| commit | 987ad70a4d90cf0e70dba43ece02c2e2219e092c | |
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Tue, 10 Jul 2007 09:24:18 +0000 (10 11:24 +0200) | ||
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| Tue, 10 Jul 2007 09:24:51 +0000 (10 11:24 +0200) | ||
| tree | 5597a511a31647acd7a11160d9db60a53f388d80 | treesnapshot (tar.gz zip) |
| parent | 3d62149f025134cd69c2fef2a2ccfac3c3c2054f | commitdiff |
[S390] system call optimization.
After the in-kernel system call has been remove the system call path
can be optimized. The problem state bit of the old psw is always set
between system_call and sysc_do_svc. SAVE_ALL_SVC uses this information
to avoid two instructions.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
After the in-kernel system call has been remove the system call path
can be optimized. The problem state bit of the old psw is always set
between system_call and sysc_do_svc. SAVE_ALL_SVC uses this information
to avoid two instructions.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
| arch/s390/kernel/entry.S | diffblobblamehistory | |
| arch/s390/kernel/entry64.S | diffblobblamehistory |