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| author | Michael Ellerman <michael@ellerman.id.au> | 2011-06-29 19:16:59 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-07-01 13:48:55 +1000 |
| commit | ac5f89c7d87f6f2fb7073723fc943488d9c3479d (patch) | |
| tree | f7373ad0d4af2c937a420f3909284814d4487535 /arch/powerpc/Kconfig | |
| parent | 87fa35dd881fd61a2a8166892366f2c22c34a1fa (diff) | |
| download | talos-op-linux-ac5f89c7d87f6f2fb7073723fc943488d9c3479d.tar.gz talos-op-linux-ac5f89c7d87f6f2fb7073723fc943488d9c3479d.zip | |
powerpc: Add jump label support
This patch adds support for the new "jump label" feature.
Unlike x86 and sparc we just merrily patch the code with no locks etc,
as far as I know this is safe, but I'm not really sure what the x86/sparc
code is protecting against so maybe it's not.
I also don't see any reason for us to implement the poke_early() routine,
even though sparc does.
[BenH: Updated the patch to upstream generic changes]
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2729c6663d8a..c15f2e61e4fd 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -134,6 +134,7 @@ config PPC select GENERIC_IRQ_SHOW_LEVEL select HAVE_RCU_TABLE_FREE if SMP select HAVE_SYSCALL_TRACEPOINTS + select HAVE_ARCH_JUMP_LABEL config EARLY_PRINTK bool |
