* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2012, 2016, Intel Corporation.
+ * Copyright (c) 2012, 2017, Intel Corporation.
*
*/
/*
#define DEBUG_SUBSYSTEM S_OSC
-#include "osc_cl_internal.h"
+#include <lustre_osc.h>
+
#include "osc_internal.h"
static int extent_debug; /* set it to be true for more debug */
static void osc_free_grant(struct client_obd *cli, unsigned int nr_pages,
unsigned int lost_grant, unsigned int dirty_grant);
-static void osc_extent_tree_dump0(int level, struct osc_object *obj,
+static void osc_extent_tree_dump0(int mask, struct osc_object *obj,
const char *func, int line);
-#define osc_extent_tree_dump(lvl, obj) \
- osc_extent_tree_dump0(lvl, obj, __func__, __LINE__)
+#define osc_extent_tree_dump(mask, obj) \
+ osc_extent_tree_dump0(mask, obj, __func__, __LINE__)
static void osc_unreserve_grant(struct client_obd *cli, unsigned int reserved,
unsigned int unused);
static const char *oes_strings[] = {
"inv", "active", "cache", "locking", "lockdone", "rpc", "trunc", NULL };
-#define OSC_EXTENT_DUMP(lvl, extent, fmt, ...) do { \
+#define OSC_EXTENT_DUMP_WITH_LOC(file, func, line, mask, extent, fmt, ...) do {\
+ static struct cfs_debug_limit_state cdls; \
struct osc_extent *__ext = (extent); \
char __buf[16]; \
\
- CDEBUG(lvl, \
+ __CDEBUG_WITH_LOC(file, func, line, mask, &cdls, \
"extent %p@{" EXTSTR ", " \
"[%d|%d|%c|%s|%s|%p], [%d|%d|%c|%c|%p|%u|%p]} " fmt, \
/* ----- extent part 0 ----- */ \
__ext, EXTPARA(__ext), \
/* ----- part 1 ----- */ \
- atomic_read(&__ext->oe_refc), \
- atomic_read(&__ext->oe_users), \
+ atomic_read(&__ext->oe_refc), \
+ atomic_read(&__ext->oe_users), \
list_empty_marker(&__ext->oe_link), \
oes_strings[__ext->oe_state], ext_flags(__ext, __buf), \
__ext->oe_obj, \
__ext->oe_dlmlock, __ext->oe_mppr, __ext->oe_owner, \
/* ----- part 4 ----- */ \
## __VA_ARGS__); \
- if (lvl == D_ERROR && __ext->oe_dlmlock != NULL) \
+ if (mask == D_ERROR && __ext->oe_dlmlock != NULL) \
LDLM_ERROR(__ext->oe_dlmlock, "extent: %p", __ext); \
else \
LDLM_DEBUG(__ext->oe_dlmlock, "extent: %p", __ext); \
} while (0)
+#define OSC_EXTENT_DUMP(mask, ext, fmt, ...) \
+ OSC_EXTENT_DUMP_WITH_LOC(__FILE__, __func__, __LINE__, \
+ mask, ext, fmt, ## __VA_ARGS__)
+
#undef EASSERTF
#define EASSERTF(expr, ext, fmt, args...) do { \
if (!(expr)) { \
GOTO(out, rc = 60);
if (ext->oe_fsync_wait && !ext->oe_urgent && !ext->oe_hp)
GOTO(out, rc = 65);
+ /* fallthrough */
default:
if (atomic_read(&ext->oe_users) > 0)
GOTO(out, rc = 70);
if (ext->oe_sync && ext->oe_grants > 0)
GOTO(out, rc = 90);
- if (ext->oe_dlmlock != NULL && !ldlm_is_failed(ext->oe_dlmlock)) {
+ if (ext->oe_dlmlock != NULL &&
+ ext->oe_dlmlock->l_resource->lr_type == LDLM_EXTENT &&
+ !ldlm_is_failed(ext->oe_dlmlock)) {
struct ldlm_extent *extent;
extent = &ext->oe_dlmlock->l_policy_data.l_extent;
out:
if (rc != 0)
- OSC_EXTENT_DUMP(D_ERROR, ext,
- "%s:%d sanity check %p failed with rc = %d\n",
- func, line, ext, rc);
+ OSC_EXTENT_DUMP_WITH_LOC(__FILE__, func, line, D_ERROR, ext,
+ "sanity check %p failed: rc = %d\n",
