diff options
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/vvp_object.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/vvp_object.c | 305 |
1 files changed, 0 insertions, 305 deletions
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c deleted file mode 100644 index 05ad3b322a29..000000000000 --- a/drivers/staging/lustre/lustre/llite/vvp_object.c +++ /dev/null @@ -1,305 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * 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.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, 2015, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * cl_object implementation for VVP layer. - * - * Author: Nikita Danilov <nikita.danilov@sun.com> - */ - -#define DEBUG_SUBSYSTEM S_LLITE - -#include <linux/libcfs/libcfs.h> - -#include <obd.h> - -#include "llite_internal.h" -#include "vvp_internal.h" - -/***************************************************************************** - * - * Object operations. - * - */ - -int vvp_object_invariant(const struct cl_object *obj) -{ - struct inode *inode = vvp_object_inode(obj); - struct ll_inode_info *lli = ll_i2info(inode); - - return (S_ISREG(inode->i_mode) || inode->i_mode == 0) && - lli->lli_clob == obj; -} - -static int vvp_object_print(const struct lu_env *env, void *cookie, - lu_printer_t p, const struct lu_object *o) -{ - struct vvp_object *obj = lu2vvp(o); - struct inode *inode = obj->vob_inode; - struct ll_inode_info *lli; - - (*p)(env, cookie, "(%d %d) inode: %p ", - atomic_read(&obj->vob_transient_pages), - atomic_read(&obj->vob_mmap_cnt), inode); - if (inode) { - lli = ll_i2info(inode); - (*p)(env, cookie, "%lu/%u %o %u %d %p " DFID, - inode->i_ino, inode->i_generation, inode->i_mode, - inode->i_nlink, atomic_read(&inode->i_count), - lli->lli_clob, PFID(&lli->lli_fid)); - } - return 0; -} - -static int vvp_attr_get(const struct lu_env *env, struct cl_object *obj, - struct cl_attr *attr) -{ - struct inode *inode = vvp_object_inode(obj); - - /* - * lov overwrites most of these fields in - * lov_attr_get()->...lov_merge_lvb_kms(), except when inode - * attributes are newer. - */ - - attr->cat_size = i_size_read(inode); - attr->cat_mtime = inode->i_mtime.tv_sec; - attr->cat_atime = inode->i_atime.tv_sec; - attr->cat_ctime = inode->i_ctime.tv_sec; - attr->cat_blocks = inode->i_blocks; - attr->cat_uid = from_kuid(&init_user_ns, inode->i_uid); - attr->cat_gid = from_kgid(&init_user_ns, inode->i_gid); - /* KMS is not known by this layer */ - return 0; /* layers below have to fill in the rest */ -} - -static int vvp_attr_update(const struct lu_env *env, struct cl_object *obj, - const struct cl_attr *attr, unsigned int valid) -{ - struct inode *inode = vvp_object_inode(obj); - - if (valid & CAT_UID) - inode->i_uid = make_kuid(&init_user_ns, attr->cat_uid); - if (valid & CAT_GID) - inode->i_gid = make_kgid(&init_user_ns, attr->cat_gid); - if (valid & CAT_ATIME) - inode->i_atime.tv_sec = attr->cat_atime; - if (valid & CAT_MTIME) - inode->i_mtime.tv_sec = attr->cat_mtime; - if (valid & CAT_CTIME) - inode->i_ctime.tv_sec = attr->cat_ctime; - if (0 && valid & CAT_SIZE) - i_size_write(inode, attr->cat_size); - /* not currently necessary */ - if (0 && valid & (CAT_UID | CAT_GID | CAT_SIZE)) - mark_inode_dirty(inode); - return 0; -} - -static int vvp_conf_set(const struct lu_env *env, struct cl_object *obj, - const struct cl_object_conf *conf) -{ - struct ll_inode_info *lli = ll_i2info(conf->coc_inode); - - if (conf->coc_opc == OBJECT_CONF_INVALIDATE) { - CDEBUG(D_VFSTRACE, DFID ": losing layout lock\n", - PFID(&lli->lli_fid)); - - ll_layout_version_set(lli, CL_LAYOUT_GEN_NONE); - - /* Clean up page mmap for this inode. - * The reason for us to do this is that if the page has - * already been installed into memory space, the process - * can access it without interacting with lustre, so this - * page may be stale due to layout change, and the process - * will never be notified. - * This operation is expensive but mmap processes have to pay - * a price themselves. - */ - unmap_mapping_range(conf->coc_inode->i_mapping, - 0, OBD_OBJECT_EOF, 0); - } - - return 0; -} - -static int vvp_prune(const struct