Export kmem tracepoints for use by kernel modules

Message ID 20140422142244.GA21121@dreric01-Precision-T1600
State New
Headers show

Commit Message

Drew Richardson April 22, 2014, 2:22 p.m.
After commit de7b2973903c6cc50b31ee5682a69b2219b9919d ("tracepoint:
Use struct pointer instead of name hash for reg/unreg tracepoints"),
any tracepoints used in a kernel module must be exported.

Signed-off-by: Drew Richardson <drew.richardson@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
---
 mm/util.c | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Christoph Hellwig April 22, 2014, 3:19 p.m. | #1
On Tue, Apr 22, 2014 at 07:22:45AM -0700, Drew Richardson wrote:
> After commit de7b2973903c6cc50b31ee5682a69b2219b9919d ("tracepoint:
> Use struct pointer instead of name hash for reg/unreg tracepoints"),
> any tracepoints used in a kernel module must be exported.

But none of them are used by any in-tree module, so this isn't relevant.

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diff --git a/mm/util.c b/mm/util.c
index f380af7ea779..379e8db560b3 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -502,3 +502,9 @@  EXPORT_TRACEPOINT_SYMBOL(kmalloc_node);
 EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc_node);
 EXPORT_TRACEPOINT_SYMBOL(kfree);
 EXPORT_TRACEPOINT_SYMBOL(kmem_cache_free);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_free);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_free_batched);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_alloc);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_alloc_zone_locked);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_pcpu_drain);
+EXPORT_TRACEPOINT_SYMBOL_GPL(mm_page_alloc_extfrag);