switch do_brk() to get_unmapped_area() (2c6a1016) · Commits · e / devices / android_kernel_samsung_universal8895

mm/mmap.c

+2 −8

Original line number	Diff line number	Diff line
		@@ -1985,20 +1985,14 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
		if (!len)
		return addr;

		if ((addr + len) > TASK_SIZE \|\| (addr + len) < addr)
		return -EINVAL;

		if (is_hugepage_only_range(mm, addr, len))
		return -EINVAL;

		error = security_file_mmap(NULL, 0, 0, 0, addr, 1);
		if (error)
		return error;

		flags = VM_DATA_DEFAULT_FLAGS \| VM_ACCOUNT \| mm->def_flags;

		error = arch_mmap_check(addr, len, flags);
		if (error)
		error = get_unmapped_area(NULL, addr, len, 0, MAP_FIXED);
		if (error & ~PAGE_MASK)
		return error;

		/*