Commit 5e11f98d authored by Robert Richter's avatar Robert Richter Committed by Ingo Molnar
Browse files

OProfile: moving increment_tail() in buffer_sync.c 



Signed-off-by: default avatarRobert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 73185e0a

drivers/oprofile/buffer_sync.c

+11 −13
Original line number Diff line number Diff line
@@ -268,6 +268,17 @@ lookup_dcookie(struct mm_struct *mm, unsigned long addr, off_t *offset) 
	return cookie;

}



static void increment_tail(struct oprofile_cpu_buffer *b)

{

	unsigned long new_tail = b->tail_pos + 1;



	rmb();



	if (new_tail < b->buffer_size)

		b->tail_pos = new_tail;

	else

		b->tail_pos = 0;

}



static unsigned long last_cookie = INVALID_COOKIE;
@@ -417,19 +428,6 @@ static unsigned long get_slots(struct oprofile_cpu_buffer *b) 
}





static void increment_tail(struct oprofile_cpu_buffer *b)

{

	unsigned long new_tail = b->tail_pos + 1;



	rmb();



	if (new_tail < b->buffer_size)

		b->tail_pos = new_tail;

	else

		b->tail_pos = 0;

}





/* Move tasks along towards death. Any tasks on dead_tasks

 * will definitely have no remaining references in any

 * CPU buffers at this point, because we use two lists,