Messages in this thread Patch in this message | | | From | Shiyang Ruan <> | Subject | [PATCH] xfs: fail dax mount if reflink is enabled on a partition | Date | Thu, 9 Jun 2022 22:34:35 +0800 |
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Failure notification is not supported on partitions. So, when we mount a reflink enabled xfs on a partition with dax option, let it fail with -EINVAL code.
Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> --- fs/xfs/xfs_super.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index 8495ef076ffc..a3c221841fa6 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -348,8 +348,10 @@ xfs_setup_dax_always( goto disable_dax; } - if (xfs_has_reflink(mp)) { - xfs_alert(mp, "DAX and reflink cannot be used together!"); + if (xfs_has_reflink(mp) && + bdev_is_partition(mp->m_ddev_targp->bt_bdev)) { + xfs_alert(mp, + "DAX and reflink cannot work with multi-partitions!"); return -EINVAL; } -- 2.36.1
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