* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Whamcloud, Inc.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define DEBUG_SUBSYSTEM S_LLITE
+#include <lustre/lustre_idl.h>
#include <obd_support.h>
#include <obd_class.h>
+#include <lustre_ioctl.h>
#include <lustre_lib.h>
-#include <lustre/lustre_idl.h>
#include <lustre_lite.h>
#include <lustre_dlm.h>
#include <lustre_fid.h>
#include "llite_internal.h"
-#ifndef HAVE_PAGE_CHECKED
-#ifdef HAVE_PG_FS_MISC
-#define PageChecked(page) test_bit(PG_fs_misc, &(page)->flags)
-#define SetPageChecked(page) set_bit(PG_fs_misc, &(page)->flags)
-#else
-#error PageChecked or PageFsMisc not defined in kernel
-#endif
-#endif
-
/*
* (new) readdir implementation overview.
*
* a header lu_dirpage which describes the start/end hash, and whether this
* page is empty (contains no dir entry) or hash collide with next page.
* After client receives reply, several pages will be integrated into dir page
- * in CFS_PAGE_SIZE (if CFS_PAGE_SIZE greater than LU_PAGE_SIZE), and the
- * lu_dirpage for this integrated page will be adjusted.
+ * in PAGE_CACHE_SIZE (if PAGE_CACHE_SIZE greater than LU_PAGE_SIZE), and the
+ * lu_dirpage for this integrated page will be adjusted. See
+ * lmv_adjust_dirpages().
*
*/
-
-/* returns the page unlocked, but with a reference */
-static int ll_dir_readpage(struct file *file, struct page *page0)
+struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
+ __u64 offset, struct ll_dir_chain *chain)
{
- struct inode *inode = page0->mapping->host;
- int hash64 = ll_i2sbi(inode)->ll_flags & LL_SBI_64BIT_HASH;
- struct obd_export *exp = ll_i2sbi(inode)->ll_md_exp;
- struct ptlrpc_request *request;
- struct mdt_body *body;
- struct md_op_data *op_data;
- __u64 hash;
- struct page **page_pool;
- struct page *page;
-#ifndef HAVE_ADD_TO_PAGE_CACHE_LRU
- struct pagevec lru_pvec;
-#endif
- struct lu_dirpage *dp;
- int max_pages = ll_i2sbi(inode)->ll_md_brw_size >> CFS_PAGE_SHIFT;
- int nrdpgs = 0; /* number of pages read actually */
- int npages;
- int i;
- int rc;
- ENTRY;
-
- if (file) {
- struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
-
- hash = fd->fd_dir.lfd_next;
- } else {
- hash = ll_i2info(inode)->lli_sa_pos;
- }
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) hash "LPU64"\n",
- inode->i_ino, inode->i_generation, inode, hash);
-
- LASSERT(max_pages > 0 && max_pages <= PTLRPC_MAX_BRW_PAGES);
-
- OBD_ALLOC(page_pool, sizeof(page) * max_pages);
- if (page_pool != NULL) {
- page_pool[0] = page0;
- } else {
- page_pool = &page0;
- max_pages = 1;
- }
- for (npages = 1; npages < max_pages; npages++) {
- page = page_cache_alloc_cold(inode->i_mapping);
- if (!page)
- break;
- page_pool[npages] = page;
- }
-
- op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
- LUSTRE_OPC_ANY, NULL);
- op_data->op_npages = npages;
- op_data->op_offset = hash;
- rc = md_readpage(exp, op_data, page_pool, &request);
- ll_finish_md_op_data(op_data);
- if (rc == 0) {
- body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
- /* Checked by mdc_readpage() */
- LASSERT(body != NULL);
-
- if (body->valid & OBD_MD_FLSIZE)
- cl_isize_write(inode, body->size);
-
- nrdpgs = (request->rq_bulk->bd_nob_transferred+CFS_PAGE_SIZE-1)
- >> CFS_PAGE_SHIFT;
- SetPageUptodate(page0);
- }
- unlock_page(page0);
- ptlrpc_req_finished(request);
+ struct md_callback cb_op;
+ struct page *page;
+ int rc;
- CDEBUG(D_VFSTRACE, "read %d/%d pages\n", nrdpgs, npages);
+ cb_op.md_blocking_ast = ll_md_blocking_ast;
+ rc = md_read_page(ll_i2mdexp(dir), op_data, &cb_op, offset, &page);
+ if (rc != 0)
+ return ERR_PTR(rc);
- ll_pagevec_init(&lru_pvec, 0);
- for (i = 1; i < npages; i++) {
- unsigned long offset;
- int ret;
-
- page = page_pool[i];
-
- if (rc < 0 || i >= nrdpgs) {
- page_cache_release(page);
- continue;
- }
-
- SetPageUptodate(page);
-
- dp = cfs_kmap(page);
- hash = le64_to_cpu(dp->ldp_hash_start);
- cfs_kunmap(page);
-
- offset = hash_x_index(hash, hash64);
-
- prefetchw(&page->flags);
- ret = ll_add_to_page_cache_lru(page, inode->i_mapping, offset,
- GFP_KERNEL);
- if (ret == 0) {
- unlock_page(page);
- if (ll_pagevec_add(&lru_pvec, page) == 0)
- ll_pagevec_lru_add_file(&lru_pvec);
- } else {
- CDEBUG(D_VFSTRACE, "page %lu add to page cache failed:"
- " %d\n", offset, ret);
- }
- page_cache_release(page);
- }
- ll_pagevec_lru_add_file(&lru_pvec);
-
- if (page_pool != &page0)
- OBD_FREE(page_pool, sizeof(struct page *) * max_pages);
- EXIT;
- return rc;
+ return page;
}
-#ifndef MS_HAS_NEW_AOPS
-struct address_space_operations ll_dir_aops = {
- .readpage = ll_dir_readpage,
-};
-#else
-struct address_space_operations_ext ll_dir_aops = {
- .orig_aops.readpage = ll_dir_readpage,
-};
-#endif
-
-static void ll_check_page(struct inode *dir, struct page *page)
+void ll_release_page(struct inode *inode, struct page *page,
+ bool remove)
{
- /* XXX: check page format later */
- SetPageChecked(page);
+ kunmap(page);
+
+ /* Always remove the page for striped dir, because the page is
+ * built from temporarily in LMV layer */
+ if (inode != NULL && S_ISDIR(inode->i_mode) &&
+ ll_i2info(inode)->lli_lsm_md != NULL) {
+ __free_page(page);
+ return;
+ }
+
+ if (remove) {
+ lock_page(page);
+ if (likely(page->mapping != NULL))
+ truncate_complete_page(page->mapping, page);
+ unlock_page(page);
+ }
+ page_cache_release(page);
}
-void ll_release_page(struct page *page, int remove)
+#ifdef HAVE_DIR_CONTEXT
+int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
+ struct dir_context *ctx)
{
- kunmap(page);
- if (remove) {
- lock_page(page);
- if (likely(page->mapping != NULL))
- truncate_complete_page(page->mapping, page);
- unlock_page(page);
- }
- page_cache_release(page);
-}
-
-/*
- * Find, kmap and return page that contains given hash.
- */
-static struct page *ll_dir_page_locate(struct inode *dir, __u64 *hash,
- __u64 *start, __u64 *end)
-{
- int hash64 = ll_i2sbi(dir)->ll_flags & LL_SBI_64BIT_HASH;
- struct address_space *mapping = dir->i_mapping;
- /*
- * Complement of hash is used as an index so that
- * radix_tree_gang_lookup() can be used to find a page with starting
- * hash _smaller_ than one we are looking for.
- */
- unsigned long offset = hash_x_index(*hash, hash64);
- struct page *page;
- int found;
-
- TREE_READ_LOCK_IRQ(mapping);
- found = radix_tree_gang_lookup(&mapping->page_tree,
- (void **)&page, offset, 1);
- if (found > 0) {
- struct lu_dirpage *dp;
-
- page_cache_get(page);
- TREE_READ_UNLOCK_IRQ(mapping);
- /*
- * In contrast to find_lock_page() we are sure that directory
- * page cannot be truncated (while DLM lock is held) and,
- * hence, can avoid restart.
- *
- * In fact, page cannot be locked here at all, because
- * ll_dir_readpage() does synchronous io.
- */
- wait_on_page(page);
- if (PageUptodate(page)) {
- dp = cfs_kmap(page);
- if (BITS_PER_LONG == 32 && hash64) {
- *start = le64_to_cpu(dp->ldp_hash_start) >> 32;
- *end = le64_to_cpu(dp->ldp_hash_end) >> 32;
- *hash = *hash >> 32;
- } else {
- *start = le64_to_cpu(dp->ldp_hash_start);
- *end = le64_to_cpu(dp->ldp_hash_end);
- }
- LASSERTF(*start <= *hash, "start = "LPX64",end = "
- LPX64",hash = "LPX64"\n", *start, *end, *hash);
- CDEBUG(D_VFSTRACE, "page %lu [%llu %llu], hash "LPU64"\n",
- offset, *start, *end, *hash);
- if (*hash > *end) {
- ll_release_page(page, 0);
- page = NULL;
- } else if (*end != *start && *hash == *end) {
- /*
- * upon hash collision, remove this page,
- * otherwise put page reference, and
- * ll_get_dir_page() will issue RPC to fetch
- * the page we want.