+ ext, rc);
return rc;
}
* osc_cache_truncate_start(). */
osc_extent_state_set(ext, OES_TRUNC);
ext->oe_trunc_pending = 0;
+ osc_object_unlock(obj);
} else {
int grant = 0;
grant += cli->cl_grant_extent_tax;
if (osc_extent_merge(env, ext, next_extent(ext)) == 0)
grant += cli->cl_grant_extent_tax;
- if (grant > 0)
- osc_unreserve_grant(cli, 0, grant);
if (ext->oe_urgent)
list_move_tail(&ext->oe_link,
list_move_tail(&ext->oe_link,
&obj->oo_full_exts);
}
+ osc_object_unlock(obj);
+ if (grant > 0)
+ osc_unreserve_grant(cli, 0, grant);
}
- osc_object_unlock(obj);
osc_io_unplug_async(env, cli, obj);
}
RETURN(rc);
}
-static inline int overlapped(struct osc_extent *ex1, struct osc_extent *ex2)
+static inline bool
+overlapped(const struct osc_extent *ex1, const struct osc_extent *ex2)
{
return !(ex1->oe_end < ex2->oe_start || ex2->oe_end < ex1->oe_start);
}
pgoff_t ext_chk_end = ext->oe_end >> ppc_bits;
LASSERT(sanity_check_nolock(ext) == 0);
- if (chunk > ext_chk_end + 1)
+ if (chunk > ext_chk_end + 1 || chunk < ext_chk_start)
break;
/* if covering by different locks, no chance to match */
/* pull ext's start back to cover cur */
ext->oe_start = cur->oe_start;
ext->oe_grants += chunksize;
+ LASSERT(*grants >= chunksize);
*grants -= chunksize;
found = osc_extent_hold(ext);
/* rear merge */
ext->oe_end = cur->oe_end;
ext->oe_grants += chunksize;
+ LASSERT(*grants >= chunksize);
*grants -= chunksize;
/* try to merge with the next one because we just fill
/* create a new extent */
EASSERT(osc_extent_is_overlapped(obj, cur) == 0, cur);
cur->oe_grants = chunksize + cli->cl_grant_extent_tax;
+ LASSERT(*grants >= cur->oe_grants);
*grants -= cur->oe_grants;
- LASSERT(*grants >= 0);
cur->oe_state = OES_CACHE;
found = osc_extent_hold(cur);
out:
osc_extent_put(env, cur);
- LASSERT(*grants >= 0);
return found;
}
enum osc_extent_state state)
{
struct osc_object *obj = ext->oe_obj;
- struct l_wait_info lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(600), NULL,
- LWI_ON_SIGNAL_NOOP, NULL);
int rc = 0;
ENTRY;
osc_extent_release(env, ext);
/* wait for the extent until its state becomes @state */
- rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state), &lwi);
- if (rc == -ETIMEDOUT) {
+ rc = wait_event_idle_timeout(ext->oe_waitq, extent_wait_cb(ext, state),
+ cfs_time_seconds(600));
+ if (rc == 0) {
OSC_EXTENT_DUMP(D_ERROR, ext,
"%s: wait ext to %u timedout, recovery in progress?\n",
cli_name(osc_cli(obj)), state);
- lwi = LWI_INTR(NULL, NULL);
- rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state),
- &lwi);
+ wait_event_idle(ext->oe_waitq, extent_wait_cb(ext, state));
}
- if (rc == 0 && ext->oe_rc < 0)
+ if (ext->oe_rc < 0)
rc = ext->oe_rc;
+ else
+ rc = 0;
RETURN(rc);
}
struct client_obd *cli = osc_cli(obj);
struct osc_async_page *oap;
struct osc_async_page *tmp;
+ struct pagevec *pvec;
int pages_in_chunk = 0;
int ppc_bits = cli->cl_chunkbits -
PAGE_SHIFT;
* We can't use that env from osc_cache_truncate_start() because
* it's from lov_io_sub and not fully initialized. */
env = cl_env_get(&refcheck);
