From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753797AbcD0WYu (ORCPT ); Wed, 27 Apr 2016 18:24:50 -0400 Received: from smtp2.ccs.ornl.gov ([160.91.199.39]:47830 "EHLO smtp2.ccs.ornl.gov" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753083AbcD0WVT (ORCPT ); Wed, 27 Apr 2016 18:21:19 -0400 From: James Simmons To: Greg Kroah-Hartman , devel@driverdev.osuosl.org, Andreas Dilger , Oleg Drokin Cc: Linux Kernel Mailing List , Lustre Development List , Wang Di , James Simmons Subject: [PATCH 03/15] staging: lustre: obdclass: add LCT_SERVER_SESSION for server session Date: Wed, 27 Apr 2016 18:20:55 -0400 Message-Id: <1461795667-29035-4-git-send-email-jsimmons@infradead.org> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1461795667-29035-1-git-send-email-jsimmons@infradead.org> References: <1461795667-29035-1-git-send-email-jsimmons@infradead.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Wang Di Add LCT_SERVER_SESSION for server session, and separate the server session flag from LCT_SESSION, so to avoid allocating session info for client stack for each server request, if client and server are on the same node. Signed-off-by: Wang Di Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3806 Reviewed-on: http://review.whamcloud.com/7412 Reviewed-by: John L. Hammond Reviewed-by: Mike Pershin Reviewed-by: Oleg Drokin Signed-off-by: James Simmons --- drivers/staging/lustre/lustre/include/lu_object.h | 4 ++++ drivers/staging/lustre/lustre/include/obd_class.h | 2 +- drivers/staging/lustre/lustre/ptlrpc/service.c | 3 ++- 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h index b5b0c81..a27e76f 100644 --- a/drivers/staging/lustre/lustre/include/lu_object.h +++ b/drivers/staging/lustre/lustre/include/lu_object.h @@ -1006,6 +1006,10 @@ enum lu_context_tag { */ LCT_LOCAL = 1 << 7, /** + * session for server thread + **/ + LCT_SERVER_SESSION = BIT(8), + /** * Set when at least one of keys, having values in this context has * non-NULL lu_context_key::lct_exit() method. This is used to * optimize lu_context_exit() call. diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 40f7a23..32863bc 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -477,7 +477,7 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) struct lu_context session_ctx; struct lu_env env; - lu_context_init(&session_ctx, LCT_SESSION); + lu_context_init(&session_ctx, LCT_SESSION | LCT_SERVER_SESSION); session_ctx.lc_thread = NULL; lu_context_enter(&session_ctx); diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c index 1bbd1d3..fc2632f 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/service.c +++ b/drivers/staging/lustre/lustre/ptlrpc/service.c @@ -1649,7 +1649,8 @@ ptlrpc_server_handle_request(struct ptlrpc_service_part *svcpt, at_get(&svcpt->scp_at_estimate)); } - rc = lu_context_init(&request->rq_session, LCT_SESSION | LCT_NOREF); + rc = lu_context_init(&request->rq_session, LCT_SERVER_SESSION | + LCT_NOREF); if (rc) { CERROR("Failure to initialize session: %d\n", rc); goto out_req; -- 1.7.1