xfs: reject invalid flags combinations in XFS_IOC_ATTRLIST_BY_HANDLE

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While the flags field in the ABI and the on-disk format allows for
multiple namespace flags, an attribute can only exist in a single
namespace at a time. Hence asking to list attributes that exist
in multiple namespaces simultaneously is a logically invalid
request and will return no results. Reject this case early with
-EINVAL.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

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Christoph Hellwig 2020-02-26 17:30:28 -08:00 • committed by Darrick J. Wong

parent 211683b21d

commit 4d542e4c1e

2 changed files with 4 additions and 0 deletions

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fs/xfs/xfs_ioctl.c

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2

fs/xfs/xfs_ioctl32.c

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