X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fosc%2Fosc_request.c;h=fcac713242db3ed93320f91d141728228de084a5;hp=a5b1e2ad0c83022891a659aca48f1c8c8d0cbcb7;hb=HEAD;hpb=77d9f4e05a5c366ad0f7c2e97a338c6958676f73 diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c index a5b1e2a..e1ebbf5 100644 --- a/lustre/osc/osc_request.c +++ b/lustre/osc/osc_request.c @@ -27,26 +27,28 @@ */ /* * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. */ #define DEBUG_SUBSYSTEM S_OSC #include +#include +#include #include -#include #include #include #include #include +#include #include #include +#include #include #include #include -#include #include "osc_internal.h" +#include atomic_t osc_pool_req_count; unsigned int osc_reqpool_maxreqcount; @@ -84,7 +86,7 @@ static void osc_release_ppga(struct brw_page **ppga, size_t count); static int brw_interpret(const struct lu_env *env, struct ptlrpc_request *req, void *data, int rc); -void osc_pack_req_body(struct ptlrpc_request *req, struct obdo *oa) +static void osc_pack_req_body(struct ptlrpc_request *req, struct obdo *oa) { struct ost_body *body; @@ -231,16 +233,12 @@ int osc_setattr_async(struct obd_export *exp, struct obdo *oa, } else { req->rq_interpret_reply = osc_setattr_interpret; - CLASSERT(sizeof(*sa) <= sizeof(req->rq_async_args)); - sa = ptlrpc_req_async_args(req); + sa = ptlrpc_req_async_args(sa, req); sa->sa_oa = oa; sa->sa_upcall = upcall; sa->sa_cookie = cookie; - if (rqset == PTLRPCD_SET) - ptlrpcd_add_req(req); - else - ptlrpc_set_add_req(rqset, req); + ptlrpc_set_add_req(rqset, req); } RETURN(0); @@ -320,16 +318,12 @@ int osc_ladvise_base(struct obd_export *exp, struct obdo *oa, } req->rq_interpret_reply = osc_ladvise_interpret; - CLASSERT(sizeof(*la) <= sizeof(req->rq_async_args)); - la = ptlrpc_req_async_args(req); + la = ptlrpc_req_async_args(la, req); la->la_oa = oa; la->la_upcall = upcall; la->la_cookie = cookie; - if (rqset == PTLRPCD_SET) - ptlrpcd_add_req(req); - else - ptlrpc_set_add_req(rqset, req); + ptlrpc_set_add_req(rqset, req); RETURN(0); } @@ -417,8 +411,7 @@ int osc_punch_send(struct obd_export *exp, struct obdo *oa, ptlrpc_request_set_replen(req); req->rq_interpret_reply = osc_setattr_interpret; - CLASSERT(sizeof(*sa) <= sizeof(req->rq_async_args)); - sa = ptlrpc_req_async_args(req); + sa = ptlrpc_req_async_args(sa, req); sa->sa_oa = oa; sa->sa_upcall = upcall; sa->sa_cookie = cookie; @@ -429,6 +422,65 @@ int osc_punch_send(struct obd_export *exp, struct obdo *oa, } EXPORT_SYMBOL(osc_punch_send); +/** + * osc_fallocate_base() - Handles fallocate request. + * + * @exp: Export structure + * @oa: Attributes passed to OSS from client (obdo structure) + * @upcall: Primary & supplementary group information + * @cookie: Exclusive identifier + * @rqset: Request list. + * @mode: Operation done on given range. + * + * osc_fallocate_base() - Handles fallocate requests only. Only block + * allocation or standard preallocate operation is supported currently. + * Other mode flags is not supported yet. ftruncate(2) or truncate(2) + * is supported via SETATTR request. + * + * Return: Non-zero on failure and O on success. + */ +int osc_fallocate_base(struct obd_export *exp, struct obdo *oa, + obd_enqueue_update_f upcall, void *cookie, int mode) +{ + struct ptlrpc_request *req; + struct osc_setattr_args *sa; + struct ost_body *body; + struct obd_import *imp = class_exp2cliimp(exp); + int rc; + ENTRY; + + oa->o_falloc_mode = mode; + req = ptlrpc_request_alloc(class_exp2cliimp(exp), + &RQF_OST_FALLOCATE); + if (req == NULL) + RETURN(-ENOMEM); + + rc = ptlrpc_request_pack(req, LUSTRE_OST_VERSION, OST_FALLOCATE); + if (rc != 0) { + ptlrpc_request_free(req); + RETURN(rc); + } + + body = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); + LASSERT(body); + + lustre_set_wire_obdo(&imp->imp_connect_data, &body->oa, oa); + + ptlrpc_request_set_replen(req); + + req->rq_interpret_reply = osc_setattr_interpret; + BUILD_BUG_ON(sizeof(*sa) > sizeof(req->rq_async_args)); + sa = ptlrpc_req_async_args(sa, req); + sa->sa_oa = oa; + sa->sa_upcall = upcall; + sa->sa_cookie = cookie; + + ptlrpcd_add_req(req); + + RETURN(0); +} +EXPORT_SYMBOL(osc_fallocate_base); + static int osc_sync_interpret(const struct lu_env *env, struct ptlrpc_request *req, void *args, int rc) { @@ -496,17 +548,13 @@ int osc_sync_base(struct osc_object *obj, struct obdo *oa, ptlrpc_request_set_replen(req); req->rq_interpret_reply = osc_sync_interpret; - CLASSERT(sizeof(*fa) <= sizeof(req->rq_async_args)); - fa = ptlrpc_req_async_args(req); + fa = ptlrpc_req_async_args(fa, req); fa->fa_obj = obj; fa->fa_oa = oa; fa->fa_upcall = upcall; fa->fa_cookie = cookie; - if (rqset == PTLRPCD_SET) - ptlrpcd_add_req(req); - else - ptlrpc_set_add_req(rqset, req); + ptlrpc_set_add_req(rqset, req); RETURN (0); } @@ -534,7 +582,7 @@ static int osc_resource_get_unused(struct obd_export *exp, struct obdo *oa, RETURN(0); ostid_build_res_name(&oa->o_oi, &res_id); - res = ldlm_resource_get(ns, NULL, &res_id, 0, 0); + res = ldlm_resource_get(ns, &res_id, 0, 0); if (IS_ERR(res)) RETURN(0); @@ -581,7 +629,7 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp, struct client_obd *cli = &exp->exp_obd->u.cli; struct ptlrpc_request *req; struct ost_body *body; - struct list_head cancels = LIST_HEAD_INIT(cancels); + LIST_HEAD(cancels); int rc, count; ENTRY; @@ -617,17 +665,16 @@ static int osc_destroy(const struct lu_env *env, struct obd_export *exp, req->rq_interpret_reply = osc_destroy_interpret; if (!osc_can_send_destroy(cli)) { - struct l_wait_info lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL); - /* * Wait until the number of on-going destroy RPCs drops * under max_rpc_in_flight */ - rc = l_wait_event_exclusive(cli->cl_destroy_waitq, - osc_can_send_destroy(cli), &lwi); + rc = l_wait_event_abortable_exclusive( + cli->cl_destroy_waitq, + osc_can_send_destroy(cli)); if (rc) { ptlrpc_req_finished(req); - RETURN(rc); + RETURN(-EINTR); } } @@ -645,25 +692,22 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, oa->o_valid |= bits; spin_lock(&cli->cl_loi_list_lock); - if (OCD_HAS_FLAG(&cli->cl_import->imp_connect_data, GRANT_PARAM)) + if (cli->cl_ocd_grant_param) oa->o_dirty = cli->cl_dirty_grant; else oa->o_dirty = cli->cl_dirty_pages << PAGE_SHIFT; - if (unlikely(cli->cl_dirty_pages - cli->cl_dirty_transit > - cli->cl_dirty_max_pages)) { - CERROR("dirty %lu - %lu > dirty_max %lu\n", - cli->cl_dirty_pages, cli->cl_dirty_transit, + if (unlikely(cli->cl_dirty_pages > cli->cl_dirty_max_pages)) { + CERROR("dirty %lu > dirty_max %lu\n", + cli->cl_dirty_pages, cli->cl_dirty_max_pages); oa->o_undirty = 0; - } else if (unlikely(atomic_long_read(&obd_dirty_pages) - - atomic_long_read(&obd_dirty_transit_pages) > + } else if (unlikely(atomic_long_read(&obd_dirty_pages) > (long)(obd_max_dirty_pages + 1))) { /* The atomic_read() allowing the atomic_inc() are * not covered by a lock thus they may safely race and trip * this CERROR() unless we add in a small fudge factor (+1). */ - CERROR("%s: dirty %ld - %ld > system dirty_max %ld\n", + CERROR("%s: dirty %ld > system dirty_max %ld\n", cli_name(cli), atomic_long_read(&obd_dirty_pages), - atomic_long_read(&obd_dirty_transit_pages), obd_max_dirty_pages); oa->o_undirty = 0; } else if (unlikely(cli->cl_dirty_max_pages - cli->cl_dirty_pages > @@ -679,28 +723,36 @@ static void osc_announce_cached(struct client_obd *cli, struct obdo *oa, nrpages *= cli->cl_max_rpcs_in_flight + 1; nrpages = max(nrpages, cli->cl_dirty_max_pages); undirty = nrpages << PAGE_SHIFT; - if (OCD_HAS_FLAG(&cli->cl_import->imp_connect_data, - GRANT_PARAM)) { + if (cli->cl_ocd_grant_param) { int nrextents; /* take extent tax into account when asking for more * grant space */ - nrextents = (nrpages + cli->cl_max_extent_pages - 1) / + nrextents = (nrpages + cli->cl_max_extent_pages - 1) / cli->cl_max_extent_pages; undirty += nrextents * cli->cl_grant_extent_tax; } /* Do not ask for more than OBD_MAX_GRANT - a margin for server * to add extent tax, etc. */ - oa->o_undirty = min(undirty, OBD_MAX_GRANT - - (PTLRPC_MAX_BRW_PAGES << PAGE_SHIFT)*4UL); + oa->o_undirty = min(undirty, OBD_MAX_GRANT & + ~(PTLRPC_MAX_BRW_SIZE * 4UL)); } oa->o_grant = cli->cl_avail_grant + cli->cl_reserved_grant; - oa->o_dropped = cli->cl_lost_grant; - cli->cl_lost_grant = 0; + /* o_dropped AKA o_misc is 32 bits, but cl_lost_grant is 64 bits */ + if (cli->cl_lost_grant > INT_MAX) { + CDEBUG(D_CACHE, + "%s: avoided o_dropped overflow: cl_lost_grant %lu\n", + cli_name(cli), cli->cl_lost_grant); + oa->o_dropped = INT_MAX; + } else { + oa->o_dropped = cli->cl_lost_grant; + } + cli->cl_lost_grant -= oa->o_dropped; spin_unlock(&cli->cl_loi_list_lock); - CDEBUG(D_CACHE, "dirty: %llu undirty: %u dropped %u grant: %llu\n", - oa->o_dirty, oa->o_undirty, oa->o_dropped, oa->o_grant); + CDEBUG(D_CACHE, "%s: dirty: %llu undirty: %u dropped %u grant: %llu" + " cl_lost_grant %lu\n", cli_name(cli), oa->o_dirty, + oa->o_undirty, oa->o_dropped, oa->o_grant, cli->cl_lost_grant); } void osc_update_next_shrink(struct client_obd *cli) @@ -711,6 +763,7 @@ void osc_update_next_shrink(struct client_obd *cli) CDEBUG(D_CACHE, "next time %lld to shrink grant\n", cli->cl_next_shrink_grant); } +EXPORT_SYMBOL(osc_update_next_shrink); static void __osc_update_grant(struct client_obd *cli, u64 grant) { @@ -755,6 +808,7 @@ static int osc_shrink_grant_interpret(const struct lu_env *env, osc_update_grant(cli, body); out: OBD_SLAB_FREE_PTR(aa->aa_oa, osc_obdo_kmem); + aa->aa_oa = NULL; return rc; } @@ -848,9 +902,11 @@ static int osc_should_shrink_grant(struct client_obd *client) if (client->cl_import == NULL) return 0; - if ((client->cl_import->imp_connect_data.ocd_connect_flags & - OBD_CONNECT_GRANT_SHRINK) == 0) - return 0; + if (!OCD_HAS_FLAG(&client->cl_import->imp_connect_data, GRANT_SHRINK) || + client->cl_import->imp_grant_shrink_disabled) { + osc_update_next_shrink(client); + return 0; + } if (ktime_get_seconds() >= next_shrink - 5) { /* Get the current RPC size directly, instead of going via: @@ -902,12 +958,13 @@ static void osc_grant_work_handler(struct work_struct *data) if (client_gtd.gtd_stopped == 1) return; - if (next_shrink > ktime_get_seconds()) - schedule_delayed_work(&work, msecs_to_jiffies( - (next_shrink - ktime_get_seconds()) * - MSEC_PER_SEC)); - else + if (next_shrink > ktime_get_seconds()) { + time64_t delay = next_shrink - ktime_get_seconds(); + + schedule_delayed_work(&work, cfs_time_seconds(delay)); + } else { schedule_work(&work.work); + } } void osc_schedule_grant_work(void) @@ -915,6 +972,7 @@ void osc_schedule_grant_work(void) cancel_delayed_work_sync(&work); schedule_work(&work.work); } +EXPORT_SYMBOL(osc_schedule_grant_work); /** * Start grant thread for returing grant to server for idle clients. @@ -968,12 +1026,19 @@ void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd) spin_lock(&cli->cl_loi_list_lock); cli->cl_avail_grant = ocd->ocd_grant; if (cli->cl_import->imp_state != LUSTRE_IMP_EVICTED) { - cli->cl_avail_grant -= cli->cl_reserved_grant; + unsigned long consumed = cli->cl_reserved_grant; + if (OCD_HAS_FLAG(ocd, GRANT_PARAM)) - cli->cl_avail_grant -= cli->cl_dirty_grant; + consumed += cli->cl_dirty_grant; else - cli->cl_avail_grant -= - cli->cl_dirty_pages << PAGE_SHIFT; + consumed += cli->cl_dirty_pages << PAGE_SHIFT; + if (cli->cl_avail_grant < consumed) { + CERROR("%s: granted %ld but already consumed %ld\n", + cli_name(cli), cli->cl_avail_grant, consumed); + cli->cl_avail_grant = 0; + } else { + cli->cl_avail_grant -= consumed; + } } if (OCD_HAS_FLAG(ocd, GRANT_PARAM)) { @@ -991,21 +1056,21 @@ void osc_init_grant(struct client_obd *cli, struct obd_connect_data *ocd) ~chunk_mask) & chunk_mask; /* determine maximum extent size, in #pages */ size = (u64)ocd->ocd_grant_max_blks << ocd->ocd_grant_blkbits; - cli->cl_max_extent_pages = size >> PAGE_SHIFT; - if (cli->cl_max_extent_pages == 0) - cli->cl_max_extent_pages = 1; + cli->cl_max_extent_pages = (size >> PAGE_SHIFT) ?: 1; + cli->cl_ocd_grant_param = 1; } else { + cli->cl_ocd_grant_param = 0; cli->cl_grant_extent_tax = 0; cli->cl_chunkbits = PAGE_SHIFT; cli->cl_max_extent_pages = DT_MAX_BRW_PAGES; } spin_unlock(&cli->cl_loi_list_lock); - CDEBUG(D_CACHE, "%s, setting cl_avail_grant: %ld cl_lost_grant: %ld." - "chunk bits: %d cl_max_extent_pages: %d\n", - cli_name(cli), - cli->cl_avail_grant, cli->cl_lost_grant, cli->cl_chunkbits, - cli->cl_max_extent_pages); + CDEBUG(D_CACHE, + "%s, setting cl_avail_grant: %ld cl_lost_grant: %ld. chunk bits: %d cl_max_extent_pages: %d\n", + cli_name(cli), + cli->cl_avail_grant, cli->cl_lost_grant, cli->cl_chunkbits, + cli->cl_max_extent_pages); if (OCD_HAS_FLAG(ocd, GRANT_SHRINK) && list_empty(&cli->cl_grant_chain)) osc_add_grant_list(cli); @@ -1026,27 +1091,27 @@ static void handle_short_read(int nob_read, size_t page_count, while (nob_read > 0) { LASSERT (page_count > 0); - if (pga[i]->count > nob_read) { + if (pga[i]->bp_count > nob_read) { /* EOF inside this page */ - ptr = kmap(pga[i]->pg) + - (pga[i]->off & ~PAGE_MASK); - memset(ptr + nob_read, 0, pga[i]->count - nob_read); - kunmap(pga[i]->pg); + ptr = kmap(pga[i]->bp_page) + + (pga[i]->bp_off & ~PAGE_MASK); + memset(ptr + nob_read, 0, pga[i]->bp_count - nob_read); + kunmap(pga[i]->bp_page); page_count--; i++; break; } - nob_read -= pga[i]->count; + nob_read -= pga[i]->bp_count; page_count--; i++; } /* zero remaining pages */ while (page_count-- > 0) { - ptr = kmap(pga[i]->pg) + (pga[i]->off & ~PAGE_MASK); - memset(ptr, 0, pga[i]->count); - kunmap(pga[i]->pg); + ptr = kmap(pga[i]->bp_page) + (pga[i]->bp_off & ~PAGE_MASK); + memset(ptr, 0, pga[i]->bp_count); + kunmap(pga[i]->bp_page); i++; } } @@ -1068,8 +1133,11 @@ static int check_write_rcs(struct ptlrpc_request *req, /* return error if any niobuf was in error */ for (i = 0; i < niocount; i++) { - if ((int)remote_rcs[i] < 0) - return(remote_rcs[i]); + if ((int)remote_rcs[i] < 0) { + CDEBUG(D_INFO, "rc[%d]: %d req %p\n", + i, remote_rcs[i], req); + return remote_rcs[i]; + } if (remote_rcs[i] != 0) { CDEBUG(D_INFO, "rc[%d] invalid (%d) req %p\n", @@ -1089,22 +1157,23 @@ static int check_write_rcs(struct ptlrpc_request *req, static inline int can_merge_pages(struct brw_page *p1, struct brw_page *p2) { - if (p1->flag != p2->flag) { + if (p1->bp_flag != p2->bp_flag) { unsigned mask = ~(OBD_BRW_FROM_GRANT | OBD_BRW_NOCACHE | OBD_BRW_SYNC | OBD_BRW_ASYNC | - OBD_BRW_NOQUOTA | OBD_BRW_SOFT_SYNC); + OBD_BRW_NOQUOTA | OBD_BRW_SOFT_SYNC | + OBD_BRW_SYS_RESOURCE); /* warn if we try to combine flags that we don't know to be * safe to combine */ - if (unlikely((p1->flag & mask) != (p2->flag & mask))) { + if (unlikely((p1->bp_flag & mask) != (p2->bp_flag & mask))) { CWARN("Saw flags 0x%x and 0x%x in the same brw, please " "report this at https://jira.whamcloud.com/\n", - p1->flag, p2->flag); + p1->bp_flag, p2->bp_flag); } return 0; } - return (p1->off + p1->count == p2->off); + return (p1->bp_off + p1->bp_count == p2->bp_off); } #if IS_ENABLED(CONFIG_CRC_T10DIF) @@ -1112,20 +1181,20 @@ static int osc_checksum_bulk_t10pi(const char *obd_name, int nob, size_t pg_count, struct brw_page **pga, int opc, obd_dif_csum_fn *fn, int sector_size, - u32 *check_sum) + u32 *check_sum, bool resend) { struct ahash_request *req; /* Used Adler as the default checksum type on top of DIF tags */ unsigned char cfs_alg = cksum_obd2cfs(OBD_CKSUM_T10_TOP); struct page *__page; unsigned char *buffer; - __u16 *guard_start; - unsigned int bufsize; + __be16 *guard_start; int guard_number; int used_number = 0; int used; u32 cksum; - int rc = 0; + unsigned int bufsize = sizeof(cksum); + int rc = 0, rc2; int i = 0; LASSERT(pg_count > 0); @@ -1143,64 +1212,81 @@ static int osc_checksum_bulk_t10pi(const char *obd_name, int nob, } buffer = kmap(__page); - guard_start = (__u16 *)buffer; + guard_start = (__be16 *)buffer; guard_number = PAGE_SIZE / sizeof(*guard_start); + CDEBUG(D_PAGE | (resend ? D_HA : 0), + "GRD tags per page=%u, resend=%u, bytes=%u, pages=%zu\n", + guard_number, resend, nob, pg_count); + while (nob > 0 && pg_count > 0) { - unsigned int count = pga[i]->count > nob ? nob : pga[i]->count; + int off = pga[i]->bp_off & ~PAGE_MASK; + unsigned int count = + pga[i]->bp_count > nob ? nob : pga[i]->bp_count; + int guards_needed = DIV_ROUND_UP(off + count, sector_size) - + (off / sector_size); + + if (guards_needed > guard_number - used_number) { + cfs_crypto_hash_update_page(req, __page, 0, + used_number * sizeof(*guard_start)); + used_number = 0; + } /* corrupt the data before we compute the checksum, to * simulate an OST->client data error */ if (unlikely(i == 0 && opc == OST_READ && - OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE))) { - unsigned char *ptr = kmap(pga[i]->pg); - int off = pga[i]->off & ~PAGE_MASK; + CFS_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE))) { + unsigned char *ptr = kmap(pga[i]->bp_page); memcpy(ptr + off, "bad1", min_t(typeof(nob), 4, nob)); - kunmap(pga[i]->pg); + kunmap(pga[i]->bp_page); } /* * The left guard number should be able to hold checksums of a * whole page */ - rc = obd_page_dif_generate_buffer(obd_name, pga[i]->pg, - pga[i]->off & ~PAGE_MASK, + rc = obd_page_dif_generate_buffer(obd_name, pga[i]->bp_page, + pga[i]->bp_off & ~PAGE_MASK, count, guard_start + used_number, guard_number - used_number, &used, sector_size, fn); + if (unlikely(resend)) + CDEBUG(D_PAGE | D_HA, + "pga[%u]: used %u off %llu+%u gen checksum: %*phN\n", + i, used, pga[i]->bp_off & ~PAGE_MASK, count, + (int)(used * sizeof(*guard_start)), + guard_start + used_number); if (rc) break; used_number += used; - if (used_number == guard_number) { - cfs_crypto_hash_update_page(req, __page, 0, - used_number * sizeof(*guard_start)); - used_number = 0; - } - - nob -= pga[i]->count; + nob -= pga[i]->bp_count; pg_count--; i++; } kunmap(__page); if (rc) - GOTO(out, rc); + GOTO(out_hash, rc); if (used_number != 0) cfs_crypto_hash_update_page(req, __page, 0, used_number * sizeof(*guard_start)); - bufsize = sizeof(cksum); - cfs_crypto_hash_final(req, (unsigned char *)&cksum, &bufsize); - - /* For sending we only compute the wrong checksum instead - * of corrupting the data so it is still correct on a redo */ - if (opc == OST_WRITE && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND)) - cksum++; +out_hash: + rc2 = cfs_crypto_hash_final(req, (unsigned char *)&cksum, &bufsize); + if (!rc) + rc = rc2; + if (rc == 0) { + /* For sending we only compute the wrong checksum instead + * of corrupting the data so it is still correct on a redo */ + if (opc == OST_WRITE && + CFS_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND)) + cksum++; - *check_sum = cksum; + *check_sum = cksum; + } out: __free_page(__page); return rc; @@ -1208,7 +1294,7 @@ out: #else /* !CONFIG_CRC_T10DIF */ #define obd_dif_ip_fn NULL #define obd_dif_crc_fn NULL -#define osc_checksum_bulk_t10pi(name, nob, pgc, pga, opc, fn, ssize, csum) \ +#define osc_checksum_bulk_t10pi(name, nob, pgc, pga, opc, fn, ssize, csum, re) \ -EOPNOTSUPP #endif /* CONFIG_CRC_T10DIF */ @@ -1232,25 +1318,26 @@ static int osc_checksum_bulk(int nob, size_t pg_count, } while (nob > 0 && pg_count > 0) { - unsigned int count = pga[i]->count > nob ? nob : pga[i]->count; + unsigned int count = + pga[i]->bp_count > nob ? nob : pga[i]->bp_count; /* corrupt the data before we compute the checksum, to * simulate an OST->client data error */ if (i == 0 && opc == OST_READ && - OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) { - unsigned char *ptr = kmap(pga[i]->pg); - int off = pga[i]->off & ~PAGE_MASK; + CFS_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_RECEIVE)) { + unsigned char *ptr = kmap(pga[i]->bp_page); + int off = pga[i]->bp_off & ~PAGE_MASK; memcpy(ptr + off, "bad1", min_t(typeof(nob), 4, nob)); - kunmap(pga[i]->pg); + kunmap(pga[i]->bp_page); } - cfs_crypto_hash_update_page(req, pga[i]->pg, - pga[i]->off & ~PAGE_MASK, + cfs_crypto_hash_update_page(req, pga[i]->bp_page, + pga[i]->bp_off & ~PAGE_MASK, count); - LL_CDEBUG_PAGE(D_PAGE, pga[i]->pg, "off %d\n", - (int)(pga[i]->off & ~PAGE_MASK)); + LL_CDEBUG_PAGE(D_PAGE, pga[i]->bp_page, "off %d\n", + (int)(pga[i]->bp_off & ~PAGE_MASK)); - nob -= pga[i]->count; + nob -= pga[i]->bp_count; pg_count--; i++; } @@ -1260,7 +1347,7 @@ static int osc_checksum_bulk(int nob, size_t pg_count, /* For sending we only compute the wrong checksum instead * of corrupting the data so it is still correct on a redo */ - if (opc == OST_WRITE && OBD_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND)) + if (opc == OST_WRITE && CFS_FAIL_CHECK(OBD_FAIL_OSC_CHECKSUM_SEND)) (*cksum)++; return 0; @@ -1270,7 +1357,7 @@ static int osc_checksum_bulk_rw(const char *obd_name, enum cksum_types cksum_type, int nob, size_t pg_count, struct brw_page **pga, int opc, - u32 *check_sum) + u32 *check_sum, bool resend) { obd_dif_csum_fn *fn = NULL; int sector_size = 0; @@ -1281,7 +1368,8 @@ static int osc_checksum_bulk_rw(const char *obd_name, if (fn) rc = osc_checksum_bulk_t10pi(obd_name, nob, pg_count, pga, - opc, fn, sector_size, check_sum); + opc, fn, sector_size, check_sum, + resend); else rc = osc_checksum_bulk(nob, pg_count, pga, opc, cksum_type, check_sum); @@ -1289,28 +1377,164 @@ static int osc_checksum_bulk_rw(const char *obd_name, RETURN(rc); } +#ifdef CONFIG_LL_ENCRYPTION +/** + * osc_encrypt_pagecache_blocks() - overlay to llcrypt_encrypt_pagecache_blocks + * @srcpage: The locked pagecache page containing the block(s) to encrypt + * @dstpage: The page to put encryption result + * @len: Total size of the block(s) to encrypt. Must be a nonzero + * multiple of the filesystem's block size. + * @offs: Byte offset within @page of the first block to encrypt. Must be + * a multiple of the filesystem's block size. + * @gfp_flags: Memory allocation flags + * + * This overlay function is necessary to be able to provide our own bounce page. + */ +static struct page *osc_encrypt_pagecache_blocks(struct page *srcpage, + struct page *dstpage, + unsigned int len, + unsigned int offs, + gfp_t gfp_flags) + +{ + const struct inode *inode = srcpage->mapping->host; + const unsigned int blockbits = inode->i_blkbits; + const unsigned int blocksize = 1 << blockbits; + u64 lblk_num = ((u64)srcpage->index << (PAGE_SHIFT - blockbits)) + + (offs >> blockbits); + unsigned int i; + int err; + + if (unlikely(!dstpage)) + return llcrypt_encrypt_pagecache_blocks(srcpage, len, offs, + gfp_flags); + + if (WARN_ON_ONCE(!PageLocked(srcpage))) + return ERR_PTR(-EINVAL); + + if (WARN_ON_ONCE(len <= 0 || !IS_ALIGNED(len | offs, blocksize))) + return ERR_PTR(-EINVAL); + + /* Set PagePrivate2 for disambiguation in + * osc_finalize_bounce_page(). + * It means cipher page was not allocated by llcrypt. + */ + SetPagePrivate2(dstpage); + + for (i = offs; i < offs + len; i += blocksize, lblk_num++) { + err = llcrypt_encrypt_block(inode, srcpage, dstpage, blocksize, + i, lblk_num, gfp_flags); + if (err) + return ERR_PTR(err); + } + SetPagePrivate(dstpage); + set_page_private(dstpage, (unsigned long)srcpage); + return dstpage; +} + +/** + * osc_finalize_bounce_page() - overlay to llcrypt_finalize_bounce_page + * + * This overlay function is necessary to handle bounce pages + * allocated by ourselves. + */ +static inline void osc_finalize_bounce_page(struct page **pagep) +{ + struct page *page = *pagep; + + ClearPageChecked(page); + /* PagePrivate2 was set in osc_encrypt_pagecache_blocks + * to indicate the cipher page was allocated by ourselves. + * So we must not free it via llcrypt. + */ + if (unlikely(!page || !PagePrivate2(page))) + return llcrypt_finalize_bounce_page(pagep); + + if (llcrypt_is_bounce_page(page)) { + *pagep = llcrypt_pagecache_page(page); + ClearPagePrivate2(page); + set_page_private(page, (unsigned long)NULL); + ClearPagePrivate(page); + } +} +#else /* !CONFIG_LL_ENCRYPTION */ +#define osc_encrypt_pagecache_blocks(srcpage, dstpage, len, offs, gfp_flags) \ + llcrypt_encrypt_pagecache_blocks(srcpage, len, offs, gfp_flags) +#define osc_finalize_bounce_page(page) llcrypt_finalize_bounce_page(page) +#endif + +static inline void osc_release_bounce_pages(struct brw_page **pga, + u32 page_count) +{ +#ifdef HAVE_LUSTRE_CRYPTO + struct page **pa = NULL; + int i, j = 0; + + if (!pga[0]) + return; + +#ifdef CONFIG_LL_ENCRYPTION + if (PageChecked(pga[0]->bp_page)) { + OBD_ALLOC_PTR_ARRAY_LARGE(pa, page_count); + if (!pa) + return; + } +#endif + + for (i = 0; i < page_count; i++) { + /* Bounce pages used by osc_encrypt_pagecache_blocks() + * called from osc_brw_prep_request() + * are identified thanks to the PageChecked flag. + */ + if (PageChecked(pga[i]->bp_page)) { + if (pa) + pa[j++] = pga[i]->bp_page; + osc_finalize_bounce_page(&pga[i]->bp_page); + } + pga[i]->bp_count -= pga[i]->bp_count_diff; + pga[i]->bp_off += pga[i]->bp_off_diff; + } + + if (pa) { + obd_pool_put_pages_array(pa, j); + OBD_FREE_PTR_ARRAY_LARGE(pa, page_count); + } +#endif +} + static int osc_brw_prep_request(int cmd, struct client_obd *cli, struct obdo *oa, u32 page_count, struct brw_page **pga, struct ptlrpc_request **reqp, int resend) { - struct ptlrpc_request *req; - struct ptlrpc_bulk_desc *desc; - struct ost_body *body; - struct obd_ioobj *ioobj; - struct niobuf_remote *niobuf; + struct ptlrpc_request *req; + struct ptlrpc_bulk_desc *desc; + struct ost_body *body; + struct obd_ioobj *ioobj; + struct niobuf_remote *niobuf; int niocount, i, requested_nob, opc, rc, short_io_size = 0; - struct osc_brw_async_args *aa; - struct req_capsule *pill; - struct brw_page *pg_prev; + struct osc_brw_async_args *aa; + struct req_capsule *pill; + struct brw_page *pg_prev; void *short_io_buf; const char *obd_name = cli->cl_import->imp_obd->obd_name; + struct inode *inode = NULL; + bool directio = false; + bool gpu = 0; + bool enable_checksum = true; + struct cl_page *clpage; - ENTRY; - if (OBD_FAIL_CHECK(OBD_FAIL_OSC_BRW_PREP_REQ)) - RETURN(-ENOMEM); /* Recoverable */ - if (OBD_FAIL_CHECK(OBD_FAIL_OSC_BRW_PREP_REQ2)) - RETURN(-EINVAL); /* Fatal */ + ENTRY; + if (pga[0]->bp_page) { + clpage = oap2cl_page(brw_page2oap(pga[0])); + inode = clpage->cp_inode; + if (clpage->cp_type == CPT_TRANSIENT) + directio = true; + } + if (CFS_FAIL_CHECK(OBD_FAIL_OSC_BRW_PREP_REQ)) + RETURN(-ENOMEM); /* Recoverable */ + if (CFS_FAIL_CHECK(OBD_FAIL_OSC_BRW_PREP_REQ2)) + RETURN(-EINVAL); /* Fatal */ if ((cmd & OBD_BRW_WRITE) != 0) { opc = OST_WRITE; @@ -1324,6 +1548,150 @@ osc_brw_prep_request(int cmd, struct client_obd *cli, struct obdo *oa, if (req == NULL) RETURN(-ENOMEM); + if (opc == OST_WRITE && inode && IS_ENCRYPTED(inode) && + llcrypt_has_encryption_key(inode)) { + struct page **pa = NULL; + +#ifdef CONFIG_LL_ENCRYPTION + OBD_ALLOC_PTR_ARRAY_LARGE(pa, page_count); + if (pa == NULL) { + ptlrpc_request_free(req); + RETURN(-ENOMEM); + } + + rc = obd_pool_get_pages_array(pa, page_count); + if (rc) { + CDEBUG(D_SEC, "failed to allocate from enc pool: %d\n", + rc); + ptlrpc_request_free(req); + RETURN(rc); + } +#endif + + for (i = 0; i < page_count; i++) { + struct brw_page *brwpg = pga[i]; + struct page *data_page = NULL; + bool retried = false; + bool lockedbymyself; + u32 nunits = + (brwpg->bp_off & ~PAGE_MASK) + brwpg->bp_count; + struct address_space *map_orig = NULL; + pgoff_t index_orig; + +retry_encrypt: + nunits = round_up(nunits, LUSTRE_ENCRYPTION_UNIT_SIZE); + /* The page can already be locked when we arrive here. + * This is possible when cl_page_assume/vvp_page_assume + * is stuck on wait_on_page_writeback with page lock + * held. In this case there is no risk for the lock to + * be released while we are doing our encryption + * processing, because writeback against that page will + * end in vvp_page_completion_write/cl_page_completion, + * which means only once the page is fully processed. + */ + lockedbymyself = trylock_page(brwpg->bp_page); + if (directio) { + map_orig = brwpg->bp_page->mapping; + brwpg->bp_page->mapping = inode->i_mapping; + index_orig = brwpg->bp_page->index; + clpage = oap2cl_page(brw_page2oap(brwpg)); + brwpg->bp_page->index = clpage->cp_page_index; + } + data_page = + osc_encrypt_pagecache_blocks(brwpg->bp_page, + pa ? pa[i] : NULL, + nunits, 0, + GFP_NOFS); + if (directio) { + brwpg->bp_page->mapping = map_orig; + brwpg->bp_page->index = index_orig; + } + if (lockedbymyself) + unlock_page(brwpg->bp_page); + if (IS_ERR(data_page)) { + rc = PTR_ERR(data_page); + if (rc == -ENOMEM && !retried) { + retried = true; + rc = 0; + goto retry_encrypt; + } + if (pa) { + obd_pool_put_pages_array(pa + i, + page_count - i); + OBD_FREE_PTR_ARRAY_LARGE(pa, + page_count); + } + ptlrpc_request_free(req); + RETURN(rc); + } + /* Set PageChecked flag on bounce page for + * disambiguation in osc_release_bounce_pages(). + */ + SetPageChecked(data_page); + brwpg->bp_page = data_page; + /* there should be no gap in the middle of page array */ + if (i == page_count - 1) { + struct osc_async_page *oap = + brw_page2oap(brwpg); + + oa->o_size = oap->oap_count + + oap->oap_obj_off + oap->oap_page_off; + } + /* len is forced to nunits, and relative offset to 0 + * so store the old, clear text info + */ + brwpg->bp_count_diff = nunits - brwpg->bp_count; + brwpg->bp_count = nunits; + brwpg->bp_off_diff = brwpg->bp_off & ~PAGE_MASK; + brwpg->bp_off = brwpg->bp_off & PAGE_MASK; + } + + if (pa) + OBD_FREE_PTR_ARRAY_LARGE(pa, page_count); + } else if (opc == OST_WRITE && inode && IS_ENCRYPTED(inode)) { + struct osc_async_page *oap = brw_page2oap(pga[0]); + struct cl_page *clpage = oap2cl_page(oap); + struct cl_object *clobj = clpage->cp_obj; + struct cl_attr attr = { 0 }; + struct lu_env *env; + __u16 refcheck; + + env = cl_env_get(&refcheck); + if (IS_ERR(env)) { + rc = PTR_ERR(env); + ptlrpc_request_free(req); + RETURN(rc); + } + + cl_object_attr_lock(clobj); + rc = cl_object_attr_get(env, clobj, &attr); + cl_object_attr_unlock(clobj); + cl_env_put(env, &refcheck); + if (rc != 0) { + ptlrpc_request_free(req); + RETURN(rc); + } + if (attr.cat_size) + oa->o_size = attr.cat_size; + } else if (opc == OST_READ && inode && IS_ENCRYPTED(inode) && + llcrypt_has_encryption_key(inode)) { + for (i = 0; i < page_count; i++) { + struct brw_page *pg = pga[i]; + u32 nunits = (pg->bp_off & ~PAGE_MASK) + pg->bp_count; + + nunits = round_up(nunits, LUSTRE_ENCRYPTION_UNIT_SIZE); + /* count/off are forced to cover the whole encryption + * unit size so that all encrypted data is stored on the + * OST, so adjust bp_{count,off}_diff for the size of + * the clear text. + */ + pg->bp_count_diff = nunits - pg->bp_count; + pg->bp_count = nunits; + pg->bp_off_diff = pg->bp_off & ~PAGE_MASK; + pg->bp_off = pg->bp_off & PAGE_MASK; + } + } + for (niocount = i = 1; i < page_count; i++) { if (!can_merge_pages(pga[i - 1], pga[i])) niocount++; @@ -1335,14 +1703,32 @@ osc_brw_prep_request(int cmd, struct client_obd *cli, struct obdo *oa, req_capsule_set_size(pill, &RMF_NIOBUF_REMOTE, RCL_CLIENT, niocount * sizeof(*niobuf)); - for (i = 0; i < page_count; i++) - short_io_size += pga[i]->count; + for (i = 0; i < page_count; i++) { + short_io_size += pga[i]->bp_count; + if (!inode || !IS_ENCRYPTED(inode) || + !llcrypt_has_encryption_key(inode)) { + pga[i]->bp_count_diff = 0; + pga[i]->bp_off_diff = 0; + } + } + + if (brw_page2oap(pga[0])->oap_brw_flags & OBD_BRW_RDMA_ONLY) { + enable_checksum = false; + short_io_size = 0; + gpu = 1; + } /* Check if read/write is small enough to be a short io. */ if (short_io_size > cli->cl_max_short_io_bytes || niocount > 1 || !imp_connect_shortio(cli->cl_import)) short_io_size = 0; + /* If this is an empty RPC to old server, just ignore it */ + if (!short_io_size && !pga[0]->bp_page) { + ptlrpc_request_free(req); + RETURN(-ENODATA); + } + req_capsule_set_size(pill, &RMF_SHORT_IO, RCL_CLIENT, opc == OST_READ ? 