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| author | Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | 2008-01-26 16:10:48 +0300 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2008-01-26 16:11:03 +0300 |
| commit | e82a1567e4b22eb035da2499d20ddd573c9acf75 (patch) | |
| tree | 0cf697f96e734a846ee1cbc598beebcc7be10117 /include/asm-xtensa/dma.h | |
| parent | 4beee64685e116b01c47655daf6d88df87e053c8 (diff) | |
| download | linux-e82a1567e4b22eb035da2499d20ddd573c9acf75.tar.xz | |
[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>
Diffstat (limited to 'include/asm-xtensa/dma.h')
0 files changed, 0 insertions, 0 deletions