xfs: don't forbid setting dax flag on directories if device doesn't dax

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On a directory, the DAX flag is merely a hint that files created in the
directory should have the DAX flag set at creation time.  We don't care
if the underlying device supports DAX or not because directory metadata
are always cached in DRAM.  We don't care if new files get the flag even
if the device doesn't support DAX because we always check for DAX
support before setting the VFS flag (S_DAX).

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

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This commit is contained in:

Darrick J. Wong 2018-05-31 15:07:47 -07:00

parent 9f96cc958e

commit aaacdd257f

1 changed files with 7 additions and 2 deletions

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fs/xfs/xfs_ioctl.c

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