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tracing/blktrace: fix up checkpatch reported problems in ftrace plugin patch

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Also make sure sparse (make C=2 block/blktrace.o) is happy too.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Arnaldo Carvalho de Melo 2009-01-26 15:00:56 -02:00 • committed by Ingo Molnar
parent c71a896154
commit 157f9c00e8
3 changed files with 31 additions and 19 deletions
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5
include/linux/blktrace_api.h
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@ -142,6 +142,9 @@ struct blk_user_trace_setup {
#ifdef __KERNEL__
#if defined(CONFIG_BLK_DEV_IO_TRACE)
#include <linux/sysfs.h>
struct blk_trace {
int trace_state;
struct rchan *rchan;
@ -192,6 +195,8 @@ extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
extern int blk_trace_startstop(struct request_queue *q, int start);
extern int blk_trace_remove(struct request_queue *q);
extern struct attribute_group blk_trace_attr_group;
#else /* !CONFIG_BLK_DEV_IO_TRACE */
#define blk_trace_ioctl(bdev, cmd, arg) (-ENOTTY)
#define blk_trace_shutdown(q) do { } while (0)