0 : short_io_size); if (opc == OST_READ) @@ -1370,14 +1756,14 @@ osc_brw_prep_request(int cmd, struct client_obd *cli, struct obdo *oa, desc = ptlrpc_prep_bulk_imp(req, page_count, cli->cl_import->imp_connect_data.ocd_brw_size >> LNET_MTU_BITS, (opc == OST_WRITE ? PTLRPC_BULK_GET_SOURCE : - PTLRPC_BULK_PUT_SINK) | - PTLRPC_BULK_BUF_KIOV, + PTLRPC_BULK_PUT_SINK), OST_BULK_PORTAL, &ptlrpc_bulk_kiov_pin_ops); if (desc == NULL) GOTO(out, rc = -ENOMEM); /* NB request now owns desc and will free it when it gets freed */ + desc->bd_is_rdma = gpu; no_bulk: body = req_capsule_client_get(pill, &RMF_OST_BODY); ioobj = req_capsule_client_get(pill, &RMF_OBD_IOOBJ); @@ -1407,6 +1793,16 @@ no_bulk: else /* short io */ ioobj_max_brw_set(ioobj, 0); + if (inode && IS_ENCRYPTED(inode) && + llcrypt_has_encryption_key(inode) && + !CFS_FAIL_CHECK(OBD_FAIL_LFSCK_NO_ENCFLAG)) { + if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) { + body->oa.o_valid |= OBD_MD_FLFLAGS; + body->oa.o_flags = 0; + } + body->oa.o_flags |= LUSTRE_ENCRYPT_FL; + } + if (short_io_size != 0) { if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) { body->oa.o_valid |= OBD_MD_FLFLAGS; @@ -1424,74 +1820,79 @@ no_bulk: LASSERT(page_count > 0); pg_prev = pga[0]; - for (requested_nob = i = 0; i < page_count; i++, niobuf++) { - struct brw_page *pg = pga[i]; - int poff = pg->off & ~PAGE_MASK; + for (requested_nob = i = 0; i < page_count; i++, niobuf++) { + struct brw_page *pg = pga[i]; + int poff = pg->bp_off & ~PAGE_MASK; - LASSERT(pg->count > 0); - /* make sure there is no gap in the middle of page array */ + LASSERT(pg->bp_count > 0); + /* make sure there is no gap in the middle of page array */ LASSERTF(page_count == 1 || - (ergo(i == 0, poff + pg->count == PAGE_SIZE) && + (ergo(i == 0, poff + pg->bp_count == PAGE_SIZE) && ergo(i > 0 && i < page_count - 1, - poff == 0 && pg->count == PAGE_SIZE) && + poff == 0 && pg->bp_count == PAGE_SIZE) && ergo(i == page_count - 1, poff == 0)), - "i: %d/%d pg: %p off: %llu, count: %u\n", - i, page_count, pg, pg->off, pg->count); - LASSERTF(i == 0 || pg->off > pg_prev->off, - "i %d p_c %u pg %p [pri %lu ind %lu] off %llu" - " prev_pg %p [pri %lu ind %lu] off %llu\n", - i, page_count, - pg->pg, page_private(pg->pg), pg->pg->index, pg->off, - pg_prev->pg, page_private(pg_prev->pg), - pg_prev->pg->index, pg_prev->off); - LASSERT((pga[0]->flag & OBD_BRW_SRVLOCK) == - (pg->flag & OBD_BRW_SRVLOCK)); + "i: %d/%d pg: %px off: %llu, count: %u\n", + i, page_count, pg, pg->bp_off, pg->bp_count); + LASSERTF(i == 0 || pg->bp_off > pg_prev->bp_off, + "i %d p_c %u pg %px [pri %lu ind %lu] off %llu prev_pg %px [pri %lu ind %lu] off %llu\n", + i, page_count, + pg->bp_page, page_private(pg->bp_page), + pg->bp_page->index, pg->bp_off, + pg_prev->bp_page, page_private(pg_prev->bp_page), + pg_prev->bp_page->index, pg_prev->bp_off); + LASSERT((pga[0]->bp_flag & OBD_BRW_SRVLOCK) == + (pg->bp_flag & OBD_BRW_SRVLOCK)); if (short_io_size != 0 && opc == OST_WRITE) { - unsigned char *ptr = ll_kmap_atomic(pg->pg, KM_USER0); + unsigned char *ptr = kmap_atomic(pg->bp_page); - LASSERT(short_io_size >= requested_nob + pg->count); + LASSERT(short_io_size >= requested_nob + pg->bp_count); memcpy(short_io_buf + requested_nob, ptr + poff, - pg->count); - ll_kunmap_atomic(ptr, KM_USER0); + pg->bp_count); + kunmap_atomic(ptr); } else if (short_io_size == 0) { - desc->bd_frag_ops->add_kiov_frag(desc, pg->pg, poff, - pg->count); + desc->bd_frag_ops->add_kiov_frag(desc, pg->bp_page, poff, + pg->bp_count); } - requested_nob += pg->count; + requested_nob += pg->bp_count; - if (i > 0 && can_merge_pages(pg_prev, pg)) { - niobuf--; - niobuf->rnb_len += pg->count; + if (i > 0 && can_merge_pages(pg_prev, pg)) { + niobuf--; + niobuf->rnb_len += pg->bp_count; } else { - niobuf->rnb_offset = pg->off; - niobuf->rnb_len = pg->count; - niobuf->rnb_flags = pg->flag; - } - pg_prev = pg; - } + niobuf->rnb_offset = pg->bp_off; + niobuf->rnb_len = pg->bp_count; + niobuf->rnb_flags = pg->bp_flag; + } + pg_prev = pg; + if (CFS_FAIL_CHECK(OBD_FAIL_OSC_MARK_COMPRESSED)) + niobuf->rnb_flags |= OBD_BRW_COMPRESSED; + } - LASSERTF((void *)(niobuf - niocount) == - req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE), - "want %p - real %p\n", req_capsule_client_get(&req->rq_pill, - &RMF_NIOBUF_REMOTE), (void *)(niobuf - niocount)); + LASSERTF((void *)(niobuf - niocount) == + req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE), + "want %px - real %px\n", + req_capsule_client_get(&req->rq_pill, &RMF_NIOBUF_REMOTE), + (void *)(niobuf - niocount)); - osc_announce_cached(cli, &body->oa, opc == OST_WRITE ? requested_nob:0); - if (resend) { - if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) { - body->oa.o_valid |= OBD_MD_FLFLAGS; - body->oa.o_flags = 0; - } - body->oa.o_flags |= OBD_FL_RECOV_RESEND; - } + osc_announce_cached(cli, &body->oa, opc == OST_WRITE ? requested_nob:0); + if (resend) { + if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) { + body->oa.o_valid |= OBD_MD_FLFLAGS; + body->oa.o_flags = 0; + } + body->oa.o_flags |= OBD_FL_RECOV_RESEND; + } + + if (osc_should_shrink_grant(cli)) + osc_shrink_grant_local(cli, &body->oa); - if (osc_should_shrink_grant(cli)) - osc_shrink_grant_local(cli, &body->oa); + if (!cli->cl_checksum || sptlrpc_flavor_has_bulk(&req->rq_flvr)) + enable_checksum = false; /* size[REQ_REC_OFF] still sizeof (*body) */ if (opc == OST_WRITE) { - if (cli->cl_checksum && - !sptlrpc_flavor_has_bulk(&req->rq_flvr)) { + if (enable_checksum) { /* store cl_cksum_type in a local variable since * it can be changed via lprocfs */ enum cksum_types cksum_type = cli->cl_cksum_type; @@ -1506,17 +1907,18 @@ no_bulk: rc = osc_checksum_bulk_rw(obd_name, cksum_type, requested_nob, page_count, pga, OST_WRITE, - &body->oa.o_cksum); + &body->oa.o_cksum, resend); if (rc < 0) { - CDEBUG(D_PAGE, "failed to checksum, rc = %d\n", + CDEBUG(D_PAGE, "failed to checksum: rc = %d\n", rc); GOTO(out, rc); } - CDEBUG(D_PAGE, "checksum at write origin: %x\n", - body->oa.o_cksum); + CDEBUG(D_PAGE | (resend ? D_HA : 0), + "checksum at write origin: %x (%x)\n", + body->oa.o_cksum, cksum_type); - /* save this in 'oa', too, for later checking */ - oa->o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS; + /* save this in 'oa', too, for later checking */ + oa->o_valid |= OBD_MD_FLCKSUM | OBD_MD_FLFLAGS; oa->o_flags |= obd_cksum_type_pack(obd_name, cksum_type); } else { @@ -1529,8 +1931,7 @@ no_bulk: req_capsule_set_size(pill, &RMF_RCS, RCL_SERVER, sizeof(__u32) * niocount); } else { - if (cli->cl_checksum && - !sptlrpc_flavor_has_bulk(&req->rq_flvr)) { + if (enable_checksum) { if ((body->oa.o_valid & OBD_MD_FLFLAGS) == 0) body->oa.o_flags = 0; body->oa.o_flags |= obd_cksum_type_pack(obd_name, @@ -1545,8 +1946,7 @@ no_bulk: } ptlrpc_request_set_replen(req); - CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); - aa = ptlrpc_req_async_args(req); + aa = ptlrpc_req_async_args(aa, req); aa->aa_oa = oa; aa->aa_requested_nob = requested_nob; aa->aa_nio_count = niocount; @@ -1583,15 +1983,15 @@ static void dump_all_bulk_pages(struct obdo *oa, __u32 page_count, * file/fid, not during the resends/retries. */ snprintf(dbgcksum_file_name, sizeof(dbgcksum_file_name), "%s-checksum_dump-osc-"DFID":[%llu-%llu]-%x-%x", - (strncmp(libcfs_debug_file_path_arr, "NONE", 4) != 0 ? - libcfs_debug_file_path_arr : - LIBCFS_DEBUG_FILE_PATH_DEFAULT), + (strncmp(libcfs_debug_file_path, "NONE", 4) != 0 ? + libcfs_debug_file_path : LIBCFS_DEBUG_FILE_PATH_DEFAULT), oa->o_valid & OBD_MD_FLFID ? oa->o_parent_seq : 0ULL, oa->o_valid & OBD_MD_FLFID ? oa->o_parent_oid : 0, oa->o_valid & OBD_MD_FLFID ? oa->o_parent_ver : 0, - pga[0]->off, - pga[page_count-1]->off + pga[page_count-1]->count - 1, + pga[0]->bp_off, + pga[page_count-1]->bp_off + pga[page_count-1]->bp_count - 1, client_cksum, server_cksum); + CWARN("dumping checksum data to %s\n", dbgcksum_file_name); filp = filp_open(dbgcksum_file_name, O_CREAT | O_EXCL | O_WRONLY | O_LARGEFILE, 0600); if (IS_ERR(filp)) { @@ -1607,8 +2007,8 @@ static void dump_all_bulk_pages(struct obdo *oa, __u32 page_count, } for (i = 0; i < page_count; i++) { - len = pga[i]->count; - buf = kmap(pga[i]->pg); + len = pga[i]->bp_count; + buf = kmap(pga[i]->bp_page); while (len != 0) { rc = cfs_kernel_write(filp, buf, len, &filp->f_pos); if (rc < 0) { @@ -1618,21 +2018,20 @@ static void dump_all_bulk_pages(struct obdo *oa, __u32 page_count, } len -= rc; buf += rc; - CDEBUG(D_INFO, "%s: wrote %d bytes\n", - dbgcksum_file_name, rc); } - kunmap(pga[i]->pg); + kunmap(pga[i]->bp_page); } - rc = ll_vfs_fsync_range(filp, 0, LLONG_MAX, 1); + rc = vfs_fsync_range(filp, 0, LLONG_MAX, 1); if (rc) CERROR("%s: sync returns %d\n", dbgcksum_file_name, rc); filp_close(filp, NULL); - return; + + libcfs_debug_dumplog(); } static int -check_write_checksum(struct obdo *oa, const struct lnet_process_id *peer, +check_write_checksum(struct obdo *oa, const struct lnet_processid *peer, __u32 client_cksum, __u32 server_cksum, struct osc_brw_async_args *aa) { @@ -1681,7 +2080,7 @@ check_write_checksum(struct obdo *oa, const struct lnet_process_id *peer, rc = osc_checksum_bulk_t10pi(obd_name, aa->aa_requested_nob, aa->aa_page_count, aa->aa_ppga, OST_WRITE, fn, sector_size, - &new_cksum); + &new_cksum, true); else rc = osc_checksum_bulk(aa->aa_requested_nob, aa->aa_page_count, aa->aa_ppga, OST_WRITE, cksum_type, @@ -1705,13 +2104,13 @@ check_write_checksum(struct obdo *oa, const struct lnet_process_id *peer, DFID " object "DOSTID" extent [%llu-%llu], original " "client csum %x (type %x), server csum %x (type %x)," " client csum now %x\n", - obd_name, msg, libcfs_nid2str(peer->nid), + obd_name, msg, libcfs_nidstr(&peer->nid), oa->o_valid & OBD_MD_FLFID ? oa->o_parent_seq : (__u64)0, oa->o_valid & OBD_MD_FLFID ? oa->o_parent_oid : 0, oa->o_valid & OBD_MD_FLFID ? oa->o_parent_ver : 0, - POSTID(&oa->o_oi), aa->aa_ppga[0]->off, - aa->aa_ppga[aa->aa_page_count - 1]->off + - aa->aa_ppga[aa->aa_page_count-1]->count - 1, + POSTID(&oa->o_oi), aa->aa_ppga[0]->bp_off, + aa->aa_ppga[aa->aa_page_count - 1]->bp_off + + aa->aa_ppga[aa->aa_page_count-1]->bp_count - 1, client_cksum, obd_cksum_type_unpack(aa->aa_oa->o_flags), server_cksum, cksum_type, new_cksum); @@ -1724,23 +2123,27 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) struct osc_brw_async_args *aa = (void *)&req->rq_async_args; struct client_obd *cli = aa->aa_cli; const char *obd_name = cli->cl_import->imp_obd->obd_name; - const struct lnet_process_id *peer = + const struct lnet_processid *peer = &req->rq_import->imp_connection->c_peer; struct ost_body *body; u32 client_cksum = 0; - ENTRY; + struct inode *inode = NULL; + unsigned int blockbits = 0, blocksize = 0; + struct cl_page *clpage; - if (rc < 0 && rc != -EDQUOT) { - DEBUG_REQ(D_INFO, req, "Failed request with rc = %d\n", rc); - RETURN(rc); - } + ENTRY; - LASSERTF(req->rq_repmsg != NULL, "rc = %d\n", rc); - body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); - if (body == NULL) { - DEBUG_REQ(D_INFO, req, "Can't unpack body\n"); - RETURN(-EPROTO); - } + if (rc < 0 && rc != -EDQUOT) { + DEBUG_REQ(D_INFO, req, "Failed request: rc = %d", rc); + RETURN(rc); + } + + LASSERTF(req->rq_repmsg != NULL, "rc = %d\n", rc); + body = req_capsule_server_get(&req->rq_pill, &RMF_OST_BODY); + if (body == NULL) { + DEBUG_REQ(D_INFO, req, "cannot unpack body"); + RETURN(-EPROTO); + } /* set/clear over quota flag for a uid/gid/projid */ if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE && @@ -1748,42 +2151,45 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) unsigned qid[LL_MAXQUOTAS] = { body->oa.o_uid, body->oa.o_gid, body->oa.o_projid }; - CDEBUG(D_QUOTA, "setdq for [%u %u %u] with valid %#llx, flags %x\n", + CDEBUG(D_QUOTA, + "setdq for [%u %u %u] with valid %#llx, flags %x\n", body->oa.o_uid, body->oa.o_gid, body->oa.o_projid, body->oa.o_valid, body->oa.o_flags); - osc_quota_setdq(cli, req->rq_xid, qid, body->oa.o_valid, - body->oa.o_flags); - } + osc_quota_setdq(cli, req->rq_xid, qid, body->oa.o_valid, + body->oa.o_flags); + } - osc_update_grant(cli, body); + osc_update_grant(cli, body); - if (rc < 0) - RETURN(rc); + if (rc < 0) + RETURN(rc); - if (aa->aa_oa->o_valid & OBD_MD_FLCKSUM) - client_cksum = aa->aa_oa->o_cksum; /* save for later */ + if (aa->aa_oa->o_valid & OBD_MD_FLCKSUM) + client_cksum = aa->aa_oa->o_cksum; /* save for later */ - if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE) { - if (rc > 0) { - CERROR("Unexpected +ve rc %d\n", rc); - RETURN(-EPROTO); - } + if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE) { + if (rc > 0) { + CERROR("%s: unexpected positive size %d\n", + obd_name, rc); + RETURN(-EPROTO); + } if (req->rq_bulk != NULL && sptlrpc_cli_unwrap_bulk_write(req, req->rq_bulk)) - RETURN(-EAGAIN); + RETURN(-EAGAIN); - if ((aa->aa_oa->o_valid & OBD_MD_FLCKSUM) && client_cksum && - check_write_checksum(&body->oa, peer, client_cksum, + if ((aa->aa_oa->o_valid & OBD_MD_FLCKSUM) && client_cksum && + check_write_checksum(&body->oa, peer, client_cksum, body->oa.o_cksum, aa)) - RETURN(-EAGAIN); + RETURN(-EAGAIN); - rc = check_write_rcs(req, aa->aa_requested_nob,aa->aa_nio_count, - aa->aa_page_count, aa->aa_ppga); - GOTO(out, rc); - } + rc = check_write_rcs(req, aa->aa_requested_nob, + aa->aa_nio_count, aa->aa_page_count, + aa->aa_ppga); + GOTO(out, rc); + } - /* The rest of this function executes only for OST_READs */ + /* The rest of this function executes only for OST_READs */ if (req->rq_bulk == NULL) { rc = req_capsule_get_size(&req->rq_pill, &RMF_SHORT_IO, @@ -1793,20 +2199,20 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) /* if unwrap_bulk failed, return -EAGAIN to retry */ rc = sptlrpc_cli_unwrap_bulk_read(req, req->rq_bulk, rc); } - if (rc < 0) - GOTO(out, rc = -EAGAIN); + if (rc < 0) + GOTO(out, rc = -EAGAIN); - if (rc > aa->aa_requested_nob) { - CERROR("Unexpected rc %d (%d requested)\n", rc, - aa->aa_requested_nob); - RETURN(-EPROTO); - } + if (rc > aa->aa_requested_nob) { + CERROR("%s: unexpected size %d, requested %d\n", obd_name, + rc, aa->aa_requested_nob); + RETURN(-EPROTO); + } if (req->rq_bulk != NULL && rc != req->rq_bulk->bd_nob_transferred) { - CERROR ("Unexpected rc %d (%d transferred)\n", - rc, req->rq_bulk->bd_nob_transferred); - return (-EPROTO); - } + CERROR("%s: unexpected size %d, transferred %d\n", obd_name, + rc, req->rq_bulk->bd_nob_transferred); + RETURN(-EPROTO); + } if (req->rq_bulk == NULL) { /* short io */ @@ -1820,15 +2226,15 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) nob = rc; while (nob > 0 && pg_count > 0) { unsigned char *ptr; - int count = aa->aa_ppga[i]->count > nob ? - nob : aa->aa_ppga[i]->count; + int count = aa->aa_ppga[i]->bp_count > nob ? + nob : aa->aa_ppga[i]->bp_count; CDEBUG(D_CACHE, "page %p count %d\n", - aa->aa_ppga[i]->pg, count); - ptr = ll_kmap_atomic(aa->aa_ppga[i]->pg, KM_USER0); - memcpy(ptr + (aa->aa_ppga[i]->off & ~PAGE_MASK), buf, + aa->aa_ppga[i]->bp_page, count); + ptr = kmap_atomic(aa->aa_ppga[i]->bp_page); + memcpy(ptr + (aa->aa_ppga[i]->bp_off & ~PAGE_MASK), buf, count); - ll_kunmap_atomic((void *) ptr, KM_USER0); + kunmap_atomic((void *) ptr); buf += count; nob -= count; @@ -1837,35 +2243,40 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) } } - if (rc < aa->aa_requested_nob) - handle_short_read(rc, aa->aa_page_count, aa->aa_ppga); + if (rc < aa->aa_requested_nob) + handle_short_read(rc, aa->aa_page_count, aa->aa_ppga); - if (body->oa.o_valid & OBD_MD_FLCKSUM) { - static int cksum_counter; - u32 server_cksum = body->oa.o_cksum; - char *via = ""; - char *router = ""; + if (body->oa.o_valid & OBD_MD_FLCKSUM) { + static int cksum_counter; + u32 server_cksum = body->oa.o_cksum; + int nob = rc; + char *via = ""; + char *router = ""; enum cksum_types cksum_type; u32 o_flags = body->oa.o_valid & OBD_MD_FLFLAGS ? body->oa.o_flags : 0; cksum_type = obd_cksum_type_unpack(o_flags); - rc = osc_checksum_bulk_rw(obd_name, cksum_type, rc, + rc = osc_checksum_bulk_rw(obd_name, cksum_type, nob, aa->aa_page_count, aa->aa_ppga, - OST_READ, &client_cksum); + OST_READ, &client_cksum, false); if (rc < 0) GOTO(out, rc); if (req->rq_bulk != NULL && - peer->nid != req->rq_bulk->bd_sender) { + !nid_same(&peer->nid, &req->rq_bulk->bd_sender)) { via = " via "; - router = libcfs_nid2str(req->rq_bulk->bd_sender); + router = libcfs_nidstr(&req->rq_bulk->bd_sender); } if (server_cksum != client_cksum) { struct ost_body *clbody; + __u32 client_cksum2; u32 page_count = aa->aa_page_count; + osc_checksum_bulk_rw(obd_name, cksum_type, nob, + page_count, aa->aa_ppga, + OST_READ, &client_cksum2, true); clbody = req_capsule_client_get(&req->rq_pill, &RMF_OST_BODY); if (cli->cl_checksum_dump) @@ -1875,10 +2286,10 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) LCONSOLE_ERROR_MSG(0x133, "%s: BAD READ CHECKSUM: from " "%s%s%s inode "DFID" object "DOSTID - " extent [%llu-%llu], client %x, " + " extent [%llu-%llu], client %x/%x, " "server %x, cksum_type %x\n", obd_name, - libcfs_nid2str(peer->nid), + libcfs_nidstr(&peer->nid), via, router, clbody->oa.o_valid & OBD_MD_FLFID ? clbody->oa.o_parent_seq : 0ULL, @@ -1887,11 +2298,11 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) clbody->oa.o_valid & OBD_MD_FLFID ? clbody->oa.o_parent_ver : 0, POSTID(&body->oa.o_oi), - aa->aa_ppga[0]->off, - aa->aa_ppga[page_count-1]->off + - aa->aa_ppga[page_count-1]->count - 1, - client_cksum, server_cksum, - cksum_type); + aa->aa_ppga[0]->bp_off, + aa->aa_ppga[page_count-1]->bp_off + + aa->aa_ppga[page_count-1]->bp_count - 1, + client_cksum, client_cksum2, + server_cksum, cksum_type); cksum_counter = 0; aa->aa_oa->o_cksum = client_cksum; rc = -EAGAIN; @@ -1900,32 +2311,106 @@ static int osc_brw_fini_request(struct ptlrpc_request *req, int rc) CDEBUG(D_PAGE, "checksum %x confirmed\n", client_cksum); rc = 0; } - } else if (unlikely(client_cksum)) { - static int cksum_missed; + } else if (unlikely(client_cksum)) { + static int cksum_missed; + + cksum_missed++; + if ((cksum_missed & (-cksum_missed)) == cksum_missed) + CERROR("%s: checksum %u requested from %s but not sent\n", + obd_name, cksum_missed, + libcfs_nidstr(&peer->nid)); + } else { + rc = 0; + } + + /* get the inode from the first cl_page */ + clpage = oap2cl_page(brw_page2oap(aa->aa_ppga[0])); + inode = clpage->cp_inode; + if (clpage->cp_type == CPT_TRANSIENT && inode) { + blockbits = inode->i_blkbits; + blocksize = 1 << blockbits; + } + if (inode && IS_ENCRYPTED(inode)) { + int idx; + + if (!llcrypt_has_encryption_key(inode)) { + CDEBUG(D_SEC, "no enc key for ino %lu\n", inode->i_ino); + GOTO(out, rc); + } + for (idx = 0; idx < aa->aa_page_count; idx++) { + struct brw_page *brwpg = aa->aa_ppga[idx]; + unsigned int offs = 0; + + while (offs < PAGE_SIZE) { + /* do not decrypt if page is all 0s */ + if (memchr_inv(page_address(brwpg->bp_page) + offs, + 0, LUSTRE_ENCRYPTION_UNIT_SIZE) == NULL) { + /* if page is empty forward info to + * upper layers (ll_io_zero_page) by + * clearing PagePrivate2 + */ + if (!offs) + ClearPagePrivate2(brwpg->bp_page); + break; + } + + if (blockbits) { + /* This is direct IO case. Directly call + * decrypt function that takes inode as + * input parameter. Page does not need + * to be locked. + */ + u64 lblk_num; + unsigned int i; + + clpage = + oap2cl_page(brw_page2oap(brwpg)); + lblk_num = + ((u64)(clpage->cp_page_index) << + (PAGE_SHIFT - blockbits)) + + (offs >> blockbits); + for (i = offs; + i < offs + + LUSTRE_ENCRYPTION_UNIT_SIZE; + i += blocksize, lblk_num++) { + rc = + llcrypt_decrypt_block_inplace( + inode, brwpg->bp_page, + blocksize, i, + lblk_num); + if (rc) + break; + } + } else { + rc = llcrypt_decrypt_pagecache_blocks( + brwpg->bp_page, + LUSTRE_ENCRYPTION_UNIT_SIZE, + offs); + } + if (rc) + GOTO(out, rc); + + offs += LUSTRE_ENCRYPTION_UNIT_SIZE; + } + } + } - cksum_missed++; - if ((cksum_missed & (-cksum_missed)) == cksum_missed) - CERROR("Checksum %u requested from %s but not sent\n", - cksum_missed, libcfs_nid2str(peer->nid)); - } else { - rc = 0; - } out: if (rc >= 0) lustre_get_wire_obdo(&req->rq_import->imp_connect_data, aa->aa_oa, &body->oa); - RETURN(rc); + RETURN(rc); } static int osc_brw_redo_request(struct ptlrpc_request *request, struct osc_brw_async_args *aa, int rc) { - struct ptlrpc_request *new_req; - struct osc_brw_async_args *new_aa; - struct osc_async_page *oap; - ENTRY; + struct ptlrpc_request *new_req; + struct osc_brw_async_args *new_aa; + ENTRY; + /* The below message is checked in replay-ost-single.sh test_8ae*/ DEBUG_REQ(rc == -EINPROGRESS ? D_RPCTRACE : D_ERROR, request, "redo for recoverable error %d", rc); @@ -1936,17 +2421,10 @@ static int osc_brw_redo_request(struct ptlrpc_request *request, if (rc) RETURN(rc); - list_for_each_entry(oap, &aa->aa_oaps, oap_rpc_item) { - if (oap->oap_request != NULL) { - LASSERTF(request == oap->oap_request, - "request %p != oap_request %p\n", - request, oap->oap_request); - if (oap->oap_interrupted) { - ptlrpc_req_finished(new_req); - RETURN(-EINTR); - } - } - } + + LASSERTF(request == aa->aa_request, + "request %p != aa_request %p\n", + request, aa->aa_request); /* * New request takes over pga and oaps from old request. * Note that copying a list_head doesn't work, need to move it... @@ -1964,7 +2442,7 @@ static int osc_brw_redo_request(struct ptlrpc_request *request, new_req->rq_generation_set = 1; new_req->rq_import_generation = request->rq_import_generation; - new_aa = ptlrpc_req_async_args(new_req); + new_aa = ptlrpc_req_async_args(new_aa, new_req); INIT_LIST_HEAD(&new_aa->aa_oaps); list_splice_init(&aa->aa_oaps, &new_aa->aa_oaps); @@ -1972,12 +2450,10 @@ static int osc_brw_redo_request(struct ptlrpc_request *request, list_splice_init(&aa->aa_exts, &new_aa->aa_exts); new_aa->aa_resends = aa->aa_resends; - list_for_each_entry(oap, &new_aa->aa_oaps, oap_rpc_item) { - if (oap->oap_request) { - ptlrpc_req_finished(oap->oap_request); - oap->oap_request = ptlrpc_request_addref(new_req); - } - } + if (aa->aa_request) { + ptlrpc_req_finished(aa->aa_request); + new_aa->aa_request = ptlrpc_request_addref(new_req); + } /* XXX: This code will run into problem if we're going to support * to add a series of BRW RPCs into a self-defined ptlrpc_request_set @@ -2011,7 +2487,7 @@ static void sort_brw_pages(struct brw_page **array, int num) for (i = stride ; i < num ; i++) { tmp = array[i]; j = i; - while (j >= stride && array[j - stride]->off > tmp->off) { + while (j >= stride && array[j - stride]->bp_off > tmp->bp_off) { array[j] = array[j - stride]; j -= stride; } @@ -2022,23 +2498,55 @@ static void sort_brw_pages(struct brw_page **array, int num) static void osc_release_ppga(struct brw_page **ppga, size_t count) { - LASSERT(ppga != NULL); - OBD_FREE(ppga, sizeof(*ppga) * count); + LASSERT(ppga != NULL); + OBD_FREE_PTR_ARRAY_LARGE(ppga, count); +} + +/* this is trying to propogate async writeback errors back up to the + * application. As an async write fails we record the error code for later if + * the app does an fsync. As long as errors persist we force future rpcs to be + * sync so that the app can get a sync error and break the cycle of queueing + * pages for which writeback will fail. + */ +static void osc_process_ar(struct osc_async_rc *ar, __u64 xid, + int rc) +{ + if (rc) { + if (!ar->ar_rc) + ar->ar_rc = rc; + + ar->ar_force_sync = 1; + ar->ar_min_xid = ptlrpc_sample_next_xid(); + return; + + } + + if (ar->ar_force_sync && (xid >= ar->ar_min_xid)) + ar->ar_force_sync = 0; } static int brw_interpret(const struct lu_env *env, struct ptlrpc_request *req, void *args, int rc) { struct osc_brw_async_args *aa = args; - struct osc_extent *ext; - struct osc_extent *tmp; struct client_obd *cli = aa->aa_cli; unsigned long transferred = 0; + struct cl_object *obj = NULL; + struct osc_async_page *last; + struct osc_extent *ext; + struct osc_extent *tmp; + struct lov_oinfo *loi; ENTRY; + ext = list_first_entry(&aa->aa_exts, struct