- */
- ll_release_page(page,
- le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
- page = NULL;
- }
- } else {
- page_cache_release(page);
- page = ERR_PTR(-EIO);
- }
-
- } else {
- TREE_READ_UNLOCK_IRQ(mapping);
- page = NULL;
- }
- return page;
-}
-
-struct page *ll_get_dir_page(struct file *filp, struct inode *dir, __u64 hash,
- struct ll_dir_chain *chain)
+#else
+int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
+ void *cookie, filldir_t filldir)
{
- ldlm_policy_data_t policy = {.l_inodebits = {MDS_INODELOCK_UPDATE} };
- struct address_space *mapping = dir->i_mapping;
- struct lustre_handle lockh;
- struct lu_dirpage *dp;
- struct page *page;
- ldlm_mode_t mode;
- int rc;
- __u64 start = 0;
- __u64 end = 0;
- __u64 lhash = hash;
- struct ll_inode_info *lli = ll_i2info(dir);
- int hash64 = ll_i2sbi(dir)->ll_flags & LL_SBI_64BIT_HASH;
-
- mode = LCK_PR;
- rc = md_lock_match(ll_i2sbi(dir)->ll_md_exp, LDLM_FL_BLOCK_GRANTED,
- ll_inode2fid(dir), LDLM_IBITS, &policy, mode, &lockh);
- if (!rc) {
- struct ldlm_enqueue_info einfo = { LDLM_IBITS, mode,
- ll_md_blocking_ast, ldlm_completion_ast,
- NULL, NULL, dir };
- struct lookup_intent it = { .it_op = IT_READDIR };
- struct ptlrpc_request *request;
- struct md_op_data *op_data;
-
- op_data = ll_prep_md_op_data(NULL, dir, NULL, NULL, 0, 0,
- LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- return (void *)op_data;
-
- rc = md_enqueue(ll_i2sbi(dir)->ll_md_exp, &einfo, &it,
- op_data, &lockh, NULL, 0, NULL, 0);
-
- ll_finish_md_op_data(op_data);
-
- request = (struct ptlrpc_request *)it.d.lustre.it_data;
- if (request)
- ptlrpc_req_finished(request);
- if (rc < 0) {
- CERROR("lock enqueue: "DFID" at "LPU64": rc %d\n",
- PFID(ll_inode2fid(dir)), hash, rc);
- return ERR_PTR(rc);
- }
- } else {
- /* for cross-ref object, l_ast_data of the lock may not be set,
- * we reset it here */
- md_set_lock_data(ll_i2sbi(dir)->ll_md_exp, &lockh.cookie,
- dir, NULL);
- }
- ldlm_lock_dump_handle(D_OTHER, &lockh);
-
- cfs_mutex_lock(&lli->lli_readdir_mutex);
- page = ll_dir_page_locate(dir, &lhash, &start, &end);
- if (IS_ERR(page)) {
- CERROR("dir page locate: "DFID" at "LPU64": rc %ld\n",
- PFID(ll_inode2fid(dir)), lhash, PTR_ERR(page));
- GOTO(out_unlock, page);
- } else if (page != NULL) {
- /*
- * XXX nikita: not entirely correct handling of a corner case:
- * suppose hash chain of entries with hash value HASH crosses
- * border between pages P0 and P1. First both P0 and P1 are
- * cached, seekdir() is called for some entry from the P0 part
- * of the chain. Later P0 goes out of cache. telldir(HASH)
- * happens and finds P1, as it starts with matching hash
- * value. Remaining entries from P0 part of the chain are
- * skipped. (Is that really a bug?)
- *
- * Possible solutions: 0. don't cache P1 is such case, handle
- * it as an "overflow" page. 1. invalidate all pages at
- * once. 2. use HASH|1 as an index for P1.
- */
- GOTO(hash_collision, page);
- }
-
- page = read_cache_page(mapping, hash_x_index(hash, hash64),
- (filler_t*)mapping->a_ops->readpage, filp);
- if (IS_ERR(page)) {
- CERROR("read cache page: "DFID" at "LPU64": rc %ld\n",
- PFID(ll_inode2fid(dir)), hash, PTR_ERR(page));
- GOTO(out_unlock, page);
- }
-
- wait_on_page(page);
- (void)kmap(page);
- if (!PageUptodate(page)) {
- CERROR("page not updated: "DFID" at "LPU64": rc %d\n",
- PFID(ll_inode2fid(dir)), hash, -5);
- goto fail;
- }
- if (!PageChecked(page))
- ll_check_page(dir, page);
- if (PageError(page)) {
- CERROR("page error: "DFID" at "LPU64": rc %d\n",
- PFID(ll_inode2fid(dir)), hash, -5);
- goto fail;
- }
-hash_collision:
- dp = page_address(page);
- if (BITS_PER_LONG == 32 && hash64) {
- start = le64_to_cpu(dp->ldp_hash_start) >> 32;
- end = le64_to_cpu(dp->ldp_hash_end) >> 32;
- lhash = hash >> 32;
- } else {
- start = le64_to_cpu(dp->ldp_hash_start);
- end = le64_to_cpu(dp->ldp_hash_end);
- lhash = hash;
- }
- if (end == start) {
- LASSERT(start == lhash);
- CWARN("Page-wide hash collision: "LPU64"\n", end);
- if (BITS_PER_LONG == 32 && hash64)
- CWARN("Real page-wide hash collision at ["LPU64" "LPU64
- "] with hash "LPU64"\n",
- le64_to_cpu(dp->ldp_hash_start),
- le64_to_cpu(dp->ldp_hash_end), hash);
- /*
- * Fetch whole overflow chain...
- *
- * XXX not yet.
- */
- goto fail;
- }
-out_unlock:
- cfs_mutex_unlock(&lli->lli_readdir_mutex);
- ldlm_lock_decref(&lockh, mode);
- return page;
-
-fail:
- ll_release_page(page, 1);
- page = ERR_PTR(-EIO);
- goto out_unlock;
+#endif
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ __u64 pos = *ppos;
+ bool is_api32 = ll_need_32bit_api(sbi);
+ bool is_hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
+ struct page *page;
+ struct ll_dir_chain chain;
+ bool done = false;
+ int rc = 0;
+ ENTRY;
+
+ ll_dir_chain_init(&chain);
+
+ page = ll_get_dir_page(inode, op_data, pos, &chain);
+
+ while (rc == 0 && !done) {
+ struct lu_dirpage *dp;
+ struct lu_dirent *ent;
+ __u64 hash;
+ __u64 next;
+
+ if (IS_ERR(page)) {
+ rc = PTR_ERR(page);
+ break;
+ }
+
+ hash = MDS_DIR_END_OFF;
+ dp = page_address(page);
+ for (ent = lu_dirent_start(dp); ent != NULL && !done;
+ ent = lu_dirent_next(ent)) {
+ __u16 type;
+ int namelen;
+ struct lu_fid fid;
+ __u64 lhash;
+ __u64 ino;
+
+ hash = le64_to_cpu(ent->lde_hash);
+ if (hash < pos)
+ /*
+ * Skip until we find target hash
+ * value.
+ */
+ continue;
+
+ namelen = le16_to_cpu(ent->lde_namelen);
+ if (namelen == 0)
+ /*
+ * Skip dummy record.
+ */
+ continue;
+
+ if (is_api32 && is_hash64)
+ lhash = hash >> 32;
+ else
+ lhash = hash;
+ fid_le_to_cpu(&fid, &ent->lde_fid);
+ ino = cl_fid_build_ino(&fid, is_api32);
+ type = ll_dirent_type_get(ent);
+ /* For 'll_nfs_get_name_filldir()', it will try
+ * to access the 'ent' through its 'lde_name',
+ * so the parameter 'name' for 'filldir()' must
+ * be part of the 'ent'. */
+#ifdef HAVE_DIR_CONTEXT
+ ctx->pos = lhash;
+ done = !dir_emit(ctx, ent->lde_name, namelen, ino,
+ type);
+#else
+ done = filldir(cookie, ent->lde_name, namelen, lhash,
+ ino, type);
+#endif
+ }
+
+ if (done) {
+ pos = hash;
+ ll_release_page(inode, page, false);
+ break;
+ }
+
+ next = le64_to_cpu(dp->ldp_hash_end);
+ pos = next;
+ if (pos == MDS_DIR_END_OFF) {
+ /*
+ * End of directory reached.
+ */
+ done = 1;
+ ll_release_page(inode, page, false);
+ } else {
+ /*
+ * Normal case: continue to the next
+ * page.
+ */
+ ll_release_page(inode, page,
+ le32_to_cpu(dp->ldp_flags) &
+ LDF_COLLIDE);
+ next = pos;
+ page = ll_get_dir_page(inode, op_data, pos,
+ &chain);
+ }
+ }
+#ifdef HAVE_DIR_CONTEXT
+ ctx->pos = pos;
+#else
+ *ppos = pos;
+#endif
+ ll_dir_chain_fini(&chain);
+ RETURN(rc);
}
-int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
+#ifdef HAVE_DIR_CONTEXT
+static int ll_iterate(struct file *filp, struct dir_context *ctx)
+#else
+static int ll_readdir(struct file *filp, void *cookie, filldir_t filldir)
+#endif
{
- struct inode *inode = filp->f_dentry->d_inode;
- struct ll_inode_info *info = ll_i2info(inode);
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct ll_file_data *fd = LUSTRE_FPRIVATE(filp);
- __u64 pos = fd->fd_dir.lfd_pos;
- int api32 = ll_need_32bit_api(sbi);
- int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
- struct page *page;
- struct ll_dir_chain chain;
- int done;
- int rc;
- ENTRY;
-
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p) pos %lu/%llu 32bit_api %d\n",
- inode->i_ino, inode->i_generation, inode,
- (unsigned long)pos, i_size_read(inode), api32);
-
- if (pos == MDS_DIR_END_OFF)
- /*
- * end-of-file.
