1*b3b94faaSDavid Teigland /* 2*b3b94faaSDavid Teigland * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3*b3b94faaSDavid Teigland * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. 4*b3b94faaSDavid Teigland * 5*b3b94faaSDavid Teigland * This copyrighted material is made available to anyone wishing to use, 6*b3b94faaSDavid Teigland * modify, copy, or redistribute it subject to the terms and conditions 7*b3b94faaSDavid Teigland * of the GNU General Public License v.2. 8*b3b94faaSDavid Teigland */ 9*b3b94faaSDavid Teigland 10*b3b94faaSDavid Teigland #include <linux/sched.h> 11*b3b94faaSDavid Teigland #include <linux/slab.h> 12*b3b94faaSDavid Teigland #include <linux/spinlock.h> 13*b3b94faaSDavid Teigland #include <linux/completion.h> 14*b3b94faaSDavid Teigland #include <linux/buffer_head.h> 15*b3b94faaSDavid Teigland #include <linux/module.h> 16*b3b94faaSDavid Teigland #include <linux/kobject.h> 17*b3b94faaSDavid Teigland #include <asm/semaphore.h> 18*b3b94faaSDavid Teigland #include <asm/uaccess.h> 19*b3b94faaSDavid Teigland 20*b3b94faaSDavid Teigland #include "gfs2.h" 21*b3b94faaSDavid Teigland #include "lm.h" 22*b3b94faaSDavid Teigland #include "sys.h" 23*b3b94faaSDavid Teigland #include "super.h" 24*b3b94faaSDavid Teigland #include "glock.h" 25*b3b94faaSDavid Teigland #include "quota.h" 26*b3b94faaSDavid Teigland 27*b3b94faaSDavid Teigland char *gfs2_sys_margs; 28*b3b94faaSDavid Teigland spinlock_t gfs2_sys_margs_lock; 29*b3b94faaSDavid Teigland 30*b3b94faaSDavid Teigland static ssize_t id_show(struct gfs2_sbd *sdp, char *buf) 31*b3b94faaSDavid Teigland { 32*b3b94faaSDavid Teigland return sprintf(buf, "%s\n", sdp->sd_vfs->s_id); 33*b3b94faaSDavid Teigland } 34*b3b94faaSDavid Teigland 35*b3b94faaSDavid Teigland static ssize_t fsname_show(struct gfs2_sbd *sdp, char *buf) 36*b3b94faaSDavid Teigland { 37*b3b94faaSDavid Teigland return sprintf(buf, "%s\n", sdp->sd_fsname); 38*b3b94faaSDavid Teigland } 39*b3b94faaSDavid Teigland 40*b3b94faaSDavid Teigland static ssize_t freeze_show(struct gfs2_sbd *sdp, char *buf) 41*b3b94faaSDavid Teigland { 42*b3b94faaSDavid Teigland unsigned int count; 43*b3b94faaSDavid Teigland 44*b3b94faaSDavid Teigland down(&sdp->sd_freeze_lock); 45*b3b94faaSDavid Teigland count = sdp->sd_freeze_count; 46*b3b94faaSDavid Teigland up(&sdp->sd_freeze_lock); 47*b3b94faaSDavid Teigland 48*b3b94faaSDavid Teigland return sprintf(buf, "%u\n", count); 49*b3b94faaSDavid Teigland } 50*b3b94faaSDavid Teigland 51*b3b94faaSDavid Teigland static ssize_t freeze_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 52*b3b94faaSDavid Teigland { 53*b3b94faaSDavid Teigland ssize_t ret = len; 54*b3b94faaSDavid Teigland int error = 0; 55*b3b94faaSDavid Teigland int n = simple_strtol(buf, NULL, 0); 56*b3b94faaSDavid Teigland 57*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 58*b3b94faaSDavid Teigland return -EACCES; 59*b3b94faaSDavid Teigland 60*b3b94faaSDavid Teigland switch (n) { 61*b3b94faaSDavid Teigland case 0: 62*b3b94faaSDavid Teigland gfs2_unfreeze_fs(sdp); 63*b3b94faaSDavid Teigland break; 64*b3b94faaSDavid Teigland case 1: 65*b3b94faaSDavid Teigland error = gfs2_freeze_fs(sdp); 66*b3b94faaSDavid Teigland break; 67*b3b94faaSDavid Teigland default: 68*b3b94faaSDavid Teigland ret = -EINVAL; 69*b3b94faaSDavid Teigland } 70*b3b94faaSDavid Teigland 71*b3b94faaSDavid Teigland if (error) 72*b3b94faaSDavid Teigland fs_warn(sdp, "freeze %d error %d", n, error); 73*b3b94faaSDavid Teigland 74*b3b94faaSDavid Teigland return ret; 75*b3b94faaSDavid Teigland } 76*b3b94faaSDavid Teigland 77*b3b94faaSDavid Teigland static ssize_t withdraw_show(struct gfs2_sbd *sdp, char *buf) 78*b3b94faaSDavid Teigland { 79*b3b94faaSDavid Teigland unsigned int b = test_bit(SDF_SHUTDOWN, &sdp->sd_flags); 80*b3b94faaSDavid Teigland return sprintf(buf, "%u\n", b); 81*b3b94faaSDavid Teigland } 82*b3b94faaSDavid Teigland 83*b3b94faaSDavid Teigland static ssize_t withdraw_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 84*b3b94faaSDavid Teigland { 85*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 86*b3b94faaSDavid Teigland return -EACCES; 87*b3b94faaSDavid Teigland 88*b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 89*b3b94faaSDavid Teigland return -EINVAL; 90*b3b94faaSDavid Teigland 91*b3b94faaSDavid Teigland gfs2_lm_withdraw(sdp, 92*b3b94faaSDavid Teigland "GFS2: fsid=%s: withdrawing from cluster at user's request\n", 93*b3b94faaSDavid Teigland sdp->sd_fsname); 94*b3b94faaSDavid Teigland return len; 95*b3b94faaSDavid Teigland } 96*b3b94faaSDavid Teigland 97*b3b94faaSDavid Teigland static ssize_t statfs_sync_store(struct gfs2_sbd *sdp, const char *buf, 98*b3b94faaSDavid Teigland size_t len) 99*b3b94faaSDavid Teigland { 100*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 101*b3b94faaSDavid Teigland return -EACCES; 102*b3b94faaSDavid Teigland 103*b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 104*b3b94faaSDavid Teigland return -EINVAL; 105*b3b94faaSDavid Teigland 106*b3b94faaSDavid Teigland gfs2_statfs_sync(sdp); 107*b3b94faaSDavid Teigland return len; 108*b3b94faaSDavid Teigland } 109*b3b94faaSDavid Teigland 110*b3b94faaSDavid Teigland static ssize_t shrink_store(struct gfs2_sbd *sdp, const char *buf, size_t len) 111*b3b94faaSDavid Teigland { 112*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 113*b3b94faaSDavid Teigland return -EACCES; 114*b3b94faaSDavid Teigland 115*b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 116*b3b94faaSDavid Teigland return -EINVAL; 117*b3b94faaSDavid Teigland 118*b3b94faaSDavid Teigland gfs2_gl_hash_clear(sdp, NO_WAIT); 119*b3b94faaSDavid Teigland return len; 120*b3b94faaSDavid Teigland } 121*b3b94faaSDavid Teigland 122*b3b94faaSDavid Teigland static ssize_t quota_sync_store(struct gfs2_sbd *sdp, const char *buf, 123*b3b94faaSDavid Teigland size_t len) 124*b3b94faaSDavid Teigland { 125*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 126*b3b94faaSDavid Teigland return -EACCES; 127*b3b94faaSDavid Teigland 128*b3b94faaSDavid Teigland if (simple_strtol(buf, NULL, 0) != 1) 129*b3b94faaSDavid Teigland return -EINVAL; 130*b3b94faaSDavid Teigland 131*b3b94faaSDavid Teigland gfs2_quota_sync(sdp); 132*b3b94faaSDavid Teigland return len; 133*b3b94faaSDavid Teigland } 134*b3b94faaSDavid Teigland 135*b3b94faaSDavid Teigland static ssize_t quota_refresh_user_store(struct gfs2_sbd *sdp, const char *buf, 136*b3b94faaSDavid Teigland size_t len) 137*b3b94faaSDavid Teigland { 138*b3b94faaSDavid Teigland uint32_t id; 139*b3b94faaSDavid Teigland 140*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 141*b3b94faaSDavid Teigland return -EACCES; 142*b3b94faaSDavid Teigland 143*b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 144*b3b94faaSDavid Teigland 145*b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 1, id); 146*b3b94faaSDavid Teigland return len; 147*b3b94faaSDavid Teigland } 148*b3b94faaSDavid Teigland 149*b3b94faaSDavid Teigland static ssize_t quota_refresh_group_store(struct gfs2_sbd *sdp, const char *buf, 150*b3b94faaSDavid Teigland size_t len) 151*b3b94faaSDavid Teigland { 152*b3b94faaSDavid Teigland uint32_t id; 153*b3b94faaSDavid Teigland 154*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 155*b3b94faaSDavid Teigland return -EACCES; 156*b3b94faaSDavid Teigland 157*b3b94faaSDavid Teigland id = simple_strtoul(buf, NULL, 0); 158*b3b94faaSDavid Teigland 159*b3b94faaSDavid Teigland gfs2_quota_refresh(sdp, 0, id); 160*b3b94faaSDavid Teigland return len; 161*b3b94faaSDavid Teigland } 162*b3b94faaSDavid Teigland 163*b3b94faaSDavid Teigland struct gfs2_attr { 164*b3b94faaSDavid Teigland struct attribute attr; 165*b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 166*b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 167*b3b94faaSDavid Teigland }; 168*b3b94faaSDavid Teigland 169*b3b94faaSDavid Teigland #define GFS2_ATTR(name, mode, show, store) \ 170*b3b94faaSDavid Teigland static struct gfs2_attr gfs2_attr_##name = __ATTR(name, mode, show, store) 171*b3b94faaSDavid Teigland 172*b3b94faaSDavid Teigland GFS2_ATTR(id, 0444, id_show, NULL); 173*b3b94faaSDavid Teigland GFS2_ATTR(fsname, 0444, fsname_show, NULL); 174*b3b94faaSDavid Teigland GFS2_ATTR(freeze, 0644, freeze_show, freeze_store); 175*b3b94faaSDavid Teigland GFS2_ATTR(shrink, 0200, NULL, shrink_store); 176*b3b94faaSDavid Teigland GFS2_ATTR(withdraw, 0644, withdraw_show, withdraw_store); 177*b3b94faaSDavid Teigland GFS2_ATTR(statfs_sync, 0200, NULL, statfs_sync_store); 178*b3b94faaSDavid Teigland GFS2_ATTR(quota_sync, 0200, NULL, quota_sync_store); 179*b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_user, 0200, NULL, quota_refresh_user_store); 180*b3b94faaSDavid Teigland GFS2_ATTR(quota_refresh_group, 0200, NULL, quota_refresh_group_store); 181*b3b94faaSDavid Teigland 182*b3b94faaSDavid Teigland static struct attribute *gfs2_attrs[] = { 183*b3b94faaSDavid Teigland &gfs2_attr_id.attr, 184*b3b94faaSDavid Teigland &gfs2_attr_fsname.attr, 185*b3b94faaSDavid Teigland &gfs2_attr_freeze.attr, 186*b3b94faaSDavid Teigland &gfs2_attr_shrink.attr, 187*b3b94faaSDavid Teigland &gfs2_attr_withdraw.attr, 188*b3b94faaSDavid Teigland &gfs2_attr_statfs_sync.attr, 189*b3b94faaSDavid Teigland &gfs2_attr_quota_sync.attr, 190*b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_user.attr, 191*b3b94faaSDavid Teigland &gfs2_attr_quota_refresh_group.attr, 192*b3b94faaSDavid Teigland NULL, 193*b3b94faaSDavid Teigland }; 194*b3b94faaSDavid Teigland 195*b3b94faaSDavid Teigland static ssize_t gfs2_attr_show(struct kobject *kobj, struct attribute *attr, 196*b3b94faaSDavid Teigland char *buf) 197*b3b94faaSDavid Teigland { 198*b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 199*b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 200*b3b94faaSDavid Teigland return a->show ? a->show(sdp, buf) : 0; 201*b3b94faaSDavid Teigland } 202*b3b94faaSDavid Teigland 203*b3b94faaSDavid Teigland static ssize_t gfs2_attr_store(struct kobject *kobj, struct attribute *attr, 204*b3b94faaSDavid Teigland const char *buf, size_t len) 205*b3b94faaSDavid Teigland { 206*b3b94faaSDavid Teigland struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj); 207*b3b94faaSDavid Teigland struct gfs2_attr *a = container_of(attr, struct gfs2_attr, attr); 208*b3b94faaSDavid Teigland return a->store ? a->store(sdp, buf, len) : len; 209*b3b94faaSDavid Teigland } 210*b3b94faaSDavid Teigland 211*b3b94faaSDavid Teigland static struct sysfs_ops gfs2_attr_ops = { 212*b3b94faaSDavid Teigland .show = gfs2_attr_show, 213*b3b94faaSDavid Teigland .store = gfs2_attr_store, 214*b3b94faaSDavid Teigland }; 215*b3b94faaSDavid Teigland 216*b3b94faaSDavid Teigland static struct kobj_type gfs2_ktype = { 217*b3b94faaSDavid Teigland .default_attrs = gfs2_attrs, 218*b3b94faaSDavid Teigland .sysfs_ops = &gfs2_attr_ops, 219*b3b94faaSDavid Teigland }; 220*b3b94faaSDavid Teigland 221*b3b94faaSDavid Teigland static struct kset gfs2_kset = { 222*b3b94faaSDavid Teigland .subsys = &fs_subsys, 223*b3b94faaSDavid Teigland .kobj = {.name = "gfs2",}, 224*b3b94faaSDavid Teigland .ktype = &gfs2_ktype, 225*b3b94faaSDavid Teigland }; 226*b3b94faaSDavid Teigland 227*b3b94faaSDavid Teigland /* 228*b3b94faaSDavid Teigland * display struct lm_lockstruct fields 229*b3b94faaSDavid Teigland */ 230*b3b94faaSDavid Teigland 231*b3b94faaSDavid Teigland struct lockstruct_attr { 232*b3b94faaSDavid Teigland struct attribute attr; 233*b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 234*b3b94faaSDavid Teigland }; 235*b3b94faaSDavid Teigland 236*b3b94faaSDavid Teigland #define LOCKSTRUCT_ATTR(name, fmt) \ 237*b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 238*b3b94faaSDavid Teigland { \ 239*b3b94faaSDavid Teigland return sprintf(buf, fmt, sdp->sd_lockstruct.ls_##name); \ 240*b3b94faaSDavid Teigland } \ 241*b3b94faaSDavid Teigland static struct lockstruct_attr lockstruct_attr_##name = __ATTR_RO(name) 242*b3b94faaSDavid Teigland 243*b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(jid, "%u\n"); 244*b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(first, "%u\n"); 245*b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(lvb_size, "%u\n"); 246*b3b94faaSDavid Teigland LOCKSTRUCT_ATTR(flags, "%d\n"); 247*b3b94faaSDavid Teigland 248*b3b94faaSDavid Teigland static struct attribute *lockstruct_attrs[] = { 249*b3b94faaSDavid Teigland &lockstruct_attr_jid.attr, 250*b3b94faaSDavid Teigland &lockstruct_attr_first.attr, 251*b3b94faaSDavid Teigland &lockstruct_attr_lvb_size.attr, 252*b3b94faaSDavid Teigland &lockstruct_attr_flags.attr, 253*b3b94faaSDavid Teigland NULL 254*b3b94faaSDavid Teigland }; 255*b3b94faaSDavid Teigland 256*b3b94faaSDavid Teigland /* 257*b3b94faaSDavid Teigland * display struct gfs2_args fields 258*b3b94faaSDavid Teigland */ 259*b3b94faaSDavid Teigland 260*b3b94faaSDavid Teigland struct args_attr { 261*b3b94faaSDavid Teigland struct attribute attr; 262*b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 263*b3b94faaSDavid Teigland }; 264*b3b94faaSDavid Teigland 265*b3b94faaSDavid Teigland #define ARGS_ATTR(name, fmt) \ 266*b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 267*b3b94faaSDavid Teigland { \ 268*b3b94faaSDavid Teigland return sprintf(buf, fmt, sdp->sd_args.ar_##name); \ 269*b3b94faaSDavid Teigland } \ 270*b3b94faaSDavid Teigland static struct args_attr args_attr_##name = __ATTR_RO(name) 271*b3b94faaSDavid Teigland 272*b3b94faaSDavid Teigland ARGS_ATTR(lockproto, "%s\n"); 273*b3b94faaSDavid Teigland ARGS_ATTR(locktable, "%s\n"); 274*b3b94faaSDavid Teigland ARGS_ATTR(hostdata, "%s\n"); 275*b3b94faaSDavid Teigland ARGS_ATTR(spectator, "%d\n"); 276*b3b94faaSDavid Teigland ARGS_ATTR(ignore_local_fs, "%d\n"); 277*b3b94faaSDavid Teigland ARGS_ATTR(localcaching, "%d\n"); 278*b3b94faaSDavid Teigland ARGS_ATTR(localflocks, "%d\n"); 279*b3b94faaSDavid Teigland ARGS_ATTR(debug, "%d\n"); 280*b3b94faaSDavid Teigland ARGS_ATTR(upgrade, "%d\n"); 281*b3b94faaSDavid Teigland ARGS_ATTR(num_glockd, "%u\n"); 282*b3b94faaSDavid Teigland ARGS_ATTR(posix_acl, "%d\n"); 283*b3b94faaSDavid Teigland ARGS_ATTR(quota, "%u\n"); 284*b3b94faaSDavid Teigland ARGS_ATTR(suiddir, "%d\n"); 285*b3b94faaSDavid Teigland ARGS_ATTR(data, "%d\n"); 286*b3b94faaSDavid Teigland 287*b3b94faaSDavid Teigland /* one oddball doesn't fit the macro mold */ 288*b3b94faaSDavid Teigland static ssize_t noatime_show(struct gfs2_sbd *sdp, char *buf) 289*b3b94faaSDavid Teigland { 290*b3b94faaSDavid Teigland return sprintf(buf, "%d\n", !!test_bit(SDF_NOATIME, &sdp->sd_flags)); 291*b3b94faaSDavid Teigland } 292*b3b94faaSDavid Teigland static struct args_attr args_attr_noatime = __ATTR_RO(noatime); 293*b3b94faaSDavid Teigland 294*b3b94faaSDavid Teigland static struct attribute *args_attrs[] = { 295*b3b94faaSDavid Teigland &args_attr_lockproto.attr, 296*b3b94faaSDavid Teigland &args_attr_locktable.attr, 297*b3b94faaSDavid Teigland &args_attr_hostdata.attr, 298*b3b94faaSDavid Teigland &args_attr_spectator.attr, 299*b3b94faaSDavid Teigland &args_attr_ignore_local_fs.attr, 300*b3b94faaSDavid Teigland &args_attr_localcaching.attr, 301*b3b94faaSDavid Teigland &args_attr_localflocks.attr, 302*b3b94faaSDavid Teigland &args_attr_debug.attr, 303*b3b94faaSDavid Teigland &args_attr_upgrade.attr, 304*b3b94faaSDavid Teigland &args_attr_num_glockd.attr, 305*b3b94faaSDavid Teigland &args_attr_posix_acl.attr, 306*b3b94faaSDavid Teigland &args_attr_quota.attr, 307*b3b94faaSDavid Teigland &args_attr_suiddir.attr, 308*b3b94faaSDavid Teigland &args_attr_data.attr, 309*b3b94faaSDavid Teigland &args_attr_noatime.attr, 310*b3b94faaSDavid Teigland NULL 311*b3b94faaSDavid Teigland }; 312*b3b94faaSDavid Teigland 313*b3b94faaSDavid Teigland /* 314*b3b94faaSDavid Teigland * display counters from superblock 315*b3b94faaSDavid Teigland */ 316*b3b94faaSDavid Teigland 317*b3b94faaSDavid Teigland struct counters_attr { 318*b3b94faaSDavid Teigland struct attribute attr; 319*b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 320*b3b94faaSDavid Teigland }; 321*b3b94faaSDavid Teigland 322*b3b94faaSDavid Teigland #define COUNTERS_ATTR_GENERAL(name, fmt, val) \ 323*b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 324*b3b94faaSDavid Teigland { \ 325*b3b94faaSDavid Teigland return sprintf(buf, fmt, val); \ 326*b3b94faaSDavid Teigland } \ 327*b3b94faaSDavid Teigland static struct counters_attr counters_attr_##name = __ATTR_RO(name) 328*b3b94faaSDavid Teigland 329*b3b94faaSDavid Teigland #define COUNTERS_ATTR_SIMPLE(name, fmt) \ 330*b3b94faaSDavid Teigland COUNTERS_ATTR_GENERAL(name, fmt, sdp->sd_##name) 331*b3b94faaSDavid Teigland 332*b3b94faaSDavid Teigland #define COUNTERS_ATTR_ATOMIC(name, fmt) \ 333*b3b94faaSDavid Teigland COUNTERS_ATTR_GENERAL(name, fmt, (unsigned int)atomic_read(&sdp->sd_##name)) 334*b3b94faaSDavid Teigland 335*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(glock_count, "%u\n"); 336*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(glock_held_count, "%u\n"); 337*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(inode_count, "%u\n"); 338*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(bufdata_count, "%u\n"); 339*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(unlinked_count, "%u\n"); 340*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(quota_count, "%u\n"); 341*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_num_gl, "%u\n"); 342*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_num_buf, "%u\n"); 343*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_num_revoke, "%u\n"); 344*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_num_rg, "%u\n"); 345*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_num_databuf, "%u\n"); 346*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_blks_free, "%u\n"); 347*b3b94faaSDavid Teigland COUNTERS_ATTR_GENERAL(jd_blocks, "%u\n", sdp->sd_jdesc->jd_blocks); 348*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(reclaim_count, "%u\n"); 349*b3b94faaSDavid Teigland COUNTERS_ATTR_SIMPLE(log_wraps, "%llu\n"); 350*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(fh2dentry_misses, "%u\n"); 351*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(reclaimed, "%u\n"); 352*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(log_flush_incore, "%u\n"); 353*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(log_flush_ondisk, "%u\n"); 354*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(glock_nq_calls, "%u\n"); 355*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(glock_dq_calls, "%u\n"); 356*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(glock_prefetch_calls, "%u\n"); 357*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(lm_lock_calls, "%u\n"); 358*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(lm_unlock_calls, "%u\n"); 359*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(lm_callbacks, "%u\n"); 360*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_address, "%u\n"); 361*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_dentry, "%u\n"); 362*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_export, "%u\n"); 363*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_file, "%u\n"); 364*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_inode, "%u\n"); 365*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_super, "%u\n"); 366*b3b94faaSDavid Teigland COUNTERS_ATTR_ATOMIC(ops_vm, "%u\n"); 367*b3b94faaSDavid Teigland 368*b3b94faaSDavid Teigland static struct attribute *counters_attrs[] = { 369*b3b94faaSDavid Teigland &counters_attr_glock_count.attr, 370*b3b94faaSDavid Teigland &counters_attr_glock_held_count.attr, 371*b3b94faaSDavid Teigland &counters_attr_inode_count.attr, 372*b3b94faaSDavid Teigland &counters_attr_bufdata_count.attr, 373*b3b94faaSDavid Teigland &counters_attr_unlinked_count.attr, 374*b3b94faaSDavid Teigland &counters_attr_quota_count.attr, 375*b3b94faaSDavid Teigland &counters_attr_log_num_gl.attr, 376*b3b94faaSDavid Teigland &counters_attr_log_num_buf.attr, 377*b3b94faaSDavid Teigland &counters_attr_log_num_revoke.attr, 378*b3b94faaSDavid Teigland &counters_attr_log_num_rg.attr, 379*b3b94faaSDavid Teigland &counters_attr_log_num_databuf.attr, 380*b3b94faaSDavid Teigland &counters_attr_log_blks_free.attr, 381*b3b94faaSDavid Teigland &counters_attr_jd_blocks.attr, 382*b3b94faaSDavid Teigland &counters_attr_reclaim_count.attr, 383*b3b94faaSDavid Teigland &counters_attr_log_wraps.attr, 384*b3b94faaSDavid Teigland &counters_attr_fh2dentry_misses.attr, 385*b3b94faaSDavid Teigland &counters_attr_reclaimed.attr, 386*b3b94faaSDavid Teigland &counters_attr_log_flush_incore.attr, 387*b3b94faaSDavid Teigland &counters_attr_log_flush_ondisk.attr, 388*b3b94faaSDavid Teigland &counters_attr_glock_nq_calls.attr, 389*b3b94faaSDavid Teigland &counters_attr_glock_dq_calls.attr, 390*b3b94faaSDavid Teigland &counters_attr_glock_prefetch_calls.attr, 391*b3b94faaSDavid Teigland &counters_attr_lm_lock_calls.attr, 392*b3b94faaSDavid Teigland &counters_attr_lm_unlock_calls.attr, 393*b3b94faaSDavid Teigland &counters_attr_lm_callbacks.attr, 394*b3b94faaSDavid Teigland &counters_attr_ops_address.attr, 395*b3b94faaSDavid Teigland &counters_attr_ops_dentry.attr, 396*b3b94faaSDavid