4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 * Directory code for lustre client.
42 #include <linux/pagemap.h>
44 #include <linux/version.h>
45 #include <asm/uaccess.h>
46 #include <linux/buffer_head.h> // for wait_on_buffer
47 #include <linux/pagevec.h>
49 #define DEBUG_SUBSYSTEM S_LLITE
51 #include <lustre/lustre_idl.h>
52 #include <obd_support.h>
53 #include <obd_class.h>
54 #include <lustre_lib.h>
55 #include <lustre/lustre_idl.h>
56 #include <lustre_lite.h>
57 #include <lustre_dlm.h>
58 #include <lustre_fid.h>
59 #include "llite_internal.h"
62 * (new) readdir implementation overview.
64 * Original lustre readdir implementation cached exact copy of raw directory
65 * pages on the client. These pages were indexed in client page cache by
66 * logical offset in the directory file. This design, while very simple and
67 * intuitive had some inherent problems:
69 * . it implies that byte offset to the directory entry serves as a
70 * telldir(3)/seekdir(3) cookie, but that offset is not stable: in
71 * ext3/htree directory entries may move due to splits, and more
74 * . it is incompatible with the design of split directories for cmd3,
75 * that assumes that names are distributed across nodes based on their
76 * hash, and so readdir should be done in hash order.
78 * New readdir implementation does readdir in hash order, and uses hash of a
79 * file name as a telldir/seekdir cookie. This led to number of complications:
81 * . hash is not unique, so it cannot be used to index cached directory
82 * pages on the client (note, that it requires a whole pageful of hash
83 * collided entries to cause two pages to have identical hashes);
85 * . hash is not unique, so it cannot, strictly speaking, be used as an
86 * entry cookie. ext3/htree has the same problem and lustre implementation
87 * mimics their solution: seekdir(hash) positions directory at the first
88 * entry with the given hash.
94 * Client caches directory pages using hash of the first entry as an index. As
95 * noted above hash is not unique, so this solution doesn't work as is:
96 * special processing is needed for "page hash chains" (i.e., sequences of
97 * pages filled with entries all having the same hash value).
99 * First, such chains have to be detected. To this end, server returns to the
100 * client the hash of the first entry on the page next to one returned. When
101 * client detects that this hash is the same as hash of the first entry on the
102 * returned page, page hash collision has to be handled. Pages in the
103 * hash chain, except first one, are termed "overflow pages".
105 * Solution to index uniqueness problem is to not cache overflow
106 * pages. Instead, when page hash collision is detected, all overflow pages
107 * from emerging chain are immediately requested from the server and placed in
108 * a special data structure (struct ll_dir_chain). This data structure is used
109 * by ll_readdir() to process entries from overflow pages. When readdir
110 * invocation finishes, overflow pages are discarded. If page hash collision
111 * chain weren't completely processed, next call to readdir will again detect
112 * page hash collision, again read overflow pages in, process next portion of
113 * entries and again discard the pages. This is not as wasteful as it looks,
114 * because, given reasonable hash, page hash collisions are extremely rare.
116 * 1. directory positioning
118 * When seekdir(hash) is called, original
129 * identification of and access to overflow pages
133 * Page in MDS_READPAGE RPC is packed in LU_PAGE_SIZE, and each page contains
134 * a header lu_dirpage which describes the start/end hash, and whether this
135 * page is empty (contains no dir entry) or hash collide with next page.
136 * After client receives reply, several pages will be integrated into dir page
137 * in PAGE_CACHE_SIZE (if PAGE_CACHE_SIZE greater than LU_PAGE_SIZE), and the
138 * lu_dirpage for this integrated page will be adjusted. See
139 * lmv_adjust_dirpages().
143 * The following three APIs will be used by llite to iterate directory
144 * entries from MDC dir page caches.
146 * ll_dir_entry_start(next) will lookup(return) entry by op_hash_offset.
147 * To avoid extra memory allocation, the @entry will be pointed to
148 * the dir entries in MDC page directly, so these pages can not be released
149 * until the entry has been accessed in ll_readdir(or statahead).
151 * The iterate process will be
153 * ll_dir_entry_start: locate the page in MDC, and return the first entry.
156 * ll_dir_entry_next: return the next entry in the current page, if it reaches
157 * to the end, release current page.
159 * ll_dir_entry_end: release the last page.
