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authorLinus Torvalds <torvalds@linux-foundation.org>2010-01-16 12:27:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-01-16 12:27:25 -0800
commit6ccc347b699681a0b21c2f7b1a1f85500a58c6b8 (patch)
treeabe33c75ae53d445abde0e5986b96ef696501d38 /kernel/trace/ring_buffer.c
parenteb29a5cc0b601c458bae9df2f6c3696d75c2d383 (diff)
parentd1303dd1d6b220cab375f24fa91a5640e54e169e (diff)
downloadop-kernel-dev-6ccc347b699681a0b21c2f7b1a1f85500a58c6b8.zip
op-kernel-dev-6ccc347b699681a0b21c2f7b1a1f85500a58c6b8.tar.gz
Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing/filters: Add comment for match callbacks tracing/filters: Fix MATCH_FULL filter matching for PTR_STRING tracing/filters: Fix MATCH_MIDDLE_ONLY filter matching lib: Introduce strnstr() tracing/filters: Fix MATCH_END_ONLY filter matching tracing/filters: Fix MATCH_FRONT_ONLY filter matching ftrace: Fix MATCH_END_ONLY function filter tracing/x86: Derive arch from bits argument in recordmcount.pl ring-buffer: Add rb_list_head() wrapper around new reader page next field ring-buffer: Wrap a list.next reference with rb_list_head()
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 2326b04..edefe3b 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2869,7 +2869,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
* Splice the empty reader page into the list around the head.
*/
reader = rb_set_head_page(cpu_buffer);
- cpu_buffer->reader_page->list.next = reader->list.next;
+ cpu_buffer->reader_page->list.next = rb_list_head(reader->list.next);
cpu_buffer->reader_page->list.prev = reader->list.prev;
/*
@@ -2906,7 +2906,7 @@ rb_get_reader_page(struct ring_buffer_per_cpu *cpu_buffer)
*
* Now make the new head point back to the reader page.
*/
- reader->list.next->prev = &cpu_buffer->reader_page->list;
+ rb_list_head(reader->list.next)->prev = &cpu_buffer->reader_page->list;
rb_inc_page(cpu_buffer, &cpu_buffer->head_page);
/* Finally update the reader page to the new head */
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