From patchwork Fri Mar 5 05:11:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Chinner X-Patchwork-Id: 12117755 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D3BFEC433E9 for ; Fri, 5 Mar 2021 05:12:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EDBE65004 for ; Fri, 5 Mar 2021 05:12:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229631AbhCEFM4 (ORCPT ); Fri, 5 Mar 2021 00:12:56 -0500 Received: from mail104.syd.optusnet.com.au ([211.29.132.246]:58877 "EHLO mail104.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229552AbhCEFMS (ORCPT ); Fri, 5 Mar 2021 00:12:18 -0500 Received: from dread.disaster.area (pa49-179-130-210.pa.nsw.optusnet.com.au [49.179.130.210]) by mail104.syd.optusnet.com.au (Postfix) with ESMTPS id E9320827B24 for ; Fri, 5 Mar 2021 16:11:51 +1100 (AEDT) Received: from discord.disaster.area ([192.168.253.110]) by dread.disaster.area with esmtp (Exim 4.92.3) (envelope-from ) id 1lI2kh-00FbpV-EK for linux-xfs@vger.kernel.org; Fri, 05 Mar 2021 16:11:51 +1100 Received: from dave by discord.disaster.area with local (Exim 4.94) (envelope-from ) id 1lI2kh-000laX-6W for linux-xfs@vger.kernel.org; Fri, 05 Mar 2021 16:11:51 +1100 From: Dave Chinner To: linux-xfs@vger.kernel.org Subject: [PATCH 37/45] xfs: track CIL ticket reservation in percpu structure Date: Fri, 5 Mar 2021 16:11:35 +1100 Message-Id: <20210305051143.182133-38-david@fromorbit.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210305051143.182133-1-david@fromorbit.com> References: <20210305051143.182133-1-david@fromorbit.com> MIME-Version: 1.0 X-Optus-CM-Score: 0 X-Optus-CM-Analysis: v=2.3 cv=YKPhNiOx c=1 sm=1 tr=0 cx=a_idp_d a=JD06eNgDs9tuHP7JIKoLzw==:117 a=JD06eNgDs9tuHP7JIKoLzw==:17 a=dESyimp9J3IA:10 a=20KFwNOVAAAA:8 a=OVMH6THyl8vKEaUu_IkA:9 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: Dave Chinner To get it out from under the cil spinlock. Signed-off-by: Dave Chinner --- fs/xfs/xfs_log_cil.c | 11 ++++++----- fs/xfs/xfs_log_priv.h | 2 +- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index 5519d112c1fd..a2f93bd7644b 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -492,6 +492,7 @@ xlog_cil_insert_items( * based on how close we are to the hard limit. */ cilpcp = get_cpu_ptr(cil->xc_pcp); + cilpcp->space_reserved += ctx_res; cilpcp->space_used += len; if (space_used >= XLOG_CIL_SPACE_LIMIT(log) || cilpcp->space_used > @@ -502,10 +503,6 @@ xlog_cil_insert_items( } put_cpu_ptr(cilpcp); - spin_lock(&cil->xc_cil_lock); - ctx->ticket->t_unit_res += ctx_res; - ctx->ticket->t_curr_res += ctx_res; - /* * If we've overrun the reservation, dump the tx details before we move * the log items. Shutdown is imminent... @@ -527,6 +524,7 @@ xlog_cil_insert_items( * We do this here so we only need to take the CIL lock once during * the transaction commit. */ + spin_lock(&cil->xc_cil_lock); list_for_each_entry(lip, &tp->t_items, li_trans) { /* Skip items which aren't dirty in this transaction. */ @@ -798,10 +796,13 @@ xlog_cil_push_work( down_write(&cil->xc_ctx_lock); - /* Reset the CIL pcp counters */ + /* Aggregate and reset the CIL pcp counters */ for_each_online_cpu(cpu) { cilpcp = per_cpu_ptr(cil->xc_pcp, cpu); + ctx->ticket->t_curr_res += cilpcp->space_reserved; cilpcp->space_used = 0; + cilpcp->space_reserved = 0; + } spin_lock(&cil->xc_push_lock); diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 4eb373357f26..278b9eaea582 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -236,7 +236,7 @@ struct xfs_cil_ctx { */ struct xlog_cil_pcp { uint32_t space_used; - uint32_t curr_res; + uint32_t space_reserved; struct list_head busy_extents; struct list_head log_items; };