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ide: remove the PCI_DMA_BUS_IS_PHYS check

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We now have ways to deal with drainage in the block layer, and libata has
been using it for ages.  We also want to get rid of PCI_DMA_BUS_IS_PHYS
now, so just reduce the PCI transfer size for ide - anyone who cares for
performance on PCI controllers should have switched to libata long ago.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2018-04-03 20:29:44 +02:00
parent 1d3b9917df
commit 164c3d0912
1 changed files with 1 additions and 2 deletions
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3
drivers/ide/ide-probe.c
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@ -796,8 +796,7 @@ static int ide_init_queue(ide_drive_t *drive)
* This will be fixed once we teach pci_map_sg() about our boundary
* requirements, hopefully soon. *FIXME*
*/
if (!PCI_DMA_BUS_IS_PHYS)
max_sg_entries >>= 1;
max_sg_entries >>= 1;
#endif /* CONFIG_PCI */
blk_queue_max_segments(q, max_sg_entries);