Hi Dros,
The client takes this WARN_ON_ONCE path pretty often in
pnfs_generic_pg_test() with SCSI layout type and generic/010:
1925 if (pgio->pg_lseg) {
1926 seg_end = end_offset(pgio->pg_lseg->pls_range.offset,
1927 pgio->pg_lseg->pls_range.length);
1928 req_start = req_offset(req);
1929 WARN_ON_ONCE(req_start >= seg_end);
1930 /* start of request is past the last byte of this segment */
1931 if (req_start >= seg_end) {
1932 /* reference the new lseg */
1933 if (pgio->pg_ops->pg_cleanup)
1934 pgio->pg_ops->pg_cleanup(pgio);
1935 if (pgio->pg_ops->pg_init)
1936 pgio->pg_ops->pg_init(pgio, req);
1937 return 0;
1938 }
I'm trying to figure out why that's a WARN-able path.. do you recall the
original reason for that warning?
Ben
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