val; 224e50ead48SFabian Frederick 225b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 22641735818SZhao Hongjiang return -EPERM; 227b3b94faaSDavid Teigland 228e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 229e50ead48SFabian Frederick if (error) 230e50ead48SFabian Frederick return error; 231e50ead48SFabian Frederick 232e50ead48SFabian Frederick if (val != 1) 233b3b94faaSDavid Teigland return -EINVAL; 234b3b94faaSDavid Teigland 2358c42d637SSteven Whitehouse gfs2_statfs_sync(sdp->sd_vfs, 0); 236b3b94faaSDavid Teigland return len; 237b3b94faaSDavid Teigland } 238b3b94faaSDavid Teigland 239b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 240b3b94faaSDavid Teigland size_t len) 241b3b94faaSDavid Teigland { 242e50ead48SFabian Frederick int error, val; 243e50ead48SFabian Frederick 244b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 24541735818SZhao Hongjiang return -EPERM; 246b3b94faaSDavid Teigland 247e50ead48SFabian Frederick error = kstrtoint(buf, 0, &val); 248e50ead48SFabian Frederick if (error) 249e50ead48SFabian Frederick return error; 250e50ead48SFabian Frederick 251e50ead48SFabian Frederick if (val != 1) 252b3b94faaSDavid Teigland return -EINVAL; 253b3b94faaSDavid Teigland 254ceed1723SJan Kara gfs2_quota_sync(sdp->sd_vfs, 0); 255b3b94faaSDavid Teigland return len; 256b3b94faaSDavid Teigland } 257b3b94faaSDavid Teigland 258b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 259b3b94faaSDavid Teigland size_t len) 260b3b94faaSDavid Teigland { 261ed87dabcSEric W. Biederman struct kqid qid; 262ea762338SSteven Whitehouse int error; 263cd915493SSteven Whitehouse u32 id; 264b3b94faaSDavid Teigland 265b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 26641735818SZhao Hongjiang return -EPERM; 267b3b94faaSDavid Teigland 268e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 269e50ead48SFabian Frederick if (error) 270e50ead48SFabian Frederick return error; 271b3b94faaSDavid Teigland 272ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), USRQUOTA, id); 273ed87dabcSEric W. Biederman if (!qid_valid(qid)) 274ed87dabcSEric W. Biederman return -EINVAL; 275ed87dabcSEric W. Biederman 276ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 277ea762338SSteven Whitehouse return error ? error : len; 278b3b94faaSDavid Teigland } 279b3b94faaSDavid Teigland 280b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 281b3b94faaSDavid Teigland size_t len) 282b3b94faaSDavid Teigland { 283ed87dabcSEric W. Biederman struct kqid qid; 284ea762338SSteven Whitehouse int error; 285cd915493SSteven Whitehouse u32 id; 286b3b94faaSDavid Teigland 287b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 28841735818SZhao Hongjiang return -EPERM; 289b3b94faaSDavid Teigland 290e50ead48SFabian Frederick error = kstrtou32(buf, 0, &id); 291e50ead48SFabian Frederick if (error) 292e50ead48SFabian Frederick return error; 293b3b94faaSDavid Teigland 294ed87dabcSEric W. Biederman qid = make_kqid(current_user_ns(), GRPQUOTA, id); 295ed87dabcSEric W. Biederman if (!qid_valid(qid)) 296ed87dabcSEric W. Biederman return -EINVAL; 297ed87dabcSEric W. Biederman 298ed87dabcSEric W. Biederman error = gfs2_quota_refresh(sdp, qid); 299ea762338SSteven Whitehouse return error ? error : len; 300b3b94faaSDavid Teigland } 301b3b94faaSDavid Teigland 30264d576baSSteven Whitehouse static ssize_t demote_rq_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 30364d576baSSteven Whitehouse { 30464d576baSSteven Whitehouse struct gfs2_glock *gl; 30564d576baSSteven Whitehouse const struct gfs2_glock_operations *glops; 30664d576baSSteven Whitehouse unsigned int glmode; 30764d576baSSteven