From: Andriy Skulysh <[email protected]> Add rpc_cache for allocating ptlrpc_requests.
Lustre-change: http://review.whamcloud.com/6874 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2424 Signed-off-by: Andriy Skulysh <[email protected]> Signed-off-by: Niu Yawei <[email protected]> Reviewed-by: Andreas Dilger <[email protected]> Reviewed-by: Lai Siyao <[email protected]> Reviewed-by: Oleg Drokin <[email protected]> Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Andreas Dilger <[email protected]> --- drivers/staging/lustre/lustre/ptlrpc/client.c | 42 ++++++++++++++++---- drivers/staging/lustre/lustre/ptlrpc/events.c | 2 +- .../staging/lustre/lustre/ptlrpc/ptlrpc_internal.h | 4 ++ .../staging/lustre/lustre/ptlrpc/ptlrpc_module.c | 24 +++++++---- drivers/staging/lustre/lustre/ptlrpc/sec.c | 6 +-- drivers/staging/lustre/lustre/ptlrpc/service.c | 13 +++--- 6 files changed, 65 insertions(+), 26 deletions(-) diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index faa982a..9cdee5e 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -378,6 +378,34 @@ static int ptlrpc_at_recv_early_reply(struct ptlrpc_request *req) return rc; } +struct kmem_cache *request_cache; + +int ptlrpc_request_cache_init() +{ + request_cache = kmem_cache_create("ptlrpc_cache", + sizeof(struct ptlrpc_request), + 0, SLAB_HWCACHE_ALIGN, NULL); + return request_cache == NULL ? -ENOMEM : 0; +} + +void ptlrpc_request_cache_fini() +{ + kmem_cache_destroy(request_cache); +} + +struct ptlrpc_request *ptlrpc_request_cache_alloc(int flags) +{ + struct ptlrpc_request *req; + + OBD_SLAB_ALLOC_PTR_GFP(req, request_cache, flags); + return req; +} + +void ptlrpc_request_cache_free(struct ptlrpc_request *req) +{ + OBD_SLAB_FREE_PTR(req, request_cache); +} + /** * Wind down request pool \a pool. * Frees all requests from the pool too @@ -396,7 +424,7 @@ void ptlrpc_free_rq_pool(struct ptlrpc_request_pool *pool) LASSERT(req->rq_reqbuf); LASSERT(req->rq_reqbuf_len == pool->prp_rq_size); OBD_FREE_LARGE(req->rq_reqbuf, pool->prp_rq_size); - OBD_FREE(req, sizeof(*req)); + ptlrpc_request_cache_free(req); } spin_unlock(&pool->prp_lock); OBD_FREE(pool, sizeof(*pool)); @@ -426,12 +454,12 @@ void ptlrpc_add_rqs_to_pool(struct ptlrpc_request_pool *pool, int num_rq) struct lustre_msg *msg; spin_unlock(&pool->prp_lock); - OBD_ALLOC(req, sizeof(struct ptlrpc_request)); + req = ptlrpc_request_cache_alloc(__GFP_IO); if (!req) return; OBD_ALLOC_LARGE(msg, size); if (!msg) { - OBD_FREE(req, sizeof(struct ptlrpc_request)); + ptlrpc_request_cache_free(req); return; } req->rq_reqbuf = msg; @@ -667,7 +695,7 @@ struct ptlrpc_request *__ptlrpc_request_alloc(struct obd_import *imp, request = ptlrpc_prep_req_from_pool(pool); if (!request) - OBD_ALLOC_PTR(request); + request = ptlrpc_request_cache_alloc(__GFP_IO); if (request) { LASSERTF((unsigned long)imp > 0x1000, "%p", imp); @@ -738,7 +766,7 @@ void ptlrpc_request_free(struct ptlrpc_request *request) if (request->rq_pool) __ptlrpc_free_req_to_pool(request); else - OBD_FREE_PTR(request); + ptlrpc_request_cache_free(request); } EXPORT_SYMBOL(ptlrpc_request_free); @@ -2216,7 +2244,7 @@ static void __ptlrpc_free_req(struct ptlrpc_request *request, int locked) if (request->rq_pool) __ptlrpc_free_req_to_pool(request); else - OBD_FREE(request, sizeof(*request)); + ptlrpc_request_cache_free(request); } static int __ptlrpc_req_finished(struct ptlrpc_request *request, int locked); @@ -2934,7 +2962,7 @@ void *ptlrpcd_alloc_work(struct obd_import *imp, return ERR_PTR(-EINVAL); /* copy some code from deprecated fakereq. */ - OBD_ALLOC_PTR(req); + req = ptlrpc_request_cache_alloc(__GFP_IO); if (req == NULL) { CERROR("ptlrpc: run out of memory!\n"); return ERR_PTR(-ENOMEM); diff --git a/drivers/staging/lustre/lustre/ptlrpc/events.c b/drivers/staging/lustre/lustre/ptlrpc/events.c index 58d089c..f5e0d31 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/events.c +++ b/drivers/staging/lustre/lustre/ptlrpc/events.c @@ -307,7 +307,7 @@ void request_in_callback(lnet_event_t *ev) /* We moaned above already... */ return; } - OBD_ALLOC_GFP(req, sizeof(*req), ALLOC_ATOMIC_TRY); + req = ptlrpc_request_cache_alloc(ALLOC_ATOMIC_TRY); if (req == NULL) { CERROR("Can't allocate incoming request descriptor: " "Dropping %s RPC from %s\n", diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h index ab36347..fa54c5a 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h +++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h @@ -55,6 +55,10 @@ int ptlrpcd_start(int index, int max, const char *name, struct ptlrpcd_ctl *pc); /* client.c */ struct ptlrpc_bulk_desc *ptlrpc_new_bulk(unsigned npages, unsigned max_brw, unsigned type, unsigned portal); +int ptlrpc_request_cache_init(void); +void ptlrpc_request_cache_fini(void); +struct ptlrpc_request *ptlrpc_request_cache_alloc(int flags); +void ptlrpc_request_cache_free(struct ptlrpc_request *req); void ptlrpc_init_xid(void); /* events.c */ diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c index 419e634..938aaed 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c +++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c @@ -73,29 +73,34 @@ __init int ptlrpc_init(void) return rc; cleanup_phase = 1; + rc = ptlrpc_request_cache_init(); + if (rc) + GOTO(cleanup, rc); + cleanup_phase = 2; rc = ptlrpc_init_portals(); if (rc) GOTO(cleanup, rc); - cleanup_phase = 2; + + cleanup_phase = 3; rc = ptlrpc_connection_init(); if (rc) GOTO(cleanup, rc); - cleanup_phase = 3; + cleanup_phase = 4; ptlrpc_put_connection_superhack = ptlrpc_connection_put; rc = ptlrpc_start_pinger(); if (rc) GOTO(cleanup, rc); - cleanup_phase = 4; + cleanup_phase = 5; rc = ldlm_init(); if (rc) GOTO(cleanup, rc); - cleanup_phase = 5; + cleanup_phase = 6; rc = sptlrpc_init(); if (rc) GOTO(cleanup, rc); @@ -117,14 +122,16 @@ cleanup: ptlrpc_nrs_fini(); case 7: sptlrpc_fini(); - case 5: + case 6: ldlm_exit(); - case 4: + case 5: ptlrpc_stop_pinger(); - case 3: + case 4: ptlrpc_connection_fini(); - case 2: + case 3: ptlrpc_exit_portals(); + case 2: + ptlrpc_request_cache_fini(); case 1: ptlrpc_hr_fini(); req_layout_fini(); @@ -142,6 +149,7 @@ static void __exit ptlrpc_exit(void) ldlm_exit(); ptlrpc_stop_pinger(); ptlrpc_exit_portals(); + ptlrpc_request_cache_fini(); ptlrpc_hr_fini(); ptlrpc_connection_fini(); } diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c index 962b31d..7a10f73 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c @@ -904,7 +904,7 @@ int sptlrpc_import_check_ctx(struct obd_import *imp) return -EACCES; } - OBD_ALLOC_PTR(req); + req = ptlrpc_request_cache_alloc(__GFP_IO); if (!req) return -ENOMEM; @@ -920,7 +920,7 @@ int sptlrpc_import_check_ctx(struct obd_import *imp) rc = sptlrpc_req_refresh_ctx(req, 0); LASSERT(list_empty(&req->rq_ctx_chain)); sptlrpc_cli_ctx_put(req->rq_cli_ctx, 1); - OBD_FREE_PTR(req); + ptlrpc_request_cache_free(req); return rc; } @@ -1177,7 +1177,7 @@ void sptlrpc_cli_finish_early_reply(struct ptlrpc_request *early_req) sptlrpc_cli_ctx_put(early_req->rq_cli_ctx, 1); OBD_FREE_LARGE(early_req->rq_repbuf, early_req->rq_repbuf_len); - OBD_FREE_PTR(early_req); + ptlrpc_request_cache_free(early_req); } /************************************************** diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index 21de868..abd0b8d 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -842,7 +842,7 @@ static void ptlrpc_server_free_request(struct ptlrpc_request *req) /* NB request buffers use an embedded * req if the incoming req unlinked the * MD; this isn't one of them! */ - OBD_FREE(req, sizeof(*req)); + ptlrpc_request_cache_free(req); } } @@ -1306,14 +1306,12 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req) } newdl = cfs_time_current_sec() + at_get(&svcpt->scp_at_estimate); - OBD_ALLOC(reqcopy, sizeof(*reqcopy)); + reqcopy = ptlrpc_request_cache_alloc(__GFP_IO); if (reqcopy == NULL) return -ENOMEM; OBD_ALLOC_LARGE(reqmsg, req->rq_reqlen); - if (!reqmsg) { - OBD_FREE(reqcopy, sizeof(*reqcopy)); - return -ENOMEM; - } + if (!reqmsg) + GOTO(out_free, rc = -ENOMEM); *reqcopy = *req; reqcopy->rq_reply_state = NULL; @@ -1370,7 +1368,8 @@ out_put: out: sptlrpc_svc_ctx_decref(reqcopy); OBD_FREE_LARGE(reqmsg, req->rq_reqlen); - OBD_FREE(reqcopy, sizeof(*reqcopy)); +out_free: + ptlrpc_request_cache_free(reqcopy); return rc; } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
