/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
+ * Copyright (C) 2001-2003 Cluster File Systems, Inc.
* Author: Peter J. Braam <braam@clusterfs.com>
* Author: Phil Schwan <phil@clusterfs.com>
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*
* Storage Target Handling functions
* Lustre Object Server Module (OST)
* modules do not have a full method table.)
*/
-#define EXPORT_SYMTAB
+#ifndef EXPORT_SYMTAB
+# define EXPORT_SYMTAB
+#endif
#define DEBUG_SUBSYSTEM S_OST
#include <linux/module.h>
-#include <linux/obd_ost.h>
-#include <linux/lustre_net.h>
-#include <linux/lustre_dlm.h>
+#include <obd_ost.h>
+#include <lustre_net.h>
+#include <lustre_dlm.h>
+#include <lustre_export.h>
+#include <lustre_debug.h>
#include <linux/init.h>
+#include <lprocfs_status.h>
+#include <lustre_commit_confd.h>
+#include <libcfs/list.h>
+#include <lustre_quota.h>
+#include "ost_internal.h"
-static int ost_destroy(struct ptlrpc_request *req)
+static int oss_num_threads;
+CFS_MODULE_PARM(oss_num_threads, "i", int, 0444,
+ "number of OSS service threads to start");
+
+static int ost_num_threads;
+CFS_MODULE_PARM(ost_num_threads, "i", int, 0444,
+ "number of OST service threads to start (deprecated)");
+
+void oti_to_request(struct obd_trans_info *oti, struct ptlrpc_request *req)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
- struct ost_body *body;
- int rc, size = sizeof(*body);
- ENTRY;
+ struct oti_req_ack_lock *ack_lock;
+ int i;
+
+ if (oti == NULL)
+ return;
+
+ if (req->rq_repmsg)
+ lustre_msg_set_transno(req->rq_repmsg, oti->oti_transno);
+ req->rq_transno = oti->oti_transno;
+
+ /* XXX 4 == entries in oti_ack_locks??? */
+ for (ack_lock = oti->oti_ack_locks, i = 0; i < 4; i++, ack_lock++) {
+ if (!ack_lock->mode)
+ break;
+ /* XXX not even calling target_send_reply in some cases... */
+ ptlrpc_save_lock (req, &ack_lock->lock, ack_lock->mode);
+ }
+}
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+static int ost_destroy(struct obd_export *exp, struct ptlrpc_request *req,
+ struct obd_trans_info *oti)
+{
+ struct ost_body *body, *repbody;
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*body) };
+ ENTRY;
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
+
+ if (lustre_msg_buflen(req->rq_reqmsg, REQ_REC_OFF + 1)) {
+ struct ldlm_request *dlm;
+ dlm = lustre_swab_reqbuf(req, REQ_REC_OFF + 1, sizeof(*dlm),
+ lustre_swab_ldlm_request);
+ if (dlm == NULL)
+ RETURN (-EFAULT);
+ ldlm_request_cancel(req, dlm, 0);
+ }
+
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- req->rq_status = obd_destroy(conn, &body->oa, NULL);
+ if (body->oa.o_valid & OBD_MD_FLCOOKIE)
+ oti->oti_logcookies = obdo_logcookie(&body->oa);
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
+ req->rq_status = obd_destroy(exp, &body->oa, NULL, oti, NULL);
RETURN(0);
}
-static int ost_getattr(struct ptlrpc_request *req)
+static int ost_getattr(struct obd_export *exp, struct ptlrpc_request *req)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ struct obd_info oinfo = { { { 0 } } };
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*body) };
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
- memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_getattr(conn, &repbody->oa, NULL);
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ repbody->oa = body->oa;
+
+ oinfo.oi_oa = &repbody->oa;
+ if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA)
+ oinfo.oi_capa = lustre_unpack_capa(req->rq_reqmsg,
+ REQ_REC_OFF + 1);
+ req->rq_status = obd_getattr(exp, &oinfo);
RETURN(0);
}
static int ost_statfs(struct ptlrpc_request *req)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct obd_statfs *osfs;
- int rc, size = sizeof(*osfs);
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*osfs) };
ENTRY;
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- osfs = lustre_msg_buf(req->rq_repmsg, 0);
- memset(osfs, 0, size);
+ osfs = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*osfs));
- rc = obd_statfs(conn, osfs);
- if (rc) {
- CERROR("ost: statfs failed: rc %d\n", rc);
- req->rq_status = rc;
- RETURN(rc);
- }
- obd_statfs_pack(osfs, osfs);
+ req->rq_status = obd_statfs(req->rq_export->exp_obd, osfs,
+ cfs_time_current_64() - HZ);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_ENOSPC))
+ osfs->os_bfree = osfs->os_bavail = 64;
+ if (req->rq_status != 0)
+ CERROR("ost: statfs failed: rc %d\n", req->rq_status);
RETURN(0);
}
-static int ost_open(struct ptlrpc_request *req)
+static int ost_create(struct obd_export *exp, struct ptlrpc_request *req,
+ struct obd_trans_info *oti)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*repbody) };
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_open(conn, &repbody->oa, NULL);
+ oti->oti_logcookies = obdo_logcookie(&repbody->oa);
+ req->rq_status = obd_create(exp, &repbody->oa, NULL, oti);
+ //obd_log_cancel(conn, NULL, 1, oti->oti_logcookies, 0);
RETURN(0);
}
-static int ost_close(struct ptlrpc_request *req)
+/*
+ * Helper function for ost_punch(): if asked by client, acquire [size, EOF]
+ * lock on the file being truncated.
+ */
+static int ost_punch_lock_get(struct obd_export *exp, struct obdo *oa,
+ struct lustre_handle *lh)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
- struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ int flags;
+ struct ldlm_res_id res_id = { .name = { oa->o_id, 0, oa->o_gr, 0} };
+ ldlm_policy_data_t policy;
+ __u64 start;
+ __u64 finis;
+
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ LASSERT(!lustre_handle_is_used(lh));
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
- if (rc)
- RETURN(rc);
+ if (!(oa->o_valid & OBD_MD_FLFLAGS) ||
+ !(oa->o_flags & OBD_FL_TRUNCLOCK))
+ RETURN(0);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
- memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_close(conn, &repbody->oa, NULL);
- RETURN(0);
+ CDEBUG(D_INODE, "OST-side truncate lock.\n");
+
+ start = oa->o_size;
+ finis = start + oa->o_blocks;
+
+ /*
+ * standard truncate optimization: if file body is completely
+ * destroyed, don't send data back to the server.
+ */
+ flags = (start == 0) ? LDLM_AST_DISCARD_DATA : 0;
+
+ policy.l_extent.start = start & CFS_PAGE_MASK;
+
+ /*
+ * If ->o_blocks is EOF it means "lock till the end of the
+ * file". Otherwise, it's size of a hole being punched (in bytes)
+ */
+ if (oa->o_blocks == OBD_OBJECT_EOF || finis < start)
+ policy.l_extent.end = OBD_OBJECT_EOF;
+ else
+ policy.l_extent.end = finis | ~CFS_PAGE_MASK;
+
+ RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
+ LDLM_EXTENT, &policy, LCK_PW, &flags,
+ ldlm_blocking_ast, ldlm_completion_ast,
+ ldlm_glimpse_ast, NULL, 0, NULL, lh));
+}
+
+/*
+ * Helper function for ost_punch(): release lock acquired by
+ * ost_punch_lock_get(), if any.
+ */
+static void ost_punch_lock_put(struct obd_export *exp, struct obdo *oa,
+ struct lustre_handle *lh)
+{
+ ENTRY;
+ if (lustre_handle_is_used(lh))
+ ldlm_lock_decref(lh, LCK_PW);
+ EXIT;
}
-static int ost_create(struct ptlrpc_request *req)
+static int ost_punch(struct obd_export *exp, struct ptlrpc_request *req,
+ struct obd_trans_info *oti)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
+ struct obd_info oinfo = { { { 0 } } };
struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*repbody) };
+ struct lustre_handle lh = {0,};
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ /* check that we do support OBD_CONNECT_TRUNCLOCK. */
+ CLASSERT(OST_CONNECT_SUPPORTED & OBD_CONNECT_TRUNCLOCK);
+
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
+
+ oinfo.oi_oa = &body->oa;
+ oinfo.oi_policy.l_extent.start = oinfo.oi_oa->o_size;
+ oinfo.oi_policy.l_extent.end = oinfo.oi_oa->o_blocks;
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if ((oinfo.oi_oa->o_valid & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS)) !=
+ (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
+ RETURN(-EINVAL);
+
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
- memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_create(conn, &repbody->oa, NULL);
- RETURN(0);
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ rc = ost_punch_lock_get(exp, oinfo.oi_oa, &lh);
+ if (rc == 0) {
+ if (oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS &&
+ oinfo.oi_oa->o_flags == OBD_FL_TRUNCLOCK)
+ /*
+ * If OBD_FL_TRUNCLOCK is the only bit set in
+ * ->o_flags, clear OBD_MD_FLFLAGS to avoid falling
+ * through filter_setattr() to filter_iocontrol().
+ */
+ oinfo.oi_oa->o_valid &= ~OBD_MD_FLFLAGS;
+
+ if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA)
+ oinfo.oi_capa = lustre_unpack_capa(req->rq_reqmsg,
+ REQ_REC_OFF + 1);
+ req->rq_status = obd_punch(exp, &oinfo, oti, NULL);
+ ost_punch_lock_put(exp, oinfo.oi_oa, &lh);
+ }
+ repbody->oa = *oinfo.oi_oa;
+ RETURN(rc);
}
-static int ost_punch(struct ptlrpc_request *req)
+static int ost_sync(struct obd_export *exp, struct ptlrpc_request *req)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ struct lustre_capa *capa = NULL;
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*repbody) };
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
- if ((NTOH__u32(body->oa.o_valid) & (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))!=
- (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS))
- RETURN(-EINVAL);
+ if (body->oa.o_valid & OBD_MD_FLOSSCAPA)
+ capa = lustre_unpack_capa(req->rq_reqmsg, REQ_REC_OFF + 1);
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_punch(conn, &repbody->oa, NULL,
- repbody->oa.o_size, repbody->oa.o_blocks);
+ req->rq_status = obd_sync(exp, &repbody->oa, NULL, repbody->oa.o_size,
+ repbody->oa.o_blocks, capa);
RETURN(0);
}
-static int ost_setattr(struct ptlrpc_request *req)
+static int ost_setattr(struct obd_export *exp, struct ptlrpc_request *req,
+ struct obd_trans_info *oti)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ost_body *body, *repbody;
- int rc, size = sizeof(*body);
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*repbody) };
+ struct obd_info oinfo = { { { 0 } } };
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL)
+ RETURN(-EFAULT);
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ rc = lustre_pack_reply(req, 2, size, NULL);
if (rc)
RETURN(rc);
- repbody = lustre_msg_buf(req->rq_repmsg, 0);
- /* FIXME: unpack only valid fields instead of memcpy, endianness */
- memcpy(&repbody->oa, &body->oa, sizeof(body->oa));
- req->rq_status = obd_setattr(conn, &repbody->oa, NULL);
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ repbody->oa = body->oa;
+
+ oinfo.oi_oa = &repbody->oa;
+ if (oinfo.oi_oa->o_valid & OBD_MD_FLOSSCAPA)
+ oinfo.oi_capa = lustre_unpack_capa(req->rq_reqmsg,
+ REQ_REC_OFF + 1);
+ req->rq_status = obd_setattr(exp, &oinfo, oti);
RETURN(0);
}
static int ost_bulk_timeout(void *data)
{
- struct ptlrpc_bulk_desc *desc = data;
-
ENTRY;
- CERROR("(not yet) starting recovery of client %p\n", desc->bd_client);
+ /* We don't fail the connection here, because having the export
+ * killed makes the (vital) call to commitrw very sad.
