diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-12-07 00:39:39 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-12-07 00:39:39 +0300 |
| commit | d6eabce2577a695197e9433302fd6a9f0e1a7666 (patch) | |
| tree | e5c5bcc7803879d5d911cc8faeb74a946c242395 /arch/powerpc/lib/code-patching.c | |
| parent | 6e948c67c47211afcc65c9ccdeedbd5db5c57077 (diff) | |
| parent | 328b4ed93b69a6f2083d52f31a240a09e5de386a (diff) | |
| download | linux-d6eabce2577a695197e9433302fd6a9f0e1a7666.tar.xz | |
Merge branch 'linus' into perf/urgent, to synchronize UAPI headers
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index c9de03e0c1f1..d469224c4ada 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -21,6 +21,7 @@ #include <asm/tlbflush.h> #include <asm/page.h> #include <asm/code-patching.h> +#include <asm/setup.h> static int __patch_instruction(unsigned int *addr, unsigned int instr) { @@ -146,11 +147,8 @@ int patch_instruction(unsigned int *addr, unsigned int instr) * During early early boot patch_instruction is called * when text_poke_area is not ready, but we still need * to allow patching. We just do the plain old patching - * We use slab_is_available and per cpu read * via this_cpu_read - * of text_poke_area. Per-CPU areas might not be up early - * this can create problems with just using this_cpu_read() */ - if (!slab_is_available() || !this_cpu_read(text_poke_area)) + if (!this_cpu_read(*PTRRELOC(&text_poke_area))) return __patch_instruction(addr, instr); local_irq_save(flags); |