cvs commit: src/sys/nfsclient nfs.h nfs_socket.c nfs_subs.c nfsmount.h

Mohan Srinivasan mohans at
Fri Oct 12 12:12:21 PDT 2007

mohans      2007-10-12 19:12:21 UTC

  FreeBSD src repository

  Modified files:
    sys/nfsclient        nfs.h nfs_socket.c nfs_subs.c nfsmount.h 
  NFS MP scaling changes.
  - Eliminate the hideous nfs_sndlock that serialized NFS/TCP request senders
    thru the sndlock.
  - Institute a new nfs_connectlock that serializes NFS/TCP reconnects. Add
    logic to wait for pending request senders to finish sending before
    reconnecting. Dial down the sb_timeo for NFS/TCP sockets to 1 sec.
  - Break out the nfs xid manipulation under a new nfs xid lock, rather than
    over loading the nfs request lock for this purpose.
  - Fix some of the locking in nfs_request.
  Many thanks to Kris Kennaway for his help with this and for initiating the
  MP scaling analysis and work. Kris also tested this patch thorougly.
  Approved by: re@ (Ken Smith)
  Revision  Changes    Path
  1.99      +2 -2      src/sys/nfsclient/nfs.h
  1.155     +123 -71   src/sys/nfsclient/nfs_socket.c
  1.147     +4 -2      src/sys/nfsclient/nfs_subs.c
  1.33      +2 -0      src/sys/nfsclient/nfsmount.h

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