Yan, Zheng dc8470f3c8 ceph: update readpages osd request according to size of pages ...

commit d641df819d upstream.

add_to_page_cache_lru() can fails, so the actual pages to read
can be smaller than the initial size of osd request. We need to
update osd request size in that case.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2017-03-12 06:41:53 +01:00

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