test_sysctl: test against PAGE_SIZE for int
Add the following tests to ensure we do not regress: o Test using a buffer full of space (PAGE_SIZE-1) followed by a single digit works o Test using a buffer full of spaces (PAGE_SIZE or over) will fail As tests increase instead of unloading the module and reloading it we can just do a shell reset_vals() with a reset to values we know are set at init on the driver. Link: http://lkml.kernel.org/r/20170630224431.17374-4-mcgrof@kernel.orgSigned-off-by: Luis R. Rodriguez <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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