Max Filippov 1c11f153eb xtensa: fix futex_atomic_cmpxchg_inatomic ... commit ca47480921587ae30417dd234a9f79af188e3666 upstream. Return 0 if the operation was successful, not the userspace memory value. Check that userspace value equals passed oldval, not itself. Don't update *uval if the value wasn't read from userspace memory. This fixes process hang due to infinite loop in futex_lock_pi. It also fixes a bunch of glibc tests nptl/tst-mutexpi*. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-16 20:09:47 +01:00
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asm	xtensa: fix futex_atomic_cmpxchg_inatomic	2018-02-16 20:09:47 +01:00
uapi/asm	mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage	2015-11-05 19:34:48 -08:00