1. 17 May, 2016 5 commits
    • Shirley Ma's avatar
      xprtrdma: Add rdma6 option to support NFS/RDMA IPv6 · 181342c5
      Shirley Ma authored
      RFC 5666: The "rdma" netid is to be used when IPv4 addressing
      is employed by the underlying transport, and "rdma6" for IPv6
      addressing.
      
      Add mount -o proto=rdma6 option to support NFS/RDMA IPv6 addressing.
      
      Changes from v2:
       - Integrated comments from Chuck Level, Anna Schumaker, Trodt Myklebust
       - Add a little more to the patch description to describe NFS/RDMA
         IPv6 suggested by Chuck Level and Anna Schumaker
       - Removed duplicated rdma6 define
       - Remove Opt_xprt_rdma mountfamily since it doesn't support
      Signed-off-by: default avatarShirley Ma <shirley.ma@oracle.com>
      Reviewed-by: default avatarChuck Lever <chuck.lever@oracle.com>
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      181342c5
    • Tigran Mkrtchyan's avatar
      nfs4: client: do not send empty SETATTR after OPEN_CREATE · a1d1c4f1
      Tigran Mkrtchyan authored
      OPEN_CREATE with EXCLUSIVE4_1 sends initial file permission.
      Ignoring  fact, that server have indicated that file mod is set, client
      will send yet another SETATTR request, but, as mode is already set,
      new SETATTR will be empty. This is not a problem, nevertheless
      an extra roundtrip and slow open on high latency networks.
      
      This change is aims to skip extra setattr after open  if there are
      no attributes to be set.
      Signed-off-by: default avatarTigran Mkrtchyan <tigran.mkrtchyan@desy.de>
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      a1d1c4f1
    • Anna Schumaker's avatar
      NFS: Add COPY nfs operation · 2e72448b
      Anna Schumaker authored
      This adds the copy_range file_ops function pointer used by the
      sys_copy_range() function call.  This patch only implements sync copies,
      so if an async copy happens we decode the stateid and ignore it.
      Signed-off-by: default avatarAnna Schumaker <bjschuma@netapp.com>
      2e72448b
    • Anna Schumaker's avatar
      NFS: Add nfs_commit_file() · 67911c8f
      Anna Schumaker authored
      Copy will use this to set up a commit request for a generic range.  I
      don't want to allocate a new pagecache entry for the file, so I needed
      to change parts of the commit path to handle requests with a null
      wb_page.
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      67911c8f
    • Olga Kornievskaia's avatar
      Fixing oops in callback path · c2985d00
      Olga Kornievskaia authored
      Commit 80f96427 ("NFSv4.x: Enforce the ca_maxreponsesize_cached
      on the back channel") causes an oops when it receives a callback with
      cachethis=yes.
      
      [  109.667378] BUG: unable to handle kernel NULL pointer dereference at 00000000000002c8
      [  109.669476] IP: [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.671216] PGD 0
      [  109.671736] Oops: 0000 [#1] SMP
      [  109.705427] CPU: 1 PID: 3579 Comm: nfsv4.1-svc Not tainted 4.5.0-rc1+ #1
      [  109.706987] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 05/20/2014
      [  109.709468] task: ffff8800b4408000 ti: ffff88008448c000 task.ti: ffff88008448c000
      [  109.711207] RIP: 0010:[<ffffffffa08a3e68>]  [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.713521] RSP: 0018:ffff88008448fca0  EFLAGS: 00010286
      [  109.714762] RAX: ffff880081ee202c RBX: ffff8800b7b5b600 RCX: 0000000000000001
      [  109.716427] RDX: 0000000000000008 RSI: 0000000000000008 RDI: 0000000000000000
      [  109.718091] RBP: ffff88008448fda8 R08: 0000000000000000 R09: 000000000b000000
      [  109.719757] R10: ffff880137786000 R11: ffff8800b7b5b600 R12: 0000000001000000
      [  109.721415] R13: 0000000000000002 R14: 0000000053270000 R15: 000000000000000b
      [  109.723061] FS:  0000000000000000(0000) GS:ffff880139640000(0000) knlGS:0000000000000000
      [  109.724931] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      [  109.726278] CR2: 00000000000002c8 CR3: 0000000034d50000 CR4: 00000000001406e0
      [  109.727972] Stack:
      [  109.728465]  ffff880081ee202c ffff880081ee201c 000000008448fcc0 ffff8800baccb800
      [  109.730349]  ffff8800baccc800 ffffffffa08d0380 0000000000000000 0000000000000000
      [  109.732211]  ffff8800b7b5b600 0000000000000001 ffffffff81d073c0 ffff880081ee3090
      [  109.734056] Call Trace:
      [  109.734657]  [<ffffffffa03795d4>] svc_process_common+0x5c4/0x6c0 [sunrpc]
      [  109.736267]  [<ffffffffa0379a4c>] bc_svc_process+0x1fc/0x360 [sunrpc]
      [  109.737775]  [<ffffffffa08a2c2c>] nfs41_callback_svc+0x10c/0x1d0 [nfsv4]
      [  109.739335]  [<ffffffff810cb380>] ? prepare_to_wait_event+0xf0/0xf0
      [  109.740799]  [<ffffffffa08a2b20>] ? nfs4_callback_svc+0x50/0x50 [nfsv4]
      [  109.742349]  [<ffffffff810a6998>] kthread+0xd8/0xf0
      [  109.743495]  [<ffffffff810a68c0>] ? kthread_park+0x60/0x60
      [  109.744776]  [<ffffffff816abc4f>] ret_from_fork+0x3f/0x70
      [  109.746037]  [<ffffffff810a68c0>] ? kthread_park+0x60/0x60
      [  109.747324] Code: cc 45 31 f6 48 8b 85 00 ff ff ff 44 89 30 48 8b 85 f8 fe ff ff 44 89 20 48 8b 9d 38 ff ff ff 48 8b bd 30 ff ff ff 48 85 db 74 4c <4c> 8b af c8 02 00 00 4d 8d a5 08 02 00 00 49 81 c5 98 02 00 00
      [  109.754361] RIP  [<ffffffffa08a3e68>] nfs4_callback_compound+0x4f8/0x690 [nfsv4]
      [  109.756123]  RSP <ffff88008448fca0>
      [  109.756951] CR2: 00000000000002c8
      [  109.757738] ---[ end trace 2b8555511ab5dfb4 ]---
      [  109.758819] Kernel panic - not syncing: Fatal exception
      [  109.760126] Kernel Offset: disabled
      [  118.938934] ---[ end Kernel panic - not syncing: Fatal exception
      
      It doesn't unlock the table nor does it set the cps->clp pointer which
      is later needed by nfs4_cb_free_slot().
      
      Fixes: 80f96427 ("NFSv4.x: Enforce the ca_maxresponsesize_cached ...")
      CC: stable@vger.kernel.org
      Signed-off-by: default avatarOlga Kornievskaia <kolga@netapp.com>
      Signed-off-by: default avatarAnna Schumaker <Anna.Schumaker@Netapp.com>
      c2985d00
  2. 09 May, 2016 13 commits
  3. 08 May, 2016 1 commit
  4. 07 May, 2016 7 commits
  5. 06 May, 2016 14 commits