Revision e8e2bca070b4606a0d7c4ea837bb92370e690a38 authored by Alexander Potapenko on 09 January 2020, 14:16:30 UTC, committed by Alexander Potapenko on 09 January 2020, 14:16:30 UTC
KMSAN doesn't allow treating adjacent memory pages as such, if they were allocated by different alloc_pages() calls. The block layer however does so: adjacent pages end up being used together. To prevent this, make page_is_mergeable() return false under KMSAN. Suggested-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Alexander Potapenko <glider@google.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Vegard Nossum <vegard.nossum@oracle.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Marco Elver <elver@google.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: linux-mm@kvack.org
1 parent 5834921
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 1.3 KB |
| lock_events.c | -rw-r--r-- | 4.3 KB |
| lock_events.h | -rw-r--r-- | 1.7 KB |
| lock_events_list.h | -rw-r--r-- | 3.2 KB |
| lockdep.c | -rw-r--r-- | 134.2 KB |
| lockdep_internals.h | -rw-r--r-- | 6.6 KB |
| lockdep_proc.c | -rw-r--r-- | 17.0 KB |
| lockdep_states.h | -rw-r--r-- | 207 bytes |
| locktorture.c | -rw-r--r-- | 27.7 KB |
| mcs_spinlock.h | -rw-r--r-- | 3.7 KB |
| mutex-debug.c | -rw-r--r-- | 2.7 KB |
| mutex-debug.h | -rw-r--r-- | 1.1 KB |
| mutex.c | -rw-r--r-- | 37.5 KB |
| mutex.h | -rw-r--r-- | 841 bytes |
| osq_lock.c | -rw-r--r-- | 5.6 KB |
| percpu-rwsem.c | -rw-r--r-- | 5.2 KB |
| qrwlock.c | -rw-r--r-- | 2.3 KB |
| qspinlock.c | -rw-r--r-- | 16.4 KB |
| qspinlock_paravirt.h | -rw-r--r-- | 16.0 KB |
| qspinlock_stat.h | -rw-r--r-- | 3.0 KB |
| rtmutex-debug.c | -rw-r--r-- | 4.6 KB |
| rtmutex-debug.h | -rw-r--r-- | 1.4 KB |
| rtmutex.c | -rw-r--r-- | 51.0 KB |
| rtmutex.h | -rw-r--r-- | 1.2 KB |
| rtmutex_common.h | -rw-r--r-- | 4.2 KB |
| rwsem.c | -rw-r--r-- | 47.0 KB |
| rwsem.h | -rw-r--r-- | 253 bytes |
| semaphore.c | -rw-r--r-- | 7.2 KB |
| spinlock.c | -rw-r--r-- | 9.6 KB |
| spinlock_debug.c | -rw-r--r-- | 5.7 KB |
| test-ww_mutex.c | -rw-r--r-- | 12.3 KB |
Computing file changes ...
