Initialize profile to NULL when lock profiling is not enabled.
diff -r 068d3d55ce6e xen/include/xen/spinlock.h
--- a/xen/include/xen/spinlock.h Tue Nov 01 19:03:38 2011 +0000
+++ b/xen/include/xen/spinlock.h Sat Nov 05 11:57:38 2011 +0800
@@ -108,7 +108,7 @@ struct lock_profile_qhead { };
struct lock_profile_qhead { };
#define SPIN_LOCK_UNLOCKED \
- { _RAW_SPIN_LOCK_UNLOCKED, 0xfffu, 0, _LOCK_DEBUG, { } }
+ { _RAW_SPIN_LOCK_UNLOCKED, 0xfffu, 0, _LOCK_DEBUG, NULL }
#define DEFINE_SPINLOCK(l) spinlock_t l = SPIN_LOCK_UNLOCKED
#define spin_lock_init_prof(s, l) spin_lock_init(&((s)->l))
Thanks,
-Xudong
> -----Original Message-----
> From: Juergen Gross [mailto:juergen.gross@xxxxxxxxxxxxxx]
> Sent: Friday, November 04, 2011 8:53 PM
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: Hao, Xudong
> Subject: [PATCH] Make lock profiling usable again
>
> Using lock profiling (option lock_profile in xen/Rules.mk) resulted in build
> errors.
> Changes:
> - Include public/sysctl.h in spinlock.h when using lock profiling.
> - Allocate profile data in an own structure to avoid struct domain becoming
> larger then one page
>
> Signed-off-by: juergen.gross@xxxxxxxxxxxxxx
>
>
> 2 files changed, 44 insertions(+), 24 deletions(-)
> xen/common/spinlock.c | 34 +++++++++++++++++++++-------------
> xen/include/xen/spinlock.h | 34 +++++++++++++++++++++++-----------
>
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