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437681800b
linux/drivers/ata
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Jens Axboe 437681800b [libata] get rid of ATA_MAX_QUEUE loop in ata_qc_complete_multiple() v2 
We very rarely (if ever) complete more than one command in the
sactive mask at the time, even for extremely high IO rates. So
looping over the entire range of possible tags is pointless,
instead use __ffs() to just find the completed tags directly.

Updated to clear the tag from the done_mask instead of shifting
done_mask down as suggested by From: Tejun Heo <htejun@gmail.com>
Verified with a user space tester to produce the same results.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 07:50:17 -04:00
..
ahci.c [libata] ahci: use less error-prone array initializers 2009-06-10 07:50:16 -04:00
ata_generic.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
ata_piix.c ata_piix: Add HP Compaq nc6000 to the broken poweroff list 2009-06-05 14:41:13 -04:00
Kconfig trivial: fix typos/grammar errors in Kconfig texts 2009-03-30 15:22:01 +02:00
libata-acpi.c
libata-core.c [libata] get rid of ATA_MAX_QUEUE loop in ata_qc_complete_multiple() v2 2009-06-10 07:50:17 -04:00
libata-eh.c libata: clear ering on resume 2009-05-11 14:30:59 -04:00
libata-pmp.c
libata-scsi.c libata: Media rotation rate and form factor heuristics 2009-05-15 14:14:56 -04:00
libata-sff.c libata-sff: avoid byte swapping in ata_sff_data_xfer() 2009-06-10 07:50:16 -04:00
libata.h [libata] Export ata_pio_queue_task() so that it can be used from sata_mv. 2009-03-24 22:02:41 -04:00
Makefile
pata_acpi.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_ali.c [libata] pata_ali: Use IGN_SIMPLEX 2009-06-05 17:10:54 -04:00
pata_amd.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_artop.c pata_artop: Serializing support 2009-03-24 22:45:05 -04:00
pata_at32.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_atiixp.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_bf54x.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cmd64x.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cmd640.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cs5520.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
pata_cs5530.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cs5535.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cs5536.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_cypress.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_efar.c pata_efar: fix PIO2 underclocking 2009-06-05 14:40:52 -04:00
pata_hpt3x2n.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_hpt3x3.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_hpt37x.c pata_hpt37x: fix HPT370 DMA timeouts 2009-04-16 15:21:15 -04:00
pata_hpt366.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_icside.c Merge branch 'origin' into devel 2009-03-28 20:29:51 +00:00
pata_isapnp.c [libata] Improve timeout handling 2009-03-24 22:52:39 -04:00
pata_it821x.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_it8213.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_ixp4xx_cf.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
pata_jmicron.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_legacy.c pata_legacy: wait for async probing 2009-06-05 14:40:46 -04:00
pata_marvell.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_mpc52xx.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_mpiix.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_netcell.c pata_netcell: Fix typo 2009-06-08 09:12:28 -07:00
pata_ninja32.c ata: Report 16/32bit PIO as best we can 2009-04-16 15:28:23 -04:00
pata_ns87410.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_ns87415.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_octeon_cf.c libata: Remove some redundant casts from pata_octeon_cf.c 2009-04-06 20:00:35 -04:00
pata_of_platform.c
pata_oldpiix.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_opti.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_optidma.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_pcmcia.c [libata] Drain data on errors 2009-03-24 22:48:26 -04:00
pata_pdc202xx_old.c pata_pdc202xx_old: fix UDMA33 handling 2009-05-11 14:30:07 -04:00
pata_pdc2027x.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_platform.c
pata_qdi.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_radisys.c pata_radisys: fix mwdma_mask to exclude mwdma0 2009-03-24 22:13:32 -04:00
pata_rb532_cf.c pata-rb532-cf: platform_get_irq() fix ignored failure 2009-03-24 22:16:34 -04:00
pata_rz1000.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_sc1200.c pata_sc1200: Activate secondary channel 2009-03-24 22:45:37 -04:00
pata_scc.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_sch.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_serverworks.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_sil680.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_sis.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_sl82c105.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_triflex.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pata_via.c pata_via: Cache and rewrite the device bit 2009-04-17 19:04:30 -04:00
pata_winbond.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
pdc_adma.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sata_fsl.c sata_fsl: Fix the command description of FSL SATA controller 2009-05-15 14:14:08 -04:00
sata_inic162x.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sata_mv.c sata_mv: use new sata phy register settings for new devices 2009-05-11 14:29:41 -04:00
sata_nv.c [libata] Improve timeout handling 2009-03-24 22:52:39 -04:00
sata_promise.c [libata] Improve timeout handling 2009-03-24 22:52:39 -04:00
sata_promise.h
sata_qstor.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sata_sil24.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sata_sil.c sata_sil: enable 32-bit PIO 2009-06-10 07:50:17 -04:00
sata_sis.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
sata_svw.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
sata_sx4.c sata_sx4: speed up ECC initialization 2009-06-10 07:50:17 -04:00
sata_uli.c [libata] convert drivers to use ata.h mode mask defines 2009-03-24 22:13:27 -04:00
sata_via.c [libata] sata_via: kill uninit'd var warning 2009-04-13 04:09:34 -04:00
sata_vsc.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sis.h