From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-xfs@vger.kernel.org,
"Darrick J . Wong" <darrick.wong@oracle.com>,
Christoph Hellwig <hch@lst.de>
Subject: [PATCH 4.9 73/78] xfs: disable per-inode DAX flag
Date: Mon, 18 Sep 2017 11:12:22 +0200 [thread overview]
Message-ID: <20170918091137.531531480@linuxfoundation.org> (raw)
In-Reply-To: <20170918091126.077483037@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christoph Hellwig <hch@lst.de>
commit 742d84290739ae908f1b61b7d17ea382c8c0073a upstream.
Currently flag switching can be used to easily crash the kernel. Disable
the per-inode DAX flag until that is sorted out.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/xfs/xfs_ioctl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1005,11 +1005,12 @@ xfs_diflags_to_linux(
inode->i_flags |= S_NOATIME;
else
inode->i_flags &= ~S_NOATIME;
+#if 0 /* disabled until the flag switching races are sorted out */
if (xflags & FS_XFLAG_DAX)
inode->i_flags |= S_DAX;
else
inode->i_flags &= ~S_DAX;
-
+#endif
}
static int
next prev parent reply other threads:[~2017-09-18 9:17 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170918091126.077483037@linuxfoundation.org>
2017-09-18 9:11 ` [PATCH 4.9 40/78] xfs: dont crash on unexpected holes in dir/attr btrees Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 41/78] xfs: check _btree_check_block value Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 42/78] xfs: set firstfsb to NULLFSBLOCK before feeding it to _bmapi_write Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 43/78] xfs: check _alloc_read_agf buffer pointer before using Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 45/78] xfs: fix multi-AG deadlock in xfs_bunmapi Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 48/78] xfs: clear MS_ACTIVE after finishing log recovery Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 49/78] xfs: dont leak quotacheck dquots when cow recovery Greg Kroah-Hartman
2017-09-18 9:11 ` [PATCH 4.9 50/78] iomap: fix integer truncation issues in the zeroing and dirtying helpers Greg Kroah-Hartman
2017-09-18 9:12 ` [PATCH 4.9 53/78] xfs: remove xfs_trans_ail_delete_bulk Greg Kroah-Hartman
2017-09-18 9:12 ` Greg Kroah-Hartman [this message]
2017-09-18 9:12 ` [PATCH 4.9 75/78] xfs: dont set v3 xflags for v2 inodes Greg Kroah-Hartman
2017-09-18 9:12 ` [PATCH 4.9 76/78] xfs: open code end_buffer_async_write in xfs_finish_page_writeback Greg Kroah-Hartman
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