Re: [PATCH review 07/16] xfs: Update ioctl(XFS_IOC_FREE_EOFBLOCKS)to handle callers in any userspace

From: Dave Chinner
Date: Mon Feb 18 2013 - 20:48:48 EST

On Sun, Feb 17, 2013 at 05:11:00PM -0800, Eric W. Biederman wrote:
> From: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
> - Modify the ioctl to convert from uids, gid, and projids in the
> current user namespace to kuids, kgids, and kprojids, and to report
> an error if the conversion fails.

Please just convert to xfs_dqid_t at the interface.

> - Create struct xfs_internal_eofblocks to hold the same information as
> struct xfs_eofblocks but with uids, gids, and projids stored as
> kuids, kgids, and kprojids preventing confusion.

No need. Just convert the struct xfs_eof_blocks to define them all
as xfs_dqid_t and convert them in place to the type that is
compatible with the XFS core use of these fields (i.e. comparing
them with the on-disk inode uid/gid/prid values).


Dave Chinner
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