]> err.no Git - linux-2.6/commit
[S390] cio: replace subchannel evaluation queue with bitmap
authorPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Fri, 27 Apr 2007 14:01:34 +0000 (16:01 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Fri, 27 Apr 2007 14:01:40 +0000 (16:01 +0200)
commit83b3370c79b91b9be3f6540c3c914e689134b45f
treead7c062b260c0259c74e45ff869208c1ad139629
parent387b734fc2b55f776b192c7afdfd892ba42347d4
[S390] cio: replace subchannel evaluation queue with bitmap

Use a bitmap for indicating which subchannels require evaluation
instead of allocating memory for each evaluation request. This
approach reduces memory consumption during recovery in case of
massive evaluation request occurrence and removes the need for
memory allocation failure handling.

Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
drivers/s390/cio/Makefile
drivers/s390/cio/chp.c
drivers/s390/cio/chp.h
drivers/s390/cio/chsc.c
drivers/s390/cio/chsc.h
drivers/s390/cio/css.c
drivers/s390/cio/css.h
drivers/s390/cio/device_fsm.c
drivers/s390/cio/idset.c [new file with mode: 0644]
drivers/s390/cio/idset.h [new file with mode: 0644]
drivers/s390/s390mach.c