diff options
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/lib/rwlock.S | 44 |
2 files changed, 0 insertions, 45 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 4d4f96a27638..7ef9a30e7dac 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -20,7 +20,6 @@ lib-y := delay.o misc.o cmdline.o lib-y += thunk_$(BITS).o lib-y += usercopy_$(BITS).o usercopy.o getuser.o putuser.o lib-y += memcpy_$(BITS).o -lib-$(CONFIG_SMP) += rwlock.o lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o diff --git a/arch/x86/lib/rwlock.S b/arch/x86/lib/rwlock.S deleted file mode 100644 index 1cad22139c88..000000000000 --- a/arch/x86/lib/rwlock.S +++ /dev/null @@ -1,44 +0,0 @@ -/* Slow paths of read/write spinlocks. */ - -#include <linux/linkage.h> -#include <asm/alternative-asm.h> -#include <asm/frame.h> -#include <asm/rwlock.h> - -#ifdef CONFIG_X86_32 -# define __lock_ptr eax -#else -# define __lock_ptr rdi -#endif - -ENTRY(__write_lock_failed) - CFI_STARTPROC - FRAME -0: LOCK_PREFIX - WRITE_LOCK_ADD($RW_LOCK_BIAS) (%__lock_ptr) -1: rep; nop - cmpl $WRITE_LOCK_CMP, (%__lock_ptr) - jne 1b - LOCK_PREFIX - WRITE_LOCK_SUB($RW_LOCK_BIAS) (%__lock_ptr) - jnz 0b - ENDFRAME - ret - CFI_ENDPROC -END(__write_lock_failed) - -ENTRY(__read_lock_failed) - CFI_STARTPROC - FRAME -0: LOCK_PREFIX - READ_LOCK_SIZE(inc) (%__lock_ptr) -1: rep; nop - READ_LOCK_SIZE(cmp) $1, (%__lock_ptr) - js 1b - LOCK_PREFIX - READ_LOCK_SIZE(dec) (%__lock_ptr) - js 0b - ENDFRAME - ret - CFI_ENDPROC -END(__read_lock_failed) |