161 struct lu_dirent *ll_dir_entry_start(struct inode *dir,
162 struct md_op_data *op_data,
165 struct lu_dirent *entry;
166 struct md_callback cb_op;
169 LASSERT(*ppage == NULL);
170 cb_op.md_blocking_ast = ll_md_blocking_ast;
171 rc = md_read_entry(ll_i2mdexp(dir), op_data, &cb_op, &entry, ppage);
177 struct lu_dirent *ll_dir_entry_next(struct inode *dir,
178 struct md_op_data *op_data,
179 struct lu_dirent *ent,
182 struct lu_dirent *entry;
183 struct md_callback cb_op;
186 LASSERT(*ppage != NULL);
187 cb_op.md_blocking_ast = ll_md_blocking_ast;
188 op_data->op_hash_offset = le64_to_cpu(ent->lde_hash);
190 page_cache_release(*ppage);
192 rc = md_read_entry(ll_i2mdexp(dir), op_data, &cb_op, &entry, ppage);
198 int ll_dir_read(struct inode *inode, struct md_op_data *op_data,
199 void *cookie, filldir_t filldir)
201 struct ll_sb_info *sbi = ll_i2sbi(inode);
202 struct ll_dir_chain chain;
203 struct lu_dirent *ent;
204 int api32 = ll_need_32bit_api(sbi);
205 int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
208 __u64 hash = MDS_DIR_END_OFF;
209 __u64 last_hash = MDS_DIR_END_OFF;
210 struct page *page = NULL;
213 ll_dir_chain_init(&chain);
214 for (ent = ll_dir_entry_start(inode, op_data, &page);
215 ent != NULL && !IS_ERR(ent) && !done;
216 ent = ll_dir_entry_next(inode, op_data, ent, &page)) {
223 hash = le64_to_cpu(ent->lde_hash);
224 if (hash < op_data->op_hash_offset)
226 * Skip until we find target hash
230 namelen = le16_to_cpu(ent->lde_namelen);
241 fid_le_to_cpu(&fid, &ent->lde_fid);
242 ino = cl_fid_build_ino(&fid, api32);
243 type = ll_dirent_type_get(ent);
244 /* For 'll_nfs_get_name_filldir()', it will try
245 * to access the 'ent' through its 'lde_name',
246 * so the parameter 'name' for 'filldir()' must
247 * be part of the 'ent'. */
248 done = filldir(cookie, ent->lde_name, namelen, lhash,
251 if (op_data->op_hash_offset != MDS_DIR_END_OFF)
252 op_data->op_hash_offset = last_hash;
264 page_cache_release(page);
267 ll_dir_chain_fini(&chain);
271 static int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
273 struct inode *inode = filp->f_dentry->d_inode;
274 struct ll_file_data *lfd = LUSTRE_FPRIVATE(filp);
275 struct ll_sb_info *sbi = ll_i2sbi(inode);
276 __u64 pos = lfd->lfd_pos;
277 int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
278 int api32 = ll_need_32bit_api(sbi);
279 struct md_op_data *op_data;
281 #ifdef HAVE_TOUCH_ATIME_1ARG
291 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) pos/size"
292 "%lu/%llu 32bit_api %d\n", PFID(ll_inode2fid(inode)),
293 inode, (unsigned long)pos, i_size_read(inode), api32);
295 if (pos == MDS_DIR_END_OFF)
301 op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0,
302 LUSTRE_OPC_ANY, inode);
304 GOTO(out, rc = PTR_ERR(op_data));
306 op_data->op_hash_offset = pos;
307 op_data->op_max_pages = sbi->ll_md_brw_size >> PAGE_CACHE_SHIFT;
308 rc = ll_dir_read(inode, op_data, cookie, filldir);
310 lfd->lfd_pos = op_data->op_hash_offset;
312 if (pos == MDS_DIR_END_OFF) {
314 filp->f_pos = LL_DIR_END_OFF_32BIT;
316 filp->f_pos = LL_DIR_END_OFF;
319 filp->f_pos = op_data->op_hash_offset >> 32;
321 filp->f_pos = op_data->op_hash_offset;
324 ll_finish_md_op_data(op_data);
325 filp->f_version = inode->i_version;
326 #ifdef HAVE_TOUCH_ATIME_1ARG
327 #ifdef HAVE_F_PATH_MNT
328 path.mnt = filp->f_path.mnt;
330 path.mnt = filp->f_vfsmnt;
332 path.dentry = filp->f_dentry;
335 touch_atime(filp->f_vfsmnt, filp->f_dentry);
340 ll_stats_ops_tally(sbi, LPROC_LL_READDIR, 1);
345 int ll_send_mgc_param(struct obd_export *mgc, char *string)
347 struct mgs_send_param *msp;
354 strncpy(msp->mgs_param, string, MGS_PARAM_MAXLEN);
355 rc = obd_set_info_async(NULL, mgc, sizeof(KEY_SET_INFO), KEY_SET_INFO,
356 sizeof(struct mgs_send_param), msp, NULL);
358 CERROR("Failed to set parameter: %d\n", rc);
364 static int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
365 const char *filename)
367 struct ptlrpc_request *request = NULL;
368 struct md_op_data *op_data;
369 struct ll_sb_info *sbi = ll_i2sbi(dir);
374 if (unlikely(lump->lum_magic != LMV_USER_MAGIC))
377 if (lump->lum_stripe_offset == (__u32)-1) {
380 mdtidx = ll_get_mdt_idx(dir);
384 lump->lum_stripe_offset = mdtidx;
387 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) name %s"
388 "stripe_offset %d, stripe_count: %u\n",
389 PFID(ll_inode2fid(dir)), dir, filename,
390 (int)lump->lum_stripe_offset, lump->lum_stripe_count);
392 if (lump->lum_magic != cpu_to_le32(LMV_USER_MAGIC))
393 lustre_swab_lmv_user_md(lump);
395 mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
396 op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
397 strlen(filename), mode, LUSTRE_OPC_MKDIR,
400 GOTO(err_exit, err = PTR_ERR(op_data));
402 op_data->op_cli_flags |= CLI_SET_MEA;
403 err = md_create(sbi->ll_md_exp, op_data, lump, sizeof(*lump), mode,
404 current_fsuid(), current_fsgid(),
405 cfs_curproc_cap_pack(), 0, &request);
406 ll_finish_md_op_data(op_data);
410 ptlrpc_req_finished(request);
414 int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
417 struct ll_sb_info *sbi = ll_i2sbi(inode);
418 struct md_op_data *op_data;
419 struct ptlrpc_request *req = NULL;
421 struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
422 struct obd_device *mgc = lsi->lsi_mgc;
428 * This is coming from userspace, so should be in
429 * local endian. But the MDS would like it in little
430 * endian, so we swab it before we send it.
