tree 52974b28fecd3c11fc0596504270ffee976f1b1a
parent 6d73cf133c5477f7038577bfeda603ce9946f8cb
author Christoph Hellwig <hch@infradead.org> 1228816053 -0500
committer Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> 1228961681 +1100

[XFS] add a FMODE flag to make XFS invisible I/O less hacky

XFS has a mode called invisble I/O that doesn't update any of the
timestamps.  It's used for HSM-style applications and exposed through
the nasty open by handle ioctl.

Instead of doing directly assignment of file operations that set an
internal flag for it add a new FMODE_NOCMTIME flag that we can check
in the normal file operations.

(addition of the generic VFS flag has been ACKed by Al as an interims
 solution)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>