| commit | 9d55b9923a1b7ea8193b8875c57ec940dc2ff027 | |
| author | Thomas Gleixner <tglx@linutronix.de> | |
| Fri, 1 Feb 2008 16:45:14 +0000 (1 17:45 +0100) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Fri, 1 Feb 2008 16:45:14 +0000 (1 17:45 +0100) | ||
| tree | c80e51cc63c1e2316d4419b8644ff8359b8586f6 | treesnapshot (tar.gz zip) |
| parent | 5df7fa1c62146a0933767d040d400013310dbcc7 | commitdiff |
x86: replace LOCK_PREFIX in futex.h
The exception fixup for the futex macros __futex_atomic_op1/2 and
futex_atomic_cmpxchg_inatomic() is missing an entry when the lock
prefix is replaced by a NOP via SMP alternatives.
Chuck Ebert tracked this down from the information provided in:
https://bugzilla.redhat.com/show_bug.cgi?id=429412
A possible solution would be to add another fixup after the
LOCK_PREFIX, so both the LOCK and NOP case have their own entry in the
exception table, but it's not really worth the trouble.
Simply replace LOCK_PREFIX with lock and keep those untouched by SMP
alternatives.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
The exception fixup for the futex macros __futex_atomic_op1/2 and
futex_atomic_cmpxchg_inatomic() is missing an entry when the lock
prefix is replaced by a NOP via SMP alternatives.
Chuck Ebert tracked this down from the information provided in:
https://bugzilla.redhat.com/show_bug.cgi?id=429412
A possible solution would be to add another fixup after the
LOCK_PREFIX, so both the LOCK and NOP case have their own entry in the
exception table, but it's not really worth the trouble.
Simply replace LOCK_PREFIX with lock and keep those untouched by SMP
alternatives.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| include/asm-x86/futex.h | diffblobblamehistory |