ceph: check migrate seq before changing auth cap
We may receive old request reply from the exporter MDS after receiving the importer MDS' cap import message. Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com> Reviewed-by: Sage Weil <sage@inktank.com>
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@ -612,9 +612,11 @@ retry:
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__cap_delay_requeue(mdsc, ci);
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}
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if (flags & CEPH_CAP_FLAG_AUTH)
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if (flags & CEPH_CAP_FLAG_AUTH) {
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if (ci->i_auth_cap == NULL ||
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ceph_seq_cmp(ci->i_auth_cap->mseq, mseq) < 0)
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ci->i_auth_cap = cap;
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else if (ci->i_auth_cap == cap) {
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} else if (ci->i_auth_cap == cap) {
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ci->i_auth_cap = NULL;
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spin_lock(&mdsc->cap_dirty_lock);
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if (!list_empty(&ci->i_dirty_item)) {
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