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From: Christian Borntraeger <borntraeger@de.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>
Cc: KVM <kvm@vger.kernel.org>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	linux-s390 <linux-s390@vger.kernel.org>,
	Janosch Frank <frankja@linux.vnet.ibm.com>,
	David Hildenbrand <david@redhat.com>,
	Michael Mueller <mimu@linux.vnet.ibm.com>
Subject: [PATCH 03/12] s390/bitops: add test_and_clear_bit_inv()
Date: Tue, 16 Jan 2018 21:02:08 +0100	[thread overview]
Message-ID: <20180116200217.211897-4-borntraeger@de.ibm.com> (raw)
In-Reply-To: <20180116200217.211897-1-borntraeger@de.ibm.com>

From: Jens Freimann <jfrei@linux.vnet.ibm.com>

This patch adds a MSB0 bit numbering version of test_and_clear_bit().

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 31e400c1a1f3..86e5b2fdee3c 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -261,6 +261,11 @@ static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
 	return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
 }
 
+static inline int test_and_clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+{
+	return test_and_clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
 static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
 {
 	return __set_bit(nr ^ (BITS_PER_LONG - 1), ptr);
-- 
2.13.4

  parent reply	other threads:[~2018-01-16 20:02 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-16 20:02 [PATCH 00/12] KVM: s390: exitless interrupt support for KVM Christian Borntraeger
2018-01-16 20:02 ` [PATCH 01/12] KVM: s390: reverse bit ordering of irqs in pending mask Christian Borntraeger
2018-01-16 20:18   ` David Hildenbrand
2018-01-17 10:12     ` Christian Borntraeger
2018-01-18 16:50   ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 02/12] KVM: s390: define GISA format-0 data structure Christian Borntraeger
2018-01-16 20:25   ` David Hildenbrand
2018-01-17  7:57     ` Heiko Carstens
2018-01-18 15:49       ` Michael Mueller
2018-01-18 15:49         ` Michael Mueller
2018-01-18 20:47   ` David Hildenbrand
2018-01-19 10:12     ` Heiko Carstens
2018-01-19 10:17       ` David Hildenbrand
2018-01-19 10:20         ` Heiko Carstens
2018-01-19 10:29           ` Cornelia Huck
2018-01-19 11:28             ` David Hildenbrand
2018-01-16 20:02 ` Christian Borntraeger [this message]
2018-01-16 20:13   ` [PATCH 03/12] s390/bitops: add test_and_clear_bit_inv() David Hildenbrand
2018-01-18 16:54   ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 04/12] KVM: s390: implement GISA IPM related primitives Christian Borntraeger
2018-01-17 14:35   ` David Hildenbrand
2018-01-18 14:29     ` Michael Mueller
2018-01-18 14:33       ` David Hildenbrand
2018-01-18 15:58         ` Michael Mueller
2018-01-18 20:45           ` David Hildenbrand
2018-01-19 10:11             ` Heiko Carstens
2018-01-19 10:16               ` David Hildenbrand
2018-01-19 10:17                 ` Christian Borntraeger
2018-01-16 20:02 ` [PATCH 05/12] s390/css: expose the AIV facility Christian Borntraeger
2018-01-17 15:19   ` David Hildenbrand
2018-01-18 12:02     ` Michael Mueller
2018-01-18 17:54       ` Cornelia Huck
2018-01-25 11:42         ` Christian Borntraeger
2018-01-25 12:00           ` Cornelia Huck
2018-01-25 12:04             ` Christian Borntraeger
2018-01-25 15:13               ` Heiko Carstens
2018-01-16 20:02 ` [PATCH 06/12] KVM: s390: exploit GISA and AIV for emulated interrupts Christian Borntraeger
2018-01-17  8:14   ` Heiko Carstens
2018-01-18 18:10   ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 07/12] KVM: s390: abstract adapter interruption word generation from ISC Christian Borntraeger
2018-01-18 18:11   ` Cornelia Huck
2018-01-16 20:02 ` [PATCH 08/12] KVM: s390: add GISA interrupts to FLIC ioctl interface Christian Borntraeger
2018-01-16 20:02 ` [PATCH 09/12] KVM: s390: make kvm_s390_get_io_int() aware of GISA Christian Borntraeger
2018-01-16 20:02 ` [PATCH 10/12] KVM: s390: activate GISA for emulated interrupts Christian Borntraeger
2018-01-16 20:02 ` [PATCH 11/12] s390/sclp: expose the GISA format facility Christian Borntraeger
2018-01-16 20:13   ` David Hildenbrand
2018-01-16 20:02 ` [PATCH 12/12] KVM: s390: introduce the format-1 GISA Christian Borntraeger

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