-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
+/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
* GPL HEADER END
*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2013, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Implementation of cl_io for OSC layer.
*
* Author: Nikita Danilov <nikita.danilov@sun.com>
+ * Author: Jinshan Xiong <jinshan.xiong@whamcloud.com>
*/
-/** \addtogroup osc osc @{ */
-
#define DEBUG_SUBSYSTEM S_OSC
#include "osc_cl_internal.h"
+/** \addtogroup osc
+ * @{
+ */
+
/*****************************************************************************
*
* Type conversions.
{
}
-struct cl_page *osc_oap2cl_page(struct osc_async_page *oap)
-{
- return container_of(oap, struct osc_page, ops_oap)->ops_cl.cpl_page;
-}
-
-static void osc_io_unplug(const struct lu_env *env, struct osc_object *osc,
- struct client_obd *cli)
-{
- loi_list_maint(cli, osc->oo_oinfo);
- osc_check_rpcs(env, cli);
- client_obd_list_unlock(&cli->cl_loi_list_lock);
-}
-
-/**
- * How many pages osc_io_submit() queues before checking whether an RPC is
- * ready.
- */
-#define OSC_QUEUE_GRAIN (32)
-
/**
* An implementation of cl_io_operations::cio_io_submit() method for osc
* layer. Iterates over pages in the in-queue, prepares each for io by calling
* cl_page_prep() and then either submits them through osc_io_submit_page()
* or, if page is already submitted, changes osc flags through
- * osc_set_async_flags_base().
+ * osc_set_async_flags().
*/
static int osc_io_submit(const struct lu_env *env,
const struct cl_io_slice *ios,
- enum cl_req_type crt, struct cl_2queue *queue)
+ enum cl_req_type crt, struct cl_2queue *queue)
{
struct cl_page *page;
struct cl_page *tmp;
- struct osc_object *osc0 = NULL;
struct client_obd *cli = NULL;
struct osc_object *osc = NULL; /* to keep gcc happy */
struct osc_page *opg;
struct cl_io *io;
+ CFS_LIST_HEAD (list);
- struct cl_page_list *qin = &queue->c2_qin;
- struct cl_page_list *qout = &queue->c2_qout;
- int queued = 0;
- int result = 0;
+ struct cl_page_list *qin = &queue->c2_qin;
+ struct cl_page_list *qout = &queue->c2_qout;
+ int queued = 0;
+ int result = 0;
+ int cmd;
+ int brw_flags;
+ int max_pages;
+
+ LASSERT(qin->pl_nr > 0);
+
+ CDEBUG(D_CACHE, "%d %d\n", qin->pl_nr, crt);
+
+ osc = cl2osc(ios->cis_obj);
+ cli = osc_cli(osc);
+ max_pages = cli->cl_max_pages_per_rpc;
- LASSERT(qin->pl_nr > 0);
+ cmd = crt == CRT_WRITE ? OBD_BRW_WRITE : OBD_BRW_READ;
+ brw_flags = osc_io_srvlock(cl2osc_io(env, ios)) ? OBD_BRW_SRVLOCK : 0;
- CDEBUG(D_INFO, "%i %i\n", qin->pl_nr, crt);
/*
* NOTE: here @page is a top-level page. This is done to avoid
* creation of sub-page-list.
*/
cl_page_list_for_each_safe(page, tmp, qin) {
struct osc_async_page *oap;
- struct obd_export *exp;
/* Top level IO. */
io = page->cp_owner;
opg = osc_cl_page_osc(page);
oap = &opg->ops_oap;
- osc = cl2osc(opg->ops_cl.cpl_obj);
- exp = osc_export(osc);
-
- /*
- * This can be checked without cli->cl_loi_list_lock, because
- * ->oap_*_item are always manipulated when the page is owned.
- */
- if (!list_empty(&oap->oap_urgent_item) ||
- !list_empty(&oap->oap_rpc_item)) {
+ LASSERT(osc == oap->oap_obj);
+
+ if (!cfs_list_empty(&oap->oap_pending_item) ||
+ !cfs_list_empty(&oap->oap_rpc_item)) {
+ CDEBUG(D_CACHE, "Busy oap %p page %p for submit.\n",
+ oap, opg);
result = -EBUSY;
break;
}
- if (osc0 == NULL) { /* first iteration */
- cli = &exp->exp_obd->u.cli;
- osc0 = osc;
- } else /* check that all pages are against the same object
- * (for now) */
- LASSERT(osc == osc0);
- if (queued++ == 0)
- client_obd_list_lock(&cli->cl_loi_list_lock);
result = cl_page_prep(env, io, page, crt);
- if (result == 0) {
- cl_page_list_move(qout, qin, page);
- if (list_empty(&oap->oap_pending_item)) {
- osc_io_submit_page(env, cl2osc_io(env, ios),
- opg, crt);
- } else {
- result = osc_set_async_flags_base(cli,
- osc->oo_oinfo,
- oap,
- OSC_FLAGS);
- if (result != 0)
- break;
- }
- } else {
+ if (result != 0) {
LASSERT(result < 0);
if (result != -EALREADY)
break;
* is not dirty.
*/
result = 0;
+ continue;
}
- /*
- * Don't keep client_obd_list_lock() for too long.
- *
- * XXX client_obd_list lock has to be unlocked periodically to
- * avoid soft-lockups that tend to happen otherwise (see bug
- * 16651). On the other hand, osc_io_submit_page() queues a
- * page with ASYNC_URGENT flag and so all pages queued up
- * until this point are sent out immediately by
- * osc_io_unplug() resulting in sub-optimal RPCs (sub-optimal
- * RPCs only happen during `warm up' phase when less than
- * cl_max_rpcs_in_flight RPCs are in flight). To balance these
- * conflicting requirements, one might unplug once enough
- * pages to form a large RPC were queued (i.e., use
- * cli->cl_max_pages_per_rpc as OSC_QUEUE_GRAIN, see
- * lop_makes_rpc()), or ignore soft-lockup issue altogether.
- *
- * XXX lock_need_resched() should be used here, but it is not
- * available in the older of supported kernels.
- */
- if (queued > OSC_QUEUE_GRAIN || cfs_need_resched()) {
- queued = 0;
- osc_io_unplug(env, osc, cli);
- cfs_cond_resched();
- }
- }
-
- LASSERT(ergo(result == 0, cli != NULL));
- LASSERT(ergo(result == 0, osc == osc0));
- if (queued > 0)
- osc_io_unplug(env, osc, cli);
- CDEBUG(D_INFO, "%i/%i %i\n", qin->pl_nr, qout->pl_nr, result);
- return qout->pl_nr > 0 ? 0 : result;
+ cl_page_list_move(qout, qin, page);
+ spin_lock(&oap->oap_lock);
+ oap->oap_async_flags = ASYNC_URGENT|ASYNC_READY;
+ oap->oap_async_flags |= ASYNC_COUNT_STABLE;
+ spin_unlock(&oap->oap_lock);
+
+ osc_page_submit(env, opg, crt, brw_flags);
+ cfs_list_add_tail(&oap->oap_pending_item, &list);
+ if (++queued == max_pages) {
+ queued = 0;
+ result = osc_queue_sync_pages(env, osc, &list, cmd,
+ brw_flags);
+ if (result < 0)
+ break;
+ }
+ }
+
+ if (queued > 0)
+ result = osc_queue_sync_pages(env, osc, &list, cmd, brw_flags);
+
+ CDEBUG(D_INFO, "%d/%d %d\n", qin->pl_nr, qout->pl_nr, result);
+ return qout->pl_nr > 0 ? 0 : result;
}
static void osc_page_touch_at(const struct lu_env *env,
{
struct osc_device *dev = lu2osc_dev(slice->cpl_obj->co_lu.lo_dev);
struct obd_import *imp = class_exp2cliimp(dev->od_exp);
-
+ struct osc_io *oio = cl2osc_io(env, ios);
+ int result = 0;
ENTRY;
/*
* This implements OBD_BRW_CHECK logic from old client.
*/
- RETURN(imp == NULL || imp->imp_invalid ? -EIO : 0);
+ if (imp == NULL || imp->imp_invalid)
+ result = -EIO;
+ if (result == 0 && oio->oi_lockless)
+ /* this page contains `invalid' data, but who cares?
