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selftests: proc: Make va_max 1MB

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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>
This commit is contained in:
Masami Hiramatsu 2019-10-23 13:57:40 +09:00 committed by Shuah Khan
parent 02bf1f8b3c
commit 2f3571ea71
1 changed files with 5 additions and 1 deletions
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6
tools/testing/selftests/proc/proc-self-map-files-002.c
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@ -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;