432 switch (lump->lmm_magic) {
433 case LOV_USER_MAGIC_V1: {
434 if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V1))
435 lustre_swab_lov_user_md_v1(lump);
436 lum_size = sizeof(struct lov_user_md_v1);
439 case LOV_USER_MAGIC_V3: {
440 if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V3))
441 lustre_swab_lov_user_md_v3(
442 (struct lov_user_md_v3 *)lump);
443 lum_size = sizeof(struct lov_user_md_v3);
447 CDEBUG(D_IOCTL, "bad userland LOV MAGIC:"
448 " %#08x != %#08x nor %#08x\n",
449 lump->lmm_magic, LOV_USER_MAGIC_V1,
455 lum_size = sizeof(struct lov_user_md_v1);
458 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
459 LUSTRE_OPC_ANY, NULL);
461 RETURN(PTR_ERR(op_data));
463 /* swabbing is done in lov_setstripe() on server side */
464 rc = md_setattr(sbi->ll_md_exp, op_data, lump, lum_size,
465 NULL, 0, &req, NULL);
466 ll_finish_md_op_data(op_data);
467 ptlrpc_req_finished(req);
469 if (rc != -EPERM && rc != -EACCES)
470 CERROR("mdc_setattr fails: rc = %d\n", rc);
473 /* In the following we use the fact that LOV_USER_MAGIC_V1 and
474 LOV_USER_MAGIC_V3 have the same initial fields so we do not
475 need the make the distiction between the 2 versions */
476 if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
480 OBD_ALLOC(param, MGS_PARAM_MAXLEN);
482 GOTO(end, rc = -ENOMEM);
485 /* Get fsname and assume devname to be -MDT0000. */
486 ll_get_fsname(inode->i_sb, buf, MTI_NAME_MAXLEN);
487 strcat(buf, "-MDT0000.lov");
490 /* Set root stripesize */
491 sprintf(buf, ".stripesize=%u",
492 lump ? le32_to_cpu(lump->lmm_stripe_size) : 0);
493 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
497 /* Set root stripecount */
498 sprintf(buf, ".stripecount=%hd",
499 lump ? le16_to_cpu(lump->lmm_stripe_count) : 0);
500 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
504 /* Set root stripeoffset */
505 sprintf(buf, ".stripeoffset=%hd",
506 lump ? le16_to_cpu(lump->lmm_stripe_offset) :
507 (typeof(lump->lmm_stripe_offset))(-1));
508 rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
512 OBD_FREE(param, MGS_PARAM_MAXLEN);
517 int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
518 int *lmm_size, struct ptlrpc_request **request)
520 struct ll_sb_info *sbi = ll_i2sbi(inode);
521 struct mdt_body *body;
522 struct lov_mds_md *lmm = NULL;
523 struct ptlrpc_request *req = NULL;
525 struct md_op_data *op_data;
527 rc = ll_get_max_mdsize(sbi, &lmmsize);
531 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
532 0, lmmsize, LUSTRE_OPC_ANY,
535 RETURN(PTR_ERR(op_data));
537 op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
538 rc = md_getattr(sbi->ll_md_exp, op_data, &req);
539 ll_finish_md_op_data(op_data);
541 CDEBUG(D_INFO, "md_getattr failed on inode "
542 DFID": rc %d\n", PFID(ll_inode2fid(inode)), rc);
546 body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
547 LASSERT(body != NULL);
549 lmmsize = body->eadatasize;
551 if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
553 GOTO(out, rc = -ENODATA);
556 lmm = req_capsule_server_sized_get(&req->rq_pill,
557 &RMF_MDT_MD, lmmsize);
558 LASSERT(lmm != NULL);
561 * This is coming from the MDS, so is probably in
562 * little endian. We convert it to host endian before
563 * passing it to userspace.
565 /* We don't swab objects for directories */
566 switch (le32_to_cpu(lmm->lmm_magic)) {
568 if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
569 lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
572 if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
573 lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
576 CERROR("unknown magic: %lX\n", (unsigned long)lmm->lmm_magic);
587 * Get MDT index for the inode.
589 int ll_get_mdt_idx(struct inode *inode)
591 struct ll_sb_info *sbi = ll_i2sbi(inode);
592 struct md_op_data *op_data;
596 op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0,
597 0, LUSTRE_OPC_ANY, NULL);
599 RETURN(PTR_ERR(op_data));
601 op_data->op_flags |= MF_GET_MDT_IDX;
602 rc = md_getattr(sbi->ll_md_exp, op_data, NULL);
603 mdtidx = op_data->op_mds;
604 ll_finish_md_op_data(op_data);
606 CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
613 * Generic handler to do any pre-copy work.
615 * It send a first hsm_progress (with extent length == 0) to coordinator as a
616 * first information for it that real work has started.
618 * Moreover, for a ARCHIVE request, it will sample the file data version and
619 * store it in \a copy.
621 * \return 0 on success.
623 static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
625 struct ll_sb_info *sbi = ll_s2sbi(sb);
626 struct hsm_progress_kernel hpk;
630 /* Forge a hsm_progress based on data from copy. */
631 hpk.hpk_fid = copy->hc_hai.hai_fid;
632 hpk.hpk_cookie = copy->hc_hai.hai_cookie;
633 hpk.hpk_extent.offset = copy->hc_hai.hai_extent.offset;
634 hpk.hpk_extent.length = 0;
637 hpk.hpk_data_version = 0;
640 /* For archive request, we need to read the current file version. */
641 if (copy->hc_hai.hai_action == HSMA_ARCHIVE) {
643 __u64 data_version = 0;
645 /* Get inode for this fid */
646 inode = search_inode_for_lustre(sb, ©->hc_hai.hai_fid);
648 hpk.hpk_flags |= HP_FLAG_RETRY;
649 /* hpk_errval is >= 0 */
650 hpk.hpk_errval = -PTR_ERR(inode);
651 GOTO(progress, rc = PTR_ERR(inode));
654 /* Read current file data version */
655 rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
658 CDEBUG(D_HSM, "Could not read file data version of "
659 DFID" (rc = %d). Archive request ("
660 LPX64") could not be done.\n",
661 PFID(©->hc_hai.hai_fid), rc,
662 copy->hc_hai.hai_cookie);
663 hpk.hpk_flags |= HP_FLAG_RETRY;
664 /* hpk_errval must be >= 0 */
665 hpk.hpk_errval = -rc;
669 /* Store it the hsm_copy for later copytool use.
670 * Always modified even if no lsm. */
671 copy->hc_data_version = data_version;
675 /* On error, the request should be considered as completed */
676 if (hpk.hpk_errval > 0)
677 hpk.hpk_flags |= HP_FLAG_COMPLETED;
678 rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
685 * Generic handler to do any post-copy work.
687 * It will send the last hsm_progress update to coordinator to inform it
688 * that copy is finished and whether it was successful or not.
691 * - for ARCHIVE request, it will sample the file data version and compare it
692 * with the version saved in ll_ioc_copy_start(). If they do not match, copy
693 * will be considered as failed.
694 * - for RESTORE request, it will sample the file data version and send it to
695 * coordinator which is useful if the file was imported as 'released'.
697 * \return 0 on success.
699 static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
701 struct ll_sb_info *sbi = ll_s2sbi(sb);
702 struct hsm_progress_kernel hpk;
706 /* If you modify the logic here, also check llapi_hsm_copy_end(). */
707 /* Take care: copy->hc_hai.hai_action, len, gid and data are not
708 * initialized if copy_end was called with copy == NULL.
711 /* Forge a hsm_progress based on data from copy. */
712 hpk.hpk_fid = copy->hc_hai.hai_fid;
713 hpk.hpk_cookie = copy->hc_hai.hai_cookie;
714 hpk.hpk_extent = copy->hc_hai.hai_extent;
715 hpk.hpk_flags = copy->hc_flags | HP_FLAG_COMPLETED;
716 hpk.hpk_errval = copy->hc_errval;
717 hpk.hpk_data_version = 0;
719 /* For archive request, we need to check the file data was not changed.
721 * For restore request, we need to send the file data version, this is
722 * useful when the file was created using hsm_import.
724 if (((copy->hc_hai.hai_action == HSMA_ARCHIVE) ||
725 (copy->hc_hai.hai_action == HSMA_RESTORE)) &&
726 (copy->hc_errval == 0)) {
728 __u64 data_version = 0;
730 /* Get lsm for this fid */
731 inode = search_inode_for_lustre(sb, ©->hc_hai.hai_fid);
733 hpk.hpk_flags |= HP_FLAG_RETRY;
734 /* hpk_errval must be >= 0 */
735 hpk.hpk_errval = -PTR_ERR(inode);
736 GOTO(progress, rc = PTR_ERR(inode));
739 rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
742 CDEBUG(D_HSM, "Could not read file data version. "
743 "Request could not be confirmed.\n");
744 if (hpk.hpk_errval == 0)
745 hpk.hpk_errval = -rc;
749 /* Store it the hsm_copy for later copytool use.
750 * Always modified even if no lsm. */
751 hpk.hpk_data_version = data_version;
753 /* File could have been stripped during archiving, so we need
754 * to check anyway. */
755 if ((copy->hc_hai.hai_action == HSMA_ARCHIVE) &&
756 (copy->hc_data_version != data_version)) {
757 CDEBUG(D_HSM, "File data version mismatched. "
758 "File content was changed during archiving. "
759 DFID", start:"LPX64" current:"LPX64"\n",
760 PFID(©->hc_hai.hai_fid),
761 copy->hc_data_version, data_version);
762 /* File was changed, send error to cdt. Do not ask for
763 * retry because if a file is modified frequently,
764 * the cdt will loop on retried archive requests.
765 * The policy engine will ask for a new archive later
766 * when the file will not be modified for some tunable
768 /* we do not notify caller */
769 hpk.hpk_flags &= ~HP_FLAG_RETRY;
770 /* hpk_errval must be >= 0 */
771 hpk.hpk_errval = EBUSY;
777 rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
784 static int copy_and_ioctl(int cmd, struct obd_export *exp,
785 const void __user *data, size_t size)
790 OBD_ALLOC(copy, size);
794 if (copy_from_user(copy, data, size)) {
799 rc = obd_iocontrol(cmd, exp, size, copy, NULL);
801 OBD_FREE(copy, size);
806 static int quotactl_ioctl(struct ll_sb_info *sbi, struct if_quotactl *qctl)
808 int cmd = qctl->qc_cmd;
809 int type = qctl->qc_type;
810 int id = qctl->qc_id;
811 int valid = qctl->qc_valid;
816 case LUSTRE_Q_INVALIDATE:
817 case LUSTRE_Q_FINVALIDATE:
822 if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
823 sbi->ll_flags & LL_SBI_RMT_CLIENT)
827 if (((type == USRQUOTA && current_euid() != id) ||
828 (type == GRPQUOTA && !in_egroup_p(id))) &&
829 (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
830 sbi->ll_flags & LL_SBI_RMT_CLIENT))
836 CERROR("unsupported quotactl op: %#x\n", cmd);
840 if (valid != QC_GENERAL) {
841 if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
844 if (cmd == Q_GETINFO)
845 qctl->qc_cmd = Q_GETOINFO;
846 else if (cmd == Q_GETQUOTA)
847 qctl->qc_cmd = Q_GETOQUOTA;
853 rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_md_exp,
854 sizeof(*qctl), qctl, NULL);
857 rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_dt_exp,
858 sizeof(*qctl), qctl, NULL);
861 rc = obd_iocontrol(OBD_IOC_QUOTACTL, sbi->ll_md_exp,
862 sizeof(*qctl), qctl, NULL);
864 rc = obd_iocontrol(OBD_IOC_QUOTACTL,
866 sizeof(*qctl), qctl, NULL);
878 struct obd_quotactl *oqctl;
880 OBD_ALLOC_PTR(oqctl);
884 QCTL_COPY(oqctl, qctl);
885 rc = obd_quotactl(sbi->ll_md_exp, oqctl);
887 if (rc != -EALREADY && cmd == Q_QUOTAON) {
888 oqctl->qc_cmd = Q_QUOTAOFF;
889 obd_quotactl(sbi->ll_md_exp, oqctl);
894 /* If QIF_SPACE is not set, client should collect the
895 * space usage from OSSs by itself */
