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(parent: 688d22e) | patch
xen: Use wmb instead of rmb in xen_evtchn_do_upcall().
authorIsaku Yamahata <yamahata@valinux.co.jp>
Mon, 16 Jun 2008 21:58:13 +0000 (14:58 -0700)
committerIngo Molnar <mingo@elte.hu>
Fri, 20 Jun 2008 12:55:10 +0000 (14:55 +0200)
commit6673cf63e5d973db5145d1f48b354efcb9fe2a13
treeaaaf1b61ff1313d141415127b8d28b873b50a80etree | snapshot
parent688d22e23ab1caacb2c36c615854294b58f2ea47commit | diff
xen: Use wmb instead of rmb in xen_evtchn_do_upcall().

This patch is ported one from 534:77db69c38249 of linux-2.6.18-xen.hg.
Use wmb instead of rmb to enforce ordering between
evtchn_upcall_pending and evtchn_pending_sel stores
in xen_evtchn_do_upcall().

Cc: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: the arch/x86 maintainers <x86@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
drivers/xen/events.c diff | blob | history
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