- */
- GOTO(out, rc = 0);
-
- rc = 0;
- done = 0;
- ll_dir_chain_init(&chain);
-
- fd->fd_dir.lfd_next = pos;
- page = ll_get_dir_page(filp, inode, pos, &chain);
-
- while (rc == 0 && !done) {
- struct lu_dirpage *dp;
- struct lu_dirent *ent;
-
- if (!IS_ERR(page)) {
- /*
- * If page is empty (end of directory is reached),
- * use this value.
- */
- __u64 hash = MDS_DIR_END_OFF;
- __u64 next;
-
- dp = page_address(page);
- for (ent = lu_dirent_start(dp); ent != NULL && !done;
- ent = lu_dirent_next(ent)) {
- __u16 type;
- int namelen;
- struct lu_fid fid;
- __u64 lhash;
- __u64 ino;
-
- /*
- * XXX: implement correct swabbing here.
- */
-
- hash = le64_to_cpu(ent->lde_hash);
- if (hash < pos)
- /*
- * Skip until we find target hash
- * value.
- */
- continue;
-
- namelen = le16_to_cpu(ent->lde_namelen);
- if (namelen == 0)
- /*
- * Skip dummy record.
- */
- continue;
-
- if (api32 && hash64)
- lhash = hash >> 32;
- else
- lhash = hash;
- fid_le_to_cpu(&fid, &ent->lde_fid);
- ino = cl_fid_build_ino(&fid, api32);
- type = ll_dirent_type_get(ent);
- /* For 'll_nfs_get_name_filldir()', it will try
- * to access the 'ent' through its 'lde_name',
- * so the parameter 'name' for 'filldir()' must
- * be part of the 'ent'. */
- done = filldir(cookie, ent->lde_name, namelen,
- lhash, ino, type);
- }
- next = le64_to_cpu(dp->ldp_hash_end);
- if (!done) {
- pos = next;
- if (pos == MDS_DIR_END_OFF) {
- /*
- * End of directory reached.
- */
- done = 1;
- ll_release_page(page, 0);
- } else if (1 /* chain is exhausted*/) {
- /*
- * Normal case: continue to the next
- * page.
- */
- ll_release_page(page,
- le32_to_cpu(dp->ldp_flags) &
- LDF_COLLIDE);
- fd->fd_dir.lfd_next = pos;
- page = ll_get_dir_page(filp, inode, pos,
- &chain);
- } else {
- /*
- * go into overflow page.
- */
- LASSERT(le32_to_cpu(dp->ldp_flags) &
- LDF_COLLIDE);
- ll_release_page(page, 1);
- }
- } else {
- pos = hash;
- ll_release_page(page, 0);
- }
- } else {
- rc = PTR_ERR(page);
- CERROR("error reading dir "DFID" at %lu: rc %d\n",
- PFID(&info->lli_fid), (unsigned long)pos, rc);
- }
- }
-
- fd->fd_dir.lfd_pos = pos;
- if (pos == MDS_DIR_END_OFF) {
- if (api32)
- filp->f_pos = LL_DIR_END_OFF_32BIT;
- else
- filp->f_pos = LL_DIR_END_OFF;
- } else {
- if (api32 && hash64)
- filp->f_pos = pos >> 32;
- else
- filp->f_pos = pos;
- }
- filp->f_version = inode->i_version;
- touch_atime(filp->f_vfsmnt, filp->f_dentry);
-
- ll_dir_chain_fini(&chain);
+ struct inode *inode = filp->f_dentry->d_inode;
+ struct ll_file_data *lfd = LUSTRE_FPRIVATE(filp);
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
+ int api32 = ll_need_32bit_api(sbi);
+ struct md_op_data *op_data;
+ __u64 pos;
+ int rc;
+ ENTRY;
+
+ if (lfd != NULL)
+ pos = lfd->lfd_pos;
+ else
+ pos = 0;
+
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) pos/size"
+ "%lu/%llu 32bit_api %d\n", PFID(ll_inode2fid(inode)),
+ inode, (unsigned long)pos, i_size_read(inode), api32);
+
+ if (pos == MDS_DIR_END_OFF)
+ /*
+ * end-of-file.
+ */
+ GOTO(out, rc = 0);
+
+ op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0,
+ LUSTRE_OPC_ANY, inode);
+ if (IS_ERR(op_data))
+ GOTO(out, rc = PTR_ERR(op_data));
+
+ if (unlikely(op_data->op_mea1 != NULL)) {
+ /* This is only needed for striped dir to fill ..,
+ * see lmv_read_entry */
+ if (filp->f_dentry->d_parent != NULL &&
+ filp->f_dentry->d_parent->d_inode != NULL) {
+ __u64 ibits = MDS_INODELOCK_UPDATE;
+ struct inode *parent =
+ filp->f_dentry->d_parent->d_inode;
+
+ if (ll_have_md_lock(parent, &ibits, LCK_MINMODE))
+ op_data->op_fid3 = *ll_inode2fid(parent);
+ }
+
+ /* If it can not find in cache, do lookup .. on the master
+ * object */
+ if (fid_is_zero(&op_data->op_fid3)) {
+ rc = ll_dir_get_parent_fid(inode, &op_data->op_fid3);
+ if (rc != 0) {
+ ll_finish_md_op_data(op_data);
+ RETURN(rc);
+ }
+ }
+ }
+ op_data->op_max_pages = sbi->ll_md_brw_pages;
+#ifdef HAVE_DIR_CONTEXT
+ ctx->pos = pos;
+ rc = ll_dir_read(inode, &pos, op_data, ctx);
+ pos = ctx->pos;
+#else
+ rc = ll_dir_read(inode, &pos, op_data, cookie, filldir);
+#endif
+ if (lfd != NULL)
+ lfd->lfd_pos = pos;
+
+ if (pos == MDS_DIR_END_OFF) {
+ if (api32)
+ pos = LL_DIR_END_OFF_32BIT;
+ else
+ pos = LL_DIR_END_OFF;
+ } else {
+ if (api32 && hash64)
+ pos = pos >> 32;
+ }
+#ifdef HAVE_DIR_CONTEXT
+ ctx->pos = pos;
+#else
+ filp->f_pos = pos;
+#endif
+ ll_finish_md_op_data(op_data);
+ filp->f_version = inode->i_version;
out:
- if (!rc)
- ll_stats_ops_tally(sbi, LPROC_LL_READDIR, 1);
+ if (!rc)
+ ll_stats_ops_tally(sbi, LPROC_LL_READDIR, 1);
- RETURN(rc);
+ RETURN(rc);
}
-int ll_send_mgc_param(struct obd_export *mgc, char *string)
+static int ll_send_mgc_param(struct obd_export *mgc, char *string)
{
struct mgs_send_param *msp;
int rc = 0;
if (!msp)
return -ENOMEM;
- strncpy(msp->mgs_param, string, MGS_PARAM_MAXLEN);
+ strlcpy(msp->mgs_param, string, sizeof(msp->mgs_param));
rc = obd_set_info_async(NULL, mgc, sizeof(KEY_SET_INFO), KEY_SET_INFO,
sizeof(struct mgs_send_param), msp, NULL);
if (rc)
return rc;
}
-char *ll_get_fsname(struct inode *inode)
+/**
+ * Create striped directory with specified stripe(@lump)
+ *
+ * param[in]parent the parent of the directory.
+ * param[in]lump the specified stripes.
+ * param[in]dirname the name of the directory.
+ * param[in]mode the specified mode of the directory.
+ *
+ * retval =0 if striped directory is being created successfully.
+ * <0 if the creation is failed.
