/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Copyright (C) 2002 Cluster File Systems, Inc. * * This file is part of Lustre, http://www.lustre.org. * * Lustre is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * Lustre is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Lustre; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ #define DEBUG_SUBSYSTEM S_CLASS #include #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) #include #endif #include #include #include #include "mds_internal.h" #ifndef LPROCFS struct lprocfs_vars lprocfs_mds_obd_vars[] = { {0} }; struct lprocfs_vars lprocfs_mds_module_vars[] = { {0} }; struct lprocfs_vars lprocfs_mdt_obd_vars[] = { {0} }; struct lprocfs_vars lprocfs_mdt_module_vars[] = { {0} }; #else static int lprocfs_mds_rd_mntdev(char *page, char **start, off_t off, int count, int *eof, void *data) { struct obd_device* obd = (struct obd_device *)data; LASSERT(obd != NULL); LASSERT(obd->u.mds.mds_vfsmnt->mnt_devname); *eof = 1; return snprintf(page, count, "%s\n", obd->u.mds.mds_vfsmnt->mnt_devname); } static int lprocfs_mds_wr_evict_client(struct file *file, const char *buffer, unsigned long count, void *data) { struct obd_device *obd = data; struct obd_export *doomed_exp = NULL; struct obd_uuid doomed; struct list_head *p; char tmpbuf[sizeof(doomed)]; sscanf(buffer, "%40s", tmpbuf); obd_str2uuid(&doomed, tmpbuf); spin_lock(&obd->obd_dev_lock); list_for_each(p, &obd->obd_exports) { doomed_exp = list_entry(p, struct obd_export, exp_obd_chain); if (obd_uuid_equals(&doomed, &doomed_exp->exp_client_uuid)) { class_export_get(doomed_exp); break; } doomed_exp = NULL; } spin_unlock(&obd->obd_dev_lock); if (doomed_exp == NULL) { CERROR("can't disconnect %s: no export found\n", doomed.uuid); } else { CERROR("evicting %s at adminstrative request\n", doomed.uuid); ptlrpc_fail_export(doomed_exp); class_export_put(doomed_exp); } return count; } static int lprocfs_mds_wr_config_update(struct file *file, const char *buffer, unsigned long count, void *data) { struct obd_device *obd = data; ENTRY; RETURN(mds_dt_update_config(obd, 0)); } static int lprocfs_rd_filesopen(char *page, char **start, off_t off, int count, int *eof, void *data) { struct obd_device *obd = data; LASSERT(obd != NULL); *eof = 1; return snprintf(page, count, "%d\n", atomic_read(&obd->u.mds.mds_open_count)); } static int lprocfs_rd_last_fid(char *page, char **start, off_t off, int count, int *eof, void *data) { struct obd_device *obd = (struct obd_device *)data; struct mds_obd *mds = &obd->u.mds; __u64 last_fid; spin_lock(&mds->mds_last_fid_lock); last_fid = mds->mds_last_fid; spin_unlock(&mds->mds_last_fid_lock); *eof = 1; return snprintf(page, count, LPD64"\n", last_fid); } static int lprocfs_rd_group(char *page, char **start, off_t off, int count, int *eof, void *data) { struct obd_device *obd = (struct obd_device *)data; struct mds_obd *mds = &obd->u.mds; *eof = 1; return snprintf(page, count, "%lu\n", (unsigned long)mds->mds_num); } struct lprocfs_vars lprocfs_mds_obd_vars[] = { { "uuid", lprocfs_rd_uuid, 0, 0 }, { "blocksize", lprocfs_rd_blksize, 0, 0 }, { "kbytestotal", lprocfs_rd_kbytestotal, 0, 0 }, { "kbytesfree", lprocfs_rd_kbytesfree, 0, 0 }, { "kbytesavail", lprocfs_rd_kbytesavail, 0, 0 }, { "fstype", lprocfs_rd_fstype, 0, 0 }, { "filestotal", lprocfs_rd_filestotal, 0, 0 }, { "filesfree", lprocfs_rd_filesfree, 0, 0 }, { "filesopen", lprocfs_rd_filesopen, 0, 0 }, { "mntdev", lprocfs_mds_rd_mntdev, 0, 0 }, { "last_fid", lprocfs_rd_last_fid, 0, 0 }, { "group", lprocfs_rd_group, 0, 0 }, { "recovery_status", lprocfs_obd_rd_recovery_status, 0, 0 }, { "evict_client", 0, lprocfs_mds_wr_evict_client, 0 }, { "config_update", 0, lprocfs_mds_wr_config_update, 0 }, { "num_exports", lprocfs_rd_num_exports, 0, 0 }, { 0 } }; /* * LSD proc entry handlers */ static int lprocfs_wr_lsd_downcall(struct file *file, const char *buffer, unsigned long count, void *data) { struct upcall_cache *cache = __mds_get_global_lsd_cache(); struct lsd_downcall_args param; gid_t gids_local[NGROUPS_SMALL]; gid_t *gids = NULL; if (count != sizeof(param)) { CERROR("invalid data size %lu\n", count); goto do_err_downcall; } if (copy_from_user(¶m, buffer, count)) { CERROR("broken downcall\n"); goto do_err_downcall; } if (param.err) { CERROR("LSD downcall indicate error %d\n", param.err); goto do_downcall; } if (param.ngroups > NGROUPS_MAX) { CERROR("%d groups too big\n", param.ngroups); goto do_err_downcall; } if (param.ngroups <= NGROUPS_SMALL) gids = gids_local; else { OBD_ALLOC(gids, param.ngroups * sizeof(gid_t)); if (!gids) { CERROR("fail to alloc memory for %d gids\n", param.ngroups); goto do_err_downcall; } } if (copy_from_user(gids, param.groups, param.ngroups * sizeof(gid_t))) { CERROR("broken downcall\n"); goto do_err_downcall; } param.groups = gids; do_downcall: upcall_cache_downcall(cache, (__u64) param.uid, ¶m); if (gids && gids != gids_local) OBD_FREE(gids, param.ngroups * sizeof(gid_t)); return count; do_err_downcall: param.err = -EINVAL; goto do_downcall; } static int lprocfs_rd_lsd_expire(char *page, char **start, off_t off, int count, int *eof, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); *eof = 1; return snprintf(page, count, "%lu\n", cache->uc_entry_expire); } static int lprocfs_wr_lsd_expire(struct file *file, const char *buffer, unsigned long count, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); char buf[32]; if (copy_from_user(buf, buffer, min(count, 32UL))) return count; buf[31] = 0; sscanf(buf, "%lu", &cache->uc_entry_expire); return count; } static int lprocfs_rd_lsd_ac_expire(char *page, char **start, off_t off, int count, int *eof, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); *eof = 1; return snprintf(page, count, "%lu\n", cache->uc_acquire_expire); } static int lprocfs_wr_lsd_ac_expire(struct file *file, const char *buffer, unsigned long count, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); char buf[32]; if (copy_from_user(buf, buffer, min(count, 32UL))) return count; buf[31] = 0; sscanf(buf, "%lu", &cache->uc_acquire_expire); return count; } static int lprocfs_rd_lsd_upcall(char *page, char **start, off_t off, int count, int *eof, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); *eof = 1; return snprintf(page, count, "%s\n", cache->uc_upcall); } static int lprocfs_wr_lsd_upcall(struct file *file, const char *buffer, unsigned long count, void *data) { struct upcall_cache *cache= __mds_get_global_lsd_cache(); if (count < UC_CACHE_UPCALL_MAXPATH) { sscanf(buffer, "%1024s", cache->uc_upcall); cache->uc_upcall[UC_CACHE_UPCALL_MAXPATH - 1] = 0; } return count; } extern void lgss_svc_cache_flush(__u32 uid); static int lprocfs_wr_lsd_flush(struct file *file, const char *buffer, unsigned long count, void *data) { char buf[32]; __u32 uid; if (copy_from_user(buf, buffer, min(count, 32UL))) return count; buf[31] = 0; sscanf(buf, "%d", &uid); mds_flush_lsd(uid); #ifdef ENABLE_GSS lgss_svc_cache_flush(uid); #endif return count; } struct lprocfs_vars lprocfs_mds_module_vars[] = { { "num_refs", lprocfs_rd_numrefs, 0, 0 }, /* LSD stuff */ { "lsd_expire_interval", lprocfs_rd_lsd_expire, lprocfs_wr_lsd_expire, 0}, { "lsd_acquire_expire", lprocfs_rd_lsd_ac_expire, lprocfs_wr_lsd_ac_expire, 0}, { "lsd_upcall", lprocfs_rd_lsd_upcall, lprocfs_wr_lsd_upcall, 0}, { "lsd_flush", 0, lprocfs_wr_lsd_flush, 0}, { "lsd_downcall", 0, lprocfs_wr_lsd_downcall, 0}, { 0 } }; struct lprocfs_vars lprocfs_mdt_obd_vars[] = { { "uuid", lprocfs_rd_uuid, 0, 0 }, { 0 } }; struct lprocfs_vars lprocfs_mdt_module_vars[] = { { "num_refs", lprocfs_rd_numrefs, 0, 0 }, { 0 } }; #endif /* LPROCFS */ struct lprocfs_static_vars lprocfs_array_vars[] = { {lprocfs_mds_module_vars, lprocfs_mds_obd_vars}, {lprocfs_mdt_module_vars, lprocfs_mdt_obd_vars}}; LPROCFS_INIT_MULTI_VARS(lprocfs_array_vars, (sizeof(lprocfs_array_vars) / sizeof(struct lprocfs_static_vars)))