* Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
# include <linux/pagemap.h>
# include <linux/miscdevice.h>
# include <linux/init.h>
+# include <linux/utsname.h>
#else
# include <liblustre.h>
#endif
#include <lustre_acl.h>
+#include <lustre_ioctl.h>
#include <obd_class.h>
+#include <lustre_lmv.h>
#include <lustre_fid.h>
-#include <md_object.h>
#include <lprocfs_status.h>
#include <lustre_param.h>
#include <lustre_log.h>
+#include <cl_object.h>
+#include <lclient.h>
#include "mdc_internal.h"
}
}
+static inline int mdc_queue_wait(struct ptlrpc_request *req)
+{
+ struct client_obd *cli = &req->rq_import->imp_obd->u.cli;
+ int rc;
+
+ /* obd_get_request_slot() ensures that this client has no more
+ * than cl_max_rpcs_in_flight RPCs simultaneously inf light
+ * against an MDT. */
+ rc = obd_get_request_slot(cli);
+ if (rc != 0)
+ return rc;
+
+ rc = ptlrpc_queue_wait(req);
+ obd_put_request_slot(cli);
+
+ return rc;
+}
+
/* Helper that implements most of mdc_getstatus and signal_completed_replay. */
/* XXX this should become mdc_get_info("key"), sending MDS_GET_INFO RPC */
static int send_getstatus(struct obd_import *imp, struct lu_fid *rootfid,
CDEBUG(D_NET, "mode: %o\n", body->mode);
- if (body->eadatasize != 0) {
- mdc_update_max_ea_from_body(exp, body);
-
- eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
- body->eadatasize);
- if (eadata == NULL)
- RETURN(-EPROTO);
- }
+ mdc_update_max_ea_from_body(exp, body);
+ if (body->eadatasize != 0) {
+ eadata = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
+ body->eadatasize);
+ if (eadata == NULL)
+ RETURN(-EPROTO);
+ }
if (body->valid & OBD_MD_FLRMTPERM) {
struct mdt_remote_perm *perm;
int rc;
ENTRY;
+ /* Single MDS without an LMV case */
+ if (op_data->op_flags & MF_GET_MDT_IDX) {
+ op_data->op_mds = 0;
+ RETURN(0);
+ }
*request = NULL;
req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_GETATTR);
if (req == NULL)
input_size);
}
- rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
- if (rc) {
- ptlrpc_request_free(req);
- RETURN(rc);
- }
+ /* Flush local XATTR locks to get rid of a possible cancel RPC */
+ if (opcode == MDS_REINT && fid_is_sane(fid) &&
+ exp->exp_connect_data.ocd_ibits_known & MDS_INODELOCK_XATTR) {
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
+ int count;
+
+ /* Without that packing would fail */
+ if (input_size == 0)
+ req_capsule_set_size(&req->rq_pill, &RMF_EADATA,
+ RCL_CLIENT, 0);
+
+ count = mdc_resource_get_unused(exp, fid,
+ &cancels, LCK_EX,
+ MDS_INODELOCK_XATTR);
+
+ rc = mdc_prep_elc_req(exp, req, MDS_REINT, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ } else {
+ rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, opcode);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+ }
if (opcode == MDS_REINT) {
struct mdt_rec_setxattr *rec;
CLASSERT(sizeof(struct mdt_rec_setxattr) ==
sizeof(struct mdt_rec_reint));
- rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
- rec->sx_opcode = REINT_SETXATTR;
- /* TODO:
- * cfs_curproc_fs{u,g}id() should replace
- * current->fs{u,g}id for portability.
- */
- rec->sx_fsuid = cfs_curproc_fsuid();
- rec->sx_fsgid = cfs_curproc_fsgid();
- rec->sx_cap = cfs_curproc_cap_pack();
- rec->sx_suppgid1 = suppgid;
+ rec = req_capsule_client_get(&req->rq_pill, &RMF_REC_REINT);
+ rec->sx_opcode = REINT_SETXATTR;
+ rec->sx_fsuid = from_kuid(&init_user_ns, current_fsuid());
+ rec->sx_fsgid = from_kgid(&init_user_ns, current_fsgid());
+ rec->sx_cap = cfs_curproc_cap_pack();
+ rec->sx_suppgid1 = suppgid;
rec->sx_suppgid2 = -1;
rec->sx_fid = *fid;
rec->sx_valid = valid | OBD_MD_FLCTIME;
if (!buf)
RETURN(-EPROTO);
- acl = posix_acl_from_xattr(buf, body->aclsize);
+ acl = posix_acl_from_xattr(&init_user_ns, buf, body->aclsize);
if (IS_ERR(acl)) {
rc = PTR_ERR(acl);
CERROR("convert xattr to acl: %d\n", rc);
"but eadatasize 0\n");
RETURN(-EPROTO);
}
- if (md->body->valid & OBD_MD_MEA) {
- lmvsize = md->body->eadatasize;
- lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
- lmvsize);
- if (!lmv)
- GOTO(out, rc = -EPROTO);
-
- rc = obd_unpackmd(md_exp, (void *)&md->mea, lmv,
- lmvsize);
- if (rc < 0)
- GOTO(out, rc);
-
- if (rc < sizeof(*md->mea)) {
- CDEBUG(D_INFO, "size too small: "
- "rc < sizeof(*md->mea) (%d < %d)\n",
- rc, (int)sizeof(*md->mea));
- GOTO(out, rc = -EPROTO);
- }
- }
+ if (md->body->valid & OBD_MD_MEA) {
+ lmvsize = md->body->eadatasize;
+ lmv = req_capsule_server_sized_get(pill, &RMF_MDT_MD,
+ lmvsize);
+ if (!lmv)
+ GOTO(out, rc = -EPROTO);
+
+ rc = obd_unpackmd(md_exp, (void *)&md->lmv, lmv,
+ lmvsize);
+ if (rc < 0)
+ GOTO(out, rc);
+
+ if (rc < sizeof(*md->lmv)) {
+ CDEBUG(D_INFO, "size too small: "
+ "rc < sizeof(*md->lmv) (%d < %d)\n",
+ rc, (int)sizeof(*md->lmv));
+ GOTO(out, rc = -EPROTO);
+ }
+ }
}
rc = 0;
}
int mdc_set_open_replay_data(struct obd_export *exp,
- struct obd_client_handle *och,
- struct ptlrpc_request *open_req)
-{
- struct md_open_data *mod;
- struct mdt_rec_create *rec;
- struct mdt_body *body;
- struct obd_import *imp = open_req->rq_import;
- ENTRY;
+ struct obd_client_handle *och,
+ struct lookup_intent *it)
+{
+ struct md_open_data *mod;
+ struct mdt_rec_create *rec;
+ struct mdt_body *body;
+ struct ptlrpc_request *open_req = it->d.lustre.it_data;
+ struct obd_import *imp = open_req->rq_import;
+ ENTRY;
if (!open_req->rq_replay)
RETURN(0);
spin_lock(&open_req->rq_lock);
och->och_mod = mod;
mod->mod_och = och;
+ mod->mod_is_create = it_disposition(it, DISP_OPEN_CREATE) ||
+ it_disposition(it, DISP_OPEN_STRIPE);
mod->mod_open_req = open_req;
open_req->rq_cb_data = mod;
open_req->rq_commit_cb = mdc_commit_open;
RETURN(0);
}
+static void mdc_free_open(struct md_open_data *mod)
+{
+ int committed = 0;
+
+ if (mod->mod_is_create == 0 &&
+ imp_connect_disp_stripe(mod->mod_open_req->rq_import))
+ committed = 1;
+
+ LASSERT(mod->mod_open_req->rq_replay == 0);
+
+ DEBUG_REQ(D_RPCTRACE, mod->mod_open_req, "free open request\n");
+
+ ptlrpc_request_committed(mod->mod_open_req, committed);
+ if (mod->mod_close_req)
+ ptlrpc_request_committed(mod->mod_close_req, committed);
+}
+
int mdc_clear_open_replay_data(struct obd_export *exp,
struct obd_client_handle *och)
{
RETURN(0);
LASSERT(mod != LP_POISON);
+ LASSERT(mod->mod_open_req != NULL);
+ mdc_free_open(mod);
mod->mod_och = NULL;
och->och_mod = NULL;
int mdc_close(struct obd_export *exp, struct md_op_data *op_data,
struct md_open_data *mod, struct ptlrpc_request **request)
{
- struct obd_device *obd = class_exp2obd(exp);
- struct ptlrpc_request *req;
- int rc;
- ENTRY;
+ struct obd_device *obd = class_exp2obd(exp);
+ struct ptlrpc_request *req;
+ struct req_format *req_fmt;
+ int rc;
+ int saved_rc = 0;
+ ENTRY;
- *request = NULL;
- req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_CLOSE);
+ req_fmt = &RQF_MDS_CLOSE;
+ if (op_data->op_bias & MDS_HSM_RELEASE) {
+ req_fmt = &RQF_MDS_RELEASE_CLOSE;
+
+ /* allocate a FID for volatile file */
+ rc = mdc_fid_alloc(NULL, exp, &op_data->op_fid2, op_data);
+ if (rc < 0) {
+ CERROR("%s: "DFID" failed to allocate FID: %d\n",
+ obd->obd_name, PFID(&op_data->op_fid1), rc);
+ /* save the errcode and proceed to close */
+ saved_rc = rc;
+ }
+ }
+
+ *request = NULL;
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp), req_fmt);
if (req == NULL)
RETURN(-ENOMEM);
mdc_close_pack(req, op_data);
- req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
- obd->u.cli.cl_max_mds_easize);
- req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
- obd->u.cli.cl_max_mds_cookiesize);
+ req_capsule_set_size(&req->rq_pill, &RMF_MDT_MD, RCL_SERVER,
+ obd->u.cli.cl_default_mds_easize);
+ req_capsule_set_size(&req->rq_pill, &RMF_LOGCOOKIES, RCL_SERVER,
+ obd->u.cli.cl_default_mds_cookiesize);
ptlrpc_request_set_replen(req);
