1b3b94faaSDavid Teigland /* 2b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 33a8a9a10SSteven Whitehouse * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. 4b3b94faaSDavid Teigland * 5b3b94faaSDavid Teigland * This copyrighted material is made available to anyone wishing to use, 6b3b94faaSDavid Teigland * modify, copy, or redistribute it subject to the terms and conditions 7e9fc2aa0SSteven Whitehouse * of the GNU General Public License version 2. 8b3b94faaSDavid Teigland */ 9b3b94faaSDavid Teigland 10b3b94faaSDavid Teigland #include <linux/sched.h> 11b3b94faaSDavid Teigland #include <linux/slab.h> 12b3b94faaSDavid Teigland #include <linux/spinlock.h> 13b3b94faaSDavid Teigland #include <linux/completion.h> 14b3b94faaSDavid Teigland #include <linux/buffer_head.h> 15b3b94faaSDavid Teigland #include <linux/module.h> 16b3b94faaSDavid Teigland #include <linux/kobject.h> 17b3b94faaSDavid Teigland #include <asm/uaccess.h> 18*f057f6cdSSteven Whitehouse #include <linux/gfs2_ondisk.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" 27b3b94faaSDavid Teigland 28b3b94faaSDavid Teigland static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) 29b3b94faaSDavid Teigland { 30c7227e46SBob Peterson return snprintf(buf, PAGE_SIZE, "%u:%u\n", 31c7227e46SBob Peterson MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev)); 32b3b94faaSDavid Teigland } 33b3b94faaSDavid Teigland 34b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 35b3b94faaSDavid Teigland { 363204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 37b3b94faaSDavid Teigland } 38b3b94faaSDavid Teigland 39b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 40b3b94faaSDavid Teigland { 41b3b94faaSDavid Teigland unsigned int count; 42b3b94faaSDavid Teigland 43f55ab26aSSteven Whitehouse mutex_lock(&sdp->sd_freeze_lock); 44b3b94faaSDavid Teigland count = sdp->sd_freeze_count; 45f55ab26aSSteven Whitehouse mutex_unlock(&sdp->sd_freeze_lock); 46b3b94faaSDavid Teigland 473204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", count); 48b3b94faaSDavid Teigland } 49b3b94faaSDavid Teigland 50b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 51b3b94faaSDavid Teigland { 52b3b94faaSDavid Teigland ssize_t ret = len; 53b3b94faaSDavid Teigland int error = 0; 54b3b94faaSDavid Teigland int n = simple_strtol(buf, NULL, 0); 55b3b94faaSDavid Teigland 56b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 57b3b94faaSDavid Teigland return -EACCES; 58b3b94faaSDavid Teigland 59b3b94faaSDavid Teigland switch (n) { 60b3b94faaSDavid Teigland case 0: 61b3b94faaSDavid Teigland gfs2_unfreeze_fs(sdp); 62b3b94faaSDavid Teigland break; 63b3b94faaSDavid Teigland case 1: 64b3b94faaSDavid Teigland error = gfs2_freeze_fs(sdp); 65b3b94faaSDavid Teigland break; 66b3b94faaSDavid Teigland default: 67b3b94faaSDavid Teigland ret = -EINVAL; 68b3b94faaSDavid Teigland } 69b3b94faaSDavid Teigland 70b3b94faaSDavid Teigland if (error) 71b3b94faaSDavid Teigland fs_warn(sdp, "freeze %d error %d", n, error); 72b3b94faaSDavid Teigland 73b3b94faaSDavid Teigland return ret; 74b3b94faaSDavid Teigland } 75b3b94faaSDavid Teigland 76b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 77b3b94faaSDavid Teigland { 78b3b94faaSDavid Teigland unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags); 793204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 80b3b94faaSDavid Teigland } 81b3b94faaSDavid Teigland 82b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 83b3b94faaSDavid Teigland { 84b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 85b3b94faaSDavid Teigland return -EACCES; 86b3b94faaSDavid Teigland 87b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 88b3b94faaSDavid Teigland return -EINVAL; 89b3b94faaSDavid Teigland 90b3b94faaSDavid Teigland gfs2_lm_withdraw(sdp, 