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> 175c676f6dSSteven Whitehouse #include <linux/gfs2_ondisk.h> 187d308590SFabio Massimo Di Nitto #include <linux/lm_interface.h> 19b3b94faaSDavid Teigland #include <asm/uaccess.h> 20b3b94faaSDavid Teigland 21b3b94faaSDavid Teigland #include "gfs2.h" 225c676f6dSSteven Whitehouse #include "incore.h" 23b3b94faaSDavid Teigland #include "sys.h" 24b3b94faaSDavid Teigland #include "super.h" 25b3b94faaSDavid Teigland #include "glock.h" 26b3b94faaSDavid Teigland #include "quota.h" 275c676f6dSSteven Whitehouse #include "util.h" 28b3b94faaSDavid Teigland 29b3b94faaSDavid Teigland char *gfs2_sys_margs; 30b3b94faaSDavid Teigland spinlock_t gfs2_sys_margs_lock; 31b3b94faaSDavid Teigland 32b3b94faaSDavid Teigland static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) 33b3b94faaSDavid Teigland { 34c7227e46SBob Peterson return snprintf(buf, PAGE_SIZE, "%u:%u\n", 35c7227e46SBob Peterson MAJOR(sdp->sd_vfs->s_dev), MINOR(sdp->sd_vfs->s_dev)); 36b3b94faaSDavid Teigland } 37b3b94faaSDavid Teigland 38b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 39b3b94faaSDavid Teigland { 403204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%s\n", sdp->sd_fsname); 41b3b94faaSDavid Teigland } 42b3b94faaSDavid Teigland 43b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 44b3b94faaSDavid Teigland { 45b3b94faaSDavid Teigland unsigned int count; 46b3b94faaSDavid Teigland 47f55ab26aSSteven Whitehouse mutex_lock(&sdp->sd_freeze_lock); 48b3b94faaSDavid Teigland count = sdp->sd_freeze_count; 49f55ab26aSSteven Whitehouse mutex_unlock(&sdp->sd_freeze_lock); 50b3b94faaSDavid Teigland 513204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", count); 52b3b94faaSDavid Teigland } 53b3b94faaSDavid Teigland 54b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 55b3b94faaSDavid Teigland { 56b3b94faaSDavid Teigland ssize_t ret = len; 57b3b94faaSDavid Teigland int error = 0; 58b3b94faaSDavid Teigland int n = simple_strtol(buf, NULL, 0); 59b3b94faaSDavid Teigland 60b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 61b3b94faaSDavid Teigland return -EACCES; 62b3b94faaSDavid Teigland 63b3b94faaSDavid Teigland switch (n) { 64b3b94faaSDavid Teigland case 0: 65b3b94faaSDavid Teigland gfs2_unfreeze_fs(sdp); 66b3b94faaSDavid Teigland break; 67b3b94faaSDavid Teigland case 1: 68b3b94faaSDavid Teigland error = gfs2_freeze_fs(sdp); 69b3b94faaSDavid Teigland break; 70b3b94faaSDavid Teigland default: 71b3b94faaSDavid Teigland ret = -EINVAL; 72b3b94faaSDavid Teigland } 73b3b94faaSDavid Teigland 74b3b94faaSDavid Teigland if (error) 75b3b94faaSDavid Teigland fs_warn(sdp, "freeze %d error %d", n, error); 76b3b94faaSDavid Teigland 77b3b94faaSDavid Teigland return ret; 78b3b94faaSDavid Teigland } 79b3b94faaSDavid Teigland 80b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 81b3b94faaSDavid Teigland { 82b3b94faaSDavid Teigland unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags); 833204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", b); 84b3b94faaSDavid Teigland } 85b3b94faaSDavid Teigland 86b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 87b3b94faaSDavid Teigland { 88b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 89b3b94faaSDavid Teigland return -EACCES; 90b3b94faaSDavid Teigland 91b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 92b3b94faaSDavid Teigland return -EINVAL; 93b3b94faaSDavid Teigland 94b3b94faaSDavid Teigland gfs2_lm_withdraw(sdp, 95b3b94faaSDavid Teigland "GFS2: fsid=%s: withdrawing from cluster at user's request\n", 96b3b94faaSDavid Teigland sdp->sd_fsname); 97b3b94faaSDavid Teigland return len; 98b3b94faaSDavid Teigland } 99b3b94faaSDavid Teigland 100b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 101b3b94faaSDavid Teigland size_t len) 102b3b94faaSDavid Teigland { 103b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 104b3b94faaSDavid Teigland return -EACCES; 105b3b94faaSDavid Teigland 106b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 107b3b94faaSDavid Teigland return -EINVAL; 108b3b94faaSDavid Teigland 109b3b94faaSDavid Teigland gfs2_statfs_sync(sdp); 110b3b94faaSDavid Teigland return len; 111b3b94faaSDavid Teigland } 112b3b94faaSDavid Teigland 113b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 114b3b94faaSDavid Teigland size_t len) 115b3b94faaSDavid Teigland { 116b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 117b3b94faaSDavid Teigland return -EACCES; 118b3b94faaSDavid Teigland 119b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 120b3b94faaSDavid Teigland return -EINVAL; 121b3b94faaSDavid Teigland 122b3b94faaSDavid Teigland gfs2_quota_sync(sdp); 123b3b94faaSDavid Teigland return len; 124b3b94faaSDavid Teigland } 125b3b94faaSDavid Teigland 126b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 127b3b94faaSDavid Teigland size_t len) 128b3b94faaSDavid Teigland { 129cd915493SSteven Whitehouse u32 id; 130b3b94faaSDavid Teigland 131b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 132b3b94faaSDavid Teigland return -EACCES; 133b3b94faaSDavid Teigland 134b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 135b3b94faaSDavid Teigland 136b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 1, id); 137b3b94faaSDavid Teigland return len; 138b3b94faaSDavid Teigland } 139b3b94faaSDavid Teigland 140b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 141b3b94faaSDavid Teigland size_t len) 142b3b94faaSDavid Teigland { 143cd915493SSteven Whitehouse u32 id; 144b3b94faaSDavid Teigland 145b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 146b3b94faaSDavid Teigland return -EACCES; 147b3b94faaSDavid Teigland 148b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 149b3b94faaSDavid Teigland 150b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 0, id); 151b3b94faaSDavid Teigland return len; 152b3b94faaSDavid Teigland } 153b3b94faaSDavid Teigland 154b3b94faaSDavid Teigland struct gfs2_attr { 155b3b94faaSDavid Teigland struct attribute attr; 156b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 157b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 158b3b94faaSDavid Teigland }; 159b3b94faaSDavid Teigland 160b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 161b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 162b3b94faaSDavid Teigland 163b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 164b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 165b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 166b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 167b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 168b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 169b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 170b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 171b3b94faaSDavid Teigland 172b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 173b3b94faaSDavid Teigland &gfs2_attr_id.attr, 174b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 175b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 176b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 177b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 178b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 179b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 180b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 181b3b94faaSDavid Teigland NULL, 182b3b94faaSDavid Teigland }; 183b3b94faaSDavid Teigland 184b3b94faaSDavid Teigland static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, 185b3b94faaSDavid Teigland char *buf) 186b3b94faaSDavid Teigland { 187b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 188b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 189b3b94faaSDavid Teigland return a->show ? a->show(sdp, buf) : 0; 190b3b94faaSDavid Teigland } 191b3b94faaSDavid Teigland 192b3b94faaSDavid Teigland static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, 193b3b94faaSDavid Teigland const char *buf, size_t len) 194b3b94faaSDavid Teigland { 195b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 196b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 197b3b94faaSDavid Teigland return a->store ? a->store(sdp, buf, len) : len; 198b3b94faaSDavid Teigland } 199b3b94faaSDavid Teigland 200b3b94faaSDavid Teigland static struct sysfs_ops gfs2_attr_ops = { 201b3b94faaSDavid Teigland .show = gfs2_attr_show, 202b3b94faaSDavid Teigland .store = gfs2_attr_store, 203b3b94faaSDavid Teigland }; 204b3b94faaSDavid Teigland 205b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 206b3b94faaSDavid Teigland .default_attrs = gfs2_attrs, 207b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 208b3b94faaSDavid Teigland }; 209b3b94faaSDavid Teigland 2109bec101aSGreg Kroah-Hartman static struct kset *gfs2_kset; 211b3b94faaSDavid Teigland 212b3b94faaSDavid Teigland /* 213b3b94faaSDavid Teigland * display struct lm_lockstruct fields 214b3b94faaSDavid Teigland */ 215b3b94faaSDavid Teigland 216b3b94faaSDavid Teigland struct lockstruct_attr { 217b3b94faaSDavid Teigland struct attribute attr; 218b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 219b3b94faaSDavid Teigland }; 220b3b94faaSDavid Teigland 221b3b94faaSDavid Teigland #define LOCKSTRUCT_ATTR(name, fmt) \ 222b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 223b3b94faaSDavid Teigland { \ 2243204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_lockstruct.ls_##name); \ 225b3b94faaSDavid Teigland } \ 226b3b94faaSDavid Teigland static struct lockstruct_attr lockstruct_attr_##name = __ATTR_RO(name) 227b3b94faaSDavid Teigland 228b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(jid, "%u\n"); 229b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(first, "%u\n"); 230b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(lvb_size, "%u\n"); 231b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(flags, "%d\n"); 232b3b94faaSDavid Teigland 233b3b94faaSDavid Teigland static struct attribute *lockstruct_attrs[] = { 234b3b94faaSDavid Teigland &lockstruct_attr_jid.attr, 235b3b94faaSDavid Teigland &lockstruct_attr_first.attr, 236b3b94faaSDavid Teigland &lockstruct_attr_lvb_size.attr, 237b3b94faaSDavid Teigland &lockstruct_attr_flags.attr, 238ea67eedbSSteven Whitehouse NULL, 239b3b94faaSDavid Teigland }; 240b3b94faaSDavid Teigland 241b3b94faaSDavid Teigland /* 242b3b94faaSDavid Teigland * display struct gfs2_args fields 243b3b94faaSDavid Teigland */ 244b3b94faaSDavid Teigland 245b3b94faaSDavid Teigland struct args_attr { 246b3b94faaSDavid Teigland struct attribute attr; 247b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 248b3b94faaSDavid Teigland }; 249b3b94faaSDavid Teigland 250b3b94faaSDavid Teigland #define ARGS_ATTR(name, fmt) \ 251b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 252b3b94faaSDavid Teigland { \ 2533204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, fmt, sdp->sd_args.ar_##name); \ 254b3b94faaSDavid Teigland } \ 255b3b94faaSDavid Teigland static struct args_attr args_attr_##name = __ATTR_RO(name) 256b3b94faaSDavid Teigland 257b3b94faaSDavid Teigland ARGS_ATTR(lockproto, "%s\n"); 258b3b94faaSDavid Teigland ARGS_ATTR(locktable, "%s\n"); 259b3b94faaSDavid Teigland ARGS_ATTR(hostdata, "%s\n"); 260b3b94faaSDavid Teigland ARGS_ATTR(spectator, "%d\n"); 261b3b94faaSDavid Teigland ARGS_ATTR(ignore_local_fs, "%d\n"); 262b3b94faaSDavid Teigland ARGS_ATTR(localcaching, "%d\n"); 263b3b94faaSDavid Teigland ARGS_ATTR(localflocks, "%d\n"); 264b3b94faaSDavid Teigland ARGS_ATTR(debug, "%d\n"); 265b3b94faaSDavid Teigland ARGS_ATTR(upgrade, "%d\n"); 266b3b94faaSDavid Teigland ARGS_ATTR(posix_acl, "%d\n"); 267b3b94faaSDavid Teigland ARGS_ATTR(quota, "%u\n"); 268b3b94faaSDavid Teigland ARGS_ATTR(suiddir, "%d\n"); 269b3b94faaSDavid Teigland ARGS_ATTR(data, "%d\n"); 270b3b94faaSDavid Teigland 271b3b94faaSDavid Teigland static struct attribute *args_attrs[] = { 272b3b94faaSDavid Teigland &args_attr_lockproto.attr, 273b3b94faaSDavid Teigland &args_attr_locktable.attr, 274b3b94faaSDavid Teigland &args_attr_hostdata.attr, 275b3b94faaSDavid Teigland &args_attr_spectator.attr, 276b3b94faaSDavid Teigland &args_attr_ignore_local_fs.attr, 277b3b94faaSDavid Teigland &args_attr_localcaching.attr, 278b3b94faaSDavid Teigland &args_attr_localflocks.attr, 279b3b94faaSDavid Teigland &args_attr_debug.attr, 280b3b94faaSDavid Teigland &args_attr_upgrade.attr, 281b3b94faaSDavid Teigland &args_attr_posix_acl.attr, 282b3b94faaSDavid Teigland &args_attr_quota.attr, 283b3b94faaSDavid Teigland &args_attr_suiddir.attr, 284b3b94faaSDavid Teigland &args_attr_data.attr, 285ea67eedbSSteven Whitehouse NULL, 286b3b94faaSDavid Teigland }; 287b3b94faaSDavid Teigland 288b3b94faaSDavid Teigland /* 289b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 290b3b94faaSDavid Teigland */ 291b3b94faaSDavid Teigland 292b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 293b3b94faaSDavid Teigland { 2943204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u %u\n", 2953204a6c0SDavid Teigland sdp->sd_tune.gt_quota_scale_num, 296b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 297b3b94faaSDavid Teigland } 298b3b94faaSDavid Teigland 299b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 300b3b94faaSDavid Teigland size_t len) 301b3b94faaSDavid Teigland { 302b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 303b3b94faaSDavid Teigland unsigned int x, y; 304b3b94faaSDavid Teigland 305b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 306b3b94faaSDavid Teigland return -EACCES; 307b3b94faaSDavid Teigland 308b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 