896 if (cmd == Q_GETQUOTA &&
897 !(oqctl->qc_dqblk.dqb_valid & QIF_SPACE) &&
898 !oqctl->qc_dqblk.dqb_curspace) {
899 struct obd_quotactl *oqctl_tmp;
901 OBD_ALLOC_PTR(oqctl_tmp);
902 if (oqctl_tmp == NULL)
903 GOTO(out, rc = -ENOMEM);
905 oqctl_tmp->qc_cmd = Q_GETOQUOTA;
906 oqctl_tmp->qc_id = oqctl->qc_id;
907 oqctl_tmp->qc_type = oqctl->qc_type;
909 /* collect space usage from OSTs */
910 oqctl_tmp->qc_dqblk.dqb_curspace = 0;
911 rc = obd_quotactl(sbi->ll_dt_exp, oqctl_tmp);
912 if (!rc || rc == -EREMOTEIO) {
913 oqctl->qc_dqblk.dqb_curspace =
914 oqctl_tmp->qc_dqblk.dqb_curspace;
915 oqctl->qc_dqblk.dqb_valid |= QIF_SPACE;
918 /* collect space & inode usage from MDTs */
919 oqctl_tmp->qc_dqblk.dqb_curspace = 0;
920 oqctl_tmp->qc_dqblk.dqb_curinodes = 0;
921 rc = obd_quotactl(sbi->ll_md_exp, oqctl_tmp);
922 if (!rc || rc == -EREMOTEIO) {
923 oqctl->qc_dqblk.dqb_curspace +=
924 oqctl_tmp->qc_dqblk.dqb_curspace;
925 oqctl->qc_dqblk.dqb_curinodes =
926 oqctl_tmp->qc_dqblk.dqb_curinodes;
927 oqctl->qc_dqblk.dqb_valid |= QIF_INODES;
929 oqctl->qc_dqblk.dqb_valid &= ~QIF_SPACE;
932 OBD_FREE_PTR(oqctl_tmp);
935 QCTL_COPY(qctl, oqctl);
943 ll_getname(const char __user *filename)
946 char *tmp = __getname();
949 return ERR_PTR(-ENOMEM);
951 len = strncpy_from_user(tmp, filename, PATH_MAX);
954 else if (len > PATH_MAX)
964 #define ll_putname(filename) __putname(filename)
966 static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
968 struct inode *inode = file->f_dentry->d_inode;
969 struct ll_sb_info *sbi = ll_i2sbi(inode);
970 struct obd_ioctl_data *data;
974 CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), cmd=%#x\n",
975 PFID(ll_inode2fid(inode)), inode, cmd);
977 /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
978 if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
981 ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1);
983 case FSFILT_IOC_GETFLAGS:
984 case FSFILT_IOC_SETFLAGS:
985 RETURN(ll_iocontrol(inode, file, cmd, arg));
986 case FSFILT_IOC_GETVERSION_OLD:
987 case FSFILT_IOC_GETVERSION:
988 RETURN(put_user(inode->i_generation, (int *)arg));
989 /* We need to special case any other ioctls we want to handle,
990 * to send them to the MDS/OST as appropriate and to properly
991 * network encode the arg field.
992 case FSFILT_IOC_SETVERSION_OLD:
993 case FSFILT_IOC_SETVERSION:
995 case LL_IOC_GET_MDTIDX: {
998 mdtidx = ll_get_mdt_idx(inode);
1002 if (put_user((int)mdtidx, (int*)arg))
1007 case IOC_MDC_LOOKUP: {
1008 struct ptlrpc_request *request = NULL;
1009 int namelen, len = 0;
1012 struct md_op_data *op_data;
1014 rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
1019 filename = data->ioc_inlbuf1;
1020 namelen = strlen(filename);
1023 CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
1024 GOTO(out_free, rc = -EINVAL);
1027 op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, namelen,
1028 0, LUSTRE_OPC_ANY, NULL);
1029 if (IS_ERR(op_data))
1030 GOTO(out_free, rc = PTR_ERR(op_data));
1032 op_data->op_valid = OBD_MD_FLID;
1033 rc = md_getattr_name(sbi->ll_md_exp, op_data, &request);
1034 ll_finish_md_op_data(op_data);
1036 CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
1039 ptlrpc_req_finished(request);
1042 obd_ioctl_freedata(buf, len);
1045 case LL_IOC_LMV_SETSTRIPE: {
1046 struct lmv_user_md *lum;
1054 rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
1059 if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
1060 data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0)
1061 GOTO(lmv_out_free, rc = -EINVAL);
1063 filename = data->ioc_inlbuf1;
1064 namelen = data->ioc_inllen1;
1067 CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
1068 GOTO(lmv_out_free, rc = -EINVAL);
1070 lum = (struct lmv_user_md *)data->ioc_inlbuf2;
1071 lumlen = data->ioc_inllen2;
1073 if (lum->lum_magic != LMV_USER_MAGIC ||
1074 lumlen != sizeof(*lum)) {
1075 CERROR("%s: wrong lum magic %x or size %d: rc = %d\n",
1076 filename, lum->lum_magic, lumlen, -EFAULT);
1077 GOTO(lmv_out_free, rc = -EINVAL);
1081 * ll_dir_setdirstripe will be used to set dir stripe
1082 * mdc_create--->mdt_reint_create (with dirstripe)
1084 rc = ll_dir_setdirstripe(inode, lum, filename);
1086 obd_ioctl_freedata(buf, len);
1090 case LL_IOC_LOV_SETSTRIPE: {
1091 struct lov_user_md_v3 lumv3;
1092 struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
1093 struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg;
