x86, ticketlock: Convert __ticket_spin_lock to use xadd()

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Convert the two variants of __ticket_spin_lock() to use xadd(), which
has the effect of making them identical, so remove the duplicate function.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Link: http://lkml.kernel.org/r/4E5BCC40.3030501@goop.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

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Jeremy Fitzhardinge 2010-07-13 14:07:45 -07:00 • committed by H. Peter Anvin

parent c576a3ea90

commit 2994488fe5

1 changed files with 5 additions and 30 deletions

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arch/x86/include/asm/spinlock.h

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