Whitehouse unsigned int gltype; 30864d576baSSteven Whitehouse unsigned long long glnum; 30964d576baSSteven Whitehouse char mode[16]; 31064d576baSSteven Whitehouse int rv; 31164d576baSSteven Whitehouse 31264d576baSSteven Whitehouse if (!capable(CAP_SYS_ADMIN)) 31341735818SZhao Hongjiang return -EPERM; 31464d576baSSteven Whitehouse 31564d576baSSteven Whitehouse rv = sscanf(buf, "%u:%llu %15s", &gltype, &glnum, 31664d576baSSteven Whitehouse mode); 31764d576baSSteven Whitehouse if (rv != 3) 31864d576baSSteven Whitehouse return -EINVAL; 31964d576baSSteven Whitehouse 32064d576baSSteven Whitehouse if (strcmp(mode, "EX") == 0) 32164d576baSSteven Whitehouse glmode = LM_ST_UNLOCKED; 32264d576baSSteven Whitehouse else if ((strcmp(mode, "CW") == 0) || (strcmp(mode, "DF") == 0)) 32364d576baSSteven Whitehouse glmode = LM_ST_DEFERRED; 32464d576baSSteven Whitehouse else if ((strcmp(mode, "PR") == 0) || (strcmp(mode, "SH") == 0)) 32564d576baSSteven Whitehouse glmode = LM_ST_SHARED; 32664d576baSSteven Whitehouse else 32764d576baSSteven Whitehouse return -EINVAL; 32864d576baSSteven Whitehouse 32964d576baSSteven Whitehouse if (gltype > LM_TYPE_JOURNAL) 33064d576baSSteven Whitehouse return -EINVAL; 33124972557SBenjamin Marzinski if (gltype == LM_TYPE_NONDISK && glnum == GFS2_FREEZE_LOCK) 33224972557SBenjamin Marzinski glops = &gfs2_freeze_glops; 33313466985SSteven Whitehouse else 33464d576baSSteven Whitehouse glops = gfs2_glops_list[gltype]; 33564d576baSSteven Whitehouse if (glops == NULL) 33664d576baSSteven Whitehouse return -EINVAL; 3376a99be5dSSteven Whitehouse if (!test_and_set_bit(SDF_DEMOTE, &sdp->sd_flags)) 338913a71d2SSteven Whitehouse fs_info(sdp, "demote interface used\n"); 33964d576baSSteven Whitehouse rv = gfs2_glock_get(sdp, glnum, glops, 0, &gl); 34064d576baSSteven Whitehouse if (rv) 34164d576baSSteven Whitehouse return rv; 34264d576baSSteven Whitehouse gfs2_glock_cb(gl, glmode); 34364d576baSSteven Whitehouse gfs2_glock_put(gl); 34464d576baSSteven Whitehouse return len; 34564d576baSSteven Whitehouse } 34664d576baSSteven Whitehouse 347b3b94faaSDavid Teigland 348b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 349b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 350b3b94faaSDavid Teigland 351b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 352b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 35302e3cc70SSteven Whitehouse GFS2_ATTR(uuid, 0444, uuid_show, NULL); 354b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 355b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 356b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 357b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 358b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 359b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 36064d576baSSteven Whitehouse GFS2_ATTR(demote_rq, 0200, NULL, demote_rq_store); 3619f9eb5a5SBob Peterson GFS2_ATTR(status, 0400, status_show, NULL); 362b3b94faaSDavid Teigland 363b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 364b3b94faaSDavid Teigland &gfs2_attr_id.attr, 365b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 36602e3cc70SSteven Whitehouse &gfs2_attr_uuid.attr, 367b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 368b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 369b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 370b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 371b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 372b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 37364d576baSSteven Whitehouse &gfs2_attr_demote_rq.attr, 3749f9eb5a5SBob Peterson &gfs2_attr_status.attr, 