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2019-04-23Merge tag 'nfsd-5.1-1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-0/+3
Pull nfsd bugfixes from Bruce Fields: "Fix miscellaneous nfsd bugs, in NFSv4.1 callbacks, NFSv4.1 lock-notification callbacks, NFSv3 readdir encoding, and the cache/upcall code" * tag 'nfsd-5.1-1' of git://linux-nfs.org/~bfields/linux: nfsd: wake blocked file lock waiters before sending callback nfsd: wake waiters blocked on file_lock before deleting it nfsd: Don't release the callback slot unless it was actually held nfsd/nfsd3_proc_readdir: fix buffer count and page pointers sunrpc: don't mark uninitialised items as VALID.
2019-04-17SUNRPC: Ignore queue transmission errors on successful transmissionTrond Myklebust1-2/+5
If a request transmission fails due to write space or slot unavailability errors, but the queued task then gets transmitted before it has time to process the error in call_transmit_status() or call_bc_transmit_status(), we need to suppress the transmission error code to prevent it from leaking out of the RPC layer. Reported-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com> Tested-by: Chuck Lever <chuck.lever@oracle.com>
2019-04-11Revert "SUNRPC: Micro-optimise when the task is known not to be sleeping"Trond Myklebust1-37/+8
This reverts commit 009a82f6437490c262584d65a14094a818bcb747. The ability to optimise here relies on compiler being able to optimise away tail calls to avoid stack overflows. Unfortunately, we are seeing reports of problems, so let's just revert. Reported-by: Daniel Mack <daniel@zonque.org> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-04-11xprtrdma: Fix helper that drains the transportChuck Lever1-1/+1
We want to drain only the RQ first. Otherwise the transport can deadlock on ->close if there are outstanding Send completions. Fixes: 6d2d0ee27c7a ("xprtrdma: Replace rpcrdma_receive_wq ... ") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: stable@vger.kernel.org # v5.0+ Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-04-05sunrpc: don't mark uninitialised items as VALID.NeilBrown1-0/+3
A recent commit added a call to cache_fresh_locked() when an expired item was found. The call sets the CACHE_VALID flag, so it is important that the item actually is valid. There are two ways it could be valid: 1/ If ->update has been called to fill in relevant content 2/ if CACHE_NEGATIVE is set, to say that content doesn't exist. An expired item that is waiting for an update will be neither. Setting CACHE_VALID will mean that a subsequent call to cache_put() will be likely to dereference uninitialised pointers. So we must make sure the item is valid, and we already have code to do that in try_to_negate_entry(). This takes the hash lock and so cannot be used directly, so take out the two lines that we need and use them. Now cache_fresh_locked() is certain to be called only on a valid item. Cc: stable@kernel.org # 2.6.35 Fixes: 4ecd55ea0742 ("sunrpc: fix cache_head leak due to queued request") Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-03-26SUNRPC: fix uninitialized variable warningAlakesh Haloi1-2/+2
Avoid following compiler warning on uninitialized variable net/sunrpc/xprtsock.c: In function ‘xs_read_stream_request.constprop’: net/sunrpc/xprtsock.c:525:10: warning: ‘read’ may be used uninitialized in this function [-Wmaybe-uninitialized] return read; ^~~~ net/sunrpc/xprtsock.c:529:23: warning: ‘ret’ may be used uninitialized in this function [-Wmaybe-uninitialized] return ret < 0 ? ret : read; ~~~~~~~~~~~~~~^~~~~~ Signed-off-by: Alakesh Haloi <alakesh.haloi@gmail.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-23SUNRPC: Don't let RPC_SOFTCONN tasks time out if the transport is connectedTrond Myklebust1-1/+11
If the transport is still connected, then we do want to allow RPC_SOFTCONN tasks to retry. They should time out if and only if the connection is broken. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-16Merge tag 'nfs-for-5.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds3-20/+16
Pull NFS client bugfixes from Trond Myklebust: "Highlights include: Bugfixes: - Fix an Oops in SUNRPC back channel tracepoints - Fix a SUNRPC client regression when handling oversized replies - Fix the minimal size for SUNRPC reply buffer allocation - rpc_decode_header() must always return a non-zero value on error - Fix a typo in pnfs_update_layout() Cleanup: - Remove redundant check for the reply length in call_decode()" * tag 'nfs-for-5.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: SUNRPC: Remove redundant check for the reply length in call_decode() SUNRPC: Handle the SYSTEM_ERR rpc error SUNRPC: rpc_decode_header() must always return a non-zero value on error SUNRPC: Use the ENOTCONN error on socket disconnect SUNRPC: Fix the minimal size for reply buffer allocation SUNRPC: Fix a client regression when handling oversized replies pNFS: Fix a typo in pnfs_update_layout fix null pointer deref in tracepoints in back channel
2019-03-15SUNRPC: Remove redundant check for the reply length in call_decode()Trond Myklebust1-4/+0
Now that we're using the xdr_stream functions to decode the header, the test for the minimum reply length is redundant. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-15SUNRPC: Handle the SYSTEM_ERR rpc errorTrond Myklebust1-0/+1
Handle the SYSTEM_ERR rpc error by retrying the RPC call as if it were a garbage argument. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-15SUNRPC: rpc_decode_header() must always return a non-zero value on errorTrond Myklebust1-13/+7
Ensure that when the "garbage args" case falls through, we do set an error of EIO. Fixes: a0584ee9aed8 ("SUNRPC: Use struct xdr_stream when decoding...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-15SUNRPC: Use the ENOTCONN error on socket disconnectTrond Myklebust1-1/+1
When the socket is closed, we currently send an EAGAIN error to all pending requests in order to ask them to retransmit. Use ENOTCONN instead, to ensure that they try to reconnect before attempting to transmit. This also helps SOFTCONN tasks to behave correctly in this situation. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-15SUNRPC: Fix the minimal size for reply buffer allocationTrond Myklebust1-1/+6
We must at minimum allocate enough memory to be able to see any auth errors in the reply from the server. Fixes: 2c94b8eca1a26 ("SUNRPC: Use au_rslack when computing reply...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-15SUNRPC: Fix a client regression when handling oversized repliesTrond Myklebust1-1/+1
If the server sends a reply that is larger than the pre-allocated buffer, then the current code may fail to register how much of the stream that it has finished reading. This again can lead to hangs. Fixes: e92053a52e68 ("SUNRPC: Handle zero length fragments correctly") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-12Merge tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linuxLinus Torvalds6-47/+39
Pull NFS server updates from Bruce Fields: "Miscellaneous NFS server fixes. Probably the most visible bug is one that could artificially limit NFSv4.1 performance by limiting the number of oustanding rpcs from a single client. Neil Brown also gets a special mention for fixing a 14.5-year-old memory-corruption bug in the encoding of NFSv3 readdir responses" * tag 'nfsd-5.1' of git://linux-nfs.org/~bfields/linux: nfsd: allow nfsv3 readdir request to be larger. nfsd: fix wrong check in write_v4_end_grace() nfsd: fix memory corruption caused by readdir nfsd: fix performance-limiting session calculation svcrpc: fix UDP on servers with lots of threads svcrdma: Remove syslog warnings in work completion handlers svcrdma: Squelch compiler warning when SUNRPC_DEBUG is disabled svcrdma: Use struct_size() in kmalloc() svcrpc: fix unlikely races preventing queueing of sockets svcrpc: svc_xprt_has_something_to_do seems a little long SUNRPC: Don't allow compiler optimisation of svc_xprt_release_slot() nfsd: fix an IS_ERR() vs NULL check
2019-03-10SUNRPC: Take the transport send lock before binding+connectingTrond Myklebust1-1/+8
Before trying to bind a port, ensure we grab the send lock to ensure that we don't change the port while another task is busy transmitting requests. The connect code already takes the send lock in xprt_connect(), but it is harmless to take it before that. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-10SUNRPC: Micro-optimise when the task is known not to be sleepingTrond Myklebust1-34/+65
In cases where we know the task is not sleeping, try to optimise away the indirect call to task->tk_action() by replacing it with a direct call. Only change tail calls, to allow gcc to perform tail call elimination. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-10SUNRPC: Check whether the task was transmitted before rebind/reconnectTrond Myklebust1-4/+40
Before initiating transport actions that require putting the task to sleep, such as rebinding or reconnecting, we should check whether or not the task was already transmitted. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-09SUNRPC: Remove redundant calls to RPC_IS_QUEUED()Trond Myklebust2-5/+1
The RPC task wakeup calls all check for RPC_IS_QUEUED() before taking any locks. In addition, rpc_exit() already calls rpc_wake_up_queued_task(). Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-09SUNRPC: Clean upTrond Myklebust1-33/+14
Replace remaining callers of call_timeout() with rpc_check_timeout(). Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-07SUNRPC: Respect RPC call timeouts when retrying transmissionTrond Myklebust1-18/+24
Fix a regression where soft and softconn requests are not timing out as expected. Fixes: 89f90fe1ad8b ("SUNRPC: Allow calls to xprt_transmit() to drain...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-07SUNRPC: Fix up RPC back channel transmissionTrond Myklebust1-28/+33
Now that transmissions happen through a queue, we require the RPC tasks to handle error conditions that may have been set while they were sleeping. The back channel does not currently do this, but assumes that any error condition happens during its own call to xprt_transmit(). The solution is to ensure that the back channel splits out the error handling just like the forward channel does. Fixes: 89f90fe1ad8b ("SUNRPC: Allow calls to xprt_transmit() to drain...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-07SUNRPC: Prevent thundering herd when the socket is not connectedTrond Myklebust1-4/+17
If the socket is not connected, then we want to initiate a reconnect rather that trying to transmit requests. If there is a large number of requests queued and waiting for the lock in call_transmit(), then it can take a while for one of the to loop back and retake the lock in call_connect. Fixes: 89f90fe1ad8b ("SUNRPC: Allow calls to xprt_transmit() to drain...") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-02SUNRPC: Allow dynamic allocation of back channel slotsTrond Myklebust1-16/+25
Now that the reads happen in a process context rather than a softirq, it is safe to allocate back channel slots using a reclaiming allocation. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-02SUNRPC: Convert remaining GFP_NOIO, and GFP_NOWAIT sites in sunrpcTrond Myklebust3-8/+5
Convert the remaining gfp_flags arguments in sunrpc to standard reclaiming allocations, now that we set memalloc_nofs_save() as appropriate. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-03-01NFSv4/flexfiles: Abort I/O early if the layout segment was invalidatedTrond Myklebust1-0/+7
If a layout segment gets invalidated while a pNFS I/O operation is queued for transmission, then we ideally want to abort immediately. This is particularly the case when there is a large number of I/O related RPCs queued in the RPC layer, and the layout segment gets invalidated due to an ENOSPC error, or an EACCES (because the client was fenced). We may end up forced to spam the MDS with a lot of otherwise unnecessary LAYOUTERRORs after that I/O fails. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-26SUNRPC: Fix an Oops in udp_poll()Trond Myklebust1-2/+19
udp_poll() checks the struct file for the O_NONBLOCK flag, so we must not call it with a NULL file pointer. Fixes: 0ffe86f48026 ("SUNRPC: Use poll() to fix up the socket requeue races") Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-25Merge tag 'nfs-rdma-for-5.1-1' of git://git.linux-nfs.org/projects/anna/linux-nfsTrond Myklebust27-847/+858
NFSoRDMA client updates for 5.1 New features: - Convert rpc auth layer to use xdr_streams - Config option to disable insecure enctypes - Reduce size of RPC receive buffers Bugfixes and cleanups: - Fix sparse warnings - Check inline size before providing a write chunk - Reduce the receive doorbell rate - Various tracepoint improvements [Trond: Fix up merge conflicts] Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-21svcrpc: fix UDP on servers with lots of threadsJ. Bruce Fields1-10/+10
James Pearson found that an NFS server stopped responding to UDP requests if started with more than 1017 threads. sv_max_mesg is about 2^20, so that is probably where the calculation performed by svc_sock_setbufsize(svsk->sk_sock, (serv->sv_nrthreads+3) * serv->sv_max_mesg, (serv->sv_nrthreads+3) * serv->sv_max_mesg); starts to overflow an int. Reported-by: James Pearson <jcpearson@gmail.com> Tested-by: James Pearson <jcpearson@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-02-20SUNRPC: Remove the redundant 'zerocopy' argument to xs_sendpages()Trond Myklebust1-12/+4
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Further cleanups of xs_sendpages()Trond Myklebust1-10/+1
Now that we send the pages using a struct msghdr, instead of using sendpage(), we no longer need to 'prime the socket' with an address for unconnected UDP messages. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Convert socket page send code to use iov_iter()Trond Myklebust2-36/+14
Simplify the page send code using iov_iter and bvecs. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Convert xs_send_kvec() to use iov_iter_kvec()Trond Myklebust1-15/+23
Prepare to the socket transmission code to use iov_iter. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Initiate a connection close on an ESHUTDOWN error in stream receiveTrond Myklebust1-1/+4
If the client stream receive code receives an ESHUTDOWN error either because the server closed the connection, or because it sent a callback which cannot be processed, then we should shut down the connection. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Don't suppress socket errors when a message read completesTrond Myklebust1-5/+2
If the message read completes, but the socket returned an error condition, we should ensure to propagate that error. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Handle zero length fragments correctlyTrond Myklebust1-14/+29
A zero length fragment is really a bug, but let's ensure we don't go nuts when one turns up. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Don't reset the stream record info when the receive worker is runningTrond Myklebust1-3/+9
To ensure that the receive worker has exclusive access to the stream record info, we must not reset the contents other than when holding the transport->recv_mutex. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: remove pointless test in unx_match()NeilBrown1-1/+1
As reported by Dan Carpenter, this test for acred->cred being set is inconsistent with the dereference of the pointer a few lines earlier. An 'auth_cred' *always* has ->cred set - every place that creates one initializes this field, often as the first thing done. So remove this test. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Ensure rq_bytes_sent is reset before request transmissionTrond Myklebust5-7/+0
When we resend a request, ensure that the 'rq_bytes_sent' is reset to zero. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Use poll() to fix up the socket requeue racesTrond Myklebust1-2/+24
Because we clear XPRT_SOCK_DATA_READY before reading, we can end up with a situation where new data arrives, causing xs_data_ready() to queue up a second receive worker job for the same socket, which then immediately gets stuck waiting on the transport receive mutex. The fix is to only clear XPRT_SOCK_DATA_READY once we're done reading, and then to use poll() to check if we might need to queue up a new job in order to deal with any new data. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-20SUNRPC: Set memalloc_nofs_save() on all rpciod/xprtiod jobsTrond Myklebust3-3/+17
Set memalloc_nofs_save() on all the rpciod/xprtiod jobs so that we ensure memory allocations for asynchronous rpc calls don't ever end up recursing back to the NFS layer for memory reclaim. Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2019-02-16Merge tag 'nfsd-5.0-2' of git://linux-nfs.org/~bfields/linuxLinus Torvalds1-11/+38
Pull more nfsd fixes from Bruce Fields: "Two small fixes, one for crashes using nfs/krb5 with older enctypes, one that could prevent clients from reclaiming state after a kernel upgrade" * tag 'nfsd-5.0-2' of git://linux-nfs.org/~bfields/linux: sunrpc: fix 4 more call sites that were using stack memory with a scatterlist Revert "nfsd4: return default lease period"
2019-02-16Merge tag 'nfs-for-5.0-4' of git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds2-2/+3
Pull more NFS client fixes from Anna Schumaker: "Three fixes this time. Nicolas's is for xprtrdma completion vector allocation on single-core systems. Greg's adds an error check when allocating a debugfs dentry. And Ben's is an additional fix for nfs_page_async_flush() to prevent pages from accidentally getting truncated. Summary: - Make sure Send CQ is allocated on an existing compvec - Properly check debugfs dentry before using it - Don't use page_file_mapping() after removing a page" * tag 'nfs-for-5.0-4' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFS: Don't use page_file_mapping after removing the page rpc: properly check debugfs dentry before using it xprtrdma: Make sure Send CQ is allocated on an existing compvec
2019-02-15sunrpc: fix 4 more call sites that were using stack memory with a scatterlistScott Mayhew1-11/+38
While trying to reproduce a reported kernel panic on arm64, I discovered that AUTH_GSS basically doesn't work at all with older enctypes on arm64 systems with CONFIG_VMAP_STACK enabled. It turns out there still a few places using stack memory with scatterlists, causing krb5_encrypt() and krb5_decrypt() to produce incorrect results (or a BUG if CONFIG_DEBUG_SG is enabled). Tested with cthon on v4.0/v4.1/v4.2 with krb5/krb5i/krb5p using des3-cbc-sha1 and arcfour-hmac-md5. Signed-off-by: Scott Mayhew <smayhew@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2019-02-14SUNRPC: Use au_rslack when computing reply buffer sizeChuck Lever1-3/+4
au_rslack is significantly smaller than (au_cslack << 2). Using that value results in smaller receive buffers. In some cases this eliminates an extra segment in Reply chunks (RPC/RDMA). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14SUNRPC: Add rpc_auth::au_ralign fieldChuck Lever4-6/+16
Currently rpc_inline_rcv_pages() uses au_rslack to estimate the size of the upper layer reply header. This is fine for auth flavors where au_verfsize == au_rslack. However, some auth flavors have more going on. krb5i for example has two more words after the verifier, and another blob following the RPC message. The calculation involving au_rslack pushes the upper layer reply header too far into the rcv_buf. au_rslack is still valuable: it's the amount of buffer space needed for the reply, and is used when allocating the reply buffer. We'll keep that. But, add a new field that can be used to properly estimate the location of the upper layer header in each RPC reply, based on the auth flavor in use. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14SUNRPC: Make AUTH_SYS and AUTH_NULL set au_verfsizeChuck Lever3-1/+6
au_verfsize will be needed for a non-flavor-specific computation in a subsequent patch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14NFS: Account for XDR pad of buf->pagesChuck Lever2-1/+7
Certain NFS results (eg. READLINK) might expect a data payload that is not an exact multiple of 4 bytes. In this case, XDR encoding is required to pad that payload so its length on the wire is a multiple of 4 bytes. The constants that define the maximum size of each NFS result do not appear to account for this extra word. In each case where the data payload is to be received into pages: - 1 word is added to the size of the receive buffer allocated by call_allocate - rpc_inline_rcv_pages subtracts 1 word from @hdrsize so that the extra buffer space falls into the rcv_buf's tail iovec - If buf->pagelen is word-aligned, an XDR pad is not needed and is thus removed from the tail Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14SUNRPC: Introduce rpc_prepare_reply_pages()Chuck Lever2-0/+28
prepare_reply_buffer() and its NFSv4 equivalents expose the details of the RPC header and the auth slack values to upper layer consumers, creating a layering violation, and duplicating code. Remedy these issues by adding a new RPC client API that hides those details from upper layers in a common helper function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-02-14SUNRPC: Add SPDX IDs to some net/sunrpc/auth_gss/ filesChuck Lever8-136/+9
Files under net/sunrpc/auth_gss/ do not yet have SPDX ID tags. This directory is somewhat complicated because most of these files have license boilerplate that is not strictly GPL 2.0. In this patch I add ID tags where there is an obvious match. The less recognizable licenses are still under research. For reference, SPDX IDs added in this patch correspond to the following license text: GPL-2.0 https://spdx.org/licenses/GPL-2.0.html GPL-2.0+ https://spdx.org/licenses/GPL-2.0+.html BSD-3-Clause https://spdx.org/licenses/BSD-3-Clause.html Cc: Simo Sorce <simo@redhat.com> Cc: Kate Stewart <kstewart@linuxfoundation.org> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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