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2009-06-03sctp: fix a typo in net/sctp/sm_statetable.cWei Yongjun
Just fix a typo in net/sctp/sm_statetable.c. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2009-06-03sctp: fix the error code when ASCONF is received with invalid addressWei Yongjun
Use Unresolvable Address error cause instead of Invalid Mandatory Parameter error cause when process ASCONF chunk with invalid address since address parameters are not mandatory in the ASCONF chunk. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2009-06-03sctp: fix report unrecognized parameter in ACSONF-ACKWei Yongjun
RFC5061 Section 5.2. Upon Reception of an ASCONF Chunk V2) In processing the chunk, the receiver should build a response message with the appropriate error TLVs, as specified in the Parameter type bits, for any ASCONF Parameter it does not understand. To indicate an unrecognized parameter, Cause Type 8 should be used as defined in the ERROR in Section 3.3.10.8, [RFC4960]. The endpoint may also use the response to carry rejections for other reasons, such as resource shortages, etc., using the Error Cause TLV and an appropriate error condition. So we should indicate an unrecognized parameter with error SCTP_ERROR_UNKNOWN_PARAM in ACSONF-ACK chunk, not SCTP_ERROR_INV_PARAM. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
2009-06-03net: skb->dst accessorsEric Dumazet
Define three accessors to get/set dst attached to a skb struct dst_entry *skb_dst(const struct sk_buff *skb) void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst) void skb_dst_drop(struct sk_buff *skb) This one should replace occurrences of : dst_release(skb->dst) skb->dst = NULL; Delete skb->dst field Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03net: skb->rtable accessorEric Dumazet
Define skb_rtable(const struct sk_buff *skb) accessor to get rtable from skb Delete skb->rtable field Setting rtable is not allowed, just set dst instead as rtable is an alias. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-28sctp: add feature bit for SCTP offload in hardwareJesse Brandeburg
this is the sctp code to enable hardware crc32c offload for adapters that support it. Originally by: Vlad Yasevich <vladislav.yasevich@hp.com> modified by Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-31proc 2/2: remove struct proc_dir_entry::ownerAlexey Dobriyan
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-03-21sctp: Clean up TEST_FRAME hacks.Vlad Yasevich
Remove 2 TEST_FRAME hacks that are no longer needed. These allowed sctp regression tests to compile before, but are no longer needed. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-20Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/virtio_net.c
2009-03-18net: fix sctp breakageAl Viro
broken by commit 5e739d1752aca4e8f3e794d431503bfca3162df4; AFAICS should be -stable fodder as well... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Aced-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13sctp: add Adaptation Layer Indication parameter only when it's setmalc
RFC5061 states: Each adaptation layer that is defined that wishes to use this parameter MUST specify an adaptation code point in an appropriate RFC defining its use and meaning. If the user has not set one - assume they don't want to sent the param with a zero Adaptation Code Point. Rationale - Currently the IANA defines zero as reserved - and 1 as the only valid value - so we consider zero to be unset - to save adding a boolean to the socket structure. Including this parameter unconditionally causes endpoints that do not understand it to report errors unnecessarily. Signed-off-by: Malcolm Lashley <mlashley@gmail.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13sctp: fix to send FORWARD-TSN chunk only if peer has such capableWei Yongjun
RFC3758 Section 3.3.1. Sending Forward-TSN-Supported param in INIT Note that if the endpoint chooses NOT to include the parameter, then at no time during the life of the association can it send or process a FORWARD TSN. If peer does not support PR-SCTP capable, don't send FORWARD-TSN chunk to peer. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13sctp: fix to indicate ASCONF support in INIT-ACK only if peer has such capableWei Yongjun
This patch fix to indicate ASCONF support in INIT-ACK only if peer has such capable. This patch also fix to calc the chunk size if peer has no FWD-TSN capable. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-13sctp: simplify sctp listening codeVlad Yasevich
sctp_inet_listen() call is split between UDP and TCP style. Looking at the code, the two functions are almost the same and can be merged into a single helper. This also fixes a bug that was fixed in the UDP function, but missed in the TCP function. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-05Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tokenring/tmspci.c drivers/net/ucc_geth_mii.c
2009-03-04SCTP: change sctp_ctl_sock_init() to try IPv4 if IPv6 failsBrian Haley
Change sctp_ctl_sock_init() to try IPv4 if IPv6 socket registration fails. Required if the IPv6 module is loaded with "disable=1", else SCTP will fail to load. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: Fix broken RTO-doubling for data retransmitsVlad Yasevich
Commit faee47cdbfe8d74a1573c2f81ea6dbb08d735be6 (sctp: Fix the RTO-doubling on idle-link heartbeats) broke the RTO doubling for data retransmits. If the heartbeat was sent before the data T3-rtx time, the the RTO will not double upon the T3-rtx expiration. Distingish between the operations by passing an argument to the function. Additionally, Wei Youngjun pointed out that our treatment of requested HEARTBEATS and timer HEARTBEATS is the same wrt resetting congestion window. That needs to be separated, since user requested HEARTBEATS should not treat the link as idle. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: use time_before or time_after for comparing jiffiesWei Yongjun
The functions time_before or time_after are more robust for comparing jiffies against other values. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: fix the length check in sctp_getsockopt_maxburst()Wei Yongjun
The code in sctp_getsockopt_maxburst() doesn't allow len to be larger then struct sctp_assoc_value, which is a common case where app writers just pass down the sizeof(buf) or something similar. This patch fix the problem. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: remove dup code in net/sctp/socket.cWei Yongjun
Remove dup check of "if (optlen < sizeof(int))". Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: Add some missing types for debug messageWei Yongjun
This patch add the type name "AUTH" and primitive type name "PRIMITIVE_ASCONF" for debug message. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: fix kernel panic with ERROR chunk containing too many error causesWei Yongjun
If ERROR chunk is received with too many error causes in ESTABLISHED state, the kernel get panic. This is because sctp limit the max length of cmds to 14, but while ERROR chunk is received, one error cause will add around 2 cmds by sctp_add_cmd_sf(). So many error causes will fill the limit of cmds and panic. This patch fixed the problem. This bug can be test by SCTP Conformance Test Suite <http://networktest.sourceforge.net/>. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-02sctp: fix crash during module unloadVlad Yasevich
An extra list_del() during the module load failure and unload resulted in a crash with a list corruption. Now sctp can be unloaded again. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16sctp: Inherit all socket options from parent correctly.Vlad Yasevich
During peeloff/accept() sctp needs to save the parent socket state into the new socket so that any options set on the parent are inherited by the child socket. This was found when the parent/listener socket issues SO_BINDTODEVICE, but the data was misrouted after a route cache flush. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16sctp: Fix the RTO-doubling on idle-link heartbeatsVlad Yasevich
SCTP incorrectly doubles rto ever time a Hearbeat chunk is generated. However RFC 4960 states: On an idle destination address that is allowed to heartbeat, it is recommended that a HEARTBEAT chunk is sent once per RTO of that destination address plus the protocol parameter 'HB.interval', with jittering of +/- 50% of the RTO value, and exponential backoff of the RTO if the previous HEARTBEAT is unanswered. Essentially, of if the heartbean is unacknowledged, do we double the RTO. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16sctp: Clean up sctp checksumming codeVlad Yasevich
The sctp crc32c checksum is always generated in little endian. So, we clean up the code to treat it as little endian and remove all the __force casts. Suggested by Herbert Xu. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-16sctp: Allow to disable SCTP checksums via module parameterLucas Nussbaum
This is a new version of my patch, now using a module parameter instead of a sysctl, so that the option is harder to find. Please note that, once the module is loaded, it is still possible to change the value of the parameter in /sys/module/sctp/parameters/, which is useful if you want to do performance comparisons without rebooting. Computation of SCTP checksums significantly affects the performance of SCTP. For example, using two dual-Opteron 246 connected using a Gbe network, it was not possible to achieve more than ~730 Mbps, compared to 941 Mbps after disabling SCTP checksums. Unfortunately, SCTP checksum offloading in NICs is not commonly available (yet). By default, checksums are still enabled, of course. Signed-off-by: Lucas Nussbaum <lucas.nussbaum@ens-lyon.fr> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-01net: replace uses of __constant_{endian}Harvey Harrison
Base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-26Merge branch 'master' of ↵David S. Miller
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
2009-01-22sctp: Fix another socket race during accept/peeloffVlad Yasevich
There is a race between sctp_rcv() and sctp_accept() where we have moved the association from the listening socket to the accepted socket, but sctp_rcv() processing cached the old socket and continues to use it. The easy solution is to check for the socket mismatch once we've grabed the socket lock. If we hit a mis-match, that means that were are currently holding the lock on the listening socket, but the association is refrencing a newly accepted socket. We need to drop the lock on the old socket and grab the lock on the new one. A more proper solution might be to create accepted sockets when the new association is established, similar to TCP. That would eliminate the race for 1-to-1 style sockets, but it would still existing for 1-to-many sockets where a user wished to peeloff an association. For now, we'll live with this easy solution as it addresses the problem. Reported-by: Michal Hocko <mhocko@suse.cz> Reported-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22sctp: Properly timestamp outgoing data chunks for rtx purposesVlad Yasevich
Recent changes to the retransmit code exposed a long standing bug where it was possible for a chunk to be time stamped after the retransmit timer was reset. This caused a rare situation where the retrnamist timer has expired, but nothing was marked for retrnasmission because all of timesamps on data were less then 1 rto ago. As result, the timer was never restarted since nothing was retransmitted, and this resulted in a hung association that did couldn't complete the data transfer. The solution is to timestamp the chunk when it's added to the packet for transmission purposes. After the packet is trsnmitted the rtx timer is restarted. This guarantees that when the timer expires, there will be data to retransmit. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22sctp: Correctly start rtx timer on new packet transmissions.Vlad Yasevich
