diff options
Diffstat (limited to 'nfs/cache.c')
| -rw-r--r-- | nfs/cache.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/nfs/cache.c b/nfs/cache.c index 3cdb527f..8f87f5d0 100644 --- a/nfs/cache.c +++ b/nfs/cache.c @@ -1,5 +1,5 @@ -/* Node cache management for NFS client implementation - Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc. +/* cache.c - Node cache management for NFS client implementation. + Copyright (C) 1995, 1996, 1997, 2002 Free Software Foundation, Inc. Written by Michael I. Bushnell, p/BSG. This file is part of the GNU Hurd. @@ -23,14 +23,15 @@ #include <string.h> #include <netinet/in.h> -/* Hash table containing all the nodes currently active. - XXX Was 512, however, a prime is much nice for the hash - function. 509 is nice as not only is it prime, it keeps - the array within a page or two */ +/* Hash table containing all the nodes currently active. XXX Was 512, + however, a prime is much nicer for the hash function. 509 is nice + as not only is it prime, it also keeps the array within a page or + two. */ #define CACHESIZE 509 static struct node *nodehash [CACHESIZE]; -/* Compute and return a hash key for NFS file handle DATA of LEN bytes. */ +/* Compute and return a hash key for NFS file handle DATA of LEN + bytes. */ static inline int hash (int *data, size_t len) { @@ -96,15 +97,15 @@ lookup_fhandle (void *p, size_t len, struct node **npp) *npp = np; } -/* Package holding args to forked_node_delete. */ +/* Package holding args to forked_node_delete. */ struct fnd { struct node *dir; char *name; }; -/* Worker function to delete nodes that don't have any more local references - or links. */ +/* Worker function to delete nodes that don't have any more local + references or links. */ any_t forked_node_delete (any_t arg) { @@ -121,7 +122,7 @@ forked_node_delete (any_t arg) /* Called by libnetfs when node NP has no more references. (See <hurd/libnetfs.h> for details. Just clear its local state and remove it from the hash table. Called and expected to leave with - NETFS_NODE_REFCNT_LOCK held. */ + NETFS_NODE_REFCNT_LOCK held. */ void netfs_node_norefs (struct node *np) { @@ -141,8 +142,9 @@ netfs_node_norefs (struct node *np) np->nn->dead_name = 0; netfs_nput (np); - /* Do this in a separate thread so that we don't wait for it; - it acquires a lock on the dir, which we are not allowed to do. */ + /* Do this in a separate thread so that we don't wait for it; it + acquires a lock on the dir, which we are not allowed to + do. */ cthread_detach (cthread_fork (forked_node_delete, (any_t) args)); /* Caller expects us to leave this locked... */ @@ -162,7 +164,7 @@ netfs_node_norefs (struct node *np) /* Change the file handle used for node NP to be the handle at P. Make sure the hash table stays up to date. Return the address - after the handle. The lock on the node should be held. */ + after the handle. The lock on the node should be held. */ int * recache_handle (int *p, struct node *np) { @@ -172,7 +174,10 @@ recache_handle (int *p, struct node *np) if (protocol_version == 2) len = NFS2_FHSIZE; else - len = ntohl (*p++); + { + len = ntohl (*p); + p++; + } /* Unlink it */ spin_lock (&netfs_node_refcnt_lock); |