+ */
RETURN(1);
}
-static int ost_brw_read(struct ptlrpc_request *req)
+static int get_per_page_niobufs(struct obd_ioobj *ioo, int nioo,
+ struct niobuf_remote *rnb, int nrnb,
+ struct niobuf_remote **pp_rnbp)
+{
+ /* Copy a remote niobuf, splitting it into page-sized chunks
+ * and setting ioo[i].ioo_bufcnt accordingly */
+ struct niobuf_remote *pp_rnb;
+ int i;
+ int j;
+ int page;
+ int rnbidx = 0;
+ int npages = 0;
+
+ /*
+ * array of sufficient size already preallocated by caller
+ */
+ LASSERT(pp_rnbp != NULL);
+ LASSERT(*pp_rnbp != NULL);
+
+ /* first count and check the number of pages required */
+ for (i = 0; i < nioo; i++)
+ for (j = 0; j < ioo->ioo_bufcnt; j++, rnbidx++) {
+ obd_off offset = rnb[rnbidx].offset;
+ obd_off p0 = offset >> CFS_PAGE_SHIFT;
+ obd_off pn = (offset + rnb[rnbidx].len - 1) >>
+ CFS_PAGE_SHIFT;
+
+ LASSERT(rnbidx < nrnb);
+
+ npages += (pn + 1 - p0);
+
+ if (rnb[rnbidx].len == 0) {
+ CERROR("zero len BRW: obj %d objid "LPX64
+ " buf %u\n", i, ioo[i].ioo_id, j);
+ return -EINVAL;
+ }
+ if (j > 0 &&
+ rnb[rnbidx].offset <= rnb[rnbidx-1].offset) {
+ CERROR("unordered BRW: obj %d objid "LPX64
+ " buf %u offset "LPX64" <= "LPX64"\n",
+ i, ioo[i].ioo_id, j, rnb[rnbidx].offset,
+ rnb[rnbidx].offset);
+ return -EINVAL;
+ }
+ }
+
+ LASSERT(rnbidx == nrnb);
+
+ if (npages == nrnb) { /* all niobufs are for single pages */
+ *pp_rnbp = rnb;
+ return npages;
+ }
+
+ pp_rnb = *pp_rnbp;
+
+ /* now do the actual split */
+ page = rnbidx = 0;
+ for (i = 0; i < nioo; i++) {
+ int obj_pages = 0;
+
+ for (j = 0; j < ioo[i].ioo_bufcnt; j++, rnbidx++) {
+ obd_off off = rnb[rnbidx].offset;
+ int nob = rnb[rnbidx].len;
+
+ LASSERT(rnbidx < nrnb);
+ do {
+ obd_off poff = off & ~CFS_PAGE_MASK;
+ int pnob = (poff + nob > CFS_PAGE_SIZE) ?
+ PAGE_SIZE - poff : nob;
+
+ LASSERT(page < npages);
+ pp_rnb[page].len = pnob;
+ pp_rnb[page].offset = off;
+ pp_rnb[page].flags = rnb[rnbidx].flags;
+
+ CDEBUG(0, " obj %d id "LPX64
+ "page %d(%d) "LPX64" for %d, flg %x\n",
+ i, ioo[i].ioo_id, obj_pages, page,
+ pp_rnb[page].offset, pp_rnb[page].len,
+ pp_rnb[page].flags);
+ page++;
+ obj_pages++;
+
+ off += pnob;
+ nob -= pnob;
+ } while (nob > 0);
+ LASSERT(nob == 0);
+ }
+ ioo[i].ioo_bufcnt = obj_pages;
+ }
+ LASSERT(page == npages);
+
+ return npages;
+}
+
+static __u32 ost_checksum_bulk(struct ptlrpc_bulk_desc *desc)
+{
+ __u32 cksum = ~0;
+ int i;
+
+ for (i = 0; i < desc->bd_iov_count; i++) {
+ struct page *page = desc->bd_iov[i].kiov_page;
+ int off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK;
+ char *ptr = kmap(page) + off;
+ int len = desc->bd_iov[i].kiov_len;
+
+ /* corrupt the data before we compute the checksum, to
+ * simulate a client->OST data error */
+ if (i == 0 &&
+ OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_CHECKSUM_RECEIVE))
+ memcpy(ptr, "bad3", min(4, len));
+ cksum = crc32_le(cksum, ptr, len);
+ /* corrupt the data after we compute the checksum, to
+ * simulate an OST->client data error */
+ if (i == 0 && OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_CHECKSUM_SEND))
+ memcpy(ptr, "bad4", min(4, len));
+ kunmap(page);
+ }
+
+ return cksum;
+}
+
+/*
+ * populate @nio by @nrpages pages from per-thread page pool
+ */
+static void ost_nio_pages_get(struct ptlrpc_request *req,
+ struct niobuf_local *nio, int nrpages)
+{
+ int i;
+ struct ost_thread_local_cache *tls;
+
+ ENTRY;
+
+ LASSERT(nrpages <= OST_THREAD_POOL_SIZE);
+ LASSERT(req != NULL);
+ LASSERT(req->rq_svc_thread != NULL);
+
+ tls = ost_tls(req);
+ LASSERT(tls != NULL);
+
+ memset(nio, 0, nrpages * sizeof *nio);
+ for (i = 0; i < nrpages; ++ i) {
+ struct page *page;
+
+ page = tls->page[i];
+ LASSERT(page != NULL);
+ POISON_PAGE(page, 0xf1);
+ nio[i].page = page;
+ LL_CDEBUG_PAGE(D_INFO, page, "%d\n", i);
+ }
+ EXIT;
+}
+
+/*
+ * Dual for ost_nio_pages_get(). Poison pages in pool for debugging
+ */
+static void ost_nio_pages_put(struct ptlrpc_request *req,
+ struct niobuf_local *nio, int nrpages)
+{
+ int i;
+
+ ENTRY;
+
+ LASSERT(nrpages <= OST_THREAD_POOL_SIZE);
+
+ for (i = 0; i < nrpages; ++ i)
+ POISON_PAGE(nio[i].page, 0xf2);
+ EXIT;
+}
+
+static int ost_brw_lock_get(int mode, struct obd_export *exp,
+ struct obd_ioobj *obj, struct niobuf_remote *nb,
+ struct lustre_handle *lh)
+{
+ int flags = 0;
+ int nrbufs = obj->ioo_bufcnt;
+ struct ldlm_res_id res_id = { .name = { obj->ioo_id, 0,
+ obj->ioo_gr, 0} };
+ ldlm_policy_data_t policy;
+ int i;
+
+ ENTRY;
+
+ LASSERT(mode == LCK_PR || mode == LCK_PW);
+ LASSERT(!lustre_handle_is_used(lh));
+
+ if (nrbufs == 0 || !(nb[0].flags & OBD_BRW_SRVLOCK))
+ RETURN(0);
+
+ /* EXPENSIVE ASSERTION */
+ for (i = 1; i < nrbufs; i ++)
+ LASSERT((nb[0].flags & OBD_BRW_SRVLOCK) ==
+ (nb[i].flags & OBD_BRW_SRVLOCK));
+
+ policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK;
+ policy.l_extent.end = (nb[nrbufs - 1].offset +
+ nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK;
+
+ RETURN(ldlm_cli_enqueue_local(exp->exp_obd->obd_namespace, &res_id,
+ LDLM_EXTENT, &policy, mode, &flags,
+ ldlm_blocking_ast, ldlm_completion_ast,
+ ldlm_glimpse_ast, NULL, 0, NULL, lh));
+}
+
+static void ost_brw_lock_put(int mode,
+ struct obd_ioobj *obj, struct niobuf_remote *niob,
+ struct lustre_handle *lh)
+{
+ ENTRY;
+ LASSERT(mode == LCK_PR || mode == LCK_PW);
+ LASSERT((obj->ioo_bufcnt > 0 && (niob[0].flags & OBD_BRW_SRVLOCK)) ==
+ lustre_handle_is_used(lh));
+ if (lustre_handle_is_used(lh))
+ ldlm_lock_decref(lh, mode);
+ EXIT;
+}
+
+struct ost_prolong_data {
+ struct obd_export *opd_exp;
+ ldlm_policy_data_t opd_policy;
+ ldlm_mode_t opd_mode;
+};
+
+static int ost_prolong_locks_iter(struct ldlm_lock *lock, void *data)
+{
+ struct ost_prolong_data *opd = data;
+
+ LASSERT(lock->l_resource->lr_type == LDLM_EXTENT);
+
+ if (lock->l_req_mode != lock->l_granted_mode) {
+ /* scan granted locks only */
+ return LDLM_ITER_STOP;
+ }
+
+ if (lock->l_export != opd->opd_exp) {
+ /* prolong locks only for given client */
+ return LDLM_ITER_CONTINUE;
+ }
+
+ if (!(lock->l_granted_mode & opd->opd_mode)) {
+ /* we aren't interesting in all type of locks */
+ return LDLM_ITER_CONTINUE;
+ }
+
+ if (lock->l_policy_data.l_extent.end < opd->opd_policy.l_extent.start ||
+ lock->l_policy_data.l_extent.start > opd->opd_policy.l_extent.end) {
+ /* the request doesn't cross the lock, skip it */
+ return LDLM_ITER_CONTINUE;
+ }
+
+ if (!(lock->l_flags & LDLM_FL_AST_SENT)) {
+ /* ignore locks not being cancelled */
+ return LDLM_ITER_CONTINUE;
+ }
+
+ /* OK. this is a possible lock the user holds doing I/O
+ * let's refresh eviction timer for it */
+ ldlm_refresh_waiting_lock(lock);
+
+ return LDLM_ITER_CONTINUE;
+}
+
+static void ost_prolong_locks(struct obd_export *exp, struct obd_ioobj *obj,
+ struct niobuf_remote *nb, ldlm_mode_t mode)
+{
+ struct ldlm_res_id res_id = { .name = { obj->ioo_id, 0,
+ obj->ioo_gr, 0} };
+ int nrbufs = obj->ioo_bufcnt;
+ struct ost_prolong_data opd;
+
+ ENTRY;
+
+ opd.opd_mode = mode;
+ opd.opd_exp = exp;
+ opd.opd_policy.l_extent.start = nb[0].offset & CFS_PAGE_MASK;
+ opd.opd_policy.l_extent.end = (nb[nrbufs - 1].offset +
+ nb[nrbufs - 1].len - 1) | ~CFS_PAGE_MASK;