Commit 62aeaff5ccd96462b7077046357a6d7886175a57 (sctp: Start T3-RTX timer when fast retransmitting lowest TSN) introduced a regression where it was possible to forcibly restart the sctp retransmit timer at the transmission of any new chunk. This resulted in much longer timeout times and sometimes hung sctp connections. Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-22sctp/ipv6.c: use ipv6_addr_copyJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2009-01-08fix similar typos to successfullColy Li
When I review ocfs2 code, find there are 2 typos to "successfull". After doing grep "successfull " in kernel tree, 22 typos found totally -- great minds always think alike :) This patch fixes all the similar typos. Thanks for Randy's ack and comments. Signed-off-by: Coly Li <coyli@suse.de> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jeremy Kerr <jk@ozlabs.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Theodore Ts'o <tytso@mit.edu> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Vlad Yasevich <vladislav.yasevich@hp.com> Cc: Sridhar Samudrala <sri@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-06trivial: fix then -> than typos in comments and documentationFrederik Schwarzer
- (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-12-25sctp: Add validity check for SCTP_PARTIAL_DELIVERY_POINT socket optionWei Yongjun
The latest ietf socket extensions API draft said: 8.1.21. Set or Get the SCTP Partial Delivery Point Note also that the call will fail if the user attempts to set this value larger than the socket receive buffer size. This patch add this validity check for SCTP_PARTIAL_DELIVERY_POINT socket option. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25sctp: Avoid memory overflow while FWD-TSN chunk is received with bad stream IDWei Yongjun
If FWD-TSN chunk is received with bad stream ID, the sctp will not do the validity check, this may cause memory overflow when overwrite the TSN of the stream ID. The FORWARD-TSN chunk is like this: FORWARD-TSN chunk Type = 192 Flags = 0 Length = 172 NewTSN = 99 Stream = 10000 StreamSequence = 0xFFFF This patch fix this problem by discard the chunk if stream ID is not less than MIS. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25sctp: Implement socket option SCTP_GET_ASSOC_NUMBERWei Yongjun
Implement socket option SCTP_GET_ASSOC_NUMBER of the latest ietf socket extensions API draft. 8.2.5. Get the Current Number of Associations (SCTP_GET_ASSOC_NUMBER) This option gets the current number of associations that are attached to a one-to-many style socket. The option value is an uint32_t. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25sctp: Fix a typo in socket.cWei Yongjun
Just fix a typo in socket.c. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-12-25sctp: Bring SCTP_MAXSEG socket option into ietf API extension complianceWei Yongjun
Brings maxseg socket option set/get into line with the latest ietf socket extensions API draft, while maintaining backwards compatibility. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-27sctp: fix missing label when PROC_FS=nRandy Dunlap
Fix missing label when CONFIG_PROC_FS=n: net/sctp/protocol.c: In function 'sctp_proc_init': net/sctp/protocol.c:106: error: label 'out_nomem' used but not defined make[3]: *** [net/sctp/protocol.o] Error 1 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-25net: Use a percpu_counter for sockets_allocatedEric Dumazet
Instead of using one atomic_t per protocol, use a percpu_counter for "sockets_allocated", to reduce cache line contention on heavy duty network servers. Note : We revert commit (248969ae31e1b3276fc4399d67ce29a5d81e6fd9 net: af_unix can make unix_nr_socks visbile in /proc), since it is not anymore used after sock_prot_inuse_add() addition Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-25net: Make sure BHs are disabled in sock_prot_inuse_add()Eric Dumazet
prot->destroy is not called with BH disabled. So we must add explicit BH disable around call to sock_prot_inuse_add() in sctp_destroy_sock() Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-23net: Make sure BHs are disabled in sock_prot_inuse_add()David S. Miller
The rule of calling sock_prot_inuse_add() is that BHs must be disabled. Some new calls were added where this was not true and this tiggers warnings as reported by Ilpo. Fix this by adding explicit BH disabling around those call sites. Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-17net: sctp should update its inuse counterEric Dumazet
This patch is a preparation to namespace conversion of /proc/net/protocols In order to have relevant information for SCTP protocols, we should use sock_prot_inuse_add() to update a (percpu and pernamespace) counter of inuse sockets. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03net: '&' reduxAlexey Dobriyan
I want to compile out proc_* and sysctl_* handlers totally and stub them to NULL depending on config options, however usage of & will prevent this, since taking adress of NULL pointer will break compilation. So, drop & in front of every ->proc_handler and every ->strategy handler, it was never needed in fact. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-31net: replace NIPQUAD() in net/*/Harvey Harrison
Using NIPQUAD() with NIPQUAD_FMT, %d.%d.%d.%d or %u.%u.%u.%u can be replaced with %pI4 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-29net: replace %p6 with %pI6Harvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-28net, misc: replace uses of NIP6_FMT with %p6Harvey Harrison
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23sctp: Fix to handle SHUTDOWN in SHUTDOWN_RECEIVED stateWei Yongjun
Once an endpoint has reached the SHUTDOWN-RECEIVED state, it MUST NOT send a SHUTDOWN in response to a ULP request. The Cumulative TSN Ack of the received SHUTDOWN chunk MUST be processed. This patch fix to process Cumulative TSN Ack of the received SHUTDOWN chunk in SHUTDOWN_RECEIVED state. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>