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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-07-25 17:28:18 +0200
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-09-23 05:24:28 +0200
commit1c3c07e9f6cc50dab2aeb8051325e317d4f6c70e (patch)
tree96bbc2a304e9a0e831daf589d1662c6129303796 /fs/nfs/inode.c
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 (diff)
downloadlinux-1c3c07e9f6cc50dab2aeb8051325e317d4f6c70e.tar.xz
linux-1c3c07e9f6cc50dab2aeb8051325e317d4f6c70e.zip
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 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index d349fb2245da..b94ab060bb1e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -76,19 +76,14 @@ int nfs_write_inode(struct inode *inode, int sync)
void nfs_clear_inode(struct inode *inode)
{
- struct nfs_inode *nfsi = NFS_I(inode);
- struct rpc_cred *cred;
-
/*
* The following should never happen...
*/
BUG_ON(nfs_have_writebacks(inode));
- BUG_ON (!list_empty(&nfsi->open_files));
+ BUG_ON(!list_empty(&NFS_I(inode)->open_files));
+ BUG_ON(atomic_read(&NFS_I(inode)->data_updates) != 0);
nfs_zap_acl_cache(inode);
- cred = nfsi->cache_access.cred;
- if (cred)
- put_rpccred(cred);
- BUG_ON(atomic_read(&nfsi->data_updates) != 0);
+ nfs_access_zap_cache(inode);
}
/**
@@ -290,7 +285,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
nfsi->attrtimeo = NFS_MINATTRTIMEO(inode);
nfsi->attrtimeo_timestamp = jiffies;
memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
- nfsi->cache_access.cred = NULL;
+ nfsi->access_cache = RB_ROOT;
unlock_new_inode(inode);
} else