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

nfs_bioread: 

- if a buffer is still empty after successful nfs_doio, it implies EOF.
- don't cache blocks beyond EOF.
This commit is contained in:
yamt 2005-01-27 11:29:25 +00:00
parent 97eadfd5d7
commit 407a63dc34
1 changed files with 15 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
sys/nfs/nfs_bio.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: nfs_bio.c,v 1.125 2005/01/26 10:30:58 yamt Exp $ */
/* $NetBSD: nfs_bio.c,v 1.126 2005/01/27 11:29:25 yamt Exp $ */
/*
* Copyright (c) 1989, 1993
@ -35,7 +35,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nfs_bio.c,v 1.125 2005/01/26 10:30:58 yamt Exp $");
__KERNEL_RCSID(0, "$NetBSD: nfs_bio.c,v 1.126 2005/01/27 11:29:25 yamt Exp $");
#include "opt_nfs.h"
#include "opt_ddb.h"
@ -284,6 +284,18 @@ diragain:
}
}
if (bp->b_bcount == bp->b_resid) {
/*
* empty block implies EOF.
*/
nfs_putdircache(np, ndp);
bp->b_flags |= B_NOCACHE;
brelse(bp);
return 0;
}
/*
* Just return if we hit EOF right away with this
* block. Always check here, because direofoffset
@ -293,6 +305,7 @@ diragain:
if (NFS_EOFVALID(np) &&
ndp->dc_blkcookie == np->n_direofoffset) {
nfs_putdircache(np, ndp);
bp->b_flags |= B_NOCACHE;
brelse(bp);
return (0);
}