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2007-10-09SUNRPC: Fix generation of universal addresses forChuck Lever1-11/+13
Fix some problems with rpcbind v3 and v4 queries from the in-kernel rpcbind client: 1. The r_addr argument must be a full universal address, not just an IP address, and 2. The universal address in r_addr is the address of the remote rpcbind server, not the RPC service being requested This addresses bugzilla.kernel.org report 8891 for 2.6.23-rc and greater. In addition, if the rpcbind client is unable to start the rpcbind request, make sure not to leak the xprt. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2007-10-09SUNRPC: Add support for formatted universal addressesChuck Lever1-0/+18
"Universal addresses" are a string representation of an IP address and port. They are described fully in RFC 3530, section 2.2. Add support for generating them in the RPC client's socket transport module. Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2007-10-09SUNRPC: Split xs_reclassify_socket into an IPv4 and IPv6 versionChuck Lever1-18/+20
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add a helper for extracting the address using the correct typeChuck Lever1-6/+20
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add IPv6 address support to net/sunrpc/xprtsock.cChuck Lever1-10/+47
Finalize support for setting up RPC client transports to remote RPC services addressed via IPv6. Based on work done by Gilles Quillard at Bull Open Source. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: create connect workers for IPv6Chuck Lever1-0/+101
Clone separate connect worker functions for connecting AF_INET6 sockets. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename IPv4 connect workersChuck Lever1-6/+6
Prepare for introduction of IPv6 versions of same. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Refactor a part of socket connect logic into a helper functionChuck Lever1-59/+72
Finishing a socket connect is the same for IPv4 and IPv6, so split it out into a helper. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: create an IPv6-savvy mechanism for binding to a reserved portChuck Lever1-0/+33
Clone xs_bindresvport into two functions, one that can handle IPv4 addresses, and one that can handle IPv6 addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename xs_bind() to prepare for IPv6-specific bind methodChuck Lever1-5/+6
Prepare for introduction of IPv6-specific socket bind function. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Introduce support for setting the port number in IPv6 addressesChuck Lever1-2/+11
We could clone xs_set_port, but this is easier overall. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: add support for IPv6 to the kernel's rpcbind clientChuck Lever1-6/+45
Prepare for adding IPv6 support to the RPC client by adding IPv6 capabilities to rpcbind. Note that this is support on the query side only; registering IPv6 addresses with the local portmapper will come later. Note we have to take care not to fall back to using version 2 of the rpcbind protocol if we're dealing with IPv6 address. Version 2 doesn't support IPv6 at all. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: add a function to format IPv6 addressesChuck Lever1-0/+52
Clone xs_format_ipv4_peer_addresses into an IPv6 version. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Rename xs_format_peer_addressesChuck Lever1-3/+3
Prepare to add an IPv6 version of xs_format_peer_addresses by renaming it to xs_format_ipv4_peer_addresses. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Add hex-formatted address support to rpc_peeraddr2str()Chuck Lever1-0/+14
Add support for the NFS client's need to export volume information with IP addresses formatted in hex instead of decimal. This isn't used yet, but subsequent patches (not in this series) will change the NFS client to use this functionality. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Free address buffers in a loopChuck Lever1-7/+12
Use more generic logic to free buffers holding formatted addresses. This makes it less likely a bug will be introduced when adding additional buffer types in xs_format_peer_address(). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Use standard macros for printing IP addressesChuck Lever1-2/+2
include/linux/kernel.h gives us some nice macros for formatting IP addresses. Use them. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Fix a signed v. unsigned comparison in net/sunrpc/xprtsock.cChuck Lever1-1/+2
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Fix a signed v. unsigned comparison in rpcbind's XDR routinesChuck Lever1-2/+3
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-10-09SUNRPC: Convert rpc_pipefs to use the generic filesystem notification hooksTrond Myklebust1-3/+4
This will allow rpc.gssd to use inotify instead of dnotify in order to locate new rpc upcall pipes. This also requires the exporting of __audit_inode_child(), which is used by fsnotify_create() and fsnotify_mkdir(). Ccing David Woodhouse. Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-09-20rpc: fix garbage in printk in svc_tcp_accept()Wolfgang Walter1-1/+2
we upgraded the kernel of a nfs-server from 2.6.17.11 to 2.6.22.6. Since then we get the message lockd: too many open TCP sockets, consider increasing the number of nfsd threads lockd: last TCP connect from ^\\236^\É^D These random characters in the second line are caused by a bug in svc_tcp_accept. (Note: there are two previous __svc_print_addr(sin, buf, sizeof(buf)) calls in this function, either of which would initialize buf correctly; but both are inside "if"'s and are not necessarily executed. This is less obvious in the second case, which is inside a dprintk(), which is a macro which expands to an if statement.) Signed-off-by: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-14Correctly close old nfsd/lockd sockets.Neil Brown1-1/+1
