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 X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 07948C35677 for ; Thu, 27 Feb 2020 14:48:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C8C17246A9 for ; Thu, 27 Feb 2020 14:48:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ehGvLIII" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731701AbgB0OsQ (ORCPT ); Thu, 27 Feb 2020 09:48:16 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:54557 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729970AbgB0Nn1 (ORCPT ); Thu, 27 Feb 2020 08:43:27 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1582811006; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AoQqqY3wn4EHZR/Bdqhd1nQQjld+kUALV2aa+N73378=; b=ehGvLIIIoXVv75ahgvLP/Uw+pQiaIFwn3JH7I+oZ/GvYBRuH5VUw9ArQuMem2fEZL6wwBN w0+Gq1luiarBD0Qv4wpNmImIYpRc1WUgViyOXlInkjcbc4gXl0hSiXaVEFYfrK2U9RiSjL wuAJT17rYH2tkgjdAfDhK6W/efoWTzc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-269-sKeIUis6NL6ckMWEjn1IwA-1; Thu, 27 Feb 2020 08:43:24 -0500 X-MC-Unique: sKeIUis6NL6ckMWEjn1IwA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 472931005512 for ; Thu, 27 Feb 2020 13:43:23 +0000 (UTC) Received: from bfoster.bos.redhat.com (dhcp-41-2.bos.redhat.com [10.18.41.2]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0DBB65DA7C for ; Thu, 27 Feb 2020 13:43:22 +0000 (UTC) From: Brian Foster To: linux-xfs@vger.kernel.org Subject: [RFC v5 PATCH 4/9] xfs: automatic relogging item management Date: Thu, 27 Feb 2020 08:43:16 -0500 Message-Id: <20200227134321.7238-5-bfoster@redhat.com> In-Reply-To: <20200227134321.7238-1-bfoster@redhat.com> References: <20200227134321.7238-1-bfoster@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Content-Transfer-Encoding: quoted-printable Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org As implemented by the previous patch, relogging can be enabled on any item via a relog enabled transaction (which holds a reference to an active relog ticket). Add a couple log item flags to track relog state of an arbitrary log item. The item holds a reference to the global relog ticket when relogging is enabled and releases the reference when relogging is disabled. Signed-off-by: Brian Foster --- fs/xfs/xfs_trace.h | 2 ++ fs/xfs/xfs_trans.c | 36 ++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_trans.h | 6 +++++- fs/xfs/xfs_trans_priv.h | 2 ++ 4 files changed, 45 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index a86be7f807ee..a066617ec54d 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -1063,6 +1063,8 @@ DEFINE_LOG_ITEM_EVENT(xfs_ail_push); DEFINE_LOG_ITEM_EVENT(xfs_ail_pinned); DEFINE_LOG_ITEM_EVENT(xfs_ail_locked); DEFINE_LOG_ITEM_EVENT(xfs_ail_flushing); +DEFINE_LOG_ITEM_EVENT(xfs_relog_item); +DEFINE_LOG_ITEM_EVENT(xfs_relog_item_cancel); =20 DECLARE_EVENT_CLASS(xfs_ail_class, TP_PROTO(struct xfs_log_item *lip, xfs_lsn_t old_lsn, xfs_lsn_t new_lsn= ), diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index 8ac05ed8deda..f7f2411ead4e 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -778,6 +778,41 @@ xfs_trans_del_item( list_del_init(&lip->li_trans); } =20 +void +xfs_trans_relog_item( + struct xfs_log_item *lip) +{ + if (!test_and_set_bit(XFS_LI_RELOG, &lip->li_flags)) { + xfs_trans_ail_relog_get(lip->li_mountp); + trace_xfs_relog_item(lip); + } +} + +void +xfs_trans_relog_item_cancel( + struct xfs_log_item *lip, + bool drain) /* wait for relogging to cease */ +{ + struct xfs_mount *mp =3D lip->li_mountp; + + if (!test_and_clear_bit(XFS_LI_RELOG, &lip->li_flags)) + return; + xfs_trans_ail_relog_put(lip->li_mountp); + trace_xfs_relog_item_cancel(lip); + + if (!drain) + return; + + /* + * Some operations might require relog activity to cease before they ca= n + * proceed. For example, an operation must wait before including a + * non-lockable log item (i.e. intent) in another transaction. + */ + while (wait_on_bit_timeout(&lip->li_flags, XFS_LI_RELOGGED, + TASK_UNINTERRUPTIBLE, HZ)) + xfs_log_force(mp, XFS_LOG_SYNC); +} + /* Detach and unlock all of the items in a transaction */ static void xfs_trans_free_items( @@ -863,6 +898,7 @@ xfs_trans_committed_bulk( =20 if (aborted) set_bit(XFS_LI_ABORTED, &lip->li_flags); + clear_and_wake_up_bit(XFS_LI_RELOGGED, &lip->li_flags); =20 if (lip->li_ops->flags & XFS_ITEM_RELEASE_WHEN_COMMITTED) { lip->li_ops->iop_release(lip); diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h index a032989943bd..fc4c25b6eee4 100644 --- a/fs/xfs/xfs_trans.h +++ b/fs/xfs/xfs_trans.h @@ -59,12 +59,16 @@ struct xfs_log_item { #define XFS_LI_ABORTED 1 #define XFS_LI_FAILED 2 #define XFS_LI_DIRTY 3 /* log item dirty in transaction */ +#define XFS_LI_RELOG 4 /* automatically relog item */ +#define XFS_LI_RELOGGED 5 /* item relogged (not committed) */ =20 #define XFS_LI_FLAGS \ { (1 << XFS_LI_IN_AIL), "IN_AIL" }, \ { (1 << XFS_LI_ABORTED), "ABORTED" }, \ { (1 << XFS_LI_FAILED), "FAILED" }, \ - { (1 << XFS_LI_DIRTY), "DIRTY" } + { (1 << XFS_LI_DIRTY), "DIRTY" }, \ + { (1 << XFS_LI_RELOG), "RELOG" }, \ + { (1 << XFS_LI_RELOGGED), "RELOGGED" } =20 struct xfs_item_ops { unsigned flags; diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h index 839df6559b9f..d1edec1cb8ad 100644 --- a/fs/xfs/xfs_trans_priv.h +++ b/fs/xfs/xfs_trans_priv.h @@ -16,6 +16,8 @@ struct xfs_log_vec; void xfs_trans_init(struct xfs_mount *); void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *); void xfs_trans_del_item(struct xfs_log_item *); +void xfs_trans_relog_item(struct xfs_log_item *); +void xfs_trans_relog_item_cancel(struct xfs_log_item *, bool); void xfs_trans_unreserve_and_mod_sb(struct xfs_trans *tp); =20 void xfs_trans_committed_bulk(struct xfs_ail *ailp, struct xfs_log_vec *= lv, --=20 2.21.1