From: "John L. Hammond" <john.hammond@xxxxxxxxx> The functions defined in lustre/include/lustre_idmap.h are not used so remove them. Signed-off-by: John L. Hammond <john.hammond@xxxxxxxxx> Signed-off-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> --- .../staging/lustre/lustre/include/lustre_idmap.h | 104 ----- drivers/staging/lustre/lustre/obdclass/Makefile | 2 +- drivers/staging/lustre/lustre/obdclass/idmap.c | 477 --------------------- 3 files changed, 1 insertion(+), 582 deletions(-) delete mode 100644 drivers/staging/lustre/lustre/include/lustre_idmap.h delete mode 100644 drivers/staging/lustre/lustre/obdclass/idmap.c diff --git a/drivers/staging/lustre/lustre/include/lustre_idmap.h b/drivers/staging/lustre/lustre/include/lustre_idmap.h deleted file mode 100644 index 5624b8b..0000000 --- a/drivers/staging/lustre/lustre/include/lustre_idmap.h +++ /dev/null @@ -1,104 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program 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 version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * lustre/lustre/include/lustre_idmap.h - * - * MDS data structures. - * See also lustre_idl.h for wire formats of requests. - */ - -#ifndef _LUSTRE_IDMAP_H -#define _LUSTRE_IDMAP_H - -/** \defgroup idmap idmap - * - * @{ - */ - -#include "../../include/linux/libcfs/libcfs.h" - -#define CFS_NGROUPS_PER_BLOCK ((int)(PAGE_CACHE_SIZE / sizeof(gid_t))) - -#define CFS_GROUP_AT(gi, i) \ - ((gi)->blocks[(i) / CFS_NGROUPS_PER_BLOCK][(i) % CFS_NGROUPS_PER_BLOCK]) - -enum { - CFS_IC_NOTHING = 0, /* convert nothing */ - CFS_IC_ALL = 1, /* convert all items */ - CFS_IC_MAPPED = 2, /* convert mapped uid/gid */ - CFS_IC_UNMAPPED = 3 /* convert unmapped uid/gid */ -}; - -#define CFS_IDMAP_NOTFOUND (-1) - -#define CFS_IDMAP_HASHSIZE 32 - -enum lustre_idmap_idx { - RMT_UIDMAP_IDX, - LCL_UIDMAP_IDX, - RMT_GIDMAP_IDX, - LCL_GIDMAP_IDX, - CFS_IDMAP_N_HASHES -}; - -struct lustre_idmap_table { - spinlock_t lit_lock; - struct list_head lit_idmaps[CFS_IDMAP_N_HASHES][CFS_IDMAP_HASHSIZE]; -}; - -struct lu_ucred; - -extern void lustre_groups_from_list(struct group_info *ginfo, gid_t *glist); -extern void lustre_groups_sort(struct group_info *group_info); -extern int lustre_in_group_p(struct lu_ucred *mu, gid_t grp); - -extern int lustre_idmap_add(struct lustre_idmap_table *t, - uid_t ruid, uid_t luid, - gid_t rgid, gid_t lgid); -extern int lustre_idmap_del(struct lustre_idmap_table *t, - uid_t ruid, uid_t luid, - gid_t rgid, gid_t lgid); -extern int lustre_idmap_lookup_uid(struct lu_ucred *mu, - struct lustre_idmap_table *t, - int reverse, uid_t uid); -extern int lustre_idmap_lookup_gid(struct lu_ucred *mu, - struct lustre_idmap_table *t, - int reverse, gid_t gid); -extern struct lustre_idmap_table *lustre_idmap_init(void); -extern void lustre_idmap_fini(struct lustre_idmap_table *t); - -/** @} idmap */ - -#endif diff --git a/drivers/staging/lustre/lustre/obdclass/Makefile b/drivers/staging/lustre/lustre/obdclass/Makefile index ba10043..989fb7c 100644 --- a/drivers/staging/lustre/lustre/obdclass/Makefile +++ b/drivers/staging/lustre/lustre/obdclass/Makefile @@ -6,5 +6,5 @@ obdclass-y := linux/linux-module.o linux/linux-obdo.o linux/linux-sysctl.o \ lustre_handles.o lustre_peer.o llog_osd.o \ local_storage.o statfs_pack.o obdo.o obd_config.o obd_mount.o\ mea.o lu_object.o dt_object.o capa.o cl_object.o \ - cl_page.o cl_lock.o cl_io.o lu_ref.o acl.o idmap.o \ + cl_page.o cl_lock.o cl_io.o lu_ref.o acl.o \ lu_ucred.o diff --git a/drivers/staging/lustre/lustre/obdclass/idmap.c b/drivers/staging/lustre/lustre/obdclass/idmap.c deleted file mode 100644 index 8c2f0b7..0000000 --- a/drivers/staging/lustre/lustre/obdclass/idmap.c +++ /dev/null @@ -1,477 +0,0 @@ -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program 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 version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf - * - * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, - * CA 95054 USA or visit www.sun.com if you need additional information or - * have any questions. - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * lustre/obdclass/idmap.c - * - * Lustre user identity mapping. - * - * Author: Fan Yong <fanyong@xxxxxxxxxxxxx> - */ - -#define DEBUG_SUBSYSTEM S_SEC - -#include "../include/lustre_idmap.h" -#include "../include/md_object.h" -#include "../include/obd_support.h" - -#define lustre_get_group_info(group_info) do { \ - atomic_inc(&(group_info)->usage); \ -} while (0) - -#define lustre_put_group_info(group_info) do { \ - if (atomic_dec_and_test(&(group_info)->usage)) \ - groups_free(group_info); \ -} while (0) - -/* - * groups_search() is copied from linux kernel! - * A simple bsearch. - */ -static int lustre_groups_search(const struct group_info *group_info, gid_t grp) -{ - int left, right; - - if (!group_info) - return 0; - - left = 0; - right = group_info->ngroups; - while (left < right) { - int mid = (left + right) / 2; - int cmp = grp - - from_kgid(&init_user_ns, CFS_GROUP_AT(group_info, mid)); - - if (cmp > 0) - left = mid + 1; - else if (cmp < 0) - right = mid; - else - return 1; - } - return 0; -} - -void lustre_groups_from_list(struct group_info *ginfo, gid_t *glist) -{ - int i; - int count = ginfo->ngroups; - - /* fill group_info from gid array */ - for (i = 0; i < ginfo->nblocks && count > 0; i++) { - int cp_count = min(CFS_NGROUPS_PER_BLOCK, count); - int off = i * CFS_NGROUPS_PER_BLOCK; - int len = cp_count * sizeof(*glist); - - memcpy(ginfo->blocks[i], glist + off, len); - count -= cp_count; - } -} -EXPORT_SYMBOL(lustre_groups_from_list); - -/* groups_sort() is copied from linux kernel! */ -/* a simple shell-metzner sort */ -void lustre_groups_sort(struct group_info *group_info) -{ - int base, max, stride; - int gidsetsize = group_info->ngroups; - - for (stride = 1; stride < gidsetsize; stride = 3 * stride + 1) - ; /* nothing */ - stride /= 3; - - while (stride) { - max = gidsetsize - stride; - for (base = 0; base < max; base++) { - int left = base; - int right = left + stride; - gid_t tmp = from_kgid(&init_user_ns, - CFS_GROUP_AT(group_info, right)); - - while (left >= 0 && - tmp < from_kgid(&init_user_ns, - CFS_GROUP_AT(group_info, left))) { - CFS_GROUP_AT(group_info, right) = - CFS_GROUP_AT(group_info, left); - right = left; - left -= stride; - } - CFS_GROUP_AT(group_info, right) = - make_kgid(&init_user_ns, tmp); - } - stride /= 3; - } -} -EXPORT_SYMBOL(lustre_groups_sort); - -int lustre_in_group_p(struct lu_ucred *mu, gid_t grp) -{ - int rc = 1; - - if (grp != mu->uc_fsgid) { - struct group_info *group_info = NULL; - - if (mu->uc_ginfo || !mu->uc_identity || - mu->uc_valid == UCRED_OLD) - if (grp == mu->uc_suppgids[0] || - grp == mu->uc_suppgids[1]) - return 1; - - if (mu->uc_ginfo) - group_info = mu->uc_ginfo; - else if (mu->uc_identity) - group_info = mu->uc_identity->mi_ginfo; - - if (!group_info) - return 0; - - lustre_get_group_info(group_info); - rc = lustre_groups_search(group_info, grp); - lustre_put_group_info(group_info); - } - return rc; -} -EXPORT_SYMBOL(lustre_in_group_p); - -struct lustre_idmap_entry { - struct list_head lie_rmt_uid_hash; /* hashed as lie_rmt_uid; */ - struct list_head lie_lcl_uid_hash; /* hashed as lie_lcl_uid; */ - struct list_head lie_rmt_gid_hash; /* hashed as lie_rmt_gid; */ - struct list_head lie_lcl_gid_hash; /* hashed as lie_lcl_gid; */ - uid_t lie_rmt_uid; /* remote uid */ - uid_t lie_lcl_uid; /* local uid */ - gid_t lie_rmt_gid; /* remote gid */ - gid_t lie_lcl_gid; /* local gid */ -}; - -static inline __u32 lustre_idmap_hashfunc(__u32 id) -{ - return id & (CFS_IDMAP_HASHSIZE - 1); -} - -static -struct lustre_idmap_entry *idmap_entry_alloc(uid_t rmt_uid, uid_t lcl_uid, - gid_t rmt_gid, gid_t lcl_gid) -{ - struct lustre_idmap_entry *e; - - OBD_ALLOC_PTR(e); - if (e == NULL) - return NULL; - - INIT_LIST_HEAD(&e->lie_rmt_uid_hash); - INIT_LIST_HEAD(&e->lie_lcl_uid_hash); - INIT_LIST_HEAD(&e->lie_rmt_gid_hash); - INIT_LIST_HEAD(&e->lie_lcl_gid_hash); - e->lie_rmt_uid = rmt_uid; - e->lie_lcl_uid = lcl_uid; - e->lie_rmt_gid = rmt_gid; - e->lie_lcl_gid = lcl_gid; - - return e; -} - -static void idmap_entry_free(struct lustre_idmap_entry *e) -{ - if (!list_empty(&e->lie_rmt_uid_hash)) - list_del(&e->lie_rmt_uid_hash); - if (!list_empty(&e->lie_lcl_uid_hash)) - list_del(&e->lie_lcl_uid_hash); - if (!list_empty(&e->lie_rmt_gid_hash)) - list_del(&e->lie_rmt_gid_hash); - if (!list_empty(&e->lie_lcl_gid_hash)) - list_del(&e->lie_lcl_gid_hash); - OBD_FREE_PTR(e); -} - -/* - * return value - * NULL: not found entry - * ERR_PTR(-EACCES): found 1(remote):N(local) mapped entry - * others: found normal entry - */ -static -struct lustre_idmap_entry *idmap_search_entry(struct lustre_idmap_table *t, - uid_t rmt_uid, uid_t lcl_uid, - gid_t rmt_gid, gid_t lcl_gid) -{ - struct list_head *head; - struct