+ * nobody can access the invalid data.
+ * in osc_io_commit_write(), we're going to write exact
+ * [from, to) bytes of this page to OST. -jay */
+ cl_page_export(env, slice->cpl_page, 1);
+
+ RETURN(result);
}
static int osc_io_commit_write(const struct lu_env *env,
const struct cl_page_slice *slice,
unsigned from, unsigned to)
{
+ struct osc_io *oio = cl2osc_io(env, ios);
struct osc_page *opg = cl2osc_page(slice);
struct osc_object *obj = cl2osc(opg->ops_cl.cpl_obj);
struct osc_async_page *oap = &opg->ops_oap;
cfs_capable(CFS_CAP_SYS_RESOURCE))
oap->oap_brw_flags |= OBD_BRW_NOQUOTA;
+ if (oio->oi_lockless)
+ /* see osc_io_prepare_write() for lockless io handling. */
+ cl_page_clip(env, slice->cpl_page, from, to);
+
RETURN(0);
}
io = ios->cis_io;
fio = &io->u.ci_fault;
- CDEBUG(D_INFO, "%lu %i %i\n",
+ CDEBUG(D_INFO, "%lu %d %d\n",
fio->ft_index, fio->ft_writable, fio->ft_nob);
/*
* If mapping is writeable, adjust kms to cover this page,
RETURN(0);
}
-static int osc_punch_upcall(void *a, int rc)
+static int osc_async_upcall(void *a, int rc)
{
- struct osc_punch_cbargs *args = a;
+ struct osc_async_cbargs *args = a;
args->opc_rc = rc;
- complete(&args->opc_sync);
+ complete(&args->opc_sync);
return 0;
}
-#ifdef __KERNEL__
+#if defined(__KERNEL__)
/**
* Checks that there are no pages being written in the extent being truncated.
*/
+static int trunc_check_cb(const struct lu_env *env, struct cl_io *io,
+ struct cl_page *page, void *cbdata)
+{
+ const struct cl_page_slice *slice;
+ struct osc_page *ops;
+ struct osc_async_page *oap;
+ __u64 start = *(__u64 *)cbdata;
+
+ slice = cl_page_at(page, &osc_device_type);
+ LASSERT(slice != NULL);
+ ops = cl2osc_page(slice);
+ oap = &ops->ops_oap;
+
+ if (oap->oap_cmd & OBD_BRW_WRITE &&
+ !cfs_list_empty(&oap->oap_pending_item))
+ CL_PAGE_DEBUG(D_ERROR, env, page, "exists " LPU64 "/%s.\n",
+ start, current->comm);
+
+#ifdef __linux__
+ {
+ struct page *vmpage = cl_page_vmpage(env, page);
+ if (PageLocked(vmpage))
+ CDEBUG(D_CACHE, "page %p index %lu locked for %d.\n",
+ ops, page->cp_index,
+ (oap->oap_cmd & OBD_BRW_RWMASK));
+ }
+#endif
+
+ return CLP_GANG_OKAY;
+}
+
static void osc_trunc_check(const struct lu_env *env, struct cl_io *io,
- struct osc_io *oio, size_t size)
+ struct osc_io *oio, __u64 size)
{
- struct osc_page *cp;
- struct osc_object *obj;
- struct cl_object *clob;
- struct cl_page *page;
- struct cl_page_list *list;
- int partial;
- pgoff_t start;
+ struct cl_object *clob;
+ int partial;
+ pgoff_t start;
clob = oio->oi_cl.cis_obj;
- obj = cl2osc(clob);
start = cl_index(clob, size);
partial = cl_offset(clob, start) < size;
- list = &osc_env_info(env)->oti_plist;
/*
* Complain if there are pages in the truncated region.
- *
- * XXX this is quite expensive check.
*/
- cl_page_list_init(list);
- cl_page_gang_lookup(env, clob, io, start + partial, CL_PAGE_EOF, list);
-
- cl_page_list_for_each(page, list)
- CL_PAGE_DEBUG(D_ERROR, env, page, "exists %lu\n", start);
-
- cl_page_list_disown(env, io, list);
- cl_page_list_fini(env, list);
-
- spin_lock(&obj->oo_seatbelt);
- list_for_each_entry(cp, &obj->oo_inflight[CRT_WRITE], ops_inflight) {
- page = cp->ops_cl.cpl_page;
- if (page->cp_index >= start + partial) {
- cfs_task_t *submitter;
-
- submitter = cp->ops_submitter;
- /*
- * XXX Linux specific debugging stuff.
