Michael Ellerman 78e05b1421 powerpc: Add smp_mb()s to arch_spin_unlock_wait() ... Similar to the previous commit which described why we need to add a barrier to arch_spin_is_locked(), we have a similar problem with spin_unlock_wait(). We need a barrier on entry to ensure any spinlock we have previously taken is visibly locked prior to the load of lock->slock. It's also not clear if spin_unlock_wait() is intended to have ACQUIRE semantics. For now be conservative and add a barrier on exit to give it ACQUIRE semantics. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2014-08-13 15:13:27 +10:00
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alloc.c
checksum_32.S
checksum_64.S
checksum_wrappers_64.c
code-patching.c
copy_32.S
copypage_64.S	powerpc: Exported functions __clear_user and copy_page use r2 so need _GLOBAL_TOC()	2014-06-05 13:20:41 +10:00
copypage_power7.S
copyuser_64.S	powerpc: Remove power3 from comments	2014-07-28 14:10:26 +10:00
copyuser_power7.S
crtsavres.S
devres.c
div64.S
feature-fixups-test.S
feature-fixups.c
hweight_64.S
ldstfp.S
locks.c	powerpc: Add smp_mb()s to arch_spin_unlock_wait()	2014-08-13 15:13:27 +10:00
Makefile
mem_64.S	powerpc: use _GLOBAL_TOC for memmove	2014-07-22 15:56:04 +10:00
memcpy_64.S	Merge remote-tracking branch 'anton/abiv2' into next	2014-05-05 20:57:12 +10:00
memcpy_power7.S
rheap.c
sstep.c	powerpc: Fix bugs in emulate_step()	2014-07-22 15:55:51 +10:00
string_64.S	powerpc: Exported functions __clear_user and copy_page use r2 so need _GLOBAL_TOC()	2014-06-05 13:20:41 +10:00
string.S
usercopy_64.c
vmx-helper.c
xor_vmx.c