| commit | e82a1567e4b22eb035da2499d20ddd573c9acf75 | [log] [tgz] |
|---|---|---|
| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | Sat Jan 26 14:10:48 2008 +0100 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Sat Jan 26 14:11:03 2008 +0100 |
| tree | 0cf697f96e734a846ee1cbc598beebcc7be10117 | |
| parent | 4beee64685e116b01c47655daf6d88df87e053c8 [diff] |
[S390] cio: reduce cpu utilization during device scan Minimize calls to cpu intensive function get_subchannel_by_schid() by introducing function for_each_subchannel_staged() which temporarily caches the information about registered subchannels in a bitmap. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>