375b3b94faaSDavid Teigland NULL, 376b3b94faaSDavid Teigland }; 377ef254d13SKimberly Brown ATTRIBUTE_GROUPS(gfs2); 378b3b94faaSDavid Teigland 3790d515210SBob Peterson static void gfs2_sbd_release(struct kobject *kobj) 3800d515210SBob Peterson { 3810d515210SBob Peterson struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 3820d515210SBob Peterson 383c2a04b02SJamie Iles complete(&sdp->sd_kobj_unregister); 3840d515210SBob Peterson } 3850d515210SBob Peterson 386b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 3870d515210SBob Peterson .release = gfs2_sbd_release, 388ef254d13SKimberly Brown .default_groups = gfs2_groups, 389b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 390b3b94faaSDavid Teigland }; 391b3b94faaSDavid Teigland 392f057f6cdSSteven Whitehouse 393f057f6cdSSteven Whitehouse /* 394f057f6cdSSteven Whitehouse * lock_module. Originally from lock_dlm 395f057f6cdSSteven Whitehouse */ 396f057f6cdSSteven Whitehouse 397f057f6cdSSteven Whitehouse static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf) 398f057f6cdSSteven Whitehouse { 399f057f6cdSSteven Whitehouse const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops; 400f057f6cdSSteven Whitehouse return sprintf(buf, "%s\n", ops->lm_proto_name); 401f057f6cdSSteven Whitehouse } 402f057f6cdSSteven Whitehouse 403f057f6cdSSteven Whitehouse static ssize_t block_show(struct gfs2_sbd *sdp, char *buf) 404f057f6cdSSteven Whitehouse { 405f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 406f057f6cdSSteven Whitehouse ssize_t ret; 407f057f6cdSSteven Whitehouse int val = 0; 408f057f6cdSSteven Whitehouse 409e0c2a9aaSDavid Teigland if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags)) 410f057f6cdSSteven Whitehouse val = 1; 411f057f6cdSSteven Whitehouse ret = sprintf(buf, "%d\n", val); 412f057f6cdSSteven Whitehouse return ret; 413f057f6cdSSteven Whitehouse } 414f057f6cdSSteven Whitehouse 415f057f6cdSSteven Whitehouse static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 416f057f6cdSSteven Whitehouse { 417f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 418e50ead48SFabian Frederick int ret, val; 419f057f6cdSSteven Whitehouse 420e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 421e50ead48SFabian Frederick if (ret) 422e50ead48SFabian Frederick return ret; 423f057f6cdSSteven Whitehouse 424f057f6cdSSteven Whitehouse if (val == 1) 425e0c2a9aaSDavid Teigland set_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 426f057f6cdSSteven Whitehouse else if (val == 0) { 427e0c2a9aaSDavid Teigland clear_bit(DFL_BLOCK_LOCKS, &ls->ls_recover_flags); 4284e857c58SPeter Zijlstra smp_mb__after_atomic(); 429f057f6cdSSteven Whitehouse gfs2_glock_thaw(sdp); 430f057f6cdSSteven Whitehouse } else { 431e50ead48SFabian Frederick return -EINVAL; 432f057f6cdSSteven Whitehouse } 433e50ead48SFabian Frederick return len; 434f057f6cdSSteven Whitehouse } 435f057f6cdSSteven Whitehouse 436fd95e81cSSteven Whitehouse static ssize_t wdack_show(struct gfs2_sbd *sdp, char *buf) 437fd95e81cSSteven Whitehouse { 438fd95e81cSSteven Whitehouse int val = completion_done(&sdp->sd_wdack) ? 