1094 struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg;
1096 int set_default = 0;
1098 LASSERT(sizeof(lumv3) == sizeof(*lumv3p));
1099 LASSERT(sizeof(lumv3.lmm_objects[0]) ==
1100 sizeof(lumv3p->lmm_objects[0]));
1101 /* first try with v1 which is smaller than v3 */
1102 if (copy_from_user(lumv1, lumv1p, sizeof(*lumv1)))
1105 if ((lumv1->lmm_magic == LOV_USER_MAGIC_V3) ) {
1106 if (copy_from_user(&lumv3, lumv3p, sizeof(lumv3)))
1110 if (inode->i_sb->s_root == file->f_dentry)
1113 /* in v1 and v3 cases lumv1 points to data */
1114 rc = ll_dir_setstripe(inode, lumv1, set_default);
1118 case LL_IOC_LMV_GETSTRIPE: {
1119 struct lmv_user_md *lump = (struct lmv_user_md *)arg;
1120 struct lmv_user_md lum;
1121 struct lmv_user_md *tmp;
1126 if (copy_from_user(&lum, lump, sizeof(struct lmv_user_md)))
1129 if (lum.lum_magic != LMV_MAGIC_V1)
1132 lum_size = lmv_user_md_size(1, LMV_MAGIC_V1);
1133 OBD_ALLOC(tmp, lum_size);
1135 GOTO(free_lmv, rc = -ENOMEM);
1137 memcpy(tmp, &lum, sizeof(lum));
1138 tmp->lum_stripe_count = 1;
1139 mdtindex = ll_get_mdt_idx(inode);
1141 GOTO(free_lmv, rc = -ENOMEM);
1143 tmp->lum_stripe_offset = mdtindex;
1144 tmp->lum_objects[0].lum_mds = mdtindex;
1145 memcpy(&tmp->lum_objects[0].lum_fid, ll_inode2fid(inode),
1146 sizeof(struct lu_fid));
1147 if (copy_to_user((void *)arg, tmp, lum_size))
1148 GOTO(free_lmv, rc = -EFAULT);
1151 OBD_FREE(tmp, lum_size);
1154 case LL_IOC_REMOVE_ENTRY: {
1155 char *filename = NULL;
1159 /* Here is a little hack to avoid sending REINT_RMENTRY to
1160 * unsupported server, which might crash the server(LU-2730),
1161 * Because both LVB_TYPE and REINT_RMENTRY will be supported
1162 * on 2.4, we use OBD_CONNECT_LVB_TYPE to detect whether the
1163 * server will support REINT_RMENTRY XXX*/
1164 if (!(exp_connect_flags(sbi->ll_md_exp) & OBD_CONNECT_LVB_TYPE))
1167 filename = ll_getname((const char *)arg);
1168 if (IS_ERR(filename))
1169 RETURN(PTR_ERR(filename));
1171 namelen = strlen(filename);
1173 GOTO(out_rmdir, rc = -EINVAL);
1175 rc = ll_rmdir_entry(inode, filename, namelen);
1178 ll_putname(filename);
1181 case LL_IOC_LOV_SWAP_LAYOUTS:
1183 case LL_IOC_OBD_STATFS:
1184 RETURN(ll_obd_statfs(inode, (void *)arg));
1185 case LL_IOC_LOV_GETSTRIPE:
1186 case LL_IOC_MDC_GETINFO:
1187 case IOC_MDC_GETFILEINFO:
1188 case IOC_MDC_GETFILESTRIPE: {
1189 struct ptlrpc_request *request = NULL;
1190 struct lov_user_md *lump;
1191 struct lov_mds_md *lmm = NULL;
1192 struct mdt_body *body;
1193 char *filename = NULL;
1196 if (cmd == IOC_MDC_GETFILEINFO ||
1197 cmd == IOC_MDC_GETFILESTRIPE) {
1198 filename = ll_getname((const char *)arg);
1199 if (IS_ERR(filename))
1200 RETURN(PTR_ERR(filename));
1202 rc = ll_lov_getstripe_ea_info(inode, filename, &lmm,
1203 &lmmsize, &request);
1205 rc = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
1209 body = req_capsule_server_get(&request->rq_pill,
1211 LASSERT(body != NULL);
1217 if (rc == -ENODATA && (cmd == IOC_MDC_GETFILEINFO ||
1218 cmd == LL_IOC_MDC_GETINFO))
1219 GOTO(skip_lmm, rc = 0);
1224 if (cmd == IOC_MDC_GETFILESTRIPE ||
1225 cmd == LL_IOC_LOV_GETSTRIPE) {
1226 lump = (struct lov_user_md *)arg;
1228 struct lov_user_mds_data *lmdp;
1229 lmdp = (struct lov_user_mds_data *)arg;
1230 lump = &lmdp->lmd_lmm;
1232 if (copy_to_user(lump, lmm, lmmsize)) {
1233 if (copy_to_user(lump, lmm, sizeof(*lump)))
1234 GOTO(out_req, rc = -EFAULT);
1238 if (cmd == IOC_MDC_GETFILEINFO || cmd == LL_IOC_MDC_GETINFO) {
1239 struct lov_user_mds_data *lmdp;
1242 st.st_dev = inode->i_sb->s_dev;
1243 st.st_mode = body->mode;
1244 st.st_nlink = body->nlink;
1245 st.st_uid = body->uid;
1246 st.st_gid = body->gid;
1247 st.st_rdev = body->rdev;
1248 st.st_size = body->size;
1249 st.st_blksize = PAGE_CACHE_SIZE;
1250 st.st_blocks = body->blocks;
1251 st.st_atime = body->atime;
1252 st.st_mtime = body->mtime;
1253 st.st_ctime = body->ctime;
1254 st.st_ino = inode->i_ino;
1256 lmdp = (struct lov_user_mds_data *)arg;
1257 if (copy_to_user(&lmdp->lmd_st, &st, sizeof(st)))
1258 GOTO(out_req, rc = -EFAULT);
1263 ptlrpc_req_finished(request);
1265 ll_putname(filename);
1268 case IOC_LOV_GETINFO: {
1269 struct lov_user_mds_data *lumd;
1270 struct lov_stripe_md *lsm;
1271 struct lov_user_md *lum;
1272 struct lov_mds_md *lmm;
1276 lumd = (struct lov_user_mds_data *)arg;
1277 lum = &lumd->lmd_lmm;
1279 rc = ll_get_max_mdsize(sbi, &lmmsize);
1283 OBD_ALLOC_LARGE(lmm, lmmsize);
1287 if (copy_from_user(lmm, lum, lmmsize))