91b3b94faaSDavid Teigland "GFS2: fsid=%s: withdrawing from cluster at user's request\n", 92b3b94faaSDavid Teigland sdp->sd_fsname); 93b3b94faaSDavid Teigland return len; 94b3b94faaSDavid Teigland } 95b3b94faaSDavid Teigland 96b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 97b3b94faaSDavid Teigland size_t len) 98b3b94faaSDavid Teigland { 99b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 100b3b94faaSDavid Teigland return -EACCES; 101b3b94faaSDavid Teigland 102b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 103b3b94faaSDavid Teigland return -EINVAL; 104b3b94faaSDavid Teigland 105b3b94faaSDavid Teigland gfs2_statfs_sync(sdp); 106b3b94faaSDavid Teigland return len; 107b3b94faaSDavid Teigland } 108b3b94faaSDavid Teigland 109b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 110b3b94faaSDavid Teigland size_t len) 111b3b94faaSDavid Teigland { 112b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 113b3b94faaSDavid Teigland return -EACCES; 114b3b94faaSDavid Teigland 115b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 116b3b94faaSDavid Teigland return -EINVAL; 117b3b94faaSDavid Teigland 118b3b94faaSDavid Teigland gfs2_quota_sync(sdp); 119b3b94faaSDavid Teigland return len; 120b3b94faaSDavid Teigland } 121b3b94faaSDavid Teigland 122b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 123b3b94faaSDavid Teigland size_t len) 124b3b94faaSDavid Teigland { 125cd915493SSteven Whitehouse u32 id; 126b3b94faaSDavid Teigland 127b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 128b3b94faaSDavid Teigland return -EACCES; 129b3b94faaSDavid Teigland 130b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 131b3b94faaSDavid Teigland 132b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 1, id); 133b3b94faaSDavid Teigland return len; 134b3b94faaSDavid Teigland } 135b3b94faaSDavid Teigland 136b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 137b3b94faaSDavid Teigland size_t len) 138b3b94faaSDavid Teigland { 139cd915493SSteven Whitehouse u32 id; 140b3b94faaSDavid Teigland 141b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 142b3b94faaSDavid Teigland return -EACCES; 143b3b94faaSDavid Teigland 144b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 145b3b94faaSDavid Teigland 146b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 0, id); 147b3b94faaSDavid Teigland return len; 148b3b94faaSDavid Teigland } 149b3b94faaSDavid Teigland 150b3b94faaSDavid Teigland struct gfs2_attr { 151b3b94faaSDavid Teigland struct attribute attr; 152b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 153b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 154b3b94faaSDavid Teigland }; 155b3b94faaSDavid Teigland 156b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 157b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 158b3b94faaSDavid Teigland 159b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 160b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 161b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 162b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 163b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 164b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 165b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 166b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 167b3b94faaSDavid Teigland 168b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 169b3b94faaSDavid Teigland &gfs2_attr_id.attr, 170b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 171b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 172b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 173b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 174b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 175b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 176b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 177b3b94faaSDavid Teigland NULL, 178b3b94faaSDavid Teigland }; 179b3b94faaSDavid Teigland 180b3b94faaSDavid Teigland static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, 181b3b94faaSDavid Teigland char *buf) 182b3b94faaSDavid Teigland { 183b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 184b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 185b3b94faaSDavid Teigland return a->show ? a->show(sdp, buf) : 0; 186b3b94faaSDavid Teigland } 187b3b94faaSDavid Teigland 188b3b94faaSDavid Teigland static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, 189b3b94faaSDavid Teigland const char *buf, size_t len) 190b3b94faaSDavid Teigland { 191b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 192b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 193b3b94faaSDavid Teigland return a->store ? a->store(sdp, buf, len) : len; 194b3b94faaSDavid Teigland } 195b3b94faaSDavid Teigland 196b3b94faaSDavid Teigland static struct sysfs_ops gfs2_attr_ops = { 197b3b94faaSDavid Teigland .show = gfs2_attr_show, 198b3b94faaSDavid Teigland .store = gfs2_attr_store, 199b3b94faaSDavid Teigland }; 200b3b94faaSDavid Teigland 201b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 202b3b94faaSDavid Teigland .default_attrs = gfs2_attrs, 203b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 204b3b94faaSDavid Teigland }; 205b3b94faaSDavid Teigland 2069bec101aSGreg Kroah-Hartman static struct kset *gfs2_kset; 207b3b94faaSDavid Teigland 208b3b94faaSDavid Teigland /* 209b3b94faaSDavid Teigland * display struct lm_lockstruct fields 210b3b94faaSDavid Teigland */ 211b3b94faaSDavid Teigland 212b3b94faaSDavid Teigland struct lockstruct_attr { 213b3b94faaSDavid Teigland struct attribute attr; 214b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 215b3b94faaSDavid Teigland }; 216b3b94faaSDavid Teigland 217b3b94faaSDavid Teigland #define LOCKSTRUCT_ATTR(name, fmt) \ 218b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 219b3b94faaSDavid Teigland { \ 2203204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_lockstruct.ls_##name); \ 221b3b94faaSDavid Teigland } \ 222b3b94faaSDavid Teigland static struct lockstruct_attr lockstruct_attr_##name = __ATTR_RO(name) 223b3b94faaSDavid Teigland 224b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(jid, "%u\n"); 225b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(first, "%u\n"); 226b3b94faaSDavid Teigland 227b3b94faaSDavid Teigland static struct attribute *lockstruct_attrs[] = { 228b3b94faaSDavid Teigland &lockstruct_attr_jid.attr, 229b3b94faaSDavid Teigland &lockstruct_attr_first.attr, 230*f057f6cdSSteven Whitehouse NULL, 231*f057f6cdSSteven Whitehouse }; 232*f057f6cdSSteven Whitehouse 233*f057f6cdSSteven Whitehouse /* 234*f057f6cdSSteven Whitehouse * lock_module. Originally from lock_dlm 235*f057f6cdSSteven Whitehouse */ 236*f057f6cdSSteven Whitehouse 237*f057f6cdSSteven Whitehouse static ssize_t proto_name_show(struct gfs2_sbd *sdp, char *buf) 238*f057f6cdSSteven Whitehouse { 239*f057f6cdSSteven Whitehouse const struct lm_lockops *ops = sdp->sd_lockstruct.ls_ops; 240*f057f6cdSSteven Whitehouse return sprintf(buf, "%s\n", ops->lm_proto_name); 241*f057f6cdSSteven Whitehouse } 242*f057f6cdSSteven Whitehouse 243*f057f6cdSSteven Whitehouse static ssize_t block_show(struct gfs2_sbd *sdp, char *buf) 244*f057f6cdSSteven Whitehouse { 245*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 246*f057f6cdSSteven Whitehouse ssize_t ret; 247*f057f6cdSSteven Whitehouse int val = 0; 248*f057f6cdSSteven Whitehouse 249*f057f6cdSSteven Whitehouse if (test_bit(DFL_BLOCK_LOCKS, &ls->ls_flags)) 250*f057f6cdSSteven Whitehouse val = 1; 251*f057f6cdSSteven Whitehouse ret = sprintf(buf, "%d\n", val); 252*f057f6cdSSteven Whitehouse return