osc_extent, oe_link); + rc = osc_brw_fini_request(req, rc); CDEBUG(D_INODE, "request %p aa %p rc %d\n", req, aa, rc); + + /* restore clear text pages */ + osc_release_bounce_pages(aa->aa_ppga, aa->aa_page_count); + /* * When server returns -EINPROGRESS, client should always retry * regardless of the number of times the bulk was resent already. @@ -2051,7 +2559,7 @@ static int brw_interpret(const struct lu_env *env, req->rq_import->imp_obd->obd_name, POSTID(&aa->aa_oa->o_oi), rc); } else if (rc == -EINPROGRESS || - client_should_resend(aa->aa_resends, aa->aa_cli)) { + client_should_resend(aa->aa_resends, aa->aa_cli)) { rc = osc_brw_redo_request(req, aa, rc); } else { CERROR("%s: too many resent retries for object: " @@ -2066,15 +2574,14 @@ static int brw_interpret(const struct lu_env *env, rc = -EIO; } + last = brw_page2oap(aa->aa_ppga[aa->aa_page_count - 1]); + obj = osc2cl(ext->oe_obj); + loi = cl2osc(obj)->oo_oinfo; + if (rc == 0) { struct obdo *oa = aa->aa_oa; struct cl_attr *attr = &osc_env_info(env)->oti_attr; unsigned long valid = 0; - struct cl_object *obj; - struct osc_async_page *last; - - last = brw_page2oap(aa->aa_ppga[aa->aa_page_count - 1]); - obj = osc2cl(last->oap_obj); cl_object_attr_lock(obj); if (oa->o_valid & OBD_MD_FLBLOCKS) { @@ -2095,7 +2602,6 @@ static int brw_interpret(const struct lu_env *env, } if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE) { - struct lov_oinfo *loi = cl2osc(obj)->oo_oinfo; loff_t last_off = last->oap_count + last->oap_obj_off + last->oap_page_off; @@ -2118,14 +2624,34 @@ static int brw_interpret(const struct lu_env *env, cl_object_attr_unlock(obj); } OBD_SLAB_FREE_PTR(aa->aa_oa, osc_obdo_kmem); + aa->aa_oa = NULL; - if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE && rc == 0) + if (lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE && rc == 0) { osc_inc_unstable_pages(req); + /* + * If req->rq_committed is set, it means that the dirty pages + * have already committed into the stable storage on OSTs + * (i.e. Direct I/O). + */ + if (!req->rq_committed) + cl_object_dirty_for_sync(env, cl_object_top(obj)); + } + if (aa->aa_request) { + __u64 xid = ptlrpc_req_xid(req); + + ptlrpc_req_finished(req); + if (xid && lustre_msg_get_opc(req->rq_reqmsg) == OST_WRITE) { + spin_lock(&cli->cl_loi_list_lock); + osc_process_ar(&cli->cl_ar, xid, rc); + osc_process_ar(&loi->loi_ar, xid, rc); + spin_unlock(&cli->cl_loi_list_lock); + } + } list_for_each_entry_safe(ext, tmp, &aa->aa_exts, oe_link) { list_del_init(&ext->oe_link); osc_extent_finish(env, ext, 1, - rc && req->rq_no_delay ? -EWOULDBLOCK : rc); + rc && req->rq_no_delay ? -EAGAIN : rc); } LASSERT(list_empty(&aa->aa_exts)); LASSERT(list_empty(&aa->aa_oaps)); @@ -2188,17 +2714,17 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, struct cl_req_attr *crattr = NULL; loff_t starting_offset = OBD_OBJECT_EOF; loff_t ending_offset = 0; - int mpflag = 0; + /* '1' for consistency with code that checks !mpflag to restore */ + int mpflag = 1; int mem_tight = 0; int page_count = 0; bool soft_sync = false; - bool interrupted = false; bool ndelay = false; int i; int grant = 0; int rc; __u32 layout_version = 0; - struct list_head rpc_list = LIST_HEAD_INIT(rpc_list); + LIST_HEAD(rpc_list); struct ost_body *body; ENTRY; LASSERT(!list_empty(ext_list)); @@ -2209,16 +2735,16 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, mem_tight |= ext->oe_memalloc; grant += ext->oe_grants; page_count += ext->oe_nr_pages; - layout_version = MAX(layout_version, ext->oe_layout_version); + layout_version = max(layout_version, ext->oe_layout_version); if (obj == NULL) obj = ext->oe_obj; } soft_sync = osc_over_unstable_soft_limit(cli); if (mem_tight) - mpflag = cfs_memory_pressure_get_and_set(); + mpflag = memalloc_noreclaim_save(); - OBD_ALLOC(pga, sizeof(*pga) * page_count); + OBD_ALLOC_PTR_ARRAY_LARGE(pga, page_count); if (pga == NULL) GOTO(out, rc = -ENOMEM); @@ -2234,30 +2760,32 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, if (soft_sync) oap->oap_brw_flags |= OBD_BRW_SOFT_SYNC; pga[i] = &oap->oap_brw_page; - pga[i]->off = oap->oap_obj_off + oap->oap_page_off; + pga[i]->bp_off = oap->oap_obj_off + oap->oap_page_off; i++; list_add_tail(&oap->oap_rpc_item, &rpc_list); if (starting_offset == OBD_OBJECT_EOF || - starting_offset > oap->oap_obj_off) + starting_offset > oap->oap_obj_off) { starting_offset = oap->oap_obj_off; - else + } else { + CDEBUG(D_CACHE, "page i:%d, oap->oap_obj_off %llu, oap->oap_page_off %u\n", + i, oap->oap_obj_off, oap->oap_page_off); LASSERT(oap->oap_page_off == 0); - if (ending_offset < oap->oap_obj_off + oap->oap_count) + } + if (ending_offset < oap->oap_obj_off + oap->oap_count) { ending_offset = oap->oap_obj_off + oap->oap_count; - else + } else { LASSERT(oap->oap_page_off + oap->oap_count == PAGE_SIZE); - if (oap->oap_interrupted) - interrupted = true; + } } if (ext->oe_ndelay) ndelay = true; } /* first page in the list */ - oap = list_entry(rpc_list.next, typeof(*oap), oap_rpc_item); + oap = list_first_entry(&rpc_list, typeof(*oap), oap_rpc_item); crattr = &osc_env_info(env)->oti_req_attr; memset(crattr, 0, sizeof(*crattr)); @@ -2288,9 +2816,6 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, req->rq_commit_cb = brw_commit; req->rq_interpret_reply = brw_interpret; req->rq_memalloc = mem_tight != 0; - oap->oap_request = ptlrpc_request_addref(req); - if (interrupted && !req->rq_intr) - ptlrpc_mark_interrupted(req); if (ndelay) { req->rq_no_resend = req->rq_no_delay = 1; /* probably set a shorter timeout value. @@ -2307,17 +2832,20 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, crattr->cra_oa = &body->oa; crattr->cra_flags = OBD_MD_FLMTIME | OBD_MD_FLCTIME | OBD_MD_FLATIME; cl_req_attr_set(env, osc2cl(obj), crattr); + lustre_msg_set_uid_gid(req->rq_reqmsg, &crattr->cra_uid, + &crattr->cra_gid); lustre_msg_set_jobid(req->rq_reqmsg, crattr->cra_jobid); - CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); - aa = ptlrpc_req_async_args(req); + aa = ptlrpc_req_async_args(aa, req); INIT_LIST_HEAD(&aa->aa_oaps); list_splice_init(&rpc_list, &aa->aa_oaps); INIT_LIST_HEAD(&aa->aa_exts); list_splice_init(ext_list, &aa->aa_exts); + aa->aa_request = ptlrpc_request_addref(req); spin_lock(&cli->cl_loi_list_lock); starting_offset >>= PAGE_SHIFT; + ending_offset >>= PAGE_SHIFT; if (cmd == OBD_BRW_READ) { cli->cl_r_in_flight++; lprocfs_oh_tally_log2(&cli->cl_read_page_hist, page_count); @@ -2333,31 +2861,45 @@ int osc_build_rpc(const struct lu_env *env, struct client_obd *cli, } spin_unlock(&cli->cl_loi_list_lock); - DEBUG_REQ(D_INODE, req, "%d pages, aa %p. now %ur/%uw in flight", - page_count, aa, cli->cl_r_in_flight, - cli->cl_w_in_flight); - OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_DELAY_IO, cfs_fail_val); + DEBUG_REQ(D_INODE, req, "%d pages, aa %p, now %ur/%uw in flight", + page_count, aa, cli->cl_r_in_flight, cli->cl_w_in_flight); + if (libcfs_debug & D_IOTRACE) { + struct lu_fid fid; + + fid.f_seq = crattr->cra_oa->o_parent_seq; + fid.f_oid = crattr->cra_oa->o_parent_oid; + fid.f_ver = crattr->cra_oa->o_parent_ver; + CDEBUG(D_IOTRACE, + DFID": %d %s pages, start %lld, end %lld, now %ur/%uw in flight\n", + PFID(&fid), page_count, + cmd == OBD_BRW_READ ? "read" : "write", starting_offset, + ending_offset, cli->cl_r_in_flight, cli->cl_w_in_flight); + } + CFS_FAIL_TIMEOUT(OBD_FAIL_OSC_DELAY_IO, cfs_fail_val); ptlrpcd_add_req(req); rc = 0; EXIT; out: - if (mem_tight != 0) - cfs_memory_pressure_restore(mpflag); + if (mem_tight) + memalloc_noreclaim_restore(mpflag); if (rc != 0) { LASSERT(req == NULL); if (oa) OBD_SLAB_FREE_PTR(oa, osc_obdo_kmem); - if (pga) - OBD_FREE(pga, sizeof(*pga) * page_count); + if (pga) { + osc_release_bounce_pages(pga, page_count); + osc_release_ppga(pga, page_count); + } /* this should happen rarely and is pretty bad, it makes the - * pending list not follow the dirty order */ - while (!list_empty(ext_list)) { - ext = list_entry(ext_list->next, struct osc_extent, - oe_link); + * pending list not follow the dirty order + */ + while ((ext = list_first_entry_or_null(ext_list, + struct osc_extent, + oe_link)) != NULL) { list_del_init(&ext->oe_link); osc_extent_finish(env, ext, 0, rc); } @@ -2365,6 +2907,34 @@ out: RETURN(rc); } +/* This is to refresh our lock in face of no RPCs. */ +void osc_send_empty_rpc(struct osc_object *osc, pgoff_t start) +{ + struct ptlrpc_request *req; + struct obdo oa; + struct brw_page bpg = { .bp_off = start, .bp_count = 1}; + struct brw_page *pga = &bpg; + int rc; + + memset(&oa, 0, sizeof(oa)); + oa.o_oi = osc->oo_oinfo->loi_oi; + oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP | OBD_MD_FLFLAGS; + /* For updated servers - don't do a read */ + oa.o_flags = OBD_FL_NORPC; + + rc = osc_brw_prep_request(OBD_BRW_READ, osc_cli(osc), &oa, 1, &pga, + &req, 0); + + /* If we succeeded we ship it off, if not there's no point in doing + * anything. Also no resends. + * No interpret callback, no commit callback. + */ + if (!rc) { + req->rq_no_resend = 1; + ptlrpcd_add_req(req); + } +} + static int osc_set_lock_data(struct ldlm_lock *lock, void *data) { int set = 0; @@ -2383,10 +2953,11 @@ static int osc_set_lock_data(struct ldlm_lock *lock, void *data) return set; } -int osc_enqueue_fini(struct ptlrpc_request *req, osc_enqueue_upcall_f upcall, - void *cookie, struct lustre_handle *lockh, - enum ldlm_mode mode, __u64 *flags, bool speculative, - int errcode) +static int osc_enqueue_fini(struct ptlrpc_request *req, + osc_enqueue_upcall_f upcall, + void *cookie, struct lustre_handle *lockh, + enum ldlm_mode mode, __u64 *flags, + bool speculative, int errcode) { bool intent = *flags & LDLM_FL_HAS_INTENT; int rc; @@ -2421,8 +2992,9 @@ int osc_enqueue_fini(struct ptlrpc_request *req, osc_enqueue_upcall_f upcall, RETURN(rc); } -int osc_enqueue_interpret(const struct lu_env *env, struct ptlrpc_request *req, - void *args, int rc) +static int osc_enqueue_interpret(const struct lu_env *env, + struct ptlrpc_request *req, + void *args, int rc) { struct osc_enqueue_args *aa = args; struct ldlm_lock *lock; @@ -2431,6 +3003,10 @@ int osc_enqueue_interpret(const struct lu_env *env, struct ptlrpc_request *req, struct ost_lvb *lvb = aa->oa_lvb; __u32 lvb_len = sizeof(*lvb); __u64 flags = 0; + struct ldlm_enqueue_info einfo = { + .ei_type = aa->oa_type, + .ei_mode = mode, + }; ENTRY; @@ -2438,7 +3014,7 @@ int osc_enqueue_interpret(const struct lu_env *env, struct ptlrpc_request *req, * be valid. */ lock = ldlm_handle2lock(lockh); LASSERTF(lock != NULL, - "lockh %#llx, req %p, aa %p - client evicted?\n", + "lockh %#llx, req %px, aa %px - client evicted?\n", lockh->cookie, req, aa); /* Take an additional reference so that a blocking AST that @@ -2448,10 +3024,10 @@ int osc_enqueue_interpret(const struct lu_env *env, struct ptlrpc_request *req, ldlm_lock_addref(lockh, mode); /* Let cl_lock_state_wait fail with -ERESTARTSYS to unuse sublocks. */ - OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_ENQUEUE_HANG, 2); + CFS_FAIL_TIMEOUT(OBD_FAIL_LDLM_ENQUEUE_HANG, 2); /* Let CP AST to grant the lock first. */ - OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 1); + CFS_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_ENQ_RACE, 1); if (aa->oa_speculative) { LASSERT(aa->oa_lvb == NULL); @@ -2460,22 +3036,20 @@ int osc_enqueue_interpret(const struct lu_env *env, struct ptlrpc_request *req, } /* Complete obtaining the lock procedure. */ - rc = ldlm_cli_enqueue_fini(aa->oa_exp, req, aa->oa_type, 1, - aa->oa_mode, aa->oa_flags, lvb, lvb_len, - lockh, rc); + rc = ldlm_cli_enqueue_fini(aa->oa_exp, &req->rq_pill, &einfo, 1, + aa->oa_flags, lvb, lvb_len, lockh, rc, + false); /* Complete osc stuff. */ rc = osc_enqueue_fini(req, aa->oa_upcall, aa->oa_cookie, lockh, mode, aa->oa_flags, aa->oa_speculative, rc); - OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_CANCEL_RACE, 10); + CFS_FAIL_TIMEOUT(OBD_FAIL_OSC_CP_CANCEL_RACE, 10); ldlm_lock_decref(lockh, mode); LDLM_LOCK_PUT(lock); RETURN(rc); } -struct ptlrpc_request_set *PTLRPCD_SET = (void *)1; - /* When enqueuing asynchronously, locks are not ordered, we can obtain a lock * from the 2nd OSC before a lock from the 1st one. This does not deadlock with * other synchronous requests, however keeping some locks and trying to obtain @@ -2485,9 +3059,8 @@ struct ptlrpc_request_set *PTLRPCD_SET = (void *)1; * release locks just after they are obtained. */ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, __u64 *flags, union ldlm_policy_data *policy, - struct ost_lvb *lvb, int kms_valid, - osc_enqueue_upcall_f upcall, void *cookie, - struct ldlm_enqueue_info *einfo, + struct ost_lvb *lvb, osc_enqueue_upcall_f upcall, + void *cookie, struct ldlm_enqueue_info *einfo, struct ptlrpc_request_set *rqset, int async, bool speculative) { @@ -2495,7 +3068,8 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, struct lustre_handle lockh = { 0 }; struct ptlrpc_request *req = NULL; int intent = *flags & LDLM_FL_HAS_INTENT; - __u64 match_flags = *flags; + __u64 search_flags = *flags; + __u64 match_flags = 0; enum ldlm_mode mode; int rc; ENTRY; @@ -2505,15 +3079,6 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, policy->l_extent.start -= policy->l_extent.start & ~PAGE_MASK; policy->l_extent.end |= ~PAGE_MASK; - /* - * kms is not valid when either object is completely fresh (so that no - * locks are cached), or object was evicted. In the latter case cached - * lock cannot be used, because it would prime inode state with - * potentially stale LVB. - */ - if (!kms_valid) - goto no_match; - /* Next, search for already existing extent locks that will cover us */ /* If we're trying to read, we also search for an existing PW lock. The * VFS and page cache already protect us locally, so lots of readers/ @@ -2533,11 +3098,14 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, * matching a lock; speculative lock requests do not need to, * because they will not actually use the lock. */ if (!speculative) - match_flags |= LDLM_FL_LVB_READY; + search_flags |= LDLM_FL_LVB_READY; if (intent != 0) - match_flags |= LDLM_FL_BLOCK_GRANTED; - mode = ldlm_lock_match(obd->obd_namespace, match_flags, res_id, - einfo->ei_type, policy, mode, &lockh, 0); + search_flags |= LDLM_FL_BLOCK_GRANTED; + if (mode == LCK_GROUP) + match_flags = LDLM_MATCH_GROUP; + mode = ldlm_lock_match_with_skip(obd->obd_namespace, search_flags, 0, + res_id, einfo->ei_type, policy, mode, + &lockh, match_flags); if (mode) { struct ldlm_lock *matched; @@ -2576,27 +3144,9 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id, } } -no_match: if (*flags & (LDLM_FL_TEST_LOCK | LDLM_FL_MATCH_LOCK)) RETURN(-ENOLCK); - if (intent) { - req = ptlrpc_request_alloc(class_exp2cliimp(exp), - &RQF_LDLM_ENQUEUE_LVB); - if (req == NULL) - RETURN(-ENOMEM); - - rc = ldlm_prep_enqueue_req(exp, req, NULL, 0); - if (rc) { - ptlrpc_request_free(req); - RETURN(rc); - } - - req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER, - sizeof *lvb); - ptlrpc_request_set_replen(req); - } - /* users of osc_enqueue() can pass this flag for ldlm_lock_match() */ *flags &= ~LDLM_FL_BLOCK_GRANTED; @@ -2605,8 +3155,7 @@ no_match: if (async) { if (!rc) { struct osc_enqueue_args *aa; - CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); - aa = ptlrpc_req_async_args(req); + aa = ptlrpc_req_async_args(aa, req); aa->oa_exp = exp; aa->oa_mode = einfo->ei_mode; aa->oa_type = einfo->ei_type; @@ -2626,35 +3175,29 @@ no_match: } req->rq_interpret_reply = osc_enqueue_interpret; - if (rqset == PTLRPCD_SET) - ptlrpcd_add_req(req); - else - ptlrpc_set_add_req(rqset, req); - } else if (intent) { - ptlrpc_req_finished(req); + ptlrpc_set_add_req(rqset, req); } RETURN(rc); } rc = osc_enqueue_fini(req, upcall, cookie, &lockh, einfo->ei_mode, flags, speculative, rc); - if (intent) - ptlrpc_req_finished(req); RETURN(rc); } -int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, - enum ldlm_type type, union ldlm_policy_data *policy, - enum ldlm_mode mode, __u64 *flags, void *data, - struct lustre_handle *lockh, int unref) +int osc_match_base(const struct lu_env *env, struct obd_export *exp, + struct ldlm_res_id *res_id, enum ldlm_type type, + union ldlm_policy_data *policy, enum ldlm_mode mode, + __u64 *flags, struct osc_object *obj, + struct lustre_handle *lockh, enum ldlm_match_flags match_flags) { struct obd_device *obd = exp->exp_obd; __u64 lflags = *flags; enum ldlm_mode rc; ENTRY; - if (OBD_FAIL_CHECK(OBD_FAIL_OSC_MATCH)) + if (CFS_FAIL_CHECK(OBD_FAIL_OSC_MATCH)) RETURN(-EIO); /* Filesystem lock extents are extended to page boundaries so that @@ -2662,23 +3205,26 @@ int osc_match_base(struct obd_export *exp, struct ldlm_res_id *res_id, policy->l_extent.start -= policy->l_extent.start & ~PAGE_MASK; policy->l_extent.end |= ~PAGE_MASK; - /* Next, search for already existing extent locks that will cover us */ - /* If we're trying to read, we also search for an existing PW lock. The - * VFS and page cache already protect us locally, so lots of readers/ - * writers can share a single PW lock. */ - rc = mode; - if (mode == LCK_PR) - rc |= LCK_PW; - rc = ldlm_lock_match(obd->obd_namespace, lflags, - res_id, type, policy, rc, lockh, unref); + /* Next, search for already existing extent locks that will cover us */ + rc = ldlm_lock_match_with_skip(obd->obd_namespace, lflags, 0, + res_id, type, policy, mode, lockh, + match_flags); if (rc == 0 || lflags & LDLM_FL_TEST_LOCK) RETURN(rc); - if (data != NULL) { + if (obj != NULL) { struct ldlm_lock *lock = ldlm_handle2lock(lockh); LASSERT(lock != NULL); - if (!osc_set_lock_data(lock, data)) { + if (osc_set_lock_data(lock, obj)) { + lock_res_and_lock(lock); + if (!ldlm_is_lvb_cached(lock)) { + LASSERT(lock->l_ast_data == obj); + osc_lock_lvb_update(env, obj, lock, NULL); + ldlm_set_lvb_cached(lock); + } + unlock_res_and_lock(lock); + } else { ldlm_lock_decref(lockh, rc); rc = 0; } @@ -2730,6 +3276,22 @@ static int osc_statfs_async(struct obd_export *exp, int rc; ENTRY; + if (obd->obd_osfs_age >= max_age) { + CDEBUG(D_SUPER, + "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n", + obd->obd_name, &obd->obd_osfs, + obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks, + obd->obd_osfs.os_ffree, obd->obd_osfs.os_files); + spin_lock(&obd->obd_osfs_lock); + memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs)); + spin_unlock(&obd->obd_osfs_lock); + oinfo->oi_flags |= OBD_STATFS_FROM_CACHE; + if (oinfo->oi_cb_up) + oinfo->oi_cb_up(oinfo, 0); + + RETURN(0); + } + /* We could possibly pass max_age in the request (as an absolute * timestamp or a "seconds.usec ago") so the target can avoid doing * extra calls into the filesystem if that isn't necessary (e.g. @@ -2756,8 +3318,7 @@ static int osc_statfs_async(struct obd_export *exp, } req->rq_interpret_reply = osc_statfs_interpret; - CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); - aa = ptlrpc_req_async_args(req); + aa = ptlrpc_req_async_args(aa, req); aa->aa_oi = oinfo; ptlrpc_set_add_req(rqset, req); @@ -2770,19 +3331,17 @@ static int osc_statfs(const struct lu_env *env, struct obd_export *exp, struct obd_device *obd = class_exp2obd(exp); struct obd_statfs *msfs; struct ptlrpc_request *req; - struct obd_import *imp = NULL; + struct obd_import *imp, *imp0; int rc; ENTRY; - - /*Since the request might also come from lprocfs, so we need - *sync this with client_disconnect_export Bug15684*/ - down_read(&obd->u.cli.cl_sem); - if (obd->u.cli.cl_import) - imp = class_import_get(obd->u.cli.cl_import); - up_read(&obd->u.cli.cl_sem); - if (!imp) - RETURN(-ENODEV); + /*Since the request might also come from lprocfs, so we need + *sync this with client_disconnect_export Bug15684 + */ + with_imp_locked(obd, imp0, rc) + imp = class_import_get(imp0); + if (rc) + RETURN(rc); /* We could possibly pass max_age in the request (as an absolute * timestamp or a "seconds.usec ago") so the target can avoid doing @@ -2831,84 +3390,92 @@ out: static int osc_iocontrol(unsigned int cmd, struct obd_export *exp, int len, void *karg, void __user *uarg) { - struct obd_device *obd = exp->exp_obd; - struct obd_ioctl_data *data = karg; - int err = 0; - ENTRY; + struct obd_device *obd = exp->exp_obd; + struct obd_ioctl_data *data; + int rc; + + ENTRY; + CDEBUG(D_IOCTL, "%s: cmd=%x len=%u karg=%pK uarg=%pK\n", + obd->obd_name, cmd, len, karg, uarg); if (!try_module_get(THIS_MODULE)) { CERROR("%s: cannot get module '%s'\n", obd->obd_name, module_name(THIS_MODULE)); - return -EINVAL; - } - switch (cmd) { - case OBD_IOC_CLIENT_RECOVER: - err = ptlrpc_recover_import(obd->u.cli.cl_import, - data->ioc_inlbuf1, 0); - if (err > 0) - err = 0; - GOTO(out, err); - case IOC_OSC_SET_ACTIVE: - err = ptlrpc_set_import_active(obd->u.cli.cl_import, - data->ioc_offset); - GOTO(out, err); - case OBD_IOC_PING_TARGET: - err = ptlrpc_obd_ping(obd); - GOTO(out, err); + RETURN(-EINVAL); + } + + switch (cmd) { + case OBD_IOC_CLIENT_RECOVER: + if (unlikely(karg == NULL)) { + OBD_IOC_ERROR(obd->obd_name, cmd, "karg=NULL", + rc = -EINVAL); + break; + } + data = karg; + rc = ptlrpc_recover_import(obd->u.cli.cl_import, + data->ioc_inlbuf1, 0); + if (rc > 0) + rc = 0; + break; + case OBD_IOC_GETATTR: + if (unlikely(karg == NULL)) { + OBD_IOC_ERROR(obd->obd_name, cmd, "karg=NULL", + rc = -EINVAL); + break; + } + data = karg; + rc = obd_getattr(NULL, exp, &data->ioc_obdo1); + break; +#ifdef IOC_OSC_SET_ACTIVE + case_OBD_IOC_DEPRECATED_FT(IOC_OSC_SET_ACTIVE, obd->obd_name, 2, 17); +#endif + case OBD_IOC_SET_ACTIVE: + if (unlikely(karg == NULL)) { + OBD_IOC_ERROR(obd->obd_name, cmd, "karg=NULL", + rc = -EINVAL); + break; + } + data = karg; + rc = ptlrpc_set_import_active(obd->u.cli.cl_import, + data->ioc_offset); + break; default: - CDEBUG(D_INODE, "unrecognised ioctl %#x by %s\n", - cmd, current_comm()); - GOTO(out, err = -ENOTTY); + rc = OBD_IOC_DEBUG(D_IOCTL, obd->obd_name, cmd, "unrecognized", + -ENOTTY); + break; } -out: + module_put(THIS_MODULE); - return err; + return rc; } int osc_set_info_async(const struct lu_env *env, struct obd_export *exp, u32 keylen, void *key, u32 vallen, void *val, struct ptlrpc_request_set *set) { - struct ptlrpc_request *req; - struct obd_device *obd = exp->exp_obd; - struct obd_import *imp = class_exp2cliimp(exp); - char *tmp; - int rc; - ENTRY; - - OBD_FAIL_TIMEOUT(OBD_FAIL_OSC_SHUTDOWN, 10); - - if (KEY_IS(KEY_CHECKSUM)) { - if (vallen != sizeof(int)) - RETURN(-EINVAL); - exp->exp_obd->u.cli.cl_checksum = (*(int *)val) ? 1 : 0; - RETURN(0); - } - - if (KEY_IS(KEY_SPTLRPC_CONF)) { - sptlrpc_conf_client_adapt(obd); - RETURN(0); - } + struct ptlrpc_request *req; + struct obd_device *obd = exp->exp_obd; + struct obd_import *imp = class_exp2cliimp(exp); + char *tmp; + int rc; + ENTRY; - if (KEY_IS(KEY_FLUSH_CTX)) { - sptlrpc_import_flush_my_ctx(imp); - RETURN(0); - } + CFS_FAIL_TIMEOUT(OBD_FAIL_OSC_SHUTDOWN, 10); - if (KEY_IS(KEY_CACHE_SET)) { - struct client_obd *cli = &obd->u.cli; - - LASSERT(cli->cl_cache == NULL); /* only once */ - cli->cl_cache = (struct cl_client_cache *)val; - cl_cache_incref(cli->cl_cache); - cli->cl_lru_left = &cli->cl_cache->ccc_lru_left; + if (KEY_IS(KEY_CHECKSUM)) { + if (vallen != sizeof(int)) + RETURN(-EINVAL); + exp->exp_obd->u.cli.cl_checksum = (*(int *)val) ? 1 : 0; + RETURN(0); + } - /* add this osc into entity list */ - LASSERT(list_empty(&cli->cl_lru_osc)); - spin_lock(&cli->cl_cache->ccc_lru_lock); - list_add(&cli->cl_lru_osc, &cli->cl_cache->ccc_lru); - spin_unlock(&cli->cl_cache->ccc_lru_lock); + if (KEY_IS(KEY_SPTLRPC_CONF)) { + sptlrpc_conf_client_adapt(obd); + RETURN(0); + } + if (KEY_IS(KEY_FLUSH_CTX)) { + sptlrpc_import_flush_my_ctx(imp); RETURN(0); } @@ -2922,15 +3489,17 @@ int osc_set_info_async(const struct lu_env *env, struct obd_export *exp, RETURN(0); } - if (!set && !KEY_IS(KEY_GRANT_SHRINK)) - RETURN(-EINVAL); + if (!set && !KEY_IS(KEY_GRANT_SHRINK)) + RETURN(-EINVAL); - /* We pass all other commands directly to OST. Since nobody calls osc - methods directly and everybody is supposed to go through LOV, we - assume lov checked invalid values for us. - The only recognised values so far are evict_by_nid and mds_conn. - Even if something bad goes through, we'd get a -EINVAL from OST - anyway. */ + /* + * We pass all other commands directly to OST. Since nobody calls osc + * methods directly and everybody is supposed to go through LOV, we + * assume lov checked invalid values for us. + * The only recognised values so far are evict_by_nid and mds_conn. + * Even if something bad goes through, we'd get a -EINVAL from OST + * anyway. + */ req = ptlrpc_request_alloc(imp, KEY_IS(KEY_GRANT_SHRINK) ? &RQF_OST_SET_GRANT_INFO : @@ -2960,8 +3529,7 @@ int osc_set_info_async(const struct lu_env *env, struct obd_export *exp, struct osc_grant_args *aa; struct obdo *oa; - CLASSERT(sizeof(*aa) <= sizeof(req->rq_async_args)); - aa = ptlrpc_req_async_args(req); + aa = ptlrpc_req_async_args(aa, req); OBD_SLAB_ALLOC_PTR_GFP(oa, osc_obdo_kmem, GFP_NOFS); if (!oa) { ptlrpc_req_finished(req); @@ -2997,10 +3565,13 @@ int osc_reconnect(const struct lu_env *env, struct obd_export *exp, spin_lock(&cli->cl_loi_list_lock); grant = cli->cl_avail_grant + cli->cl_reserved_grant; - if (data->ocd_connect_flags & OBD_CONNECT_GRANT_PARAM) + if (data->ocd_connect_flags & OBD_CONNECT_GRANT_PARAM) { + /* restore ocd_grant_blkbits as client page bits */ + data->ocd_grant_blkbits = PAGE_SHIFT; grant += cli->cl_dirty_grant; - else + } else { grant += cli->cl_dirty_pages << PAGE_SHIFT; + } data->ocd_grant = grant ? : 2 * cli_brw_size(obd); lost_grant = cli->cl_lost_grant; cli->cl_lost_grant = 0; @@ -3073,38 +3644,40 @@ int osc_ldlm_resource_invalidate(struct cfs_hash *hs, struct cfs_hash_bd *bd, } EXPORT_SYMBOL(osc_ldlm_resource_invalidate); -static int osc_import_event(struct obd_device *obd, - struct obd_import *imp, - enum obd_import_event event) +static int osc_import_event(struct obd_device *obd, struct obd_import *imp, + enum obd_import_event event) { - struct client_obd *cli; - int rc = 0; - - ENTRY; - LASSERT(imp->imp_obd == obd); + struct client_obd *cli; + int rc = 0; - switch (event) { - case IMP_EVENT_DISCON: { - cli = &obd->u.cli; + ENTRY; + if (WARN_ON_ONCE(!obd || !imp || imp->imp_obd != obd)) + RETURN(-ENODEV); + + switch (event) { + case IMP_EVENT_DISCON: { + cli = &obd->u.cli; + if (!cli) + RETURN(-ENODEV); spin_lock(&cli->cl_loi_list_lock); cli->cl_avail_grant = 0; cli->cl_lost_grant = 0; spin_unlock(&cli->cl_loi_list_lock); - break; - } - case IMP_EVENT_INACTIVE: { + break; + } + case IMP_EVENT_INACTIVE: { rc = obd_notify_observer(obd, obd, OBD_NOTIFY_INACTIVE); - break; - } - case IMP_EVENT_INVALIDATE: { - struct ldlm_namespace *ns = obd->obd_namespace; - struct lu_env *env; - __u16 refcheck; + break; + } + case IMP_EVENT_INVALIDATE: { + struct ldlm_namespace *ns = obd->obd_namespace; + struct lu_env *env; + __u16 refcheck; ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY); - env = cl_env_get(&refcheck); - if (!IS_ERR(env)) { + env = cl_env_get(&refcheck); + if (!IS_ERR(env)) { osc_io_unplug(env, &obd->u.cli, NULL); cfs_hash_for_each_nolock(ns->ns_rs_hash, @@ -3113,40 +3686,43 @@ static int osc_import_event(struct obd_device *obd, cl_env_put(env, &refcheck); ldlm_namespace_cleanup(ns, LDLM_FL_LOCAL_ONLY); - } else - rc = PTR_ERR(env); - break; - } - case IMP_EVENT_ACTIVE: { + } else { + rc = PTR_ERR(env); + } + break; + } + case IMP_EVENT_ACTIVE: { rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVE); - break; - } - case IMP_EVENT_OCD: { - struct obd_connect_data *ocd = &imp->imp_connect_data; + break; + } + case IMP_EVENT_OCD: { + struct obd_connect_data *ocd = &imp->imp_connect_data; - if (ocd->ocd_connect_flags & OBD_CONNECT_GRANT) - osc_init_grant(&obd->u.cli, ocd); + if (ocd->ocd_connect_flags & OBD_CONNECT_GRANT) + osc_init_grant(&obd->u.cli, ocd); - /* See bug 7198 */ - if (ocd->ocd_connect_flags & OBD_CONNECT_REQPORTAL) - imp->imp_client->cli_request_portal =OST_REQUEST_PORTAL; + /* See bug 7198 */ + if (ocd->ocd_connect_flags & OBD_CONNECT_REQPORTAL) + imp->imp_client->cli_request_portal = + OST_REQUEST_PORTAL; rc = obd_notify_observer(obd, obd, OBD_NOTIFY_OCD); - break; - } - case IMP_EVENT_DEACTIVATE: { + break; + } + case IMP_EVENT_DEACTIVATE: { rc = obd_notify_observer(obd, obd, OBD_NOTIFY_DEACTIVATE); - break; - } - case IMP_EVENT_ACTIVATE: { + break; + } + case IMP_EVENT_ACTIVATE: { rc = obd_notify_observer(obd, obd, OBD_NOTIFY_ACTIVATE); - break; - } - default: - CERROR("Unknown import event %d\n", event); - LBUG(); - } - RETURN(rc); + break; + } + default: + CERROR("%s: Unknown import event %d: rc = %d\n", + obd->obd_name, event, -EINVAL); + LBUG(); + } + RETURN(rc); } /** @@ -3211,6 +3787,7 @@ int osc_setup_common(struct obd_device *obd, struct lustre_cfg *lcfg) GOTO(out_ptlrpcd_work, rc); cli->cl_grant_shrink_interval = GRANT_SHRINK_INTERVAL; + cli->cl_root_squash = 0; osc_update_next_shrink(cli); RETURN(rc); @@ -3328,7 +3905,7 @@ int osc_cleanup_common(struct obd_device *obd) /* lru cleanup */ if (cli->cl_cache != NULL) { - LASSERT(atomic_read(&cli->cl_cache->ccc_users) > 0); + LASSERT(refcount_read(&cli->cl_cache->ccc_users) > 0); spin_lock(&cli->cl_cache->ccc_lru_lock); list_del_init(&cli->cl_lru_osc); spin_unlock(&cli->cl_cache->ccc_lru_lock); @@ -3347,14 +3924,14 @@ int osc_cleanup_common(struct obd_device *obd) } EXPORT_SYMBOL(osc_cleanup_common); -static struct obd_ops osc_obd_ops = { +static const struct obd_ops osc_obd_ops = { .o_owner = THIS_MODULE, .o_setup = osc_setup, .o_precleanup = osc_precleanup, .o_cleanup = osc_cleanup_common, .o_add_conn = client_import_add_conn, .o_del_conn = client_import_del_conn, - .o_connect = client_connect_import, + .o_connect = client_connect_import, .o_reconnect = osc_reconnect, .o_disconnect = osc_disconnect, .o_statfs = osc_statfs, @@ -3369,36 +3946,38 @@ static struct obd_ops osc_obd_ops = { .o_quotactl = osc_quotactl, }; -static struct shrinker *osc_cache_shrinker; -struct list_head osc_shrink_list = LIST_HEAD_INIT(osc_shrink_list); +LIST_HEAD(osc_shrink_list); DEFINE_SPINLOCK(osc_shrink_lock); +bool osc_page_cache_shrink_enabled = true; -#ifndef HAVE_SHRINKER_COUNT -static int osc_cache_shrink(SHRINKER_ARGS(sc, nr_to_scan, gfp_mask)) +#ifdef HAVE_SHRINKER_COUNT +static struct ll_shrinker_ops osc_cache_sh_ops = { + .count_objects = osc_cache_shrink_count, + .scan_objects = osc_cache_shrink_scan, + .seeks = DEFAULT_SEEKS, +}; +#else +static int osc_cache_shrink(struct shrinker *shrinker, + struct shrink_control *sc) { - struct shrink_control scv = { - .nr_to_scan = shrink_param(sc, nr_to_scan), - .gfp_mask = shrink_param(sc, gfp_mask) - }; -#if !defined(HAVE_SHRINKER_WANT_SHRINK_PTR) && !defined(HAVE_SHRINK_CONTROL) - struct shrinker *shrinker = NULL; -#endif - - (void)osc_cache_shrink_scan(shrinker, &scv); + (void)osc_cache_shrink_scan(shrinker, sc); - return osc_cache_shrink_count(shrinker, &scv); + return osc_cache_shrink_count(shrinker, sc); } + +static struct ll_shrinker_ops osc_cache_sh_ops = { + .shrink = osc_cache_shrink, + .seeks = DEFAULT_SEEKS, +}; #endif +static struct shrinker *osc_cache_shrinker; + static int __init osc_init(void) { - bool enable_proc = true; - struct obd_type *type; unsigned int reqpool_size; unsigned int reqsize; int rc; - DEF_SHRINKER_VAR(osc_shvar, osc_cache_shrink, - osc_cache_shrink_count, osc_cache_shrink_scan); ENTRY; /* print an address of _any_ initialized kernel symbol from this @@ -3406,24 +3985,22 @@ static int __init osc_init(void) * symbols from modules.*/ CDEBUG(D_INFO, "Lustre OSC module (%p).\n", &osc_caches); - rc = lu_kmem_init(osc_caches); + rc = libcfs_setup(); if (rc) - RETURN(rc); - - type = class_search_type(LUSTRE_OSP_NAME); - if (type != NULL && type->typ_procsym != NULL) - enable_proc = false; + return rc; - rc = class_register_type(&osc_obd_ops, NULL, enable_proc, NULL, - LUSTRE_OSC_NAME, &osc_device_type); + rc = lu_kmem_init(osc_caches); if (rc) - GOTO(out_kmem, rc); + RETURN(rc); - osc_cache_shrinker = set_shrinker(DEFAULT_SEEKS, &osc_shvar); + osc_cache_shrinker = ll_shrinker_create(&osc_cache_sh_ops, 0, + "osc_cache"); + if (IS_ERR(osc_cache_shrinker)) + GOTO(out_kmem, rc = PTR_ERR(osc_cache_shrinker)); /* This is obviously too much memory, only prevent overflow here */ if (osc_reqpool_mem_max >= 1 << 12 || osc_reqpool_mem_max == 0) - GOTO(out_type, rc = -EINVAL); + GOTO(out_shrinker, rc = -EINVAL); reqpool_size = osc_reqpool_mem_max << 20; @@ -3444,18 +4021,25 @@ static int __init osc_init(void) ptlrpc_add_rqs_to_pool); if (osc_rq_pool == NULL) - GOTO(out_type, rc = -ENOMEM); + GOTO(out_shrinker, rc = -ENOMEM); rc = osc_start_grant_work(); if (rc != 0) GOTO(out_req_pool, rc); + rc = class_register_type(&osc_obd_ops, NULL, true, + LUSTRE_OSC_NAME, &osc_device_type); + if (rc < 0) + GOTO(out_stop_grant, rc); + RETURN(rc); +out_stop_grant: + osc_stop_grant_work(); out_req_pool: ptlrpc_free_rq_pool(osc_rq_pool); -out_type: - class_unregister_type(LUSTRE_OSC_NAME); +out_shrinker: + shrinker_free(osc_cache_shrinker); out_kmem: lu_kmem_fini(osc_caches); @@ -3464,11 +4048,11 @@ out_kmem: static void __exit osc_exit(void) { - osc_stop_grant_work(); - remove_shrinker(osc_cache_shrinker); class_unregister_type(LUSTRE_OSC_NAME); - lu_kmem_fini(osc_caches); ptlrpc_free_rq_pool(osc_rq_pool); + osc_stop_grant_work(); + shrinker_free(osc_cache_shrinker); + lu_kmem_fini(osc_caches); } MODULE_AUTHOR("OpenSFS, Inc. ");