scsi_init_io calls scsi_alloc_sgtable and then calls blk_rq_map_sg
to initialize the scatterlist structure. blk_rq_map_sg() already
memset the structure for every new segment. That makes the memset
in scsi_alloc_sgtable unnecessary.
Patch to delete the extra memset in scsi_alloc_sgtable. Tested on
a x86_64 machine. Looks stable to me.
Signed-off-by: Ken Chen <[EMAIL PROTECTED]>
--- linux-2.6.12/drivers/scsi/scsi_lib.c.orig 2005-07-12 16:34:46.051647933
-0700
+++ linux-2.6.12/drivers/scsi/scsi_lib.c 2005-07-12 16:37:10.601450849
-0700
@@ -615,8 +615,6 @@ static struct scatterlist *scsi_alloc_sg
sgp = scsi_sg_pools + cmd->sglist_len;
sgl = mempool_alloc(sgp->pool, gfp_mask);
- if (sgl)
- memset(sgl, 0, sgp->size);
return sgl;
}
-
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
