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Limit the size of the rebuild requests to be within safety.

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sos 2003-09-08 13:36:26 +00:00
parent 0c9be51c08
commit fa2b1d6313
1 changed files with 6 additions and 3 deletions
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9
sys/dev/ata/ata-raid.c
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@ -75,6 +75,8 @@ static void ar_print_conf(struct ar_softc *);
static struct ar_softc **ar_table = NULL;
static MALLOC_DEFINE(M_AR, "AR driver", "ATA RAID driver");
#define AR_REBUILD_SIZE 128
int
ata_raiddisk_attach(struct ad_softc *adp)
{
@ -1008,14 +1010,15 @@ ar_rebuild(void *arg)
/* setup start conditions */
s = splbio();
rdp->lock_start = 0;
rdp->lock_end = rdp->lock_start + 256;
rdp->lock_end = rdp->lock_start + AR_REBUILD_SIZE;
rdp->flags |= AR_F_REBUILDING;
splx(s);
buffer = malloc(256 * DEV_BSIZE, M_AR, M_NOWAIT | M_ZERO);
buffer = malloc(AR_REBUILD_SIZE * DEV_BSIZE, M_AR, M_NOWAIT | M_ZERO);
/* now go copy entire disk(s) */
while (rdp->lock_end < (rdp->total_sectors / rdp->width)) {
int size = min(256, (rdp->total_sectors / rdp->width) - rdp->lock_end);
int size = min(AR_REBUILD_SIZE,
(rdp->total_sectors / rdp->width) - rdp->lock_end);
for (disk = 0; disk < rdp->width; disk++) {
struct ad_softc *adp;