13 Jul, 2011

3 commits

• c47abcf8f   NFSv4.1: do not use deviceids after MDS clientid invalidation ... Browse Code »

  Mark all deviceids established under an expired MDS clientid as invalid.
  Stop all new i/o through DS and send through the MDS.
  Don't use any new LAYOUTGETs that use the invalid deviceid. Purge all layouts
  established under the expired MDS clientid.
  Remove the MDS clientid deviceid and data servers reference

  Signed-off-by: Andy Adamson
  Signed-off-by: Trond Myklebust

  Andy Adamson

  2011-07-13 01:40:29 +0800  
• 14f9a6076   NFS: Parse and store all multipath DS addresses ... Browse Code »

  This parses and stores all addresses associated with each data server,
  laying the groundwork for supporting multipath to data servers.

  - Skips over addresses that cannot be parsed (ie IPv6 addrs if v6 is not
  enabled). Only fails if none of the addresses are recognizable
  - Currently only uses the first address that parsed cleanly
  - Tested against pynfs server (modified to support multipath)

  Signed-off-by: Weston Andros Adamson
  Signed-off-by: Trond Myklebust

  Weston Andros Adamson

  2011-07-13 01:40:27 +0800  
• c9895cb69   NFS: pnfs IPv6 support ... Browse Code »

  Handle ipv6 remote addresses from GETDEVICEINFO

  - supports netid "tcp" for ipv4 and "tcp6" for ipv6 as rfc 5665 specifies
  - added ds_remotestr to avoid having to handle different AFs in every dprintk
  - tested against pynfs 4.1 server, submitting ipv6 support patch to pynfs
  - tested with IPv6 disabled, it compiles cleanly and relies on rpc_pton to
  refuse to accept IPv6 addresses

  Signed-off-by: Weston Andros Adamson
  Signed-off-by: Trond Myklebust

  Weston Andros Adamson

  2011-07-13 01:40:26 +0800  

30 May, 2011

1 commit

• 1775bc342   NFSv4.1: purge deviceid cache on nfs_free_client ... Browse Code »

  Use the pnfs_layoutdriver_type both as a qualifier for the deviceid,
  distinguishing deviceid from different layout types on the server,
  and for freeing the layout-driver allocated structure containing the
  nfs4_deviceid_node.

  [BUG in _deviceid_purge_client]
  [layout_driver MUST set free_deviceid_node if using dev-cache]
  [let ver < 4.1 compile]
  Signed-off-by: Boaz Harrosh
  [removed EXPORT_SYMBOL_GPL(nfs4_deviceid_purge_client)]
  Signed-off-by: Benny Halevy

  Benny Halevy

  2011-05-30 01:50:42 +0800  

29 May, 2011

2 commits

• a1eaecbc4   NFSv4.1: make deviceid cache global ... Browse Code »

  Move deviceid cache from the pnfs files layout driver to the
  generic layer in preparation for the objects layout driver.

  Signed-off-by: Benny Halevy

  Benny Halevy

  2011-05-29 17:09:48 +0800  
• 67d51f65b   NFSv4.1: use struct nfs_client to qualify deviceid ... Browse Code »

  deviceids are unique per server, per layout type.
  Therefore, in the global cache in the files layout driver
  deviceids from different servers may clash so we need
  to qualify them with a struct nfs_client that represents
  the nfs server that returned the deviceid.

  Introduced in 2.6.39 commit ea8eecdd
  "NFSv4.1 move deviceid cache to filelayout driver"

  Signed-off-by: Benny Halevy

  Benny Halevy

  2011-05-29 17:09:47 +0800  

12 May, 2011

1 commit

• a75b9df9d   NFSv4.1: Ensure that layoutget uses the correct gfp modes ... Browse Code »

  Currently, writebacks may end up recursing back into the filesystem due to
  GFP_KERNEL direct reclaims in the pnfs subsystem.

  Signed-off-by: Trond Myklebust

  Trond Myklebust

  2011-05-12 10:52:13 +0800  

31 Mar, 2011

1 commit

• 25985edce   Fix common misspellings ... Browse Code »

  Fixes generated by 'codespell' and manually reviewed.

  Signed-off-by: Lucas De Marchi

  Lucas De Marchi

  2011-03-31 22:26:23 +0800  

24 Mar, 2011

1 commit

• 425eb736c   NFSv4.1: alloc and free commit_buckets ... Browse Code »

  Create a preallocated list header to hold nfs_pages for each
  non-MDS COMMIT destination. Note this is not necessarily each DS,
  but is basically each pair.

  Signed-off-by: Fred Isaman
  Signed-off-by: Trond Myklebust

  Fred Isaman

  2011-03-24 03:29:03 +0800  

12 Mar, 2011

3 commits

• 568e8c494   NFSv4.1: turn off pNFS on ds connection failure ... Browse Code »

  If a data server is unavailable, go through MDS.

  Mark the deviceid containing the data server as a negative cache entry.
  Do not try to connect to any data server on a deviceid marked as a negative
  cache entry. Mark any layout that tries to use the marked deviceid as failed.

  Inodes with a layout marked as fails will not use the layout for I/O, and will
  not perform any more layoutgets.
  Inodes without a layout will still do layoutget, but the layout will get
  marked immediately.

  Signed-off-by: Andy Adamson
  Signed-off-by: Trond Myklebust

  Andy Adamson

  2011-03-12 04:38:43 +0800  
• ea8eecdd1   NFSv4.1 move deviceid cache to filelayout driver ... Browse Code »

  No need for generic cache with only one user.
  Keep a simple hash of deviceids in the filelayout driver.

  Signed-off-by: Christoph Hellwig
  Acked-by: Andy Adamson
  Signed-off-by: Trond Myklebust

  Christoph Hellwig

  2011-03-12 04:38:43 +0800  
• cfe7f4120   NFSv4.1: filelayout i/o helpers ... Browse Code »

  Prepare for filelayout_read_pagelist with helper functions that find the correct
  data server, filehandle, and offset.

  Signed-off-by: Andy Adamson
  Signed-off-by: Dean Hildebrand
  Signed-off-by: Fred Isaman
  Signed-off-by: Marc Eshel
  Signed-off-by: Mike Sager
  Signed-off-by: Oleg Drokin
  Signed-off-by: Tao Guo
  Signed-off-by: Tigran Mkrtchyan
  Signed-off-by: Tigran Mkrtchyan
  Signed-off-by: Andy Adamson
  Signed-off-by: Benny Halevy
  Signed-off-by: Trond Myklebust

  Fred Isaman

  2011-03-12 04:38:42 +0800  

25 Oct, 2010

1 commit

• 16b374ca4   NFSv4.1: pnfs: filelayout: add driver's LAYOUTGET and GETDEVICEINFO infrastructure ... Browse Code »

  Implement the driver's io_ops->alloc_lseg and free_lseg functions,
  which integrate into the deviceid cache and calls out to
  nfs4_proc_getdeviceinfo when necessary.

  Signed-off-by: Andy Adamson
  Signed-off-by: Dean Hildebrand
  Signed-off-by: Marc Eshel
  Signed-off-by: Mike Sager
  Signed-off-by: Oleg Drokin
  Signed-off-by: Ricardo Labiaga
  Signed-off-by: Tao Guo
  Signed-off-by: Boaz Harrosh
  Signed-off-by: Fred Isaman
  Signed-off-by: Trond Myklebust

  Andy Adamson

  2010-10-25 06:07:11 +0800