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authorBabu Moger <babu.moger@oracle.com>2017-05-24 17:55:13 -0600
committerDavid S. Miller <davem@davemloft.net>2017-05-25 12:06:51 -0700
commita37594f198363fd9321ece54440336fd4b2a9c8e (patch)
tree591a2cc525ac40ca81840cd1b93e615dc5dd9679 /arch/sparc/Kconfig
parenta12ee2349312d7112b9b7c6ac2e70c5ec2ca334e (diff)
downloadop-kernel-dev-a37594f198363fd9321ece54440336fd4b2a9c8e.zip
op-kernel-dev-a37594f198363fd9321ece54440336fd4b2a9c8e.tar.gz
arch/sparc: Enable queued rwlocks for SPARC
Enable queued rwlocks for SPARC. Here are the discussions on this feature when this was introduced. https://lwn.net/Articles/572765/ https://lwn.net/Articles/582200/ Cleaned-up the arch_read_xxx and arch_write_xxx definitions in spinlock_64.h. These routines are replaced by the functions in include/asm-generic/qrwlock.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 eb213b5..0e80652 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -83,6 +83,7 @@ config SPARC64
select ARCH_SUPPORTS_ATOMIC_RMW
select HAVE_NMI
select HAVE_REGS_AND_STACK_ACCESS_API
+ select ARCH_USE_QUEUED_RWLOCKS
config ARCH_DEFCONFIG
string
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