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| author | Catalin Marinas <catalin.marinas@arm.com> | 2013-03-21 20:28:47 +0400 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-03-21 21:39:31 +0400 |
| commit | 62479586532715b6da4777374a6f53b32453385e (patch) | |
| tree | 232004eb56bf36b966ea11ec8295a1b2893ac9e9 /arch/arm64/kernel/arm64ksyms.c | |
| parent | 2b8cac814cd5a0a305d62dcd1d589faccb705a4d (diff) | |
| download | linux-62479586532715b6da4777374a6f53b32453385e.tar.xz | |
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 <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/arm64ksyms.c')
| -rw-r--r-- | arch/arm64/kernel/arm64ksyms.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index a5d0d4643109..7df1aad29b67 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); |