sparc64: Improvde documentation and readability of atomic backoff code.
Document what's going on in asm/backoff.h with a large and descriptive
comment. Refer to it above the cpu_relax() definition in
asm/processor_64.h
Rename the pause patching section to have "3insn" in it's name like
the other patching sections do.
Based upon feedback from Sam Ravnborg.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 847f9f7..0bacceb 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -132,10 +132,10 @@
*(.popc_6insn_patch)
__popc_6insn_patch_end = .;
}
- .pause_patch : {
- __pause_patch = .;
- *(.pause_patch)
- __pause_patch_end = .;
+ .pause_3insn_patch : {
+ __pause_3insn_patch = .;
+ *(.pause_3insn_patch)
+ __pause_3insn_patch_end = .;
}
PERCPU_SECTION(SMP_CACHE_BYTES)