OpenEuler合入的COMMIT存在FIX: a3e7530f44c03b4fc43ba6a0c26e07c711a0b20a

OE_COMMIT: a3e7530f44c03b4fc43ba6a0c26e07c711a0b20a
标题: xen/balloon: Support xend-based toolstack

对应社区COMMIT: 3aa6c19d2f38be9c6e9a8ad5fa8e3c9d29ee3c35
社区COMMIT标题: xen/balloon: Support xend-based toolstack

社区修复COMMIT: eda4eabf86fd6806eaabc23fb90dd056fdac037b
修复COMMIT标题: xen/balloon: Support xend-based toolstack take two
修复内容:
| commit eda4eabf86fd6806eaabc23fb90dd056fdac037b
| Author: Juergen Gross jgross@suse.com
| Date: Fri Jan 17 14:49:31 2020 +0100
|
| xen/balloon: Support xend-based toolstack take two
|
| Commit 3aa6c19d2f38be ("xen/balloon: Support xend-based toolstack")
| tried to fix a regression with running on rather ancient Xen versions.
| Unfortunately the fix was based on the assumption that xend would
| just use another Xenstore node, but in reality only some downstream
| versions of xend are doing that. The upstream xend does not write
| that Xenstore node at all, so the problem must be fixed in another
| way.
|
| The easiest way to achieve that is to fall back to the behavior
| before commit 96edd61dcf4436 ("xen/balloon: don't online new memory
| initially") in case the static memory maximum can't be read.
|
| This is achieved by setting static_max to the current number of
| memory pages known by the system resulting in target_diff becoming
| zero.
|
| Fixes: 3aa6c19d2f38be ("xen/balloon: Support xend-based toolstack")
| Signed-off-by: Juergen Gross jgross@suse.com
| Reviewed-by: Boris Ostrovsky boris.ostrovsky@oracle.com
| Cc: stable@vger.kernel.org # 4.13
| Signed-off-by: Boris Ostrovsky boris.ostrovsky@oracle.com
涉及文件:
| drivers/xen/xen-balloon.c

该修正是否存在后续修正: 否
确认版本: v6.1-rc5

关联ISSUE: #I612JH

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