+ */
+static int ll_dir_setdirstripe(struct inode *parent, struct lmv_user_md *lump,
+ const char *dirname, umode_t mode)
{
- struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
- char *ptr, *fsname;
- int len;
-
- OBD_ALLOC(fsname, MGS_PARAM_MAXLEN);
- len = strlen(lsi->lsi_lmd->lmd_profile);
- ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
- if (ptr && (strcmp(ptr, "-client") == 0))
- len -= 7;
- strncpy(fsname, lsi->lsi_lmd->lmd_profile, len);
- fsname[len] = '\0';
-
- return fsname;
+ struct ptlrpc_request *request = NULL;
+ struct md_op_data *op_data;
+ struct ll_sb_info *sbi = ll_i2sbi(parent);
+ int err;
+ ENTRY;
+
+ if (unlikely(lump->lum_magic != LMV_USER_MAGIC))
+ RETURN(-EINVAL);
+
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) name %s"
+ "stripe_offset %d, stripe_count: %u\n",
+ PFID(ll_inode2fid(parent)), parent, dirname,
+ (int)lump->lum_stripe_offset, lump->lum_stripe_count);
+
+ if (lump->lum_magic != cpu_to_le32(LMV_USER_MAGIC))
+ lustre_swab_lmv_user_md(lump);
+
+ if (!IS_POSIXACL(parent) || !exp_connect_umask(ll_i2mdexp(parent)))
+ mode &= ~current_umask();
+ mode = (mode & (S_IRWXUGO | S_ISVTX)) | S_IFDIR;
+ op_data = ll_prep_md_op_data(NULL, parent, NULL, dirname,
+ strlen(dirname), mode, LUSTRE_OPC_MKDIR,
+ lump);
+ if (IS_ERR(op_data))
+ GOTO(err_exit, err = PTR_ERR(op_data));
+
+ op_data->op_cli_flags |= CLI_SET_MEA;
+ err = md_create(sbi->ll_md_exp, op_data, lump, sizeof(*lump), mode,
+ from_kuid(&init_user_ns, current_fsuid()),
+ from_kgid(&init_user_ns, current_fsgid()),
+ cfs_curproc_cap_pack(), 0, &request);
+ ll_finish_md_op_data(op_data);
+ if (err)
+ GOTO(err_exit, err);
+err_exit:
+ ptlrpc_req_finished(request);
+ return err;
}
int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
int rc = 0;
struct lustre_sb_info *lsi = s2lsi(inode->i_sb);
struct obd_device *mgc = lsi->lsi_mgc;
- char *fsname = NULL, *param = NULL;
int lum_size;
+ ENTRY;
if (lump != NULL) {
/*
lustre_swab_lov_user_md_v1(lump);
lum_size = sizeof(struct lov_user_md_v1);
break;
- }
+ }
case LOV_USER_MAGIC_V3: {
if (lump->lmm_magic != cpu_to_le32(LOV_USER_MAGIC_V3))
lustre_swab_lov_user_md_v3(
(struct lov_user_md_v3 *)lump);
lum_size = sizeof(struct lov_user_md_v3);
break;
- }
+ }
+ case LMV_USER_MAGIC: {
+ if (lump->lmm_magic != cpu_to_le32(LMV_USER_MAGIC))
+ lustre_swab_lmv_user_md(
+ (struct lmv_user_md *)lump);
+ lum_size = sizeof(struct lmv_user_md);
+ break;
+ }
default: {
CDEBUG(D_IOCTL, "bad userland LOV MAGIC:"
" %#08x != %#08x nor %#08x\n",
lump->lmm_magic, LOV_USER_MAGIC_V1,
LOV_USER_MAGIC_V3);
RETURN(-EINVAL);
- }
- }
+ }
+ }
} else {
lum_size = sizeof(struct lov_user_md_v1);
}
LOV_USER_MAGIC_V3 have the same initial fields so we do not
need the make the distiction between the 2 versions */
if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
- OBD_ALLOC(param, MGS_PARAM_MAXLEN);
-
- /* Get fsname and assume devname to be -MDT0000. */
- fsname = ll_get_fsname(inode);
- /* Set root stripesize */
- sprintf(param, "%s-MDT0000.lov.stripesize=%u", fsname,
- lump ? le32_to_cpu(lump->lmm_stripe_size) : 0);
- rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
- if (rc)
- goto end;
-
- /* Set root stripecount */
- sprintf(param, "%s-MDT0000.lov.stripecount=%hd", fsname,
- lump ? le16_to_cpu(lump->lmm_stripe_count) : 0);
- rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
- if (rc)
- goto end;
+ char *param = NULL;
+ char *buf;
+
+ OBD_ALLOC(param, MGS_PARAM_MAXLEN);
+ if (param == NULL)
+ GOTO(end, rc = -ENOMEM);
+
+ buf = param;
+ /* Get fsname and assume devname to be -MDT0000. */
+ ll_get_fsname(inode->i_sb, buf, MTI_NAME_MAXLEN);
+ strcat(buf, "-MDT0000.lov");
+ buf += strlen(buf);
+
+ /* Set root stripesize */
+ sprintf(buf, ".stripesize=%u",
+ lump ? le32_to_cpu(lump->lmm_stripe_size) : 0);
+ rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
+ if (rc)
+ GOTO(end, rc);
+
+ /* Set root stripecount */
+ sprintf(buf, ".stripecount=%hd",
+ lump ? le16_to_cpu(lump->lmm_stripe_count) : 0);
+ rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
+ if (rc)
+ GOTO(end, rc);
+
+ /* Set root stripeoffset */
+ sprintf(buf, ".stripeoffset=%hd",
+ lump ? le16_to_cpu(lump->lmm_stripe_offset) :
+ (typeof(lump->lmm_stripe_offset))(-1));
+ rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
- /* Set root stripeoffset */
- sprintf(param, "%s-MDT0000.lov.stripeoffset=%hd", fsname,
- lump ? le16_to_cpu(lump->lmm_stripe_offset) :
- (typeof(lump->lmm_stripe_offset))(-1));
- rc = ll_send_mgc_param(mgc->u.cli.cl_mgc_mgsexp, param);
- if (rc)
- goto end;
end:
- if (fsname)
- OBD_FREE(fsname, MGS_PARAM_MAXLEN);
- if (param)
- OBD_FREE(param, MGS_PARAM_MAXLEN);
- }
- return rc;
+ if (param != NULL)
+ OBD_FREE(param, MGS_PARAM_MAXLEN);
+ }
+ RETURN(rc);
}
-int ll_dir_getstripe(struct inode *inode, struct lov_mds_md **lmmp,
- int *lmm_size, struct ptlrpc_request **request)
+/**
+ * This function will be used to get default LOV/LMV/Default LMV
+ * @valid will be used to indicate which stripe it will retrieve
+ * OBD_MD_MEA LMV stripe EA
+ * OBD_MD_DEFAULT_MEA Default LMV stripe EA
+ * otherwise Default LOV EA.
+ * Each time, it can only retrieve 1 stripe EA
+ **/
+int ll_dir_getstripe(struct inode *inode, void **plmm, int *plmm_size,
+ struct ptlrpc_request **request, obd_valid valid)
{
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct mdt_body *body;
- struct lov_mds_md *lmm = NULL;
- struct ptlrpc_request *req = NULL;
- int rc, lmmsize;
- struct md_op_data *op_data;
-
- rc = ll_get_max_mdsize(sbi, &lmmsize);
- if (rc)
- RETURN(rc);
-
- op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
- 0, lmmsize, LUSTRE_OPC_ANY,
- NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
-
- op_data->op_valid = OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
- rc = md_getattr(sbi->ll_md_exp, op_data, &req);
- ll_finish_md_op_data(op_data);
- if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr failed on inode "
- "%lu/%u: rc %d\n", inode->i_ino,
- inode->i_generation, rc);
- GOTO(out, rc);
- }
-
- body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
- LASSERT(body != NULL);
-
- lmmsize = body->eadatasize;
-
- if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
- lmmsize == 0) {
- GOTO(out, rc = -ENODATA);
- }
-
- lmm = req_capsule_server_sized_get(&req->rq_pill,
- &RMF_MDT_MD, lmmsize);
- LASSERT(lmm != NULL);
-
- /*
- * This is coming from the MDS, so is probably in
- * little endian. We convert it to host endian before
- * passing it to userspace.
- */
- /* We don't swab objects for directories */
- switch (le32_to_cpu(lmm->lmm_magic)) {
- case LOV_MAGIC_V1:
- if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
- lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
- break;
- case LOV_MAGIC_V3:
- if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
- lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
- break;
- default:
- CERROR("unknown magic: %lX\n", (unsigned long)lmm->lmm_magic);
- rc = -EPROTO;
- }
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct mdt_body *body;
+ struct lov_mds_md *lmm = NULL;
+ struct ptlrpc_request *req = NULL;
+ int rc, lmm_size;
+ struct md_op_data *op_data;
+ ENTRY;
+
+ rc = ll_get_default_mdsize(sbi, &lmm_size);
+ if (rc)
+ RETURN(rc);
+
+ op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL,
+ 0, lmm_size, LUSTRE_OPC_ANY,
+ NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+
+ op_data->op_valid = valid | OBD_MD_FLEASIZE | OBD_MD_FLDIREA;
+ rc = md_getattr(sbi->ll_md_exp, op_data, &req);
+ ll_finish_md_op_data(op_data);
+ if (rc < 0) {
+ CDEBUG(D_INFO, "md_getattr failed on inode "
+ DFID": rc %d\n", PFID(ll_inode2fid(inode)), rc);
+ GOTO(out, rc);
+ }
+
+ body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
+ LASSERT(body != NULL);
+
+ lmm_size = body->mbo_eadatasize;
+
+ if (!(body->mbo_valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
+ lmm_size == 0) {
+ GOTO(out, rc = -ENODATA);
+ }
+
+ lmm = req_capsule_server_sized_get(&req->rq_pill,
+ &RMF_MDT_MD, lmm_size);
+ LASSERT(lmm != NULL);
+
+ /*
+ * This is coming from the MDS, so is probably in
+ * little endian. We convert it to host endian before
+ * passing it to userspace.