Teigland &counters_attr_ops_export.attr, 397*b3b94faaSDavid Teigland &counters_attr_ops_file.attr, 398*b3b94faaSDavid Teigland &counters_attr_ops_inode.attr, 399*b3b94faaSDavid Teigland &counters_attr_ops_super.attr, 400*b3b94faaSDavid Teigland &counters_attr_ops_vm.attr, 401*b3b94faaSDavid Teigland NULL 402*b3b94faaSDavid Teigland }; 403*b3b94faaSDavid Teigland 404*b3b94faaSDavid Teigland /* 405*b3b94faaSDavid Teigland * get and set struct gfs2_tune fields 406*b3b94faaSDavid Teigland */ 407*b3b94faaSDavid Teigland 408*b3b94faaSDavid Teigland static ssize_t quota_scale_show(struct gfs2_sbd *sdp, char *buf) 409*b3b94faaSDavid Teigland { 410*b3b94faaSDavid Teigland return sprintf(buf, "%u %u\n", sdp->sd_tune.gt_quota_scale_num, 411*b3b94faaSDavid Teigland sdp->sd_tune.gt_quota_scale_den); 412*b3b94faaSDavid Teigland } 413*b3b94faaSDavid Teigland 414*b3b94faaSDavid Teigland static ssize_t quota_scale_store(struct gfs2_sbd *sdp, const char *buf, 415*b3b94faaSDavid Teigland size_t len) 416*b3b94faaSDavid Teigland { 417*b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 418*b3b94faaSDavid Teigland unsigned int x, y; 419*b3b94faaSDavid Teigland 420*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 421*b3b94faaSDavid Teigland return -EACCES; 422*b3b94faaSDavid Teigland 423*b3b94faaSDavid Teigland if (sscanf(buf, "%u %u", &x, &y) != 2 || !y) 424*b3b94faaSDavid Teigland return -EINVAL; 425*b3b94faaSDavid Teigland 426*b3b94faaSDavid Teigland spin_lock(>->gt_spin); 427*b3b94faaSDavid Teigland gt->gt_quota_scale_num = x; 428*b3b94faaSDavid Teigland gt->gt_quota_scale_den = y; 429*b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 430*b3b94faaSDavid Teigland return len; 431*b3b94faaSDavid Teigland } 432*b3b94faaSDavid Teigland 433*b3b94faaSDavid Teigland static ssize_t tune_set(struct gfs2_sbd *sdp, unsigned int *field, 434*b3b94faaSDavid Teigland int check_zero, const char *buf, size_t len) 435*b3b94faaSDavid Teigland { 436*b3b94faaSDavid Teigland struct gfs2_tune *gt = &sdp->sd_tune; 437*b3b94faaSDavid Teigland unsigned int x; 438*b3b94faaSDavid Teigland 439*b3b94faaSDavid Teigland if (!capable(CAP_SYS_ADMIN)) 440*b3b94faaSDavid Teigland return -EACCES; 441*b3b94faaSDavid Teigland 442*b3b94faaSDavid Teigland x = simple_strtoul(buf, NULL, 0); 443*b3b94faaSDavid Teigland 444*b3b94faaSDavid Teigland if (check_zero && !x) 445*b3b94faaSDavid Teigland return -EINVAL; 446*b3b94faaSDavid Teigland 447*b3b94faaSDavid Teigland spin_lock(>->gt_spin); 448*b3b94faaSDavid Teigland *field = x; 449*b3b94faaSDavid Teigland spin_unlock(>->gt_spin); 450*b3b94faaSDavid Teigland return len; 451*b3b94faaSDavid Teigland } 452*b3b94faaSDavid Teigland 453*b3b94faaSDavid Teigland struct tune_attr { 454*b3b94faaSDavid Teigland struct attribute attr; 455*b3b94faaSDavid Teigland ssize_t (*show)(struct gfs2_sbd *, char *); 456*b3b94faaSDavid Teigland ssize_t (*store)(struct gfs2_sbd *, const char *, size_t); 457*b3b94faaSDavid Teigland }; 458*b3b94faaSDavid Teigland 459*b3b94faaSDavid Teigland #define TUNE_ATTR_3(name, show, store) \ 460*b3b94faaSDavid Teigland static struct tune_attr tune_attr_##name = __ATTR(name, 0644, show, store) 461*b3b94faaSDavid Teigland 462*b3b94faaSDavid Teigland #define TUNE_ATTR_2(name, store) \ 463*b3b94faaSDavid Teigland static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \ 464*b3b94faaSDavid Teigland { \ 465*b3b94faaSDavid Teigland return sprintf(buf, "%u\n", sdp->sd_tune.gt_##name); \ 466*b3b94faaSDavid Teigland } \ 467*b3b94faaSDavid Teigland TUNE_ATTR_3(name, name##_show, store) 468*b3b94faaSDavid Teigland 469*b3b94faaSDavid Teigland #define TUNE_ATTR(name, check_zero) \ 470*b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 471*b3b94faaSDavid Teigland { \ 472*b3b94faaSDavid Teigland return tune_set(sdp, &sdp->sd_tune.gt_##name, check_zero, buf, len); \ 473*b3b94faaSDavid Teigland } \ 474*b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 475*b3b94faaSDavid Teigland 476*b3b94faaSDavid Teigland #define TUNE_ATTR_DAEMON(name, process) \ 477*b3b94faaSDavid Teigland static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\ 478*b3b94faaSDavid Teigland { \ 479*b3b94faaSDavid Teigland ssize_t r = tune_set(sdp, &sdp->sd_tune.gt_##name, 