1 : 0; 439fd95e81cSSteven Whitehouse 440fd95e81cSSteven Whitehouse return sprintf(buf, "%d\n", val); 441fd95e81cSSteven Whitehouse } 442fd95e81cSSteven Whitehouse 443fd95e81cSSteven Whitehouse static ssize_t wdack_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 444fd95e81cSSteven Whitehouse { 445e50ead48SFabian Frederick int ret, val; 446fd95e81cSSteven Whitehouse 447e50ead48SFabian Frederick ret = kstrtoint(buf, 0, &val); 448e50ead48SFabian Frederick if (ret) 449e50ead48SFabian Frederick return ret; 450fd95e81cSSteven Whitehouse 451fd95e81cSSteven Whitehouse if ((val == 1) && 452fd95e81cSSteven Whitehouse !strcmp(sdp->sd_lockstruct.ls_ops->lm_proto_name, "lock_dlm")) 453fd95e81cSSteven Whitehouse complete(&sdp->sd_wdack); 454fd95e81cSSteven Whitehouse else 455e50ead48SFabian Frederick return -EINVAL; 456e50ead48SFabian Frederick return len; 457fd95e81cSSteven Whitehouse } 458fd95e81cSSteven Whitehouse 459f057f6cdSSteven Whitehouse static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 460f057f6cdSSteven Whitehouse { 461f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 462f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first); 463f057f6cdSSteven Whitehouse } 464f057f6cdSSteven Whitehouse 465ba6e9364SSteven Whitehouse static ssize_t lkfirst_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 466ba6e9364SSteven Whitehouse { 467ba6e9364SSteven Whitehouse unsigned first; 468ba6e9364SSteven Whitehouse int rv; 469ba6e9364SSteven Whitehouse 470ba6e9364SSteven Whitehouse rv = sscanf(buf, "%u", &first); 471ba6e9364SSteven Whitehouse if (rv != 1 || first > 1) 472ba6e9364SSteven Whitehouse return -EINVAL; 4733942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 4743942ae53SSteven Whitehouse if (rv) 4753942ae53SSteven Whitehouse return rv; 476ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 477ba6e9364SSteven Whitehouse rv = -EBUSY; 478ba6e9364SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 479ba6e9364SSteven Whitehouse goto out; 480ba6e9364SSteven Whitehouse rv = -EINVAL; 481ba6e9364SSteven Whitehouse if (sdp->sd_args.ar_spectator) 482ba6e9364SSteven Whitehouse goto out; 483ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 484ba6e9364SSteven Whitehouse goto out; 485ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_first = first; 486ba6e9364SSteven Whitehouse rv = 0; 487ba6e9364SSteven Whitehouse out: 488ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 489ba6e9364SSteven Whitehouse return rv ? rv : len; 490ba6e9364SSteven Whitehouse } 491ba6e9364SSteven Whitehouse 492f057f6cdSSteven Whitehouse static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf) 493f057f6cdSSteven Whitehouse { 494f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 495e0c2a9aaSDavid Teigland return sprintf(buf, "%d\n", !!test_bit(DFL_FIRST_MOUNT_DONE, &ls->ls_recover_flags)); 496f057f6cdSSteven Whitehouse } 497f057f6cdSSteven Whitehouse 498e0c2a9aaSDavid Teigland int gfs2_recover_set(struct gfs2_sbd *sdp, unsigned jid) 499f057f6cdSSteven Whitehouse { 500f057f6cdSSteven Whitehouse struct gfs2_jdesc *jd; 501fe64d517SSteven Whitehouse int rv; 502f057f6cdSSteven Whitehouse 5030e48e055SBob Peterson /* Wait for our primary journal to be initialized */ 5040e48e055SBob Peterson wait_for_completion(&sdp->sd_journal_ready); 5050e48e055SBob Peterson 506f057f6cdSSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 507fe64d517SSteven Whitehouse rv = -EBUSY; 5084a772772SBob Peterson /** 5094a772772SBob Peterson * If we're a spectator, we use journal0, but it's not really ours. 5104a772772SBob Peterson * So we need to wait for its recovery too. If we skip it we'd never 5114a772772SBob Peterson * queue work to the recovery workqueue, and so its completion would 5124a772772SBob Peterson * never clear the DFL_BLOCK_LOCKS flag, so all our locks would 5134a772772SBob Peterson * permanently stop working. 