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Fix false "hits" in the attribute cache when booting diskless. 

(Yet another thing that breaks when time.tv_sec is near zero...)
This commit is contained in:
gwr 1994-06-14 03:29:12 +00:00
parent b38ac6bdd9
commit b7692860e5
1 changed files with 16 additions and 3 deletions
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19
sys/nfs/nfs_vfsops.c
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@ -34,7 +34,7 @@
* SUCH DAMAGE.
*
* from: @(#)nfs_vfsops.c 8.3 (Berkeley) 1/4/94
* $Id: nfs_vfsops.c,v 1.22 1994/06/13 15:29:01 gwr Exp $
* $Id: nfs_vfsops.c,v 1.23 1994/06/14 03:29:12 gwr Exp $
*/
#include <sys/param.h>
@ -177,6 +177,15 @@ nfs_mountroot()
procp = curproc; /* XXX */
/*
* XXX time must be non-zero when we init the interface or else
* the arp code will wedge. [Fixed now in if_ether.c]
* However, the NFS attribute cache gives false "hits" when
* time.tv_sec < NFS_ATTRTIMEO(np) so keep this in for now.
*/
if (time.tv_sec < NFS_MAXATTRTIMO)
time.tv_sec = NFS_MAXATTRTIMO;
/*
* Call nfs_boot_init() to fill in the nfs_diskless struct.
* Side effect: Finds and configures a network interface.
@ -204,8 +213,10 @@ nfs_mountroot()
/* Get root attributes (for the time). */
error = VOP_GETATTR(vp, &attr, procp->p_cred->pc_ucred, procp);
if (error) panic("nfs_mountroot: getattr for root");
n = attr.va_mtime.ts_sec; /* XXX - Always zero. Why? -gwr */
n = attr.va_mtime.ts_sec;
#ifdef DEBUG
printf(" root time: 0x%x\n", n);
#endif
inittodr(n);
#ifdef notyet
@ -255,7 +266,9 @@ nfs_mountroot()
error = VOP_GETATTR(vp, &attr, procp->p_cred->pc_ucred, procp);
if (error) panic("nfs_mountroot: getattr for swap");
n = (long) (attr.va_size / DEV_BSIZE);
printf(" swap size: 0x%x (blocks)\n", n); /* XXX */
#ifdef DEBUG
printf(" swap size: 0x%x (blocks)\n", n);
#endif
swdevt[0].sw_nblks = n;
return (0);