[PATCH] mark several libata datastructures const
Hi,
the patch below marks several libata (and libata-driver) structures
const so that they end up in the .rodata segment and don't false-share
cachelines with things that get dirtied often.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 25e56fb..0208906 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -158,7 +158,7 @@
.host_stop = ata_pci_host_stop,
};
-static struct ata_port_info pdc_port_info[] = {
+static const struct ata_port_info pdc_port_info[] = {
/* board_2037x */
{
.sht = &pdc_ata_sht,