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[Xen-devel] [PATCH] backport: allocate cap save buffers for PCIe/PCI-X.
| To: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] backport: allocate cap save buffers for PCIe/PCI-X. |
| From: | "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> |
| Date: | Wed, 18 Mar 2009 17:27:11 +0800 |
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| Delivery-date: | Wed, 18 Mar 2009 02:29:06 -0700 |
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| Thread-topic: | [PATCH] backport: allocate cap save buffers for PCIe/PCI-X. |
Changeset 819:e8a9f8910a3f doesn't backport all the necessary codes.
This patch adds the missing part. It is also backported from upstream Linux
kernel and the git commit is:
commit 63f4898ace2788a89ed685672aab092e1c3e50e6
Author: Rafael J. Wysocki <rjw@xxxxxxx>
Date: Sun Dec 7 22:02:58 2008 +0100
PCI: handle PCI state saving with interrupts disabled
Since interrupts will soon be disabled at PCI resume time, we need to
pre-allocate memory to save/restore PCI config space (or use GFP_ATOMIC,
but this is safer).
Reported-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: "Rafael J. Wysocki" <rjw@xxxxxxx>
Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Signed-off-by: Dexuan Cui <dexuan.cui@xxxxxxxxx>
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