}
*request = req;
mdc_close_handle_reply(req, op_data, rc);
- RETURN(rc);
+ RETURN(rc < 0 ? rc : saved_rc);
}
int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data,
if (mod) {
if (rc != 0)
mod->mod_close_req = NULL;
+ LASSERT(mod->mod_open_req != NULL);
+ mdc_free_open(mod);
+
/* Since now, mod is accessed through setattr req only,
* thus DW req does not keep a reference on mod anymore. */
obd_mod_put(mod);
req->rq_request_portal = MDS_READPAGE_PORTAL;
ptlrpc_at_set_req_timeout(req);
- desc = ptlrpc_prep_bulk_imp(req, 1, BULK_GET_SOURCE, MDS_BULK_PORTAL);
- if (desc == NULL)
- GOTO(out, rc = -ENOMEM);
+ desc = ptlrpc_prep_bulk_imp(req, 1, 1,BULK_GET_SOURCE, MDS_BULK_PORTAL);
+ if (desc == NULL)
+ GOTO(out, rc = -ENOMEM);
/* NB req now owns desc and will free it when it gets freed. */
ptlrpc_prep_bulk_page(desc, (struct page *)page, 0, offset);
EXPORT_SYMBOL(mdc_sendpage);
#endif
-int mdc_readpage(struct obd_export *exp, struct md_op_data *op_data,
- struct page **pages, struct ptlrpc_request **request)
-{
- struct ptlrpc_request *req;
- struct ptlrpc_bulk_desc *desc;
- int i;
- cfs_waitq_t waitq;
- int resends = 0;
- struct l_wait_info lwi;
- int rc;
- ENTRY;
+static int mdc_getpage(struct obd_export *exp, const struct lu_fid *fid,
+ __u64 offset, struct obd_capa *oc,
+ struct page **pages, int npages,
+ struct ptlrpc_request **request)
+{
+ struct ptlrpc_request *req;
+ struct ptlrpc_bulk_desc *desc;
+ int i;
+ wait_queue_head_t waitq;
+ int resends = 0;
+ struct l_wait_info lwi;
+ int rc;
+ ENTRY;
- *request = NULL;
- cfs_waitq_init(&waitq);
+ *request = NULL;
+ init_waitqueue_head(&waitq);
restart_bulk:
- req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
- if (req == NULL)
- RETURN(-ENOMEM);
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp), &RQF_MDS_READPAGE);
+ if (req == NULL)
+ RETURN(-ENOMEM);
- mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
+ mdc_set_capa_size(req, &RMF_CAPA1, oc);
- rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
- if (rc) {
- ptlrpc_request_free(req);
- RETURN(rc);
- }
+ rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_READPAGE);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
- req->rq_request_portal = MDS_READPAGE_PORTAL;
- ptlrpc_at_set_req_timeout(req);
+ req->rq_request_portal = MDS_READPAGE_PORTAL;
+ ptlrpc_at_set_req_timeout(req);
- desc = ptlrpc_prep_bulk_imp(req, op_data->op_npages, BULK_PUT_SINK,
- MDS_BULK_PORTAL);
- if (desc == NULL) {
- ptlrpc_request_free(req);
- RETURN(-ENOMEM);
- }
+ desc = ptlrpc_prep_bulk_imp(req, npages, 1, BULK_PUT_SINK,
+ MDS_BULK_PORTAL);
+ if (desc == NULL) {
+ ptlrpc_request_free(req);
+ RETURN(-ENOMEM);
+ }
- /* NB req now owns desc and will free it when it gets freed */
- for (i = 0; i < op_data->op_npages; i++)
- ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, CFS_PAGE_SIZE);
+ /* NB req now owns desc and will free it when it gets freed */
+ for (i = 0; i < npages; i++)
+ ptlrpc_prep_bulk_page_pin(desc, pages[i], 0, PAGE_CACHE_SIZE);
- mdc_readdir_pack(req, op_data->op_offset,
- CFS_PAGE_SIZE * op_data->op_npages,
- &op_data->op_fid1, op_data->op_capa1);
+ mdc_readdir_pack(req, offset, PAGE_CACHE_SIZE * npages, fid, oc);
- ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- ptlrpc_req_finished(req);
- if (rc != -ETIMEDOUT)
- RETURN(rc);
+ ptlrpc_request_set_replen(req);
+ rc = ptlrpc_queue_wait(req);
+ if (rc) {
+ ptlrpc_req_finished(req);
+ if (rc != -ETIMEDOUT)
+ RETURN(rc);
+
+ resends++;
+ if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
+ CERROR("%s: too many resend retries: rc = %d\n",
+ exp->exp_obd->obd_name, -EIO);
+ RETURN(-EIO);
+ }
+ lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL,
+ NULL);
+ l_wait_event(waitq, 0, &lwi);
- resends++;
- if (!client_should_resend(resends, &exp->exp_obd->u.cli)) {
- CERROR("too many resend retries, returning error\n");
- RETURN(-EIO);
- }
- lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(resends), NULL, NULL, NULL);
- l_wait_event(waitq, 0, &lwi);
+ goto restart_bulk;
+ }
- goto restart_bulk;
- }
+ rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
+ req->rq_bulk->bd_nob_transferred);
+ if (rc < 0) {
+ ptlrpc_req_finished(req);
+ RETURN(rc);
+ }
- rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk,
- req->rq_bulk->bd_nob_transferred);
- if (rc < 0) {
- ptlrpc_req_finished(req);
- RETURN(rc);
- }
+ if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
+ CERROR("%s: unexpected bytes transferred: %d (%ld expected)\n",
+ exp->exp_obd->obd_name, req->rq_bulk->bd_nob_transferred,
+ PAGE_CACHE_SIZE * npages);
+ ptlrpc_req_finished(req);
+ RETURN(-EPROTO);
+ }
- if (req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK) {
- CERROR("Unexpected # bytes transferred: %d (%ld expected)\n",
- req->rq_bulk->bd_nob_transferred,
- CFS_PAGE_SIZE * op_data->op_npages);
- ptlrpc_req_finished(req);
- RETURN(-EPROTO);
- }
+ *request = req;
+ RETURN(0);
+}
- *request = req;
- RETURN(0);
+#ifdef __KERNEL__
+static void mdc_release_page(struct page *page, int remove)
+{
+ if (remove) {
+ lock_page(page);
+ if (likely(page->mapping != NULL))
+ truncate_complete_page(page->mapping, page);
+ unlock_page(page);
+ }
+ page_cache_release(page);
+}
+
+static struct page *mdc_page_locate(struct address_space *mapping, __u64 *hash,
+ __u64 *start, __u64 *end, int hash64)
+{
+ /*
+ * 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;
+
+ spin_lock_irq(&mapping->tree_lock);
+ found = radix_tree_gang_lookup(&mapping->page_tree,
+ (void **)&page, offset, 1);
+ if (found > 0) {
+ struct lu_dirpage *dp;
+
+ page_cache_get(page);
+ spin_unlock_irq(&mapping->tree_lock);
+ /*
+ * 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
+ * mdc_read_page_remote does synchronous io.
+ */
+ wait_on_page_locked(page);
+ if (PageUptodate(page)) {
+ dp = 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);
+ }
+ if (unlikely(*start == 1 && *hash == 0))
+ *hash = *start;
+ else
+ LASSERTF(*start <= *hash, "start = "LPX64
+ ",end = "LPX64",hash = "LPX64"\n",
+ *start, *end, *hash);
+ CDEBUG(D_VFSTRACE, "offset %lx ["LPX64" "LPX64"],"
+ " hash "LPX64"\n", offset, *start, *end, *hash);
+ if (*hash > *end) {
+ kunmap(page);
+ mdc_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.
+ */
+ kunmap(page);
+ mdc_release_page(page,
+ le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
+ page = NULL;
+ }
+ } else {
+ page_cache_release(page);
+ page = ERR_PTR(-EIO);
+ }
+ } else {
+ spin_unlock_irq(&mapping->tree_lock);
+ page = NULL;
+ }
+ return page;
+}
+
+/*
+ * Adjust a set of pages, each page containing an array of lu_dirpages,
+ * so that each page can be used as a single logical lu_dirpage.
+ *
+ * A lu_dirpage is laid out as follows, where s = ldp_hash_start,
+ * e = ldp_hash_end, f = ldp_flags, p = padding, and each "ent" is a
+ * struct lu_dirent. It has size up to LU_PAGE_SIZE. The ldp_hash_end
+ * value is used as a cookie to request the next lu_dirpage in a
+ * directory listing that spans multiple pages (two in this example):
+ * ________
+ * | |
+ * .|--------v------- -----.
+ * |s|e|f|p|ent|ent| ... |ent|
+ * '--|-------------- -----' Each CFS_PAGE contains a single
+ * '------. lu_dirpage.
+ * .---------v------- -----.
+ * |s|e|f|p|ent| 0 | ... | 0 |
+ * '----------------- -----'
+ *
+ * However, on hosts where the native VM page size (PAGE_CACHE_SIZE) is
+ * larger than LU_PAGE_SIZE, a single host page may contain multiple
+ * lu_dirpages. After reading the lu_dirpages from the MDS, the
+ * ldp_hash_end of the first lu_dirpage refers to the one immediately
+ * after it in the same CFS_PAGE (arrows simplified for brevity, but
+ * in general e0==s1, e1==s2, etc.):
+ *
+ * .-------------------- -----.
+ * |s0|e0|f0|p|ent|ent| ... |ent|
+ * |---v---------------- -----|
+ * |s1|e1|f1|p|ent|ent| ... |ent|
+ * |---v---------------- -----| Here, each CFS_PAGE contains
+ * ... multiple lu_dirpages.
+ * |---v---------------- -----|
+ * |s'|e'|f'|p|ent|ent| ... |ent|
+ * '---|---------------- -----'
+ * v
+ * .----------------------------.
+ * | next CFS_PAGE |
+ *
+ * This structure is transformed into a single logical lu_dirpage as follows:
+ *
+ * - Replace e0 with e' so the request for the next lu_dirpage gets the page
+ * labeled 'next CFS_PAGE'.
+ *
+ * - Copy the LDF_COLLIDE flag from f' to f0 to correctly reflect whether
+ * a hash collision with the next page exists.
+ *
+ * - Adjust the lde_reclen of the ending entry of each lu_dirpage to span
+ * to the first entry of the next lu_dirpage.
+ */
+#if PAGE_CACHE_SIZE > LU_PAGE_SIZE
+static void mdc_adjust_dirpages(struct page **pages, int cfs_pgs, int lu_pgs)
+{
+ int i;
+
+ for (i = 0; i < cfs_pgs; i++) {
+ struct lu_dirpage *dp = kmap(pages[i]);
+ struct lu_dirpage *first = dp;
+ struct lu_dirent *end_dirent = NULL;
+ struct lu_dirent *ent;
+ __u64 hash_end = le64_to_cpu(dp->ldp_hash_end);
+ __u32 flags = le32_to_cpu(dp->ldp_flags);
+
+ while (--lu_pgs > 0) {
+ ent = lu_dirent_start(dp);
+ for (end_dirent = ent; ent != NULL;
+ end_dirent = ent, ent = lu_dirent_next(ent));
+
+ /* Advance dp to next lu_dirpage. */
+ dp = (struct lu_dirpage *)((char *)dp + LU_PAGE_SIZE);
+
+ /* Check if we've reached the end of the CFS_PAGE. */
+ if (!((unsigned long)dp & ~CFS_PAGE_MASK))
+ break;
+
+ /* Save the hash and flags of this lu_dirpage. */
+ hash_end = le64_to_cpu(dp->ldp_hash_end);
+ flags = le32_to_cpu(dp->ldp_flags);
+
+ /* Check if lu_dirpage contains no entries. */
+ if (end_dirent == NULL)
+ break;
+
+ /* Enlarge the end entry lde_reclen from 0 to
+ * first entry of next lu_dirpage. */
+ LASSERT(le16_to_cpu(end_dirent->lde_reclen) == 0);
+ end_dirent->lde_reclen =
+ cpu_to_le16((char *)(dp->ldp_entries) -
+ (char *)end_dirent);
+ }
+
+ first->ldp_hash_end = hash_end;
+ first->ldp_flags &= ~cpu_to_le32(LDF_COLLIDE);
+ first->ldp_flags |= flags & cpu_to_le32(LDF_COLLIDE);
+
+ kunmap(pages[i]);
+ }
+ LASSERTF(lu_pgs == 0, "left = %d", lu_pgs);
+}
+#else
+#define mdc_adjust_dirpages(pages, cfs_pgs, lu_pgs) do {} while (0)
+#endif /* PAGE_CACHE_SIZE > LU_PAGE_SIZE */
+
+/* parameters for readdir page */
+struct readpage_param {
+ struct md_op_data *rp_mod;
+ __u64 rp_off;
+ int rp_hash64;
+ struct obd_export *rp_exp;
+ struct md_callback *rp_cb;
+};
+
+/**
+ * Read pages from server.
+ *
+ * Page in MDS_READPAGE RPC is packed in LU_PAGE_SIZE, and each page contains
+ * 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.
+ **/
+static int mdc_read_page_remote(void *data, struct page *page0)
+{
+ struct readpage_param *rp = data;
+ struct page **page_pool;
+ struct page *page;
+ struct lu_dirpage *dp;
+ int rd_pgs = 0; /* number of pages read actually */
+ int npages;
+ struct md_op_data *op_data = rp->rp_mod;
+ struct ptlrpc_request *req;
+ int max_pages = op_data->op_max_pages;
+ struct inode *inode;
+ struct lu_fid *fid;
+ int i;
+ int rc;
+ ENTRY;
+
+ LASSERT(max_pages > 0 && max_pages <= PTLRPC_MAX_BRW_PAGES);
+ if (op_data->op_mea1 != NULL) {
+ __u32 index = op_data->op_stripe_offset;
+
+ inode = op_data->op_mea1->lsm_md_oinfo[index].lmo_root;
+ fid = &op_data->op_mea1->lsm_md_oinfo[index].lmo_fid;
+ } else {
+ inode = op_data->op_data;
+ fid = &op_data->op_fid1;
+ }
+ LASSERT(inode != NULL);
+
+ OBD_ALLOC(page_pool, sizeof(page_pool[0]) * 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 == NULL)
+ break;
+ page_pool[npages] = page;
+ }
+
+ rc = mdc_getpage(rp->rp_exp, fid, rp->rp_off, op_data->op_capa1,
+ page_pool, npages, &req);
+ if (rc == 0) {
+ int lu_pgs;
+
+ rd_pgs = (req->rq_bulk->bd_nob_transferred +
+ PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+ lu_pgs = req->rq_bulk->bd_nob_transferred >>
+ LU_PAGE_SHIFT;
+ LASSERT(!(req->rq_bulk->bd_nob_transferred & ~LU_PAGE_MASK));
+
+ CDEBUG(D_INODE, "read %d(%d)/%d pages\n", rd_pgs, lu_pgs,
+ op_data->op_npages);
+
+ mdc_adjust_dirpages(page_pool, rd_pgs, lu_pgs);
+
+ SetPageUptodate(page0);
+ }
+
+ unlock_page(page0);
+ ptlrpc_req_finished(req);
+ CDEBUG(D_CACHE, "read %d/%d pages\n", rd_pgs, npages);
+ for (i = 1; i < npages; i++) {
+ unsigned long offset;
+ __u64 hash;
+ int ret;
+
+ page = page_pool[i];
+
+ if (rc < 0 || i >= rd_pgs) {
+ page_cache_release(page);
+ continue;
+ }
+
+ SetPageUptodate(page);
+
+ dp = kmap(page);
+ hash = le64_to_cpu(dp->ldp_hash_start);
+ kunmap(page);
+
+ offset = hash_x_index(hash, rp->rp_hash64);
+
+ prefetchw(&page->flags);
+ ret = add_to_page_cache_lru(page, inode->i_mapping, offset,
+ GFP_KERNEL);
+ if (ret == 0)
+ unlock_page(page);
+ else
+ CDEBUG(D_VFSTRACE, "page %lu add to page cache failed:"
+ " rc = %d\n", offset, ret);
+ page_cache_release(page);
+ }
+
+ if (page_pool != &page0)
+ OBD_FREE(page_pool, sizeof(page_pool[0]) * max_pages);
+
+ RETURN(rc);
+}
+
+/**
+ * Read dir page from cache first, if it can not find it, read it from
+ * server and add into the cache.
+ */
+static int mdc_read_page(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_callback *cb_op, struct page **ppage)
+{
+ struct lookup_intent it = { .it_op = IT_READDIR };
+ struct page *page;
+ struct inode *dir = op_data->op_data;
+ struct address_space *mapping;
+ struct lu_dirpage *dp;
+ __u64 start = 0;
+ __u64 end = 0;
+ struct lustre_handle lockh;
+ struct ptlrpc_request *enq_req = NULL;
+ struct readpage_param rp_param;
+ int rc;
+
+ ENTRY;
+
+ *ppage = NULL;
+
+ LASSERT(dir != NULL);
+ mapping = dir->i_mapping;
+
+ rc = mdc_intent_lock(exp, op_data, &it, &enq_req,
+ cb_op->md_blocking_ast, 0);
+ if (enq_req != NULL)
+ ptlrpc_req_finished(enq_req);
+
+ if (rc < 0) {
+ CERROR("%s: "DFID" lock enqueue fails: rc = %d\n",
+ exp->exp_obd->obd_name, PFID(&op_data->op_fid1), rc);
+ RETURN(rc);
+ }
+
+ rc = 0;
+ mdc_set_lock_data(exp, &it.d.lustre.it_lock_handle, dir, NULL);
+
+ rp_param.rp_off = op_data->op_hash_offset;
+ rp_param.rp_hash64 = op_data->op_cli_flags & CLI_HASH64;
+ page = mdc_page_locate(mapping, &rp_param.rp_off, &start, &end,
+ rp_param.rp_hash64);
+ if (IS_ERR(page)) {
+ CERROR("%s: dir page locate: "DFID" at "LPU64": rc %ld\n",
+ exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
+ rp_param.rp_off, PTR_ERR(page));
+ GOTO(out_unlock, rc = PTR_ERR(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);
+ }
+
+ rp_param.rp_exp = exp;
+ rp_param.rp_mod = op_data;
+ page = read_cache_page(mapping,
+ hash_x_index(rp_param.rp_off,
+ rp_param.rp_hash64),
+ mdc_read_page_remote, &rp_param);
+ if (IS_ERR(page)) {
+ CERROR("%s: read cache page: "DFID" at "LPU64": rc %ld\n",
+ exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
+ rp_param.rp_off, PTR_ERR(page));
+ GOTO(out_unlock, rc = PTR_ERR(page));
+ }
+
+ wait_on_page_locked(page);
+ (void)kmap(page);
+ if (!PageUptodate(page)) {
+ CERROR("%s: page not updated: "DFID" at "LPU64": rc %d\n",
+ exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
+ rp_param.rp_off, -5);
+ goto fail;
+ }
+ if (!PageChecked(page))
+ SetPageChecked(page);
+ if (PageError(page)) {
+ CERROR("%s: page error: "DFID" at "LPU64": rc %d\n",
+ exp->exp_obd->obd_name, PFID(&op_data->op_fid1),
+ rp_param.rp_off, -5);
+ goto fail;
+ }
+
+hash_collision:
+ dp = page_address(page);
+ if (BITS_PER_LONG == 32 && rp_param.rp_hash64) {
+ start = le64_to_cpu(dp->ldp_hash_start) >> 32;
+ end = le64_to_cpu(dp->ldp_hash_end) >> 32;
+ rp_param.rp_off = op_data->op_hash_offset >> 32;
+ } else {
+ start = le64_to_cpu(dp->ldp_hash_start);
+ end = le64_to_cpu(dp->ldp_hash_end);
+ rp_param.rp_off = op_data->op_hash_offset;
+ }
+ if (end == start) {
+ LASSERT(start == rp_param.rp_off);
+ CWARN("Page-wide hash collision: %#lx\n", (unsigned long)end);
+#if BITS_PER_LONG == 32
+ 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), op_data->op_hash_offset);
+#endif
+
+ /*
+ * Fetch whole overflow chain...
