diff options
| author | Arjan van de Ven <arjan@infradead.org> | 2005-11-28 10:06:23 +0100 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-12-01 02:29:35 -0500 |
| commit | 98ac62defe529d04a192688f40d801a2d8fbcf98 (patch) | |
| tree | f37be3b98a245f83d6c2ed37938377ed0b1bcae6 /drivers/scsi/libata-scsi.c | |
| parent | 6946d28a9f47f50fe3dd916e8b4229de9769108e (diff) | |
| download | op-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-scsi.c')
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 3b4ca55a..b21b885 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -418,7 +418,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, int i; /* Based on the 3ware driver translation table */ - static unsigned char sense_table[][4] = { + static const unsigned char sense_table[][4] = { /* BBD|ECC|ID|MAR */ {0xd1, ABORTED_COMMAND, 0x00, 0x00}, // Device busy Aborted command /* BBD|ECC|ID */ @@ -449,7 +449,7 @@ void ata_to_sense_error(unsigned id, u8 drv_stat, u8 drv_err, u8 *sk, u8 *asc, {0x80, MEDIUM_ERROR, 0x11, 0x04}, // Block marked bad Medium error, unrecovered read error {0xFF, 0xFF, 0xFF, 0xFF}, // END mark }; - static unsigned char stat_table[][4] = { + static const unsigned char stat_table[][4] = { /* Must be first because BUSY means no other bits valid */ {0x80, ABORTED_COMMAND, 0x47, 0x00}, // Busy, fake parity for now {0x20, HARDWARE_ERROR, 0x00, 0x00}, // Device fault @@ -1532,7 +1532,7 @@ unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf, return 0; } -static const char *inq_83_str = "Linux ATA-SCSI simulator"; +static const char * const inq_83_str = "Linux ATA-SCSI simulator"; /** * ata_scsiop_inq_83 - Simulate INQUIRY EVPD page 83, device identity |