309b3b94faaSDavid Teigland return -EINVAL; 310b3b94faaSDavid Teigland 311b3b94faaSDavid Teigland spin_lock(>->gt_spin); 312b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 313b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 314b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 315b3b94faaSDavid Teigland return len; 316b3b94faaSDavid Teigland } 317b3b94faaSDavid Teigland 318b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 319b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 320b3b94faaSDavid Teigland { 321b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 322b3b94faaSDavid Teigland unsigned int x; 323b3b94faaSDavid Teigland 324b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 325b3b94faaSDavid Teigland return -EACCES; 326b3b94faaSDavid Teigland 327b3b94faaSDavid Teigland x = simple_strtoul(buf, NULL, 0); 328b3b94faaSDavid Teigland 329b3b94faaSDavid Teigland if (check_zero && !x) 330b3b94faaSDavid Teigland return -EINVAL; 331b3b94faaSDavid Teigland 332b3b94faaSDavid Teigland spin_lock(>->gt_spin); 333b3b94faaSDavid Teigland *field = x; 334b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 335b3b94faaSDavid Teigland return len; 336b3b94faaSDavid Teigland } 337b3b94faaSDavid Teigland 338b3b94faaSDavid Teigland struct tune_attr { 339b3b94faaSDavid Teigland struct attribute attr; 340b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 341b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 342b3b94faaSDavid Teigland }; 343b3b94faaSDavid Teigland 344b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 345b3b94faaSDavid Teigland static struct tune_attr tune_attr_##name = __ATTR(name, 0644, show, store) 346b3b94faaSDavid Teigland 347b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 348b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 349b3b94faaSDavid Teigland { \ 3503204a6c0SDavid Teigland return snprintf(buf, PAGE_SIZE, "%u\n", sdp->sd_tune.gt_##name); \ 351b3b94faaSDavid Teigland } \ 352b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 353b3b94faaSDavid Teigland 354b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 355b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 356b3b94faaSDavid Teigland { \ 357b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 358b3b94faaSDavid Teigland } \ 359b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 360b3b94faaSDavid Teigland 361b3b94faaSDavid Teigland #define TUNE_ATTR_DAEMON(name, process) \ 362b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 363b3b94faaSDavid Teigland { \ 364b3b94faaSDavid Teigland ssize_t r = tune_set(sdp, &sdp->sd_tune.gt_##name, 1, buf, len); \ 365b3b94faaSDavid Teigland wake_up_process(sdp->sd_##process); \ 366b3b94faaSDavid Teigland return r; \ 367b3b94faaSDavid Teigland } \ 368b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 369b3b94faaSDavid Teigland 370b3b94faaSDavid Teigland TUNE_ATTR(incore_log_blocks, 0); 371b3b94faaSDavid Teigland TUNE_ATTR(log_flush_secs, 0); 372b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 373b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 374b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 375b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 376b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 377b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 378b3b94faaSDavid Teigland TUNE_ATTR(quota_simul_sync, 1); 379b3b94faaSDavid Teigland TUNE_ATTR(quota_cache_secs, 1); 380b3b94faaSDavid Teigland TUNE_ATTR(stall_secs, 1); 381b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 382b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process); 383b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(logd_secs, logd_process); 384b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 385b3b94faaSDavid Teigland 386b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 387b3b94faaSDavid Teigland &tune_attr_incore_log_blocks.attr, 388b3b94faaSDavid Teigland &tune_attr_log_flush_secs.attr, 389b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 390b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 391b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 392b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 393b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 394b3b94faaSDavid Teigland &tune_attr_quota_simul_sync.attr, 395b3b94faaSDavid Teigland &tune_attr_quota_cache_secs.attr, 396b3b94faaSDavid Teigland &tune_attr_stall_secs.attr, 397b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 398b3b94faaSDavid