+ *
+ * XXX not yet.
+ */
+ goto fail;
+ }
+ *ppage = page;
+out_unlock:
+ lockh.cookie = it.d.lustre.it_lock_handle;
+ ldlm_lock_decref(&lockh, it.d.lustre.it_lock_mode);
+ it.d.lustre.it_lock_handle = 0;
+ return rc;
+fail:
+ kunmap(page);
+ mdc_release_page(page, 1);
+ rc = -EIO;
+ goto out_unlock;
+}
+
+/**
+ * Read one directory entry from the cache.
+ */
+int mdc_read_entry(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_callback *cb_op, struct lu_dirent **entp,
+ struct page **ppage)
+{
+ struct page *page = NULL;
+ struct lu_dirpage *dp;
+ struct lu_dirent *ent;
+ int rc = 0;
+ __u32 same_hash_count;
+ __u64 hash_offset = op_data->op_hash_offset;
+ ENTRY;
+
+ CDEBUG(D_INFO, DFID " offset = "LPU64", flags %#x\n",
+ PFID(&op_data->op_fid1), op_data->op_hash_offset,
+ op_data->op_cli_flags);
+
+ *ppage = NULL;
+ *entp = NULL;
+
+ if (op_data->op_hash_offset == MDS_DIR_END_OFF)
+ RETURN(0);
+
+ rc = mdc_read_page(exp, op_data, cb_op, &page);
+ if (rc != 0)
+ RETURN(rc);
+
+ /* same_hash_count means how many entries with this
+ * hash value has been read */
+ same_hash_count = op_data->op_same_hash_offset + 1;
+ dp = page_address(page);
+ for (ent = lu_dirent_start(dp); ent != NULL;
+ ent = lu_dirent_next(ent)) {
+ /* Skip dummy entry */
+ if (le16_to_cpu(ent->lde_namelen) == 0)
+ continue;
+
+ if (le64_to_cpu(ent->lde_hash) <
+ op_data->op_hash_offset)
+ continue;
+
+ if (unlikely(le64_to_cpu(ent->lde_hash) ==
+ op_data->op_hash_offset)) {
+ /* If it is not for next entry, which usually from
+ * ll_dir_entry_start, return this entry. */
+ if (!(op_data->op_cli_flags & CLI_NEXT_ENTRY))
+ break;
+
+ /* Keep reading until all of entries being read are
+ * skipped. */
+ if (same_hash_count > 0) {
+ same_hash_count--;
+ continue;
+ }
+ }
+ break;
+ }
+
+ /* If it can not find entry in current page, try next page. */
+ if (ent == NULL) {
+ if (le64_to_cpu(dp->ldp_hash_end) == MDS_DIR_END_OFF) {
+ op_data->op_same_hash_offset = 0;
+ mdc_release_page(page,
+ le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
+ RETURN(0);
+ }
+
+ op_data->op_hash_offset = le64_to_cpu(dp->ldp_hash_end);
+ mdc_release_page(page,
+ le32_to_cpu(dp->ldp_flags) & LDF_COLLIDE);
+ rc = mdc_read_page(exp, op_data, cb_op, &page);
+ if (rc != 0)
+ RETURN(rc);
+
+ if (page != NULL) {
+ dp = page_address(page);
+ ent = lu_dirent_start(dp);
+ }
+ }
+
+ /* If the next hash is the same as the current hash, increase
+ * the op_same_hash_offset to resolve the same hash conflict */
+ if (ent != NULL && op_data->op_cli_flags & CLI_NEXT_ENTRY) {
+ if (unlikely(le64_to_cpu(ent->lde_hash) == hash_offset))
+ op_data->op_same_hash_offset++;
+ else
+ op_data->op_same_hash_offset = 0;
+ }
+
+ *ppage = page;
+ *entp = ent;
+ RETURN(rc);
}
+#else /* __KERNEL__ */
+
+static struct page
+*mdc_read_page_remote(struct obd_export *exp, const struct lmv_oinfo *lmo,
+ const __u64 hash, struct obd_capa *oc)
+{
+ struct ptlrpc_request *req = NULL;
+ struct page *page;
+ int rc;
+
+ OBD_PAGE_ALLOC(page, 0);
+ if (page == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ rc = mdc_getpage(exp, &lmo->lmo_fid, hash, oc, &page, 1, &req);
+ if (req != NULL)
+ ptlrpc_req_finished(req);
+
+ if (unlikely(rc)) {
+ OBD_PAGE_FREE(page);
+ return ERR_PTR(rc);
+ }
+ return page;
+}
+
+
+static int mdc_read_page(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_callback *cb_op,
+ struct page **ppage)
+{
+ struct page *page;
+ struct lmv_oinfo *lmo;
+ int rc = 0;
+
+ /* No local cache for liblustre, always read entry remotely */
+ lmo = &op_data->op_mea1->lsm_md_oinfo[op_data->op_stripe_offset];
+ page = mdc_read_page_remote(exp, lmo, op_data->op_hash_offset,
+ op_data->op_capa1);
+ if (IS_ERR(page))
+ return PTR_ERR(page);
+
+ *ppage = page;
+
+ return rc;
+}
+
+int mdc_read_entry(struct obd_export *exp, struct md_op_data *op_data,
+ struct md_callback *cb_op, struct lu_dirent **entp,
+ struct page **ppage)
+{
+ struct page *page = NULL;
+ struct lu_dirpage *dp;
+ struct lu_dirent *ent;
+ int rc;
+ ENTRY;
+
+ rc = mdc_read_page(exp, op_data, cb_op, &page);
+ if (rc != 0)
+ RETURN(rc);
+
+ dp = page_address(page);
+ if (le64_to_cpu(dp->ldp_hash_end) < op_data->op_hash_offset)
+ GOTO(out, *entp = NULL);
+
+ for (ent = lu_dirent_start(dp); ent != NULL;
+ ent = lu_dirent_next(ent))
+ if (le64_to_cpu(ent->lde_hash) >= op_data->op_hash_offset)
+ break;
+ *entp = ent;
+out:
+
+ OBD_PAGE_FREE(page);
+ RETURN(rc);
+}
+
+#endif
+
static int mdc_statfs(const struct lu_env *env,
struct obd_export *exp, struct obd_statfs *osfs,
__u64 max_age, __u32 flags)
/* Val is struct getinfo_fid2path result plus path */
vallen = sizeof(*gf) + gf->gf_pathlen;
- rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
- if (rc)
- GOTO(out, rc);
+ rc = obd_get_info(NULL, exp, keylen, key, &vallen, gf, NULL);
+ if (rc != 0 && rc != -EREMOTE)
+ GOTO(out, rc);
if (vallen <= sizeof(*gf))
GOTO(out, rc = -EPROTO);
if (req == NULL)
GOTO(out, rc = -ENOMEM);
+ mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
+
/* Copy hsm_progress struct */
req_hpk = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_PROGRESS);
- LASSERT(req_hpk);
+ if (req_hpk == NULL)
+ GOTO(out, rc = -EPROTO);
+
*req_hpk = *hpk;
+ req_hpk->hpk_errval = lustre_errno_hton(hpk->hpk_errval);
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
+ rc = mdc_queue_wait(req);
GOTO(out, rc);
out:
ptlrpc_req_finished(req);
if (req == NULL)
GOTO(out, rc = -ENOMEM);
+ mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
+
/* Copy hsm_progress struct */
archive_mask = req_capsule_client_get(&req->rq_pill,
&RMF_MDS_HSM_ARCHIVE);
- LASSERT(archive_mask);
+ if (archive_mask == NULL)
+ GOTO(out, rc = -EPROTO);
+
*archive_mask = archives;
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
+ rc = mdc_queue_wait(req);
GOTO(out, rc);
out:
ptlrpc_req_finished(req);
return rc;
}
+static int mdc_ioc_hsm_current_action(struct obd_export *exp,
+ struct md_op_data *op_data)
+{
+ struct hsm_current_action *hca = op_data->op_data;
+ struct hsm_current_action *req_hca;
+ struct ptlrpc_request *req;
+ int rc;
+ ENTRY;
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ &RQF_MDS_HSM_ACTION);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
+
+ rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_ACTION);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ mdc_pack_body(req, &op_data->op_fid1, op_data->op_capa1,