lu_env *env, struct cl_object *obj) -{ - struct inode *inode = vvp_object_inode(obj); - int rc; - - rc = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, CL_FSYNC_LOCAL, 1); - if (rc < 0) { - CDEBUG(D_VFSTRACE, DFID ": writeback failed: %d\n", - PFID(lu_object_fid(&obj->co_lu)), rc); - return rc; - } - - truncate_inode_pages(inode->i_mapping, 0); - return 0; -} - -static int vvp_object_glimpse(const struct lu_env *env, - const struct cl_object *obj, struct ost_lvb *lvb) -{ - struct inode *inode = vvp_object_inode(obj); - - lvb->lvb_mtime = LTIME_S(inode->i_mtime); - lvb->lvb_atime = LTIME_S(inode->i_atime); - lvb->lvb_ctime = LTIME_S(inode->i_ctime); - /* - * LU-417: Add dirty pages block count lest i_blocks reports 0, some - * "cp" or "tar" on remote node may think it's a completely sparse file - * and skip it. - */ - if (lvb->lvb_size > 0 && lvb->lvb_blocks == 0) - lvb->lvb_blocks = dirty_cnt(inode); - return 0; -} - -static void vvp_req_attr_set(const struct lu_env *env, struct cl_object *obj, - struct cl_req_attr *attr) -{ - u64 valid_flags = OBD_MD_FLTYPE; - struct inode *inode; - struct obdo *oa; - - oa = attr->cra_oa; - inode = vvp_object_inode(obj); - - if (attr->cra_type == CRT_WRITE) - valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME | - OBD_MD_FLUID | OBD_MD_FLGID; - obdo_from_inode(oa, inode, valid_flags & attr->cra_flags); - obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid); - if (OBD_FAIL_CHECK(OBD_FAIL_LFSCK_INVALID_PFID)) - oa->o_parent_oid++; - memcpy(attr->cra_jobid, ll_i2info(inode)->lli_jobid, LUSTRE_JOBID_SIZE); -} - -static const struct cl_object_operations vvp_ops = { - .coo_page_init = vvp_page_init, - .coo_lock_init = vvp_lock_init, - .coo_io_init = vvp_io_init, - .coo_attr_get = vvp_attr_get, - .coo_attr_update = vvp_attr_update, - .coo_conf_set = vvp_conf_set, - .coo_prune = vvp_prune, - .coo_glimpse = vvp_object_glimpse, - .coo_req_attr_set = vvp_req_attr_set -}; - -static int vvp_object_init0(const struct lu_env *env, - struct vvp_object *vob, - const struct cl_object_conf *conf) -{ - vob->vob_inode = conf->coc_inode; - atomic_set(&vob->vob_transient_pages, 0); - cl_object_page_init(&vob->vob_cl, sizeof(struct vvp_page)); - return 0; -} - -static int vvp_object_init(const struct lu_env *env, struct lu_object *obj, - const struct lu_object_conf *conf) -{ - struct vvp_device *dev = lu2vvp_dev(obj->lo_dev); - struct vvp_object *vob = lu2vvp(obj); - struct lu_object *below; - struct lu_device *under; - int result; - - under = &dev->vdv_next->cd_lu_dev; - below = under->ld_ops->ldo_object_alloc(env, obj->lo_header, under); - if (below) { - const struct cl_object_conf *cconf; - - cconf = lu2cl_conf(conf); - lu_object_add(obj, below); - result = vvp_object_init0(env, vob, cconf); - } else { - result = -ENOMEM; - } - - return result; -} - -static void vvp_object_free(const struct lu_env *env, struct lu_object *obj) -{ - struct vvp_object *vob = lu2vvp(obj); - - lu_object_fini(obj); - lu_object_header_fini(obj->lo_header); - kmem_cache_free(vvp_object_kmem, vob); -} - -static const struct lu_object_operations vvp_lu_obj_ops = { - .loo_object_init = vvp_object_init, - .loo_object_free = vvp_object_free, - .loo_object_print = vvp_object_print, -}; - -struct vvp_object *cl_inode2vvp(struct inode *inode) -{ - struct ll_inode_info *lli = ll_i2info(inode); - struct cl_object *obj = lli->lli_clob; - struct lu_object *lu; - - lu = lu_object_locate(obj->co_lu.lo_header, &vvp_device_type); - LASSERT(lu); - return lu2vvp(lu); -} - -struct lu_object *vvp_object_alloc(const struct lu_env *env, - const struct lu_object_header *unused, - struct lu_device *dev) -{ - struct vvp_object *vob; - struct lu_object *obj; - - vob = kmem_cache_zalloc(vvp_object_kmem, GFP_NOFS); - if (vob) { - struct cl_object_header *hdr; - - obj = &vob->vob_cl.co_lu; - hdr = &vob->vob_header; - cl_object_header_init(hdr); - hdr->coh_page_bufsize = cfs_size_round(sizeof(struct cl_page)); - - lu_object_init(obj, &hdr->coh_lu, dev); - lu_object_add_top(&hdr->coh_lu, obj); - - vob->vob_cl.co_ops = &vvp_ops; - obj->lo_ops = &vvp_lu_obj_ops; - } else { - obj = NULL; - } - return obj; -} |