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Fix certain kinds of block device operations. For example, tunefs on

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a block device shouldn't crash the system anymore.
This commit is contained in:
John Dyson 1998-03-04 06:44:59 +00:00
parent a638dbdbf4
commit aeb52ab0eb
2 changed files with 8 additions and 18 deletions
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13
sys/fs/specfs/spec_vnops.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)spec_vnops.c 8.14 (Berkeley) 5/21/95
* $Id: spec_vnops.c,v 1.55 1998/02/05 03:32:23 dyson Exp $
* $Id: spec_vnops.c,v 1.56 1998/02/06 12:13:43 eivind Exp $
*/
#include <sys/param.h>
@ -393,15 +393,10 @@ spec_write(ap)
brelse(bp);
return (error);
}
if (vp->v_flag & VOBJBUF)
bp->b_flags |= B_CLUSTEROK;
error = uiomove((char *)bp->b_data + on, n, uio);
if (n + on == bsize) {
if ((vp->v_flag & VOBJBUF) && (on == 0))
vfs_bio_awrite(bp);
else
bawrite(bp);
} else
if (n + on == bsize)
bawrite(bp);
else
bdwrite(bp);
} while (error == 0 && uio->uio_resid > 0 && n != 0);
return (error);

13
sys/miscfs/specfs/spec_vnops.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)spec_vnops.c 8.14 (Berkeley) 5/21/95
* $Id: spec_vnops.c,v 1.55 1998/02/05 03:32:23 dyson Exp $
* $Id: spec_vnops.c,v 1.56 1998/02/06 12:13:43 eivind Exp $
*/
#include <sys/param.h>
@ -393,15 +393,10 @@ spec_write(ap)
brelse(bp);
return (error);
}
if (vp->v_flag & VOBJBUF)
bp->b_flags |= B_CLUSTEROK;
error = uiomove((char *)bp->b_data + on, n, uio);
if (n + on == bsize) {
if ((vp->v_flag & VOBJBUF) && (on == 0))
vfs_bio_awrite(bp);
else
bawrite(bp);
} else
if (n + on == bsize)
bawrite(bp);
else
bdwrite(bp);
} while (error == 0 && uio->uio_resid > 0 && n != 0);
return (error);