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2015-02-05vfs: add support for a lazytime mount optionTheodore Ts'o8-31/+110
Add a new mount option which enables a new "lazytime" mode. This mode causes atime, mtime, and ctime updates to only be made to the in-memory version of the inode. The on-disk times will only get updated when (a) if the inode needs to be updated for some non-time related change, (b) if userspace calls fsync(), syncfs() or sync(), or (c) just before an undeleted inode is evicted from memory. This is OK according to POSIX because there are no guarantees after a crash unless userspace explicitly requests via a fsync(2) call. For workloads which feature a large number of random write to a preallocated file, the lazytime mount option significantly reduces writes to the inode table. The repeated 4k writes to a single block will result in undesirable stress on flash devices and SMR disk drives. Even on conventional HDD's, the repeated writes to the inode table block will trigger Adjacent Track Interference (ATI) remediation latencies, which very negatively impact long tail latencies --- which is a very big deal for web serving tiers (for example). Google-Bug-Id: 18297052 Signed-off-by: Theodore Ts'o <[email protected]> Signed-off-by: Al Viro <[email protected]>
2015-02-04Btrfs: add missing blk_finish_plug in btrfs_sync_log()Forrest Liu1-0/+1
Add missing blk_finish_plug in btrfs_sync_log() Signed-off-by: Forrest Liu <[email protected]> Reviewed-by: David Sterba <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2015-02-05xfs: xfs_ioctl_setattr_check_projid can be statickbuild test robot1-2/+2
fs/xfs/xfs_ioctl.c:1146:1: sparse: symbol 'xfs_ioctl_setattr_check_projid' was not declared. Should it be static? Also fix xfs_ioctl_setattr_check_extsize at the same time. Signed-off-by: Fengguang Wu <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-02-05xfs: growfs should use synchronous transactionsChristoph Hellwig1-0/+1
Growfs updates the secondary superblocks using synchronous unlogged buffer writes after committing the updates to the primary superblock. Mark the transaction to the primary superblock as synchronous so that we guarantee it is committed to disk before we update the secondary superblocks. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-02-04Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds3-4/+10
Pull cifs fixes from Steve French: "Three small cifs fixes. One fixes a hang under stress, and the other two are security related" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix MUST SecurityFlags filtering Complete oplock break jobs before closing file handle cifs: use memzero_explicit to clear stack buffer
2015-02-04NFSv4.1: Ask for no delegation on OPEN if using O_DIRECTTrond Myklebust2-26/+83
If we're using NFSv4.1, then we have the ability to let the server know whether or not we believe that returning a delegation as part of our OPEN request would be useful. The feature needs to be used with care, since the client sending the request doesn't necessarily know how other clients are using that file, and how they may be affected by the delegation. For this reason, our initial use of the feature will be to let the server know when the client believes that handing out a delegation would not be useful. The first application for this function is when opening the file using O_DIRECT. Signed-off-by: Trond Myklebust <[email protected]>
2015-02-04GFS2: use __vmalloc GFP_NOFS for fs-related allocations.Oleg Drokin1-1/+2
leaf_dealloc uses vzalloc as a fallback to kzalloc(GFP_NOFS), so it clearly does not want any shrinker activity within the fs itself. convert vzalloc into __vmalloc(GFP_NOFS|__GFP_ZERO) to better achieve this goal. Signed-off-by: Oleg Drokin <[email protected]> Signed-off-by: Steven Whitehouse <[email protected]>
2015-02-04rxrpc: make the users of rxrpc_kernel_send_data() set kvec-backed msg_iter ↵Al Viro1-7/+7
properly Use iov_iter_kvec() there, get rid of set_fs() games - now that rxrpc_send_data() uses iov_iter primitives, it'll handle ITER_KVEC just fine. Signed-off-by: Al Viro <[email protected]>
2015-02-03aio: annotate aio_read_event_ring for sleep patternsDave Chinner1-0/+7
