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authorArjan van de Ven <arjan@infradead.org>2005-11-28 10:06:23 +0100
committerJeff Garzik <jgarzik@pobox.com>2005-12-01 02:29:35 -0500
commit98ac62defe529d04a192688f40d801a2d8fbcf98 (patch)
treef37be3b98a245f83d6c2ed37938377ed0b1bcae6 /drivers/scsi/libata-core.c
parent6946d28a9f47f50fe3dd916e8b4229de9769108e (diff)
downloadop-kernel-dev-98ac62defe529d04a192688f40d801a2d8fbcf98.zip
op-kernel-dev-98ac62defe529d04a192688f40d801a2d8fbcf98.tar.gz
[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>
Diffstat (limited to 'drivers/scsi/libata-core.c')
-rw-r--r--drivers/scsi/libata-core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 9f27e8d..11ed6fa 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -605,7 +605,7 @@ void ata_rwcmd_protocol(struct ata_queued_cmd *qc)
tf->command = ata_rw_cmds[index + lba48 + write];
}
-static const char * xfer_mode_str[] = {
+static const char * const xfer_mode_str[] = {
"UDMA/16",
"UDMA/25",
"UDMA/33",
@@ -2083,7 +2083,7 @@ static void ata_pr_blacklisted(const struct ata_port *ap,
ap->id, dev->devno);
}
-static const char * ata_dma_blacklist [] = {
+static const char * const ata_dma_blacklist [] = {
"WDC AC11000H",
"WDC AC22100H",
"WDC AC32500H",
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