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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-06-22 17:27:48 +0200 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-22 09:58:04 +0200 |
commit | a359bb1190f213d282f4934fd461cf440d87dae0 (patch) | |
tree | c789b991de5e54dc3ccdb3070c53dd801e52122b /arch/s390/kernel/irq.c | |
parent | d0fc41071a6884d0a10077bb6dc87f9267f32dd6 (diff) |
s390/kernel: squeeze a few more cycles out of the system call handler
Reorder the instructions of UPDATE_VTIME to improve superscalar execution,
remove duplicate checks for problem-state from the asynchronous interrupt
handlers, and move the check for problem-state from the synchronous
exit path to the program check path as it is only needed for program
checks inside the kernel.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/irq.c')
0 files changed, 0 insertions, 0 deletions