vmalloc: unmap vmalloc area after hiding it
vmap area should be purged after vm_struct is removed from the list because vread/vwrite etc...believes the range is valid while it's on vm_struct list. Signed-off-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: NWANG Cong <xiyou.wangcong@gmail.com> Cc: Mike Smith <scgtrp@gmail.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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