- io = &osc_env_info(env)->oti_io;
+ if (IS_ERR(env))
+ RETURN(PTR_ERR(env));
+
+ io = osc_env_thread_io(env);
io->ci_obj = cl_object_top(osc2cl(obj));
io->ci_ignore_layout = 1;
+ pvec = &osc_env_info(env)->oti_pagevec;
+ ll_pagevec_init(pvec, 0);
rc = cl_io_init(env, io, CIT_MISC, io->ci_obj);
if (rc < 0)
GOTO(out, rc);
}
lu_ref_del(&page->cp_reference, "truncate", current);
- cl_page_put(env, page);
+ cl_pagevec_put(env, page, pvec);
--ext->oe_nr_pages;
++nr_pages;
}
+ pagevec_release(pvec);
+
EASSERTF(ergo(ext->oe_start >= trunc_index + !!partial,
ext->oe_nr_pages == 0),
ext, "trunc_index %lu, partial %d\n", trunc_index, partial);
ext->oe_end = end_index;
ext->oe_grants += chunksize;
+ LASSERT(*grants >= chunksize);
*grants -= chunksize;
- LASSERT(*grants >= 0);
EASSERTF(osc_extent_is_overlapped(obj, ext) == 0, ext,
"overlapped after expanding for %lu.\n", index);
EXIT;
RETURN(rc);
}
-static void osc_extent_tree_dump0(int level, struct osc_object *obj,
+static void osc_extent_tree_dump0(int mask, struct osc_object *obj,
const char *func, int line)
{
struct osc_extent *ext;
int cnt;
- CDEBUG(level, "Dump object %p extents at %s:%d, mppr: %u.\n",
+ if (!cfs_cdebug_show(mask, DEBUG_SUBSYSTEM))
+ return;
+
+ CDEBUG(mask, "Dump object %p extents at %s:%d, mppr: %u.\n",
obj, func, line, osc_cli(obj)->cl_max_pages_per_rpc);
/* osc_object_lock(obj); */
cnt = 1;
for (ext = first_extent(obj); ext != NULL; ext = next_extent(ext))
- OSC_EXTENT_DUMP(level, ext, "in tree %d.\n", cnt++);
+ OSC_EXTENT_DUMP(mask, ext, "in tree %d.\n", cnt++);
cnt = 1;
list_for_each_entry(ext, &obj->oo_hp_exts, oe_link)
- OSC_EXTENT_DUMP(level, ext, "hp %d.\n", cnt++);
+ OSC_EXTENT_DUMP(mask, ext, "hp %d.\n", cnt++);
cnt = 1;
list_for_each_entry(ext, &obj->oo_urgent_exts, oe_link)
- OSC_EXTENT_DUMP(level, ext, "urgent %d.\n", cnt++);
+ OSC_EXTENT_DUMP(mask, ext, "urgent %d.\n", cnt++);
cnt = 1;
list_for_each_entry(ext, &obj->oo_reading_exts, oe_link)
- OSC_EXTENT_DUMP(level, ext, "reading %d.\n", cnt++);
+ OSC_EXTENT_DUMP(mask, ext, "reading %d.\n", cnt++);
/* osc_object_unlock(obj); */
}
ENTRY;
result = cl_page_make_ready(env, page, CRT_WRITE);
if (result == 0)
- opg->ops_submit_time = cfs_time_current();
+ opg->ops_submit_time = ktime_get();
RETURN(result);
}
pgoff_t index = osc_index(oap2osc(oap));
struct cl_object *obj;
struct cl_attr *attr = &osc_env_info(env)->oti_attr;
-
int result;
loff_t kms;
return 0;
else if (cl_offset(obj, index + 1) > kms)
/* catch sub-page write at end of file */
- return kms % PAGE_SIZE;
+ return kms & ~PAGE_MASK;
else
return PAGE_SIZE;
}
/* Clear opg->ops_transfer_pinned before VM lock is released. */
opg->ops_transfer_pinned = 0;
- opg->ops_submit_time = 0;
+ opg->ops_submit_time = ktime_set(0, 0);
srvlock = oap->oap_brw_flags & OBD_BRW_SRVLOCK;
/* statistic */
RETURN(0);
}
-#define OSC_DUMP_GRANT(lvl, cli, fmt, args...) do { \
+#define OSC_DUMP_GRANT(mask, cli, fmt, args...) do { \
struct client_obd *__tmp = (cli); \
- CDEBUG(lvl, "%s: grant { dirty: %ld/%ld dirty_pages: %ld/%lu " \
