fs/binfmt_elf.c: make BAD_ADDR() unlikely

If some mapping goes past TASK_SIZE it will be rejected by kernel which
means no such userspace binaries exist.

Mark every such check as unlikely.

Link: http://lkml.kernel.org/r/20191215124355.GA21124@avx2Signed-off-by: NAlexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

fs/binfmt_elf.c

@@ -97,7 +97,7 @@ static struct linux_binfmt elf_format = {
 	.min_coredump	= ELF_EXEC_PAGESIZE,
 };
 
-#define BAD_ADDR(x) ((unsigned long)(x) >= TASK_SIZE)
+#define BAD_ADDR(x) (unlikely((unsigned long)(x) >= TASK_SIZE))
 
 static int set_brk(unsigned long start, unsigned long end, int prot)
 {