Matthew Wilcox 2640d7c0b8 AHCI: Remove an unnecessary flush from ahci_qc_issue ... In an I/O heavy workload (IOZone), ahci_qc_issue is the second-highest consumer of CPU cycles. Removing the flush gets us approximately 10% bandwidth improvement. I believe this to be because the CPU can start queueing the next request instead of waiting for the readl() to flush the writes to the device. The flush isn't necessary because we're using a 'queue' metaphor; we don't guarantee the command has got to the device, nor do we need to guarantee the command has got to the controller. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>		2008-07-14 15:59:34 -04:00
..
ahci.c	AHCI: Remove an unnecessary flush from ahci_qc_issue	2008-07-14 15:59:34 -04:00
ata_generic.c
ata_piix.c
Kconfig
libata-acpi.c	libata-acpi: don't call sleeping function from invalid context	2008-07-11 09:42:03 -04:00
libata-core.c	libata: improve EH internal command timeout handling	2008-07-14 15:59:32 -04:00
libata-eh.c	libata-eh: update atapi_eh_request_sense() to take @dev instead of @qc	2008-07-14 15:59:33 -04:00
libata-pmp.c	libata: improve EH retry delay handling	2008-07-14 15:59:32 -04:00
libata-scsi.c	[libata] Add support for VPD page b1	2008-07-14 15:59:33 -04:00
libata-sff.c	libata: consistently use msecs for time durations	2008-07-14 15:59:32 -04:00
libata.h	libata: improve EH internal command timeout handling	2008-07-14 15:59:32 -04:00
Makefile
pata_acpi.c
pata_ali.c
pata_amd.c
pata_artop.c
pata_at32.c
pata_atiixp.c
pata_bf54x.c	libata: consistently use msecs for time durations	2008-07-14 15:59:32 -04:00
pata_cmd64x.c
pata_cmd640.c
pata_cs5520.c
pata_cs5530.c
pata_cs5535.c
pata_cs5536.c
pata_cypress.c
pata_efar.c
pata_hpt3x2n.c
pata_hpt3x3.c
pata_hpt37x.c
pata_hpt366.c
pata_icside.c
pata_isapnp.c
pata_it821x.c
pata_it8213.c
pata_ixp4xx_cf.c
pata_jmicron.c
pata_legacy.c	ata: endianness annotations in pata drivers	2008-07-14 15:59:33 -04:00
pata_marvell.c
pata_mpc52xx.c
pata_mpiix.c
pata_netcell.c
pata_ninja32.c
pata_ns87410.c
pata_ns87415.c
pata_of_platform.c
pata_oldpiix.c
pata_opti.c
pata_optidma.c
pata_pcmcia.c
pata_pdc202xx_old.c
pata_pdc2027x.c
pata_platform.c
pata_qdi.c	ata: endianness annotations in pata drivers	2008-07-14 15:59:33 -04:00
pata_radisys.c
pata_rb532_cf.c
pata_rz1000.c
pata_sc1200.c
pata_scc.c	libata: consistently use msecs for time durations	2008-07-14 15:59:32 -04:00
pata_sch.c
pata_serverworks.c
pata_sil680.c
pata_sis.c	Added Targa Visionary 1000 IDE adapter to pata_sis.c	2008-07-11 09:38:24 -04:00
pata_sl82c105.c
pata_triflex.c
pata_via.c
pata_winbond.c	ata: endianness annotations in pata drivers	2008-07-14 15:59:33 -04:00
pdc_adma.c
sata_fsl.c
sata_inic162x.c
sata_mv.c	sata_mv: safer logic for limit_warnings	2008-07-04 09:07:12 -04:00
sata_nv.c
sata_promise.c
sata_promise.h
sata_qstor.c
sata_sil24.c
sata_sil.c
sata_sis.c
sata_svw.c	[libata] sata_svw: update code comments relating to data corruption	2008-07-14 15:59:33 -04:00
sata_sx4.c
sata_uli.c
sata_via.c
sata_vsc.c
sis.h