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checked, that new sa CAM driver takes care of using buffer sizes

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<= 64 KB. Was able to dump/restore with block sizes of 96, 128 and
200. using systat -vmstat I noticed transfer blocksizes <= 64KB,
so physio's limits aren't touched.
Since this check was originally from me, I feels safe now to back it
out.
This commit is contained in:
Andreas Klemm 1998-09-16 20:52:12 +00:00
parent 53398df2a8
commit 678bcd7728
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=39382
1 changed files with 1 additions and 15 deletions
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16
sbin/dump/main.c
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@ -42,7 +42,7 @@ static const char copyright[] =
static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/1/95";
#endif
static const char rcsid[] =
"$Id: main.c,v 1.16 1998/06/15 06:58:10 charnier Exp $";
"$Id: main.c,v 1.17 1998/07/14 09:19:47 jkoshy Exp $";
#endif /* not lint */
#include <sys/param.h>
@ -147,20 +147,6 @@ main(argc, argv)
case 'b': /* blocks per tape write */
ntrec = numarg("number of blocks per write",
1L, 1000L);
/*
* XXX
* physio(9) currently slices all requests to
* 64 KB chunks. So now, if somebody entered
* e.g. 96 KB block size here, he would effectively
* yield one 64 KB and one 32 KB block, which
* restore cannot handle.
* Thus we currently enforce pyhsio(9)'s limit
* here, too.
*/
if ( ntrec > 64 ) {
msg("please choose a blocksize <= 64\n");
exit(X_STARTUP);
}
break;
case 'c': /* Tape is cart. not 9-track */