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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-08-19 16:19:36 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-20 06:40:07 -0400 |
| commit | 63d3a75d6f1fcf2f33e6abbe84e1f428c3586152 (patch) | |
| tree | 3b7453c784b4fad0afe002942d48bfc876010999 /include/asm-generic/mutex-null.h | |
| parent | 6e833587e11ed0dbf12e647127f2650e2f80b26d (diff) | |
x86/paravirt: add spin_lock_flags lock op
It is useful for a pv_lock_ops backend to know whether interrupts are
enabled or not in the context a spin_lock is being called. This
allows it to enable interrupts while spinning, which could be
particularly helpful when spinning becomes blocking.
The default implementation just calls the normal spin_lock op,
ignoring the flags.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-generic/mutex-null.h')
0 files changed, 0 insertions, 0 deletions