linux/drivers/scsi/libsas
Tejun Heo 3e4ec3443f libata: kill ATA_FLAG_DISABLED
ATA_FLAG_DISABLED is only used by drivers which don't use
->error_handler framework and is largely broken.  Its only meaningful
function is to make irq handlers skip processing if the flag is set,
which is largely useless and even harmful as it makes those ports more
likely to cause IRQ storms.

Kill ATA_FLAG_DISABLED and makes the callers disable attached devices
instead.  ata_port_probe() and ata_port_disable() which manipulate the
flag are also killed.

This simplifies condition check in IRQ handlers.  While updating IRQ
handlers, remove ap NULL check as libata guarantees consecutive port
allocation (unoccupied ports are initialized with dummies) and
long-obsolete ATA_QCFLAG_ACTIVE check (checked by ata_qc_from_tag()).

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-17 22:49:02 -04:00
..
Kconfig [SCSI] libsas: add host SMP processing 2008-01-11 18:29:11 -06:00
Makefile [SCSI] libsas: abstract STP task status into a function 2008-01-25 11:47:23 -06:00
sas_ata.c [SCSI] fix locking around blk_abort_request() 2010-05-01 14:17:19 -05:00
sas_discover.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sas_dump.c [SCSI] struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-02 10:22:16 -06:00
sas_dump.h [SCSI] aic94xx: new driver 2006-08-29 09:52:29 -05:00
sas_event.c [SCSI] libsas: Add SAS_HA state flags to avoid queueing events while unloading 2007-01-13 16:21:53 -06:00
sas_expander.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sas_host_smp.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sas_init.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sas_internal.h block: unify request timeout handling 2008-10-09 08:56:13 +02:00
sas_phy.c WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
sas_port.c [SCSI] libsas: reuse the original port when hotplugging phys in wide ports 2009-07-16 12:50:44 -05:00
sas_scsi_host.c libata: kill ATA_FLAG_DISABLED 2010-05-17 22:49:02 -04:00
sas_task.c [SCSI] libsas: abstract STP task status into a function 2008-01-25 11:47:23 -06:00