diff options
| author |   Dave Hansen <dave.hansen@linux.intel.com> | 2018-05-09 10:13:50 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-05-14 11:14:45 +0200 |
| commit | f50b4878329ab61d8e05796f655adeb6f5fb57c6 (patch) | |
| tree | 60d88c468ac853a3982ab8221a19a363f69780d6 /arch/x86/mm/pkeys.c | |
| parent | x86/pkeys/selftests: Add PROT_EXEC test (diff) | |
| download | wireguard-linux-f50b4878329ab61d8e05796f655adeb6f5fb57c6.tar.xz wireguard-linux-f50b4878329ab61d8e05796f655adeb6f5fb57c6.zip | |
x86/pkeys/selftests: Fix pkey exhaustion test off-by-one
In our "exhaust all pkeys" test, we make sure that there
is the expected number available. Turns out that the
test did not cover the execute-only key, but discussed
it anyway. It did *not* discuss the test-allocated
key.
Now that we have a test for the mprotect(PROT_EXEC) case,
this off-by-one issue showed itself. Correct the off-by-
one and add the explanation for the case we missed.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Ellermen <mpe@ellerman.id.au>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/20180509171350.E1656B95@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions