tree cf1010ee6361e8bcd98ea2f29fa899fa52bf801d
parent cccb5a1e698535fa5a734ffe21c7061c97f8d8c5
author Jeff Layton <jlayton@redhat.com> 1291756790 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1294880819 -0500

vfs: pass struct file to do_truncate on O_TRUNC opens (try #2)

When a file is opened with O_TRUNC, the truncate processing is handled
by handle_truncate(). This function however doesn't receive any info
about the newly instantiated filp, and therefore can't pass that info
along so that the setattr can use it.

This makes NFSv4 misbehave. The client does an open and gets a valid
stateid, and then doesn't use that stateid on the subsequent truncate.
It uses the zero-stateid instead. Most servers ignore this fact and
just do the truncate anyway, but some don't like it (notably, RHEL4).

It seems more correct that since we have a fully instantiated file at
the time that handle_truncate is called, that we pass that along so
that the truncate operation can properly use it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>