ret; 253*f057f6cdSSteven Whitehouse } 254*f057f6cdSSteven Whitehouse 255*f057f6cdSSteven Whitehouse static ssize_t block_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 256*f057f6cdSSteven Whitehouse { 257*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 258*f057f6cdSSteven Whitehouse ssize_t ret = len; 259*f057f6cdSSteven Whitehouse int val; 260*f057f6cdSSteven Whitehouse 261*f057f6cdSSteven Whitehouse val = simple_strtol(buf, NULL, 0); 262*f057f6cdSSteven Whitehouse 263*f057f6cdSSteven Whitehouse if (val == 1) 264*f057f6cdSSteven Whitehouse set_bit(DFL_BLOCK_LOCKS, &ls->ls_flags); 265*f057f6cdSSteven Whitehouse else if (val == 0) { 266*f057f6cdSSteven Whitehouse clear_bit(DFL_BLOCK_LOCKS, &ls->ls_flags); 267*f057f6cdSSteven Whitehouse smp_mb__after_clear_bit(); 268*f057f6cdSSteven Whitehouse gfs2_glock_thaw(sdp); 269*f057f6cdSSteven Whitehouse } else { 270*f057f6cdSSteven Whitehouse ret = -EINVAL; 271*f057f6cdSSteven Whitehouse } 272*f057f6cdSSteven Whitehouse return ret; 273*f057f6cdSSteven Whitehouse } 274*f057f6cdSSteven Whitehouse 275*f057f6cdSSteven Whitehouse static ssize_t lkid_show(struct gfs2_sbd *sdp, char *buf) 276*f057f6cdSSteven Whitehouse { 277*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 278*f057f6cdSSteven Whitehouse return sprintf(buf, "%u\n", ls->ls_id); 279*f057f6cdSSteven Whitehouse } 280*f057f6cdSSteven Whitehouse 281*f057f6cdSSteven Whitehouse static ssize_t lkfirst_show(struct gfs2_sbd *sdp, char *buf) 282*f057f6cdSSteven Whitehouse { 283*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 284*f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first); 285*f057f6cdSSteven Whitehouse } 286*f057f6cdSSteven Whitehouse 287*f057f6cdSSteven Whitehouse static ssize_t first_done_show(struct gfs2_sbd *sdp, char *buf) 288*f057f6cdSSteven Whitehouse { 289*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 290*f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_first_done); 291*f057f6cdSSteven Whitehouse } 292*f057f6cdSSteven Whitehouse 293*f057f6cdSSteven Whitehouse static ssize_t recover_show(struct gfs2_sbd *sdp, char *buf) 294*f057f6cdSSteven Whitehouse { 295*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 296*f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid); 297*f057f6cdSSteven Whitehouse } 298*f057f6cdSSteven Whitehouse 299*f057f6cdSSteven Whitehouse static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid) 300*f057f6cdSSteven Whitehouse { 301*f057f6cdSSteven Whitehouse struct gfs2_jdesc *jd; 302*f057f6cdSSteven Whitehouse 303*f057f6cdSSteven Whitehouse spin_lock(&sdp->sd_jindex_spin); 304*f057f6cdSSteven Whitehouse list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) { 305*f057f6cdSSteven Whitehouse if (jd->jd_jid != jid) 306*f057f6cdSSteven Whitehouse continue; 307*f057f6cdSSteven Whitehouse jd->jd_dirty = 1; 308*f057f6cdSSteven Whitehouse break; 309*f057f6cdSSteven Whitehouse } 310*f057f6cdSSteven Whitehouse spin_unlock(&sdp->sd_jindex_spin); 311*f057f6cdSSteven Whitehouse } 312*f057f6cdSSteven Whitehouse 313*f057f6cdSSteven Whitehouse static ssize_t recover_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 314*f057f6cdSSteven Whitehouse { 315*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 316*f057f6cdSSteven Whitehouse ls->ls_recover_jid = simple_strtol(buf, NULL, 0); 317*f057f6cdSSteven Whitehouse gfs2_jdesc_make_dirty(sdp, ls->ls_recover_jid); 318*f057f6cdSSteven Whitehouse if (sdp->sd_recoverd_process) 319*f057f6cdSSteven Whitehouse wake_up_process(sdp->sd_recoverd_process); 320*f057f6cdSSteven Whitehouse return len; 321*f057f6cdSSteven Whitehouse } 322*f057f6cdSSteven Whitehouse 323*f057f6cdSSteven Whitehouse static ssize_t recover_done_show(struct gfs2_sbd *sdp, char *buf) 324*f057f6cdSSteven Whitehouse { 