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author | Keir Fraser <keir@xen.org> | 2010-11-16 15:41:28 +0000 |
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committer | Keir Fraser <keir@xen.org> | 2010-11-16 15:41:28 +0000 |
commit | 89b31d1255573286bab1853f47bfa50ff9d89801 (patch) | |
tree | a1debc5ea0b01fa56da3738705c3048c5dd83d64 /xen/include/xen/spinlock.h | |
parent | 106f2288c2a71e4f6438d5e2571a78720e659d34 (diff) | |
download | xen-89b31d1255573286bab1853f47bfa50ff9d89801.tar.gz xen-89b31d1255573286bab1853f47bfa50ff9d89801.tar.bz2 xen-89b31d1255573286bab1853f47bfa50ff9d89801.zip |
Add locking-depth debugging, introduce in_atomic() boolean.
This will be useful for debugging use of sleep-in-hypervisor
primitives.
Signed-off-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include/xen/spinlock.h')
-rw-r--r-- | xen/include/xen/spinlock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/xen/include/xen/spinlock.h b/xen/include/xen/spinlock.h index a2d1ed99bf..6bb0cd6d1c 100644 --- a/xen/include/xen/spinlock.h +++ b/xen/include/xen/spinlock.h @@ -223,4 +223,6 @@ int _rw_is_write_locked(rwlock_t *lock); #define rw_is_locked(l) _rw_is_locked(l) #define rw_is_write_locked(l) _rw_is_write_locked(l) +unsigned int locking_depth(void); + #endif /* __SPINLOCK_H__ */ |