+ CDEBUG(mask, "%s: grant { dirty: %ld/%ld dirty_pages: %ld/%lu " \
"dropped: %ld avail: %ld, dirty_grant: %ld, " \
"reserved: %ld, flight: %d } lru {in list: %ld, " \
"left: %ld, waiters: %d }" fmt "\n", \
{
assert_spin_locked(&cli->cl_loi_list_lock);
LASSERT(!(pga->flag & OBD_BRW_FROM_GRANT));
- atomic_long_inc(&obd_dirty_pages);
cli->cl_dirty_pages++;
pga->flag |= OBD_BRW_FROM_GRANT;
CDEBUG(D_CACHE, "using %lu grant credits for brw %p page %p\n",
pga->flag &= ~OBD_BRW_FROM_GRANT;
atomic_long_dec(&obd_dirty_pages);
cli->cl_dirty_pages--;
- if (pga->flag & OBD_BRW_NOCACHE) {
- pga->flag &= ~OBD_BRW_NOCACHE;
- atomic_long_dec(&obd_dirty_transit_pages);
- cli->cl_dirty_transit--;
- }
EXIT;
}
}
}
-static void osc_unreserve_grant(struct client_obd *cli,
- unsigned int reserved, unsigned int unused)
+static void osc_unreserve_grant_nolock(struct client_obd *cli,
+ unsigned int reserved,
+ unsigned int unused)
{
- spin_lock(&cli->cl_loi_list_lock);
__osc_unreserve_grant(cli, reserved, unused);
if (unused > 0)
osc_wake_cache_waiters(cli);
+}
+
+static void osc_unreserve_grant(struct client_obd *cli,
+ unsigned int reserved, unsigned int unused)
+{
+ spin_lock(&cli->cl_loi_list_lock);
+ osc_unreserve_grant_nolock(cli, reserved, unused);
spin_unlock(&cli->cl_loi_list_lock);
}
*/
static int osc_enter_cache_try(struct client_obd *cli,
struct osc_async_page *oap,
- int bytes, int transient)
+ int bytes)
{
int rc;
if (rc < 0)
return 0;
- if (cli->cl_dirty_pages < cli->cl_dirty_max_pages &&
- 1 + atomic_long_read(&obd_dirty_pages) <= obd_max_dirty_pages) {
- osc_consume_write_grant(cli, &oap->oap_brw_page);
- if (transient) {
- cli->cl_dirty_transit++;
- atomic_long_inc(&obd_dirty_transit_pages);
- oap->oap_brw_flags |= OBD_BRW_NOCACHE;
- }
- rc = 1;
- } else {
- __osc_unreserve_grant(cli, bytes, bytes);
- rc = 0;
+ if (cli->cl_dirty_pages < cli->cl_dirty_max_pages) {
+ if (atomic_long_add_return(1, &obd_dirty_pages) <=
+ obd_max_dirty_pages) {
+ osc_consume_write_grant(cli, &oap->oap_brw_page);
+ rc = 1;
+ goto out;
+ } else
+ atomic_long_dec(&obd_dirty_pages);
}
+ __osc_unreserve_grant(cli, bytes, bytes);
+
+out:
return rc;
}
struct osc_object *osc = oap->oap_obj;
struct lov_oinfo *loi = osc->oo_oinfo;
struct osc_cache_waiter ocw;
- struct l_wait_info lwi;
int rc = -EDQUOT;
ENTRY;
- lwi = LWI_TIMEOUT_INTR(cfs_time_seconds(AT_OFF ? obd_timeout : at_max),
- NULL, LWI_ON_SIGNAL_NOOP, NULL);
-
OSC_DUMP_GRANT(D_CACHE, cli, "need:%d\n", bytes);
spin_lock(&cli->cl_loi_list_lock);
}
/* Hopefully normal case - cache space and write credits available */
- if (osc_enter_cache_try(cli, oap, bytes, 0)) {
+ if (list_empty(&cli->cl_cache_waiters) &&
+ osc_enter_cache_try(cli, oap, bytes)) {
OSC_DUMP_GRANT(D_CACHE, cli, "granted from cache\n");
GOTO(out, rc = 0);
}
CDEBUG(D_CACHE, "%s: sleeping for cache space @ %p for %p\n",
cli_name(cli), &ocw, oap);
- rc = l_wait_event(ocw.ocw_waitq, ocw_granted(cli, &ocw), &lwi);
+ rc = wait_event_idle_timeout(ocw.ocw_waitq,
+ ocw_granted(cli, &ocw),
+ cfs_time_seconds(AT_OFF ?