1288 GOTO(free_lmm, rc = -EFAULT);
1290 switch (lmm->lmm_magic) {
1291 case LOV_USER_MAGIC_V1:
1292 if (LOV_USER_MAGIC_V1 == cpu_to_le32(LOV_USER_MAGIC_V1))
1294 /* swab objects first so that stripes num will be sane */
1295 lustre_swab_lov_user_md_objects(
1296 ((struct lov_user_md_v1 *)lmm)->lmm_objects,
1297 ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count);
1298 lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
1300 case LOV_USER_MAGIC_V3:
1301 if (LOV_USER_MAGIC_V3 == cpu_to_le32(LOV_USER_MAGIC_V3))
1303 /* swab objects first so that stripes num will be sane */
1304 lustre_swab_lov_user_md_objects(
1305 ((struct lov_user_md_v3 *)lmm)->lmm_objects,
1306 ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count);
1307 lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
1310 GOTO(free_lmm, rc = -EINVAL);
1313 rc = obd_unpackmd(sbi->ll_dt_exp, &lsm, lmm, lmmsize);
1315 GOTO(free_lmm, rc = -ENOMEM);
1317 /* Perform glimpse_size operation. */
1318 memset(&st, 0, sizeof(st));
1320 rc = ll_glimpse_ioctl(sbi, lsm, &st);
1324 if (copy_to_user(&lumd->lmd_st, &st, sizeof(st)))
1325 GOTO(free_lsm, rc = -EFAULT);
1329 obd_free_memmd(sbi->ll_dt_exp, &lsm);
1331 OBD_FREE_LARGE(lmm, lmmsize);
1334 case OBD_IOC_LLOG_CATINFO: {
1335 RETURN(-EOPNOTSUPP);
1337 case OBD_IOC_QUOTACHECK: {
1338 struct obd_quotactl *oqctl;
1341 if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
1342 sbi->ll_flags & LL_SBI_RMT_CLIENT)
1345 OBD_ALLOC_PTR(oqctl);
1348 oqctl->qc_type = arg;
1349 rc = obd_quotacheck(sbi->ll_md_exp, oqctl);
1351 CDEBUG(D_INFO, "md_quotacheck failed: rc %d\n", rc);
1355 rc = obd_quotacheck(sbi->ll_dt_exp, oqctl);
1357 CDEBUG(D_INFO, "obd_quotacheck failed: rc %d\n", rc);
1359 OBD_FREE_PTR(oqctl);
1362 case OBD_IOC_POLL_QUOTACHECK: {
1363 struct if_quotacheck *check;
1365 if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
1366 sbi->ll_flags & LL_SBI_RMT_CLIENT)
1369 OBD_ALLOC_PTR(check);
1373 rc = obd_iocontrol(cmd, sbi->ll_md_exp, 0, (void *)check,
1376 CDEBUG(D_QUOTA, "mdc ioctl %d failed: %d\n", cmd, rc);
1377 if (copy_to_user((void *)arg, check,
1379 CDEBUG(D_QUOTA, "copy_to_user failed\n");
1383 rc = obd_iocontrol(cmd, sbi->ll_dt_exp, 0, (void *)check,
1386 CDEBUG(D_QUOTA, "osc ioctl %d failed: %d\n", cmd, rc);
1387 if (copy_to_user((void *)arg, check,
1389 CDEBUG(D_QUOTA, "copy_to_user failed\n");
1393 OBD_FREE_PTR(check);
1396 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0)
1397 case LL_IOC_QUOTACTL_18: {
1398 /* copy the old 1.x quota struct for internal use, then copy
1399 * back into old format struct. For 1.8 compatibility. */
1400 struct if_quotactl_18 *qctl_18;
1401 struct if_quotactl *qctl_20;
1403 OBD_ALLOC_PTR(qctl_18);
1407 OBD_ALLOC_PTR(qctl_20);
1409 GOTO(out_quotactl_18, rc = -ENOMEM);
1411 if (copy_from_user(qctl_18, (void *)arg, sizeof(*qctl_18)))
1412 GOTO(out_quotactl_20, rc = -ENOMEM);
1414 QCTL_COPY(qctl_20, qctl_18);
1415 qctl_20->qc_idx = 0;
1417 /* XXX: dqb_valid was borrowed as a flag to mark that
1418 * only mds quota is wanted */
1419 if (qctl_18->qc_cmd == Q_GETQUOTA &&
1420 qctl_18->qc_dqblk.dqb_valid) {
1421 qctl_20->qc_valid = QC_MDTIDX;
1422 qctl_20->qc_dqblk.dqb_valid = 0;
1423 } else if (qctl_18->obd_uuid.uuid[0] != '\0') {
1424 qctl_20->qc_valid = QC_UUID;
1425 qctl_20->obd_uuid = qctl_18->obd_uuid;
1427 qctl_20->qc_valid = QC_GENERAL;
1430 rc = quotactl_ioctl(sbi, qctl_20);
1433 QCTL_COPY(qctl_18, qctl_20);
1434 qctl_18->obd_uuid = qctl_20->obd_uuid;
1436 if (copy_to_user((void *)arg, qctl_18,
1442 OBD_FREE_PTR(qctl_20);
1444 OBD_FREE_PTR(qctl_18);
1448 #warning "remove old LL_IOC_QUOTACTL_18 compatibility code"
1449 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0) */
1450 case LL_IOC_QUOTACTL: {
1451 struct if_quotactl *qctl;
1453 OBD_ALLOC_PTR(qctl);
1457 if (copy_from_user(qctl, (void *)arg, sizeof(*qctl)))
1458 GOTO(out_quotactl, rc = -EFAULT);
1460 rc = quotactl_ioctl(sbi, qctl);
1462 if (rc == 0 && copy_to_user((void *)arg, qctl, sizeof(*qctl)))
1469 case OBD_IOC_GETDTNAME:
1470 case OBD_IOC_GETMDNAME:
1471 RETURN(ll_get_obd_name(inode, cmd, arg));
1472 case LL_IOC_FLUSHCTX:
1473 RETURN(ll_flush_ctx(inode));
1474 #ifdef CONFIG_FS_POSIX_ACL
1475 case LL_IOC_RMTACL: {
1476 if (sbi->ll_flags & LL_SBI_RMT_CLIENT &&
1477 inode == inode->i_sb->s_root->d_inode) {
1478 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1480 LASSERT(fd != NULL);
1481 rc = rct_add(&sbi->ll_rct, current_pid(), arg);
