Commit 2f3571ea authored Oct 23, 2019 by Masami Hiramatsu Committed by Shuah Khan Nov 07, 2019

selftests: proc: Make va_max 1MB



Currently proc-self-map-files-002.c sets va_max (max test address
of user virtual address) to 4GB, but it is too big for 32bit
arch and 1UL << 32 is overflow on 32bit long.
Also since this value should be enough bigger than vm.mmap_min_addr
(64KB or 32KB by default), 1MB should be enough.

Make va_max 1MB unconditionally.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

parent 02bf1f8b

tools/testing/selftests/proc/proc-self-map-files-002.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -47,7 +47,11 @@ static void fail(const char *fmt, unsigned long a, unsigned long b)
		int main(void)
		{
		const int PAGE_SIZE = sysconf(_SC_PAGESIZE);
		const unsigned long va_max = 1UL << 32;
		/*
		* va_max must be enough bigger than vm.mmap_min_addr, which is
		* 64KB/32KB by default. (depends on CONFIG_LSM_MMAP_MIN_ADDR)
		*/
		const unsigned long va_max = 1UL << 20;
		unsigned long va;
		void *p;
		int fd;

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