Tejun Heo 729a6a300e libata: set queue DMA alignment to sector size for ATAPI too ... ata_pio_sectors() expects buffer for each sector to be contained in a single page; otherwise, it ends up overrunning the first page. This is achieved by setting queue DMA alignment. If sector_size is smaller than PAGE_SIZE and all buffers are sector_size aligned, buffer for each sector is always contained in a single page. This wasn't applied to ATAPI devices but IDENTIFY_PACKET is executed as ATA_PROT_PIO and thus uses ata_pio_sectors(). Newer versions of udev issue IDENTIFY_PACKET with unaligned buffer triggering the problem and causing oops. This patch fixes the problem by setting sdev->sector_size to ATA_SECT_SIZE on ATATPI devices and always setting DMA alignment to sector_size. While at it, add a warning for the unlikely but still possible scenario where sector_size is larger than PAGE_SIZE, in which case the alignment wouldn't be enough. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: John Stanley <jpsinthemix@verizon.net> Tested-by: John Stanley <jpsinthemix@verizon.net> Cc: stable@kernel.org Signed-off-by: Jeff Garzik <jgarzik@redhat.com>		2011-01-28 03:16:20 -05:00
..
Kconfig	kconfig: rename CONFIG_EMBEDDED to CONFIG_EXPERT	2011-01-20 17:02:05 -08:00
Makefile	[libata] new driver acard_ahci, for ATP8620 host controller	2011-01-05 19:43:22 -05:00
acard-ahci.c	[libata] new driver acard_ahci, for ATP8620 host controller	2011-01-05 19:43:22 -05:00
ahci.c	ahci: add HFLAG_YES_FBS and apply it to 88SE9128	2011-01-28 03:07:04 -05:00
ahci.h	[libata] new driver acard_ahci, for ATP8620 host controller	2011-01-05 19:43:22 -05:00
ahci_platform.c	libata: reimplement link power management	2010-10-21 20:21:04 -04:00
ata_generic.c	ata: Intel IDE-R support	2010-10-21 20:21:05 -04:00
ata_piix.c	ata_piix: Add device ID for ICH4-L	2010-10-21 20:21:05 -04:00
libahci.c	[libata] new driver acard_ahci, for ATP8620 host controller	2011-01-05 19:43:22 -05:00
libata-acpi.c	gcc-4.6: ACPI: fix unused but set variables in ACPI	2010-08-15 00:53:08 -04:00
libata-core.c	libata: DVR-212D can't do SETXFER DVD-RW DVR-212D	2011-01-28 03:16:04 -05:00
libata-eh.c	libata: issue DIPM enable commands with LPM state updated	2010-12-24 13:34:34 -05:00
libata-pmp.c	libata: implement LPM support for port multipliers	2010-10-21 20:21:04 -04:00
libata-scsi.c	libata: set queue DMA alignment to sector size for ATAPI too	2011-01-28 03:16:20 -05:00
libata-sff.c	Merge branch 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq	2011-01-07 16:58:04 -08:00
libata-transport.c	drivers/ata/libata-transport.c: include linux/slab.h	2010-10-21 20:21:04 -04:00
libata-transport.h	[libata] Add ATA transport class	2010-10-21 20:21:03 -04:00
libata.h	libata: implement cross-port EH exclusion	2010-10-21 20:21:05 -04:00
pata_acpi.c	…
pata_ali.c	…
pata_amd.c	…
pata_artop.c	pata_artop: Fix device ID parity check	2010-09-09 14:19:18 -04:00
pata_at32.c	…
pata_at91.c	…
pata_atiixp.c	…
pata_atp867x.c	…
pata_bf54x.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2010-10-24 13:41:39 -07:00
