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Commit a41bad1a authored by Yan, Zheng's avatar Yan, Zheng Committed by Alex Elder
Browse files

ceph: re-calculate truncate_size for strip object



Otherwise osd may truncate the object to larger size.

Signed-off-by: default avatarYan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: default avatarSage Weil <sage@inktank.com>
parent 6e8575fa
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+8 −0
Original line number Diff line number Diff line
@@ -76,8 +76,16 @@ int ceph_calc_raw_layout(struct ceph_osd_client *osdc,
		     orig_len - *plen, off, *plen);

	if (op_has_extent(op->op)) {
		u32 osize = le32_to_cpu(layout->fl_object_size);
		op->extent.offset = objoff;
		op->extent.length = objlen;
		if (op->extent.truncate_size <= off - objoff) {
			op->extent.truncate_size = 0;
		} else {
			op->extent.truncate_size -= off - objoff;
			if (op->extent.truncate_size > osize)
				op->extent.truncate_size = osize;
		}
	}
	req->r_num_pages = calc_pages_for(off, *plen);
	req->r_page_alignment = off & ~PAGE_MASK;