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Subject[PATCH 0/2] Bug fix in aio ring page migration.
This patch-set fixes the following two problems:

1. Need to use ctx->completion_lock to protect ring pages
from being mis-written while migration.

2. Need memory barrier to ensure memory copy is done before
ctx->ring_pages[] is updated.

NOTE: AIO ring page migration was implemented since Linux 3.12.
So we need to merge these two patches into 3.12 stable tree.

Tang Chen (2):
aio, memory-hotplug: Fix confliction when migrating and accessing ring
aio, mem-hotplug: Add memory barrier to aio ring page migration.

fs/aio.c | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)


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