pata_cmd64x.c	pata_cmd64x: revert commit d62f5576	2010-08-25 19:24:15 -04:00
pata_cmd640.c	pata_cmd640: implement sff_irq_check() method	2010-10-21 20:21:05 -04:00
pata_cs5520.c	…
pata_cs5530.c	…
pata_cs5535.c	…
pata_cs5536.c	pata_cs5536: avoid implicit MSR API inclusion on x86-64	2010-12-26 19:42:15 -05:00
pata_cypress.c	…
pata_efar.c	…
pata_hpt3x2n.c	pata_hpt{37x|3x2n}: use pr_*(DRV_NAME ...) instead of printk(KERN_* ...)	2011-01-28 03:07:04 -05:00
pata_hpt3x3.c	…
pata_hpt37x.c	pata_hpt37x: inherit prereset() method for HPT374	2011-01-28 03:07:04 -05:00
pata_hpt366.c	pata_hpt{366|37x}: use pr_warning(...) instead of printk(KERN_WARNING ...)	2011-01-28 03:07:04 -05:00
pata_icside.c	…
pata_isapnp.c	…
pata_it821x.c	Update broken web addresses in the kernel.	2010-10-18 11:03:14 +02:00
pata_it8213.c	…
pata_ixp4xx_cf.c	…
pata_jmicron.c	…
pata_legacy.c	pata_legacy: fix CONFIG_PATA_WINBOND_VLB_MODULE test	2010-11-12 17:10:53 -05:00
pata_macio.c	…
pata_marvell.c	…
pata_mpc52xx.c	pata_mpc52xx: inherit from ata_bmdma_port_ops	2011-01-28 03:07:04 -05:00
pata_mpiix.c	…
pata_netcell.c	…
pata_ninja32.c	…
pata_ns87410.c	…
pata_ns87415.c	…
pata_octeon_cf.c	drivers/ata/pata_octeon_cf.c: delete double assignment	2010-11-12 17:10:55 -05:00
pata_of_platform.c	…
pata_oldpiix.c	…
pata_opti.c	…
pata_optidma.c	…
pata_palmld.c	…
pata_pcmcia.c	pcmcia: move driver name to struct pcmcia_driver	2010-09-29 17:20:24 +02:00
pata_pdc202xx_old.c	pata_pdc202xx_old: implement sff_irq_check() method	2010-10-21 20:21:06 -04:00
pata_pdc2027x.c	…
pata_piccolo.c	…
pata_platform.c	…
pata_pxa.c	…
pata_qdi.c	…
pata_radisys.c	…
pata_rb532_cf.c	…
pata_rdc.c	…
pata_rz1000.c	…
pata_samsung_cf.c	libata: add @ap to ata_wait_register() and introduce ata_msleep()	2010-10-21 20:21:05 -04:00
pata_sc1200.c	…
pata_scc.c	libata: add @ap to ata_wait_register() and introduce ata_msleep()	2010-10-21 20:21:05 -04:00
pata_sch.c	…
pata_serverworks.c	…
pata_sil680.c	pata_sil680: implement sff_irq_check() method	2010-10-21 20:21:06 -04:00
pata_sis.c	…
pata_sl82c105.c	pata_sl82c105: implement sff_irq_check() method	2010-10-21 20:21:06 -04:00
pata_triflex.c	…
pata_via.c	libata,pata_via: revert ata_wait_idle() removal from ata_sff/via_tf_load()	2010-09-09 22:27:44 -04:00
pdc_adma.c	…
sata_dwc_460ex.c	[libata] sata_dwc_460ex: signdness bug	2010-08-25 19:24:16 -04:00
sata_fsl.c	libata: add @ap to ata_wait_register() and introduce ata_msleep()	2010-10-21 20:21:05 -04:00
sata_inic162x.c	libata: add @ap to ata_wait_register() and introduce ata_msleep()	2010-10-21 20:21:05 -04:00
sata_mv.c	libata: always use ata_qc_complete_multiple() for NCQ command completions	2010-10-21 20:21:03 -04:00
sata_nv.c	libata: always use ata_qc_complete_multiple() for NCQ command completions	2010-10-21 20:21:03 -04:00
sata_promise.c	…
sata_promise.h	…
sata_qstor.c	…
sata_sil.c	…
sata_sil24.c	libata: add @ap to ata_wait_register() and introduce ata_msleep()	2010-10-21 20:21:05 -04:00
sata_sis.c	…
sata_svw.c	…
sata_sx4.c	…
sata_uli.c	…
sata_via.c	sata_via: apply magic FIFO fix to vt6420 too	2010-11-19 13:16:26 -05:00
sata_vsc.c	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
sis.h	…