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futex: Remove pointless mmgrap() + mmdrop()
authorPeter Zijlstra <peterz@infradead.org>
Wed, 4 Mar 2020 12:02:41 +0000 (13:02 +0100)
committerPeter Zijlstra <peterz@infradead.org>
Fri, 6 Mar 2020 10:06:18 +0000 (11:06 +0100)
commit222993395ed38f3751287f4bd82ef46b3eb3a66d
tree6b3dd02dcc21765cbeacb30b316b67f4d8101ed6tree
parent3867913c45b478dec7f9a60b950ad88a14e2a748commit | diff
futex: Remove pointless mmgrap() + mmdrop()

We always set 'key->private.mm' to 'current->mm', getting an extra
reference on 'current->mm' is quite pointless, because as long as the
task is blocked it isn't going to go away.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
kernel/futex.c diff | blob | history
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