1, buf, len); \ 480*b3b94faaSDavid Teigland wake_up_process(sdp->sd_##process); \ 481*b3b94faaSDavid Teigland return r; \ 482*b3b94faaSDavid Teigland } \ 483*b3b94faaSDavid Teigland TUNE_ATTR_2(name, name##_store) 484*b3b94faaSDavid Teigland 485*b3b94faaSDavid Teigland TUNE_ATTR(ilimit, 0); 486*b3b94faaSDavid Teigland TUNE_ATTR(ilimit_tries, 0); 487*b3b94faaSDavid Teigland TUNE_ATTR(ilimit_min, 0); 488*b3b94faaSDavid Teigland TUNE_ATTR(demote_secs, 0); 489*b3b94faaSDavid Teigland TUNE_ATTR(incore_log_blocks, 0); 490*b3b94faaSDavid Teigland TUNE_ATTR(log_flush_secs, 0); 491*b3b94faaSDavid Teigland TUNE_ATTR(jindex_refresh_secs, 0); 492*b3b94faaSDavid Teigland TUNE_ATTR(quota_warn_period, 0); 493*b3b94faaSDavid Teigland TUNE_ATTR(quota_quantum, 0); 494*b3b94faaSDavid Teigland TUNE_ATTR(atime_quantum, 0); 495*b3b94faaSDavid Teigland TUNE_ATTR(max_readahead, 0); 496*b3b94faaSDavid Teigland TUNE_ATTR(complain_secs, 0); 497*b3b94faaSDavid Teigland TUNE_ATTR(reclaim_limit, 0); 498*b3b94faaSDavid Teigland TUNE_ATTR(prefetch_secs, 0); 499*b3b94faaSDavid Teigland TUNE_ATTR(statfs_slow, 0); 500*b3b94faaSDavid Teigland TUNE_ATTR(new_files_jdata, 0); 501*b3b94faaSDavid Teigland TUNE_ATTR(new_files_directio, 0); 502*b3b94faaSDavid Teigland TUNE_ATTR(quota_simul_sync, 1); 503*b3b94faaSDavid Teigland TUNE_ATTR(quota_cache_secs, 1); 504*b3b94faaSDavid Teigland TUNE_ATTR(max_atomic_write, 1); 505*b3b94faaSDavid Teigland TUNE_ATTR(stall_secs, 1); 506*b3b94faaSDavid Teigland TUNE_ATTR(entries_per_readdir, 1); 507*b3b94faaSDavid Teigland TUNE_ATTR(greedy_default, 1); 508*b3b94faaSDavid Teigland TUNE_ATTR(greedy_quantum, 1); 509*b3b94faaSDavid Teigland TUNE_ATTR(greedy_max, 1); 510*b3b94faaSDavid Teigland TUNE_ATTR(statfs_quantum, 1); 511*b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(scand_secs, scand_process); 512*b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process); 513*b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(logd_secs, logd_process); 514*b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(quotad_secs, quotad_process); 515*b3b94faaSDavid Teigland TUNE_ATTR_DAEMON(inoded_secs, inoded_process); 516*b3b94faaSDavid Teigland TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store); 517*b3b94faaSDavid Teigland 518*b3b94faaSDavid Teigland static struct attribute *tune_attrs[] = { 519*b3b94faaSDavid Teigland &tune_attr_ilimit.attr, 520*b3b94faaSDavid Teigland &tune_attr_ilimit_tries.attr, 521*b3b94faaSDavid Teigland &tune_attr_ilimit_min.attr, 522*b3b94faaSDavid Teigland &tune_attr_demote_secs.attr, 523*b3b94faaSDavid Teigland &tune_attr_incore_log_blocks.attr, 524*b3b94faaSDavid Teigland &tune_attr_log_flush_secs.attr, 525*b3b94faaSDavid Teigland &tune_attr_jindex_refresh_secs.attr, 526*b3b94faaSDavid Teigland &tune_attr_quota_warn_period.attr, 527*b3b94faaSDavid Teigland &tune_attr_quota_quantum.attr, 528*b3b94faaSDavid Teigland &tune_attr_atime_quantum.attr, 529*b3b94faaSDavid Teigland &tune_attr_max_readahead.attr, 530*b3b94faaSDavid Teigland &tune_attr_complain_secs.attr, 531*b3b94faaSDavid Teigland &tune_attr_reclaim_limit.attr, 532*b3b94faaSDavid Teigland &tune_attr_prefetch_secs.attr, 533*b3b94faaSDavid Teigland &tune_attr_statfs_slow.attr, 534*b3b94faaSDavid Teigland &tune_attr_quota_simul_sync.attr, 535*b3b94faaSDavid Teigland &tune_attr_quota_cache_secs.attr, 536*b3b94faaSDavid Teigland &tune_attr_max_atomic_write.attr, 537*b3b94faaSDavid Teigland &tune_attr_stall_secs.attr, 538*b3b94faaSDavid Teigland &tune_attr_entries_per_readdir.attr, 539*b3b94faaSDavid Teigland &tune_attr_greedy_default.attr, 540*b3b94faaSDavid Teigland &tune_attr_greedy_quantum.attr, 541*b3b94faaSDavid Teigland &tune_attr_greedy_max.attr, 542*b3b94faaSDavid Teigland &tune_attr_statfs_quantum.attr, 543*b3b94faaSDavid Teigland &tune_attr_scand_secs.attr, 544*b3b94faaSDavid Teigland &tune_attr_recoverd_secs.attr, 545*b3b94faaSDavid Teigland &tune_attr_logd_secs.attr, 546*b3b94faaSDavid Teigland &tune_attr_quotad_secs.attr, 547*b3b94faaSDavid Teigland &tune_attr_inoded_secs.attr, 548*b3b94faaSDavid Teigland &tune_attr_quota_scale.attr, 549*b3b94faaSDavid Teigland &tune_attr_new_files_jdata.attr, 550*b3b94faaSDavid Teigland &tune_attr_new_files_directio.attr, 551*b3b94faaSDavid Teigland NULL 552*b3b94faaSDavid Teigland }; 553*b3b94faaSDavid Teigland 554*b3b94faaSDavid Teigland static struct attribute_group lockstruct_group = { 555*b3b94faaSDavid Teigland .name = "lockstruct", 556*b3b94faaSDavid Teigland .attrs = lockstruct_attrs 557*b3b94faaSDavid Teigland }; 558*b3b94faaSDavid Teigland 559*b3b94faaSDavid Teigland static struct attribute_group counters_group = { 560*b3b94faaSDavid Teigland .name = "counters", 561*b3b94faaSDavid Teigland .attrs = counters_attrs 562*b3b94faaSDavid Teigland }; 563*b3b94faaSDavid Teigland 564*b3b94faaSDavid Teigland static struct attribute_group args_group = { 565*b3b94faaSDavid Teigland .name = "args", 566*b3b94faaSDavid Teigland .attrs = args_attrs 567*b3b94faaSDavid Teigland }; 568*b3b94faaSDavid Teigland 569*b3b94faaSDavid Teigland static struct attribute_group tune_group = { 570*b3b94faaSDavid Teigland .name = "tune", 571*b3b94faaSDavid Teigland .attrs = tune_attrs 572*b3b94faaSDavid Teigland }; 573*b3b94faaSDavid Teigland 574*b3b94faaSDavid Teigland int gfs2_sys_fs_add(struct gfs2_sbd *sdp) 575*b3b94faaSDavid Teigland { 576*b3b94faaSDavid Teigland int error; 577*b3b94faaSDavid Teigland 578*b3b94faaSDavid Teigland sdp->sd_kobj.kset = &gfs2_kset; 579*b3b94faaSDavid Teigland sdp->sd_kobj.ktype = &gfs2_ktype; 580*b3b94faaSDavid Teigland 581*b3b94faaSDavid Teigland error = kobject_set_name(&sdp->sd_kobj, "%s", sdp->sd_table_name); 582*b3b94faaSDavid Teigland if (error) 583*b3b94faaSDavid Teigland goto fail; 584*b3b94faaSDavid Teigland 585*b3b94faaSDavid Teigland error = kobject_register(&sdp->sd_kobj); 586*b3b94faaSDavid Teigland if (error) 587*b3b94faaSDavid Teigland goto fail; 588*b3b94faaSDavid Teigland 589*b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &lockstruct_group); 590*b3b94faaSDavid Teigland if (error) 591*b3b94faaSDavid Teigland goto fail_reg; 592*b3b94faaSDavid Teigland 593*b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &counters_group); 594*b3b94faaSDavid Teigland if (error) 595*b3b94faaSDavid Teigland goto fail_lockstruct; 596*b3b94faaSDavid Teigland 597*b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &args_group); 598*b3b94faaSDavid Teigland if (error) 599*b3b94faaSDavid Teigland goto fail_counters; 600*b3b94faaSDavid Teigland 601*b3b94faaSDavid Teigland error = sysfs_create_group(&sdp->sd_kobj, &tune_group); 602*b3b94faaSDavid Teigland if (error) 603*b3b94faaSDavid Teigland goto fail_args; 604*b3b94faaSDavid Teigland 605*b3b94faaSDavid Teigland return 0; 606*b3b94faaSDavid Teigland 607*b3b94faaSDavid Teigland fail_args: 608*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 609*b3b94faaSDavid Teigland fail_counters: 610*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &counters_group); 611*b3b94faaSDavid Teigland fail_lockstruct: 612*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 613*b3b94faaSDavid Teigland fail_reg: 614*b3b94faaSDavid Teigland kobject_unregister(&sdp->sd_kobj); 615*b3b94faaSDavid Teigland fail: 616*b3b94faaSDavid Teigland return error; 617*b3b94faaSDavid Teigland } 618*b3b94faaSDavid Teigland 619*b3b94faaSDavid Teigland void gfs2_sys_fs_del(struct gfs2_sbd *sdp) 620*b3b94faaSDavid Teigland { 621*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &tune_group); 622*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &args_group); 623*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &counters_group); 624*b3b94faaSDavid Teigland sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group); 625*b3b94faaSDavid Teigland kobject_unregister(&sdp->sd_kobj); 626*b3b94faaSDavid Teigland } 627*b3b94faaSDavid Teigland 628*b3b94faaSDavid Teigland int gfs2_sys_init(void) 629*b3b94faaSDavid Teigland { 630*b3b94faaSDavid Teigland gfs2_sys_margs = NULL; 631*b3b94faaSDavid Teigland spin_lock_init(&gfs2_sys_margs_lock); 632*b3b94faaSDavid Teigland return kset_register(&gfs2_kset); 633*b3b94faaSDavid Teigland } 634*b3b94faaSDavid Teigland 635*b3b94faaSDavid Teigland void gfs2_sys_uninit(void) 636*b3b94faaSDavid Teigland { 637*b3b94faaSDavid Teigland kfree(gfs2_sys_margs); 638*b3b94faaSDavid Teigland kset_unregister(&gfs2_kset); 639*b3b94faaSDavid Teigland } 640*b3b94faaSDavid Teigland 641