5144a772772SBob Peterson */ 515601ef0d5SBob Peterson if (!sdp->sd_jdesc) 516601ef0d5SBob Peterson goto out; 5174a772772SBob Peterson if (sdp->sd_jdesc->jd_jid == jid && !sdp->sd_args.ar_spectator) 518fe64d517SSteven Whitehouse goto out; 519fe64d517SSteven Whitehouse rv = -ENOENT; 520f057f6cdSSteven Whitehouse list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { 5214a772772SBob Peterson if (jd->jd_jid != jid && !sdp->sd_args.ar_spectator) 522f057f6cdSSteven Whitehouse continue; 5236ecd7c2dSTejun Heo rv = gfs2_recover_journal(jd, false); 524f057f6cdSSteven Whitehouse break; 525f057f6cdSSteven Whitehouse } 526fe64d517SSteven Whitehouse out: 527f057f6cdSSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 528e0c2a9aaSDavid Teigland return rv; 529e0c2a9aaSDavid Teigland } 530e0c2a9aaSDavid Teigland 531e0c2a9aaSDavid Teigland static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 532e0c2a9aaSDavid Teigland { 533e0c2a9aaSDavid Teigland unsigned jid; 534e0c2a9aaSDavid Teigland int rv; 535e0c2a9aaSDavid Teigland 536e0c2a9aaSDavid Teigland rv = sscanf(buf, "%u", &jid); 537e0c2a9aaSDavid Teigland if (rv != 1) 538e0c2a9aaSDavid Teigland return -EINVAL; 539e0c2a9aaSDavid Teigland 5401a058f52SDavid Teigland if (test_bit(SDF_NORECOVERY, &sdp->sd_flags)) { 5411a058f52SDavid Teigland rv = -ESHUTDOWN; 5421a058f52SDavid Teigland goto out; 5431a058f52SDavid Teigland } 544e0c2a9aaSDavid Teigland 5451a058f52SDavid Teigland rv = gfs2_recover_set(sdp, jid); 5461a058f52SDavid Teigland out: 547fe64d517SSteven Whitehouse return rv ? rv : len; 548f057f6cdSSteven Whitehouse } 549f057f6cdSSteven Whitehouse 550f057f6cdSSteven Whitehouse static ssize_t recover_done_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_done); 554f057f6cdSSteven Whitehouse } 555f057f6cdSSteven Whitehouse 556f057f6cdSSteven Whitehouse static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf) 557f057f6cdSSteven Whitehouse { 558f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 559f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_status); 560f057f6cdSSteven Whitehouse } 561f057f6cdSSteven Whitehouse 562e1b28aabSSteven Whitehouse static ssize_t jid_show(struct gfs2_sbd *sdp, char *buf) 563e1b28aabSSteven Whitehouse { 564feb47ca9SSteven Whitehouse return sprintf(buf, "%d\n", sdp->sd_lockstruct.ls_jid); 565e1b28aabSSteven Whitehouse } 566e1b28aabSSteven Whitehouse 567ba6e9364SSteven Whitehouse static ssize_t jid_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 568ba6e9364SSteven Whitehouse { 569feb47ca9SSteven Whitehouse int jid; 570ba6e9364SSteven Whitehouse int rv; 571ba6e9364SSteven Whitehouse 572feb47ca9SSteven Whitehouse rv = sscanf(buf, "%d", &jid); 573ba6e9364SSteven Whitehouse if (rv != 1) 574ba6e9364SSteven Whitehouse return -EINVAL; 5753942ae53SSteven Whitehouse rv = wait_for_completion_killable(&sdp->sd_locking_init); 5763942ae53SSteven Whitehouse if (rv) 5773942ae53SSteven Whitehouse return rv; 578ba6e9364SSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 579ba6e9364SSteven Whitehouse rv = -EINVAL; 580ba6e9364SSteven Whitehouse if (sdp->sd_lockstruct.ls_ops->lm_mount == NULL) 581ba6e9364SSteven Whitehouse goto out; 582ba6e9364SSteven Whitehouse rv = -EBUSY; 583feb47ca9SSteven Whitehouse if (test_bit(SDF_NOJOURNALID, &sdp->sd_flags) == 0) 584ba6e9364SSteven Whitehouse goto out; 585feb47ca9SSteven Whitehouse rv = 0; 586feb47ca9SSteven Whitehouse if (sdp->sd_args.ar_spectator && jid > 0) 587feb47ca9SSteven Whitehouse rv = jid = -EINVAL; 588ba6e9364SSteven Whitehouse sdp->sd_lockstruct.ls_jid = jid; 589feb47ca9SSteven Whitehouse clear_bit(SDF_NOJOURNALID, &sdp->sd_flags); 5904e857c58SPeter Zijlstra smp_mb__after_atomic(); 591ba6e9364SSteven Whitehouse wake_up_bit(&sdp->sd_flags, SDF_NOJOURNALID); 592ba6e9364SSteven Whitehouse out: 593ba6e9364SSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 594ba6e9364SSteven Whitehouse return rv ? rv : len; 595ba6e9364SSteven Whitehouse } 596ba6e9364SSteven Whitehouse 597f057f6cdSSteven Whitehouse #define GDLM_ATTR(_name,_mode,_show,_store) \ 59848c2b613SSteven Whitehouse static struct gfs2_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) 599f057f6cdSSteven Whitehouse 600f057f6cdSSteven Whitehouse GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 601f057f6cdSSteven Whitehouse GDLM_ATTR(block, 0644, block_show, block_store); 602fd95e81cSSteven Whitehouse GDLM_ATTR(withdraw, 0644, wdack_show, wdack_store); 603ba6e9364SSteven Whitehouse GDLM_ATTR(jid, 0644, jid_show, jid_store); 604ba6e9364SSteven Whitehouse GDLM_ATTR(first, 0644, lkfirst_show, lkfirst_store); 605f057f6cdSSteven Whitehouse GDLM_ATTR(first_done, 0444, first_done_show, NULL); 606d7e623daSSteven Whitehouse GDLM_ATTR(recover, 0600, NULL, recover_store); 607f057f6cdSSteven Whitehouse GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); 608f057f6cdSSteven Whitehouse GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); 609f057f6cdSSteven Whitehouse 610f057f6cdSSteven Whitehouse static struct attribute *lock_module_attrs[] = { 611f057f6cdSSteven Whitehouse &gdlm_attr_proto_name.attr, 612f057f6cdSSteven Whitehouse &gdlm_attr_block.attr, 613f057f6cdSSteven Whitehouse &gdlm_attr_withdraw.attr, 614e1b28aabSSteven Whitehouse &gdlm_attr_jid.attr, 615f057f6cdSSteven Whitehouse &gdlm_attr_first.attr, 616f057f6cdSSteven Whitehouse &gdlm_attr_first_done.attr, 617f057f6cdSSteven Whitehouse &gdlm_attr_recover.attr, 618f057f6cdSSteven Whitehouse &gdlm_attr_recover_done.attr, 619f057f6cdSSteven Whitehouse &gdlm_attr_recover_status.attr, 620ea67eedbSSteven Whitehouse NULL, 621b3b94faaSDavid Teigland }; 622b3b94faaSDavid Teigland 623b3b94faaSDavid Teigland /* 624b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 625b3b94faaSDavid Teigland */ 626b3b94faaSDavid Teigland 627b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 628b3b94faaSDavid Teigland { 6293204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 6303204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 631b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 632b3b94faaSDavid Teigland } 633b3b94faaSDavid Teigland 634b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 635b3b94faaSDavid Teigland size_t len) 636b3b94faaSDavid Teigland { 637b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 638b3b94faaSDavid Teigland unsigned int x, y; 639b3b94faaSDavid Teigland 640b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 64141735818SZhao Hongjiang return -EPERM; 642b3b94faaSDavid Teigland 643b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 644b3b94faaSDavid Teigland return -EINVAL; 645b3b94faaSDavid Teigland 646b3b94faaSDavid Teigland spin_lock(>->gt_spin); 647b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 648b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 649b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 650b3b94faaSDavid Teigland return len; 651b3b94faaSDavid Teigland } 652b3b94faaSDavid Teigland 653b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 654b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 655b3b94faaSDavid Teigland { 656b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 657b3b94faaSDavid Teigland unsigned int x; 658e50ead48SFabian Frederick int error; 659b3b94faaSDavid Teigland 660b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 66141735818SZhao Hongjiang return -EPERM; 662b3b94faaSDavid Teigland 663e50ead48SFabian Frederick error = kstrtouint(buf, 0, &x); 664e50ead48SFabian Frederick if (error) 665e50ead48SFabian Frederick return error; 666b3b94faaSDavid Teigland 667b3b94faaSDavid Teigland if (check_zero && !x) 668b3b94faaSDavid Teigland return -EINVAL; 669b3b94faaSDavid Teigland 670b3b94faaSDavid Teigland spin_lock(>->gt_spin); 671b3b94faaSDavid Teigland *field = x; 672b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 673b3b94faaSDavid Teigland return len; 674b3b94faaSDavid Teigland } 675b3b94faaSDavid Teigland 676b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 67748c2b613SSteven Whitehouse static struct gfs2_attr tune_attr_##name = __ATTR(name, 0644, show, store) 678b3b94faaSDavid Teigland 679b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 680b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 681b3b94faaSDavid Teigland { \ 6823204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 683b3b94faaSDavid Teigland } \ 684b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 685b3b94faaSDavid Teigland 686b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 687b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 688b3b94faaSDavid Teigland { \ 689b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 690b3b94faaSDavid Teigland } \ 691b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 692b3b94faaSDavid Teigland 693b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 694b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 695b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 696b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 697b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 698b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 699b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 700b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 701b3b94faaSDavid Teigland 702b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 703b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 704b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 705b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 706b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 707b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 708b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 709b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 710b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 711ea67eedbSSteven Whitehouse NULL, 712b3b94faaSDavid Teigland }; 713b3b94faaSDavid Teigland 71429695254SArvind Yadav static const struct attribute_group tune_group = { 715b3b94faaSDavid Teigland .name = "tune", 716ea67eedbSSteven Whitehouse .attrs = tune_attrs, 717b3b94faaSDavid Teigland }; 718b3b94faaSDavid Teigland 71929695254SArvind Yadav static const struct attribute_group lock_module_group = { 720f057f6cdSSteven Whitehouse .name = "lock_module", 721f057f6cdSSteven Whitehouse .attrs = lock_module_attrs, 722f057f6cdSSteven Whitehouse }; 723f057f6cdSSteven Whitehouse 724b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 725b3b94faaSDavid Teigland { 726440d6da2SSteven Whitehouse struct super_block *sb = sdp->sd_vfs; 727b3b94faaSDavid Teigland int error; 728440d6da2SSteven Whitehouse char ro[20]; 729440d6da2SSteven Whitehouse char spectator[20]; 730440d6da2SSteven Whitehouse char *envp[] = { ro, spectator, NULL }; 731440d6da2SSteven Whitehouse 732bc98a42cSDavid Howells sprintf(ro, "RDONLY=%d", sb_rdonly(sb)); 733440d6da2SSteven Whitehouse sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0); 734b3b94faaSDavid Teigland 735c2a04b02SJamie Iles init_completion(&sdp->sd_kobj_unregister); 7369bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 737901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 738901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 