*
* 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) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2015, Intel Corporation.
+ * Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
/* return EADATA length to the caller. negative value means error */
static int mdt_getxattr_pack_reply(struct mdt_thread_info * info)
{
- struct req_capsule *pill = info->mti_pill ;
- struct ptlrpc_request *req = mdt_info_req(info);
- char *xattr_name;
- __u64 valid;
- static const char user_string[] = "user.";
- int size, rc;
- ENTRY;
+ struct req_capsule *pill = info->mti_pill;
+ struct ptlrpc_request *req = mdt_info_req(info);
+ const char *xattr_name;
+ u64 valid;
+ static const char user_string[] = "user.";
+ int size;
+ int rc = 0;
+ int rc2;
+ ENTRY;
valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
- /* Determine how many bytes we need */
+ /* Determine how many bytes we need */
if (valid == OBD_MD_FLXATTR) {
- xattr_name = req_capsule_client_get(pill, &RMF_NAME);
- if (!xattr_name)
- RETURN(-EFAULT);
+ xattr_name = req_capsule_client_get(pill, &RMF_NAME);
+ if (!xattr_name)
+ RETURN(-EFAULT);
if (!(exp_connect_flags(req->rq_export) & OBD_CONNECT_XATTR) &&
!strncmp(xattr_name, user_string, sizeof(user_string) - 1))
RETURN(-EOPNOTSUPP);
- size = mo_xattr_get(info->mti_env,
- mdt_object_child(info->mti_object),
- &LU_BUF_NULL, xattr_name);
- } else if (valid == OBD_MD_FLXATTRLS) {
- size = mo_xattr_list(info->mti_env,
- mdt_object_child(info->mti_object),
- &LU_BUF_NULL);
+ size = mo_xattr_get(info->mti_env,
+ mdt_object_child(info->mti_object),
+ &LU_BUF_NULL, xattr_name);
+ if (size == -ENODATA) {
+ /* XXX: Some client code will not handle -ENODATA
+ * for XATTR_NAME_LOV (trusted.lov) properly. */
+ if (strcmp(xattr_name, XATTR_NAME_LOV) == 0)
+ rc = 0;
+ else
+ rc = -ENODATA;
+
+ size = 0;
+ }
+ } else if (valid == OBD_MD_FLXATTRLS) {
+ xattr_name = "list";
+ size = mo_xattr_list(info->mti_env,
+ mdt_object_child(info->mti_object),
+ &LU_BUF_NULL);
} else if (valid == OBD_MD_FLXATTRALL) {
+ xattr_name = "all";
/* N.B. eadatasize = 0 is not valid for FLXATTRALL */
/* We could calculate accurate sizes, but this would
* introduce a lot of overhead, let's do it later... */
req_capsule_set_size(pill, &RMF_EAVALS, RCL_SERVER, size);
req_capsule_set_size(pill, &RMF_EAVALS_LENS, RCL_SERVER, size);
} else {
- CDEBUG(D_INFO, "Valid bits: "LPX64"\n",
+ CDEBUG(D_INFO, "Valid bits: %#llx\n",
info->mti_body->mbo_valid);
- RETURN(-EINVAL);
- }
-
- if (size == -ENODATA) {
- size = 0;
- } else if (size < 0) {
- if (size != -EOPNOTSUPP)
- CERROR("Error geting EA size: %d\n", size);
+ RETURN(-EINVAL);
+ }
+
+ if (size < 0) {
+ if (size != -EOPNOTSUPP && size != -ENOENT)
+ CERROR("%s: error geting EA size for '%s': rc = %d\n",
+ mdt_obd_name(info->mti_mdt), xattr_name, size);
RETURN(size);
}
- req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
+ if (req_capsule_has_field(pill, &RMF_ACL, RCL_SERVER))
+ req_capsule_set_size(pill, &RMF_ACL, RCL_SERVER,
+ LUSTRE_POSIX_ACL_MAX_SIZE_OLD);
+
+ req_capsule_set_size(pill, &RMF_EADATA, RCL_SERVER,
info->mti_body->mbo_eadatasize == 0 ? 0 : size);
- rc = req_capsule_server_pack(pill);
- if (rc) {
- LASSERT(rc < 0);
- RETURN(rc);
- }
- if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
- RETURN(-ENOMEM);
+ rc2 = req_capsule_server_pack(pill);
+ if (rc2 < 0)
+ RETURN(rc2);
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_MDS_GETXATTR_PACK))
+ RETURN(-ENOMEM);
+
+ RETURN(rc < 0 ? rc : size);
+}
- RETURN(size);
+static int mdt_nodemap_map_acl(struct mdt_thread_info *info, void *buf,
+ size_t size, const char *name,
+ enum nodemap_tree_type tree_type)
+{
+ struct lu_nodemap *nodemap;
+ struct obd_export *exp = info->mti_exp;
+ int rc = size;
+
+ ENTRY;
+
