diff options
| author | Pan Xinhui | 2016-11-02 10:08:28 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2016-11-22 12:48:05 +0100 |
| commit | d9345c65eb7930ac6755cf593ee7686f4029ccf4 (patch) | |
| tree | 997e488123a15a9725bd6c6ee454500f4b63a66d /arch/Kconfig | |
| parent | Merge branch 'linus' into locking/core, to pick up fixes (diff) | |
| download | kernel-qcow2-linux-d9345c65eb7930ac6755cf593ee7686f4029ccf4.tar.gz kernel-qcow2-linux-d9345c65eb7930ac6755cf593ee7686f4029ccf4.tar.xz kernel-qcow2-linux-d9345c65eb7930ac6755cf593ee7686f4029ccf4.zip | |
sched/core: Introduce the vcpu_is_preempted(cpu) interface
This patch is the first step to add support to improve lock holder
preemption beaviour.
vcpu_is_preempted(cpu) does the obvious thing: it tells us whether a
vCPU is preempted or not.
Defaults to false on architectures that don't support it.
Suggested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Pan Xinhui <xinhui.pan@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
[ Translated the changelog to English. ]
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: David.Laight@ACULAB.COM
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: benh@kernel.crashing.org
Cc: boqun.feng@gmail.com
Cc: bsingharora@gmail.com
Cc: dave@stgolabs.net
Cc: kernellwp@gmail.com
Cc: konrad.wilk@oracle.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: mpe@ellerman.id.au
Cc: paulmck@linux.vnet.ibm.com
Cc: paulus@samba.org
Cc: rkrcmar@redhat.com
Cc: virtualization@lists.linux-foundation.org
Cc: will.deacon@arm.com
Cc: xen-devel-request@lists.xenproject.org
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/1478077718-37424-2-git-send-email-xinhui.pan@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/Kconfig')
0 files changed, 0 insertions, 0 deletions