From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCA0DC433FE for ; Tue, 9 Nov 2021 01:51:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDA5661181 for ; Tue, 9 Nov 2021 01:51:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237225AbhKIBxq (ORCPT ); Mon, 8 Nov 2021 20:53:46 -0500 Received: from mail104.syd.optusnet.com.au ([211.29.132.246]:49241 "EHLO mail104.syd.optusnet.com.au" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238619AbhKIBxq (ORCPT ); Mon, 8 Nov 2021 20:53:46 -0500 Received: from dread.disaster.area (pa49-195-103-97.pa.nsw.optusnet.com.au [49.195.103.97]) by mail104.syd.optusnet.com.au (Postfix) with ESMTPS id 4C2CB885D59 for ; Tue, 9 Nov 2021 12:50:59 +1100 (AEDT) Received: from discord.disaster.area ([192.168.253.110]) by dread.disaster.area with esmtp (Exim 4.92.3) (envelope-from ) id 1mkGHq-006ZYa-Kt for linux-xfs@vger.kernel.org; Tue, 09 Nov 2021 12:50:58 +1100 Received: from dave by discord.disaster.area with local (Exim 4.95) (envelope-from ) id 1mkGHq-006UdV-Je for linux-xfs@vger.kernel.org; Tue, 09 Nov 2021 12:50:58 +1100 From: Dave Chinner To: linux-xfs@vger.kernel.org Subject: [PATCH 16/16] xfs: CIL context doesn't need to count iovecs Date: Tue, 9 Nov 2021 12:50:55 +1100 Message-Id: <20211109015055.1547604-17-david@fromorbit.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211109015055.1547604-1-david@fromorbit.com> References: <20211109015055.1547604-1-david@fromorbit.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Optus-CM-Score: 0 X-Optus-CM-Analysis: v=2.4 cv=VuxAv86n c=1 sm=1 tr=0 ts=6189d403 a=fP9RlOTWD4uZJjPSFnn6Ew==:117 a=fP9RlOTWD4uZJjPSFnn6Ew==:17 a=vIxV3rELxO4A:10 a=20KFwNOVAAAA:8 a=VwQbUJbxAAAA:8 a=FbNIXIO7bxCRj49lnCIA:9 a=AjGcO6oz07-iQ99wixmX:22 Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org From: Dave Chinner Now that we account for log opheaders in the log item formatting code, we don't actually use the aggregated count of log iovecs in the CIL for anything. Remove it and the tracking code that calculates it. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong --- fs/xfs/xfs_log_cil.c | 22 ++++++---------------- fs/xfs/xfs_log_priv.h | 1 - 2 files changed, 6 insertions(+), 17 deletions(-) diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index a31fb47c60f8..b8d8fc474dd1 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -260,22 +260,18 @@ xlog_cil_alloc_shadow_bufs( /* * Prepare the log item for insertion into the CIL. Calculate the difference in - * log space and vectors it will consume, and if it is a new item pin it as - * well. + * log space it will consume, and if it is a new item pin it as well. */ STATIC void xfs_cil_prepare_item( struct xlog *log, struct xfs_log_vec *lv, struct xfs_log_vec *old_lv, - int *diff_len, - int *diff_iovecs) + int *diff_len) { /* Account for the new LV being passed in */ - if (lv->lv_buf_len != XFS_LOG_VEC_ORDERED) { + if (lv->lv_buf_len != XFS_LOG_VEC_ORDERED) *diff_len += lv->lv_bytes; - *diff_iovecs += lv->lv_niovecs; - } /* * If there is no old LV, this is the first time we've seen the item in @@ -292,7 +288,6 @@ xfs_cil_prepare_item( ASSERT(lv->lv_buf_len != XFS_LOG_VEC_ORDERED); *diff_len -= old_lv->lv_bytes; - *diff_iovecs -= old_lv->lv_niovecs; lv->lv_item->li_lv_shadow = old_lv; } @@ -341,12 +336,10 @@ static void xlog_cil_insert_format_items( struct xlog *log, struct xfs_trans *tp, - int *diff_len, - int *diff_iovecs) + int *diff_len) { struct xfs_log_item *lip; - /* Bail out if we didn't find a log item. */ if (list_empty(&tp->t_items)) { ASSERT(0); @@ -389,7 +382,6 @@ xlog_cil_insert_format_items( * set the item up as though it is a new insertion so * that the space reservation accounting is correct. */ - *diff_iovecs -= lv->lv_niovecs; *diff_len -= lv->lv_bytes; /* Ensure the lv is set up according to ->iop_size */ @@ -414,7 +406,7 @@ xlog_cil_insert_format_items( ASSERT(IS_ALIGNED((unsigned long)lv->lv_buf, sizeof(uint64_t))); lip->li_ops->iop_format(lip, lv); insert: - xfs_cil_prepare_item(log, lv, old_lv, diff_len, diff_iovecs); + xfs_cil_prepare_item(log, lv, old_lv, diff_len); } } @@ -434,7 +426,6 @@ xlog_cil_insert_items( struct xfs_cil_ctx *ctx = cil->xc_ctx; struct xfs_log_item *lip; int len = 0; - int diff_iovecs = 0; int iclog_space; int iovhdr_res = 0, split_res = 0, ctx_res = 0; @@ -444,7 +435,7 @@ xlog_cil_insert_items( * We can do this safely because the context can't checkpoint until we * are done so it doesn't matter exactly how we update the CIL. */ - xlog_cil_insert_format_items(log, tp, &len, &diff_iovecs); + xlog_cil_insert_format_items(log, tp, &len); spin_lock(&cil->xc_cil_lock); @@ -479,7 +470,6 @@ xlog_cil_insert_items( } tp->t_ticket->t_curr_res -= len; ctx->space_used += len; - ctx->nvecs += diff_iovecs; /* * If we've overrun the reservation, dump the tx details before we move diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 3008c0c884c7..a3981567c42a 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -221,7 +221,6 @@ struct xfs_cil_ctx { xfs_lsn_t commit_lsn; /* chkpt commit record lsn */ struct xlog_in_core *commit_iclog; struct xlog_ticket *ticket; /* chkpt ticket */ - int nvecs; /* number of regions */ int space_used; /* aggregate size of regions */ struct list_head busy_extents; /* busy extents in chkpt */ struct xfs_log_vec *lv_chain; /* logvecs being pushed */ -- 2.33.0