+ OBD_MD_FLRMTPERM, 0, op_data->op_suppgids[0], 0);
+
+ ptlrpc_request_set_replen(req);
+
+ rc = mdc_queue_wait(req);
+ if (rc)
+ GOTO(out, rc);
+
+ req_hca = req_capsule_server_get(&req->rq_pill,
+ &RMF_MDS_HSM_CURRENT_ACTION);
+ if (req_hca == NULL)
+ GOTO(out, rc = -EPROTO);
+
+ *hca = *req_hca;
+
+ EXIT;
+out:
+ ptlrpc_req_finished(req);
+ return rc;
+}
+
static int mdc_ioc_hsm_ct_unregister(struct obd_import *imp)
{
struct ptlrpc_request *req;
if (req == NULL)
GOTO(out, rc = -ENOMEM);
+ mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
+
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
+ rc = mdc_queue_wait(req);
GOTO(out, rc);
out:
ptlrpc_req_finished(req);
struct md_op_data *op_data)
{
struct hsm_user_state *hus = op_data->op_data;
- struct obd_import *imp = class_exp2cliimp(exp);
struct hsm_user_state *req_hus;
struct ptlrpc_request *req;
int rc;
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- /* check connection error first */
- if (imp->imp_connect_error)
- rc = imp->imp_connect_error;
+ rc = mdc_queue_wait(req);
+ if (rc)
GOTO(out, rc);
- }
req_hus = req_capsule_server_get(&req->rq_pill, &RMF_HSM_USER_STATE);
if (req_hus == NULL)
struct md_op_data *op_data)
{
struct hsm_state_set *hss = op_data->op_data;
- struct obd_import *imp = class_exp2cliimp(exp);
struct hsm_state_set *req_hss;
struct ptlrpc_request *req;
int rc;
/* Copy states */
req_hss = req_capsule_client_get(&req->rq_pill, &RMF_HSM_STATE_SET);
- LASSERT(req_hss);
+ if (req_hss == NULL)
+ GOTO(out, rc = -EPROTO);
*req_hss = *hss;
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
- if (rc) {
- /* check connection error first */
- if (imp->imp_connect_error)
- rc = imp->imp_connect_error;
- GOTO(out, rc);
- }
+ rc = mdc_queue_wait(req);
+ GOTO(out, rc);
EXIT;
out:
return rc;
}
+static int mdc_ioc_hsm_request(struct obd_export *exp,
+ struct hsm_user_request *hur)
+{
+ struct obd_import *imp = class_exp2cliimp(exp);
+ struct ptlrpc_request *req;
+ struct hsm_request *req_hr;
+ struct hsm_user_item *req_hui;
+ char *req_opaque;
+ int rc;
+ ENTRY;
+
+ req = ptlrpc_request_alloc(imp, &RQF_MDS_HSM_REQUEST);
+ if (req == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM, RCL_CLIENT,
+ hur->hur_request.hr_itemcount
+ * sizeof(struct hsm_user_item));
+ req_capsule_set_size(&req->rq_pill, &RMF_GENERIC_DATA, RCL_CLIENT,
+ hur->hur_request.hr_data_len);
+
+ rc = ptlrpc_request_pack(req, LUSTRE_MDS_VERSION, MDS_HSM_REQUEST);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ mdc_pack_body(req, NULL, NULL, OBD_MD_FLRMTPERM, 0, -1, 0);
+
+ /* Copy hsm_request struct */
+ req_hr = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_REQUEST);
+ if (req_hr == NULL)
+ GOTO(out, rc = -EPROTO);
+ *req_hr = hur->hur_request;
+
+ /* Copy hsm_user_item structs */
+ req_hui = req_capsule_client_get(&req->rq_pill, &RMF_MDS_HSM_USER_ITEM);
+ if (req_hui == NULL)
+ GOTO(out, rc = -EPROTO);
+ memcpy(req_hui, hur->hur_user_item,
+ hur->hur_request.hr_itemcount * sizeof(struct hsm_user_item));
+
+ /* Copy opaque field */
+ req_opaque = req_capsule_client_get(&req->rq_pill, &RMF_GENERIC_DATA);
+ if (req_opaque == NULL)
+ GOTO(out, rc = -EPROTO);
+ memcpy(req_opaque, hur_data(hur), hur->hur_request.hr_data_len);
+
+ ptlrpc_request_set_replen(req);
+
+ rc = mdc_queue_wait(req);
+ GOTO(out, rc);
+
+out:
+ ptlrpc_req_finished(req);
+ return rc;
+}
static struct kuc_hdr *changelog_kuc_hdr(char *buf, int len, int flags)
{
- struct kuc_hdr *lh = (struct kuc_hdr *)buf;
+ struct kuc_hdr *lh = (struct kuc_hdr *)buf;
- LASSERT(len <= CR_MAXSIZE);
+ LASSERT(len <= KUC_CHANGELOG_MSG_MAXSIZE);
- lh->kuc_magic = KUC_MAGIC;
- lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
- lh->kuc_flags = flags;
- lh->kuc_msgtype = CL_RECORD;
- lh->kuc_msglen = len;
- return lh;
+ lh->kuc_magic = KUC_MAGIC;
+ lh->kuc_transport = KUC_TRANSPORT_CHANGELOG;
+ lh->kuc_flags = flags;
+ lh->kuc_msgtype = CL_RECORD;
+ lh->kuc_msglen = len;
+ return lh;
}
#define D_CHANGELOG 0
struct changelog_show {
- __u64 cs_startrec;
- __u32 cs_flags;
- cfs_file_t *cs_fp;
- char *cs_buf;
- struct obd_device *cs_obd;
+ __u64 cs_startrec;
+ __u32 cs_flags;
+ struct file *cs_fp;
+ char *cs_buf;
+ struct obd_device *cs_obd;
};
-static int changelog_show_cb(const struct lu_env *env, struct llog_handle *llh,
+static int changelog_kkuc_cb(const struct lu_env *env, struct llog_handle *llh,
struct llog_rec_hdr *hdr, void *data)
{
- struct changelog_show *cs = data;
- struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
- struct kuc_hdr *lh;
- int len, rc;
- ENTRY;
+ struct changelog_show *cs = data;
+ struct llog_changelog_rec *rec = (struct llog_changelog_rec *)hdr;
+ struct kuc_hdr *lh;
+ int len, rc;
+ ENTRY;
- if ((rec->cr_hdr.lrh_type != CHANGELOG_REC) ||
- (rec->cr.cr_type >= CL_LAST)) {
- CERROR("Not a changelog rec %d/%d\n", rec->cr_hdr.lrh_type,
- rec->cr.cr_type);
- RETURN(-EINVAL);
- }
+ if (rec->cr_hdr.lrh_type != CHANGELOG_REC) {
+ rc = -EINVAL;
+ CERROR("%s: not a changelog rec %x/%d: rc = %d\n",
+ cs->cs_obd->obd_name, rec->cr_hdr.lrh_type,
+ rec->cr.cr_type, rc);
+ RETURN(rc);
+ }
- if (rec->cr.cr_index < cs->cs_startrec) {
- /* Skip entries earlier than what we are interested in */
- CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64"\n",
- rec->cr.cr_index, cs->cs_startrec);
- RETURN(0);
- }
+ if (rec->cr.cr_index < cs->cs_startrec) {
+ /* Skip entries earlier than what we are interested in */
+ CDEBUG(D_CHANGELOG, "rec="LPU64" start="LPU64"\n",
+ rec->cr.cr_index, cs->cs_startrec);
+ RETURN(0);
+ }
CDEBUG(D_CHANGELOG, LPU64" %02d%-5s "LPU64" 0x%x t="DFID" p="DFID
" %.*s\n", rec->cr.cr_index, rec->cr.cr_type,
static int mdc_changelog_send_thread(void *csdata)
{
- struct changelog_show *cs = csdata;
- struct llog_ctxt *ctxt = NULL;
- struct llog_handle *llh = NULL;
- struct kuc_hdr *kuch;
- int rc;
+ struct changelog_show *cs = csdata;
+ struct llog_ctxt *ctxt = NULL;
+ struct llog_handle *llh = NULL;
+ struct kuc_hdr *kuch;
+ int rc;
- CDEBUG(D_CHANGELOG, "changelog to fp=%p start "LPU64"\n",
- cs->cs_fp, cs->cs_startrec);
+ CDEBUG(D_CHANGELOG, "changelog to fp=%p start "LPU64"\n",
+ cs->cs_fp, cs->cs_startrec);
- /*
- * It's important to daemonize here to close unused FDs.
- * The write fd from pipe is already opened by the caller,
- * so it's fine to clear all files here
- */
- cfs_daemonize("mdc_clg_send_thread");
-
- OBD_ALLOC(cs->cs_buf, CR_MAXSIZE);
- if (cs->cs_buf == NULL)
- GOTO(out, rc = -ENOMEM);
+ OBD_ALLOC(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE);
+ if (cs->cs_buf == NULL)
+ GOTO(out, rc = -ENOMEM);
/* Set up the remote catalog handle */
ctxt = llog_get_context(cs->cs_obd, LLOG_CHANGELOG_REPL_CTXT);
GOTO(out, rc);
}
- rc = llog_cat_process(NULL, llh, changelog_show_cb, cs, 0, 0);
+ rc = llog_cat_process(NULL, llh, changelog_kkuc_cb, cs, 0, 0);
/* Send EOF no matter what our result */
if ((kuch = changelog_kuc_hdr(cs->cs_buf, sizeof(*kuch),
}
out:
- cfs_put_file(cs->cs_fp);
- if (llh)
+ fput(cs->cs_fp);
+ if (llh)
llog_cat_close(NULL, llh);
if (ctxt)
llog_ctxt_put(ctxt);
- if (cs->cs_buf)
- OBD_FREE(cs->cs_buf, CR_MAXSIZE);
- OBD_FREE_PTR(cs);
- /* detach from parent process so we get cleaned up */
- cfs_daemonize("cl_send");
- return rc;
+ if (cs->cs_buf)
+ OBD_FREE(cs->cs_buf, KUC_CHANGELOG_MSG_MAXSIZE);
+ OBD_FREE_PTR(cs);
+ return rc;
}
static int mdc_ioc_changelog_send(struct obd_device *obd,
struct ioc_changelog *icc)
{
- struct changelog_show *cs;
- int rc;
+ struct changelog_show *cs;
+ struct task_struct *task;
+ int rc;
/* Freed in mdc_changelog_send_thread */
OBD_ALLOC_PTR(cs);
if (!cs)
return -ENOMEM;
- cs->cs_obd = obd;
- cs->cs_startrec = icc->icc_recno;
- /* matching cfs_put_file in mdc_changelog_send_thread */
- cs->cs_fp = cfs_get_fd(icc->icc_id);
- cs->cs_flags = icc->icc_flags;
-
- /* New thread because we should return to user app before
- writing into our pipe */
- rc = cfs_create_thread(mdc_changelog_send_thread, cs, CFS_DAEMON_FLAGS);
- if (rc >= 0) {
- CDEBUG(D_CHANGELOG, "start changelog thread: %d\n", rc);
- return 0;
- }
+ cs->cs_obd = obd;
+ cs->cs_startrec = icc->icc_recno;
+ /* matching fput in mdc_changelog_send_thread */
+ cs->cs_fp = fget(icc->icc_id);
+ cs->cs_flags = icc->icc_flags;
+
+ /*
+ * New thread because we should return to user app before
+ * writing into our pipe
+ */
+ task = kthread_run(mdc_changelog_send_thread, cs,
+ "mdc_clg_send_thread");
+ if (IS_ERR(task)) {
+ rc = PTR_ERR(task);
+ CERROR("%s: cannot start changelog thread: rc = %d\n",
+ obd->obd_name, rc);
+ OBD_FREE_PTR(cs);
+ } else {
+ rc = 0;
+ CDEBUG(D_CHANGELOG, "%s: started changelog thread\n",
+ obd->obd_name);
+ }
- CERROR("Failed to start changelog thread: %d\n", rc);
- OBD_FREE_PTR(cs);
- return rc;
+ return rc;
}
static int mdc_ioc_hsm_ct_start(struct obd_export *exp,
RETURN(rc);
}
+static int mdc_ioc_swap_layouts(struct obd_export *exp,
+ struct md_op_data *op_data)
+{
+ struct list_head cancels = LIST_HEAD_INIT(cancels);
+ struct ptlrpc_request *req;
+ int rc, count;
+ struct mdc_swap_layouts *msl, *payload;
+ ENTRY;
+
+ msl = op_data->op_data;
+
+ /* When the MDT will get the MDS_SWAP_LAYOUTS RPC the
+ * first thing it will do is to cancel the 2 layout
+ * locks hold by this client.
+ * So the client must cancel its layout locks on the 2 fids
+ * with the request RPC to avoid extra RPC round trips
+ */
+ count = mdc_resource_get_unused(exp, &op_data->op_fid1, &cancels,
+ LCK_EX, MDS_INODELOCK_LAYOUT |
+ MDS_INODELOCK_XATTR);
+ count += mdc_resource_get_unused(exp, &op_data->op_fid2, &cancels,
+ LCK_EX, MDS_INODELOCK_LAYOUT |
+ MDS_INODELOCK_XATTR);
+
+ req = ptlrpc_request_alloc(class_exp2cliimp(exp),
+ &RQF_MDS_SWAP_LAYOUTS);
+ if (req == NULL) {
+ ldlm_lock_list_put(&cancels, l_bl_ast, count);
+ RETURN(-ENOMEM);
+ }
+
+ mdc_set_capa_size(req, &RMF_CAPA1, op_data->op_capa1);
+ mdc_set_capa_size(req, &RMF_CAPA2, op_data->op_capa2);
+
+ rc = mdc_prep_elc_req(exp, req, MDS_SWAP_LAYOUTS, &cancels, count);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ mdc_swap_layouts_pack(req, op_data);
+
+ payload = req_capsule_client_get(&req->rq_pill, &RMF_SWAP_LAYOUTS);
+ LASSERT(payload);
+
+ *payload = *msl;
+
+ ptlrpc_request_set_replen(req);
+
+ rc = ptlrpc_queue_wait(req);
+ if (rc)
+ GOTO(out, rc);
+ EXIT;
+
+out:
+ ptlrpc_req_finished(req);
+ return rc;
+}
+
static int mdc_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
void *karg, void *uarg)
{
struct obd_device *obd = exp->exp_obd;
struct obd_ioctl_data *data = karg;
struct obd_import *imp = obd->u.cli.cl_import;
- struct llog_ctxt *ctxt;
int rc;
ENTRY;
- if (!cfs_try_module_get(THIS_MODULE)) {
- CERROR("Can't get module. Is it alive?");
- return -EINVAL;
- }
+ if (!try_module_get(THIS_MODULE)) {
+ CERROR("Can't get module. Is it alive?");
+ return -EINVAL;
+ }
switch (cmd) {
case OBD_IOC_CHANGELOG_SEND:
rc = mdc_ioc_changelog_send(obd, karg);
GOTO(out, rc);
case LL_IOC_HSM_CT_START:
rc = mdc_ioc_hsm_ct_start(exp, karg);
+ /* ignore if it was already registered on this MDS. */
+ if (rc == -EEXIST)
+ rc = 0;
GOTO(out, rc);
case LL_IOC_HSM_PROGRESS:
rc = mdc_ioc_hsm_progress(exp, karg);
case LL_IOC_HSM_STATE_SET:
rc = mdc_ioc_hsm_state_set(exp, karg);
GOTO(out, rc);
+ case LL_IOC_HSM_ACTION:
+ rc = mdc_ioc_hsm_current_action(exp, karg);
+ GOTO(out, rc);
+ case LL_IOC_HSM_REQUEST:
+ rc = mdc_ioc_hsm_request(exp, karg);
+ GOTO(out, rc);
case OBD_IOC_CLIENT_RECOVER:
rc = ptlrpc_recover_import(imp, data->ioc_inlbuf1, 0);
if (rc < 0)
case IOC_OSC_SET_ACTIVE:
rc = ptlrpc_set_import_active(imp, data->ioc_offset);
GOTO(out, rc);
- case OBD_IOC_PARSE: {
- ctxt = llog_get_context(exp->exp_obd, LLOG_CONFIG_REPL_CTXT);
- rc = class_config_parse_llog(NULL, ctxt, data->ioc_inlbuf1,
- NULL);
- llog_ctxt_put(ctxt);
- GOTO(out, rc);
- }
-#ifdef __KERNEL__
- case OBD_IOC_LLOG_INFO:
- case OBD_IOC_LLOG_PRINT: {
- ctxt = llog_get_context(obd, LLOG_CONFIG_REPL_CTXT);
- rc = llog_ioctl(NULL, ctxt, cmd, data);
- llog_ctxt_put(ctxt);
- GOTO(out, rc);
- }
-#endif
case OBD_IOC_POLL_QUOTACHECK:
rc = mdc_quota_poll_check(exp, (struct if_quotacheck *)karg);
GOTO(out, rc);
GOTO(out, rc = -ENODEV);
/* copy UUID */
- if (cfs_copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
- min((int) data->ioc_plen2,
- (int) sizeof(struct obd_uuid))))
- GOTO(out, rc = -EFAULT);
-
- rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
- cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
- 0);
- if (rc != 0)
- GOTO(out, rc);
-
- if (cfs_copy_to_user(data->ioc_pbuf1, &stat_buf,
+ if (copy_to_user(data->ioc_pbuf2, obd2cli_tgt(obd),
+ min((int)data->ioc_plen2,
+ (int)sizeof(struct obd_uuid))))
+ GOTO(out, rc = -EFAULT);
+
+ rc = mdc_statfs(NULL, obd->obd_self_export, &stat_buf,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ 0);
+ if (rc != 0)
+ GOTO(out, rc);
+
+ if (copy_to_user(data->ioc_pbuf1, &stat_buf,
min((int) data->ioc_plen1,
(int) sizeof(stat_buf))))
GOTO(out, rc = -EFAULT);
GOTO(out, rc = 0);
}
- case OBD_IOC_QUOTACTL: {
- struct if_quotactl *qctl = karg;
- struct obd_quotactl *oqctl;
-
- OBD_ALLOC_PTR(oqctl);
- if (!oqctl)
- RETURN(-ENOMEM);
-
- QCTL_COPY(oqctl, qctl);
- rc = obd_quotactl(exp, oqctl);
- if (rc == 0) {
- QCTL_COPY(qctl, oqctl);
- qctl->qc_valid = QC_MDTIDX;
- qctl->obd_uuid = obd->u.cli.cl_target_uuid;
- }
- OBD_FREE_PTR(oqctl);
- break;
- }
- case LL_IOC_GET_CONNECT_FLAGS: {
- if (cfs_copy_to_user(uarg, &exp->exp_connect_flags,
- sizeof(__u64)))
- GOTO(out, rc = -EFAULT);
- else
- GOTO(out, rc = 0);
- }
- default:
- CERROR("mdc_ioctl(): unrecognised ioctl %#x\n", cmd);
- GOTO(out, rc = -ENOTTY);
- }
+ case OBD_IOC_QUOTACTL: {
+ struct if_quotactl *qctl = karg;
+ struct obd_quotactl *oqctl;
+
+ OBD_ALLOC_PTR(oqctl);
+ if (oqctl == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ QCTL_COPY(oqctl, qctl);
+ rc = obd_quotactl(exp, oqctl);
+ if (rc == 0) {
+ QCTL_COPY(qctl, oqctl);
+ qctl->qc_valid = QC_MDTIDX;
+ qctl->obd_uuid = obd->u.cli.cl_target_uuid;
+ }
+
+ OBD_FREE_PTR(oqctl);
+ GOTO(out, rc);
+ }
+ case LL_IOC_GET_CONNECT_FLAGS:
+ if (copy_to_user(uarg, exp_connect_flags_ptr(exp),
+ sizeof(*exp_connect_flags_ptr(exp))))
+ GOTO(out, rc = -EFAULT);
+
+ GOTO(out, rc = 0);
+ case LL_IOC_LOV_SWAP_LAYOUTS:
+ rc = mdc_ioc_swap_layouts(exp, karg);
+ GOTO(out, rc);
+ default:
+ CERROR("unrecognised ioctl: cmd = %#x\n", cmd);
+ GOTO(out, rc = -ENOTTY);
+ }
out:
- cfs_module_put(THIS_MODULE);
+ module_put(THIS_MODULE);
- return rc;
+ return rc;
}
int mdc_get_info_rpc(struct obd_export *exp,
RCL_SERVER, vallen);
ptlrpc_request_set_replen(req);
- rc = ptlrpc_queue_wait(req);
- if (rc == 0) {
- tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
- memcpy(val, tmp, vallen);
- if (ptlrpc_rep_need_swab(req)) {
- if (KEY_IS(KEY_FID2PATH)) {
- lustre_swab_fid2path(val);
- }
- }
- }
- ptlrpc_req_finished(req);
+ rc = ptlrpc_queue_wait(req);
+ /* -EREMOTE means the get_info result is partial, and it needs to
+ * continue on another MDT, see fid2path part in lmv_iocontrol */
+ if (rc == 0 || rc == -EREMOTE) {
+ tmp = req_capsule_server_get(&req->rq_pill, &RMF_GETINFO_VAL);
+ memcpy(val, tmp, vallen);
+ if (ptlrpc_rep_need_swab(req)) {
+ if (KEY_IS(KEY_FID2PATH))
+ lustre_swab_fid2path(val);
+ }
+ }
+ ptlrpc_req_finished(req);
- RETURN(rc);
+ RETURN(rc);
}
static void lustre_swab_hai(struct hsm_action_item *h)
__swab32s(&h->hal_version);
__swab32s(&h->hal_count);
- __swab32s(&h->hal_archive_num);
+ __swab32s(&h->hal_archive_id);
__swab64s(&h->hal_flags);
- hai = hai_zero(h);
- for (i = 0; i < h->hal_count; i++) {
+ hai = hai_first(h);
+ for (i = 0; i < h->hal_count; i++, hai = hai_next(hai))
lustre_swab_hai(hai);
- hai = hai_next(hai);
- }
}
static void lustre_swab_kuch(struct kuc_hdr *l)
lk->lk_uid, lk->lk_group, lk->lk_flags);
if (lk->lk_flags & LK_FLG_STOP) {
- rc = libcfs_kkuc_group_rem(lk->lk_uid, lk->lk_group);
/* Unregister with the coordinator */
- if (rc == 0)
- rc = mdc_ioc_hsm_ct_unregister(imp);
+ rc = mdc_ioc_hsm_ct_unregister(imp);
} else {
- cfs_file_t *fp = cfs_get_fd(lk->lk_wfd);
- rc = libcfs_kkuc_group_add(fp, lk->lk_uid, lk->lk_group,
- lk->lk_data);
- if (rc && fp)
- cfs_put_file(fp);
- if (rc == 0)
- rc = mdc_ioc_hsm_ct_register(imp, archive);
+ rc = mdc_ioc_hsm_ct_register(imp, archive);
}
return rc;
/**
* callback function passed to kuc for re-registering each HSM copytool
* running on MDC, after MDT shutdown/recovery.
- * @param data archive id served by the copytool
+ * @param data copytool registration data
* @param cb_arg callback argument (obd_import)
*/
-static int mdc_hsm_ct_reregister(__u32 data, void *cb_arg)
+static int mdc_hsm_ct_reregister(void *data, void *cb_arg)
{
+ struct kkuc_ct_data *kcd = data;
struct obd_import *imp = (struct obd_import *)cb_arg;
- __u32 archive = data;
int rc;
- CDEBUG(D_HA, "recover copytool registration to MDT (archive=%#x)\n",
- archive);
- rc = mdc_ioc_hsm_ct_register(imp, archive);
+ if (kcd == NULL || kcd->kcd_magic != KKUC_CT_DATA_MAGIC)
+ return -EPROTO;
+
+ if (!obd_uuid_equals(&kcd->kcd_uuid, &imp->imp_obd->obd_uuid))
+ return 0;
+
+ CDEBUG(D_HA, "%s: recover copytool registration to MDT (archive=%#x)\n",
+ imp->imp_obd->obd_name, kcd->kcd_archive);
+ rc = mdc_ioc_hsm_ct_register(imp, kcd->kcd_archive);
/* ignore error if the copytool is already registered */
- return ((rc != 0) && (rc != -EEXIST)) ? rc : 0;
+ return (rc == -EEXIST) ? 0 : rc;
}
/**
sptlrpc_import_flush_my_ctx(imp);
RETURN(0);
}
- if (KEY_IS(KEY_MDS_CONN)) {
- /* mds-mds import */
- spin_lock(&imp->imp_lock);
- imp->imp_server_timeout = 1;
- spin_unlock(&imp->imp_lock);
- imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
- CDEBUG(D_OTHER, "%s: timeout / 2\n", exp->exp_obd->obd_name);
- RETURN(0);
- }
if (KEY_IS(KEY_CHANGELOG_CLEAR)) {
rc = do_set_info_async(imp, MDS_SET_INFO, LUSTRE_MDS_VERSION,
keylen, key, vallen, val, set);
}
int mdc_get_info(const struct lu_env *env, struct obd_export *exp,
- __u32 keylen, void *key, __u32 *vallen, void *val,
- struct lov_stripe_md *lsm)
+ __u32 keylen, void *key, __u32 *vallen, void *val,
+ struct lov_stripe_md *lsm)
{
- int rc = -EINVAL;
+ int rc = -EINVAL;
- if (KEY_IS(KEY_MAX_EASIZE)) {
- int mdsize, *max_easize;
+ if (KEY_IS(KEY_MAX_EASIZE)) {
+ int mdsize, *max_easize;
- if (*vallen != sizeof(int))
- RETURN(-EINVAL);
- mdsize = *(int*)val;
- if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
- exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
- max_easize = val;
- *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
- RETURN(0);
+ if (*vallen != sizeof(int))
+ RETURN(-EINVAL);
+ mdsize = *(int *)val;
+ if (mdsize > exp->exp_obd->u.cli.cl_max_mds_easize)
+ exp->exp_obd->u.cli.cl_max_mds_easize = mdsize;
+ max_easize = val;
+ *max_easize = exp->exp_obd->u.cli.cl_max_mds_easize;
+ RETURN(0);
+ } else if (KEY_IS(KEY_DEFAULT_EASIZE)) {
+ int *default_easize;
+
+ if (*vallen != sizeof(int))
+ RETURN(-EINVAL);
+ default_easize = val;
+ *default_easize = exp->exp_obd->u.cli.cl_default_mds_easize;
+ RETURN(0);
+ } else if (KEY_IS(KEY_MAX_COOKIESIZE)) {
+ int mdsize, *max_cookiesize;
+
+ if (*vallen != sizeof(int))
+ RETURN(-EINVAL);
+ mdsize = *(int *)val;
+ if (mdsize > exp->exp_obd->u.cli.cl_max_mds_cookiesize)
+ exp->exp_obd->u.cli.cl_max_mds_cookiesize = mdsize;
+ max_cookiesize = val;
+ *max_cookiesize = exp->exp_obd->u.cli.cl_max_mds_cookiesize;
+ RETURN(0);
+ } else if (KEY_IS(KEY_DEFAULT_COOKIESIZE)) {
+ int *default_cookiesize;
+
+ if (*vallen != sizeof(int))
+ RETURN(-EINVAL);
+ default_cookiesize = val;
+ *default_cookiesize =
+ exp->exp_obd->u.cli.cl_default_mds_cookiesize;
+ RETURN(0);
} else if (KEY_IS(KEY_CONN_DATA)) {
struct obd_import *imp = class_exp2cliimp(exp);
struct obd_connect_data *data = val;
RETURN(rc);
}
-int mdc_sync(struct obd_export *exp, const struct lu_fid *fid,
- struct obd_capa *oc, struct ptlrpc_request **request)
+int mdc_fsync(struct obd_export *exp, const struct lu_fid *fid,
+ struct obd_capa *oc, struct ptlrpc_request **request)
{
struct ptlrpc_request *req;
int rc;
}
case IMP_EVENT_ACTIVE:
rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE, NULL);
- /* restore re-establish kuc registration after reconnecting */
+ /* redo the kuc registration after reconnecting */
if (rc == 0)
rc = mdc_kuc_reregister(imp);
break;
RETURN(rc);
}
-int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
- struct md_op_data *op_data)
+int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
+ struct lu_fid *fid, struct md_op_data *op_data)
{
- struct client_obd *cli = &exp->exp_obd->u.cli;
- struct lu_client_seq *seq = cli->cl_seq;
- ENTRY;
- RETURN(seq_client_alloc_fid(NULL, seq, fid));
+ struct client_obd *cli = &exp->exp_obd->u.cli;
+ struct lu_client_seq *seq = cli->cl_seq;
+ ENTRY;
+ RETURN(seq_client_alloc_fid(env, seq, fid));
}
struct obd_uuid *mdc_get_uuid(struct obd_export *exp) {
* recovery, non zero value will be return if the lock can be canceled,
* or zero returned for not
*/
-static int mdc_cancel_for_recovery(struct ldlm_lock *lock)
+static int mdc_cancel_weight(struct ldlm_lock *lock)
{
- if (lock->l_resource->lr_type != LDLM_IBITS)
- RETURN(0);
+ if (lock->l_resource->lr_type != LDLM_IBITS)
+ RETURN(0);
- /* FIXME: if we ever get into a situation where there are too many
- * opened files with open locks on a single node, then we really
- * should replay these open locks to reget it */
- if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
- RETURN(0);
+ /* FIXME: if we ever get into a situation where there are too many
+ * opened files with open locks on a single node, then we really
+ * should replay these open locks to reget it */
+ if (lock->l_policy_data.l_inodebits.bits & MDS_INODELOCK_OPEN)
+ RETURN(0);
- RETURN(1);
+ RETURN(1);
}
+static int mdc_resource_inode_free(struct ldlm_resource *res)
+{
+ if (res->lr_lvb_inode)
+ res->lr_lvb_inode = NULL;
+
+ return 0;
+}
+
+struct ldlm_valblock_ops inode_lvbo = {
+ .lvbo_free = mdc_resource_inode_free
+};
+
static int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg)
{
- struct client_obd *cli = &obd->u.cli;
- struct lprocfs_static_vars lvars = { 0 };
- int rc;
- ENTRY;
+ struct client_obd *cli = &obd->u.cli;
+ int rc;
+ ENTRY;
OBD_ALLOC(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
if (!cli->cl_rpc_lock)
RETURN(-ENOMEM);
mdc_init_rpc_lock(cli->cl_rpc_lock);
- ptlrpcd_addref();
+ rc = ptlrpcd_addref();
+ if (rc < 0)
+ GOTO(err_rpc_lock, rc);
OBD_ALLOC(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
if (!cli->cl_close_lock)
- GOTO(err_rpc_lock, rc = -ENOMEM);
+ GOTO(err_ptlrpcd_decref, rc = -ENOMEM);
mdc_init_rpc_lock(cli->cl_close_lock);
rc = client_obd_setup(obd, cfg);
if (rc)
GOTO(err_close_lock, rc);
- lprocfs_mdc_init_vars(&lvars);
- lprocfs_obd_setup(obd, lvars.obd_vars);
- sptlrpc_lprocfs_cliobd_attach(obd);
- ptlrpc_lprocfs_register_obd(obd);
+#ifdef LPROCFS
+ obd->obd_vars = lprocfs_mdc_obd_vars;
+ lprocfs_seq_obd_setup(obd);
+ lprocfs_alloc_md_stats(obd, 0);
+#endif
+ sptlrpc_lprocfs_cliobd_attach(obd);
+ ptlrpc_lprocfs_register_obd(obd);
- ns_register_cancel(obd->obd_namespace, mdc_cancel_for_recovery);
+ ns_register_cancel(obd->obd_namespace, mdc_cancel_weight);
+
+ obd->obd_namespace->ns_lvbo = &inode_lvbo;
rc = obd_llog_init(obd, &obd->obd_olg, obd, NULL);
if (rc) {
err_close_lock:
OBD_FREE(cli->cl_close_lock, sizeof (*cli->cl_close_lock));
+err_ptlrpcd_decref:
+ ptlrpcd_decref();
err_rpc_lock:
OBD_FREE(cli->cl_rpc_lock, sizeof (*cli->cl_rpc_lock));
- ptlrpcd_decref();
RETURN(rc);
}
/* Initialize the default and maximum LOV EA and cookie sizes. This allows
- * us to make MDS RPCs with large enough reply buffers to hold the
- * maximum-sized (= maximum striped) EA and cookie without having to
- * calculate this (via a call into the LOV + OSCs) each time we make an RPC. */
+ * us to make MDS RPCs with large enough reply buffers to hold a default
+ * sized EA and cookie without having to calculate this (via a call into the
+ * LOV + OSCs) each time we make an RPC. The maximum size is also tracked
+ * but not used to avoid wastefully vmalloc()'ing large reply buffers when
+ * a large number of stripes is possible. If a larger reply buffer is
+ * required it will be reallocated in the ptlrpc layer due to overflow.
+ */
static int mdc_init_ea_size(struct obd_export *exp, int easize,
- int def_easize, int cookiesize)
+ int def_easize, int cookiesize, int def_cookiesize)
{
- struct obd_device *obd = exp->exp_obd;
- struct client_obd *cli = &obd->u.cli;
- ENTRY;
+ struct obd_device *obd = exp->exp_obd;
+ struct client_obd *cli = &obd->u.cli;
+ ENTRY;
- if (cli->cl_max_mds_easize < easize)
- cli->cl_max_mds_easize = easize;
+ if (cli->cl_max_mds_easize < easize)
+ cli->cl_max_mds_easize = easize;
- if (cli->cl_default_mds_easize < def_easize)
- cli->cl_default_mds_easize = def_easize;
+ if (cli->cl_default_mds_easize < def_easize)
+ cli->cl_default_mds_easize = def_easize;
- if (cli->cl_max_mds_cookiesize < cookiesize)
- cli->cl_max_mds_cookiesize = cookiesize;
+ if (cli->cl_max_mds_cookiesize < cookiesize)
+ cli->cl_max_mds_cookiesize = cookiesize;
- RETURN(0);
+ if (cli->cl_default_mds_cookiesize < def_cookiesize)
+ cli->cl_default_mds_cookiesize = def_cookiesize;
+
+ RETURN(0);
}
static int mdc_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage)
case OBD_CLEANUP_EARLY:
break;
case OBD_CLEANUP_EXPORTS:
- /* Failsafe, ok if racy */
- if (obd->obd_type->typ_refcnt <= 1)
- libcfs_kkuc_group_rem(0, KUC_GRP_HSM);
+ /* Failsafe, ok if racy */
+ if (obd->obd_type->typ_refcnt <= 1)
+ libcfs_kkuc_group_rem(0, KUC_GRP_HSM, NULL);
obd_cleanup_client_import(obd);
ptlrpc_lprocfs_unregister_obd(obd);
lprocfs_obd_cleanup(obd);
+ lprocfs_free_md_stats(obd);
rc = obd_llog_finish(obd, 0);
if (rc != 0)
static int mdc_process_config(struct obd_device *obd, obd_count len, void *buf)
{
struct lustre_cfg *lcfg = buf;
- struct lprocfs_static_vars lvars = { 0 };
- int rc = 0;
-
- lprocfs_mdc_init_vars(&lvars);
- switch (lcfg->lcfg_command) {
- default:
- rc = class_process_proc_param(PARAM_MDC, lvars.obd_vars,
- lcfg, obd);
- if (rc > 0)
- rc = 0;
- break;
- }
- return(rc);
+ int rc = class_process_proc_seq_param(PARAM_MDC, obd->obd_vars,
+ lcfg, obd);
+ return (rc > 0 ? 0: rc);
}
RETURN(0);
}
-static int mdc_connect(const struct lu_env *env,
- struct obd_export **exp,
- struct obd_device *obd, struct obd_uuid *cluuid,
- struct obd_connect_data *data,
- void *localdata)
-{
- struct obd_import *imp = obd->u.cli.cl_import;
-
- /* mds-mds import features */
- if (data && (data->ocd_connect_flags & OBD_CONNECT_MDS_MDS)) {
- spin_lock(&imp->imp_lock);
- imp->imp_server_timeout = 1;
- spin_unlock(&imp->imp_lock);
- imp->imp_client->cli_request_portal = MDS_MDS_PORTAL;
- CDEBUG(D_OTHER, "%s: Set 'mds' portal and timeout\n",
- obd->obd_name);
- }
-
- return client_connect_import(env, exp, obd, cluuid, data, NULL);
-}
-
struct obd_ops mdc_obd_ops = {
.o_owner = THIS_MODULE,
.o_setup = mdc_setup,
.o_cleanup = mdc_cleanup,
.o_add_conn = client_import_add_conn,
.o_del_conn = client_import_del_conn,
- .o_connect = mdc_connect,
+ .o_connect = client_connect_import,
.o_disconnect = client_disconnect_export,
.o_iocontrol = mdc_iocontrol,
.o_set_info_async = mdc_set_info_async,
struct md_ops mdc_md_ops = {
.m_getstatus = mdc_getstatus,
- .m_change_cbdata = mdc_change_cbdata,
+ .m_null_inode = mdc_null_inode,
.m_find_cbdata = mdc_find_cbdata,
.m_close = mdc_close,
.m_create = mdc_create,
.m_setattr = mdc_setattr,
.m_setxattr = mdc_setxattr,
.m_getxattr = mdc_getxattr,
- .m_sync = mdc_sync,
- .m_readpage = mdc_readpage,
+ .m_fsync = mdc_fsync,
+ .m_read_entry = mdc_read_entry,
.m_unlink = mdc_unlink,
.m_cancel_unused = mdc_cancel_unused,
.m_init_ea_size = mdc_init_ea_size,
int __init mdc_init(void)
{
- int rc;
- struct lprocfs_static_vars lvars = { 0 };
- lprocfs_mdc_init_vars(&lvars);
-
- rc = class_register_type(&mdc_obd_ops, &mdc_md_ops, lvars.module_vars,
- LUSTRE_MDC_NAME, NULL);
- RETURN(rc);
+ return class_register_type(&mdc_obd_ops, &mdc_md_ops, true, NULL,
+#ifndef HAVE_ONLY_PROCFS_SEQ
+ NULL,
+#endif
+ LUSTRE_MDC_NAME, NULL);
}
#ifdef __KERNEL__