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authorYan, Zheng <zyan@redhat.com>2016-01-07 17:32:54 +0800
committerIlya Dryomov <idryomov@gmail.com>2016-03-25 18:51:43 +0100
commit2c63f49a724a10bb71cc0fd34f8e5acce78525d5 (patch)
tree89e28fde957db2d813d69c2f96a0934bdb455941 /fs
parent3f1af42ad0fad8a12242233dd0d9fc42f5e83415 (diff)
downloadlinux-2c63f49a724a10bb71cc0fd34f8e5acce78525d5.tar.bz2
libceph: add helper that duplicates last extent operation
This helper duplicates last extent operation in OSD request, then adjusts the new extent operation's offset and length. The helper is for scatterd page writeback, which adds nonconsecutive dirty pages to single OSD request. Signed-off-by: Yan, Zheng <zyan@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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