Commit 84bda12a authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

libata: align ap->sector_buf 



ap->sector_buf is used as DMA target and should at least be aligned on
cacheline.  This caused problems on some embedded machines.

Signed-off-by: default avatarTejun Heo <tj@kernel.org>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 5825627c

include/linux/libata.h

+2 −1
Original line number Diff line number Diff line
@@ -751,7 +751,8 @@ struct ata_port { 
	acpi_handle		acpi_handle;

	struct ata_acpi_gtm	__acpi_init_gtm; /* use ata_acpi_init_gtm() */

#endif

	u8			sector_buf[ATA_SECT_SIZE]; /* owned by EH */

	/* owned by EH */

	u8			sector_buf[ATA_SECT_SIZE] ____cacheline_aligned;

};



/* The following initializer overrides a method to NULL whether one of