mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-26 04:16:39 +00:00
Code Issues Releases Wiki Activity

[PATCH] ide-disk: Fix LBA8 DMA

Browse source 
This is from Gentoo's 2.6.11 patchset. A problem was introduced in 2.6.10
where some users could not enable DMA on their disks (particularly ALi15x3
users). This was a small mistake with the no_lba48_dma flag.

I can't find the exact commit but this is definately included in 2.6.12-rc4.

From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@osdl.org>
This commit is contained in:
Daniel Drake 2005-05-12 12:31:27 +01:00 committed by
parent de116e6f64
commit bb2c140171
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/ide/ide-disk.c
View file

@ -133,6 +133,8 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
if (hwif->no_lba48_dma && lba48 && dma) {
if (block + rq->nr_sectors > 1ULL << 28)
dma = 0;
else
lba48 = 0;
}
if (!dma) {
@ -146,7 +148,7 @@ static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq,
/* FIXME: SELECT_MASK(drive, 0) ? */
if (drive->select.b.lba) {
if (drive->addressing == 1) {
if (lba48) {
task_ioreg_t tasklets[10];
pr_debug("%s: LBA=0x%012llx\n", drive->name, block);