Yan, Zheng 5b64640cf6 ceph: scattered page writeback
This patch makes ceph_writepages_start() try using single OSD request
to write all dirty pages within a strip unit. When a nonconsecutive
dirty page is found, ceph_writepages_start() tries starting a new write
operation to existing OSD request. If it succeeds, it uses the new
operation to writeback the dirty page.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
2016-03-25 18:51:51 +01:00
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