From: Dave Chinner <david@fromorbit.com>
To: xfs@oss.sgi.com
Cc: ross.zwisler@linux.intel.com, jack@suse.cz
Subject: [PATCH 2/4] xfs: S_DAX is only for regular files
Date: Mon, 15 Feb 2016 16:22:12 +1100 [thread overview]
Message-ID: <1455513734-15192-3-git-send-email-david@fromorbit.com> (raw)
In-Reply-To: <1455513734-15192-1-git-send-email-david@fromorbit.com>
From: Dave Chinner <dchinner@redhat.com>
Only regular files can use DAX for data operations, so we should
restrict setting it on the VFS inode to regular files. Setting it on
metadata inodes may cause the VFS to do the wrong thing for such
inodes, so avoid potential problems by restricting the scope of the
flag to what we know is supported.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_iops.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 0d38b1d..9c984a0 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1185,8 +1185,9 @@ xfs_diflags_to_iflags(
inode->i_flags |= S_SYNC;
if (flags & XFS_DIFLAG_NOATIME)
inode->i_flags |= S_NOATIME;
- if (ip->i_mount->m_flags & XFS_MOUNT_DAX ||
- ip->i_d.di_flags2 & XFS_DIFLAG2_DAX)
+ if (S_ISREG(inode->i_mode) &&
+ (ip->i_mount->m_flags & XFS_MOUNT_DAX ||
+ ip->i_d.di_flags2 & XFS_DIFLAG2_DAX))
inode->i_flags |= S_DAX;
}
--
2.5.0
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next prev parent reply other threads:[~2016-02-15 5:22 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 5:22 [PATCH 0/4] xfs: fixes for XFS_DIFLAG2_DAX support Dave Chinner
2016-02-15 5:22 ` [PATCH 1/4] xfs: XFS_DIFLAG_DAX is only for regular files or directories Dave Chinner
2016-02-15 5:22 ` Dave Chinner [this message]
2016-02-15 5:22 ` [PATCH 3/4] xfs: dynamically switch modes when XFS_DIFLAG2_DAX is set/cleared Dave Chinner
2016-02-17 7:31 ` [PATCH 3/4 v2] " Dave Chinner
2016-02-17 20:57 ` Ross Zwisler
2016-02-15 5:22 ` [PATCH 4/4] xfs: XFS_DIFLAG2_DAX limited by PAGE_SIZE Dave Chinner
2016-02-16 0:12 ` Eric Sandeen
2016-02-16 0:39 ` Dave Chinner
2016-02-16 0:54 ` Eric Sandeen
2016-02-16 23:53 ` [PATCH 0/4] xfs: fixes for XFS_DIFLAG2_DAX support Ross Zwisler
2016-02-17 0:23 ` Dave Chinner
2016-02-17 20:04 ` Brian Foster
2016-02-17 22:56 ` Ross Zwisler
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