+ if (strcmp(name, XATTR_NAME_ACL_ACCESS) == 0 ||
+ strcmp(name, XATTR_NAME_ACL_DEFAULT) == 0) {
+ if (size > info->mti_mdt->mdt_max_ea_size ||
+ (!exp_connect_large_acl(exp) &&
+ size > LUSTRE_POSIX_ACL_MAX_SIZE_OLD))
+ GOTO(out, rc = -ERANGE);
+
+ nodemap = nodemap_get_from_exp(exp);
+ if (IS_ERR(nodemap))
+ GOTO(out, rc = PTR_ERR(nodemap));
+
+ rc = nodemap_map_acl(nodemap, buf, size, tree_type);
+ nodemap_putref(nodemap);
+ if (rc < 0)
+ GOTO(out, rc);
+ }
+out:
+ RETURN(rc);
}
static int mdt_getxattr_all(struct mdt_thread_info *info,
rc = mo_xattr_get(env, next, buf, b);
if (rc < 0)
GOTO(out_shrink, rc);
-
+ rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, b,
+ NODEMAP_FS_TO_CLIENT);
+ if (rc < 0)
+ GOTO(out_shrink, rc);
sizes[eavallens] = rc;
eavallens++;
eavallen += rc;
next = mdt_object_child(info->mti_object);
easize = mdt_getxattr_pack_reply(info);
- if (easize < 0)
- GOTO(out, rc = err_serious(easize));
+ if (easize == -ENODATA)
+ GOTO(out, rc = easize);
+ else if (easize < 0)
+ GOTO(out, rc = err_serious(easize));
repbody = req_capsule_server_get(info->mti_pill, &RMF_MDT_BODY);
LASSERT(repbody != NULL);
valid = info->mti_body->mbo_valid & (OBD_MD_FLXATTR | OBD_MD_FLXATTRLS);
if (valid == OBD_MD_FLXATTR) {
- char *xattr_name = req_capsule_client_get(info->mti_pill,
- &RMF_NAME);
+ const char *xattr_name = req_capsule_client_get(info->mti_pill,
+ &RMF_NAME);
rc = mo_xattr_get(info->mti_env, next, buf, xattr_name);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ rc = mdt_nodemap_map_acl(info, buf->lb_buf, rc, xattr_name,
+ NODEMAP_FS_TO_CLIENT);
} else if (valid == OBD_MD_FLXATTRLS) {
CDEBUG(D_INODE, "listxattr\n");
out:
if (rc >= 0) {
mdt_counter_incr(req, LPROC_MDT_GETXATTR);
+ /* LU-11109: Set OBD_MD_FLXATTR on success so that
+ * newer clients can distinguish between nonexistent
+ * xattrs and zero length values. */
+ repbody->mbo_valid |= OBD_MD_FLXATTR;
repbody->mbo_eadatasize = rc;
rc = 0;
}
return rc;
}
+/* shrink dir layout after migration */
+static int mdt_dir_layout_shrink(struct mdt_thread_info *info)
+{
+ const struct lu_env *env = info->mti_env;
+ struct mdt_device *mdt = info->mti_mdt;
+ struct lu_ucred *uc = mdt_ucred(info);
+ struct mdt_reint_record *rr = &info->mti_rr;
+ struct lmv_user_md *lmu = rr->rr_eadata;
+ __u32 lum_stripe_count = lmu->lum_stripe_count;
+ struct lu_buf *buf = &info->mti_buf;
+ struct lmv_mds_md_v1 *lmv;
+ struct md_attr *ma = &info->mti_attr;
+ struct ldlm_enqueue_info *einfo = &info->mti_einfo[0];
+ struct mdt_object *pobj = NULL;
+ struct mdt_object *obj;
+ struct mdt_lock_handle *lhp = NULL;
+ struct mdt_lock_handle *lhc;
+ int rc;
+
+ ENTRY;
+
+ if (!mdt->mdt_enable_dir_migration)
+ RETURN(-EPERM);
+
+ if (!md_capable(uc, CFS_CAP_SYS_ADMIN) &&
+ uc->uc_gid != mdt->mdt_enable_remote_dir_gid &&
+ mdt->mdt_enable_remote_dir_gid != -1)
+ RETURN(-EPERM);
+
+ /* mti_big_lmm is used to save LMV, but it may be uninitialized. */
+ if (unlikely(!info->mti_big_lmm)) {
+ info->mti_big_lmmsize = lmv_mds_md_size(64, LMV_MAGIC);
+ OBD_ALLOC(info->mti_big_lmm, info->mti_big_lmmsize);
+ if (!info->mti_big_lmm)
+ RETURN(-ENOMEM);
+ }
+
+ obj = mdt_object_find(env, mdt, rr->rr_fid1);
+ if (IS_ERR(obj))
+ RETURN(PTR_ERR(obj));
+
+ /* get parent from PFID */
+ rc = mdt_attr_get_pfid(info, obj, &ma->ma_pfid);
+ if (rc)
+ GOTO(put_obj, rc);
+
+ pobj = mdt_object_find(env, mdt, &ma->ma_pfid);
+ if (IS_ERR(pobj))
+ GOTO(put_obj, rc = PTR_ERR(pobj));
+
+ /* revoke object remote LOOKUP lock */
+ if (mdt_object_remote(pobj)) {
+ rc = mdt_revoke_remote_lookup_lock(info, pobj, obj);
+ if (rc)
+ GOTO(put_pobj, rc);
+ }
+
+ /*
+ * lock parent if dir will be shrunk to 1 stripe, because dir will be
+ * converted to normal directory, as will change dir fid and update
+ * namespace of parent.
