* After client receives reply, several pages will be integrated into dir page
* 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().
+ * mdc_adjust_dirpages().
*
*/
-/**
- * The following three APIs will be used by llite to iterate directory
- * entries from MDC dir page caches.
- *
- * ll_dir_entry_start(next) will lookup(return) entry by op_hash_offset.
- * To avoid extra memory allocation, the @entry will be pointed to
- * the dir entries in MDC page directly, so these pages can not be released
- * until the entry has been accessed in ll_readdir(or statahead).
- *
- * The iterate process will be
- *
- * ll_dir_entry_start: locate the page in MDC, and return the first entry.
- * hold the page.
- *
- * ll_dir_entry_next: return the next entry in the current page, if it reaches
- * to the end, release current page.
- *
- * ll_dir_entry_end: release the last page.
- **/
-struct lu_dirent *ll_dir_entry_start(struct inode *dir,
- struct md_op_data *op_data,
- struct page **ppage)
+struct page *ll_get_dir_page(struct inode *dir, struct md_op_data *op_data,
+ __u64 offset, struct ll_dir_chain *chain)
{
- struct lu_dirent *entry;
- struct md_callback cb_op;
- int rc;
+ struct md_callback cb_op;
+ struct page *page;
+ int rc;
- LASSERT(*ppage == NULL);
cb_op.md_blocking_ast = ll_md_blocking_ast;
- rc = md_read_entry(ll_i2mdexp(dir), op_data, &cb_op, &entry, ppage);
+ rc = md_read_page(ll_i2mdexp(dir), op_data, &cb_op, offset, &page);
if (rc != 0)
- entry = ERR_PTR(rc);
- return entry;
+ return ERR_PTR(rc);
+
+ return page;
}
-struct lu_dirent *ll_dir_entry_next(struct inode *dir,
- struct md_op_data *op_data,
- struct lu_dirent *ent,
- struct page **ppage)
+void ll_release_page(struct inode *inode, struct page *page,
+ bool remove)
{
- struct lu_dirent *entry;
- struct md_callback cb_op;
- int rc;
+ 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;
+ }
- LASSERT(*ppage != NULL);
- cb_op.md_blocking_ast = ll_md_blocking_ast;
- op_data->op_hash_offset = le64_to_cpu(ent->lde_hash);
- kunmap(*ppage);
- page_cache_release(*ppage);
- *ppage = NULL;
- rc = md_read_entry(ll_i2mdexp(dir), op_data, &cb_op, &entry, ppage);
- if (rc != 0)
- entry = ERR_PTR(rc);
- return entry;
+ if (remove) {
+ lock_page(page);
+ if (likely(page->mapping != NULL))
+ truncate_complete_page(page->mapping, page);
+ unlock_page(page);
+ }
+ page_cache_release(page);
}
#ifdef HAVE_DIR_CONTEXT
-int ll_dir_read(struct inode *inode, struct md_op_data *op_data,
+int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
struct dir_context *ctx)
{
#else
-int ll_dir_read(struct inode *inode, struct md_op_data *op_data,
+int ll_dir_read(struct inode *inode, __u64 *ppos, struct md_op_data *op_data,
void *cookie, filldir_t filldir)
{
#endif
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct ll_dir_chain chain;
- struct lu_dirent *ent;
- int api32 = ll_need_32bit_api(sbi);
- int hash64 = sbi->ll_flags & LL_SBI_64BIT_HASH;
- int done = 0;
- int rc = 0;
- __u64 hash = MDS_DIR_END_OFF;
- __u64 last_hash = MDS_DIR_END_OFF;
- struct page *page = NULL;
+ 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);
- for (ent = ll_dir_entry_start(inode, op_data, &page);
- ent != NULL && !IS_ERR(ent) && !done;
- ent = ll_dir_entry_next(inode, op_data, ent, &page)) {
- __u16 type;
- int namelen;
- struct lu_fid fid;
- __u64 lhash;
- __u64 ino;
-
- hash = le64_to_cpu(ent->lde_hash);
- if (hash < op_data->op_hash_offset)
- /*
- * Skip until we find target hash
- * value.
- */
- continue;
- namelen = le16_to_cpu(ent->lde_namelen);
- if (namelen == 0)
- /*
- * Skip dummy record.
