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432ac5e04b
linux/drivers/s390/cio
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Jan Glauber 432ac5e04b [S390] qdio: optimize cache line usage of struct qdio_irq 
Remove a memset hack that relied on the internal layout of the
qdio_irq struct and move the per device statistics data into an own
cache line to avoid cache line bashing between the inbound and the
outbound queue tasklets. Also reduce the number of allocated queues
from 32 to 4 which is the current maximum. That saves a cache line
in struct qdio_irq.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-02-26 22:37:31 +01:00
..
airq.c [S390] cio: airq - fix array boundary 2009-03-26 15:24:14 +01:00
blacklist.c [S390] Fix memory leak in /proc/cio_ignore 2009-10-06 10:35:07 +02:00
blacklist.h
ccwgroup.c const: constify remaining dev_pm_ops 2009-12-15 08:53:25 -08:00
ccwreq.c [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
chp.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
chp.h [S390] cio: Repair chpid event handling. 2008-07-14 10:02:11 +02:00
chsc_sch.c [S390] cio: fix storage key handling 2010-02-26 22:37:30 +01:00
chsc_sch.h [S390] cio: Add chsc subchannel driver. 2008-07-14 10:02:12 +02:00
chsc.c [S390] cio: fix storage key handling 2010-02-26 22:37:30 +01:00
chsc.h [S390] cio: move scsw helper functions to header file 2009-09-11 10:29:36 +02:00
cio_debug.h [S390] cio: Remove cio_msg kernel parameter. 2008-05-07 09:23:01 +02:00
cio.c nohz: Introduce arch_needs_cpu 2009-11-05 07:53:53 +01:00
cio.h [S390] cio: introduce subchannel todos 2009-12-07 12:51:30 +01:00
cmf.c tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
crw.c [S390] cio: wait for channel report 2010-02-26 22:37:29 +01:00
css.c [S390] cio: trigger subchannel event at resume time 2010-02-26 22:37:30 +01:00
css.h [S390] cio: trigger subchannel event at resume time 2010-02-26 22:37:30 +01:00
device_fsm.c [S390] ccw_device_notify: improve return codes 2010-02-26 22:37:29 +01:00
device_id.c [S390] cio: improve error recovery for internal I/Os 2009-12-07 12:51:33 +01:00
device_ops.c [S390] cio: make steal lock procedure more robust 2009-12-07 12:51:32 +01:00
device_pgid.c [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
device_status.c [S390] cio: remove intretry flag 2009-12-07 12:51:31 +01:00
device.c [S390] cio: trigger subchannel event at resume time 2010-02-26 22:37:30 +01:00
device.h [S390] ccw_device_notify: improve return codes 2010-02-26 22:37:29 +01:00
fcx.c [S390] drivers: Correct size given to memset 2009-12-18 17:43:32 +01:00
idset.c [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
idset.h [S390] cio: introduce consistent subchannel scanning 2009-09-22 22:58:42 +02:00
io_sch.h [S390] cio: fix channel path vary 2009-12-18 17:43:32 +01:00
ioasm.h [S390] cio: inline assembly cleanup 2008-10-10 21:33:53 +02:00
isc.c [S390] cio: introduce isc_(un)register functions. 2008-07-14 10:02:11 +02:00
itcw.c [S390] cio: provide helper functions for fcx enabled I/O 2008-07-14 10:02:08 +02:00
Makefile [S390] qdio: convert global statistics to per-device stats 2010-01-04 09:05:58 +01:00
qdio_debug.c [S390] qdio: account processed SBAL during queue scan 2010-02-26 22:37:30 +01:00
qdio_debug.h [S390] qdio: rework debug feature logging 2008-12-25 13:38:59 +01:00
qdio_main.c [S390] qdio: account processed SBAL during queue scan 2010-02-26 22:37:30 +01:00
qdio_setup.c [S390] qdio: optimize cache line usage of struct qdio_irq 2010-02-26 22:37:31 +01:00
qdio_thinint.c [S390] cio: fix storage key handling 2010-02-26 22:37:30 +01:00
qdio.h [S390] qdio: optimize cache line usage of struct qdio_irq 2010-02-26 22:37:31 +01:00