lustre_idmap_entry *e; - - head = &t->lit_idmaps[RMT_UIDMAP_IDX][lustre_idmap_hashfunc(rmt_uid)]; - list_for_each_entry(e, head, lie_rmt_uid_hash) - if (e->lie_rmt_uid == rmt_uid) { - if (e->lie_lcl_uid == lcl_uid) { - if (e->lie_rmt_gid == rmt_gid && - e->lie_lcl_gid == lcl_gid) - /* must be quaternion match */ - return e; - } else { - /* 1:N uid mapping */ - CERROR("rmt uid %u already be mapped to %u" - " (new %u)\n", e->lie_rmt_uid, - e->lie_lcl_uid, lcl_uid); - return ERR_PTR(-EACCES); - } - } - - head = &t->lit_idmaps[RMT_GIDMAP_IDX][lustre_idmap_hashfunc(rmt_gid)]; - list_for_each_entry(e, head, lie_rmt_gid_hash) - if (e->lie_rmt_gid == rmt_gid) { - if (e->lie_lcl_gid == lcl_gid) { - if (unlikely(e->lie_rmt_uid == rmt_uid && - e->lie_lcl_uid == lcl_uid)) - /* after uid mapping search above, - * we should never come here */ - LBUG(); - } else { - /* 1:N gid mapping */ - CERROR("rmt gid %u already be mapped to %u" - " (new %u)\n", e->lie_rmt_gid, - e->lie_lcl_gid, lcl_gid); - return ERR_PTR(-EACCES); - } - } - - return NULL; -} - -static __u32 idmap_lookup_uid(struct list_head *hash, int reverse, - __u32 uid) -{ - struct list_head *head = &hash[lustre_idmap_hashfunc(uid)]; - struct lustre_idmap_entry *e; - - if (!reverse) { - list_for_each_entry(e, head, lie_rmt_uid_hash) - if (e->lie_rmt_uid == uid) - return e->lie_lcl_uid; - } else { - list_for_each_entry(e, head, lie_lcl_uid_hash) - if (e->lie_lcl_uid == uid) - return e->lie_rmt_uid; - } - - return CFS_IDMAP_NOTFOUND; -} - -static __u32 idmap_lookup_gid(struct list_head *hash, int reverse, __u32 gid) -{ - struct list_head *head = &hash[lustre_idmap_hashfunc(gid)]; - struct lustre_idmap_entry *e; - - if (!reverse) { - list_for_each_entry(e, head, lie_rmt_gid_hash) - if (e->lie_rmt_gid == gid) - return e->lie_lcl_gid; - } else { - list_for_each_entry(e, head, lie_lcl_gid_hash) - if (e->lie_lcl_gid == gid) - return e->lie_rmt_gid; - } - - return CFS_IDMAP_NOTFOUND; -} - -int lustre_idmap_add(struct lustre_idmap_table *t, - uid_t ruid, uid_t luid, - gid_t rgid, gid_t lgid) -{ - struct lustre_idmap_entry *e0, *e1; - - LASSERT(t); - - spin_lock(&t->lit_lock); - e0 = idmap_search_entry(t, ruid, luid, rgid, lgid); - spin_unlock(&t->lit_lock); - if (!e0) { - e0 = idmap_entry_alloc(ruid, luid, rgid, lgid); - if (!e0) - return -ENOMEM; - - spin_lock(&t->lit_lock); - e1 = idmap_search_entry(t, ruid, luid, rgid, lgid); - if (e1 == NULL) { - list_add_tail(&e0->lie_rmt_uid_hash, - &t->lit_idmaps[RMT_UIDMAP_IDX] - [lustre_idmap_hashfunc(ruid)]); - list_add_tail(&e0->lie_lcl_uid_hash, - &t->lit_idmaps[LCL_UIDMAP_IDX] - [lustre_idmap_hashfunc(luid)]); - list_add_tail(&e0->lie_rmt_gid_hash, - &t->lit_idmaps[RMT_GIDMAP_IDX] - [lustre_idmap_hashfunc(rgid)]); - list_add_tail(&e0->lie_lcl_gid_hash, - &t->lit_idmaps[LCL_GIDMAP_IDX] - [lustre_idmap_hashfunc(lgid)]); - } - spin_unlock(&t->lit_lock); - if (e1 != NULL) { - idmap_entry_free(e0); - if (IS_ERR(e1)) - return PTR_ERR(e1); - } - } else if (IS_ERR(e0)) { - return PTR_ERR(e0); - } - - return 0; -} -EXPORT_SYMBOL(lustre_idmap_add); - -int lustre_idmap_del(struct lustre_idmap_table *t, - uid_t ruid, uid_t luid, - gid_t rgid, gid_t lgid) -{ - struct lustre_idmap_entry *e; - int rc = 0; - - LASSERT(t); - - spin_lock(&t->lit_lock); - e = idmap_search_entry(t, ruid, luid, rgid, lgid); - if (IS_ERR(e)) - rc = PTR_ERR(e); - else if (e) - idmap_entry_free(e); - spin_unlock(&t->lit_lock); - - return rc; -} -EXPORT_SYMBOL(lustre_idmap_del); - -int lustre_idmap_lookup_uid(struct lu_ucred *mu, - struct lustre_idmap_table *t, - int reverse, uid_t uid) -{ - struct list_head *hash; - - if (mu && (mu->uc_valid == UCRED_OLD || mu->uc_valid == UCRED_NEW)) { - if (!reverse) { - if (uid == mu->uc_o_uid) - return mu->uc_uid; - else if (uid == mu->uc_o_fsuid) - return mu->uc_fsuid; - } else { - if (uid == mu->uc_uid) - return mu->uc_o_uid; - else if (uid == mu->uc_fsuid) - return mu->uc_o_fsuid; - } - } - - if (t == NULL) - return CFS_IDMAP_NOTFOUND; - - hash = t->lit_idmaps[reverse ? LCL_UIDMAP_IDX : RMT_UIDMAP_IDX]; - - spin_lock(&t->lit_lock); - uid = idmap_lookup_uid(hash, reverse, uid); - spin_unlock(&t->lit_lock); - - return uid; -} -EXPORT_SYMBOL(lustre_idmap_lookup_uid); - -int lustre_idmap_lookup_gid(struct lu_ucred *mu, struct lustre_idmap_table *t, - int reverse, gid_t gid) -{ - struct list_head *hash; - - if (mu && (mu->uc_valid == UCRED_OLD || mu->uc_valid == UCRED_NEW)) { - if (!reverse) { - if (gid == mu->uc_o_gid) - return mu->uc_gid; - else if (gid == mu->uc_o_fsgid) - return mu->uc_fsgid; - } else { - if (gid == mu->uc_gid) - return mu->uc_o_gid; - else if (gid == mu->uc_fsgid) - return mu->uc_o_fsgid; - } - } - - if (t == NULL) - return CFS_IDMAP_NOTFOUND; - - hash = t->lit_idmaps[reverse ? LCL_GIDMAP_IDX : RMT_GIDMAP_IDX]; - - spin_lock(&t->lit_lock); - gid = idmap_lookup_gid(hash, reverse, gid); - spin_unlock(&t->lit_lock); - - return gid; -} -EXPORT_SYMBOL(lustre_idmap_lookup_gid); - -struct lustre_idmap_table *lustre_idmap_init(void) -{ - struct lustre_idmap_table *t; - int i, j; - - OBD_ALLOC_PTR(t); - if (unlikely(t == NULL)) - return ERR_PTR(-ENOMEM); - - spin_lock_init(&t->lit_lock); - for (i = 0; i < ARRAY_SIZE(t->lit_idmaps); i++) - for (j = 0; j < ARRAY_SIZE(t->lit_idmaps[i]); j++) - INIT_LIST_HEAD(&t->lit_idmaps[i][j]); - - return t; -} -EXPORT_SYMBOL(lustre_idmap_init); - -void lustre_idmap_fini(struct lustre_idmap_table *t) -{ - struct list_head *list; - struct lustre_idmap_entry *e; - int i; - LASSERT(t); - - list = t->lit_idmaps[RMT_UIDMAP_IDX]; - spin_lock(&t->lit_lock); - for (i = 0; i < CFS_IDMAP_HASHSIZE; i++) - while (!list_empty(&list[i])) { - e = list_entry(list[i].next, - struct lustre_idmap_entry, - lie_rmt_uid_hash); - idmap_entry_free(e); - } - spin_unlock(&t->lit_lock); - - OBD_FREE_PTR(t); -} -EXPORT_SYMBOL(lustre_idmap_fini); -- 1.9.3 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