739b3b94faaSDavid Teigland if (error) 7400d515210SBob Peterson goto fail_reg; 741b3b94faaSDavid Teigland 742b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 743b3b94faaSDavid Teigland if (error) 744f6eb5349SSteven Whitehouse goto fail_reg; 745b3b94faaSDavid Teigland 746f057f6cdSSteven Whitehouse error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group); 747f057f6cdSSteven Whitehouse if (error) 748f057f6cdSSteven Whitehouse goto fail_tune; 749f057f6cdSSteven Whitehouse 75031e54b01SSteven Whitehouse error = sysfs_create_link(&sdp->sd_kobj, 75131e54b01SSteven Whitehouse &disk_to_dev(sb->s_bdev->bd_disk)->kobj, 75231e54b01SSteven Whitehouse "device"); 75331e54b01SSteven Whitehouse if (error) 75431e54b01SSteven Whitehouse goto fail_lock_module; 75531e54b01SSteven Whitehouse 756440d6da2SSteven Whitehouse kobject_uevent_env(&sdp->sd_kobj, KOBJ_ADD, envp); 757b3b94faaSDavid Teigland return 0; 758b3b94faaSDavid Teigland 75931e54b01SSteven Whitehouse fail_lock_module: 76031e54b01SSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 761f057f6cdSSteven Whitehouse fail_tune: 762f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &tune_group); 763b3b94faaSDavid Teigland fail_reg: 764af38816eSAndreas Gruenbacher fs_err(sdp, "error %d adding sysfs files\n", error); 7650d515210SBob Peterson kobject_put(&sdp->sd_kobj); 766c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 7670d515210SBob Peterson sb->s_fs_info = NULL; 768b3b94faaSDavid Teigland return error; 769b3b94faaSDavid Teigland } 770b3b94faaSDavid Teigland 771b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 772b3b94faaSDavid Teigland { 77331e54b01SSteven Whitehouse sysfs_remove_link(&sdp->sd_kobj, "device"); 774b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 775f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 776197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 777c2a04b02SJamie Iles wait_for_completion(&sdp->sd_kobj_unregister); 778b3b94faaSDavid Teigland } 779b3b94faaSDavid Teigland 78056d5f362SGreg Kroah-Hartman static int gfs2_uevent(const struct kobject *kobj, struct kobj_uevent_env *env) 781fdd1062eSSteven Whitehouse { 78256d5f362SGreg Kroah-Hartman const struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 78356d5f362SGreg Kroah-Hartman const struct super_block *s = sdp->sd_vfs; 78402e3cc70SSteven Whitehouse 785fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 786fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 787ba6e9364SSteven Whitehouse if (!test_bit(SDF_NOJOURNALID, &sdp->sd_flags)) 788feb47ca9SSteven Whitehouse add_uevent_var(env, "JOURNALID=%d", sdp->sd_lockstruct.ls_jid); 78985787090SChristoph Hellwig if (!uuid_is_null(&s->s_uuid)) 79085787090SChristoph Hellwig add_uevent_var(env, "UUID=%pUB", &s->s_uuid); 791fdd1062eSSteven Whitehouse return 0; 792fdd1062eSSteven Whitehouse } 793fdd1062eSSteven Whitehouse 7949cd43611SEmese Revfy static const struct kset_uevent_ops gfs2_uevent_ops = { 795fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 796fdd1062eSSteven Whitehouse }; 797fdd1062eSSteven Whitehouse 798b3b94faaSDavid Teigland int gfs2_sys_init(void) 799b3b94faaSDavid Teigland { 800fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 8019bec101aSGreg Kroah-Hartman if (!gfs2_kset) 8029bec101aSGreg Kroah-Hartman return -ENOMEM; 8039bec101aSGreg Kroah-Hartman return 0; 804b3b94faaSDavid Teigland } 805b3b94faaSDavid Teigland 806b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 807b3b94faaSDavid Teigland { 8089bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 809b3b94faaSDavid Teigland } 810b3b94faaSDavid Teigland 811