Commit 99947153 authored by Niels Dossche's avatar Niels Dossche Committed by Andrew Morton
Browse files

selftest/vm: test that mremap fails on non-existent vma 

Add a regression test that validates that mremap fails for vma's that
don't exist.

Link: https://lkml.kernel.org/r/20220427224439.23828-3-dossche.niels@gmail.com


Signed-off-by: default avatarNiels Dossche <dossche.niels@gmail.com>
Cc: Mina Almasry <almasrymina@google.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent dd062302

tools/testing/selftests/vm/hugepage-mremap.c

+6 −0
Original line number Diff line number Diff line
@@ -178,6 +178,12 @@ int main(int argc, char *argv[]) 


	munmap(addr, length);



	addr = mremap(addr, length, length, 0);

	if (addr != MAP_FAILED) {

		printf("mremap: Expected failure, but call succeeded\n");

		exit(1);

	}



	close(fd);

	unlink(argv[argc-1]);