Version 2 of the NFSv4.1 DRC rewrite. V1 -> V2 Differences: 1) Separate structure for the single slot clientid cache because it does not need several of the fields that the sessions multiple slot cache needs, and has a different static cache buffer size. 2) Move from a dynamic to a static buffer allocation for the sessions DRC because we can't promise the client to be able to cache a response and then run out of memory and not be able to cache a response. Switch from a 1024 byte to a 512 byte buffer. 3) Removed struct nfsd4_cache_entry, replaced by new nfsd4_slot fields. 4) Global DRC memory limit tracking. This is a rewrite of the NFSv4.1 DRC, switching from a page based cache to a buffer based cache. The logic for the single slot clientid cache has been separated from the session slot logic to handle the CREATE_SESSION call preceeded by a SEQUENCE and all the replay combinations therein. The session DRC now caches encoded operations with the exception of the SEQUENCE operation which for a replay is encoded with the current slot and session values. A review of message sizes indicates that a 512 byte buffer for the operations is adequate. Not addressed is the necessary pre-operation processing estimate of the encoded per operation result to check against the negotiated fore channel maximum response size cached. I've tested NFSv4.1 mounts using Connectathon and the new pynfs 4.1 tests, where I added two new Clientid cache replay tests [to be submitted]to st_create_session.py. I've tested NFSv4.0 mounts using Connectathon and the pynfs v4.0 tests. As always, comments and suggestions welcome. -->Andy Bug fix 0001-nfsd41-slots-are-freed-with-session.patch Clientid single slot cache 0002-nfsd41-change-check_slot_seqid-parameters.patch 0003-nfsd41-turn-off-create-session-caching.patch 0004-nfsd41-separate-clientid-slot-from-session-slot.patch 0005-nfsd41-encode-create_session-result-into-cache.patch 0006-nfsd41-create_session-check-replay-first.patch 0007-nfsd41-replay-solo-and-embedded-create-session.patch Session slot cache 0008-nfsd41-sanity-check-client-drc-maxreqs.patch 0009-nfsd41-change-from-page-to-memory-based-drc-limits.patch 0010-nfsd41-use-globals-for-DRC-memory-use-management.patch 0011-nfsd41-set-the-session-maximum-response-size-cached.patch 0012-nfsd41-use-static-buffers-for-sessions-DRC.patch 0013-nfsd41-replace-ce_cachethis-with-nfsd4_slot-field.patch 0014-nfsd41-replace-ce_opcnt-with-nfsd4_slot-field.patch 0015-nfsd41-nfsd41-replace-ce_status-with-nfsd4_slot-fi.patch 0016-nfsd41-obliterate-nfsd4_copy_pages.patch 0017-nfsd41-obliterate-nfsd41_copy_replay_data.patch 0018-nfsd41-obliterate-nfsd4_release_respages.patch 0019-nfsd41-remove-iovlen-field-from-nfsd4_compound_stat.patch 0020-nfsd41-remove-struct-nfsd4_cache_entry.patch 0021-nfsd41-obliterate-nfsd4_set_statp.patch 0022-nfsd41-rename-nfsd4_enc_uncached_replay.patch 0023-nfsd41-encode-replay-sequence-from-the-slot-values.patch 0024-nfsd41-fix-nfsd4_replay_cache_entry-comments.patch 0025-nfsd41-fix-nfsd4_store_cache_entry-comments.patch 0026-nfsd41-support-16-slots-per-session.patch 0027-nfsd41-use-the-maximum-operations-per-compound-in-n.patch 0028-nfsd41-fix-nfsd4_store_cache_entry-dprintk.patch 0029-nfsd41-add-test-for-failed-sequence-operation.patch 0030-nfsd41-remove-redundant-failed-sequence-check.patch 0031-nfsd41-only-reference-the-session-on-non-replay-seq.patch -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
