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(parent: c9b8519) | patch
s390/smp: only send external call ipi if needed
authorHeiko Carstens <heiko.carstens@de.ibm.com>
Tue, 3 Dec 2013 09:06:29 +0000 (10:06 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 12 Dec 2013 10:00:04 +0000 (11:00 +0100)
commit8a2ffcf3de26f28fb66d8aac78336eb13fbf9a21
treeeda3f63423ccc28486ec29328e262e1bee76e63btree | snapshot
parentc9b851905dba3a688dd75970df02305518f9554acommit | diff
s390/smp: only send external call ipi if needed

If the per cpu ec_mask bit of the receiving cpu is already set there is
no need to send an ipi, since a different cpu has already sent an ipi
and the receiving cpu has not yet executed the external call ipi handler.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
arch/s390/kernel/smp.c diff | blob | history
Linux kernel for KaRo TX COM modules