K 10
svn:author
V 3
mjg
K 8
svn:date
V 27
2015-06-10T10:43:59.934252Z
K 7
svn:log
V 428
Generalised support for copy-on-write structures shared by threads.

Thread credentials are maintained as follows: each thread has a pointer to
creds and a reference on them. The pointer is compared with proc's creds on
userspace<->kernel boundary and updated if needed.

This patch introduces a counter which can be compared instead, so that more
structures can use this scheme without adding more comparisons on the boundary.

END