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Since we locate in-memory nodes based on the inode number, stat a 

file always after creation to cache the inode number given by the
backend file system.  Otherwise we would not find a newly created
node from incore and create another one.  In practise this was
pretty well hidden by the kernel name cache.
This commit is contained in:
pooka 2007-06-24 23:02:55 +00:00
parent 751a3d3a74
commit c3942902c4
1 changed files with 18 additions and 2 deletions
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20
lib/libpuffs/null.c
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@ -1,4 +1,4 @@
/* $NetBSD: null.c,v 1.17 2007/06/24 18:42:25 pooka Exp $ */
/* $NetBSD: null.c,v 1.18 2007/06/24 23:02:55 pooka Exp $ */
/*
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
@ -27,7 +27,7 @@
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: null.c,v 1.17 2007/06/24 18:42:25 pooka Exp $");
__RCSID("$NetBSD: null.c,v 1.18 2007/06/24 23:02:55 pooka Exp $");
#endif /* !lint */
/*
@ -220,6 +220,7 @@ puffs_null_node_create(struct puffs_cc *pcc, void *opc, void **newnode,
{
struct puffs_usermount *pu = puffs_cc_getusermount(pcc);
struct puffs_node *pn;
struct stat sb;
int fd, rv;
fd = open(PCNPATH(pcn), O_RDWR | O_CREAT | O_TRUNC);
@ -237,6 +238,9 @@ puffs_null_node_create(struct puffs_cc *pcc, void *opc, void **newnode,
return ENOMEM;
}
puffs_setvattr(&pn->pn_va, va);
rv = lstat(PCNPATH(pcn), &sb);
assert(rv == 0);
puffs_stat2vattr(&pn->pn_va, &sb);
*newnode = pn;
return 0;
@ -249,6 +253,7 @@ puffs_null_node_mknod(struct puffs_cc *pcc, void *opc, void **newnode,
{
struct puffs_usermount *pu = puffs_cc_getusermount(pcc);
struct puffs_node *pn;
struct stat sb;
mode_t mode;
int rv;
@ -267,6 +272,9 @@ puffs_null_node_mknod(struct puffs_cc *pcc, void *opc, void **newnode,
return ENOMEM;
}
puffs_setvattr(&pn->pn_va, va);
rv = lstat(PCNPATH(pcn), &sb);
assert(rv == 0);
puffs_stat2vattr(&pn->pn_va, &sb);
*newnode = pn;
return 0;
@ -381,6 +389,7 @@ puffs_null_node_mkdir(struct puffs_cc *pcc, void *opc, void **newnode,
{
struct puffs_usermount *pu = puffs_cc_getusermount(pcc);
struct puffs_node *pn;
struct stat sb;
int rv;
if (mkdir(PCNPATH(pcn), va->va_mode) == -1)
@ -397,6 +406,9 @@ puffs_null_node_mkdir(struct puffs_cc *pcc, void *opc, void **newnode,
return ENOMEM;
}
puffs_setvattr(&pn->pn_va, va);
rv = lstat(PCNPATH(pcn), &sb);
assert(rv == 0);
puffs_stat2vattr(&pn->pn_va, &sb);
*newnode = pn;
return 0;
@ -424,6 +436,7 @@ puffs_null_node_symlink(struct puffs_cc *pcc, void *opc, void **newnode,
{
struct puffs_usermount *pu = puffs_cc_getusermount(pcc);
struct puffs_node *pn;
struct stat sb;
int rv;
if (symlink(linkname, PCNPATH(pcn)) == -1)
@ -440,6 +453,9 @@ puffs_null_node_symlink(struct puffs_cc *pcc, void *opc, void **newnode,
return ENOMEM;
}
puffs_setvattr(&pn->pn_va, va);
rv = lstat(PCNPATH(pcn), &sb);
assert(rv == 0);
puffs_stat2vattr(&pn->pn_va, &sb);
*newnode = pn;
return 0;