- */
- CL_PAGE_DEBUG(D_ERROR, env, page, "%s/%i %lu\n",
- submitter->comm, submitter->pid, start);
- libcfs_debug_dumpstack(submitter);
- }
- }
- spin_unlock(&obj->oo_seatbelt);
+ cl_page_gang_lookup(env, clob, io, start + partial, CL_PAGE_EOF,
+ trunc_check_cb, (void *)&size);
}
#else /* __KERNEL__ */
-# define osc_trunc_check(env, io, oio, size) do {;} while (0)
+static void osc_trunc_check(const struct lu_env *env, struct cl_io *io,
+ struct osc_io *oio, __u64 size)
+{
+ return;
+}
#endif
-static int osc_io_trunc_start(const struct lu_env *env,
- const struct cl_io_slice *slice)
+static int osc_io_setattr_start(const struct lu_env *env,
+ const struct cl_io_slice *slice)
{
struct cl_io *io = slice->cis_io;
struct osc_io *oio = cl2osc_io(env, slice);
struct lov_oinfo *loi = cl2osc(obj)->oo_oinfo;
struct cl_attr *attr = &osc_env_info(env)->oti_attr;
struct obdo *oa = &oio->oi_oa;
- struct osc_punch_cbargs *cbargs = &oio->oi_punch_cbarg;
- struct obd_capa *capa;
- loff_t size = io->u.ci_truncate.tr_size;
- int result = 0;
+ struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
+ __u64 size = io->u.ci_setattr.sa_attr.lvb_size;
+ unsigned int ia_valid = io->u.ci_setattr.sa_valid;
+ int result = 0;
+ struct obd_info oinfo = { { { 0 } } };
+
+ /* truncate cache dirty pages first */
+ if (cl_io_is_trunc(io))
+ result = osc_cache_truncate_start(env, oio, cl2osc(obj), size);
+
+ if (result == 0 && oio->oi_lockless == 0) {
+ cl_object_attr_lock(obj);
+ result = cl_object_attr_get(env, obj, attr);
+ if (result == 0) {
+ struct ost_lvb *lvb = &io->u.ci_setattr.sa_attr;
+ unsigned int cl_valid = 0;
+
+ if (ia_valid & ATTR_SIZE) {
+ attr->cat_size = attr->cat_kms = size;
+ cl_valid = (CAT_SIZE | CAT_KMS);
+ }
+ if (ia_valid & ATTR_MTIME_SET) {
+ attr->cat_mtime = lvb->lvb_mtime;
+ cl_valid |= CAT_MTIME;
+ }
+ if (ia_valid & ATTR_ATIME_SET) {
+ attr->cat_atime = lvb->lvb_atime;
+ cl_valid |= CAT_ATIME;
+ }
+ if (ia_valid & ATTR_CTIME_SET) {
+ attr->cat_ctime = lvb->lvb_ctime;
+ cl_valid |= CAT_CTIME;
+ }
+ result = cl_object_attr_set(env, obj, attr, cl_valid);
+ }
+ cl_object_attr_unlock(obj);
+ }
+ memset(oa, 0, sizeof(*oa));
+ if (result == 0) {
+ oa->o_oi = loi->loi_oi;
+ oa->o_mtime = attr->cat_mtime;
+ oa->o_atime = attr->cat_atime;
+ oa->o_ctime = attr->cat_ctime;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLATIME |
+ OBD_MD_FLCTIME | OBD_MD_FLMTIME;
+ if (ia_valid & ATTR_SIZE) {
+ oa->o_size = size;
+ oa->o_blocks = OBD_OBJECT_EOF;
+ oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
+
+ if (oio->oi_lockless) {
+ oa->o_flags = OBD_FL_SRVLOCK;
+ oa->o_valid |= OBD_MD_FLFLAGS;
+ }
+ } else {
+ LASSERT(oio->oi_lockless == 0);
+ }
+ oinfo.oi_oa = oa;
+ oinfo.oi_capa = io->u.ci_setattr.sa_capa;
+ init_completion(&cbargs->opc_sync);
+
+ if (ia_valid & ATTR_SIZE)