+ */
+ lhp = &info->mti_lh[MDT_LH_PARENT];
+ mdt_lock_reg_init(lhp, LCK_PW);
+
+ if (le32_to_cpu(lmu->lum_stripe_count) < 2) {
+ rc = mdt_reint_object_lock(info, pobj, lhp,
+ MDS_INODELOCK_UPDATE, true);
+ if (rc)
+ GOTO(put_pobj, rc);
+ }
+
+ /* lock object */
+ lhc = &info->mti_lh[MDT_LH_CHILD];
+ mdt_lock_reg_init(lhc, LCK_EX);
+ rc = mdt_reint_striped_lock(info, obj, lhc, MDS_INODELOCK_FULL, einfo,
+ true);
+ if (rc)
+ GOTO(unlock_pobj, rc);
+
+ ma->ma_lmv = info->mti_big_lmm;
+ ma->ma_lmv_size = info->mti_big_lmmsize;
+ ma->ma_valid = 0;
+ rc = mdt_stripe_get(info, obj, ma, XATTR_NAME_LMV);
+ if (rc)
+ GOTO(unlock_obj, rc);
+
+ /* user may run 'lfs migrate' multiple times, so it's shrunk already */
+ if (!(ma->ma_valid & MA_LMV))
+ GOTO(unlock_obj, rc = -EALREADY);
+
+ lmv = &ma->ma_lmv->lmv_md_v1;
+
+ /* ditto */
+ if (!(le32_to_cpu(lmv->lmv_hash_type) & LMV_HASH_FLAG_MIGRATION))
+ GOTO(unlock_obj, rc = -EALREADY);
+
+ lum_stripe_count = lmu->lum_stripe_count;
+ if (!lum_stripe_count)
+ lum_stripe_count = cpu_to_le32(1);
+
+ if (lmv->lmv_migrate_offset != lum_stripe_count) {
+ CERROR("%s: "DFID" migrate mdt count mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_migrate_offset, lmu->lum_stripe_count);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (lmv->lmv_master_mdt_index != lmu->lum_stripe_offset) {
+ CERROR("%s: "DFID" migrate mdt index mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_master_mdt_index, lmu->lum_stripe_offset);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ if (lum_stripe_count > 1 &&
+ (lmv->lmv_hash_type & cpu_to_le32(LMV_HASH_TYPE_MASK)) !=
+ lmu->lum_hash_type) {
+ CERROR("%s: "DFID" migrate mdt hash mismatch %u != %u\n",
+ mdt_obd_name(info->mti_mdt), PFID(rr->rr_fid1),
+ lmv->lmv_hash_type, lmu->lum_hash_type);
+ GOTO(unlock_obj, rc = -EINVAL);
+ }
+
+ buf->lb_buf = rr->rr_eadata;
+ buf->lb_len = rr->rr_eadatalen;
+ rc = mo_xattr_set(env, mdt_object_child(obj), buf, XATTR_NAME_LMV, 0);
+ GOTO(unlock_obj, rc);
+
+unlock_obj:
+ mdt_reint_striped_unlock(info, obj, lhc, einfo, rc);
+unlock_pobj:
+ mdt_object_unlock(info, pobj, lhp, rc);
+put_pobj:
+ mdt_object_put(env, pobj);
+put_obj:
+ mdt_object_put(env, obj);
+
+ return rc;
+}
+
int mdt_reint_setxattr(struct mdt_thread_info *info,
struct mdt_lock_handle *unused)
{
struct lu_attr *attr = &info->mti_attr.ma_attr;
struct mdt_object *obj;
struct md_object *child;
- struct obd_export *exp = info->mti_exp;
__u64 valid = attr->la_valid;
const char *xattr_name = rr->rr_name.ln_name;
int xattr_len = rr->rr_eadatalen;
- __u64 lockpart;
+ __u64 lockpart = MDS_INODELOCK_UPDATE;
int rc;
ENTRY;
} else if (strncmp(xattr_name, XATTR_TRUSTED_PREFIX,
sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0) {
+ /* setxattr(LMV) with lum is used to shrink dir layout */
