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[PATCH v3 2/7] kernel/locking: Fix compile error with qrwlock.c

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Saw these compile errors on SPARC when queued rwlock feature is enabled.

 CC      kernel/locking/qrwlock.o
kernel/locking/qrwlock.c: In function ‘queued_read_lock_slowpath’:
kernel/locking/qrwlock.c:89: error: implicit declaration of function ‘arch_spin_lock’
kernel/locking/qrwlock.c:102: error: implicit declaration of function ‘arch_spin_unlock’
make[4]: *** [kernel/locking/qrwlock.o] Error 1

Include spinlock.h in qrwlock.c to fix it.

Signed-off-by: Babu Moger <babu.moger@oracle.com>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: Shannon Nelson <shannon.nelson@oracle.com>
Reviewed-by: Vijay Kumar <vijay.ac.kumar@oracle.com>
---
 kernel/locking/qrwlock.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/locking/qrwlock.c b/kernel/locking/qrwlock.c
index cc3ed0c..2655f26 100644
--- a/kernel/locking/qrwlock.c
+++ b/kernel/locking/qrwlock.c
@@ -20,6 +20,7 @@
 #include <linux/cpumask.h>
 #include <linux/percpu.h>
 #include <linux/hardirq.h>
+#include <linux/spinlock.h>
 #include <asm/qrwlock.h>
 
 /*
-- 
1.7.1

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Thread

[PATCH v3 0/7] Enable queued rwlock and queued spinlock for SPARC Babu Moger <babu.moger@oracle.com> - 2017-05-23 23:50 +0200
  [PATCH v3 2/7] kernel/locking: Fix compile error with qrwlock.c Babu Moger <babu.moger@oracle.com> - 2017-05-23 23:50 +0200
  [PATCH v3 6/7] arch/sparc: Introduce xchg16 for SPARC Babu Moger <babu.moger@oracle.com> - 2017-05-23 23:50 +0200
  [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN Babu Moger <babu.moger@oracle.com> - 2017-05-23 23:50 +0200
    Re: [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN Geert Uytterhoeven <geert@linux-m68k.org> - 2017-05-24 11:50 +0200
      Re: [PATCH v3 3/7] arch/sparc: Define config parameter CPU_BIG_ENDIAN Babu Moger <babu.moger@oracle.com> - 2017-05-24 16:40 +0200
  [PATCH v3 7/7] arch/sparc: Enable queued spinlock support for SPARC Babu Moger <babu.moger@oracle.com> - 2017-05-23 23:50 +0200

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