From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 26 May 2010 21:43:08 +0000 (-0700)
Subject: coredump: shift down_write(mmap_sem) into coredump_wait()
X-Git-Tag: v2.6.35-rc1~172
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=269b005a28e124a341df4adef2c3661cf7371fcc;p=pandora-kernel.git

coredump: shift down_write(mmap_sem) into coredump_wait()

- move the cprm.mm_flags checks up, before we take mmap_sem

- move down_write(mmap_sem) and ->core_state check from do_coredump()
  to coredump_wait()

This simplifies the code and makes the locking symmetrical.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

Reading git-diff-tree failed