*
* 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.
+ * 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, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LLITE
-#ifndef __KERNEL__
-# error This file is kernel only.
+#include <linux/user_namespace.h>
+#ifdef HAVE_UIDGID_HEADER
+# include <linux/uidgid.h>
#endif
-
#include <libcfs/libcfs.h>
#include <obd.h>
-#include <lustre_lite.h>
-
+#include "llite_internal.h"
#include "vvp_internal.h"
/*****************************************************************************
*
*/
+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)
+ lu_printer_t p, const struct lu_object *o)
{
- struct ccc_object *obj = lu2ccc(o);
- struct inode *inode = obj->cob_inode;
- struct ll_inode_info *lli;
-
- (*p)(env, cookie, "(%s %d %d) inode: %p ",
- cfs_list_empty(&obj->cob_pending_list) ? "-" : "+",
- obj->cob_transient_pages, cfs_atomic_read(&obj->cob_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;
+ 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 = ccc_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 = LTIME_S(inode->i_mtime);
- attr->cat_atime = LTIME_S(inode->i_atime);
- attr->cat_ctime = LTIME_S(inode->i_ctime);
- attr->cat_blocks = inode->i_blocks;
- attr->cat_uid = inode->i_uid;
- attr->cat_gid = inode->i_gid;
- /* KMS is not known by this layer */
- return 0; /* layers below have to fill in the rest */
+ 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);
+ attr->cat_projid = ll_i2info(inode)->lli_projid;
+ /* KMS is not known by this layer */
+ return 0; /* layers below have to fill in the rest */
}
-static int vvp_attr_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_attr *attr, unsigned valid)
+static int vvp_attr_update(const struct lu_env *env, struct cl_object *obj,
+ const struct cl_attr *attr, unsigned valid)
{
- struct inode *inode = ccc_object_inode(obj);
-
- if (valid & CAT_UID)
- inode->i_uid = attr->cat_uid;
- if (valid & CAT_GID)
- inode->i_gid = attr->cat_gid;
- if (valid & CAT_ATIME)
- LTIME_S(inode->i_atime) = attr->cat_atime;
- if (valid & CAT_MTIME)
- LTIME_S(inode->i_mtime) = attr->cat_mtime;
- if (valid & CAT_CTIME)
- LTIME_S(inode->i_ctime) = attr->cat_ctime;
- if (0 && valid & CAT_SIZE)
- cl_isize_write_nolock(inode, attr->cat_size);
- /* not currently necessary */
- if (0 && valid & (CAT_UID|CAT_GID|CAT_SIZE))
- mark_inode_dirty(inode);
- return 0;
+ 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);
+ if (valid & CAT_PROJID)
+ ll_i2info(inode)->lli_projid = attr->cat_projid;
+ /* not currently necessary */
+ if (0 && valid & (CAT_UID|CAT_GID|CAT_SIZE|CAT_PROJID))
+ mark_inode_dirty(inode);
+ return 0;
}
-int vvp_conf_set(const struct lu_env *env, struct cl_object *obj,
- const struct cl_object_conf *conf)
+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) {
- lli->lli_layout_gen = LL_LAYOUT_GEN_NONE;
- return 0;
+ 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;
+}
- if (conf->coc_opc != OBJECT_CONF_SET)
- return 0;
+static int vvp_prune(const struct lu_env *env, struct cl_object *obj)
+{
+ struct inode *inode = vvp_object_inode(obj);
+ int rc;
+ ENTRY;
+
+ 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);
+ if (inode->i_mapping->nrpages) {
+ CDEBUG(D_VFSTRACE, DFID ": still has %lu pages remaining\n",
+ PFID(lu_object_fid(&obj->co_lu)),
+ inode->i_mapping->nrpages);
+ RETURN(-EIO);
+ }
+
+ 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);
- if (conf->u.coc_md != NULL && conf->u.coc_md->lsm != NULL) {
- CDEBUG(D_VFSTRACE, "layout lock change: %u -> %u\n",
- lli->lli_layout_gen,
- conf->u.coc_md->lsm->lsm_layout_gen);
+ ENTRY;
+ lvb->lvb_mtime = inode->i_mtime.tv_sec;
+ lvb->lvb_atime = inode->i_atime.tv_sec;
+ lvb->lvb_ctime = inode->i_ctime.tv_sec;
- lli->lli_has_smd = true;
- lli->lli_layout_gen = conf->u.coc_md->lsm->lsm_layout_gen;
- } else {
- CDEBUG(D_VFSTRACE, "layout lock destroyed: %u.\n",
- lli->lli_layout_gen);
+ /*
+ * 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);
- lli->lli_has_smd = false;
- lli->lli_layout_gen = LL_LAYOUT_GEN_EMPTY;
+ RETURN(0);
+}
+
+static void vvp_req_attr_set(const struct lu_env *env, struct cl_object *obj,
+ struct cl_req_attr *attr)
+{
+ struct inode *inode;
+ struct obdo *oa;
+ u64 valid_flags = OBD_MD_FLTYPE | OBD_MD_FLUID | OBD_MD_FLGID;
+
+ oa = attr->cra_oa;
+ inode = vvp_object_inode(obj);
+
+ if (attr->cra_type == CRT_WRITE) {
+ valid_flags |= OBD_MD_FLMTIME | OBD_MD_FLCTIME;
+ obdo_set_o_projid(oa, ll_i2info(inode)->lli_projid);
}
- return 0;
+ 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,
+ sizeof(attr->cra_jobid));
}
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_set = vvp_attr_set,
- .coo_conf_set = vvp_conf_set,
- .coo_glimpse = ccc_object_glimpse
+ .coo_page_init = vvp_page_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 != NULL) {
+ 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);
+ OBD_SLAB_FREE_PTR(vob, vvp_object_kmem);
+}
+
static const struct lu_object_operations vvp_lu_obj_ops = {
- .loo_object_init = ccc_object_init,
- .loo_object_free = ccc_object_free,
- .loo_object_print = vvp_object_print
+ .loo_object_init = vvp_object_init,
+ .loo_object_free = vvp_object_free,
+ .loo_object_print = vvp_object_print,
};
-struct ccc_object *cl_inode2ccc(struct inode *inode)
+struct vvp_object *cl_inode2vvp(struct inode *inode)
{
- struct cl_inode_info *lli = cl_i2info(inode);
+ struct ll_inode_info *lli = ll_i2info(inode);
struct cl_object *obj = lli->lli_clob;
struct lu_object *lu;
LASSERT(obj != NULL);
lu = lu_object_locate(obj->co_lu.lo_header, &vvp_device_type);
LASSERT(lu != NULL);
- return lu2ccc(lu);
+
+ return lu2vvp(lu);
}
struct lu_object *vvp_object_alloc(const struct lu_env *env,
- const struct lu_object_header *hdr,
- struct lu_device *dev)
+ const struct lu_object_header *unused,
+ struct lu_device *dev)
{
- return ccc_object_alloc(env, hdr, dev, &vvp_ops, &vvp_lu_obj_ops);
-}
+ struct vvp_object *vob;
+ struct lu_object *obj;
+
+ OBD_SLAB_ALLOC_PTR_GFP(vob, vvp_object_kmem, GFP_NOFS);
+ if (vob != NULL) {
+ 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;
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff