futex: Remove pointless mmgrap() + mmdrop()

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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>

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Peter Zijlstra 2020-03-04 13:02:41 +01:00

parent 3867913c45

commit 222993395e

1 changed files with 1 additions and 13 deletions

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kernel/futex.c

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