kernel: trace: blktrace: remove redundent memcpy() in compat_blk_trace_setup()
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>
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index a12f6ed..afc1343 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -89,7 +89,7 @@
#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;