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expand_table: Avoid a race condition which may have been contributing

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to the random corruption, panics and hangs we've been seeing in RAID-5
plexes, particularly with ata drives.

Eagerly-awaited-by: sos
This commit is contained in:
grog 2000-05-04 07:38:47 +00:00
parent cf2c7a9d52
commit 701969bf4a
1 changed files with 4 additions and 1 deletions
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5
sys/dev/vinum/vinummemory.c
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@ -33,7 +33,7 @@
* otherwise) arising in any way out of the use of this software, even if
* advised of the possibility of such damage.
*
* $Id: vinummemory.c,v 1.23 1999/12/27 04:04:19 grog Exp grog $
* $Id: vinummemory.c,v 1.24 2000/02/24 07:25:51 grog Exp grog $
* $FreeBSD$
*/
@ -110,7 +110,9 @@ expand_table(void **table, int oldsize, int newsize)
{
if (newsize > oldsize) {
int *temp;
int s;
s = splhigh();
temp = (int *) Malloc(newsize); /* allocate a new table */
CHECKALLOC(temp, "vinum: Can't expand table\n");
bzero((char *) temp, newsize); /* clean it all out */
@ -119,6 +121,7 @@ expand_table(void **table, int oldsize, int newsize)
Free(*table);
}
*table = temp;
splx(s);
}
}