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Commit b34e9042 authored by Richard Kennedy's avatar Richard Kennedy Committed by Jeff Garzik
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libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds 



Reorder structure ata_queued_cmd to remove 8 bytes of alignment padding
on 64 bit builds & therefore reduce the size of structure ata_port by
256 bytes.

Overall this will have little impact, other than reducing the amount of
memory that is cleared when allocating ata_ports.

Signed-off-by: default avatarRichard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 02e0a604

include/linux/libata.h

+3 −3
Original line number Diff line number Diff line
@@ -570,13 +570,13 @@ struct ata_queued_cmd { 
	unsigned int		extrabytes;

	unsigned int		curbytes;



	struct scatterlist	*cursg;

	unsigned int		cursg_ofs;



	struct scatterlist	sgent;



	struct scatterlist	*sg;



	struct scatterlist	*cursg;

	unsigned int		cursg_ofs;



	unsigned int		err_mask;

	struct ata_taskfile	result_tf;

	ata_qc_cb_t		complete_fn;