+ obd_timeout :
+ at_max));
spin_lock(&cli->cl_loi_list_lock);
- if (rc < 0) {
+ if (rc <= 0) {
/* l_wait_event is interrupted by signal or timed out */
list_del_init(&ocw.ocw_entry);
+ if (rc == 0)
+ rc = -ETIMEDOUT;
break;
}
LASSERT(list_empty(&ocw.ocw_entry));
if (rc != -EDQUOT)
break;
- if (osc_enter_cache_try(cli, oap, bytes, 0)) {
+ if (osc_enter_cache_try(cli, oap, bytes)) {
rc = 0;
break;
}
ENTRY;
list_for_each_safe(l, tmp, &cli->cl_cache_waiters) {
ocw = list_entry(l, struct osc_cache_waiter, ocw_entry);
- list_del_init(&ocw->ocw_entry);
ocw->ocw_rc = -EDQUOT;
- /* we can't dirty more */
- if ((cli->cl_dirty_pages >= cli->cl_dirty_max_pages) ||
- (1 + atomic_long_read(&obd_dirty_pages) >
- obd_max_dirty_pages)) {
- CDEBUG(D_CACHE, "no dirty room: dirty: %ld "
- "osc max %ld, sys max %ld\n",
- cli->cl_dirty_pages, cli->cl_dirty_max_pages,
- obd_max_dirty_pages);
- goto wakeup;
- }
- if (osc_enter_cache_try(cli, ocw->ocw_oap, ocw->ocw_grant, 0))
+ if (osc_enter_cache_try(cli, ocw->ocw_oap, ocw->ocw_grant))
ocw->ocw_rc = 0;
-wakeup:
- CDEBUG(D_CACHE, "wake up %p for oap %p, avail grant %ld, %d\n",
- ocw, ocw->ocw_oap, cli->cl_avail_grant, ocw->ocw_rc);
- wake_up(&ocw->ocw_waitq);
+ if (ocw->ocw_rc == 0 ||
+ !(cli->cl_dirty_pages > 0 || cli->cl_w_in_flight > 0)) {
+ list_del_init(&ocw->ocw_entry);
+ CDEBUG(D_CACHE, "wake up %p for oap %p, avail grant "
+ "%ld, %d\n", ocw, ocw->ocw_oap,
+ cli->cl_avail_grant, ocw->ocw_rc);
+
+ wake_up(&ocw->ocw_waitq);
+ }
}
EXIT;
}
+EXPORT_SYMBOL(osc_wake_cache_waiters);
static int osc_max_rpc_in_flight(struct client_obd *cli, struct osc_object *osc)
{
return (ext->oe_end >> ppc_bits) - (ext->oe_start >> ppc_bits) + 1;
}
+static inline bool
+can_merge(const struct osc_extent *ext, const struct osc_extent *in_rpc)
+{
+ if (ext->oe_no_merge || in_rpc->oe_no_merge)
+ return false;
+
+ if (ext->oe_srvlock != in_rpc->oe_srvlock)
+ return false;
+
+ if (ext->oe_ndelay != in_rpc->oe_ndelay)
+ return false;
+
+ if (!ext->oe_grants != !in_rpc->oe_grants)
+ return false;
+
+ if (ext->oe_dio != in_rpc->oe_dio)
+ return false;
+
+ /* It's possible to have overlap on DIO */
+ if (in_rpc->oe_dio && overlapped(ext, in_rpc))
+ return false;
+
+ return true;
+}
+
/**
* Try to add extent to one RPC. We need to think about the following things:
* - # of pages must not be over max_pages_per_rpc
{
struct osc_extent *tmp;
unsigned int chunk_count;
- struct osc_async_page *oap = list_first_entry(&ext->oe_pages,
- struct osc_async_page,
- oap_pending_item);
ENTRY;
EASSERT((ext->oe_state == OES_CACHE || ext->oe_state == OES_LOCK_DONE),
RETURN(0);
list_for_each_entry(tmp, data->erd_rpc_list, oe_link) {
- struct osc_async_page *oap2;
- oap2 = list_first_entry(&tmp->oe_pages, struct osc_async_page,
- oap_pending_item);
EASSERT(tmp->oe_owner == current, tmp);
-#if 0
- if (overlapped(tmp, ext)) {
- OSC_EXTENT_DUMP(D_ERROR, tmp, "overlapped %p.\n", ext);
- EASSERT(0, ext);
- }
-#endif
- if (oap2cl_page(oap)->cp_type != oap2cl_page(oap2)->cp_type) {
- CDEBUG(D_CACHE, "Do not permit different types of IO "
- "in one RPC\n");
- RETURN(0);
- }
- if (tmp->oe_srvlock != ext->oe_srvlock ||
- !tmp->oe_grants != !ext->oe_grants ||
- tmp->oe_no_merge || ext->oe_no_merge)
+ if (!can_merge(ext, tmp))
RETURN(0);
-
- /* remove break for strict check */
- break;
}
data->erd_max_extents--;
RETURN(1);
}
-static inline unsigned osc_max_write_chunks(const struct client_obd *cli)
-{
- /*
- * LU-8135:
- *
- * The maximum size of a single transaction is about 64MB in ZFS.
