| commit | 2688905e6a9b3647bf7b452cb0ff2bdb166bd8fe | [log] [tgz] |
|---|---|---|
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | Wed May 07 09:22:52 2008 +0200 |
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | Wed May 07 09:23:00 2008 +0200 |
| tree | 389b9c29eaaa7eb49a9e7d3bb601959fb9d27af8 | |
| parent | c0a18111e571138747a98af18b3a2124df56a0d1 [diff] |
[S390] s390: Optimize user and work TIF check On return from syscall or interrupt, we have to check if we return to userspace (likely) and if there is work todo (less likely) to decide if we handle the work. We can optimize this check: we first check for the less likely work case and then check for userspace. This patch is also a preparation for an additional patch, that fixes a bug in KVM dealing with cpu bound guests. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>