• Linus Torvalds's avatar
    Merge tag 'nfsd-4.20' of git://linux-nfs.org/~bfields/linux · 310c7585
    Linus Torvalds authored
    Pull nfsd updates from Bruce Fields:
     "Olga added support for the NFSv4.2 asynchronous copy protocol. We
      already supported COPY, by copying a limited amount of data and then
      returning a short result, letting the client resend. The asynchronous
      protocol should offer better performance at the expense of some
      complexity.
    
      The other highlight is Trond's work to convert the duplicate reply
      cache to a red-black tree, and to move it and some other server caches
      to RCU. (Previously these have meant taking global spinlocks on every
      RPC)
    
      Otherwise, some RDMA work and miscellaneous bugfixes"
    
    * tag 'nfsd-4.20' of git://linux-nfs.org/~bfields/linux: (30 commits)
      lockd: fix access beyond unterminated strings in prints
      nfsd: Fix an Oops in free_session()
      nfsd: correctly decrement odstate refcount in error path
      svcrdma: Increase the default connection credit limit
      svcrdma: Remove try_module_get from backchannel
      svcrdma: Remove ->release_rqst call in bc reply handler
      svcrdma: Reduce max_send_sges
      nfsd: fix fall-through annotations
      knfsd: Improve lookup performance in the duplicate reply cache using an rbtree
      knfsd: Further simplify the cache lookup
      knfsd: Simplify NFS duplicate replay cache
      knfsd: Remove dead code from nfsd_cache_lookup
      SUNRPC: Simplify TCP receive code
      SUNRPC: Replace the cache_detail->hash_lock with a regular spinlock
      SUNRPC: Remove non-RCU protected lookup
      NFS: Fix up a typo in nfs_dns_ent_put
      NFS: Lockless DNS lookups
      knfsd: Lockless lookup of NFSv4 identities.
      SUNRPC: Lockless server RPCSEC_GSS context lookup
      knfsd: Allow lockless lookups of the exports
      ...
    310c7585
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