tree b7ecc2a4706ab25b0d06af7bac5fdf5d0fc7acb5
parent 6be5ceb02e98eaf6cfc4f8b12a896d04023f340d
author Al Viro <viro@zeniv.linux.org.uk> 1334972981 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1334987896 -0400

aio: don't bother with unmapping when aio_free_ring() is coming from exit_aio()

... since exit_mmap() is coming and it will munmap() everything anyway.
In all other cases aio_free_ring() has ctx->mm == current->mm; moreover,
all other callers of vm_munmap() have mm == current->mm, so this will
allow us to get rid of mm argument of vm_munmap().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>