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libceph: fix truncate size calculation

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check the "not truncated yet" case

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
This commit is contained in:
Yan, Zheng 2013-06-02 18:40:23 +08:00 committed by Sage Weil
parent eb845ff13a
commit ccca4e37b1
1 changed files with 8 additions and 6 deletions
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14
net/ceph/osd_client.c
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@ -733,12 +733,14 @@ struct ceph_osd_request *ceph_osdc_new_request(struct ceph_osd_client *osdc,
object_size = le32_to_cpu(layout->fl_object_size);
object_base = off - objoff;
if (truncate_size <= object_base) {
truncate_size = 0;
} else {
truncate_size -= object_base;
if (truncate_size > object_size)
truncate_size = object_size;
if (!(truncate_seq == 1 && truncate_size == -1ULL)) {
if (truncate_size <= object_base) {
truncate_size = 0;
} else {
truncate_size -= object_base;
if (truncate_size > object_size)
truncate_size = object_size;
}
}
osd_req_op_extent_init(req, 0, opcode, objoff, objlen,