[SCSI] imm: no need for unchecked_isa_dma
Relax the lowmem bounce buffer requirement for imm so that any low memory page will do -- they don't need to be below the ISA 16 MB limit, just need to be mapped in low memory. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
parent
818bf49352
commit
979dca3826
|
@ -1119,6 +1119,10 @@ static int device_check(imm_struct *dev)
|
|||
return -ENODEV;
|
||||
}
|
||||
|
||||
/*
|
||||
* imm cannot deal with highmem, so this causes all IO pages for this host
|
||||
* to reside in low memory (hence mapped)
|
||||
*/
|
||||
static int imm_adjust_queue(struct scsi_device *device)
|
||||
{
|
||||
blk_queue_bounce_limit(device->request_queue, BLK_BOUNCE_HIGH);
|
||||
|
@ -1141,10 +1145,6 @@ static struct scsi_host_template imm_template = {
|
|||
.use_clustering = ENABLE_CLUSTERING,
|
||||
.can_queue = 1,
|
||||
.slave_alloc = imm_adjust_queue,
|
||||
.unchecked_isa_dma = 1, /* imm cannot deal with highmem, so
|
||||
* this is an easy trick to ensure
|
||||
* all io pages for this host reside
|
||||
* in low memory */
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
|
|
Loading…
Reference in New Issue