+
+ CDEBUG(D_DLMTRACE,"refresh locks: "LPU64"/"LPU64" ("LPU64"->"LPU64")\n",
+ res_id.name[0], res_id.name[1], opd.opd_policy.l_extent.start,
+ opd.opd_policy.l_extent.end);
+ ldlm_resource_iterate(exp->exp_obd->obd_namespace, &res_id,
+ ost_prolong_locks_iter, &opd);
+}
+
+static int ost_brw_read(struct ptlrpc_request *req, struct obd_trans_info *oti)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ptlrpc_bulk_desc *desc;
- void *tmp1, *tmp2, *end2;
struct niobuf_remote *remote_nb;
- struct niobuf_local *local_nb = NULL;
+ struct niobuf_remote *pp_rnb = NULL;
+ struct niobuf_local *local_nb;
struct obd_ioobj *ioo;
- struct ost_body *body;
+ struct ost_body *body, *repbody;
+ struct lustre_capa *capa = NULL;
struct l_wait_info lwi;
- void *desc_priv = NULL;
- int rc, cmd, i, j, objcount, niocount, size = sizeof(*body);
+ struct lustre_handle lockh = { 0 };
+ int size[2] = { sizeof(struct ptlrpc_body), sizeof(*body) };
+ int comms_error = 0, niocount, npages, nob = 0, rc, i;
+ int no_reply = 0;
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
- tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
- tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
- end2 = (char *)tmp2 + req->rq_reqmsg->buflens[2];
- objcount = req->rq_reqmsg->buflens[1] / sizeof(*ioo);
- niocount = req->rq_reqmsg->buflens[2] / sizeof(*remote_nb);
- cmd = OBD_BRW_READ;
+ req->rq_bulk_read = 1;
if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_READ_BULK))
- GOTO(out, rc = 0);
+ GOTO(out, rc = -EIO);
- for (i = 0; i < objcount; i++) {
- ost_unpack_ioo(&tmp1, &ioo);
- if (tmp2 + ioo->ioo_bufcnt > end2) {
- LBUG();
- GOTO(out, rc = -EFAULT);
- }
- for (j = 0; j < ioo->ioo_bufcnt; j++)
- ost_unpack_niobuf(&tmp2, &remote_nb);
+ OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK | OBD_FAIL_ONCE,
+ (obd_timeout + 1) / 4);
+
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL) {
+ CERROR("Missing/short ost_body\n");
+ GOTO(out, rc = -EFAULT);
}
- OBD_ALLOC(local_nb, sizeof(*local_nb) * niocount);
- if (local_nb == NULL)
- GOTO(out, rc = -ENOMEM);
+ ioo = lustre_swab_reqbuf(req, REQ_REC_OFF + 1, sizeof(*ioo),
+ lustre_swab_obd_ioobj);
+ if (ioo == NULL) {
+ CERROR("Missing/short ioobj\n");
+ GOTO(out, rc = -EFAULT);
+ }
- /* The unpackers move tmp1 and tmp2, so reset them before using */
- ioo = lustre_msg_buf(req->rq_reqmsg, 1);
- remote_nb = lustre_msg_buf(req->rq_reqmsg, 2);
- req->rq_status = obd_preprw(cmd, conn, objcount, ioo, niocount,
- remote_nb, local_nb, &desc_priv);
+ niocount = ioo->ioo_bufcnt;
+ if (niocount > PTLRPC_MAX_BRW_PAGES) {
+ DEBUG_REQ(D_ERROR, req, "bulk has too many pages (%d)",
+ niocount);
+ GOTO(out, rc = -EFAULT);
+ }
- if (req->rq_status)
- GOTO(out, rc = 0);
+ remote_nb = lustre_swab_reqbuf(req, REQ_REC_OFF + 2,
+ niocount * sizeof(*remote_nb),
+ lustre_swab_niobuf_remote);
+ if (remote_nb == NULL) {
+ CERROR("Missing/short niobuf\n");
+ GOTO(out, rc = -EFAULT);
+ }
+ if (lustre_msg_swabbed(req->rq_reqmsg)) { /* swab remaining niobufs */
+ for (i = 1; i < niocount; i++)
+ lustre_swab_niobuf_remote (&remote_nb[i]);
+ }
+
+ if (body->oa.o_valid & OBD_MD_FLOSSCAPA)
+ capa = lustre_unpack_capa(req->rq_reqmsg, REQ_REC_OFF + 3);
+
+ rc = lustre_pack_reply(req, 2, size, NULL);
+ if (rc)
+ GOTO(out, rc);
+
+ /*
+ * Per-thread array of struct niobuf_{local,remote}'s was allocated by
+ * ost_thread_init().
+ */
+ local_nb = ost_tls(req)->local;
+ pp_rnb = ost_tls(req)->remote;
+
+ /* FIXME all niobuf splitting should be done in obdfilter if needed */
+ /* CAVEAT EMPTOR this sets ioo->ioo_bufcnt to # pages */
+ npages = get_per_page_niobufs(ioo, 1, remote_nb, niocount, &pp_rnb);
+ if (npages < 0)
+ GOTO(out, rc = npages);
- desc = ptlrpc_prep_bulk(req->rq_connection);
+ LASSERT(npages <= OST_THREAD_POOL_SIZE);
+
+ ost_nio_pages_get(req, local_nb, npages);
+
+ desc = ptlrpc_prep_bulk_exp(req, npages,
+ BULK_PUT_SOURCE, OST_BULK_PORTAL);
if (desc == NULL)
- GOTO(out_local, rc = -ENOMEM);
- desc->bd_portal = OST_BULK_PORTAL;
+ GOTO(out, rc = -ENOMEM);
- for (i = 0; i < niocount; i++) {
- struct ptlrpc_bulk_page *bulk = ptlrpc_prep_bulk_page(desc);
+ rc = ost_brw_lock_get(LCK_PR, req->rq_export, ioo, pp_rnb, &lockh);
+ if (rc != 0)
+ GOTO(out_bulk, rc);
- if (bulk == NULL)
- GOTO(out_bulk, rc = -ENOMEM);
- bulk->bp_xid = remote_nb[i].xid;
- bulk->bp_buf = local_nb[i].addr;
- bulk->bp_buflen = remote_nb[i].len;
+ /*
+ * If getting the lock took more time than
+ * client was willing to wait, drop it. b=11330
+ */
+ if (cfs_time_current_sec() > req->rq_arrival_time.tv_sec + obd_timeout ||
+ OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
+ no_reply = 1;
+ CERROR("Dropping timed-out read from %s because locking"
+ "object "LPX64" took %ld seconds.\n",
+ libcfs_id2str(req->rq_peer), ioo->ioo_id,
+ cfs_time_current_sec() - req->rq_arrival_time.tv_sec);
+ goto out_lock;
}
- rc = ptlrpc_send_bulk(desc);
- if (rc)
- GOTO(out_bulk, rc);
+ rc = obd_preprw(OBD_BRW_READ, req->rq_export, &body->oa, 1,
+ ioo, npages, pp_rnb, local_nb, oti, capa);
+ if (rc != 0)
+ GOTO(out_lock, rc);
- lwi = LWI_TIMEOUT(obd_timeout * HZ, ost_bulk_timeout, desc);
- rc = l_wait_event(desc->bd_waitq, desc->bd_flags &PTL_BULK_FL_SENT, &lwi);
- if (rc) {
- LASSERT(rc == -ETIMEDOUT);
- GOTO(out_bulk, rc);
+ ost_prolong_locks(req->rq_export, ioo, pp_rnb, LCK_PW | LCK_PR);
+
+ nob = 0;
+ for (i = 0; i < npages; i++) {
+ int page_rc = local_nb[i].rc;
+
+ if (page_rc < 0) { /* error */
+ rc = page_rc;
+ break;
+ }
+
+ LASSERTF(page_rc <= pp_rnb[i].len, "page_rc (%d) > "
+ "pp_rnb[%d].len (%d)\n", page_rc, i, pp_rnb[i].len);
+ nob += page_rc;
+ if (page_rc != 0) { /* some data! */
+ LASSERT (local_nb[i].page != NULL);
+ ptlrpc_prep_bulk_page(desc, local_nb[i].page,
+ pp_rnb[i].offset & ~CFS_PAGE_MASK,
+ page_rc);
+ }
+
+ if (page_rc != pp_rnb[i].len) { /* short read */
+ /* All subsequent pages should be 0 */
+ while(++i < npages)
+ LASSERT(local_nb[i].rc == 0);
+ break;
+ }
+ }
+
+ if (unlikely(body->oa.o_valid & OBD_MD_FLCKSUM)) {
+ body->oa.o_cksum = ost_checksum_bulk(desc);
+ body->oa.o_valid = OBD_MD_FLCKSUM;
+ CDEBUG(D_PAGE,"checksum at read origin: %x\n",body->oa.o_cksum);
+ } else {
+ body->oa.o_valid = 0;
}
+ /* We're finishing using body->oa as an input variable */
+
+ /* Check if client was evicted while we were doing i/o before touching
+ network */
+ if (rc == 0) {
+ if (desc->bd_export->exp_failed)
+ rc = -ENOTCONN;
+ else {
+ sptlrpc_svc_wrap_bulk(req, desc);
+
+ rc = ptlrpc_start_bulk_transfer(desc);
+ }
+
+ if (rc == 0) {
+ lwi = LWI_TIMEOUT_INTERVAL(obd_timeout * HZ / 4, HZ,
+ ost_bulk_timeout, desc);
+ rc = l_wait_event(desc->bd_waitq,
+ !ptlrpc_bulk_active(desc) ||
+ desc->bd_export->exp_failed, &lwi);
+ LASSERT(rc == 0 || rc == -ETIMEDOUT);
+ if (rc == -ETIMEDOUT) {
+ DEBUG_REQ(D_ERROR, req, "timeout on bulk PUT");
+ ptlrpc_abort_bulk(desc);
+ } else if (desc->bd_export->exp_failed) {
+ DEBUG_REQ(D_ERROR, req, "Eviction on bulk PUT");
+ rc = -ENOTCONN;
+ ptlrpc_abort_bulk(desc);
+ } else if (!desc->bd_success ||
+ desc->bd_nob_transferred != desc->bd_nob) {
+ DEBUG_REQ(D_ERROR, req, "%s bulk PUT %d(%d)",
+ desc->bd_success ?
