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kernel: trace: blktrace: remove redundent memcpy() in compat_blk_trace_setup()

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do_blk_trace_setup() will fully initialize 'buts.name', so can remove
the related memcpy(). And also use BLKTRACE_BDEV_SIZE and ARRAY_SIZE
instead of hard code number '32'.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Chen Gang
2013-11-03 22:23:39 +08:00
committed by Jens Axboe
parent 6678d83f18
commit f8c5e94486
2 changed files with 2 additions and 3 deletions
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2
include/linux/blktrace_api.h
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@@ -89,7 +89,7 @@ static inline int blk_trace_init_sysfs(struct device *dev)
#ifdef CONFIG_COMPAT
struct compat_blk_user_trace_setup {
char name[32];
char name[BLKTRACE_BDEV_SIZE];
u16 act_mask;
u32 buf_size;
u32 buf_nr;