+ */
+ /* We don't swab objects for directories */
+ switch (le32_to_cpu(lmm->lmm_magic)) {
+ case LOV_MAGIC_V1:
+ if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
+ lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm);
+ break;
+ case LOV_MAGIC_V3:
+ if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
+ lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
+ break;
+ case LMV_MAGIC_V1:
+ if (LMV_MAGIC != cpu_to_le32(LMV_MAGIC))
+ lustre_swab_lmv_mds_md((union lmv_mds_md *)lmm);
+ break;
+ case LMV_USER_MAGIC:
+ if (LMV_USER_MAGIC != cpu_to_le32(LMV_USER_MAGIC))
+ lustre_swab_lmv_user_md((struct lmv_user_md *)lmm);
+ break;
+ default:
+ CERROR("unknown magic: %lX\n", (unsigned long)lmm->lmm_magic);
+ rc = -EPROTO;
+ }
out:
- *lmmp = lmm;
- *lmm_size = lmmsize;
- *request = req;
- return rc;
+ *plmm = lmm;
+ *plmm_size = lmm_size;
+ *request = req;
+ return rc;
+}
+
+int ll_get_mdt_idx_by_fid(struct ll_sb_info *sbi, const struct lu_fid *fid)
+{
+ struct md_op_data *op_data;
+ int rc;
+ int mdt_index;
+ ENTRY;
+
+ OBD_ALLOC_PTR(op_data);
+ if (op_data == NULL)
+ RETURN(-ENOMEM);
+
+ op_data->op_flags |= MF_GET_MDT_IDX;
+ op_data->op_fid1 = *fid;
+ rc = md_getattr(sbi->ll_md_exp, op_data, NULL);
+ mdt_index = op_data->op_mds;
+ OBD_FREE_PTR(op_data);
+ if (rc < 0)
+ RETURN(rc);
+
+ RETURN(mdt_index);
}
/*
*/
int ll_get_mdt_idx(struct inode *inode)
{
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct md_op_data *op_data;
- int rc, mdtidx;
- ENTRY;
+ return ll_get_mdt_idx_by_fid(ll_i2sbi(inode), ll_inode2fid(inode));
+}
- op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0,
- 0, LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
+/**
+ * Generic handler to do any pre-copy work.
+ *
+ * It send a first hsm_progress (with extent length == 0) to coordinator as a
+ * first information for it that real work has started.
+ *
+ * Moreover, for a ARCHIVE request, it will sample the file data version and
+ * store it in \a copy.
+ *
+ * \return 0 on success.
+ */
+static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
+{
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct hsm_progress_kernel hpk;
+ int rc;
+ ENTRY;
+
+ /* Forge a hsm_progress based on data from copy. */
+ hpk.hpk_fid = copy->hc_hai.hai_fid;
+ hpk.hpk_cookie = copy->hc_hai.hai_cookie;
+ hpk.hpk_extent.offset = copy->hc_hai.hai_extent.offset;
+ hpk.hpk_extent.length = 0;
+ hpk.hpk_flags = 0;
+ hpk.hpk_errval = 0;
+ hpk.hpk_data_version = 0;
+
+
+ /* For archive request, we need to read the current file version. */
+ if (copy->hc_hai.hai_action == HSMA_ARCHIVE) {
+ struct inode *inode;
+ __u64 data_version = 0;
+
+ /* Get inode for this fid */
+ inode = search_inode_for_lustre(sb, ©->hc_hai.hai_fid);
+ if (IS_ERR(inode)) {
+ hpk.hpk_flags |= HP_FLAG_RETRY;
+ /* hpk_errval is >= 0 */
+ hpk.hpk_errval = -PTR_ERR(inode);
+ GOTO(progress, rc = PTR_ERR(inode));
+ }
+
+ /* Read current file data version */
+ rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
+ iput(inode);
+ if (rc != 0) {
+ CDEBUG(D_HSM, "Could not read file data version of "
+ DFID" (rc = %d). Archive request ("
+ LPX64") could not be done.\n",
+ PFID(©->hc_hai.hai_fid), rc,
+ copy->hc_hai.hai_cookie);
+ hpk.hpk_flags |= HP_FLAG_RETRY;
+ /* hpk_errval must be >= 0 */
+ hpk.hpk_errval = -rc;
+ GOTO(progress, rc);
+ }
+
+ /* Store it the hsm_copy for later copytool use.
+ * Always modified even if no lsm. */
+ copy->hc_data_version = data_version;
+ }
+
+progress:
+ /* On error, the request should be considered as completed */
+ if (hpk.hpk_errval > 0)
+ hpk.hpk_flags |= HP_FLAG_COMPLETED;
+ rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
+ &hpk, NULL);
+
+ RETURN(rc);
+}
- op_data->op_valid |= OBD_MD_MDTIDX;
- rc = md_getattr(sbi->ll_md_exp, op_data, NULL);
- mdtidx = op_data->op_mds;
- ll_finish_md_op_data(op_data);
- if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
- RETURN(rc);
- }
- return mdtidx;
+/**
+ * Generic handler to do any post-copy work.
+ *
+ * It will send the last hsm_progress update to coordinator to inform it
+ * that copy is finished and whether it was successful or not.
+ *
+ * Moreover,
+ * - for ARCHIVE request, it will sample the file data version and compare it
+ * with the version saved in ll_ioc_copy_start(). If they do not match, copy
+ * will be considered as failed.
+ * - for RESTORE request, it will sample the file data version and send it to
+ * coordinator which is useful if the file was imported as 'released'.
+ *
+ * \return 0 on success.
+ */
+static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
+{
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct hsm_progress_kernel hpk;
+ int rc;
+ ENTRY;
+
+ /* If you modify the logic here, also check llapi_hsm_copy_end(). */
+ /* Take care: copy->hc_hai.hai_action, len, gid and data are not
+ * initialized if copy_end was called with copy == NULL.
+ */
+
+ /* Forge a hsm_progress based on data from copy. */
+ hpk.hpk_fid = copy->hc_hai.hai_fid;
+ hpk.hpk_cookie = copy->hc_hai.hai_cookie;
+ hpk.hpk_extent = copy->hc_hai.hai_extent;
+ hpk.hpk_flags = copy->hc_flags | HP_FLAG_COMPLETED;
+ hpk.hpk_errval = copy->hc_errval;
+ hpk.hpk_data_version = 0;
+
+ /* For archive request, we need to check the file data was not changed.
+ *
+ * For restore request, we need to send the file data version, this is
+ * useful when the file was created using hsm_import.
+ */
+ if (((copy->hc_hai.hai_action == HSMA_ARCHIVE) ||
+ (copy->hc_hai.hai_action == HSMA_RESTORE)) &&
+ (copy->hc_errval == 0)) {
+ struct inode *inode;
+ __u64 data_version = 0;
+
+ /* Get lsm for this fid */
+ inode = search_inode_for_lustre(sb, ©->hc_hai.hai_fid);
+ if (IS_ERR(inode)) {
+ hpk.hpk_flags |= HP_FLAG_RETRY;
+ /* hpk_errval must be >= 0 */
+ hpk.hpk_errval = -PTR_ERR(inode);
+ GOTO(progress, rc = PTR_ERR(inode));
+ }
+
+ rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
+ iput(inode);
+ if (rc) {
+ CDEBUG(D_HSM, "Could not read file data version. "
+ "Request could not be confirmed.\n");
+ if (hpk.hpk_errval == 0)
+ hpk.hpk_errval = -rc;
+ GOTO(progress, rc);
+ }
+
+ /* Store it the hsm_copy for later copytool use.
+ * Always modified even if no lsm. */
+ hpk.hpk_data_version = data_version;
+
+ /* File could have been stripped during archiving, so we need
+ * to check anyway. */
+ if ((copy->hc_hai.hai_action == HSMA_ARCHIVE) &&
+ (copy->hc_data_version != data_version)) {
+ CDEBUG(D_HSM, "File data version mismatched. "
+ "File content was changed during archiving. "
+ DFID", start:"LPX64" current:"LPX64"\n",
+ PFID(©->hc_hai.hai_fid),
+ copy->hc_data_version, data_version);
+ /* File was changed, send error to cdt. Do not ask for
+ * retry because if a file is modified frequently,
+ * the cdt will loop on retried archive requests.
