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2020-01-15NFS: Additional refactoring for fs_context conversionScott Mayhew1-2/+3
Split out from commit "NFS: Add fs_context support." This patch adds additional refactoring for the conversion of NFS to use fs_context, namely: (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context. nfs_clone_mount has had several fields removed, and nfs_mount_info has been removed altogether. (*) Various functions now take an fs_context as an argument instead of nfs_mount_info, nfs_fs_context, etc. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2020-01-15nfs: don't pass nfs_subversion to ->create_server()Al Viro1-3/+2
pick it from mount_info Reviewed-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-11-03NFS/pnfs: Separate NFSv3 DS and MDS trafficTrond Myklebust1-0/+1
If a NFSv3 server is being used as both a DS and as a regular NFSv3 server, we may want to keep the IO traffic on a separate TCP connection, since it will typically have very different timeout characteristics. This patch therefore sets up a flag to separate the two modes of operation for the nfs_client. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-11-03pNFS: nfs3_set_ds_client should set NFS_CS_NOPINGTrond Myklebust1-0/+2
Connecting to the DS is a non-interactive, asynchronous task, so there is no reason to fire up an extra RPC null ping in order to ensure that the server is up. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-11-03NFS: Use non-atomic bit ops when initialising struct nfs_client_initdataTrond Myklebust1-1/+1
We don't need atomic bit ops when initialising a local structure on the stack. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-07-06pNFS: Allow multiple connections to the DSTrond Myklebust1-0/+3
If the user specifies -onconnect=<number> mount option, and the transport protocol is TCP, then set up <number> connections to the pNFS data server as well. The connections will all go to the same IP address. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2019-05-21treewide: Add SPDX license identifier for missed filesThomas Gleixner1-0/+1
Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-26NFS: Store the credential of the mount process in the nfs_serverTrond Myklebust1-0/+1
Store the credential of the mount process so that we can determine information such as the user namespace. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2016-12-01NFS: Remove unused authflavour parameter from nfs_get_client()Anna Schumaker1-3/+2
This parameter hasn't been used since f8407299 (Linux 3.11-rc2), so let's remove it from this function and callers. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-07-19nfs4: flexfiles: respect noresvport when establishing connections to DSesTigran Mkrtchyan1-1/+5
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2016-06-30NFS: Fix an Oops in the pNFS files and flexfiles connection setup to the DSTrond Myklebust1-3/+5
