From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com ([141.146.126.69]:28310 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751325AbdJRXAW (ORCPT ); Wed, 18 Oct 2017 19:00:22 -0400 From: Allison Henderson Subject: [PATCH 17/17] Add the parent pointer support to the superblock version 5. Date: Wed, 18 Oct 2017 15:55:33 -0700 Message-Id: <1508367333-3237-18-git-send-email-allison.henderson@oracle.com> In-Reply-To: <1508367333-3237-1-git-send-email-allison.henderson@oracle.com> References: <1508367333-3237-1-git-send-email-allison.henderson@oracle.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs@vger.kernel.org Cc: Allison Henderson , Mark Tinguely , Dave Chinner [dchinner: forward ported and cleaned up] [achender: rebased and added parent pointer attribute to compatible attributes mask] Signed-off-by: Mark Tinguely Signed-off-by: Dave Chinner Signed-off-by: Allison Henderson --- v2: remove unrelated type clean up in xfs_format.h Signed-off-by: Allison Henderson --- fs/xfs/libxfs/xfs_format.h | 7 +++++-- fs/xfs/libxfs/xfs_fs.h | 1 + fs/xfs/xfs_fsops.c | 4 +++- 3 files changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h index 121862a..f3e3132 100644 --- a/fs/xfs/libxfs/xfs_format.h +++ b/fs/xfs/libxfs/xfs_format.h @@ -459,10 +459,12 @@ xfs_sb_has_compat_feature( #define XFS_SB_FEAT_RO_COMPAT_FINOBT (1 << 0) /* free inode btree */ #define XFS_SB_FEAT_RO_COMPAT_RMAPBT (1 << 1) /* reverse map btree */ #define XFS_SB_FEAT_RO_COMPAT_REFLINK (1 << 2) /* reflinked files */ +#define XFS_SB_FEAT_RO_COMPAT_PARENT (1 << 3) /* parent inode ptr */ #define XFS_SB_FEAT_RO_COMPAT_ALL \ (XFS_SB_FEAT_RO_COMPAT_FINOBT | \ XFS_SB_FEAT_RO_COMPAT_RMAPBT | \ - XFS_SB_FEAT_RO_COMPAT_REFLINK) + XFS_SB_FEAT_RO_COMPAT_REFLINK| \ + XFS_SB_FEAT_RO_COMPAT_PARENT) #define XFS_SB_FEAT_RO_COMPAT_UNKNOWN ~XFS_SB_FEAT_RO_COMPAT_ALL static inline bool xfs_sb_has_ro_compat_feature( @@ -558,7 +560,8 @@ static inline bool xfs_sb_version_hasreflink(struct xfs_sb *sbp) static inline bool xfs_sb_version_hasparent(struct xfs_sb *sbp) { - return false; /* We'll enable this at the end of the set */ + return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5 && + (sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_PARENT)); } /* diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h index 8c61f21..b8108f8 100644 --- a/fs/xfs/libxfs/xfs_fs.h +++ b/fs/xfs/libxfs/xfs_fs.h @@ -222,6 +222,7 @@ typedef struct xfs_fsop_resblks { #define XFS_FSOP_GEOM_FLAGS_SPINODES 0x40000 /* sparse inode chunks */ #define XFS_FSOP_GEOM_FLAGS_RMAPBT 0x80000 /* reverse mapping btree */ #define XFS_FSOP_GEOM_FLAGS_REFLINK 0x100000 /* files can share blocks */ +#define XFS_FSOP_GEOM_FLAGS_PARENT 0x200000 /* parent pointers */ /* * Minimum and maximum sizes need for growth checks. diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c index 8f22fc5..9a0ce52 100644 --- a/fs/xfs/xfs_fsops.c +++ b/fs/xfs/xfs_fsops.c @@ -111,7 +111,9 @@ xfs_fs_geometry( (xfs_sb_version_hasrmapbt(&mp->m_sb) ? XFS_FSOP_GEOM_FLAGS_RMAPBT : 0) | (xfs_sb_version_hasreflink(&mp->m_sb) ? - XFS_FSOP_GEOM_FLAGS_REFLINK : 0); + XFS_FSOP_GEOM_FLAGS_REFLINK : 0) | + (xfs_sb_version_hasparent(&mp->m_sb) ? + XFS_FSOP_GEOM_FLAGS_PARENT : 0); geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ? mp->m_sb.sb_logsectsize : BBSIZE; geo->rtsectsize = mp->m_sb.sb_blocksize; -- 2.7.4