+ result = osc_punch_base(osc_export(cl2osc(obj)),
+ &oinfo, osc_async_upcall,
+ cbargs, PTLRPCD_SET);
+ else
+ result = osc_setattr_async_base(osc_export(cl2osc(obj)),
+ &oinfo, NULL,
+ osc_async_upcall,
+ cbargs, PTLRPCD_SET);
+ cbargs->opc_rpc_sent = result == 0;
+ }
+ return result;
+}
- memset(oa, 0, sizeof(*oa));
+static void osc_io_setattr_end(const struct lu_env *env,
+ const struct cl_io_slice *slice)
+{
+ struct cl_io *io = slice->cis_io;
+ struct osc_io *oio = cl2osc_io(env, slice);
+ struct cl_object *obj = slice->cis_obj;
+ struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
+ int result = 0;
- osc_trunc_check(env, io, oio, size);
+ if (cbargs->opc_rpc_sent) {
+ wait_for_completion(&cbargs->opc_sync);
+ result = io->ci_result = cbargs->opc_rc;
+ }
+ if (result == 0) {
+ if (oio->oi_lockless) {
+ /* lockless truncate */
+ struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
+
+ LASSERT(cl_io_is_trunc(io));
+ /* XXX: Need a lock. */
+ osd->od_stats.os_lockless_truncates++;
+ }
+ }
+
+ if (cl_io_is_trunc(io)) {
+ __u64 size = io->u.ci_setattr.sa_attr.lvb_size;
+ osc_trunc_check(env, io, oio, size);
+ if (oio->oi_trunc != NULL) {
+ osc_cache_truncate_end(env, oio, cl2osc(obj));
+ oio->oi_trunc = NULL;
+ }
+ }
+}
+
+static int osc_io_read_start(const struct lu_env *env,
+ const struct cl_io_slice *slice)
+{
+ struct osc_io *oio = cl2osc_io(env, slice);
+ struct cl_object *obj = slice->cis_obj;
+ struct cl_attr *attr = &osc_env_info(env)->oti_attr;
+ int rc = 0;
+ ENTRY;
+
+ if (oio->oi_lockless == 0 && !slice->cis_io->ci_noatime) {
+ cl_object_attr_lock(obj);
+ attr->cat_atime = LTIME_S(CFS_CURRENT_TIME);
+ rc = cl_object_attr_set(env, obj, attr, CAT_ATIME);
+ cl_object_attr_unlock(obj);
+ }
+
+ RETURN(rc);
+}
+
+static int osc_io_write_start(const struct lu_env *env,
+ const struct cl_io_slice *slice)
+{
+ struct osc_io *oio = cl2osc_io(env, slice);
+ struct cl_object *obj = slice->cis_obj;
+ struct cl_attr *attr = &osc_env_info(env)->oti_attr;
+ int result = 0;
+ ENTRY;
if (oio->oi_lockless == 0) {
+ OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_DELAY_SETTIME, 1);
cl_object_attr_lock(obj);
result = cl_object_attr_get(env, obj, attr);
if (result == 0) {
- attr->cat_size = attr->cat_kms = size;
+ attr->cat_mtime = attr->cat_ctime =
+ LTIME_S(CFS_CURRENT_TIME);
result = cl_object_attr_set(env, obj, attr,
- CAT_SIZE|CAT_KMS);
+ CAT_MTIME | CAT_CTIME);
}
cl_object_attr_unlock(obj);
}
+ RETURN(result);
+}
- if (result == 0) {
- oa->o_id = loi->loi_id;
- oa->o_gr = loi->loi_gr;
- oa->o_mtime = attr->cat_mtime;
- oa->o_atime = attr->cat_atime;
- oa->o_ctime = attr->cat_ctime;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLATIME |
- OBD_MD_FLCTIME | OBD_MD_FLMTIME;
- if (oio->oi_lockless) {
- oa->o_flags = OBD_FL_TRUNCLOCK;
- oa->o_valid |= OBD_MD_FLFLAGS;
- }
- oa->o_size = size;
- oa->o_blocks = OBD_OBJECT_EOF;
- oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
-
- capa = io->u.ci_truncate.tr_capa;
- init_completion(&cbargs->opc_sync);
- result = osc_punch_base(osc_export(cl2osc(obj)), oa, capa,
- osc_punch_upcall, cbargs, PTLRPCD_SET);
- }
- return result;
+static int osc_fsync_ost(const struct lu_env *env, struct osc_object *obj,
+ struct cl_fsync_io *fio)
+{
+ struct osc_io *oio = osc_env_io(env);
+ struct obdo *oa = &oio->oi_oa;
+ struct obd_info *oinfo = &oio->oi_info;
+ struct lov_oinfo *loi = obj->oo_oinfo;
+ struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
+ int rc = 0;
+ ENTRY;
+
+ memset(oa, 0, sizeof(*oa));
+ oa->o_oi = loi->loi_oi;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLGROUP;
+
+ /* reload size abd blocks for start and end of sync range */
+ oa->o_size = fio->fi_start;
+ oa->o_blocks = fio->fi_end;
+ oa->o_valid |= OBD_MD_FLSIZE | OBD_MD_FLBLOCKS;
+
+ obdo_set_parent_fid(oa, fio->fi_fid);
+
+ memset(oinfo, 0, sizeof(*oinfo));
+ oinfo->oi_oa = oa;
+ oinfo->oi_capa = fio->fi_capa;
+ init_completion(&cbargs->opc_sync);
+
+ rc = osc_sync_base(osc_export(obj), oinfo, osc_async_upcall, cbargs,
+ PTLRPCD_SET);
+ RETURN(rc);
}
-static void osc_io_trunc_end(const struct lu_env *env,
- const struct cl_io_slice *slice)
+static int osc_io_fsync_start(const struct lu_env *env,
+ const struct cl_io_slice *slice)
{
- struct cl_io *io = slice->cis_io;
- struct osc_io *oio = cl2osc_io(env, slice);
- struct osc_punch_cbargs *cbargs = &oio->oi_punch_cbarg;
- struct obdo *oa = &oio->oi_oa;
- int result;
+ struct cl_io *io = slice->cis_io;
+ struct cl_fsync_io *fio = &io->u.ci_fsync;
+ struct cl_object *obj = slice->cis_obj;
+ struct osc_object *osc = cl2osc(obj);
+ pgoff_t start = cl_index(obj, fio->fi_start);
+ pgoff_t end = cl_index(obj, fio->fi_end);
+ int result = 0;
+ ENTRY;
+
+ if (fio->fi_end == OBD_OBJECT_EOF)
+ end = CL_PAGE_EOF;
+
+ result = osc_cache_writeback_range(env, osc, start, end, 0,
+ fio->fi_mode == CL_FSYNC_DISCARD);
+ if (result > 0) {
+ fio->fi_nr_written += result;
+ result = 0;
+ }
+ if (fio->fi_mode == CL_FSYNC_ALL) {
+ int rc;
+
+ /* we have to wait for writeback to finish before we can
+ * send OST_SYNC RPC. This is bad because it causes extents
+ * to be written osc by osc. However, we usually start
+ * writeback before CL_FSYNC_ALL so this won't have any real
+ * problem. */
+ rc = osc_cache_wait_range(env, osc, start, end);
+ if (result == 0)
+ result = rc;
+ rc = osc_fsync_ost(env, osc, fio);
+ if (result == 0)
+ result = rc;
+ }
+
+ RETURN(result);
+}
- wait_for_completion(&cbargs->opc_sync);
+static void osc_io_fsync_end(const struct lu_env *env,
+ const struct cl_io_slice *slice)
+{
+ struct cl_fsync_io *fio = &slice->cis_io->u.ci_fsync;
+ struct cl_object *obj = slice->cis_obj;
+ pgoff_t start = cl_index(obj, fio->fi_start);
+ pgoff_t end = cl_index(obj, fio->fi_end);
+ int result = 0;
+
+ if (fio->fi_mode == CL_FSYNC_LOCAL) {
+ result = osc_cache_wait_range(env, cl2osc(obj), start, end);
+ } else if (fio->fi_mode == CL_FSYNC_ALL) {
+ struct osc_io *oio = cl2osc_io(env, slice);
+ struct osc_async_cbargs *cbargs = &oio->oi_cbarg;
+
+ wait_for_completion(&cbargs->opc_sync);
+ if (result == 0)
+ result = cbargs->opc_rc;
+ }
+ slice->cis_io->ci_result = result;
+}
- result = io->ci_result = cbargs->opc_rc;
- if (result == 0) {
- struct cl_object *obj = slice->cis_obj;
- if (oio->oi_lockless == 0) {
- struct cl_attr *attr = &osc_env_info(env)->oti_attr;
- int valid = 0;
-
- /* Update kms & size */
- if (oa->o_valid & OBD_MD_FLSIZE) {
- attr->cat_size = oa->o_size;
- attr->cat_kms = oa->o_size;
- valid |= CAT_KMS|CAT_SIZE;
- }
- if (oa->o_valid & OBD_MD_FLBLOCKS) {
- attr->cat_blocks = oa->o_blocks;
- valid |= CAT_BLOCKS;
- }
- if (oa->o_valid & OBD_MD_FLMTIME) {
- attr->cat_mtime = oa->o_mtime;
- valid |= CAT_MTIME;
- }
- if (oa->o_valid & OBD_MD_FLCTIME) {
- attr->cat_ctime = oa->o_ctime;
- valid |= CAT_CTIME;
- }
- if (oa->o_valid & OBD_MD_FLATIME) {
- attr->cat_atime = oa->o_atime;
- valid |= CAT_ATIME;
- }
- cl_object_attr_lock(obj);
- result = cl_object_attr_set(env, obj, attr, valid);
- cl_object_attr_unlock(obj);
- } else { /* lockless truncate */
- struct osc_device *osd = lu2osc_dev(obj->co_lu.lo_dev);
- /* XXX: Need a lock. */
- osd->od_stats.os_lockless_truncates++;
- }
- }
+static void osc_io_end(const struct lu_env *env,
+ const struct cl_io_slice *slice)
+{
+ struct osc_io *oio = cl2osc_io(env, slice);
- /* return result; */
+ if (oio->oi_active) {
+ osc_extent_release(env, oio->oi_active);
+ oio->oi_active = NULL;
+ }
}
static const struct cl_io_operations osc_io_ops = {
.op = {
[CIT_READ] = {
+ .cio_start = osc_io_read_start,
.cio_fini = osc_io_fini
},
[CIT_WRITE] = {
+ .cio_start = osc_io_write_start,
+ .cio_end = osc_io_end,
.cio_fini = osc_io_fini
},
- [CIT_TRUNC] = {
- .cio_start = osc_io_trunc_start,
- .cio_end = osc_io_trunc_end
+ [CIT_SETATTR] = {
+ .cio_start = osc_io_setattr_start,
+ .cio_end = osc_io_setattr_end
},
[CIT_FAULT] = {
- .cio_fini = osc_io_fini,
- .cio_start = osc_io_fault_start
- },
+ .cio_start = osc_io_fault_start,
+ .cio_end = osc_io_end,
+ .cio_fini = osc_io_fini
+ },
+ [CIT_FSYNC] = {
+ .cio_start = osc_io_fsync_start,
+ .cio_end = osc_io_fsync_end,
+ .cio_fini = osc_io_fini
+ },
[CIT_MISC] = {
.cio_fini = osc_io_fini
}
/**
* Implementation of struct cl_req_operations::cro_attr_set() for osc
- * layer. osc is responsible for struct obdo::o_id and struct obdo::o_gr
+ * layer. osc is responsible for struct obdo::o_id and struct obdo::o_seq
* fields.
*/
static void osc_req_attr_set(const struct lu_env *env,
- const struct cl_req_slice *slice,
- const struct cl_object *obj,
- struct cl_req_attr *attr, obd_valid flags)
+ const struct cl_req_slice *slice,
+ const struct cl_object *obj,
+ struct cl_req_attr *attr, obd_valid flags)
{
- struct lov_oinfo *oinfo;
- struct cl_req *clerq;
- struct cl_page *apage; /* _some_ page in @clerq */
- struct cl_lock *lock; /* _some_ lock protecting @apage */
- struct osc_lock *olck;
- struct osc_page *opg;
- struct obdo *oa;
-
- oa = attr->cra_oa;
- oinfo = cl2osc(obj)->oo_oinfo;
- if (flags & OBD_MD_FLID) {
- oa->o_id = oinfo->loi_id;
- oa->o_valid |= OBD_MD_FLID;
- }
- if (flags & OBD_MD_FLGROUP) {
- oa->o_gr = oinfo->loi_gr;
- oa->o_valid |= OBD_MD_FLGROUP;
- }
- if (flags & OBD_MD_FLHANDLE) {
+ struct lov_oinfo *oinfo;
+ struct cl_req *clerq;
+ struct cl_page *apage; /* _some_ page in @clerq */
+ struct cl_lock *lock; /* _some_ lock protecting @apage */
+ struct osc_lock *olck;
+ struct osc_page *opg;
+ struct obdo *oa;
+ struct ost_lvb *lvb;
+
+ oinfo = cl2osc(obj)->oo_oinfo;
+ lvb = &oinfo->loi_lvb;
+ oa = attr->cra_oa;
+
+ if ((flags & OBD_MD_FLMTIME) != 0) {
+ oa->o_mtime = lvb->lvb_mtime;
+ oa->o_valid |= OBD_MD_FLMTIME;
+ }
+ if ((flags & OBD_MD_FLATIME) != 0) {
+ oa->o_atime = lvb->lvb_atime;
+ oa->o_valid |= OBD_MD_FLATIME;
+ }
+ if ((flags & OBD_MD_FLCTIME) != 0) {
+ oa->o_ctime = lvb->lvb_ctime;
+ oa->o_valid |= OBD_MD_FLCTIME;
+ }
+ if (flags & OBD_MD_FLGROUP) {
+ ostid_set_seq(&oa->o_oi, ostid_seq(&oinfo->loi_oi));
+ oa->o_valid |= OBD_MD_FLGROUP;
+ }
+ if (flags & OBD_MD_FLID) {
+ ostid_set_id(&oa->o_oi, ostid_id(&oinfo->loi_oi));
+ oa->o_valid |= OBD_MD_FLID;
+ }
+ if (flags & OBD_MD_FLHANDLE) {
clerq = slice->crs_req;
- LASSERT(!list_empty(&clerq->crq_pages));
+ LASSERT(!cfs_list_empty(&clerq->crq_pages));
apage = container_of(clerq->crq_pages.next,
struct cl_page, cp_flight);
opg = osc_cl_page_osc(apage);
apage = opg->ops_cl.cpl_page; /* now apage is a sub-page */
lock = cl_lock_at_page(env, apage->cp_obj, apage, NULL, 1, 1);
- LASSERT(lock != NULL);
+ if (lock == NULL) {
+ struct cl_object_header *head;
+ struct cl_lock *scan;
+
+ head = cl_object_header(apage->cp_obj);
+ cfs_list_for_each_entry(scan, &head->coh_locks,
+ cll_linkage)
+ CL_LOCK_DEBUG(D_ERROR, env, scan,
+ "no cover page!\n");
+ CL_PAGE_DEBUG(D_ERROR, env, apage,
+ "dump uncover page!\n");
+ libcfs_debug_dumpstack(NULL);
+ LBUG();
+ }
+
olck = osc_lock_at(lock);
LASSERT(olck != NULL);
+ LASSERT(ergo(opg->ops_srvlock, olck->ols_lock == NULL));
/* check for lockless io. */
if (olck->ols_lock != NULL) {
oa->o_handle = olck->ols_lock->l_remote_handle;
struct osc_req *or;
int result;
- OBD_SLAB_ALLOC_PTR_GFP(or, osc_req_kmem, CFS_ALLOC_IO);
+ OBD_SLAB_ALLOC_PTR_GFP(or, osc_req_kmem, __GFP_IO);
if (or != NULL) {
cl_req_slice_add(req, &or->or_cl, dev, &osc_req_ops);
result = 0;
git://git.whamcloud.com / fs / lustre-release.git / blobdiff