Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Create in-memory nodes only per unique inode, not unique pathname. 

Solves problem with e.g. cache coherency of hardlinked files.
This commit is contained in:
pooka 2007-03-13 17:05:23 +00:00
parent 9eae719a71
commit d695eff80f
1 changed files with 15 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
lib/libpuffs/null.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: null.c,v 1.8 2007/02/15 19:33:51 pooka Exp $ */
/* $NetBSD: null.c,v 1.9 2007/03/13 17:05:23 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
@ -30,7 +30,7 @@
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: null.c,v 1.8 2007/02/15 19:33:51 pooka Exp $");
__RCSID("$NetBSD: null.c,v 1.9 2007/03/13 17:05:23 pooka Exp $");
#endif /* !lint */
/*
@ -47,6 +47,7 @@ __RCSID("$NetBSD: null.c,v 1.8 2007/02/15 19:33:51 pooka Exp $");
#include <fcntl.h>
#include <puffs.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
PUFFSOP_PROTOS(puffs_null)
@ -124,6 +125,17 @@ writeableopen(const char *path)
return fd;
}
/*ARGSUSED*/
static void *
inodecmp(struct puffs_usermount *pu, struct puffs_node *pn, void *arg)
{
ino_t *cmpino = arg;
if (pn->pn_va.va_fileid == *cmpino)
return pn;
return NULL;
}
/*ARGSUSED*/
int
puffs_null_fs_statvfs(struct puffs_cc *pcc, struct statvfs *svfsb, pid_t pid)
@ -158,10 +170,8 @@ puffs_null_node_lookup(struct puffs_cc *pcc, void *opc, void **newnode,
if (rv)
return rv;
/* XXX: UNCONST is wrong, fix the interface */
/* XXX2: nodewalk is a bit too slow here */
pn_res = puffs_pn_nodewalk(pu, puffs_path_walkcmp,
__UNCONST(&pcn->pcn_po_full));
pn_res = puffs_pn_nodewalk(pu, inodecmp, &sb.st_ino);
if (pn_res == NULL) {
pn_res = puffs_pn_new(pu, NULL);