[PATCH] v9fs: simplify fid mapping

v9fs has been plagued by an over-complicated approach trying to map Linux
dentry semantics to Plan 9 fid semantics.  Our previous approach called for
aggressive flushing of the dcache resulting in several problems (including
wierd cwd behavior when running /bin/pwd).

This patch dramatically simplifies our handling of this fid management.  Fids
will not be clunked as promptly, but the new approach is more functionally
correct.  We now clunk un-open fids only when their dentry ref_count reaches 0
(and d_delete is called).

Another simplification is we no longer seek to match fids to the process-id or
uid of the action initiator.  The uid-matching will need to be revisited when
we fix the security model.

Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/fs/9p/fid.h b/fs/9p/fid.h
index 7ccf0d064e25..1fc2dd08d75a 100644
--- a/fs/9p/fid.h
+++ b/fs/9p/fid.h
@@ -44,7 +44,6 @@ struct v9fs_fid {
         struct v9fs_fcall *rdir_fcall;
 
         /* management stuff */
-        pid_t pid;              /* thread associated with this fid */
         uid_t uid;              /* user associated with this fid */
 
         /* private data */