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| author | Peter Zijlstra <peterz@infradead.org> | 2015-07-24 14:45:44 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-08-03 11:34:12 +0200 |
| commit | 76b235c6bcb16062d663e2ee96db0b69f2e6bc14 (patch) | |
| tree | 60355848b836cd6b52228bedfbabc1631c4c905e /arch/powerpc/kernel | |
| parent | f320ead76a87a9c533f681ecce3bf3241d07c47d (diff) | |
| download | blackbird-op-linux-76b235c6bcb16062d663e2ee96db0b69f2e6bc14.tar.gz blackbird-op-linux-76b235c6bcb16062d663e2ee96db0b69f2e6bc14.zip | |
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
Since we've already stepped away from ENABLE is a JMP and DISABLE is a
NOP with the branch_default bits, and are going to make it even worse,
rename it to make it all clearer.
This way we don't mix multiple levels of logic attributes, but have a
plain 'physical' name for what the current instruction patching status
of a jump label is.
This is a first step in removing the naming confusion that has led to
a stream of avoidable bugs such as:
a833581e372a ("x86, perf: Fix static_key bug in load_mm_cr4()")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
[ Beefed up the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/jump_label.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/jump_label.c b/arch/powerpc/kernel/jump_label.c index a1ed8a8c7cb4..6472472093d0 100644 --- a/arch/powerpc/kernel/jump_label.c +++ b/arch/powerpc/kernel/jump_label.c @@ -17,7 +17,7 @@ void arch_jump_label_transform(struct jump_entry *entry, { u32 *addr = (u32 *)(unsigned long)entry->code; - if (type == JUMP_LABEL_ENABLE) + if (type == JUMP_LABEL_JMP) patch_branch(addr, entry->target, 0); else patch_instruction(addr, PPC_INST_NOP); |
