CRED: Wrap task credential accesses in the FUSE filesystem

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: fuse-devel@lists.sourceforge.net
Signed-off-by: James Morris <jmorris@namei.org>

diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index b72361479be25789e8caa4e6be5febe1f276419e..fba571648a8e43efdbbb092a5f20a03a7e84f1e5 100644 (file)
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -87,8 +87,8 @@ static void __fuse_put_request(struct fuse_req *req)
 
 static void fuse_req_init_context(struct fuse_req *req)
 {
-       req->in.h.uid = current->fsuid;
-       req->in.h.gid = current->fsgid;
+       req->in.h.uid = current_fsuid();
+       req->in.h.gid = current_fsgid();
        req->in.h.pid = current->pid;
 }