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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-07-25 19:28:18 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-09-23 07:24:28 +0400
commit1c3c07e9f6cc50dab2aeb8051325e317d4f6c70e (patch)
tree96bbc2a304e9a0e831daf589d1662c6129303796 /include/linux/nfs_fs.h
parent3eeab61aa3ddd3c0bedb7449ada1599de22fdb5a (diff)
downloadlinux-1c3c07e9f6cc50dab2aeb8051325e317d4f6c70e.tar.xz
NFS: Add a new ACCESS rpc call cache to the linux nfs client
The current access cache only allows one entry at a time to be cached for each inode. Add a per-inode red-black tree in order to allow more than one to be cached at a time. Should significantly cut down the time spent in path traversal for shared directories such as ${PATH}, /usr/share, etc. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
-rw-r--r--include/linux/nfs_fs.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 6c2066caeaab..cc013ed2e52e 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -42,6 +42,7 @@
#include <linux/in.h>
#include <linux/mm.h>
#include <linux/pagemap.h>
+#include <linux/rbtree.h>
#include <linux/rwsem.h>
#include <linux/wait.h>
@@ -69,6 +70,7 @@
* NFSv3/v4 Access mode cache entry
*/
struct nfs_access_entry {
+ struct rb_node rb_node;
unsigned long jiffies;
struct rpc_cred * cred;
int mask;
@@ -145,7 +147,7 @@ struct nfs_inode {
*/
atomic_t data_updates;
- struct nfs_access_entry cache_access;
+ struct rb_root access_cache;
#ifdef CONFIG_NFS_V3_ACL
struct posix_acl *acl_access;
struct posix_acl *acl_default;
@@ -297,6 +299,7 @@ extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
extern int nfs_permission(struct inode *, int, struct nameidata *);
extern int nfs_access_get_cached(struct inode *, struct rpc_cred *, struct nfs_access_entry *);
extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
+extern void nfs_access_zap_cache(struct inode *inode);
extern int nfs_open(struct inode *, struct file *);
extern int nfs_release(struct inode *, struct file *);
extern int nfs_attribute_timeout(struct inode *inode);