From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:39847 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751692AbdJCUnX (ORCPT ); Tue, 3 Oct 2017 16:43:23 -0400 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v93KhNAY026230 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 3 Oct 2017 20:43:23 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id v93KhNMZ007695 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Tue, 3 Oct 2017 20:43:23 GMT Received: from abhmp0019.oracle.com (abhmp0019.oracle.com [141.146.116.25]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id v93KhM4k005140 for ; Tue, 3 Oct 2017 20:43:22 GMT Subject: [PATCH 24/25] xfs: scrub realtime bitmap/summary From: "Darrick J. Wong" Date: Tue, 03 Oct 2017 13:43:21 -0700 Message-ID: <150706340125.19351.13494381752104107446.stgit@magnolia> In-Reply-To: <150706324963.19351.17715069858921948692.stgit@magnolia> References: <150706324963.19351.17715069858921948692.stgit@magnolia> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: darrick.wong@oracle.com Cc: linux-xfs@vger.kernel.org From: Darrick J. Wong Perform simple tests of the realtime bitmap and summary. Signed-off-by: Darrick J. Wong --- fs/xfs/Makefile | 2 + fs/xfs/libxfs/xfs_format.h | 5 ++ fs/xfs/libxfs/xfs_fs.h | 4 +- fs/xfs/scrub/common.h | 1 fs/xfs/scrub/rtbitmap.c | 98 ++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/scrub/scrub.c | 15 +++++++ fs/xfs/scrub/scrub.h | 2 + 7 files changed, 126 insertions(+), 1 deletion(-) create mode 100644 fs/xfs/scrub/rtbitmap.c diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile index 2193a54..9ce581e 100644 --- a/fs/xfs/Makefile +++ b/fs/xfs/Makefile @@ -162,4 +162,6 @@ xfs-y += $(addprefix scrub/, \ scrub.o \ symlink.o \ ) + +xfs-$(CONFIG_XFS_RT) += scrub/rtbitmap.o endif diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 154c3dd..d4d9bef 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -315,6 +315,11 @@ static inline bool xfs_sb_good_version(struct xfs_sb *sbp) return false; } +static inline bool xfs_sb_version_hasrealtime(struct xfs_sb *sbp) +{ + return sbp->sb_rblocks > 0; +} + /* * Detect a mismatched features2 field. Older kernels read/wrote * this into the wrong slot, so to be safe we keep them in sync. diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index 7444094..f8bac92 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -502,9 +502,11 @@ struct xfs_scrub_metadata { #define XFS_SCRUB_TYPE_XATTR 16 /* extended attribute */ #define XFS_SCRUB_TYPE_SYMLINK 17 /* symbolic link */ #define XFS_SCRUB_TYPE_PARENT 18 /* parent pointers */ +#define XFS_SCRUB_TYPE_RTBITMAP 19 /* realtime bitmap */ +#define XFS_SCRUB_TYPE_RTSUM 20 /* realtime summary */ /* Number of scrub subcommands. */ -#define XFS_SCRUB_TYPE_NR 19 +#define XFS_SCRUB_TYPE_NR 21 /* i: Repair this metadata. */ #define XFS_SCRUB_IFLAG_REPAIR (1 << 0) diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h index bde5add..f5f8d70 100644 --- a/fs/xfs/scrub/common.h +++ b/fs/xfs/scrub/common.h @@ -102,6 +102,7 @@ int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc, struct xfs_inode *ip); int xfs_scrub_setup_parent(struct xfs_scrub_context *sc, struct xfs_inode *ip); +int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip); void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa); int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno, diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c new file mode 100644 index 0000000..e15f8f3 --- /dev/null +++ b/fs/xfs/scrub/rtbitmap.c @@ -0,0 +1,98 @@ +/* + * Copyright (C) 2017 Oracle. All Rights Reserved. + * + * Author: Darrick J. Wong + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include "xfs.h" +#include "xfs_fs.h" +#include "xfs_shared.h" +#include "xfs_format.h" +#include "xfs_trans_resv.h" +#include "xfs_mount.h" +#include "xfs_defer.h" +#include "xfs_btree.h" +#include "xfs_bit.h" +#include "xfs_log_format.h" +#include "xfs_trans.h" +#include "xfs_sb.h" +#include "xfs_alloc.h" +#include "xfs_rtalloc.h" +#include "xfs_inode.h" +#include "scrub/xfs_scrub.h" +#include "scrub/scrub.h" +#include "scrub/common.h" +#include "scrub/trace.h" + +/* Set us up with the realtime metadata locked. */ +int +xfs_scrub_setup_rt( + struct xfs_scrub_context *sc, + struct xfs_inode *ip) +{ + struct xfs_mount *mp = sc->mp; + int lockmode; + int error = 0; + + if (sc->sm->sm_agno || sc->sm->sm_ino || sc->sm->sm_gen) + return -EINVAL; + + error = xfs_scrub_setup_fs(sc, ip); + if (error) + return error; + + lockmode = XFS_ILOCK_EXCL | XFS_ILOCK_RTBITMAP; + xfs_ilock(mp->m_rbmip, lockmode); + xfs_trans_ijoin(sc->tp, mp->m_rbmip, lockmode); + + return 0; +} + +/* Realtime bitmap. */ + +/* Scrub a free extent record from the realtime bitmap. */ +STATIC int +xfs_scrub_rtbitmap_helper( + struct xfs_trans *tp, + struct xfs_rtalloc_rec *rec, + void *priv) +{ + return 0; +} + +/* Scrub the realtime bitmap. */ +int +xfs_scrub_rtbitmap( + struct xfs_scrub_context *sc) +{ + int error; + + error = xfs_rtalloc_query_all(sc->tp, xfs_scrub_rtbitmap_helper, NULL); + if (!xfs_scrub_fblock_op_ok(sc, XFS_DATA_FORK, 0, &error)) + goto out; + +out: + return error; +} + +/* Scrub the realtime summary. */ +int +xfs_scrub_rtsummary( + struct xfs_scrub_context *sc) +{ + /* XXX: implement this some day */ + return -ENOENT; +} diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c index 5d57a5b..348e3c3 100644 --- a/fs/xfs/scrub/scrub.c +++ b/fs/xfs/scrub/scrub.c @@ -241,6 +241,21 @@ static const struct xfs_scrub_meta_ops meta_scrub_ops[] = { .setup = xfs_scrub_setup_parent, .scrub = xfs_scrub_parent, }, +#ifdef CONFIG_XFS_RT + { /* realtime bitmap */ + .setup = xfs_scrub_setup_rt, + .scrub = xfs_scrub_rtbitmap, + .has = xfs_sb_version_hasrealtime, + }, + { /* realtime summary */ + .setup = xfs_scrub_setup_rt, + .scrub = xfs_scrub_rtsummary, + .has = xfs_sb_version_hasrealtime, + }, +#else + { NULL }, + { NULL }, +#endif }; /* This isn't a stable feature, warn once per day. */ diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h index a264810..329c169 100644 --- a/fs/xfs/scrub/scrub.h +++ b/fs/xfs/scrub/scrub.h @@ -87,5 +87,7 @@ int xfs_scrub_directory(struct xfs_scrub_context *sc); int xfs_scrub_xattr(struct xfs_scrub_context *sc); int xfs_scrub_symlink(struct xfs_scrub_context *sc); int xfs_scrub_parent(struct xfs_scrub_context *sc); +int xfs_scrub_rtbitmap(struct xfs_scrub_context *sc); +int xfs_scrub_rtsummary(struct xfs_scrub_context *sc); #endif /* __XFS_SCRUB_SCRUB_H__ */