325*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 326*f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_done); 327*f057f6cdSSteven Whitehouse } 328*f057f6cdSSteven Whitehouse 329*f057f6cdSSteven Whitehouse static ssize_t recover_status_show(struct gfs2_sbd *sdp, char *buf) 330*f057f6cdSSteven Whitehouse { 331*f057f6cdSSteven Whitehouse struct lm_lockstruct *ls = &sdp->sd_lockstruct; 332*f057f6cdSSteven Whitehouse return sprintf(buf, "%d\n", ls->ls_recover_jid_status); 333*f057f6cdSSteven Whitehouse } 334*f057f6cdSSteven Whitehouse 335*f057f6cdSSteven Whitehouse struct gdlm_attr { 336*f057f6cdSSteven Whitehouse struct attribute attr; 337*f057f6cdSSteven Whitehouse ssize_t (*show)(struct gfs2_sbd *sdp, char *); 338*f057f6cdSSteven Whitehouse ssize_t (*store)(struct gfs2_sbd *sdp, const char *, size_t); 339*f057f6cdSSteven Whitehouse }; 340*f057f6cdSSteven Whitehouse 341*f057f6cdSSteven Whitehouse #define GDLM_ATTR(_name,_mode,_show,_store) \ 342*f057f6cdSSteven Whitehouse static struct gdlm_attr gdlm_attr_##_name = __ATTR(_name,_mode,_show,_store) 343*f057f6cdSSteven Whitehouse 344*f057f6cdSSteven Whitehouse GDLM_ATTR(proto_name, 0444, proto_name_show, NULL); 345*f057f6cdSSteven Whitehouse GDLM_ATTR(block, 0644, block_show, block_store); 346*f057f6cdSSteven Whitehouse GDLM_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 347*f057f6cdSSteven Whitehouse GDLM_ATTR(id, 0444, lkid_show, NULL); 348*f057f6cdSSteven Whitehouse GDLM_ATTR(first, 0444, lkfirst_show, NULL); 349*f057f6cdSSteven Whitehouse GDLM_ATTR(first_done, 0444, first_done_show, NULL); 350*f057f6cdSSteven Whitehouse GDLM_ATTR(recover, 0644, recover_show, recover_store); 351*f057f6cdSSteven Whitehouse GDLM_ATTR(recover_done, 0444, recover_done_show, NULL); 352*f057f6cdSSteven Whitehouse GDLM_ATTR(recover_status, 0444, recover_status_show, NULL); 353*f057f6cdSSteven Whitehouse 354*f057f6cdSSteven Whitehouse static struct attribute *lock_module_attrs[] = { 355*f057f6cdSSteven Whitehouse &gdlm_attr_proto_name.attr, 356*f057f6cdSSteven Whitehouse &gdlm_attr_block.attr, 357*f057f6cdSSteven Whitehouse &gdlm_attr_withdraw.attr, 358*f057f6cdSSteven Whitehouse &gdlm_attr_id.attr, 359*f057f6cdSSteven Whitehouse &lockstruct_attr_jid.attr, 360*f057f6cdSSteven Whitehouse &gdlm_attr_first.attr, 361*f057f6cdSSteven Whitehouse &gdlm_attr_first_done.attr, 362*f057f6cdSSteven Whitehouse &gdlm_attr_recover.attr, 363*f057f6cdSSteven Whitehouse &gdlm_attr_recover_done.attr, 364*f057f6cdSSteven Whitehouse &gdlm_attr_recover_status.attr, 365ea67eedbSSteven Whitehouse NULL, 366b3b94faaSDavid Teigland }; 367b3b94faaSDavid Teigland 368b3b94faaSDavid Teigland /* 369b3b94faaSDavid Teigland * display struct gfs2_args fields 370b3b94faaSDavid Teigland */ 371b3b94faaSDavid Teigland 372b3b94faaSDavid Teigland struct args_attr { 373b3b94faaSDavid Teigland struct attribute attr; 374b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 375b3b94faaSDavid Teigland }; 376b3b94faaSDavid Teigland 377b3b94faaSDavid Teigland #define ARGS_ATTR(name, fmt) \ 378b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 379b3b94faaSDavid Teigland { \ 3803204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_args.ar_##name); \ 381b3b94faaSDavid Teigland } \ 382b3b94faaSDavid Teigland static struct args_attr args_attr_##name = __ATTR_RO(name) 383b3b94faaSDavid Teigland 384b3b94faaSDavid Teigland ARGS_ATTR(lockproto, "%s\n"); 385b3b94faaSDavid Teigland ARGS_ATTR(locktable, "%s\n"); 386b3b94faaSDavid Teigland ARGS_ATTR(hostdata, "%s\n"); 387b3b94faaSDavid Teigland ARGS_ATTR(spectator, "%d\n"); 388b3b94faaSDavid Teigland ARGS_ATTR(ignore_local_fs, "%d\n"); 389b3b94faaSDavid Teigland ARGS_ATTR(localcaching, "%d\n"); 390b3b94faaSDavid Teigland ARGS_ATTR(localflocks, "%d\n"); 391b3b94faaSDavid