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| author | Heiko Carstens | 2016-02-12 12:40:31 +0100 |
|---|---|---|
| committer | Martin Schwidefsky | 2016-02-17 09:05:04 +0100 |
| commit | 52499d93d6dec3872de3b982219af6d4c182a452 (patch) | |
| tree | 4565561ab51516a02a27bf26438b5de2bd2fc5db /drivers/s390/block/dasd.c | |
| parent | s390/diag: avoid lockdep recursion (diff) | |
| download | kernel-qcow2-linux-52499d93d6dec3872de3b982219af6d4c182a452.tar.gz kernel-qcow2-linux-52499d93d6dec3872de3b982219af6d4c182a452.tar.xz kernel-qcow2-linux-52499d93d6dec3872de3b982219af6d4c182a452.zip | |
s390/maccess: reduce stnsm instructions
When fixing the DAT off bug ("s390: fix DAT off memory access, e.g.
on kdump") both Christian and I missed that we can save an additional
stnsm instruction.
This saves us a couple of cycles which could improve the speed of
memcpy_real.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block/dasd.c')
0 files changed, 0 insertions, 0 deletions