Under CONFIG_DEBUG_ATOMIC_SLEEP=y, aio_read_event_ring() will throw warnings like the following due to being called from wait_event context: WARNING: CPU: 0 PID: 16006 at kernel/sched/core.c:7300 __might_sleep+0x7f/0x90() do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff810d85a3>] prepare_to_wait_event+0x63/0x110 Modules linked in: CPU: 0 PID: 16006 Comm: aio-dio-fcntl-r Not tainted 3.19.0-rc6-dgc+ #705 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 ffffffff821c0372 ffff88003c117cd8 ffffffff81daf2bd 000000000000d8d8 ffff88003c117d28 ffff88003c117d18 ffffffff8109beda ffff88003c117cf8 ffffffff821c115e 0000000000000061 0000000000000000 00007ffffe4aa300 Call Trace: [<ffffffff81daf2bd>] dump_stack+0x4c/0x65 [<ffffffff8109beda>] warn_slowpath_common+0x8a/0xc0 [<ffffffff8109bf56>] warn_slowpath_fmt+0x46/0x50 [<ffffffff810d85a3>] ? prepare_to_wait_event+0x63/0x110 [<ffffffff810d85a3>] ? prepare_to_wait_event+0x63/0x110 [<ffffffff810bdfcf>] __might_sleep+0x7f/0x90 [<ffffffff81db8344>] mutex_lock+0x24/0x45 [<ffffffff81216b7c>] aio_read_events+0x4c/0x290 [<ffffffff81216fac>] read_events+0x1ec/0x220 [<ffffffff810d8650>] ? prepare_to_wait_event+0x110/0x110 [<ffffffff810fdb10>] ? hrtimer_get_res+0x50/0x50 [<ffffffff8121899d>] SyS_io_getevents+0x4d/0xb0 [<ffffffff81dba5a9>] system_call_fastpath+0x12/0x17 ---[ end trace bde69eaf655a4fea ]--- There is not actually a bug here, so annotate the code to tell the debug logic that everything is just fine and not to fire a false positive. Signed-off-by: Dave Chinner <[email protected]> Signed-off-by: Benjamin LaHaise <[email protected]>
2015-02-03sysfs: fix warning when creating a sysfs group without attributesJavi Merino1-1/+1
When attempting to create a gropu without attrs, the warning prints the name of the group. However, the check for name being a NULL pointer is wrong: it uses the pointer to the name when it's NULL. Fix it to use the name if present, otherwise just put an empty string. Cc: Bruno Prémont <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Javi Merino <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2015-02-03SUNRPC: NULL utsname dereference on NFS umount during namespace cleanupTrond Myklebust1-4/+9
Fix an Oopsable condition when nsm_mon_unmon is called as part of the namespace cleanup, which now apparently happens after the utsname has been freed. Link: http://lkml.kernel.org/r/[email protected] Reported-by: Bruno Prémont <[email protected]> Cc: [email protected] # 3.18 Signed-off-by: Trond Myklebust <[email protected]>
2015-02-03Merge branch 'flexfiles'Trond Myklebust31-1020/+4206
* flexfiles: (53 commits) pnfs: lookup new lseg at lseg boundary nfs41: .init_read and .init_write can be called with valid pg_lseg pnfs: Update documentation on the Layout Drivers pnfs/flexfiles: Add the FlexFile Layout Driver nfs: count DIO good bytes correctly with mirroring nfs41: wait for LAYOUTRETURN before retrying LAYOUTGET nfs: add a helper to set NFS_ODIRECT_RESCHED_WRITES to direct writes nfs41: add NFS_LAYOUT_RETRY_LAYOUTGET to layout header flags nfs/flexfiles: send layoutreturn before freeing lseg nfs41: introduce NFS_LAYOUT_RETURN_BEFORE_CLOSE nfs41: allow async version layoutreturn nfs41: add range to layoutreturn args pnfs: allow LD to ask to resend read through pnfs nfs: add nfs_pgio_current_mirror helper nfs: only reset desc->pg_mirror_idx when mirroring is supported nfs41: add a debug warning if we destroy an unempty layout pnfs: fail comparison when bucket verifier not set nfs: mirroring support for direct io nfs: add mirroring support to pgio layer pnfs: pass ds_commit_idx through the commit path ... Conflicts: fs/nfs/pnfs.c fs/nfs/pnfs.h
2015-02-03pnfs: lookup new lseg at lseg boundaryWeston Andros Adamson1-2/+8
Before mirroring support was added, the pageio descriptor's pg_lseg was set to null when an RPC was sent. Because of this, pg_init was called at lseg boundaries with pg_lseg = NULL, and it could be set to the new lseg. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03nfs41: .init_read and .init_write can be called with valid pg_lsegPeng Tao1-21/+20
With pgio refactoring in v3.15, .init_read and .init_write can be called with valid pgio->pg_lseg. file layout was fixed at that time by commit c6194271f (pnfs: filelayout: support non page aligned layouts). But the generic helper still needs to be fixed. Cc: [email protected] # 3.15+ Signed-off-by: Peng Tao <[email protected]>
2015-02-03pnfs/flexfiles: Add the FlexFile Layout DriverTom Haynes10-12/+2320
The flexfile layout is a new layout that extends the file layout. It is currently being drafted as a specification at https://datatracker.ietf.org/doc/draft-ietf-nfsv4-layout-types/ Signed-off-by: Weston Andros Adamson <[email protected]> Signed-off-by: Tom Haynes <[email protected]> Signed-off-by: Tao Peng <[email protected]>
2015-02-03nfs: count DIO good bytes correctly with mirroringPeng Tao1-4/+8
When resending to MDS, we might resend multiple mirroring requests to MDS. As a result, nfs_direct_good_bytes() ends up counting bytes multiple times, causing application to get wrong return results in read/write syscalls. Fix it by tracking start of a dreq and checking the range of pgio header. Cc: Weston Andros Adamson <[email protected]> Signed-off-by: Peng Tao <[email protected]>
2015-02-03nfs41: wait for LAYOUTRETURN before retrying LAYOUTGETPeng Tao3-3/+45
Also take care to stop waiting if someone clears retry bit. Signed-off-by: Peng Tao <[email protected]>
2015-02-03nfs: add a helper to set NFS_ODIRECT_RESCHED_WRITES to direct writesPeng Tao2-0/+7
To allow pnfs LD to ask direct writes to be resend. Signed-off-by: Peng Tao <[email protected]>
2015-02-03nfs41: add NFS_LAYOUT_RETRY_LAYOUTGET to layout header flagsPeng Tao2-0/+21
Use it to indicate that LD wants to retry layoutget. LD can set it whenever it wants the common pnfs code to return and retry pnfs path through a new layout. The bit gets cleared when client does a new layoutget, when client closes the file (ROC case), or when kernel needs to evict the inode (non-ROC case). Signed-off-by: Peng Tao <[email protected]>
2015-02-03nfs/flexfiles: send layoutreturn before freeing lsegPeng Tao1-25/+56
Otherwise we'll lose error tracking information when encoding layoutreturn. pnfs_put_lseg may be called from rpc callbacks. So we should not call pnfs_send_layoutreturn directly because it can deadlock in the rpc layer. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: introduce NFS_LAYOUT_RETURN_BEFORE_CLOSEPeng Tao3-7/+36
When it is set, generic pnfs would try to send layoutreturn right before last close/delegation_return regard less NFS_LAYOUT_ROC is set or not. LD can then make sure layoutreturn is always sent rather than being omitted. The difference against NFS_LAYOUT_RETURN is that NFS_LAYOUT_RETURN_BEFORE_CLOSE does not block usage of the layout so LD can set it and expect generic layer to try pnfs path at the same time. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: allow async version layoutreturnPeng Tao3-8/+16
Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: add range to layoutreturn argsPeng Tao2-4/+6
So that callers can specify which range to return. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03pnfs: allow LD to ask to resend read through pnfsPeng Tao2-1/+16
If current IO cannot be completed due to some transient errors, LD may want to ask generic layer to resend the request through pnfs again. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs: add nfs_pgio_current_mirror helperPeng Tao4-14/+24
Let it return current nfs_pgio_mirror in use depending on pg_mirror_count. For read, we always use pg_mirrors[0], so this effectively gives us freedom to use pg_mirror_idx to track the actual mirror to read from through out the IO stack. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs: only reset desc->pg_mirror_idx when mirroring is supportedPeng Tao2-4/+11
so that we don't reset desc->pg_mirror_idx for read unnecessarily. Remove WARN_ON_ONCE from __nfs_pageio_add_request to allow LD to set pg_mirror_idx for read where pg_mirror_count is always 1. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: add a debug warning if we destroy an unempty layoutPeng Tao1-0/+2
So that we can detect the case if some layout segments are still pinned which is surely a bug that we need to fix. Signed-off-by: Peng Tao <[email protected]>
2015-02-03pnfs: fail comparison when bucket verifier not setWeston Andros Adamson1-1/+5
This skips the WARN_ON_ONCE, but doesnt change behavior (the memcmp would fail). Signed-off-by: Weston Andros Adamson <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs: mirroring support for direct ioWeston Andros Adamson1-14/+57
The current mirroring code only notices short writes to the first mirror. This patch keeps per-mirror byte counts and only considers a byte to be written once all mirrors report so. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03nfs: add mirroring support to pgio layerWeston Andros Adamson7-64/+293
This patch adds mirrored write support to the pgio layer. The default is to use one mirror, but pgio callers may define callbacks to change this to any value up to the (arbitrarily selected) limit of 16. The basic idea is to break out members of nfs_pageio_descriptor that cannot be shared between mirrored DSes and put them in a new structure. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03pnfs: pass ds_commit_idx through the commit pathWeston Andros Adamson6-17/+24
Pass ds_commit_idx through the nfs commit path. It's used to select the commit bucket when using pnfs and is ignored when not using pnfs. Several functions had to be changed: nfs_retry_commit, nfs_mark_request_commit, pnfs_mark_request_commit and the pnfs layout driver .mark_request_commit functions. Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs: rename pgio header ds_idx to ds_commit_idxWeston Andros Adamson2-10/+8
'ds_commit_idx' is a better name - it is used to select the right commit bucket for pnfs. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03nfs: handle overlapping reqs in lock_and_joinWeston Andros Adamson1-6/+11
This is needed for mirrored DS support, where multuple requests cover the same range. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03pnfs: release lseg in pnfs_generic_pg_cleanupWeston Andros Adamson5-18/+21
This is needed to support mirrored writes - the first write can't just trash the lseg, we need to keep it around until all mirrors have written. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03nfs: introduce pg_cleanup op for pgio descriptorsWeston Andros Adamson1-1/+4
Add a new operation to nfs_pageio_ops that is called on nfs_pageio_complete. Signed-off-by: Weston Andros Adamson <[email protected]>
2015-02-03nfs/filelayout: use pnfs_error_mark_layout_for_returnPeng Tao2-11/+1
Instead of calling layoutreturn directly, call pnfs_error_mark_layout_for_return to mark layouts for return and let generic code return layout when layout segments are freed. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]> Conflicts: fs/nfs/filelayout/filelayout.c
2015-02-03nfs41: clear NFS_LAYOUT_RETURN if layoutreturn is sent or failed to sendPeng Tao2-0/+6
So that pnfs path is not disabled for ever. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: send layoutreturn in last put_lsegPeng Tao1-1/+37
If current lseg is the last lseg marked with NFS_LSEG_LAYOUTRETURN, send layoutreturn. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: don't use a layout if it is marked for returningPeng Tao3-5/+20
And if we are to return the same type of layouts, don't bother sending more layoutgets. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: add a helper to mark layout for returnPeng Tao2-0/+59
It marks all matching layout segments as NFS_LSEG_LAYOUTRETURN, which is an indicator for pnfs_put_lseg() to send layoutreturn, and also prevents pnfs_update_layout() from using the returning segments. Once it is set, it never gets cleared. It also sets proper io failure bit so that pnfs path can be retried after PNFS_LAYOUTGET_RETRY_TIMEOUT second. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: make a helper function to send layoutreturnPeng Tao1-20/+33
It allows to specify different iomode to return. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: pass iomode through layoutreturn argsPeng Tao2-1/+2
So that it is possible to return a specific iomode layouts. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs: save server READ/WRITE/COMMIT statusPeng Tao3-3/+13
Flexfiles layout would want to use them to report DS IO status. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: serialize first layoutget of a filePeng Tao2-4/+32
Per RFC 5661 Errata 3208: | A client MAY always forget its layout state and associated | layout stateid at any time (See also section 12.5.5.1). | In such case, the client MUST use a non-layout stateid for the next | LAYOUTGET operation. This will signal the server that the client has | no more layouts on the file and its respective layout state can be | released before issuing a new layout in response to LAYOUTGET. In order to make such a signal unique to server, client needs to serialize all layoutgets using non-layout stateid. We implement this by serializing layoutgets when client has no layout segments at hand. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs41: close a small race window when adding new layout to global listPeng Tao1-5/+3
Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs/flexclient: export pnfs_layoutcommit_inodePeng Tao1-0/+1
flexfiles needs to start layoutcommit when necessary Signed-off-by: Peng Tao <[email protected]>
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 <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2015-02-03NFSv4.1/NFSv3: Add pNFS callbacks for nfs3_(read|write|commit)_done()Trond Myklebust1-0/+9
Enable pNFS callbacks to allow flex files to work correctly with a NFSv3-enabled data server. Signed-off-by: Trond Myklebust <[email protected]>
2015-02-03nfs: allow to specify cred in nfs_initiate_pgioPeng Tao3-11/+14
so that flexfile layout client can pass in DS credential instead of using user cred, which will be done in the next patch. Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
2015-02-03nfs4: export nfs4_sequence_donePeng Tao2-4/+7
Signed-off-by: Peng Tao <[email protected]> Signed-off-by: Tom Haynes <[email protected]>
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