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authorBabu Moger <babu.moger@oracle.com>2017-05-24 17:55:15 -0600
committerDavid S. Miller <davem@davemloft.net>2017-05-25 12:06:52 -0700
commit145d978585977438ebb55079487827006c604e39 (patch)
tree8c2db73ea429d948a46c6b8577ce6c40a3fd18bd /arch/sparc/Kconfig
parent79d39e2bab60d18a68a5abc00be4506864397efc (diff)
downloadlinux-145d978585977438ebb55079487827006c604e39.tar.bz2
arch/sparc: Enable queued spinlock support for SPARC
This patch makes the necessary changes in SPARC architecture to enable queued spinlock support. Here are some of the earlier discussions about this feature. https://lwn.net/Articles/561775/ https://lwn.net/Articles/590243/ Cleaned-up the spinlock_64.h. The definitions of arch_spin_xxx are replaced by the function in <asm-generic/qspinlock.h> Signed-off-by: Babu Moger <babu.moger@oracle.com> Reviewed-by: HÃ¥kon 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> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/Kconfig')
-rw-r--r--arch/sparc/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0e8065207596..78af684f63b9 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -84,6 +84,7 @@ config SPARC64
select HAVE_NMI
select HAVE_REGS_AND_STACK_ACCESS_API
select ARCH_USE_QUEUED_RWLOCKS
+ select ARCH_USE_QUEUED_SPINLOCKS
config ARCH_DEFCONFIG
string