1483 fd->fd_flags |= LL_FILE_RMTACL;
1489 case LL_IOC_GETOBDCOUNT: {
1491 struct obd_export *exp;
1493 if (copy_from_user(&count, (int *)arg, sizeof(int)))
1496 /* get ost count when count is zero, get mdt count otherwise */
1497 exp = count ? sbi->ll_md_exp : sbi->ll_dt_exp;
1498 vallen = sizeof(count);
1499 rc = obd_get_info(NULL, exp, sizeof(KEY_TGT_COUNT),
1500 KEY_TGT_COUNT, &vallen, &count, NULL);
1502 CERROR("get target count failed: %d\n", rc);
1506 if (copy_to_user((int *)arg, &count, sizeof(int)))
1511 case LL_IOC_PATH2FID:
1512 if (copy_to_user((void *)arg, ll_inode2fid(inode),
1513 sizeof(struct lu_fid)))
1516 case LL_IOC_GET_CONNECT_FLAGS: {
1517 RETURN(obd_iocontrol(cmd, sbi->ll_md_exp, 0, NULL, (void*)arg));
1519 case OBD_IOC_CHANGELOG_SEND:
1520 case OBD_IOC_CHANGELOG_CLEAR:
1521 rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
1522 sizeof(struct ioc_changelog));
1524 case OBD_IOC_FID2PATH:
1525 RETURN(ll_fid2path(inode, (void *)arg));
1526 case LL_IOC_HSM_REQUEST: {
1527 struct hsm_user_request *hur;
1534 /* We don't know the true size yet; copy the fixed-size part */
1535 if (copy_from_user(hur, (void *)arg, sizeof(*hur))) {
1540 /* Compute the whole struct size */
1541 totalsize = hur_len(hur);
1544 /* Make sure the size is reasonable */
1545 if (totalsize >= MDS_MAXREQSIZE)
1548 OBD_ALLOC_LARGE(hur, totalsize);
1552 /* Copy the whole struct */
1553 if (copy_from_user(hur, (void *)arg, totalsize)) {
1554 OBD_FREE_LARGE(hur, totalsize);
1558 if (hur->hur_request.hr_action == HUA_RELEASE) {
1559 const struct lu_fid *fid;
1563 for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
1564 fid = &hur->hur_user_item[i].hui_fid;
1565 f = search_inode_for_lustre(inode->i_sb, fid);
1571 rc = ll_hsm_release(f);
1577 rc = obd_iocontrol(cmd, ll_i2mdexp(inode), totalsize,
1581 OBD_FREE_LARGE(hur, totalsize);
1585 case LL_IOC_HSM_PROGRESS: {
1586 struct hsm_progress_kernel hpk;
1587 struct hsm_progress hp;
1589 if (copy_from_user(&hp, (void *)arg, sizeof(hp)))
1592 hpk.hpk_fid = hp.hp_fid;
1593 hpk.hpk_cookie = hp.hp_cookie;
1594 hpk.hpk_extent = hp.hp_extent;
1595 hpk.hpk_flags = hp.hp_flags;
1596 hpk.hpk_errval = hp.hp_errval;
1597 hpk.hpk_data_version = 0;
1599 /* File may not exist in Lustre; all progress
1600 * reported to Lustre root */
1601 rc = obd_iocontrol(cmd, sbi->ll_md_exp, sizeof(hpk), &hpk,
1605 case LL_IOC_HSM_CT_START:
1606 if (!cfs_capable(CFS_CAP_SYS_ADMIN))
1609 rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
1610 sizeof(struct lustre_kernelcomm));
1613 case LL_IOC_HSM_COPY_START: {
1614 struct hsm_copy *copy;
1617 OBD_ALLOC_PTR(copy);
1620 if (copy_from_user(copy, (char *)arg, sizeof(*copy))) {
1625 rc = ll_ioc_copy_start(inode->i_sb, copy);
1626 if (copy_to_user((char *)arg, copy, sizeof(*copy)))
1632 case LL_IOC_HSM_COPY_END: {
1633 struct hsm_copy *copy;
1636 OBD_ALLOC_PTR(copy);
1639 if (copy_from_user(copy, (char *)arg, sizeof(*copy))) {
1644 rc = ll_ioc_copy_end(inode->i_sb, copy);
1645 if (copy_to_user((char *)arg, copy, sizeof(*copy)))
1652 RETURN(obd_iocontrol(cmd, sbi->ll_dt_exp, 0, NULL,
1657 static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
1659 struct inode *inode = file->f_mapping->host;
1660 struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
1661 struct ll_sb_info *sbi = ll_i2sbi(inode);
1662 int api32 = ll_need_32bit_api(sbi);
1663 loff_t ret = -EINVAL;
1666 mutex_lock(&inode->i_mutex);
1671 offset += file->f_pos;
1677 offset += LL_DIR_END_OFF_32BIT;
1679 offset += LL_DIR_END_OFF;
1686 ((api32 && offset <= LL_DIR_END_OFF_32BIT) ||
1687 (!api32 && offset <= LL_DIR_END_OFF))) {
1688 if (offset != file->f_pos) {
1689 if ((api32 && offset == LL_DIR_END_OFF_32BIT) ||
1690 (!api32 && offset == LL_DIR_END_OFF))
1691 fd->lfd_pos = MDS_DIR_END_OFF;
1692 else if (api32 && sbi->ll_flags & LL_SBI_64BIT_HASH)
1693 fd->lfd_pos = offset << 32;
1695 fd->lfd_pos = offset;
1696 file->f_pos = offset;
1697 file->f_version = 0;
1704 mutex_unlock(&inode->i_mutex);
1708 int ll_dir_open(struct inode *inode, struct file *file)
1711 RETURN(ll_file_open(inode, file));
1714 int ll_dir_release(struct inode *inode, struct file *file)
1717 RETURN(ll_file_release(inode, file));
1720 struct file_operations ll_dir_operations = {
1721 .llseek = ll_dir_seek,
1722 .open = ll_dir_open,
1723 .release = ll_dir_release,
1724 .read = generic_read_dir,
1725 .readdir = ll_readdir,
1726 .unlocked_ioctl = ll_dir_ioctl,