Hi, all
While reading Linux pnfs code, I have a question in layoutreturn code path.
nfs4_layoutreturn_release() only invalidate layout stateid when
res.lrs_present is FALSE. If it is TRUE, client is supposed to set it
to res.stateid, is it? But I do not see somewhere the layout stateid
is updated. Am I missing something?
5683 static void nfs4_layoutreturn_release(void *calldata)
5684 {
5685 struct nfs4_layoutreturn *lrp = calldata;
5686 struct pnfs_layout_hdr *lo = NFS_I(lrp->args.inode)->layout;
5687
5688 dprintk("--> %s return_type %d lo %p\n", __func__,
5689 lrp->args.return_type, lo);
5690
5691 if (lrp->args.return_type == RETURN_FILE) {
5692 if (!lrp->res.lrs_present)
5693 pnfs_invalidate_layout_stateid(lo);
5694 pnfs_layoutreturn_release(lo, &lrp->args.range);
5695 }
5696 kfree(calldata);
5697 dprintk("<-- %s\n", __func__);
5698 }
--
Thanks,
Shelley
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