diff options
| author | Babu Moger <babu.moger@oracle.com> | 2017-05-24 17:55:15 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-25 12:06:52 -0700 |
| commit | 145d978585977438ebb55079487827006c604e39 (patch) | |
| tree | 8c2db73ea429d948a46c6b8577ce6c40a3fd18bd /arch/sparc/Kconfig | |
| parent | 79d39e2bab60d18a68a5abc00be4506864397efc (diff) | |
| download | linux-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: 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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/Kconfig')
| -rw-r--r-- | arch/sparc/Kconfig | 1 |
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 |