diff options
Diffstat (limited to 'sys/kern/vfs_bio.c')
| -rw-r--r-- | sys/kern/vfs_bio.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index 44ebf79..5a18252 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -18,7 +18,7 @@ * 5. Modifications may be freely made to this file if the above conditions * are met. * - * $Id: vfs_bio.c,v 1.116 1997/05/19 14:36:36 dfr Exp $ + * $Id: vfs_bio.c,v 1.117 1997/05/30 22:25:35 dfr Exp $ */ /* @@ -512,13 +512,17 @@ brelse(struct buf * bp) * flags in the vm_pages have only DEV_BSIZE resolution but * the b_validoff, b_validend fields have byte resolution. * This can avoid unnecessary re-reads of the buffer. + * XXX this seems to cause performance problems. */ if ((bp->b_flags & B_VMIO) +#ifdef notdef && (bp->b_vp->v_tag != VT_NFS || (bp->b_flags & (B_NOCACHE | B_INVAL | B_ERROR)) || bp->b_validend == 0 || (bp->b_validoff == 0 - && bp->b_validend == bp->b_bufsize))) { + && bp->b_validend == bp->b_bufsize)) +#endif + ) { vm_ooffset_t foff; vm_object_t obj; int i, resid; |