Commit aaf68cfbf2241d24d46583423f6bff5c47e088b3 added a bias to sk_inuse, so this test for an unused socket now fails. So no sockets get closed because they are old (they might get closed if the client closed them). This bug has existed since 2.6.21-rc1. Thanks to Wolfgang Walter for finding and reporting the bug. Cc: Wolfgang Walter <wolfgang.walter@studentenwerk.mhn.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-13[SUNRPC]: Clean up duplicate includes in net/sunrpc/Jesper Juhl1-1/+0
This patch cleans up duplicate includes in net/sunrpc/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-07SUNRPC: Replace flush_workqueue() with cancel_work_sync() and friendsTrond Myklebust2-4/+2
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07SUNRPC: Don't call gss_delete_sec_context() from an rcu contextTrond Myklebust1-3/+6
Doing so may not be safe... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-08-07SUNRPC: Fix a race in rpciod_down()Trond Myklebust1-34/+23
The commit 4ada539ed77c7a2bbcb75cafbbd7bd8d2b9bef7b lead to the unpleasant possibility of an asynchronous rpc_task being required to call rpciod_down() when it is complete. This again means that the rpciod workqueue may get to call destroy_workqueue on itself -> hang... Change rpciod_up/rpciod_down to just get/put the module, and then create/destroy the workqueues on module load/unload. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-26net/* misc endianness annotationsAl Viro1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24nfsd: fix possible oops on re-insertion of rpcsec_gss modulesJ. Bruce Fields1-4/+5
The handling of the re-registration case is wrong here; the "test" that was returned from auth_domain_lookup will not be used again, so that reference should be put. And auth_domain_lookup never did anything with "new" in this case, so we should just clean it up ourself. Thanks to Akinobu Mita for bug report, analysis, and testing. Cc: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt2-3/+3
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-19SUNRPC: move bkl locking and xdr proc invocation into a common helperJ. Bruce Fields2-27/+7
Since every invocation of xdr encode or decode functions takes the BKL now, there's a lot of redundant lock_kernel/unlock_kernel pairs that we can pull out into a common function. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-19Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds1-1/+1
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits) [TG3]: Fix msi issue with kexec/kdump. [NET] XFRM: Fix whitespace errors. [NET] TIPC: Fix whitespace errors. [NET] SUNRPC: Fix whitespace errors. [NET] SCTP: Fix whitespace errors. [NET] RXRPC: Fix whitespace errors. [NET] ROSE: Fix whitespace errors. [NET] RFKILL: Fix whitespace errors. [NET] PACKET: Fix whitespace errors. [NET] NETROM: Fix whitespace errors. [NET] NETFILTER: Fix whitespace errors. [NET] IPV4: Fix whitespace errors. [NET] DCCP: Fix whitespace errors. [NET] CORE: Fix whitespace errors. [NET] BLUETOOTH: Fix whitespace errors. [NET] AX25: Fix whitespace errors. [PATCH] mac80211: remove rtnl locking in ieee80211_sta.c [PATCH] mac80211: fix GCC warning on 64bit platforms [GENETLINK]: Dynamic multicast groups. [NETLIKN]: Allow removing multicast groups. ...
2007-07-19sunrpc: use vfs_path_lookupJosef 'Jeff' Sipek1-9/+7
use vfs_path_lookup instead of open-coding the necessary functionality. Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Neil Brown <neilb@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19[NET] SUNRPC: Fix whitespace errors.YOSHIFUJI Hideaki1-1/+1
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
2007-07-17knfsd: nfsd4: secinfo handling without secinfo= optionJ. Bruce Fields1-0/+9
We could return some sort of error in the case where someone asks for secinfo on an export without the secinfo= option set--that'd be no worse than what we've been doing. But it's not really correct. So, hack up an approximate secinfo response in that case--it may not be complete, but it'll tell the client at least one acceptable security flavor. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17knfsd: rpc: add gss krb5 and spkm3 oid valuesUsha Ketineni2-0/+2
Adds oid values to the gss_api mechanism structures. On the NFSV4 server side, these are required as part of the security triple (oid,qop,service) information being sent in the response of the SECINFO operation. Signed-off-by: Usha Ketineni <uketinen@us.ibm.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17knfsd: nfsd: set rq_client to ip-address-determined-domainJ. Bruce Fields2-4/+21
We want it to be possible for users to restrict exports both by IP address and by pseudoflavor. The pseudoflavor information has previously been passed using special auth_domains stored in the rq_client field. After the preceding patch that stored the pseudoflavor in rq_pflavor, that's now superfluous; so now we use rq_client for the ip information, as auth_null and auth_unix do. However, we keep around the special auth_domain in the rq_gssclient field for backwards compatibility purposes, so we can still do upcalls using the old "gss/pseudoflavor" auth_domain if upcalls using the unix domain to give us an appropriate export. This allows us to continue supporting old mountd. In fact, for this first patch, we always use the "gss/pseudoflavor" auth_domain (and only it) if it is available; thus rq_client is ignored in the auth_gss case, and this patch on its own makes no change in behavior; that will be left to later patches. Note on idmap: I'm almost tempted to just replace the auth_domain in the idmap upcall by a dummy value--no version of idmapd has ever used it, and it's unlikely anyone really wants to perform idmapping differently depending on the where the client is (they may want to perform *credential* mapping differently, but that's a different matter--the idmapper just handles id's used in getattr and setattr). But I'm updating the idmapd code anyway, just out of general backwards-compatibility paranoia. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17knfsd: nfsd4: store pseudoflavor in requestAndy Adamson3-0/+19
Add a new field to the svc_rqst structure to record the pseudoflavor that the request was made with. For now we record the pseudoflavor but don't use it for anything. Signed-off-by: Andy Adamson <andros@citi.umich.edu> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17mm: clean up and kernelify shrinker registrationRusty Russell1-5/+6
I can never remember what the function to register to receive VM pressure is called. I have to trace down from __alloc_pages() to find it. It's called "set_shrinker()", and it needs Your Help. 1) Don't hide struct shrinker. It contains no magic. 2) Don't allocate "struct shrinker". It's not helpful. 3) Call them "register_shrinker" and "unregister_shrinker". 4) Call the function "shrink" not "shrinker". 5) Reduce the 17 lines of waffly comments to 13, but document it properly. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: David Chinner <dgc@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16authgss build fixAndrew Morton1-0/+1
Recent breakage.. net/sunrpc/auth_gss/auth_gss.c:1002: warning: implicit declaration of function 'lock_kernel' net/sunrpc/auth_gss/auth_gss.c:1004: warning: implicit declaration of function 'unlock_kernel' Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-13Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds14-660/+980
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (122 commits) sunrpc: drop BKL around wrap and unwrap NFSv4: Make sure unlock is really an unlock when cancelling a lock NLM: fix source address of callback to client SUNRPC client: add interface for binding to a local address SUNRPC server: record the destination address of a request SUNRPC: cleanup transport creation argument passing NFSv4: Make the NFS state model work with the nosharedcache mount option NFS: Error when mounting the same filesystem with different options NFS: Add the mount option "nosharecache" NFS: Add support for mounting NFSv4 file systems with string options NFS: Add final pieces to support in-kernel mount option parsing NFS: Introduce generic mount client API NFS: Add enums and match tables for mount option parsing NFS: Improve debugging output in NFS in-kernel mount client NFS: Clean up in-kernel NFS mount NFS: Remake nfsroot_mount as a permanent part of NFS client SUNRPC: Add a convenient default for the hostname when calling rpc_create() SUNRPC: Rename rpcb_getport to be consistent with new rpcb_getport_sync name SUNRPC: Rename rpcb_getport_external routine SUNRPC: Allow rpcbind requests to be interrupted by a signal. ...
2007-07-10[NET]: Make all initialized struct seq_operations const.Philippe De Muyter1-1/+1
Make all initialized struct seq_operations in net/ const Signed-off-by: Philippe De Muyter <phdm@macqel.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-07-10sunrpc: drop BKL around wrap and unwrapJ. Bruce Fields3-6/+21
We don't need the BKL when wrapping and unwrapping; and experiments by Avishay Traeger have found that permitting multiple encryption and decryption operations to proceed in parallel can provide significant performance improvements. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Avishay Traeger <atraeger@cs.sunysb.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC client: add interface for binding to a local addressFrank van Maarseveen2-8/+17
In addition to binding to a local privileged port the NFS client should allow binding to a specific local address. This is used by the server for callbacks. The patch adds the necessary interface. Signed-off-by: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC server: record the destination address of a requestFrank van Maarseveen1-0/+20
Save the destination address of an incoming request over TCP like is done already for UDP. It is necessary later for callbacks by the server. Signed-off-by: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: cleanup transport creation argument passingFrank van Maarseveen3-31/+29
Cleanup argument passing to functions for creating an RPC transport. Signed-off-by: Frank van Maarseveen <frankvm@frankvm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Add a convenient default for the hostname when calling rpc_create()Chuck Lever1-0/+13
A couple of callers just use a stringified IP address for the rpc client's hostname. Move the logic for constructing this into rpc_create(), so it can be shared. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Rename rpcb_getport to be consistent with new rpcb_getport_sync nameChuck Lever2-20/+21
Clean up, for consistency. Rename rpcb_getport as rpcb_getport_async, to match the naming scheme of rpcb_getport_sync. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Rename rpcb_getport_external routineChuck Lever1-10/+11
In preparation for handling NFS mount option parsing in the kernel, rename rpcb_getport_external as rpcb_get_port_sync, and make it available always (instead of only when CONFIG_ROOT_NFS is enabled). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Allow rpcbind requests to be interrupted by a signal.Chuck Lever1-1/+2
This allows NFS mount requests and RPC re-binding to be interruptible if the server isn't responding. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Suppress some noisy and unnecessary printk() calls in call_verify()Trond Myklebust1-9/+15
Convert them into dprintk() calls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>