Teigland ARGS_ATTR(debug, "%d\n"); 392b3b94faaSDavid Teigland ARGS_ATTR(upgrade, "%d\n"); 393b3b94faaSDavid Teigland ARGS_ATTR(posix_acl, "%d\n"); 394b3b94faaSDavid Teigland ARGS_ATTR(quota, "%u\n"); 395b3b94faaSDavid Teigland ARGS_ATTR(suiddir, "%d\n"); 396b3b94faaSDavid Teigland ARGS_ATTR(data, "%d\n"); 397b3b94faaSDavid Teigland 398b3b94faaSDavid Teigland static struct attribute *args_attrs[] = { 399b3b94faaSDavid Teigland &args_attr_lockproto.attr, 400b3b94faaSDavid Teigland &args_attr_locktable.attr, 401b3b94faaSDavid Teigland &args_attr_hostdata.attr, 402b3b94faaSDavid Teigland &args_attr_spectator.attr, 403b3b94faaSDavid Teigland &args_attr_ignore_local_fs.attr, 404b3b94faaSDavid Teigland &args_attr_localcaching.attr, 405b3b94faaSDavid Teigland &args_attr_localflocks.attr, 406b3b94faaSDavid Teigland &args_attr_debug.attr, 407b3b94faaSDavid Teigland &args_attr_upgrade.attr, 408b3b94faaSDavid Teigland &args_attr_posix_acl.attr, 409b3b94faaSDavid Teigland &args_attr_quota.attr, 410b3b94faaSDavid Teigland &args_attr_suiddir.attr, 411b3b94faaSDavid Teigland &args_attr_data.attr, 412ea67eedbSSteven Whitehouse NULL, 413b3b94faaSDavid Teigland }; 414b3b94faaSDavid Teigland 415b3b94faaSDavid Teigland /* 416b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 417b3b94faaSDavid Teigland */ 418b3b94faaSDavid Teigland 419b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 420b3b94faaSDavid Teigland { 4213204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 4223204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 423b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 424b3b94faaSDavid Teigland } 425b3b94faaSDavid Teigland 426b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 427b3b94faaSDavid Teigland size_t len) 428b3b94faaSDavid Teigland { 429b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 430b3b94faaSDavid Teigland unsigned int x, y; 431b3b94faaSDavid Teigland 432b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 433b3b94faaSDavid Teigland return -EACCES; 434b3b94faaSDavid Teigland 435b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 436b3b94faaSDavid Teigland return -EINVAL; 437b3b94faaSDavid Teigland 438b3b94faaSDavid Teigland spin_lock(>->gt_spin); 439b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 440b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 441b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 442b3b94faaSDavid Teigland return len; 443b3b94faaSDavid Teigland } 444b3b94faaSDavid Teigland 445b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 446b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 447b3b94faaSDavid Teigland { 448b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 449b3b94faaSDavid Teigland unsigned int x; 450b3b94faaSDavid Teigland 451b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 452b3b94faaSDavid Teigland return -EACCES; 453b3b94faaSDavid Teigland 454b3b94faaSDavid Teigland x = simple_strtoul(buf, NULL, 0); 455b3b94faaSDavid Teigland 456b3b94faaSDavid Teigland if (check_zero && !x) 457b3b94faaSDavid Teigland return -EINVAL; 458b3b94faaSDavid Teigland 459b3b94faaSDavid Teigland spin_lock(>->gt_spin); 460b3b94faaSDavid Teigland *field = x; 461b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 462b3b94faaSDavid Teigland return len; 463b3b94faaSDavid Teigland } 464b3b94faaSDavid Teigland 465b3b94faaSDavid Teigland struct tune_attr { 466b3b94faaSDavid Teigland struct attribute attr; 467b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 468b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 469b3b94faaSDavid Teigland }; 470b3b94faaSDavid Teigland 471b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 472b3b94faaSDavid Teigland static struct tune_attr tune_attr_##name = __ATTR(name, 0644, show, store) 473b3b94faaSDavid Teigland 474b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 475b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 476b3b94faaSDavid Teigland { \ 4773204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 478b3b94faaSDavid Teigland } \ 479b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 480b3b94faaSDavid Teigland 481b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 482b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 483b3b94faaSDavid Teigland { \ 484b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 485b3b94faaSDavid Teigland } \ 486b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 487b3b94faaSDavid Teigland 488b3b94faaSDavid Teigland #define TUNE_ATTR_DAEMON(name, process) \ 489b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 490b3b94faaSDavid Teigland { \ 491b3b94faaSDavid Teigland ssize_t r = tune_set(sdp, &sdp->sd_tune.gt_##name, 1, buf, len); \ 492b3b94faaSDavid Teigland wake_up_process(sdp->sd_##process); \ 493b3b94faaSDavid Teigland return r; \ 494b3b94faaSDavid Teigland } \ 495b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 496b3b94faaSDavid Teigland 497b3b94faaSDavid Teigland TUNE_ATTR(incore_log_blocks, 0); 498b3b94faaSDavid Teigland TUNE_ATTR(log_flush_secs, 0); 499b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 500b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 501b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 502b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 503b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 504b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 505b3b94faaSDavid Teigland TUNE_ATTR(quota_simul_sync, 1); 506b3b94faaSDavid Teigland TUNE_ATTR(stall_secs, 1); 507b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 508b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process); 509b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(logd_secs, logd_process); 510b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 511b3b94faaSDavid Teigland 512b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 513b3b94faaSDavid Teigland &tune_attr_incore_log_blocks.attr, 514b3b94faaSDavid Teigland &tune_attr_log_flush_secs.attr, 515b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 516b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 517b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 518b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 519b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 520b3b94faaSDavid Teigland &tune_attr_quota_simul_sync.attr, 521b3b94faaSDavid Teigland &tune_attr_stall_secs.attr, 522b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 523b3b94faaSDavid Teigland &tune_attr_recoverd_secs.attr, 524b3b94faaSDavid Teigland &tune_attr_logd_secs.attr, 525b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 526b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 527ea67eedbSSteven Whitehouse NULL, 528b3b94faaSDavid Teigland }; 529b3b94faaSDavid Teigland 530b3b94faaSDavid Teigland static struct attribute_group lockstruct_group = { 531b3b94faaSDavid Teigland .name = "lockstruct", 532ea67eedbSSteven Whitehouse .attrs = lockstruct_attrs, 533b3b94faaSDavid Teigland }; 534b3b94faaSDavid Teigland 535b3b94faaSDavid Teigland static struct attribute_group args_group = { 536b3b94faaSDavid Teigland .name = "args", 537ea67eedbSSteven Whitehouse .attrs = args_attrs, 538b3b94faaSDavid Teigland }; 539b3b94faaSDavid Teigland 540b3b94faaSDavid Teigland static struct attribute_group tune_group = { 541b3b94faaSDavid Teigland .name = "tune", 542ea67eedbSSteven Whitehouse .attrs = tune_attrs, 543b3b94faaSDavid Teigland }; 544b3b94faaSDavid Teigland 545*f057f6cdSSteven Whitehouse static struct attribute_group lock_module_group = { 546*f057f6cdSSteven Whitehouse .name = "lock_module", 547*f057f6cdSSteven Whitehouse .attrs = lock_module_attrs, 548*f057f6cdSSteven Whitehouse }; 549*f057f6cdSSteven Whitehouse 550b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 551b3b94faaSDavid Teigland { 552b3b94faaSDavid Teigland int error; 553b3b94faaSDavid Teigland 5549bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 555901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 556901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 557b3b94faaSDavid Teigland if (error) 558b3b94faaSDavid Teigland goto fail; 559b3b94faaSDavid Teigland 560b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group); 561b3b94faaSDavid Teigland if (error) 562b3b94faaSDavid Teigland goto fail_reg; 563b3b94faaSDavid Teigland 564b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &args_group); 565b3b94faaSDavid Teigland if (error) 56697cc1025SSteven Whitehouse goto fail_lockstruct; 567b3b94faaSDavid Teigland 568b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 569b3b94faaSDavid Teigland if (error) 570b3b94faaSDavid Teigland goto fail_args; 571b3b94faaSDavid Teigland 572*f057f6cdSSteven Whitehouse error = sysfs_create_group(&sdp->sd_kobj, &lock_module_group); 573*f057f6cdSSteven Whitehouse if (error) 574*f057f6cdSSteven Whitehouse goto fail_tune; 575*f057f6cdSSteven Whitehouse 576901195edSGreg Kroah-Hartman kobject_uevent(&sdp->sd_kobj, KOBJ_ADD); 577b3b94faaSDavid Teigland return 0; 578b3b94faaSDavid Teigland 579*f057f6cdSSteven Whitehouse fail_tune: 580*f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &tune_group); 581b3b94faaSDavid Teigland fail_args: 582b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 583b3b94faaSDavid Teigland fail_lockstruct: 584b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 585b3b94faaSDavid Teigland fail_reg: 586197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 587b3b94faaSDavid Teigland fail: 58865952fb4SDavid Teigland fs_err(sdp, "error %d adding sysfs files", error); 589b3b94faaSDavid Teigland return error; 590b3b94faaSDavid Teigland } 591b3b94faaSDavid Teigland 592b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 593b3b94faaSDavid Teigland { 594b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 595b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 596b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 597*f057f6cdSSteven Whitehouse sysfs_remove_group(&sdp->sd_kobj, &lock_module_group); 598197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 599b3b94faaSDavid Teigland } 600b3b94faaSDavid Teigland 601fdd1062eSSteven Whitehouse static int gfs2_uevent(struct kset *kset, struct kobject *kobj, 602fdd1062eSSteven Whitehouse struct kobj_uevent_env *env) 603fdd1062eSSteven Whitehouse { 604fdd1062eSSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 605fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 606fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 607fdd1062eSSteven Whitehouse return 0; 608fdd1062eSSteven Whitehouse } 609fdd1062eSSteven Whitehouse 610fdd1062eSSteven Whitehouse static struct kset_uevent_ops gfs2_uevent_ops = { 611fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 612fdd1062eSSteven Whitehouse }; 613fdd1062eSSteven Whitehouse 614fdd1062eSSteven Whitehouse 615b3b94faaSDavid Teigland int gfs2_sys_init(void) 616b3b94faaSDavid Teigland { 617fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 6189bec101aSGreg Kroah-Hartman if (!gfs2_kset) 6199bec101aSGreg Kroah-Hartman return -ENOMEM; 6209bec101aSGreg Kroah-Hartman return 0; 621b3b94faaSDavid Teigland } 622b3b94faaSDavid Teigland 623b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 624b3b94faaSDavid Teigland { 6259bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 626b3b94faaSDavid Teigland } 627b3b94faaSDavid Teigland 628