- */
- continue;
+ ll_dir_chain_init(&chain);
- 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);
+ 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
- /* 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 = !dir_emit(ctx, ent->lde_name, namelen, ino, type);
+ ctx->pos = lhash;
+ done = !dir_emit(ctx, ent->lde_name, namelen, ino,
+ type);
#else
- done = filldir(cookie, ent->lde_name, namelen, lhash,
- ino, type);
+ done = filldir(cookie, ent->lde_name, namelen, lhash,
+ ino, type);
#endif
+ }
+
if (done) {
- if (op_data->op_hash_offset != MDS_DIR_END_OFF)
- op_data->op_hash_offset = last_hash;
+ pos = hash;
+ ll_release_page(inode, page, false);
break;
- } else {
- last_hash = hash;
}
- }
- if (IS_ERR(ent))
- rc = PTR_ERR(ent);
-
- if (page != NULL) {
- kunmap(page);
- page_cache_release(page);
+ 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);
}
if (IS_ERR(op_data))
GOTO(out, rc = PTR_ERR(op_data));
- op_data->op_hash_offset = pos;
- op_data->op_max_pages = sbi->ll_md_brw_size >> PAGE_CACHE_SHIFT;
+ 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, op_data, ctx);
+ rc = ll_dir_read(inode, &pos, op_data, ctx);
pos = ctx->pos;
#else
- rc = ll_dir_read(inode, op_data, cookie, filldir);
+ rc = ll_dir_read(inode, &pos, op_data, cookie, filldir);
#endif
if (lfd != NULL)
- lfd->lfd_pos = op_data->op_hash_offset;
+ lfd->lfd_pos = pos;
if (pos == MDS_DIR_END_OFF) {
if (api32)
pos = LL_DIR_END_OFF;
} else {
if (api32 && hash64)
- pos = op_data->op_hash_offset >> 32;
- else
- pos = op_data->op_hash_offset;
+ pos = pos >> 32;
}
#ifdef HAVE_DIR_CONTEXT
ctx->pos = pos;
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;
}
-static int ll_dir_setdirstripe(struct inode *dir, struct lmv_user_md *lump,
- const char *filename)
+/**
+ * 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 ptlrpc_request *request = NULL;
struct md_op_data *op_data;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- int mode;
+ struct ll_sb_info *sbi = ll_i2sbi(parent);
int err;
ENTRY;
CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p) name %s"
"stripe_offset %d, stripe_count: %u\n",
- PFID(ll_inode2fid(dir)), dir, filename,
+ 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);
- mode = (0755 & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
- op_data = ll_prep_md_op_data(NULL, dir, NULL, filename,
- strlen(filename), mode, LUSTRE_OPC_MKDIR,
+ 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));
body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
LASSERT(body != NULL);
- lmm_size = body->eadatasize;
+ lmm_size = body->mbo_eadatasize;
- if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
+ if (!(body->mbo_valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) ||
lmm_size == 0) {
GOTO(out, rc = -ENODATA);
}
if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm);
break;
- case LMV_MAGIC:
- case LMV_MAGIC_MIGRATE:
- if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC))
+ 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:
char *filename;
int namelen = 0;
int lumlen = 0;
+ umode_t mode;
int len;
int rc;
GOTO(lmv_out_free, rc = -EINVAL);
}
- /**
- * ll_dir_setdirstripe will be used to set dir stripe
- * mdc_create--->mdt_reint_create (with dirstripe)
- */
- rc = ll_dir_setdirstripe(inode, lum, filename);
+#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 = ll_dir_getstripe(inode, (void **)&lmm, &lmmsize, &request,
valid);
- if (rc != 0 && rc != -ENODATA)
+ if (rc != 0)
GOTO(finish_req, rc);
/* Get default LMV EA */
GOTO(finish_req, rc);
}
- /* Get normal LMV EA */
- if (rc == -ENODATA) {
- stripe_count = 1;
- } else {
- LASSERT(lmm != NULL);
- stripe_count = lmv_mds_md_stripe_count_get(lmm);
- }
-
+ 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);
- tmp->lum_magic = LMV_MAGIC_V1;
- tmp->lum_stripe_count = 1;
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;
- tmp->lum_objects[0].lum_mds = mdt_index;
- tmp->lum_objects[0].lum_fid = *ll_inode2fid(inode);
- for (i = 1; i < stripe_count; i++) {
- struct lmv_mds_md_v1 *lmm1;
-
- lmm1 = &lmm->lmv_md_v1;
- mdt_index = ll_get_mdt_idx_by_fid(sbi,
- &lmm1->lmv_stripe_fids[i]);
+ 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 = lmm1->lmv_stripe_fids[i];
+ tmp->lum_objects[i].lum_fid = *fid;
tmp->lum_stripe_count++;
}
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 = PAGE_CACHE_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;
+ 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);
}
RETURN(ll_fid2path(inode, (void *)arg));
case LL_IOC_HSM_REQUEST: {
struct hsm_user_request *hur;
- int totalsize;
+ ssize_t totalsize;
OBD_ALLOC_PTR(hur);
if (hur == NULL)
/* 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)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff