From 62479586532715b6da4777374a6f53b32453385e Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 21 Mar 2013 16:28:47 +0000 Subject: arm64: klib: Optimised atomic bitops This patch implements the AArch64-specific atomic bitops functions using exclusive memory accesses to avoid locking. Signed-off-by: Catalin Marinas --- arch/arm64/kernel/arm64ksyms.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) (limited to 'arch/arm64/kernel') diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index a5d0d464310..7df1aad29b6 100644 --- a/arch/arm64/kernel/arm64ksyms.c +++ b/arch/arm64/kernel/arm64ksyms.c @@ -39,11 +39,6 @@ EXPORT_SYMBOL(__copy_from_user); EXPORT_SYMBOL(__copy_to_user); EXPORT_SYMBOL(__clear_user); - /* bitops */ -#ifdef CONFIG_SMP -EXPORT_SYMBOL(__atomic_hash); -#endif - /* physical memory */ EXPORT_SYMBOL(memstart_addr); @@ -54,3 +49,11 @@ EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(memchr); + + /* atomic bitops */ +EXPORT_SYMBOL(set_bit); +EXPORT_SYMBOL(test_and_set_bit); +EXPORT_SYMBOL(clear_bit); +EXPORT_SYMBOL(test_and_clear_bit); +EXPORT_SYMBOL(change_bit); +EXPORT_SYMBOL(test_and_change_bit); -- cgit v1.2.3-70-g09d2