+ * The policy engine will ask for a new archive later
+ * when the file will not be modified for some tunable
+ * time */
+ /* we do not notify caller */
+ hpk.hpk_flags &= ~HP_FLAG_RETRY;
+ /* hpk_errval must be >= 0 */
+ hpk.hpk_errval = EBUSY;
+ }
+
+ }
+
+progress:
+ rc = obd_iocontrol(LL_IOC_HSM_PROGRESS, sbi->ll_md_exp, sizeof(hpk),
+ &hpk, NULL);
+
+ RETURN(rc);
}
-static int copy_and_ioctl(int cmd, struct obd_export *exp, void *data, int len)
+
+static int copy_and_ioctl(int cmd, struct obd_export *exp,
+ const void __user *data, size_t size)
{
- void *ptr;
- int rc;
+ void *copy;
+ int rc;
- OBD_ALLOC(ptr, len);
- if (ptr == NULL)
- return -ENOMEM;
- if (cfs_copy_from_user(ptr, data, len)) {
- OBD_FREE(ptr, len);
- return -EFAULT;
- }
- rc = obd_iocontrol(cmd, exp, len, data, NULL);
- OBD_FREE(ptr, len);
- return rc;
+ OBD_ALLOC(copy, size);
+ if (copy == NULL)
+ return -ENOMEM;
+
+ if (copy_from_user(copy, data, size)) {
+ rc = -EFAULT;
+ goto out;
+ }
+
+ rc = obd_iocontrol(cmd, exp, size, copy, NULL);
+out:
+ OBD_FREE(copy, size);
+
+ return rc;
}
static int quotactl_ioctl(struct ll_sb_info *sbi, struct if_quotactl *qctl)
sbi->ll_flags & LL_SBI_RMT_CLIENT)
RETURN(-EPERM);
break;
- case Q_GETQUOTA:
- if (((type == USRQUOTA && cfs_curproc_euid() != id) ||
- (type == GRPQUOTA && !in_egroup_p(id))) &&
- (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
- sbi->ll_flags & LL_SBI_RMT_CLIENT))
- RETURN(-EPERM);
+ case Q_GETQUOTA:
+ if (((type == USRQUOTA &&
+ !uid_eq(current_euid(), make_kuid(&init_user_ns, id))) ||
+ (type == GRPQUOTA &&
+ !in_egroup_p(make_kgid(&init_user_ns, id)))) &&
+ (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
+ sbi->ll_flags & LL_SBI_RMT_CLIENT))
+ RETURN(-EPERM);
break;
case Q_GETINFO:
break;
RETURN(rc);
}
+static char *
+ll_getname(const char __user *filename)
+{
+ int ret = 0, len;
+ char *tmp = __getname();
+
+ if (!tmp)
+ return ERR_PTR(-ENOMEM);
+
+ len = strncpy_from_user(tmp, filename, PATH_MAX);
+ if (len == 0)
+ ret = -ENOENT;
+ else if (len > PATH_MAX)
+ ret = -ENAMETOOLONG;
+
+ if (ret) {
+ __putname(tmp);
+ tmp = ERR_PTR(ret);
+ }
+ return tmp;
+}
+
+#define ll_putname(filename) __putname(filename)
+
static long ll_dir_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
struct inode *inode = file->f_dentry->d_inode;
int rc = 0;
ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), cmd=%#x\n",
- inode->i_ino, inode->i_generation, inode, cmd);
+ CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), cmd=%#x\n",
+ PFID(ll_inode2fid(inode)), inode, cmd);
/* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */
if (_IOC_TYPE(cmd) == 'T' || _IOC_TYPE(cmd) == 't') /* tty ioctls */
return 0;
}
case IOC_MDC_LOOKUP: {
- struct ptlrpc_request *request = NULL;
- int namelen, len = 0;
- char *buf = NULL;
- char *filename;
- struct md_op_data *op_data;
+ int namelen, len = 0;
+ char *buf = NULL;
+ char *filename;
+
+ rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
+ if (rc != 0)
+ RETURN(rc);
+ data = (void *)buf;
+
+ filename = data->ioc_inlbuf1;
+ namelen = strlen(filename);
+ if (namelen < 1) {
+ CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
+ GOTO(out_free, rc = -EINVAL);
+ }
+
+ rc = ll_get_fid_by_name(inode, filename, namelen, NULL);
+ if (rc < 0) {
+ CERROR("%s: lookup %.*s failed: rc = %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0), namelen,
+ filename, rc);
+ GOTO(out_free, rc);
+ }
+out_free:
+ obd_ioctl_freedata(buf, len);
+ return rc;
+ }
+ case LL_IOC_LMV_SETSTRIPE: {
+ struct lmv_user_md *lum;
+ char *buf = NULL;
+ char *filename;
+ int namelen = 0;
+ int lumlen = 0;
+ umode_t mode;
+ int len;
+ int rc;
+
+ rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
+ if (rc)
+ RETURN(rc);
+
+ data = (void *)buf;
+ if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
+ data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0)
+ GOTO(lmv_out_free, rc = -EINVAL);
+
+ filename = data->ioc_inlbuf1;
+ namelen = data->ioc_inllen1;
+
+ if (namelen < 1) {
+ CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
+ GOTO(lmv_out_free, rc = -EINVAL);
+ }
+ lum = (struct lmv_user_md *)data->ioc_inlbuf2;
+ lumlen = data->ioc_inllen2;
+
+ if (lum->lum_magic != LMV_USER_MAGIC ||
+ lumlen != sizeof(*lum)) {
+ CERROR("%s: wrong lum magic %x or size %d: rc = %d\n",
+ filename, lum->lum_magic, lumlen, -EFAULT);
+ GOTO(lmv_out_free, rc = -EINVAL);
+ }
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 50, 0)
+ mode = data->ioc_type != 0 ? data->ioc_type : S_IRWXUGO;
+#else
+ mode = data->ioc_type;
+#endif
+ rc = ll_dir_setdirstripe(inode, lum, filename, mode);
+lmv_out_free:
+ obd_ioctl_freedata(buf, len);
+ RETURN(rc);
- rc = obd_ioctl_getdata(&buf, &len, (void *)arg);
- if (rc)
- RETURN(rc);
- data = (void *)buf;
+ }
+ case LL_IOC_LMV_SET_DEFAULT_STRIPE: {
+ struct lmv_user_md lum;
+ struct lmv_user_md __user *ulump =
+ (struct lmv_user_md __user *)arg;
+ int rc;
- filename = data->ioc_inlbuf1;
- namelen = strlen(filename);
+ if (copy_from_user(&lum, ulump, sizeof(lum)))
+ RETURN(-EFAULT);
- if (namelen < 1) {
- CDEBUG(D_INFO, "IOC_MDC_LOOKUP missing filename\n");
- GOTO(out_free, rc = -EINVAL);
- }
+ if (lum.lum_magic != LMV_USER_MAGIC)
+ RETURN(-EINVAL);
- op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, namelen,
- 0, LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- GOTO(out_free, rc = PTR_ERR(op_data));
+ rc = ll_dir_setstripe(inode, (struct lov_user_md *)&lum, 0);
- op_data->op_valid = OBD_MD_FLID;
- rc = md_getattr_name(sbi->ll_md_exp, op_data, &request);
- ll_finish_md_op_data(op_data);
- if (rc < 0) {
- CDEBUG(D_INFO, "md_getattr_name: %d\n", rc);
- GOTO(out_free, rc);
- }
- ptlrpc_req_finished(request);
- EXIT;
-out_free:
- obd_ioctl_freedata(buf, len);
- return rc;
- }
+ RETURN(rc);
+ }
case LL_IOC_LOV_SETSTRIPE: {
struct lov_user_md_v3 lumv3;
struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3;
LASSERT(sizeof(lumv3.lmm_objects[0]) ==
sizeof(lumv3p->lmm_objects[0]));
/* first try with v1 which is smaller than v3 */
- if (cfs_copy_from_user(lumv1, lumv1p, sizeof(*lumv1)))
+ if (copy_from_user(lumv1, lumv1p, sizeof(*lumv1)))
RETURN(-EFAULT);
- if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) {
- if (cfs_copy_from_user(&lumv3, lumv3p, sizeof(lumv3)))
+ if ((lumv1->lmm_magic == LOV_USER_MAGIC_V3) ) {
+ if (copy_from_user(&lumv3, lumv3p, sizeof(lumv3)))
RETURN(-EFAULT);
}
RETURN(rc);
}
- case LL_IOC_OBD_STATFS:
- RETURN(ll_obd_statfs(inode, (void *)arg));
+ case LL_IOC_LMV_GETSTRIPE: {
+ struct lmv_user_md __user *ulmv =
+ (struct lmv_user_md __user *)arg;
+ struct lmv_user_md lum;
+ struct ptlrpc_request *request = NULL;
+ union lmv_mds_md *lmm = NULL;
+ int lmmsize;
+ obd_valid valid = 0;
+ struct lmv_user_md *tmp = NULL;
+ int mdt_index;
+ int lum_size;
+ int stripe_count;
+ int i;
+ int rc;
+
+ if (copy_from_user(&lum, ulmv, sizeof(*ulmv)))
+ RETURN(-EFAULT);
+
+ /* lum_magic will indicate which stripe the ioctl will like
+ * to get, LMV_MAGIC_V1 is for normal LMV stripe, LMV_USER_MAGIC
