Andrew Morton wrote:
> Direct access to current->comm is racy since we added
> prctl(PR_SET_NAME).
A passer-by's question. Did we change below one
char *get_task_comm(char *buf, struct task_struct *tsk)
{
/* buf must be at least sizeof(tsk->comm) in size */
task_lock(tsk);
strncpy(buf, tsk->comm, sizeof(tsk->comm));
task_unlock(tsk);
return buf;
}
since some archs may do like
char *strncpy(char *dest, const char *src, size_t n)
{
size_t len = __strnend(src, n) - src;
__builtin_memset(dest + len, 0, n - len);
__builtin_memcpy(dest, src, len);
return dest;
}
( arch/s390/lib/string.c ) after adding prctl(PR_SET_NAME)?
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