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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2019-02-05 13:28:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-19 13:28:43 +0300 |
| commit | fb4415a12632f0b9078a0aa80c16745d48fcfc74 (patch) | |
| tree | 0ba3d1d5217c80e9525e71f334b59c0d7a9583fb /tools/perf/scripts/python/stackcollapse.py | |
| parent | f54a740176fe2340a5a69de750bb496ee674866f (diff) | |
| download | linux-fb4415a12632f0b9078a0aa80c16745d48fcfc74.tar.xz | |
staging: android: ashmem: Don't call fallocate() with ashmem_mutex held.
syzbot is hitting lockdep warnings [1][2][3]. This patch tries to fix
the warning by eliminating ashmem_shrink_scan() => {shmem|vfs}_fallocate()
sequence.
[1] https://syzkaller.appspot.com/bug?id=87c399f6fa6955006080b24142e2ce7680295ad4
[2] https://syzkaller.appspot.com/bug?id=7ebea492de7521048355fc84210220e1038a7908
[3] https://syzkaller.appspot.com/bug?id=e02419c12131c24e2a957ea050c2ab6dcbbc3270
Reported-by: syzbot <syzbot+a76129f18c89f3e2ddd4@syzkaller.appspotmail.com>
Reported-by: syzbot <syzbot+148c2885d71194f18d28@syzkaller.appspotmail.com>
Reported-by: syzbot <syzbot+4b8b031b89e6b96c4b2e@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable@vger.kernel.org
Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions