| commit | 10c1031f706bbe0690d84cdbccad15b11c6dc661 | |
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Fri, 27 Apr 2007 14:01:43 +0000 (27 16:01 +0200) | ||
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Fri, 27 Apr 2007 14:01:43 +0000 (27 16:01 +0200) | ||
| tree | 791a21c066ed667676422395b4145c53a1dc2c28 | treesnapshot (tar.gz zip) |
| parent | c0007f1a65762eaf55633d403b380130ec60adad | commitdiff |
[S390] Minor fault path optimization.
The minor fault path has grown a lot in terms of cycles. In particular
the kprobes hook is very costly. Optimize the path to save a couple of
cycles. If kprobes is enabled more than 300 cycles can be avoided if
kprobes_running() is false.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
The minor fault path has grown a lot in terms of cycles. In particular
the kprobes hook is very costly. Optimize the path to save a couple of
cycles. If kprobes is enabled more than 300 cycles can be avoided if
kprobes_running() is false.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
| arch/s390/mm/fault.c | diffblobblamehistory |