+ * is for default LMV stripe */
+ if (lum.lum_magic == LMV_MAGIC_V1)
+ valid |= OBD_MD_MEA;
+ else if (lum.lum_magic == LMV_USER_MAGIC)
+ valid |= OBD_MD_DEFAULT_MEA;
+ else
+ RETURN(-EINVAL);
+
+ rc = ll_dir_getstripe(inode, (void **)&lmm, &lmmsize, &request,
+ valid);
+ if (rc != 0)
+ GOTO(finish_req, rc);
+
+ /* Get default LMV EA */
+ if (lum.lum_magic == LMV_USER_MAGIC) {
+ if (rc != 0)
+ GOTO(finish_req, rc);
+
+ if (lmmsize > sizeof(*ulmv))
+ GOTO(finish_req, rc = -EINVAL);
+
+ if (copy_to_user(ulmv, lmm, lmmsize))
+ GOTO(finish_req, rc = -EFAULT);
+
+ GOTO(finish_req, rc);
+ }
+
+ stripe_count = lmv_mds_md_stripe_count_get(lmm);
+ lum_size = lmv_user_md_size(stripe_count, LMV_MAGIC_V1);
+ OBD_ALLOC(tmp, lum_size);
+ if (tmp == NULL)
+ GOTO(finish_req, rc = -ENOMEM);
+
+ mdt_index = ll_get_mdt_idx(inode);
+ if (mdt_index < 0)
+ GOTO(out_tmp, rc = -ENOMEM);
+
+ tmp->lum_magic = LMV_MAGIC_V1;
+ tmp->lum_stripe_count = 0;
+ tmp->lum_stripe_offset = mdt_index;
+ for (i = 0; i < stripe_count; i++) {
+ struct lu_fid *fid;
+
+ fid = &lmm->lmv_md_v1.lmv_stripe_fids[i];
+ mdt_index = ll_get_mdt_idx_by_fid(sbi, fid);
+ if (mdt_index < 0)
+ GOTO(out_tmp, rc = mdt_index);
+
+ tmp->lum_objects[i].lum_mds = mdt_index;
+ tmp->lum_objects[i].lum_fid = *fid;
+ tmp->lum_stripe_count++;
+ }
+
+ if (copy_to_user(ulmv, tmp, lum_size))
+ GOTO(out_tmp, rc = -EFAULT);
+out_tmp:
+ OBD_FREE(tmp, lum_size);
+finish_req:
+ ptlrpc_req_finished(request);
+ return rc;
+ }
+
+ case LL_IOC_REMOVE_ENTRY: {
+ char *filename = NULL;
+ int namelen = 0;
+ int rc;
+
+ /* Here is a little hack to avoid sending REINT_RMENTRY to
+ * unsupported server, which might crash the server(LU-2730),
+ * Because both LVB_TYPE and REINT_RMENTRY will be supported
+ * on 2.4, we use OBD_CONNECT_LVB_TYPE to detect whether the
+ * server will support REINT_RMENTRY XXX*/
+ if (!(exp_connect_flags(sbi->ll_md_exp) & OBD_CONNECT_LVB_TYPE))
+ RETURN(-ENOTSUPP);
+
+ filename = ll_getname((const char *)arg);
+ if (IS_ERR(filename))
+ RETURN(PTR_ERR(filename));
+
+ namelen = strlen(filename);
+ if (namelen < 1)
+ GOTO(out_rmdir, rc = -EINVAL);
+
+ rc = ll_rmdir_entry(inode, filename, namelen);
+out_rmdir:
+ if (filename)
+ ll_putname(filename);
+ RETURN(rc);
+ }
+ case LL_IOC_LOV_SWAP_LAYOUTS:
+ RETURN(-EPERM);
+ case IOC_OBD_STATFS:
+ RETURN(ll_obd_statfs(inode, (void *)arg));
case LL_IOC_LOV_GETSTRIPE:
case LL_IOC_MDC_GETINFO:
case IOC_MDC_GETFILEINFO:
if (cmd == IOC_MDC_GETFILEINFO ||
cmd == IOC_MDC_GETFILESTRIPE) {
- filename = getname((const char *)arg);
+ filename = ll_getname((const char *)arg);
if (IS_ERR(filename))
RETURN(PTR_ERR(filename));
rc = ll_lov_getstripe_ea_info(inode, filename, &lmm,
&lmmsize, &request);
- } else {
- rc = ll_dir_getstripe(inode, &lmm, &lmmsize, &request);
- }
+ } else {
+ rc = ll_dir_getstripe(inode, (void **)&lmm, &lmmsize,
+ &request, 0);
+ }
if (request) {
body = req_capsule_server_get(&request->rq_pill,
lmdp = (struct lov_user_mds_data *)arg;
lump = &lmdp->lmd_lmm;
}
- if (cfs_copy_to_user(lump, lmm, lmmsize)) {
- if (cfs_copy_to_user(lump, lmm, sizeof(*lump)))
+ if (copy_to_user(lump, lmm, lmmsize)) {
+ if (copy_to_user(lump, lmm, sizeof(*lump)))
GOTO(out_req, rc = -EFAULT);
rc = -EOVERFLOW;
}
struct lov_user_mds_data *lmdp;
lstat_t st = { 0 };
- st.st_dev = inode->i_sb->s_dev;
- st.st_mode = body->mode;
- st.st_nlink = body->nlink;
- st.st_uid = body->uid;
- st.st_gid = body->gid;
- st.st_rdev = body->rdev;
- st.st_size = body->size;
- st.st_blksize = CFS_PAGE_SIZE;
- st.st_blocks = body->blocks;
- st.st_atime = body->atime;
- st.st_mtime = body->mtime;
- st.st_ctime = body->ctime;
- st.st_ino = inode->i_ino;
-
- lmdp = (struct lov_user_mds_data *)arg;
- if (cfs_copy_to_user(&lmdp->lmd_st, &st, sizeof(st)))
+ st.st_dev = inode->i_sb->s_dev;
+ st.st_mode = body->mbo_mode;
+ st.st_nlink = body->mbo_nlink;
+ st.st_uid = body->mbo_uid;
+ st.st_gid = body->mbo_gid;
+ st.st_rdev = body->mbo_rdev;
+ st.st_size = body->mbo_size;
+ st.st_blksize = PAGE_CACHE_SIZE;
+ st.st_blocks = body->mbo_blocks;
+ st.st_atime = body->mbo_atime;
+ st.st_mtime = body->mbo_mtime;
+ st.st_ctime = body->mbo_ctime;
+ st.st_ino = inode->i_ino;
+
+ lmdp = (struct lov_user_mds_data *)arg;
+ if (copy_to_user(&lmdp->lmd_st, &st, sizeof(st)))
GOTO(out_req, rc = -EFAULT);
}
out_req:
ptlrpc_req_finished(request);
if (filename)
- putname(filename);
+ ll_putname(filename);
return rc;
}
case IOC_LOV_GETINFO: {
if (rc)
RETURN(rc);
- OBD_ALLOC_LARGE(lmm, lmmsize);
- if (cfs_copy_from_user(lmm, lum, lmmsize))
- GOTO(free_lmm, rc = -EFAULT);
+ OBD_ALLOC_LARGE(lmm, lmmsize);
+ if (lmm == NULL)
+ RETURN(-ENOMEM);
+
+ if (copy_from_user(lmm, lum, lmmsize))
+ GOTO(free_lmm, rc = -EFAULT);
switch (lmm->lmm_magic) {
case LOV_USER_MAGIC_V1:
if (rc)
GOTO(free_lsm, rc);
- if (cfs_copy_to_user(&lumd->lmd_st, &st, sizeof(st)))
+ if (copy_to_user(&lumd->lmd_st, &st, sizeof(st)))
GOTO(free_lsm, rc = -EFAULT);
EXIT;
OBD_FREE_LARGE(lmm, lmmsize);
return rc;
}
- case OBD_IOC_LLOG_CATINFO: {
- RETURN(-EOPNOTSUPP);
- }
- case OBD_IOC_QUOTACHECK: {
+ case OBD_IOC_QUOTACHECK: {
struct obd_quotactl *oqctl;
int error = 0;
OBD_FREE_PTR(oqctl);
return error ?: rc;
}
- case OBD_IOC_POLL_QUOTACHECK: {
+ case OBD_IOC_POLL_QUOTACHECK: {
struct if_quotacheck *check;
if (!cfs_capable(CFS_CAP_SYS_ADMIN) ||
NULL);
if (rc) {
CDEBUG(D_QUOTA, "mdc ioctl %d failed: %d\n", cmd, rc);
- if (cfs_copy_to_user((void *)arg, check,
+ if (copy_to_user((void *)arg, check,
sizeof(*check)))
- CDEBUG(D_QUOTA, "cfs_copy_to_user failed\n");
+ CDEBUG(D_QUOTA, "copy_to_user failed\n");
GOTO(out_poll, rc);
}
NULL);
if (rc) {
CDEBUG(D_QUOTA, "osc ioctl %d failed: %d\n", cmd, rc);
- if (cfs_copy_to_user((void *)arg, check,
+ if (copy_to_user((void *)arg, check,
sizeof(*check)))
- CDEBUG(D_QUOTA, "cfs_copy_to_user failed\n");
+ CDEBUG(D_QUOTA, "copy_to_user failed\n");
GOTO(out_poll, rc);
}
out_poll:
OBD_FREE_PTR(check);
RETURN(rc);
}
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0)
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0)
case LL_IOC_QUOTACTL_18: {
/* copy the old 1.x quota struct for internal use, then copy
* back into old format struct. For 1.8 compatibility. */
if (!qctl_20)
GOTO(out_quotactl_18, rc = -ENOMEM);
- if (cfs_copy_from_user(qctl_18, (void *)arg, sizeof(*qctl_18)))
+ if (copy_from_user(qctl_18, (void *)arg, sizeof(*qctl_18)))
GOTO(out_quotactl_20, rc = -ENOMEM);
QCTL_COPY(qctl_20, qctl_18);
QCTL_COPY(qctl_18, qctl_20);
qctl_18->obd_uuid = qctl_20->obd_uuid;
- if (cfs_copy_to_user((void *)arg, qctl_18,
+ if (copy_to_user((void *)arg, qctl_18,
sizeof(*qctl_18)))
rc = -EFAULT;
}
}
#else
#warning "remove old LL_IOC_QUOTACTL_18 compatibility code"
-#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2,7,50,0) */
- case LL_IOC_QUOTACTL: {
+#endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 0) */
+ case OBD_IOC_QUOTACTL: {
struct if_quotactl *qctl;
OBD_ALLOC_PTR(qctl);
if (!qctl)
RETURN(-ENOMEM);
- if (cfs_copy_from_user(qctl, (void *)arg, sizeof(*qctl)))
