From mboxrd@z Thu Jan 1 00:00:00 1970 From: zwu.kernel@gmail.com Subject: [PATCH v4 10/10] VFS hot tracking, xfs: Add hot tracking support Date: Mon, 5 Aug 2013 22:50:00 +0800 Message-ID: <1375714200-23944-11-git-send-email-zwu.kernel@gmail.com> References: <1375714200-23944-1-git-send-email-zwu.kernel@gmail.com> Cc: linux-fsdevel@vger.kernel.org, sekharan@us.ibm.com, Dave Chinner , Zhi Yong Wu To: viro@zeniv.linux.org.uk Return-path: Received: from e7.ny.us.ibm.com ([32.97.182.137]:49386 "EHLO e7.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753750Ab3HEOt7 (ORCPT ); Mon, 5 Aug 2013 10:49:59 -0400 Received: from /spool/local by e7.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 5 Aug 2013 10:49:58 -0400 Received: from d01relay01.pok.ibm.com (d01relay01.pok.ibm.com [9.56.227.233]) by d01dlp02.pok.ibm.com (Postfix) with ESMTP id 483C96E8044 for ; Mon, 5 Aug 2013 10:49:49 -0400 (EDT) Received: from d01av02.pok.ibm.com (d01av02.pok.ibm.com [9.56.224.216]) by d01relay01.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id r75Ensll109500 for ; Mon, 5 Aug 2013 10:49:54 -0400 Received: from d01av02.pok.ibm.com (loopback [127.0.0.1]) by d01av02.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id r75EnmuK008468 for ; Mon, 5 Aug 2013 11:49:51 -0300 In-Reply-To: <1375714200-23944-1-git-send-email-zwu.kernel@gmail.com> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: From: Dave Chinner Connect up the VFS hot tracking support so XFS filesystem can make use of it. Signed-off-by: Dave Chinner Signed-off-by: Zhi Yong Wu --- fs/xfs/xfs_mount.h | 1 + fs/xfs/xfs_super.c | 18 ++++++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 4e374d4..948a070 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -222,6 +222,7 @@ typedef struct xfs_mount { #define XFS_MOUNT_WSYNC (1ULL << 0) /* for nfs - all metadata ops must be synchronous except for space allocations */ +#define XFS_MOUNT_HOTTRACK (1ULL << 1) /* hot tracking */ #define XFS_MOUNT_WAS_CLEAN (1ULL << 3) #define XFS_MOUNT_FS_SHUTDOWN (1ULL << 4) /* atomic stop of all filesystem operations, typically for diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 1d68ffc..e3ea98b 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -62,6 +62,7 @@ #include #include #include +#include static const struct super_operations xfs_super_operations; static kmem_zone_t *xfs_ioend_zone; @@ -115,6 +116,7 @@ mempool_t *xfs_ioend_pool; #define MNTOPT_NODELAYLOG "nodelaylog" /* Delayed logging disabled */ #define MNTOPT_DISCARD "discard" /* Discard unused blocks */ #define MNTOPT_NODISCARD "nodiscard" /* Do not discard unused blocks */ +#define MNTOPT_HOTTRACK "hot_track" /* hot tracking */ /* * Table driven mount option parser. @@ -381,6 +383,8 @@ xfs_parseargs( mp->m_flags |= XFS_MOUNT_DISCARD; } else if (!strcmp(this_char, MNTOPT_NODISCARD)) { mp->m_flags &= ~XFS_MOUNT_DISCARD; + } else if (!strcmp(this_char, MNTOPT_HOTTRACK)) { + mp->m_flags |= XFS_MOUNT_HOTTRACK; } else if (!strcmp(this_char, "ihashsize")) { xfs_warn(mp, "ihashsize no longer used, option is deprecated."); @@ -510,6 +514,7 @@ xfs_showargs( { XFS_MOUNT_GRPID, "," MNTOPT_GRPID }, { XFS_MOUNT_DISCARD, "," MNTOPT_DISCARD }, { XFS_MOUNT_SMALL_INUMS, "," MNTOPT_32BITINODE }, + { XFS_MOUNT_HOTTRACK, "," MNTOPT_HOTTRACK }, { 0, NULL } }; static struct proc_xfs_info xfs_info_unset[] = { @@ -1053,6 +1058,9 @@ xfs_fs_put_super( { struct xfs_mount *mp = XFS_M(sb); + if (mp->m_flags & XFS_MOUNT_HOTTRACK) + hot_track_exit(sb); + xfs_filestream_unmount(mp); xfs_unmountfs(mp); @@ -1500,8 +1508,18 @@ xfs_fs_fill_super( goto out_unmount; } + if (mp->m_flags & XFS_MOUNT_HOTTRACK) { + error = hot_track_init(sb); + if (error) + goto out_free_root; + } + return 0; + out_free_root: + dput(sb->s_root); + sb->s_root = NULL; + out_filestream_unmount: xfs_filestream_unmount(mp); out_free_sb: -- 1.7.11.7