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ceph: update readpages osd request according to size of pages

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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>
This commit is contained in:
Yan, Zheng
2017-01-19 11:21:29 +08:00
committed by Ilya Dryomov
parent 24c149ad69
commit d641df819d
2 changed files with 3 additions and 1 deletions
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3
net/ceph/osd_client.c
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@@ -672,7 +672,8 @@ void osd_req_op_extent_update(struct ceph_osd_request *osd_req,
BUG_ON(length > previous);
op->extent.length = length;
op->indata_len -= previous - length;
if (op->op == CEPH_OSD_OP_WRITE || op->op == CEPH_OSD_OP_WRITEFULL)
op->indata_len -= previous - length;
}
EXPORT_SYMBOL(osd_req_op_extent_update);