Teigland &tune_attr_recoverd_secs.attr, 399b3b94faaSDavid Teigland &tune_attr_logd_secs.attr, 400b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 401b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 402ea67eedbSSteven Whitehouse NULL, 403b3b94faaSDavid Teigland }; 404b3b94faaSDavid Teigland 405b3b94faaSDavid Teigland static struct attribute_group lockstruct_group = { 406b3b94faaSDavid Teigland .name = "lockstruct", 407ea67eedbSSteven Whitehouse .attrs = lockstruct_attrs, 408b3b94faaSDavid Teigland }; 409b3b94faaSDavid Teigland 410b3b94faaSDavid Teigland static struct attribute_group args_group = { 411b3b94faaSDavid Teigland .name = "args", 412ea67eedbSSteven Whitehouse .attrs = args_attrs, 413b3b94faaSDavid Teigland }; 414b3b94faaSDavid Teigland 415b3b94faaSDavid Teigland static struct attribute_group tune_group = { 416b3b94faaSDavid Teigland .name = "tune", 417ea67eedbSSteven Whitehouse .attrs = tune_attrs, 418b3b94faaSDavid Teigland }; 419b3b94faaSDavid Teigland 420b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 421b3b94faaSDavid Teigland { 422b3b94faaSDavid Teigland int error; 423b3b94faaSDavid Teigland 4249bec101aSGreg Kroah-Hartman sdp->sd_kobj.kset = gfs2_kset; 425901195edSGreg Kroah-Hartman error = kobject_init_and_add(&sdp->sd_kobj, &gfs2_ktype, NULL, 426901195edSGreg Kroah-Hartman "%s", sdp->sd_table_name); 427b3b94faaSDavid Teigland if (error) 428b3b94faaSDavid Teigland goto fail; 429b3b94faaSDavid Teigland 430b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group); 431b3b94faaSDavid Teigland if (error) 432b3b94faaSDavid Teigland goto fail_reg; 433b3b94faaSDavid Teigland 434b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &args_group); 435b3b94faaSDavid Teigland if (error) 43697cc1025SSteven Whitehouse goto fail_lockstruct; 437b3b94faaSDavid Teigland 438b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 439b3b94faaSDavid Teigland if (error) 440b3b94faaSDavid Teigland goto fail_args; 441b3b94faaSDavid Teigland 442901195edSGreg Kroah-Hartman kobject_uevent(&sdp->sd_kobj, KOBJ_ADD); 443b3b94faaSDavid Teigland return 0; 444b3b94faaSDavid Teigland 445b3b94faaSDavid Teigland fail_args: 446b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 447b3b94faaSDavid Teigland fail_lockstruct: 448b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 449b3b94faaSDavid Teigland fail_reg: 450197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 451b3b94faaSDavid Teigland fail: 45265952fb4SDavid Teigland fs_err(sdp, "error %d adding sysfs files", error); 453b3b94faaSDavid Teigland return error; 454b3b94faaSDavid Teigland } 455b3b94faaSDavid Teigland 456b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 457b3b94faaSDavid Teigland { 458b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 459b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 460b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 461197b12d6SGreg Kroah-Hartman kobject_put(&sdp->sd_kobj); 462b3b94faaSDavid Teigland } 463b3b94faaSDavid Teigland 464*fdd1062eSSteven Whitehouse static int gfs2_uevent(struct kset *kset, struct kobject *kobj, 465*fdd1062eSSteven Whitehouse struct kobj_uevent_env *env) 466*fdd1062eSSteven Whitehouse { 467*fdd1062eSSteven Whitehouse struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 468*fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name); 469*fdd1062eSSteven Whitehouse add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name); 470*fdd1062eSSteven Whitehouse return 0; 471*fdd1062eSSteven Whitehouse } 472*fdd1062eSSteven Whitehouse 473*fdd1062eSSteven Whitehouse static struct kset_uevent_ops gfs2_uevent_ops = { 474*fdd1062eSSteven Whitehouse .uevent = gfs2_uevent, 475*fdd1062eSSteven Whitehouse }; 476*fdd1062eSSteven Whitehouse 477*fdd1062eSSteven Whitehouse 478b3b94faaSDavid Teigland int gfs2_sys_init(void) 479b3b94faaSDavid Teigland { 480b3b94faaSDavid Teigland gfs2_sys_margs = NULL; 481b3b94faaSDavid Teigland spin_lock_init(&gfs2_sys_margs_lock); 482*fdd1062eSSteven Whitehouse gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj); 4839bec101aSGreg Kroah-Hartman if (!gfs2_kset) 4849bec101aSGreg Kroah-Hartman return -ENOMEM; 4859bec101aSGreg Kroah-Hartman return 0; 486b3b94faaSDavid Teigland } 487b3b94faaSDavid Teigland 488b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 489b3b94faaSDavid Teigland { 490b3b94faaSDavid Teigland kfree(gfs2_sys_margs); 4919bec101aSGreg Kroah-Hartman kset_unregister(gfs2_kset); 492b3b94faaSDavid Teigland } 493b3b94faaSDavid Teigland 494