+ if (copy_from_user(qctl, (void *)arg, sizeof(*qctl)))
GOTO(out_quotactl, rc = -EFAULT);
rc = quotactl_ioctl(sbi, qctl);
- if (rc == 0 && cfs_copy_to_user((void *)arg,qctl,sizeof(*qctl)))
+ if (rc == 0 && copy_to_user((void *)arg, qctl, sizeof(*qctl)))
rc = -EFAULT;
out_quotactl:
inode == inode->i_sb->s_root->d_inode) {
struct ll_file_data *fd = LUSTRE_FPRIVATE(file);
- LASSERT(fd != NULL);
- rc = rct_add(&sbi->ll_rct, cfs_curproc_pid(), arg);
- if (!rc)
- fd->fd_flags |= LL_FILE_RMTACL;
- RETURN(rc);
+ LASSERT(fd != NULL);
+ rc = rct_add(&sbi->ll_rct, current_pid(), arg);
+ if (!rc)
+ fd->fd_flags |= LL_FILE_RMTACL;
+ RETURN(rc);
} else
RETURN(0);
}
int count, vallen;
struct obd_export *exp;
- if (cfs_copy_from_user(&count, (int *)arg, sizeof(int)))
+ if (copy_from_user(&count, (int *)arg, sizeof(int)))
RETURN(-EFAULT);
/* get ost count when count is zero, get mdt count otherwise */
RETURN(rc);
}
- if (cfs_copy_to_user((int *)arg, &count, sizeof(int)))
+ if (copy_to_user((int *)arg, &count, sizeof(int)))
RETURN(-EFAULT);
RETURN(0);
}
case LL_IOC_PATH2FID:
- if (cfs_copy_to_user((void *)arg, ll_inode2fid(inode),
+ if (copy_to_user((void *)arg, ll_inode2fid(inode),
sizeof(struct lu_fid)))
RETURN(-EFAULT);
RETURN(0);
sizeof(struct ioc_changelog));
RETURN(rc);
case OBD_IOC_FID2PATH:
- RETURN(ll_fid2path(ll_i2mdexp(inode), (void *)arg));
- case LL_IOC_HSM_CT_START:
- rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
- sizeof(struct lustre_kernelcomm));
- RETURN(rc);
-
- default:
- RETURN(obd_iocontrol(cmd, sbi->ll_dt_exp,0,NULL,(void *)arg));
- }
+ RETURN(ll_fid2path(inode, (void *)arg));
+ case LL_IOC_HSM_REQUEST: {
+ struct hsm_user_request *hur;
+ ssize_t totalsize;
+
+ OBD_ALLOC_PTR(hur);
+ if (hur == NULL)
+ RETURN(-ENOMEM);
+
+ /* We don't know the true size yet; copy the fixed-size part */
+ if (copy_from_user(hur, (void *)arg, sizeof(*hur))) {
+ OBD_FREE_PTR(hur);
+ RETURN(-EFAULT);
+ }
+
+ /* Compute the whole struct size */
+ totalsize = hur_len(hur);
+ OBD_FREE_PTR(hur);
+ if (totalsize < 0)
+ RETURN(-E2BIG);
+
+ /* Final size will be more than double totalsize */
+ if (totalsize >= MDS_MAXREQSIZE / 3)
+ RETURN(-E2BIG);
+
+ OBD_ALLOC_LARGE(hur, totalsize);
+ if (hur == NULL)
+ RETURN(-ENOMEM);
+
+ /* Copy the whole struct */
+ if (copy_from_user(hur, (void *)arg, totalsize)) {
+ OBD_FREE_LARGE(hur, totalsize);
+ RETURN(-EFAULT);
+ }
+
+ if (hur->hur_request.hr_action == HUA_RELEASE) {
+ const struct lu_fid *fid;
+ struct inode *f;
+ int i;
+
+ for (i = 0; i < hur->hur_request.hr_itemcount; i++) {
+ fid = &hur->hur_user_item[i].hui_fid;
+ f = search_inode_for_lustre(inode->i_sb, fid);
+ if (IS_ERR(f)) {
+ rc = PTR_ERR(f);
+ break;
+ }
+
+ rc = ll_hsm_release(f);
+ iput(f);
+ if (rc != 0)
+ break;
+ }
+ } else {
+ rc = obd_iocontrol(cmd, ll_i2mdexp(inode), totalsize,
+ hur, NULL);
+ }
+
+ OBD_FREE_LARGE(hur, totalsize);
+
+ RETURN(rc);
+ }
+ case LL_IOC_HSM_PROGRESS: {
+ struct hsm_progress_kernel hpk;
+ struct hsm_progress hp;
+
+ if (copy_from_user(&hp, (void *)arg, sizeof(hp)))
+ RETURN(-EFAULT);
+
+ hpk.hpk_fid = hp.hp_fid;
+ hpk.hpk_cookie = hp.hp_cookie;
+ hpk.hpk_extent = hp.hp_extent;
+ hpk.hpk_flags = hp.hp_flags;
+ hpk.hpk_errval = hp.hp_errval;
+ hpk.hpk_data_version = 0;
+
+ /* File may not exist in Lustre; all progress
+ * reported to Lustre root */
+ rc = obd_iocontrol(cmd, sbi->ll_md_exp, sizeof(hpk), &hpk,
+ NULL);
+ RETURN(rc);
+ }
+ case LL_IOC_HSM_CT_START:
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ RETURN(-EPERM);
+
+ rc = copy_and_ioctl(cmd, sbi->ll_md_exp, (void *)arg,
+ sizeof(struct lustre_kernelcomm));
+ RETURN(rc);
+
+ case LL_IOC_HSM_COPY_START: {
+ struct hsm_copy *copy;
+ int rc;
+
+ OBD_ALLOC_PTR(copy);
+ if (copy == NULL)
+ RETURN(-ENOMEM);
+ if (copy_from_user(copy, (char *)arg, sizeof(*copy))) {
+ OBD_FREE_PTR(copy);
+ RETURN(-EFAULT);
+ }
+
+ rc = ll_ioc_copy_start(inode->i_sb, copy);
+ if (copy_to_user((char *)arg, copy, sizeof(*copy)))
+ rc = -EFAULT;
+
+ OBD_FREE_PTR(copy);
+ RETURN(rc);
+ }
+ case LL_IOC_HSM_COPY_END: {
+ struct hsm_copy *copy;
+ int rc;
+
+ OBD_ALLOC_PTR(copy);
+ if (copy == NULL)
+ RETURN(-ENOMEM);
+ if (copy_from_user(copy, (char *)arg, sizeof(*copy))) {
+ OBD_FREE_PTR(copy);
+ RETURN(-EFAULT);
+ }
+
+ rc = ll_ioc_copy_end(inode->i_sb, copy);
+ if (copy_to_user((char *)arg, copy, sizeof(*copy)))
+ rc = -EFAULT;
+
+ OBD_FREE_PTR(copy);
+ RETURN(rc);
+ }
+ case LL_IOC_MIGRATE: {
+ char *buf = NULL;
+ const char *filename;
+ int namelen = 0;
+ int len;
+ int rc;
+ int mdtidx;
+
+ rc = obd_ioctl_getdata(&buf, &len, (void __user *)arg);
+ if (rc < 0)
+ RETURN(rc);
+
+ data = (struct obd_ioctl_data *)buf;
+ if (data->ioc_inlbuf1 == NULL || data->ioc_inlbuf2 == NULL ||
+ data->ioc_inllen1 == 0 || data->ioc_inllen2 == 0)
+ GOTO(migrate_free, rc = -EINVAL);
+
+ filename = data->ioc_inlbuf1;
+ namelen = data->ioc_inllen1;
+ /* \0 is packed at the end of filename */
+ if (namelen < 1 || namelen != strlen(filename) + 1)
+ GOTO(migrate_free, rc = -EINVAL);
+
+ if (data->ioc_inllen2 != sizeof(mdtidx))
+ GOTO(migrate_free, rc = -EINVAL);
+ mdtidx = *(int *)data->ioc_inlbuf2;
+
+ rc = ll_migrate(inode, file, mdtidx, filename, namelen - 1);
+migrate_free:
+ obd_ioctl_freedata(buf, len);
+
+ RETURN(rc);
+ }
+ default:
+ RETURN(obd_iocontrol(cmd, sbi->ll_dt_exp, 0, NULL,
+ (void *)arg));
+ }
}
static loff_t ll_dir_seek(struct file *file, loff_t offset, int origin)
loff_t ret = -EINVAL;
ENTRY;
- cfs_mutex_lock(&inode->i_mutex);
+ mutex_lock(&inode->i_mutex);
switch (origin) {
case SEEK_SET:
break;
if (offset != file->f_pos) {
if ((api32 && offset == LL_DIR_END_OFF_32BIT) ||
(!api32 && offset == LL_DIR_END_OFF))
- fd->fd_dir.lfd_pos = MDS_DIR_END_OFF;
+ fd->lfd_pos = MDS_DIR_END_OFF;
else if (api32 && sbi->ll_flags & LL_SBI_64BIT_HASH)
- fd->fd_dir.lfd_pos = offset << 32;
+ fd->lfd_pos = offset << 32;
else
- fd->fd_dir.lfd_pos = offset;
+ fd->lfd_pos = offset;
file->f_pos = offset;
file->f_version = 0;
}
GOTO(out, ret);
out:
- cfs_mutex_unlock(&inode->i_mutex);
+ mutex_unlock(&inode->i_mutex);
return ret;
}
-int ll_dir_open(struct inode *inode, struct file *file)
+static int ll_dir_open(struct inode *inode, struct file *file)
{
ENTRY;
RETURN(ll_file_open(inode, file));
}
-int ll_dir_release(struct inode *inode, struct file *file)
+static int ll_dir_release(struct inode *inode, struct file *file)
{
ENTRY;
RETURN(ll_file_release(inode, file));
}
-struct file_operations ll_dir_operations = {
- .llseek = ll_dir_seek,
- .open = ll_dir_open,
- .release = ll_dir_release,
- .read = generic_read_dir,
- .readdir = ll_readdir,
- .unlocked_ioctl = ll_dir_ioctl,
- .fsync = ll_fsync,
+const struct file_operations ll_dir_operations = {
+ .llseek = ll_dir_seek,
+ .open = ll_dir_open,
+ .release = ll_dir_release,
+ .read = generic_read_dir,
+#ifdef HAVE_DIR_CONTEXT
+ .iterate = ll_iterate,
+#else
+ .readdir = ll_readdir,
+#endif
+ .unlocked_ioctl = ll_dir_ioctl,
+ .fsync = ll_fsync,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff