tree 48f32072b0e2989ebfae167dfe04d7480c3e8167
parent 232087cb734c7035c0a8947fb05d3e8092ff6c4d
author Jeff Layton <jlayton@redhat.com> 1222133613 -0400
committer Steve French <sfrench@us.ibm.com> 1222136653 +0000

cifs: have find_writeable_file prefer filehandles opened by same task

When the CIFS client goes to write out pages, it needs to pick a
filehandle to write to. find_writeable_file however just picks the
first filehandle that it finds. This can cause problems when a lock
is issued against a particular filehandle and we pick a different
filehandle to write to.

This patch tries to avert this situation by having find_writable_file
prefer filehandles that have a pid that matches the current task.
This seems to fix lock test 11 from the connectathon test suite when
run against a windows server.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>