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(parent: 3e6de5a) | patch
x86: add memory clobber in switch_to()
authorVegard Nossum <vegard.nossum@gmail.com>
Sun, 14 Sep 2008 17:03:53 +0000 (19:03 +0200)
committerIngo Molnar <mingo@elte.hu>
Mon, 13 Oct 2008 08:21:12 +0000 (10:21 +0200)
commit33f8c40a30ae99e971d068c9ec6088e713c46f5f
treefa824ccaf601c7ac388dbd5f5caa03c96c8bba26tree | snapshot
parent3e6de5a393661c5cdabe44115e93bcbde6a742fccommit | diff
x86: add memory clobber in switch_to()

Segment registers are reloaded, so we should add a memory clobber. The
generated assembly code is identical in my tests, but this doesn't mean
it is necessarily true for all configurations/compilers.

x86_64 already has the memory clobber.

Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
include/asm-x86/system.h diff | blob | history
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