bugfix in copy_mount_options()?

From: Tigran Aivazian (tigran@veritas.com)
Date: Thu May 04 2000 - 10:37:56 EST

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Hi,

It would seem that the callers of find_vma() are supposed to
down(&mm->mmap_sem) but copy_mount_options() does not do so and the
obvious attempt to make it do so results in a deadlock. Any ideas on the
reason how can copy_mount_options() safely call find_vma() without being
protected by mmap_sem semaphore?

Regards,
Tigran

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