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Catch a few corner cases where FreeBSD differs enough from BSD 4.4 to

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confuse Soft updates..
Should solve several "dangling deps" panics.
This commit is contained in:
Julian Elischer 1998-07-08 01:04:33 +00:00
parent b5fe8fabda
commit 6deaf84b1f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=37490
4 changed files with 15 additions and 9 deletions
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3
sys/gnu/ext2fs/ext2_readwrite.c
View file

@ -254,7 +254,8 @@ WRITE(ap)
error =
uiomove((char *)bp->b_data + blkoffset, (int)xfersize, uio);
if (ioflag & IO_VMIO)
if ((ioflag & IO_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL)) /* in ext2fs? */
bp->b_flags |= B_RELBUF;
if (ioflag & IO_SYNC) {

3
sys/gnu/fs/ext2fs/ext2_readwrite.c
View file

@ -254,7 +254,8 @@ WRITE(ap)
error =
uiomove((char *)bp->b_data + blkoffset, (int)xfersize, uio);
if (ioflag & IO_VMIO)
if ((ioflag & IO_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL)) /* in ext2fs? */
bp->b_flags |= B_RELBUF;
if (ioflag & IO_SYNC) {

7
sys/kern/vfs_bio.c
View file

@ -11,7 +11,7 @@
* 2. Absolutely no warranty of function or purpose is made by the author
* John S. Dyson.
*
* $Id: vfs_bio.c,v 1.164 1998/05/01 15:10:59 peter Exp $
* $Id: vfs_bio.c,v 1.165 1998/07/04 20:45:31 julian Exp $
*/
/*
@ -1458,7 +1458,8 @@ getblk(struct vnode * vp, daddr_t blkno, int size, int slpflag, int slptimeo)
bp->b_flags |= B_NOCACHE;
VOP_BWRITE(bp);
} else {
if (bp->b_flags & B_VMIO) {
if ((bp->b_flags & B_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL)) {
bp->b_flags |= B_RELBUF;
brelse(bp);
} else {
@ -1571,7 +1572,7 @@ geteblk(int size)
while ((bp = getnewbuf(0, (daddr_t) 0, 0, 0, size, MAXBSIZE)) == 0);
splx(s);
allocbuf(bp, size);
bp->b_flags |= B_INVAL;
bp->b_flags |= B_INVAL; /* b_dep cleared by getnewbuf() */
return (bp);
}

11
sys/ufs/ufs/ufs_readwrite.c
View file

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)ufs_readwrite.c 8.11 (Berkeley) 5/8/95
* $Id: ufs_readwrite.c,v 1.49 1998/04/06 18:18:50 peter Exp $
* $Id: ufs_readwrite.c,v 1.50 1998/06/04 17:04:44 dfr Exp $
*/
#define BLKSIZE(a, b, c) blksize(a, b, c)
@ -210,7 +210,8 @@ READ(ap)
if (error)
break;
if (ioflag & IO_VMIO) {
if ((ioflag & IO_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL)) {
bp->b_flags |= B_RELBUF;
brelse(bp);
} else {
@ -219,7 +220,8 @@ READ(ap)
}
if (bp != NULL) {
if (ioflag & IO_VMIO) {
if ((ioflag & IO_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL)) {
bp->b_flags |= B_RELBUF;
brelse(bp);
} else {
@ -355,7 +357,8 @@ WRITE(ap)
error =
uiomove((char *)bp->b_data + blkoffset, (int)xfersize, uio);
if (ioflag & IO_VMIO)
if ((ioflag & IO_VMIO) &&
(LIST_FIRST(&bp->b_dep) == NULL))
bp->b_flags |= B_RELBUF;
if (ioflag & IO_SYNC) {