+ if (strcmp(xattr_name, XATTR_NAME_LMV) == 0) {
+ __u32 *magic = rr->rr_eadata;
+
+ /* we don't let to remove LMV? */
+ if (!rr->rr_eadata)
+ GOTO(out, rc = 0);
+
+ if (le32_to_cpu(*magic) == LMV_USER_MAGIC ||
+ le32_to_cpu(*magic) == LMV_USER_MAGIC_SPECIFIC) {
+ rc = mdt_dir_layout_shrink(info);
+ GOTO(out, rc);
+ }
+ }
+
if (!md_capable(mdt_ucred(info), CFS_CAP_SYS_ADMIN))
GOTO(out, rc = -EPERM);
} else if ((valid & OBD_MD_FLXATTR) &&
(strcmp(xattr_name, XATTR_NAME_ACL_ACCESS) == 0 ||
strcmp(xattr_name, XATTR_NAME_ACL_DEFAULT) == 0)) {
- struct lu_nodemap *nodemap;
-
- /* currently lustre limit acl access size */
- if (xattr_len > LUSTRE_POSIX_ACL_MAX_SIZE)
- GOTO(out, rc = -ERANGE);
-
- nodemap = nodemap_get_from_exp(exp);
- if (IS_ERR(nodemap))
- GOTO(out, rc = PTR_ERR(nodemap));
-
- rc = nodemap_map_acl(nodemap, rr->rr_eadata, xattr_len,
- NODEMAP_CLIENT_TO_FS);
- nodemap_putref(nodemap);
+ rc = mdt_nodemap_map_acl(info, rr->rr_eadata, xattr_len,
+ xattr_name, NODEMAP_CLIENT_TO_FS);
if (rc < 0)
GOTO(out, rc);
-
/* ACLs were mapped out, return an error so the user knows */
if (rc != xattr_len)
GOTO(out, rc = -EPERM);
+ } else if ((strlen(xattr_name) > strlen(XATTR_LUSTRE_LOV) + 1) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV,
+ strlen(XATTR_LUSTRE_LOV)) == 0) {
+
+ if (strncmp(xattr_name, XATTR_LUSTRE_LOV".add",
+ strlen(XATTR_LUSTRE_LOV".add")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".set",
+ strlen(XATTR_LUSTRE_LOV".set")) &&
+ strncmp(xattr_name, XATTR_LUSTRE_LOV".del",
+ strlen(XATTR_LUSTRE_LOV".del"))) {
+ CERROR("%s: invalid xattr name: %s\n",
+ mdt_obd_name(info->mti_mdt), xattr_name);
+ GOTO(out, rc = -EINVAL);
+ }
+
+ lockpart |= MDS_INODELOCK_LAYOUT;
}
- lockpart = MDS_INODELOCK_UPDATE;
/* Revoke all clients' lookup lock, since the access
* permissions for this inode is changed when ACL_ACCESS is
* set. This isn't needed for ACL_DEFAULT, since that does
/* This isn't strictly an error, but all current clients
* should set OBD_MD_FLCTIME when setting attributes. */
CWARN("%s: client miss to set OBD_MD_FLCTIME when "
- "setxattr %s: [object "DFID"] [valid "LPU64"]\n",
+ "setxattr %s: [object "DFID"] [valid %llu]\n",
mdt_obd_name(info->mti_mdt), xattr_name,
PFID(rr->rr_fid1), valid);
- attr->la_ctime = cfs_time_current_sec();
+ attr->la_ctime = ktime_get_real_seconds();
}
attr->la_valid = LA_CTIME;
child = mdt_object_child(obj);
ma->ma_attr_flags |= MDS_PERM_BYPASS;
mo_attr_set(env, child, ma);
}
- } else {
- CDEBUG(D_INFO, "valid bits: "LPX64"\n", valid);
- rc = -EINVAL;
- }
- if (rc == 0)
+ } else {
+ CDEBUG(D_INFO, "valid bits: %#llx\n", valid);
+ rc = -EINVAL;
+ }
+
+ if (rc == 0)
mdt_counter_incr(req, LPROC_MDT_SETXATTR);
EXIT;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff