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(parent: e674637) | patch
mm_for_maps: shift down_read(mmap_sem) to the caller
authorOleg Nesterov <oleg@redhat.com>
Fri, 10 Jul 2009 01:27:38 +0000 (03:27 +0200)
committerJames Morris <jmorris@namei.org>
Mon, 10 Aug 2009 02:21:06 +0000 (12:21 +1000)
commit1ab3b04cfc76b462da468e30a2292749b9b9df19
tree9be8e7e08142e1685bc7346b359de0555d8de3f4tree | snapshot
parente67463716f2ef882d37eb39b26871296c4ef3670commit | diff
mm_for_maps: shift down_read(mmap_sem) to the caller

mm_for_maps() takes ->mmap_sem after security checks, this looks
strange and obfuscates the locking rules. Move this lock to its
single caller, m_start().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
fs/proc/base.c diff | blob | history
fs/proc/task_mmu.c diff | blob | history
fs/proc/task_nommu.c diff | blob | history
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