Commit 0497b345 authored by Jens Axboe's avatar Jens Axboe
Browse files

blktrace: use BLKTRACE_BDEV_SIZE as the name size for setup structure



Define as 32, which is is what BDEVNAME_SIZE is/was as well. This keeps
the user interface the same and gets rid of the difference between
kernel and user api here.
Signed-off-by: default avatarJens Axboe <jens.axboe@oracle.com>
parent ef9e3fac
......@@ -369,7 +369,8 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
if (!buts->buf_size || !buts->buf_nr)
return -EINVAL;
strcpy(buts->name, name);
strncpy(buts->name, name, BLKTRACE_BDEV_SIZE);
buts->name[BLKTRACE_BDEV_SIZE - 1] = '\0';
/*
* some device names have larger paths - convert the slashes
......
......@@ -122,15 +122,13 @@ enum {
Blktrace_stopped,
};
#define BLKTRACE_BDEV_SIZE 32
/*
* User setup structure passed with BLKTRACESTART
*/
struct blk_user_trace_setup {
#ifdef __KERNEL__
char name[BDEVNAME_SIZE]; /* output */
#else
char name[32]; /* output */
#endif
char name[BLKTRACE_BDEV_SIZE]; /* output */
__u16 act_mask; /* input */
__u32 buf_size; /* input */
__u32 buf_nr; /* input */
......
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