Chris Worley reports: RIP: 0010:[<ffffffffa0245f80>] [<ffffffffa0245f80>] rpc_new_client+0x2a0/0x2e0 [sunrpc] RSP: 0018:ffff880158f6f548 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff880234f8bc00 RCX: 000000000000ea60 RDX: 0000000000074cc0 RSI: 000000000000ea60 RDI: ffff880234f8bcf0 RBP: ffff880158f6f588 R08: 000000000001ac80 R09: ffff880237003300 R10: ffff880201171000 R11: ffffea0000d75200 R12: ffffffffa03afc60 R13: ffff880230c18800 R14: 0000000000000000 R15: ffff880158f6f680 FS: 00007f0e32673740(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000008 CR3: 0000000234886000 CR4: 00000000001406e0 Stack: ffffffffa047a680 0000000000000000 ffff880158f6f598 ffff880158f6f680 ffff880158f6f680 ffff880234d11d00 ffff88023357f800 ffff880158f6f7d0 ffff880158f6f5b8 ffffffffa024660a ffff880158f6f5b8 ffffffffa02492ec Call Trace: [<ffffffffa024660a>] rpc_create_xprt+0x1a/0xb0 [sunrpc] [<ffffffffa02492ec>] ? xprt_create_transport+0x13c/0x240 [sunrpc] [<ffffffffa0246766>] rpc_create+0xc6/0x1a0 [sunrpc] [<ffffffffa038e695>] nfs_create_rpc_client+0xf5/0x140 [nfs] [<ffffffffa038f31a>] nfs_init_client+0x3a/0xd0 [nfs] [<ffffffffa038f22f>] nfs_get_client+0x25f/0x310 [nfs] [<ffffffffa025cef8>] ? rpc_ntop+0xe8/0x100 [sunrpc] [<ffffffffa047512c>] nfs3_set_ds_client+0xcc/0x100 [nfsv3] [<ffffffffa041fa10>] nfs4_pnfs_ds_connect+0x120/0x400 [nfsv4] [<ffffffffa03d41c7>] nfs4_ff_layout_prepare_ds+0xe7/0x330 [nfs_layout_flexfiles] [<ffffffffa03d1b1b>] ff_layout_pg_init_write+0xcb/0x280 [nfs_layout_flexfiles] [<ffffffffa03a14dc>] __nfs_pageio_add_request+0x12c/0x490 [nfs] [<ffffffffa03a1fa2>] nfs_pageio_add_request+0xc2/0x2a0 [nfs] [<ffffffffa03a0365>] ? nfs_pageio_init+0x75/0x120 [nfs] [<ffffffffa03a5b50>] nfs_do_writepage+0x120/0x270 [nfs] [<ffffffffa03a5d31>] nfs_writepage_locked+0x61/0xc0 [nfs] [<ffffffff813d4115>] ? __percpu_counter_add+0x55/0x70 [<ffffffffa03a6a9f>] nfs_wb_single_page+0xef/0x1c0 [nfs] [<ffffffff811ca4a3>] ? __dec_zone_page_state+0x33/0x40 [<ffffffffa0395b21>] nfs_launder_page+0x41/0x90 [nfs] [<ffffffff811baba0>] invalidate_inode_pages2_range+0x340/0x3a0 [<ffffffff811bac17>] invalidate_inode_pages2+0x17/0x20 [<ffffffffa039960e>] nfs_release+0x9e/0xb0 [nfs] [<ffffffffa0399570>] ? nfs_open+0x60/0x60 [nfs] [<ffffffffa0394dad>] nfs_file_release+0x3d/0x60 [nfs] [<ffffffff81226e6c>] __fput+0xdc/0x1e0 [<ffffffff81226fbe>] ____fput+0xe/0x10 [<ffffffff810bf2e4>] task_work_run+0xc4/0xe0 [<ffffffff810a4188>] do_exit+0x2e8/0xb30 [<ffffffff8102471c>] ? do_audit_syscall_entry+0x6c/0x70 [<ffffffff811464e6>] ? __audit_syscall_exit+0x1e6/0x280 [<ffffffff810a4a5f>] do_group_exit+0x3f/0xa0 [<ffffffff810a4ad4>] SyS_exit_group+0x14/0x20 [<ffffffff8179b76e>] system_call_fastpath+0x12/0x71 Which seems to be due to a call to utsname() when in a task exit context in order to determine the hostname to set in rpc_new_client(). In reality, what we want here is not the hostname of the current task, but the hostname that was used to set up the metadata server. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-02-03nfs: set hostname when creating nfsv3 ds connectionPeng Tao1-0/+7
lockd assumes hostname exists otherwise kernel oops. It can be reproduced by following steps: 1. mount flexfile MDS 2. write some files 3. mount DS via nfsv3 BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff8134f332>] strlen+0x2/0x20 PGD 0 Oops: 0000 [#1] SMP Modules linked in: nfsd(F) nfs_layout_flexfiles(F) rpcsec_gss_krb5(F) auth_rpcgss(F) nfsv4(F) dns_resolver(F) nfsv3(F) nfs_acl(F) nfs(F) lockd(F) sunrpc(F) fscache(F) ebtable_nat(F) nf_conntrack_netbios_ns(F) nf_conntrack_broadcast(F) ipt_MASQUERADE(F) ip6table_nat(F) nf_nat_ipv6(F) ip6table_mangle(F) ip6t_REJECT(F) nf_conntrack_ipv6(F) nf_defrag_ipv6(F) iptable_nat(F) nf_nat_ipv4(F) nf_nat(F) iptable_mangle(F) nf_conntrack_ipv4(F) nf_defrag_ipv4(F) xt_conntrack(F) nf_conntrack(F) ebtable_filter(F) ebtables(F) ip6table_filter(F) ip6_tables(F) bnep(F) snd_ens1371(F) snd_rawmidi(F) snd_ac97_codec(F) btusb(F) ac97_bus(F) snd_seq(F) snd_seq_device(F) snd_pcm(F) ppdev(F) bluetooth(F) 6lowpan_iphc(F) rfkill(F) vmw_balloon(F) snd_timer(F) snd(F) soundcore(F) gameport(F) i2c_piix4(F) e1000(F) vmw_vmci(F) parport_pc(F) parport(F) shpchp(F) uinput(F) xfs(F) libcrc32c(F) vmwgfx(F) ttm(F) drm(F) mptspi(F) scsi_transport_spi(F) mptscsih(F) mptbase(F) i2c_core(F) CPU: 0 PID: 10397 Comm: mount.nfs Tainted: GF 3.14.7-100.pd_client.001.fc16.x86_64 #1 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 07/31/2013 task: ffff880008942600 ti: ffff880007990000 task.ti: ffff880007990000 RIP: 0010:[<ffffffff8134f332>] [<ffffffff8134f332>] strlen+0x2/0x20 RSP: 0018:ffff880007991aa0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff880038d39c20 RCX: 0000000000000004 RDX: 0000000000000006 RSI: 0000000000000010 RDI: 0000000000000000 RBP: ffff880007991b38 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000014600 R11: 0000000000000400 R12: ffffffff81cc8580 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000004 FS: 00007f90cd2ef880(0000) GS:ffff88003f600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000001710000 CR4: 00000000001407f0 Stack: ffffffffa045f52c ffff880001782230 ffff880004141e28 0006880007991ac8 ffffffff816dc14b ffff880000000000 ffff880038d39c20 0000000000000010 0000000481cc0006 0000000000000000 ffffffffa0410be8 000000000000c014 Call Trace: [<ffffffffa045f52c>] ? nlmclnt_lookup_host+0x4c/0x2c0 [lockd] [<ffffffff816dc14b>] ? _raw_spin_unlock_bh+0x1b/0x20 [<ffffffffa0410be8>] ? svc_destroy+0xb8/0x140 [sunrpc] [<ffffffffa045c323>] nlmclnt_init+0x53/0xc0 [lockd] [<ffffffffa047d2dc>] ? nfs_get_client+0x1cc/0x340 [nfs] [<ffffffffa047c2e7>] nfs_start_lockd+0xa7/0xd0 [nfs] [<ffffffffa047df71>] nfs_create_server+0x181/0x5c0 [nfs] [<ffffffffa04460f3>] nfs3_create_server+0x13/0x30 [nfsv3] [<ffffffffa048a0bc>] nfs_try_mount+0x21c/0x300 [nfs] [<ffffffff811ca32d>] ? __kmalloc_track_caller+0x1ad/0x240 [<ffffffffa048b677>] ? nfs_fs_mount+0xc37/0xd80 [nfs] [<ffffffffa048ad05>] nfs_fs_mount+0x2c5/0xd80 [nfs] [<ffffffffa048a830>] ? nfs_clone_super+0x140/0x140 [nfs] [<ffffffffa048a240>] ? nfs_clone_sb_security+0x40/0x40 [nfs] [<ffffffff811e7e43>] mount_fs+0x43/0x1b0 [<ffffffff81193100>] ? __alloc_percpu+0x10/0x20 [<ffffffff812026e6>] vfs_kern_mount+0x76/0x120 [<ffffffff81204917>] do_mount+0x237/0xa80 Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2015-02-03nfsv3: introduce nfs3_set_ds_clientPeng Tao1-0/+34
The flexfiles layout wants to create DS connection over NFSv3. Add nfs3_set_ds_client to allow that to happen. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>
2014-09-25NFSv3: Fix missing includes of nfs3_fs.hTrond Myklebust1-0/+1
Silence a few warnings about missing symbols that are due to missing includes of nfs3_fs.h. Fixes: 00a36a1090350 (NFS: Move v3 declarations out of internal.h) Fixes: cb8c20fa53ec2 (NFS: Move NFS v3 acl functions to nfs3_fs.h) Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2012-07-30NFS: Only initialize the ACL client in the v3 caseBryan Schumaker1-0/+65
v2 and v4 don't use it, so I create two new nfs_rpc_ops functions to initialize the ACL client only when we are using v3. Signed-off-by: Bryan Schumaker <bjschuma@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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