tree f3ba48a16203c899dbe57482c1ff7f1c02e0c9ca
parent cfcea3e8c66c2dcde98d5c2693d4bff50b5cac97
author Trond Myklebust <Trond.Myklebust@netapp.com> 1153841299 -0400
committer Trond Myklebust <Trond.Myklebust@netapp.com> 1158981869 -0400

NFS: Add an ACCESS cache memory shrinker

A pinned inode may in theory end up filling memory with cached ACCESS
calls. This patch ensures that the VM may shrink away the cache in these
particular cases.
The shrinker works by iterating through the list of inodes on the global
nfs_access_lru_list, and removing the least recently used access
cache entry until it is done (or until the entire cache is empty).

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>