+ "truncated" : "network error on",
+ desc->bd_nob_transferred,
+ desc->bd_nob);
+ /* XXX should this be a different errno? */
+ rc = -ETIMEDOUT;
+ }
+ } else {
+ DEBUG_REQ(D_ERROR, req, "bulk PUT failed: rc %d", rc);
+ }
+ comms_error = rc != 0;
+ }
+
+ /* Must commit after prep above in all cases */
+ rc = obd_commitrw(OBD_BRW_READ, req->rq_export, &body->oa, 1,
+ ioo, npages, local_nb, oti, rc);
- req->rq_status = obd_commitrw(cmd, conn, objcount, ioo, niocount,
- local_nb, desc_priv);
+ ost_nio_pages_put(req, local_nb, npages);
- rc = lustre_pack_msg(1, &size, NULL, &req->rq_replen, &req->rq_repmsg);
+ if (rc == 0) {
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
+ }
+out_lock:
+ ost_brw_lock_put(LCK_PR, ioo, pp_rnb, &lockh);
out_bulk:
ptlrpc_free_bulk(desc);
-out_local:
- OBD_FREE(local_nb, sizeof(*local_nb) * niocount);
+ if (no_reply)
+ RETURN(rc);
out:
- if (rc) {
- /* It's a lot of work to delay allocating the reply, and a lot
- * less work to just free it here. */
- OBD_FREE(req->rq_repmsg, req->rq_replen);
- req->rq_repmsg = NULL;
- ptlrpc_error(req->rq_svc, req);
- } else
- ptlrpc_reply(req->rq_svc, req);
+ LASSERT(rc <= 0);
+ if (rc == 0) {
+ req->rq_status = nob;
+ target_committed_to_req(req);
+ ptlrpc_reply(req);
+ } else if (!comms_error) {
+ /* Only reply if there was no comms problem with bulk */
+ target_committed_to_req(req);
+ req->rq_status = rc;
+ ptlrpc_error(req);
+ } else {
+ if (req->rq_reply_state != NULL) {
+ /* reply out callback would free */
+ ptlrpc_rs_decref(req->rq_reply_state);
+ req->rq_reply_state = NULL;
+ }
+ CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
+ "client will retry\n",
+ req->rq_export->exp_obd->obd_name,
+ req->rq_export->exp_client_uuid.uuid,
+ req->rq_export->exp_connection->c_remote_uuid.uuid,
+ libcfs_id2str(req->rq_peer));
+ }
+
RETURN(rc);
}
-static int ost_brw_write(struct ptlrpc_request *req)
+static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti)
{
- struct lustre_handle *conn = (struct lustre_handle *)req->rq_reqmsg;
struct ptlrpc_bulk_desc *desc;
- struct niobuf_remote *remote_nb;
- struct niobuf_local *local_nb, *lnb;
- struct obd_ioobj *ioo;
- struct ost_body *body;
- int cmd, rc, i, j, objcount, niocount, size[2] = {sizeof(*body)};
- void *tmp1, *tmp2, *end2;
- void *desc_priv = NULL;
- int reply_sent = 0;
- struct ptlrpc_service *srv;
- struct l_wait_info lwi;
- __u32 xid;
+ struct niobuf_remote *remote_nb;
+ struct niobuf_remote *pp_rnb;
+ struct niobuf_local *local_nb;
+ struct obd_ioobj *ioo;
+ struct ost_body *body, *repbody;
+ struct l_wait_info lwi;
+ struct lustre_handle lockh = {0};
+ struct lustre_capa *capa = NULL;
+ __u32 *rcs;
+ int size[3] = { sizeof(struct ptlrpc_body), sizeof(*body) };
+ int objcount, niocount, npages, comms_error = 0;
+ int rc, swab, i, j;
+ obd_count client_cksum, server_cksum = 0;
+ int no_reply = 0;
ENTRY;
- body = lustre_msg_buf(req->rq_reqmsg, 0);
- tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
- tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
- end2 = (char *)tmp2 + req->rq_reqmsg->buflens[2];
- objcount = req->rq_reqmsg->buflens[1] / sizeof(*ioo);
- niocount = req->rq_reqmsg->buflens[2] / sizeof(*remote_nb);
- cmd = OBD_BRW_WRITE;
-
- for (i = 0; i < objcount; i++) {
- ost_unpack_ioo((void *)&tmp1, &ioo);
- if (tmp2 + ioo->ioo_bufcnt > end2) {
- rc = -EFAULT;
- break;
+ req->rq_bulk_write = 1;
+
+ if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
+ GOTO(out, rc = -EIO);
+
+ /* pause before transaction has been started */
+ OBD_FAIL_TIMEOUT(OBD_FAIL_OST_BRW_PAUSE_BULK | OBD_FAIL_ONCE,
+ (obd_timeout + 1) / 4);
+
+ swab = lustre_msg_swabbed(req->rq_reqmsg);
+ body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
+ lustre_swab_ost_body);
+ if (body == NULL) {
+ CERROR("Missing/short ost_body\n");
+ GOTO(out, rc = -EFAULT);
+ }
+
+ LASSERT_REQSWAB(req, REQ_REC_OFF + 1);
+ objcount = lustre_msg_buflen(req->rq_reqmsg, REQ_REC_OFF + 1) /
+ sizeof(*ioo);
+ if (objcount == 0) {
+ CERROR("Missing/short ioobj\n");
+ GOTO(out, rc = -EFAULT);
+ }
+ if (objcount > 1) {
+ CERROR("too many ioobjs (%d)\n", objcount);
+ GOTO(out, rc = -EFAULT);
+ }
+
+ ioo = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF + 1,
+ objcount * sizeof(*ioo));
+ LASSERT (ioo != NULL);
+ for (niocount = i = 0; i < objcount; i++) {
+ if (swab)
+ lustre_swab_obd_ioobj(&ioo[i]);
+ if (ioo[i].ioo_bufcnt == 0) {
+ CERROR("ioo[%d] has zero bufcnt\n", i);
+ GOTO(out, rc = -EFAULT);
}
- for (j = 0; j < ioo->ioo_bufcnt; j++)
- ost_unpack_niobuf((void *)&tmp2, &remote_nb);
+ niocount += ioo[i].ioo_bufcnt;
}
- size[1] = niocount * sizeof(*remote_nb);
- rc = lustre_pack_msg(2, size, NULL, &req->rq_replen, &req->rq_repmsg);
- if (rc)
+ if (niocount > PTLRPC_MAX_BRW_PAGES) {
+ DEBUG_REQ(D_ERROR, req, "bulk has too many pages (%d)",
+ niocount);
+ GOTO(out, rc = -EFAULT);
+ }
+
+ remote_nb = lustre_swab_reqbuf(req, REQ_REC_OFF + 2,
+ niocount * sizeof(*remote_nb),
+ lustre_swab_niobuf_remote);
+ if (remote_nb == NULL) {
+ CERROR("Missing/short niobuf\n");
+ GOTO(out, rc = -EFAULT);
+ }
+ if (swab) { /* swab the remaining niobufs */
+ for (i = 1; i < niocount; i++)
+ lustre_swab_niobuf_remote (&remote_nb[i]);
+ }
+
+ if (body->oa.o_valid & OBD_MD_FLOSSCAPA)
+ capa = lustre_unpack_capa(req->rq_reqmsg, REQ_REC_OFF + 3);
+
+ size[REPLY_REC_OFF + 1] = niocount * sizeof(*rcs);
+ rc = lustre_pack_reply(req, 3, size, NULL);
+ if (rc != 0)
GOTO(out, rc);
- remote_nb = lustre_msg_buf(req->rq_repmsg, 1);
+ rcs = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF + 1,
+ niocount * sizeof(*rcs));
- OBD_ALLOC(local_nb, niocount * sizeof(*local_nb));
- if (local_nb == NULL)
- GOTO(out, rc = -ENOMEM);
+ /*
+ * Per-thread array of struct niobuf_{local,remote}'s was allocated by
+ * ost_thread_init().
+ */
+ local_nb = ost_tls(req)->local;
+ pp_rnb = ost_tls(req)->remote;
- /* The unpackers move tmp1 and tmp2, so reset them before using */
- tmp1 = lustre_msg_buf(req->rq_reqmsg, 1);
- tmp2 = lustre_msg_buf(req->rq_reqmsg, 2);
- req->rq_status = obd_preprw(cmd, conn, objcount, tmp1, niocount, tmp2,
- local_nb, &desc_priv);
- if (req->rq_status)
- GOTO(out_free, rc = 0); /* XXX is this correct? */
+ /* FIXME all niobuf splitting should be done in obdfilter if needed */
+ /* CAVEAT EMPTOR this sets ioo->ioo_bufcnt to # pages */
+ npages = get_per_page_niobufs(ioo, objcount,remote_nb,niocount,&pp_rnb);
+ if (npages < 0)
+ GOTO(out, rc = npages);
- if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_WRITE_BULK))
- GOTO(fail_preprw, rc = 0);
+ LASSERT(npages <= OST_THREAD_POOL_SIZE);
- desc = ptlrpc_prep_bulk(req->rq_connection);
+ ost_nio_pages_get(req, local_nb, npages);
+
+ desc = ptlrpc_prep_bulk_exp(req, npages,
+ BULK_GET_SINK, OST_BULK_PORTAL);
if (desc == NULL)
- GOTO(fail_preprw, rc = -ENOMEM);
- desc->bd_cb = NULL;
- desc->bd_portal = OSC_BULK_PORTAL;
- desc->bd_desc_private = desc_priv;
- memcpy(&(desc->bd_conn), &conn, sizeof(conn));
+ GOTO(out, rc = -ENOMEM);
- srv = req->rq_obd->u.ost.ost_service;
- spin_lock(&srv->srv_lock);
- xid = srv->srv_xid++; /* single xid for all pages */
- spin_unlock(&srv->srv_lock);
+ rc = ost_brw_lock_get(LCK_PW, req->rq_export, ioo, pp_rnb, &lockh);
+ if (rc != 0)
+ GOTO(out_bulk, rc);
- for (i = 0, lnb = local_nb; i < niocount; i++, lnb++) {
- struct ptlrpc_bulk_page *bulk;
+ /*
+ * If getting the lock took more time than
+ * client was willing to wait, drop it. b=11330
+ */
+ if (cfs_time_current_sec() > req->rq_arrival_time.tv_sec + obd_timeout ||
+ OBD_FAIL_CHECK(OBD_FAIL_OST_DROP_REQ)) {
+ no_reply = 1;
+ CERROR("Dropping timed-out write from %s because locking"
+ "object "LPX64" took %ld seconds.\n",
+ libcfs_id2str(req->rq_peer), ioo->ioo_id,
+ cfs_time_current_sec() - req->rq_arrival_time.tv_sec);
+ goto out_lock;
+ }
- bulk = ptlrpc_prep_bulk_page(desc);
- if (bulk == NULL)
- GOTO(fail_bulk, rc = -ENOMEM);
+ ost_prolong_locks(req->rq_export, ioo, pp_rnb, LCK_PW);
+
+ /* obd_preprw clobbers oa->valid, so save what we need */
+ client_cksum = body->oa.o_valid & OBD_MD_FLCKSUM ? body->oa.o_cksum : 0;
+
+ /* Because we already sync grant info with client when reconnect,
+ * grant info will be cleared for resent req, then fed_grant and
+ * total_grant will not be modified in following preprw_write */
+ if (lustre_msg_get_flags(req->rq_reqmsg) & (MSG_RESENT | MSG_REPLAY)) {
+ DEBUG_REQ(D_CACHE, req, "clear resent/replay req grant info\n");
+ body->oa.o_valid &= ~OBD_MD_FLGRANT;
+ }
- bulk->bp_xid = xid; /* single xid for all pages */
+ rc = obd_preprw(OBD_BRW_WRITE, req->rq_export, &body->oa, objcount,
+ ioo, npages, pp_rnb, local_nb, oti, capa);
+ if (rc != 0)
+ GOTO(out_lock, rc);
+
+ /* NB Having prepped, we must commit... */
+
+ for (i = 0; i < npages; i++)
+ ptlrpc_prep_bulk_page(desc, local_nb[i].page,
+ pp_rnb[i].offset & ~CFS_PAGE_MASK,
+ pp_rnb[i].len);
+
+ /* Check if client was evicted while we were doing i/o before touching
+ network */
+ if (desc->bd_export->exp_failed)
+ rc = -ENOTCONN;
+ else
+ rc = ptlrpc_start_bulk_transfer (desc);
+ if (rc == 0) {
+ lwi = LWI_TIMEOUT_INTERVAL(obd_timeout * HZ / 2, HZ,
+ ost_bulk_timeout, desc);
+ rc = l_wait_event(desc->bd_waitq, !ptlrpc_bulk_active(desc) ||
+ desc->bd_export->exp_failed, &lwi);
+ LASSERT(rc == 0 || rc == -ETIMEDOUT);
+ if (rc == -ETIMEDOUT) {
+ DEBUG_REQ(D_ERROR, req, "timeout on bulk GET");
+ ptlrpc_abort_bulk(desc);
+ } else if (desc->bd_export->exp_failed) {
+ DEBUG_REQ(D_ERROR, req, "Eviction on bulk GET");
+ rc = -ENOTCONN;
+ ptlrpc_abort_bulk(desc);
+ } else if (!desc->bd_success ||
+ desc->bd_nob_transferred != desc->bd_nob) {
+ DEBUG_REQ(D_ERROR, req, "%s bulk GET %d(%d)",
+ desc->bd_success ?
+ "truncated" : "network error on",
+ desc->bd_nob_transferred, desc->bd_nob);
+ /* XXX should this be a different errno? */
+ rc = -ETIMEDOUT;
+ }
+ } else {
+ DEBUG_REQ(D_ERROR, req, "ptlrpc_bulk_get failed: rc %d", rc);
+ }
+ comms_error = rc != 0;
+
+ repbody = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF,
+ sizeof(*repbody));
+ memcpy(&repbody->oa, &body->oa, sizeof(repbody->oa));
+
+ if (unlikely(client_cksum != 0 && rc == 0)) {
+ static int cksum_counter;
+ server_cksum = ost_checksum_bulk(desc);
+ repbody->oa.o_valid |= OBD_MD_FLCKSUM;
+ repbody->oa.o_cksum = server_cksum;
+ cksum_counter++;
+ if (unlikely(client_cksum != server_cksum)) {
+ CERROR("client csum %x, server csum %x\n",
+ client_cksum, server_cksum);
+ cksum_counter = 0;
+ } else if ((cksum_counter & (-cksum_counter)) == cksum_counter){
+ CDEBUG(D_INFO, "Checksum %u from %s OK: %x\n",
+ cksum_counter, libcfs_id2str(req->rq_peer),
+ server_cksum);
+ }
+ }
- bulk->bp_buf = lnb->addr;
- bulk->bp_page = lnb->page;
- bulk->bp_flags = lnb->flags;
- bulk->bp_dentry = lnb->dentry;
- bulk->bp_buflen = lnb->len;
- bulk->bp_cb = NULL;
+ sptlrpc_svc_unwrap_bulk(req, desc);
+
+ /* Must commit after prep above in all cases */
+ rc = obd_commitrw(OBD_BRW_WRITE, req->rq_export, &repbody->oa,
+ objcount, ioo, npages, local_nb, oti, rc);
+
+ if (unlikely(client_cksum != server_cksum && rc == 0)) {
+ int new_cksum = ost_checksum_bulk(desc);
+ char *msg;
+ char *via;
+ char *router;
+
+ if (new_cksum == server_cksum)
+ msg = "changed in transit before arrival at OST";
+ else if (new_cksum == client_cksum)
+ msg = "initial checksum before message complete";
+ else
+ msg = "changed in transit AND after initial checksum";
+
+ if (req->rq_peer.nid == desc->bd_sender) {
+ via = router = "";
+ } else {
+ via = " via ";
+ router = libcfs_nid2str(desc->bd_sender);
+ }
+
+ LCONSOLE_ERROR_MSG(0x168, "%s: BAD WRITE CHECKSUM: %s from "
+ "%s%s%s inum "LPU64"/"LPU64" object "
+ LPU64"/"LPU64" extent ["LPU64"-"LPU64"]\n",
+ req->rq_export->exp_obd->obd_name, msg,
+ libcfs_id2str(req->rq_peer),
+ via, router,
+ body->oa.o_valid & OBD_MD_FLFID ?
+ body->oa.o_fid : (__u64)0,
+ body->oa.o_valid & OBD_MD_FLFID ?
+ body->oa.o_generation :(__u64)0,
+ body->oa.o_id,
+ body->oa.o_valid & OBD_MD_FLGROUP ?
+ body->oa.o_gr : (__u64)0,
+ pp_rnb[0].offset,
+ pp_rnb[npages-1].offset+pp_rnb[npages-1].len
+ - 1 );
+ CERROR("client csum %x, original server csum %x, "
+ "server csum now %x\n",
+ client_cksum, server_cksum, new_cksum);
+ }
+
+ ost_nio_pages_put(req, local_nb, npages);
+
+ if (rc == 0) {
+ /* set per-requested niobuf return codes */
+ for (i = j = 0; i < niocount; i++) {
+ int nob = remote_nb[i].len;
+
+ rcs[i] = 0;
+ do {
+ LASSERT(j < npages);
+ if (local_nb[j].rc < 0)
+ rcs[i] = local_nb[j].rc;
+ nob -= pp_rnb[j].len;
+ j++;
+ } while (nob > 0);
+ LASSERT(nob == 0);
+ }
+ LASSERT(j == npages);
+ }
+
+out_lock:
+ ost_brw_lock_put(LCK_PW, ioo, pp_rnb, &lockh);
+out_bulk:
+ ptlrpc_free_bulk(desc);
+ if (no_reply)
+ RETURN(rc);
+out:
+ if (rc == 0) {
+ oti_to_request(oti, req);
+ target_committed_to_req(req);
+ rc = ptlrpc_reply(req);
+ } else if (!comms_error) {
+ /* Only reply if there was no comms problem with bulk */
+ target_committed_to_req(req);
+ req->rq_status = rc;
+ ptlrpc_error(req);
+ } else {
+ if (req->rq_reply_state != NULL) {
+ /* reply out callback would free */
+ ptlrpc_rs_decref(req->rq_reply_state);
+ req->rq_reply_state = NULL;
+ }
+ CWARN("%s: ignoring bulk IO comm error with %s@%s id %s - "
+ "client will retry\n",
+ req->rq_export->exp_obd->obd_name,
+ req->rq_export->exp_client_uuid.uuid,
+ req->rq_export->exp_connection->c_remote_uuid.uuid,
+ libcfs_id2str(req->rq_peer));
+ }
+ RETURN(rc);
+}
+
+static int ost_set_info(struct obd_export *exp, struct ptlrpc_request *req)
+{
+ char *key, *val = NULL;
+ int keylen, vallen, rc = 0;
+ ENTRY;
- /* this advances remote_nb */
- ost_pack_niobuf((void **)&remote_nb, lnb->offset, lnb->len, 0,
- bulk->bp_xid);
+ key = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, 1);
+ if (key == NULL) {
+ DEBUG_REQ(D_HA, req, "no set_info key");
+ RETURN(-EFAULT);
}
+ keylen = lustre_msg_buflen(req->rq_reqmsg, REQ_REC_OFF);
- rc = ptlrpc_register_bulk(desc);
+ rc = lustre_pack_reply(req, 1, NULL, NULL);
if (rc)
- GOTO(fail_bulk, rc);
+ RETURN(rc);
- reply_sent = 1;
- ptlrpc_reply(req->rq_svc, req);
+ vallen = lustre_msg_buflen(req->rq_reqmsg, REQ_REC_OFF + 1);
+ if (vallen)
+ val = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF + 1, 0);
- lwi = LWI_TIMEOUT(obd_timeout * HZ, ost_bulk_timeout, desc);
- rc = l_wait_event(desc->bd_waitq, desc->bd_flags & PTL_BULK_FL_RCVD,
- &lwi);
- if (rc) {
- if (rc != -ETIMEDOUT)
- LBUG();
- GOTO(fail_bulk, rc);
+ if (KEY_IS("evict_by_nid")) {
+ if (val && vallen)
+ obd_export_evict_by_nid(exp->exp_obd, val);
+
+ GOTO(out, rc = 0);
}
- rc = obd_commitrw(cmd, conn, objcount, tmp1, niocount, local_nb,
- desc->bd_desc_private);
- ptlrpc_free_bulk(desc);
- EXIT;
-out_free:
- OBD_FREE(local_nb, niocount * sizeof(*local_nb));
+ rc = obd_set_info_async(exp, keylen, key, vallen, val, NULL);
out:
- if (!reply_sent) {
- if (rc) {
- OBD_FREE(req->rq_repmsg, req->rq_replen);
- req->rq_repmsg = NULL;
- ptlrpc_error(req->rq_svc, req);
- } else
- ptlrpc_reply(req->rq_svc, req);
+ lustre_msg_set_status(req->rq_repmsg, 0);
+ RETURN(rc);
+}
+
+static int ost_get_info(struct obd_export *exp, struct ptlrpc_request *req)
+{
+ char *key;
+ int keylen, rc = 0;
+ int size[2] = { sizeof(struct ptlrpc_body), sizeof(obd_id) };
+ obd_id *reply;
+ ENTRY;
+
+ key = lustre_msg_buf(req->rq_reqmsg, REQ_REC_OFF, 1);
+ if (key == NULL) {
+ DEBUG_REQ(D_HA, req, "no get_info key");
+ RETURN(-EFAULT);
}
- return rc;
+ keylen = lustre_msg_buflen(req->rq_reqmsg, REQ_REC_OFF);
-fail_bulk:
- ptlrpc_free_bulk(desc);
-fail_preprw:
- /* FIXME: how do we undo the preprw? */
- goto out_free;
+ if (keylen < strlen("last_id") || memcmp(key, "last_id", 7) != 0)
+ RETURN(-EPROTO);
+
+ rc = lustre_pack_reply(req, 2, size, NULL);
+ if (rc)
+ RETURN(rc);
+
+ reply = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*reply));
+ rc = obd_get_info(exp, keylen, key, size, reply);
+ lustre_msg_set_status(req->rq_repmsg, 0);
+ RETURN(rc);
}
-static int ost_handle(struct ptlrpc_request *req)
+static int ost_handle_quotactl(struct ptlrpc_request *req)
{
- int rc;
+ struct obd_quotactl *oqctl, *repoqc;
+ int rc, size[2] = { sizeof(struct ptlrpc_body), sizeof(*repoqc) };
ENTRY;
- rc = lustre_unpack_msg(req->rq_reqmsg, req->rq_reqlen);
- if (rc || OBD_FAIL_CHECK(OBD_FAIL_OST_HANDLE_UNPACK)) {
- CERROR("lustre_ost: Invalid request\n");
+ oqctl = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*oqctl),
+ lustre_swab_obd_quotactl);
+ if (oqctl == NULL)
+ GOTO(out, rc = -EPROTO);
+
+ rc = lustre_pack_reply(req, 2, size, NULL);
+ if (rc)
GOTO(out, rc);
+
+ repoqc = lustre_msg_buf(req->rq_repmsg, REPLY_REC_OFF, sizeof(*repoqc));
+
+ req->rq_status = obd_quotactl(req->rq_export, oqctl);
+ *repoqc = *oqctl;
+out:
+ RETURN(rc);
+}
+
+static int ost_handle_quotacheck(struct ptlrpc_request *req)
+{
+ struct obd_quotactl *oqctl;
+ int rc;
+ ENTRY;
+
+ oqctl = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*oqctl),
+ lustre_swab_obd_quotactl);
+ if (oqctl == NULL)
+ RETURN(-EPROTO);
+
+ rc = lustre_pack_reply(req, 1, NULL, NULL);
+ if (rc) {
+ CERROR("ost: out of memory while packing quotacheck reply\n");
+ RETURN(-ENOMEM);
}
- if (req->rq_reqmsg->opc != OST_CONNECT &&
- req->rq_export == NULL) {
- CERROR("lustre_ost: operation %d on unconnected OST\n",
- req->rq_reqmsg->opc);
- GOTO(out, rc = -ENOTCONN);
+ req->rq_status = obd_quotacheck(req->rq_export, oqctl);
+ RETURN(0);
+}
+
+static int ost_llog_handle_connect(struct obd_export *exp,
+ struct ptlrpc_request *req)
+{
+ struct llogd_conn_body *body;
+ int rc;
+ ENTRY;
+
+ body = lustre_msg_buf(req->rq_reqmsg, 1, sizeof(*body));
+ rc = obd_llog_connect(exp, body);
+ RETURN(rc);
+}
+
+
+static int ost_filter_recovery_request(struct ptlrpc_request *req,
+ struct obd_device *obd, int *process)
+{
+ switch (lustre_msg_get_opc(req->rq_reqmsg)) {
+ case OST_CONNECT: /* This will never get here, but for completeness. */
+ case OST_DISCONNECT:
+ *process = 1;
+ RETURN(0);
+
+ case OBD_PING:
+ case OST_CREATE:
+ case OST_DESTROY:
+ case OST_PUNCH:
+ case OST_SETATTR:
+ case OST_SYNC:
+ case OST_WRITE:
+ case OBD_LOG_CANCEL:
+ case LDLM_ENQUEUE:
+ *process = target_queue_recovery_request(req, obd);
+ RETURN(0);
+
+ default:
+ DEBUG_REQ(D_ERROR, req, "not permitted during recovery");
+ *process = -EAGAIN;
+ RETURN(0);
}
+}
- if (strcmp(req->rq_obd->obd_type->typ_name, "ost") != 0)
- GOTO(out, rc = -EINVAL);
+int ost_msg_check_version(struct lustre_msg *msg)
+{
+ int rc;
- switch (req->rq_reqmsg->opc) {
+ switch(lustre_msg_get_opc(msg)) {
case OST_CONNECT:
+ case OST_DISCONNECT:
+ case OBD_PING:
+ case SEC_CTX_INIT:
+ case SEC_CTX_INIT_CONT:
+ case SEC_CTX_FINI:
+ rc = lustre_msg_check_version(msg, LUSTRE_OBD_VERSION);
+ if (rc)
+ CERROR("bad opc %u version %08x, expecting %08x\n",
+ lustre_msg_get_opc(msg),
+ lustre_msg_get_version(msg),
+ LUSTRE_OBD_VERSION);
+ break;
+ case OST_CREATE:
+ case OST_DESTROY:
+ case OST_GETATTR:
+ case OST_SETATTR:
+ case OST_WRITE:
+ case OST_READ:
+ case OST_PUNCH:
+ case OST_STATFS:
+ case OST_SYNC:
+ case OST_SET_INFO:
+ case OST_GET_INFO:
+ case OST_QUOTACHECK:
+ case OST_QUOTACTL:
+ rc = lustre_msg_check_version(msg, LUSTRE_OST_VERSION);
+ if (rc)
+ CERROR("bad opc %u version %08x, expecting %08x\n",
+ lustre_msg_get_opc(msg),
+ lustre_msg_get_version(msg),
+ LUSTRE_OST_VERSION);
+ break;
+ case LDLM_ENQUEUE:
+ case LDLM_CONVERT:
+ case LDLM_CANCEL:
+ case LDLM_BL_CALLBACK:
+ case LDLM_CP_CALLBACK:
+ rc = lustre_msg_check_version(msg, LUSTRE_DLM_VERSION);
+ if (rc)
+ CERROR("bad opc %u version %08x, expecting %08x\n",
+ lustre_msg_get_opc(msg),
+ lustre_msg_get_version(msg),
+ LUSTRE_DLM_VERSION);
+ break;
+ case LLOG_ORIGIN_CONNECT:
+ case OBD_LOG_CANCEL:
+ rc = lustre_msg_check_version(msg, LUSTRE_LOG_VERSION);
+ if (rc)
+ CERROR("bad opc %u version %08x, expecting %08x\n",
+ lustre_msg_get_opc(msg),
+ lustre_msg_get_version(msg),
+ LUSTRE_LOG_VERSION);
+ break;
+ default:
+ CERROR("Unexpected opcode %d\n", lustre_msg_get_opc(msg));
+ rc = -ENOTSUPP;
+ }
+ return rc;
+}
+
+int ost_handle(struct ptlrpc_request *req)
+{
+ struct obd_trans_info trans_info = { 0, };
+ struct obd_trans_info *oti = &trans_info;
+ int should_process, fail = OBD_FAIL_OST_ALL_REPLY_NET, rc = 0;
+ struct obd_device *obd = NULL;
+ ENTRY;
+
+ LASSERT(current->journal_info == NULL);
+
+ /* primordial rpcs don't affect server recovery */
+ switch (lustre_msg_get_opc(req->rq_reqmsg)) {
+ case SEC_CTX_INIT:
+ case SEC_CTX_INIT_CONT:
+ case SEC_CTX_FINI:
+ GOTO(out, rc = 0);
+ }
+
+ /* XXX identical to MDS */
+ if (lustre_msg_get_opc(req->rq_reqmsg) != OST_CONNECT) {
+ int recovering;
+
+ if (req->rq_export == NULL) {
+ CDEBUG(D_HA,"operation %d on unconnected OST from %s\n",
+ lustre_msg_get_opc(req->rq_reqmsg),
+ libcfs_id2str(req->rq_peer));
+ req->rq_status = -ENOTCONN;
+ GOTO(out, rc = -ENOTCONN);
+ }
+
+ obd = req->rq_export->exp_obd;
+
+ /* Check for aborted recovery. */
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ recovering = obd->obd_recovering;
+ spin_unlock_bh(&obd->obd_processing_task_lock);
+ if (recovering) {
+ rc = ost_filter_recovery_request(req, obd,
+ &should_process);
+ if (rc || !should_process)
+ RETURN(rc);
+ else if (should_process < 0) {
+ req->rq_status = should_process;
+ rc = ptlrpc_error(req);
+ RETURN(rc);
+ }
+ }
+ }
+
+ oti_init(oti, req);
+
+ rc = ost_msg_check_version(req->rq_reqmsg);
+ if (rc)
+ RETURN(rc);
+
+ switch (lustre_msg_get_opc(req->rq_reqmsg)) {
+ case OST_CONNECT: {
CDEBUG(D_INODE, "connect\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_CONNECT_NET, 0);
rc = target_handle_connect(req);
+ if (!rc)
+ obd = req->rq_export->exp_obd;
break;
+ }
case OST_DISCONNECT:
CDEBUG(D_INODE, "disconnect\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_DISCONNECT_NET, 0);
case OST_CREATE:
CDEBUG(D_INODE, "create\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_CREATE_NET, 0);
- rc = ost_create(req);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_ENOSPC))
+ GOTO(out, rc = -ENOSPC);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_EROFS))
+ GOTO(out, rc = -EROFS);
+ rc = ost_create(req->rq_export, req, oti);
break;
case OST_DESTROY:
CDEBUG(D_INODE, "destroy\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_DESTROY_NET, 0);
- rc = ost_destroy(req);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_EROFS))
+ GOTO(out, rc = -EROFS);
+ rc = ost_destroy(req->rq_export, req, oti);
break;
case OST_GETATTR:
CDEBUG(D_INODE, "getattr\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_GETATTR_NET, 0);
- rc = ost_getattr(req);
+ rc = ost_getattr(req->rq_export, req);
break;
case OST_SETATTR:
CDEBUG(D_INODE, "setattr\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_SETATTR_NET, 0);
- rc = ost_setattr(req);
- break;
- case OST_OPEN:
- CDEBUG(D_INODE, "open\n");
- OBD_FAIL_RETURN(OBD_FAIL_OST_OPEN_NET, 0);
- rc = ost_open(req);
- break;
- case OST_CLOSE:
- CDEBUG(D_INODE, "close\n");
- OBD_FAIL_RETURN(OBD_FAIL_OST_CLOSE_NET, 0);
- rc = ost_close(req);
+ rc = ost_setattr(req->rq_export, req, oti);
break;
case OST_WRITE:
CDEBUG(D_INODE, "write\n");
+ /* req->rq_request_portal would be nice, if it was set */
+ if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
+ CERROR("%s: deny write request from %s to portal %u\n",
+ req->rq_export->exp_obd->obd_name,
+ obd_export_nid2str(req->rq_export),
+ req->rq_rqbd->rqbd_service->srv_req_portal);
+ GOTO(out, rc = -EPROTO);
+ }
OBD_FAIL_RETURN(OBD_FAIL_OST_BRW_NET, 0);
- rc = ost_brw_write(req);
- /* ost_brw sends its own replies */
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_ENOSPC))
+ GOTO(out, rc = -ENOSPC);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_EROFS))
+ GOTO(out, rc = -EROFS);
+ rc = ost_brw_write(req, oti);
+ LASSERT(current->journal_info == NULL);
+ /* ost_brw_write sends its own replies */
RETURN(rc);
case OST_READ:
CDEBUG(D_INODE, "read\n");
+ /* req->rq_request_portal would be nice, if it was set */
+ if (req->rq_rqbd->rqbd_service->srv_req_portal !=OST_IO_PORTAL){
+ CERROR("%s: deny read request from %s to portal %u\n",
+ req->rq_export->exp_obd->obd_name,
+ obd_export_nid2str(req->rq_export),
+ req->rq_rqbd->rqbd_service->srv_req_portal);
+ GOTO(out, rc = -EPROTO);
+ }
OBD_FAIL_RETURN(OBD_FAIL_OST_BRW_NET, 0);
- rc = ost_brw_read(req);
- /* ost_brw sends its own replies */
+ rc = ost_brw_read(req, oti);
+ LASSERT(current->journal_info == NULL);
+ /* ost_brw_read sends its own replies */
RETURN(rc);
case OST_PUNCH:
CDEBUG(D_INODE, "punch\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_PUNCH_NET, 0);
- rc = ost_punch(req);
+ if (OBD_FAIL_CHECK_ONCE(OBD_FAIL_OST_EROFS))
+ GOTO(out, rc = -EROFS);
+ rc = ost_punch(req->rq_export, req, oti);
break;
case OST_STATFS:
CDEBUG(D_INODE, "statfs\n");
OBD_FAIL_RETURN(OBD_FAIL_OST_STATFS_NET, 0);
rc = ost_statfs(req);
break;
+ case OST_SYNC:
+ CDEBUG(D_INODE, "sync\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_SYNC_NET, 0);
+ rc = ost_sync(req->rq_export, req);
+ break;
+ case OST_SET_INFO:
+ DEBUG_REQ(D_INODE, req, "set_info");
+ rc = ost_set_info(req->rq_export, req);
+ break;
+ case OST_GET_INFO:
+ DEBUG_REQ(D_INODE, req, "get_info");
+ rc = ost_get_info(req->rq_export, req);
+ break;
+ case OST_QUOTACHECK:
+ CDEBUG(D_INODE, "quotacheck\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_QUOTACHECK_NET, 0);
+ rc = ost_handle_quotacheck(req);
+ break;
+ case OST_QUOTACTL:
+ CDEBUG(D_INODE, "quotactl\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OST_QUOTACTL_NET, 0);
+ rc = ost_handle_quotactl(req);
+ break;
+ case OBD_PING:
+ DEBUG_REQ(D_INODE, req, "ping");
+ rc = target_handle_ping(req);
+ break;
+ /* FIXME - just reply status */
+ case LLOG_ORIGIN_CONNECT:
+ DEBUG_REQ(D_INODE, req, "log connect");
+ rc = ost_llog_handle_connect(req->rq_export, req);
+ req->rq_status = rc;
+ rc = lustre_pack_reply(req, 1, NULL, NULL);
+ if (rc)
+ RETURN(rc);
+ RETURN(ptlrpc_reply(req));
+ case OBD_LOG_CANCEL:
+ CDEBUG(D_INODE, "log cancel\n");
+ OBD_FAIL_RETURN(OBD_FAIL_OBD_LOG_CANCEL_NET, 0);
+ rc = llog_origin_handle_cancel(req);
+ req->rq_status = rc;
+ rc = lustre_pack_reply(req, 1, NULL, NULL);
+ if (rc)
+ RETURN(rc);
+ RETURN(ptlrpc_reply(req));
case LDLM_ENQUEUE:
CDEBUG(D_INODE, "enqueue\n");
OBD_FAIL_RETURN(OBD_FAIL_LDLM_ENQUEUE, 0);
- rc = ldlm_handle_enqueue(req);
- if (rc)
- break;
- RETURN(0);
+ rc = ldlm_handle_enqueue(req, ldlm_server_completion_ast,
+ ldlm_server_blocking_ast,
+ ldlm_server_glimpse_ast);
+ fail = OBD_FAIL_OST_LDLM_REPLY_NET;
+ break;
case LDLM_CONVERT:
CDEBUG(D_INODE, "convert\n");
OBD_FAIL_RETURN(OBD_FAIL_LDLM_CONVERT, 0);
rc = ldlm_handle_convert(req);
- if (rc)
- break;
- RETURN(0);
+ break;
case LDLM_CANCEL:
CDEBUG(D_INODE, "cancel\n");
OBD_FAIL_RETURN(OBD_FAIL_LDLM_CANCEL, 0);
rc = ldlm_handle_cancel(req);
- if (rc)
- break;
- RETURN(0);
+ break;
case LDLM_BL_CALLBACK:
case LDLM_CP_CALLBACK:
CDEBUG(D_INODE, "callback\n");
CERROR("callbacks should not happen on OST\n");
- LBUG();
- OBD_FAIL_RETURN(OBD_FAIL_LDLM_BL_CALLBACK, 0);
- break;
+ /* fall through */
default:
+ CERROR("Unexpected opcode %d\n",
+ lustre_msg_get_opc(req->rq_reqmsg));
req->rq_status = -ENOTSUPP;
- rc = ptlrpc_error(req->rq_svc, req);
+ rc = ptlrpc_error(req);
RETURN(rc);
}
+ LASSERT(current->journal_info == NULL);
+
EXIT;
+ /* If we're DISCONNECTing, the export_data is already freed */
+ if (!rc && lustre_msg_get_opc(req->rq_reqmsg) != OST_DISCONNECT)
+ target_committed_to_req(req);
+
out:
- //req->rq_status = rc;
- if (rc) {
- CERROR("ost: processing error (opcode=%d): %d\n",
- req->rq_reqmsg->opc, rc);
- ptlrpc_error(req->rq_svc, req);
- } else {
- CDEBUG(D_INODE, "sending reply\n");
- if (req->rq_repmsg == NULL)
- CERROR("handler for opcode %d returned rc=0 without "
- "creating rq_repmsg; needs to return rc != "
- "0!\n", req->rq_reqmsg->opc);
- ptlrpc_reply(req->rq_svc, req);
- }
+ if (!rc)
+ oti_to_request(oti, req);
+ target_send_reply(req, rc, fail);
return 0;
}
+EXPORT_SYMBOL(ost_handle);
+/*
+ * free per-thread pool created by ost_thread_init().
+ */
+static void ost_thread_done(struct ptlrpc_thread *thread)
+{
+ int i;
+ struct ost_thread_local_cache *tls; /* TLS stands for Thread-Local
+ * Storage */
-#define OST_NUM_THREADS 6
+ ENTRY;
-/* mount the file system (secretly) */
-static int ost_setup(struct obd_device *obddev, obd_count len, void *buf)
+ LASSERT(thread != NULL);
+
+ /*
+ * be prepared to handle partially-initialized pools (because this is
+ * called from ost_thread_init() for cleanup.
+ */
+ tls = thread->t_data;
+ if (tls != NULL) {
+ for (i = 0; i < OST_THREAD_POOL_SIZE; ++ i) {
+ if (tls->page[i] != NULL)
+ __cfs_free_page(tls->page[i]);
+ }
+ OBD_FREE_PTR(tls);
+ thread->t_data = NULL;
+ }
+ EXIT;
+}
+
+/*
+ * initialize per-thread page pool (bug 5137).
+ */
+static int ost_thread_init(struct ptlrpc_thread *thread)
{
- struct obd_ioctl_data* data = buf;
- struct ost_obd *ost = &obddev->u.ost;
- struct obd_device *tgt;
- int err;
+ int result;
int i;
+ struct ost_thread_local_cache *tls;
+
ENTRY;
- if (data->ioc_inllen1 < 1) {
- CERROR("requires a TARGET OBD UUID\n");
- RETURN(-EINVAL);
- }
- if (data->ioc_inllen1 > 37) {
- CERROR("OBD UUID must be less than 38 characters\n");
- RETURN(-EINVAL);
- }
+ LASSERT(thread != NULL);
+ LASSERT(thread->t_data == NULL);
+ LASSERTF(thread->t_id <= OSS_THREADS_MAX, "%u\n", thread->t_id);
+
+ OBD_ALLOC_PTR(tls);
+ if (tls != NULL) {
+ result = 0;
+ thread->t_data = tls;
+ /*
+ * populate pool
+ */
+ for (i = 0; i < OST_THREAD_POOL_SIZE; ++ i) {
+ tls->page[i] = cfs_alloc_page(OST_THREAD_POOL_GFP);
+ if (tls->page[i] == NULL) {
+ ost_thread_done(thread);
+ result = -ENOMEM;
+ break;
+ }
+ }
+ } else
+ result = -ENOMEM;
+ RETURN(result);
+}
- MOD_INC_USE_COUNT;
- tgt = class_uuid2obd(data->ioc_inlbuf1);
- if (!tgt || !(tgt->obd_flags & OBD_ATTACHED) ||
- !(tgt->obd_flags & OBD_SET_UP)) {
- CERROR("device not attached or not set up (%d)\n",
- data->ioc_dev);
- GOTO(error_dec, err = -EINVAL);
- }
+#define OST_WATCHDOG_TIMEOUT (obd_timeout * 1000)
+
+/* Sigh - really, this is an OSS, the _server_, not the _target_ */
+static int ost_setup(struct obd_device *obd, struct lustre_cfg* lcfg)
+{
+ struct ost_obd *ost = &obd->u.ost;
+ struct lprocfs_static_vars lvars;
+ int oss_min_threads;
+ int oss_max_threads;
+ int rc;
+ ENTRY;
+
+ rc = cleanup_group_info();
+ if (rc)
+ RETURN(rc);
+
+ rc = llog_start_commit_thread();
+ if (rc < 0)
+ RETURN(rc);
- err = obd_connect(&ost->ost_conn, tgt, NULL, NULL, NULL);
- if (err) {
- CERROR("fail to connect to device %d\n", data->ioc_dev);
- GOTO(error_dec, err = -EINVAL);
+ lprocfs_init_vars(ost, &lvars);
+ lprocfs_obd_setup(obd, lvars.obd_vars);
+
+ sema_init(&ost->ost_health_sem, 1);
+
+ if (oss_num_threads) {
+ /* If oss_num_threads is set, it is the min and the max. */
+ if (oss_num_threads > OSS_THREADS_MAX)
+ oss_num_threads = OSS_THREADS_MAX;
+ if (oss_num_threads < OSS_THREADS_MIN)
+ oss_num_threads = OSS_THREADS_MIN;
+ oss_max_threads = oss_min_threads = oss_num_threads;
+ } else {
+ /* Base min threads on memory and cpus */
+ oss_min_threads = smp_num_cpus * num_physpages >>
+ (27 - CFS_PAGE_SHIFT);
+ if (oss_min_threads < OSS_THREADS_MIN)
+ oss_min_threads = OSS_THREADS_MIN;
+ /* Insure a 4x range for dynamic threads */
+ if (oss_min_threads > OSS_THREADS_MAX / 4)
+ oss_min_threads = OSS_THREADS_MAX / 4;
+ oss_max_threads = min(OSS_THREADS_MAX, oss_min_threads * 4);
}
- ost->ost_service = ptlrpc_init_svc(OST_NEVENTS, OST_NBUFS,
- OST_BUFSIZE, OST_MAXREQSIZE,
- OST_REQUEST_PORTAL, OSC_REPLY_PORTAL,
- "self", ost_handle, "ost");
- if (!ost->ost_service) {
+ ost->ost_service =
+ ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
+ OST_MAXREPSIZE, OST_REQUEST_PORTAL,
+ OSC_REPLY_PORTAL,
+ OST_WATCHDOG_TIMEOUT, ost_handle,
+ LUSTRE_OSS_NAME, obd->obd_proc_entry,
+ ost_print_req, oss_min_threads,
+ oss_max_threads, "ll_ost",
+ LCT_DT_THREAD);
+ if (ost->ost_service == NULL) {
CERROR("failed to start service\n");
- GOTO(error_disc, err = -EINVAL);
+ GOTO(out_lprocfs, rc = -ENOMEM);
}
- for (i = 0; i < OST_NUM_THREADS; i++) {
- char name[32];
- sprintf(name, "lustre_ost_%02d", i);
- err = ptlrpc_start_thread(obddev, ost->ost_service, name);
- if (err) {
- CERROR("error starting thread #%d: rc %d\n", i, err);
- GOTO(error_disc, err = -EINVAL);
- }
+ rc = ptlrpc_start_threads(obd, ost->ost_service);
+ if (rc)
+ GOTO(out_service, rc = -EINVAL);
+
+ ost->ost_create_service =
+ ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
+ OST_MAXREPSIZE, OST_CREATE_PORTAL,
+ OSC_REPLY_PORTAL,
+ OST_WATCHDOG_TIMEOUT, ost_handle, "ost_create",
+ obd->obd_proc_entry, ost_print_req, 1, 1,
+ "ll_ost_creat", LCT_DT_THREAD);
+ if (ost->ost_create_service == NULL) {
+ CERROR("failed to start OST create service\n");
+ GOTO(out_service, rc = -ENOMEM);
}
+ rc = ptlrpc_start_threads(obd, ost->ost_create_service);
+ if (rc)
+ GOTO(out_create, rc = -EINVAL);
+
+ ost->ost_io_service =
+ ptlrpc_init_svc(OST_NBUFS, OST_BUFSIZE, OST_MAXREQSIZE,
+ OST_MAXREPSIZE, OST_IO_PORTAL,
+ OSC_REPLY_PORTAL,
+ OST_WATCHDOG_TIMEOUT, ost_handle, "ost_io",
+ obd->obd_proc_entry, ost_print_req,
+ oss_min_threads, oss_max_threads,
+ "ll_ost_io", LCT_DT_THREAD);
+ if (ost->ost_io_service == NULL) {
+ CERROR("failed to start OST I/O service\n");
+ GOTO(out_create, rc = -ENOMEM);
+ }
+
+ ost->ost_io_service->srv_init = ost_thread_init;
+ ost->ost_io_service->srv_done = ost_thread_done;
+ ost->ost_io_service->srv_cpu_affinity = 1;
+ rc = ptlrpc_start_threads(obd, ost->ost_io_service);
+ if (rc)
+ GOTO(out_io, rc = -EINVAL);
+
+ ping_evictor_start();
+
RETURN(0);
-error_disc:
- obd_disconnect(&ost->ost_conn);
-error_dec:
- MOD_DEC_USE_COUNT;
- RETURN(err);
+out_io:
+ ptlrpc_unregister_service(ost->ost_io_service);
+ ost->ost_io_service = NULL;
+out_create:
+ ptlrpc_unregister_service(ost->ost_create_service);
+ ost->ost_create_service = NULL;
+out_service:
+ ptlrpc_unregister_service(ost->ost_service);
+ ost->ost_service = NULL;
+out_lprocfs:
+ lprocfs_obd_cleanup(obd);
+ RETURN(rc);
}
-static int ost_cleanup(struct obd_device * obddev)
+static int ost_cleanup(struct obd_device *obd)
{
- struct ost_obd *ost = &obddev->u.ost;
- int err;
-
+ struct ost_obd *ost = &obd->u.ost;
+ int err = 0;
ENTRY;
- if ( !list_empty(&obddev->obd_exports) ) {
- CERROR("still has clients!\n");
- RETURN(-EBUSY);
+ ping_evictor_stop();
+
+ spin_lock_bh(&obd->obd_processing_task_lock);
+ if (obd->obd_recovering) {
+ target_cancel_recovery_timer(obd);
+ obd->obd_recovering = 0;
}
+ spin_unlock_bh(&obd->obd_processing_task_lock);
- ptlrpc_stop_all_threads(ost->ost_service);
+ down(&ost->ost_health_sem);
ptlrpc_unregister_service(ost->ost_service);
+ ptlrpc_unregister_service(ost->ost_create_service);
+ ptlrpc_unregister_service(ost->ost_io_service);
+ ost->ost_service = NULL;
+ ost->ost_create_service = NULL;
+ up(&ost->ost_health_sem);
- err = obd_disconnect(&ost->ost_conn);
- if (err) {
- CERROR("lustre ost: fail to disconnect device\n");
- RETURN(-EINVAL);
- }
+ lprocfs_obd_cleanup(obd);
- MOD_DEC_USE_COUNT;
- RETURN(0);
+ RETURN(err);
+}
+
+static int ost_health_check(struct obd_device *obd)
+{
+ struct ost_obd *ost = &obd->u.ost;
+ int rc = 0;
+
+ down(&ost->ost_health_sem);
+ rc |= ptlrpc_service_health_check(ost->ost_service);
+ rc |= ptlrpc_service_health_check(ost->ost_create_service);
+ rc |= ptlrpc_service_health_check(ost->ost_io_service);
+ up(&ost->ost_health_sem);
+
+ /*
+ * health_check to return 0 on healthy
+ * and 1 on unhealthy.
+ */
+ if( rc != 0)
+ rc = 1;
+
+ return rc;
+}
+
+struct ost_thread_local_cache *ost_tls(struct ptlrpc_request *r)
+{
+ return (struct ost_thread_local_cache *)(r->rq_svc_thread->t_data);
}
/* use obd ops to offer management infrastructure */
static struct obd_ops ost_obd_ops = {
- o_setup: ost_setup,
- o_cleanup: ost_cleanup,
+ .o_owner = THIS_MODULE,
+ .o_setup = ost_setup,
+ .o_cleanup = ost_cleanup,
+ .o_health_check = ost_health_check,
};
+
static int __init ost_init(void)
{
- class_register_type(&ost_obd_ops, LUSTRE_OST_NAME);
- return 0;
+ struct lprocfs_static_vars lvars;
+ int rc;
+ ENTRY;
+
+ lprocfs_init_vars(ost, &lvars);
+ rc = class_register_type(&ost_obd_ops, NULL, lvars.module_vars,
+ LUSTRE_OSS_NAME, NULL);
+
+ if (ost_num_threads != 0 && oss_num_threads == 0) {
+ LCONSOLE_INFO("ost_num_threads module parameter is deprecated, "
+ "use oss_num_threads instead or unset both for "
+ "dynamic thread startup\n");
+ oss_num_threads = ost_num_threads;
+ }
+
+ RETURN(rc);
}
-static void __exit ost_exit(void)
+static void /*__exit*/ ost_exit(void)
{
- class_unregister_type(LUSTRE_OST_NAME);
+ class_unregister_type(LUSTRE_OSS_NAME);
}
MODULE_AUTHOR("Cluster File Systems, Inc. <info@clusterfs.com>");
git://git.whamcloud.com / fs / lustre-release.git / blobdiff