- * #define DMU_MAX_ACCESS (64 * 1024 * 1024)
- *
- * Since ZFS is a copy-on-write file system, a single dirty page in
- * a chunk will result in the rewrite of the whole chunk, therefore
- * an RPC shouldn't be allowed to contain too many chunks otherwise
- * it will make transaction size much bigger than 64MB, especially
- * with big block size for ZFS.
- *
- * This piece of code is to make sure that OSC won't send write RPCs
- * with too many chunks. The maximum chunk size that an RPC can cover
- * is set to PTLRPC_MAX_BRW_SIZE, which is defined to 16MB. Ideally
- * OST should tell the client what the biggest transaction size is,
- * but it's good enough for now.
- *
- * This limitation doesn't apply to ldiskfs, which allows as many
- * chunks in one RPC as we want. However, it won't have any benefits
- * to have too many discontiguous pages in one RPC.
- *
- * An osc_extent won't cover over a RPC size, so the chunks in an
- * osc_extent won't bigger than PTLRPC_MAX_BRW_SIZE >> chunkbits.
- */
- return PTLRPC_MAX_BRW_SIZE >> cli->cl_chunkbits;
-}
-
/**
* In order to prevent multiple ptlrpcd from breaking contiguous extents,
* get_write_extent() takes all appropriate extents in atomic.
struct osc_object *osc)
__must_hold(osc)
{
- struct list_head rpclist = LIST_HEAD_INIT(rpclist);
+ LIST_HEAD(rpclist);
struct osc_extent *ext;
struct osc_extent *tmp;
struct osc_extent *first = NULL;
{
struct osc_extent *ext;
struct osc_extent *next;
- struct list_head rpclist = LIST_HEAD_INIT(rpclist);
+ LIST_HEAD(rpclist);
struct extent_rpc_data data = {
.erd_rpc_list = &rpclist,
.erd_page_count = 0,
}
}
-static int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli,
- struct osc_object *osc, int async)
+int osc_io_unplug0(const struct lu_env *env, struct client_obd *cli,
+ struct osc_object *osc, int async)
{
int rc = 0;
}
return rc;
}
-
-static int osc_io_unplug_async(const struct lu_env *env,
- struct client_obd *cli, struct osc_object *osc)
-{
- return osc_io_unplug0(env, cli, osc, 1);
-}
-
-void osc_io_unplug(const struct lu_env *env, struct client_obd *cli,
- struct osc_object *osc)
-{
- (void)osc_io_unplug0(env, cli, osc, 0);
-}
+EXPORT_SYMBOL(osc_io_unplug0);
int osc_prep_async_page(struct osc_object *osc, struct osc_page *ops,
struct page *page, loff_t offset)
oap->oap_obj_off = offset;
LASSERT(!(offset & ~PAGE_MASK));
- if (cfs_capable(CFS_CAP_SYS_RESOURCE))
- oap->oap_brw_flags = OBD_BRW_NOQUOTA;
-
INIT_LIST_HEAD(&oap->oap_pending_item);
INIT_LIST_HEAD(&oap->oap_rpc_item);
oap, page, oap->oap_obj_off);
RETURN(0);
}
+EXPORT_SYMBOL(osc_prep_async_page);
int osc_queue_async_io(const struct lu_env *env, struct cl_io *io,
- struct osc_page *ops)
+ struct osc_page *ops, cl_commit_cbt cb)
{
struct osc_io *oio = osc_env_io(env);
struct osc_extent *ext = NULL;
struct osc_async_page *oap = &ops->ops_oap;
struct client_obd *cli = oap->oap_cli;
struct osc_object *osc = oap->oap_obj;
+ struct pagevec *pvec = &osc_env_info(env)->oti_pagevec;
pgoff_t index;
unsigned int tmp;
unsigned int grants = 0;
/* Set the OBD_BRW_SRVLOCK before the page is queued. */
brw_flags |= ops->ops_srvlock ? OBD_BRW_SRVLOCK : 0;
- if (cfs_capable(CFS_CAP_SYS_RESOURCE)) {
+ if (oio->oi_cap_sys_resource) {
brw_flags |= OBD_BRW_NOQUOTA;
cmd |= OBD_BRW_NOQUOTA;
}
qid[USRQUOTA] = attr->cat_uid;
qid[GRPQUOTA] = attr->cat_gid;
+ qid[PRJQUOTA] = attr->cat_projid;
if (rc == 0 && osc_quota_chkdq(cli, qid) == NO_QUOTA)
rc = -EDQUOT;
if (rc)
/* it doesn't need any grant to dirty this page */
spin_lock(&cli->cl_loi_list_lock);
- rc = osc_enter_cache_try(cli, oap, grants, 0);
- spin_unlock(&cli->cl_loi_list_lock);
+ rc = osc_enter_cache_try(cli, oap, grants);
if (rc == 0) { /* try failed */
grants = 0;
need_release = 1;
} else {
OSC_EXTENT_DUMP(D_CACHE, ext,
"expanded for %lu.\n", index);
- osc_unreserve_grant(cli, grants, tmp);
+ osc_unreserve_grant_nolock(cli, grants, tmp);
grants = 0;
}
}
+ spin_unlock(&cli->cl_loi_list_lock);
rc = 0;
} else if (ext != NULL) {
/* index is located outside of active extent */
rc = 0;
if (grants == 0) {
- /* we haven't allocated grant for this page. */
+ /* We haven't allocated grant for this page, and we
+ * must not hold a page lock while we do enter_cache,
+ * so we must mark dirty & unlock any pages in the
+ * write commit pagevec. */
+ if (pagevec_count(pvec)) {
+ cb(env, io, pvec);
+ pagevec_reinit(pvec);
+ }
rc = osc_enter_cache(env, cli, oap, tmp);
if (rc == 0)
grants = tmp;
++ext->oe_nr_pages;
list_add_tail(&oap->oap_pending_item, &ext->oe_pages);
osc_object_unlock(osc);
+
+ if (!ext->oe_layout_version)
+ ext->oe_layout_version = io->ci_layout_version;
}
+
RETURN(rc);
}
RETURN(rc);
}
-int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
- struct list_head *list, int cmd, int brw_flags)
+int osc_queue_sync_pages(const struct lu_env *env, const struct cl_io *io,
+ struct osc_object *obj, struct list_head *list,
+ int brw_flags)
{
struct client_obd *cli = osc_cli(obj);
struct osc_extent *ext;
RETURN(-ENOMEM);
}
- ext->oe_rw = !!(cmd & OBD_BRW_READ);
+ ext->oe_rw = !!(brw_flags & OBD_BRW_READ);
ext->oe_sync = 1;
ext->oe_no_merge = !can_merge;
ext->oe_urgent = 1;
ext->oe_end = ext->oe_max_end = end;
ext->oe_obj = obj;
ext->oe_srvlock = !!(brw_flags & OBD_BRW_SRVLOCK);
+ ext->oe_ndelay = !!(brw_flags & OBD_BRW_NDELAY);
+ ext->oe_dio = !!(brw_flags & OBD_BRW_NOCACHE);
ext->oe_nr_pages = page_count;
ext->oe_mppr = mppr;
list_splice_init(list, &ext->oe_pages);
+ ext->oe_layout_version = io->ci_layout_version;
osc_object_lock(obj);
/* Reuse the initial refcount for RPC, don't drop it */
osc_extent_state_set(ext, OES_LOCK_DONE);
- if (cmd & OBD_BRW_WRITE) {
+ if (!ext->oe_rw) { /* write */
list_add_tail(&ext->oe_link, &obj->oo_urgent_exts);
osc_update_pending(obj, OBD_BRW_WRITE, page_count);
} else {
struct osc_extent *ext;
struct osc_extent *waiting = NULL;
pgoff_t index;
- struct list_head list = LIST_HEAD_INIT(list);
+ LIST_HEAD(list);
int result = 0;
bool partial;
ENTRY;
}
RETURN(result);
}
+EXPORT_SYMBOL(osc_cache_truncate_start);
/**
* Called after osc_io_setattr_end to add oio->oi_trunc back to cache.
OSC_IO_DEBUG(obj, "sync file range.\n");
RETURN(result);
}
+EXPORT_SYMBOL(osc_cache_wait_range);
/**
* Called to write out a range of osc object.
pgoff_t start, pgoff_t end, int hp, int discard)
{
struct osc_extent *ext;
- struct list_head discard_list = LIST_HEAD_INIT(discard_list);
+ LIST_HEAD(discard_list);
bool unplug = false;
int result = 0;
ENTRY;
list_move_tail(&ext->oe_link, list);
unplug = true;
} else {
+ struct client_obd *cli = osc_cli(obj);
+ int pcc_bits = cli->cl_chunkbits - PAGE_SHIFT;
+ pgoff_t align_by = (1 << pcc_bits);
+ pgoff_t a_start = round_down(start, align_by);
+ pgoff_t a_end = round_up(end, align_by);
+
+ /* overflow case */
+ if (end && !a_end)
+ a_end = CL_PAGE_EOF;
/* the only discarder is lock cancelling, so
- * [start, end] must contain this extent */
- EASSERT(ext->oe_start >= start &&
- ext->oe_max_end <= end, ext);
+ * [start, end], aligned by chunk size, must
+ * contain this extent */
+ LASSERTF(ext->oe_start >= a_start &&
+ ext->oe_end <= a_end,
+ "ext [%lu, %lu] reg [%lu, %lu] "
+ "orig [%lu %lu] align %lu bits "
+ "%d\n", ext->oe_start, ext->oe_end,
+ a_start, a_end, start, end,
+ align_by, pcc_bits);
osc_extent_state_set(ext, OES_LOCKING);
ext->oe_owner = current;
list_move_tail(&ext->oe_link,
OSC_IO_DEBUG(obj, "pageout [%lu, %lu], %d.\n", start, end, result);
RETURN(result);
}
+EXPORT_SYMBOL(osc_cache_writeback_range);
/**
* Returns a list of pages by a given [start, end] of \a obj.
osc_page_gang_cbt cb, void *cbdata)
{
struct osc_page *ops;
+ struct pagevec *pagevec;
void **pvec;
pgoff_t idx;
unsigned int nr;
idx = start;
pvec = osc_env_info(env)->oti_pvec;
+ pagevec = &osc_env_info(env)->oti_pagevec;
+ ll_pagevec_init(pagevec, 0);
spin_lock(&osc->oo_tree_lock);
while ((nr = radix_tree_gang_lookup(&osc->oo_tree, pvec,
idx, OTI_PVEC_SIZE)) > 0) {
page = ops->ops_cl.cpl_page;
lu_ref_del(&page->cp_reference, "gang_lookup", current);
- cl_page_put(env, page);
+ cl_pagevec_put(env, page, pagevec);
}
+ pagevec_release(pagevec);
+
if (nr < OTI_PVEC_SIZE || end_of_region)
break;
spin_unlock(&osc->oo_tree_lock);
RETURN(res);
}
+EXPORT_SYMBOL(osc_page_gang_lookup);
/**
* Check if page @page is covered by an extra lock or discard it.
return CLP_GANG_OKAY;
}
-static int discard_cb(const struct lu_env *env, struct cl_io *io,
- struct osc_page *ops, void *cbdata)
+int osc_discard_cb(const struct lu_env *env, struct cl_io *io,
+ struct osc_page *ops, void *cbdata)
{
struct osc_thread_info *info = osc_env_info(env);
struct cl_page *page = ops->ops_cl.cpl_page;
return CLP_GANG_OKAY;
}
+EXPORT_SYMBOL(osc_discard_cb);
/**
* Discard pages protected by the given lock. This function traverses radix
* behind this being that lock cancellation cannot be delayed indefinitely).
*/
int osc_lock_discard_pages(const struct lu_env *env, struct osc_object *osc,
- pgoff_t start, pgoff_t end, enum cl_lock_mode mode)
+ pgoff_t start, pgoff_t end, bool discard)
{
struct osc_thread_info *info = osc_env_info(env);
- struct cl_io *io = &info->oti_io;
+ struct cl_io *io = osc_env_thread_io(env);
osc_page_gang_cbt cb;
int res;
int result;
if (result != 0)
GOTO(out, result);
- cb = mode == CLM_READ ? check_and_discard_cb : discard_cb;
+ cb = discard ? osc_discard_cb : check_and_discard_cb;
info->oti_fn_index = info->oti_next_index = start;
do {
res = osc_page_gang_lookup(env, io, osc,
git://git.whamcloud.com / fs / lustre-release.git / blobdiff