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* net: pass kern to net_proto_family create functionEric Paris2009-11-06
| | | | | | | | | | | The generic __sock_create function has a kern argument which allows the security system to make decisions based on if a socket is being created by the kernel or by userspace. This patch passes that flag to the net_proto_family specific create function, so it can do the same thing. Signed-off-by: Eric Paris <eparis@redhat.com> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS/IB+IW: Move recv processing to a taskletAndy Grover2009-10-30
| | | | | | | | | Move receive processing from event handler to a tasklet. This should help prevent hangcheck timer from going off when RDS is under heavy load. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Do not send congestion updates to loopback connectionsAndy Grover2009-10-30
| | | | | | | | | | This issue was discovered by HP's Pradeep and fixed in OFED 1.3, but not fixed in later versions, since the fix's implementation was not immediately applyable to the later code. This patch should do the trick for 1.4+ codebases. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Fix panic on unloadAndy Grover2009-10-30
| | | | | | | | | | Remove explicit destruction of passive connection when destroying active end of the connection. The passive end is also on the device's connection list, and will thus be cleaned up properly. Panic was caused by trying to clean it up twice. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Fix potential race around rds_i[bw]_allocationAndy Grover2009-10-30
| | | | | | | | | | | | | | | | | | | | | | "At rds_ib_recv_refill_one(), it first executes atomic_read(&rds_ib_allocation) for if-condition checking, and then executes atomic_inc(&rds_ib_allocation) if the condition was not satisfied. However, if any other code which updates rds_ib_allocation executes between these two atomic operation executions, it seems that it may result race condition. (especially when rds_ib_allocation + 1 == rds_ib_sysctl_max_recv_allocation)" This patch fixes this by using atomic_inc_unless to eliminate the possibility of allocating more than rds_ib_sysctl_max_recv_allocation and then decrementing the count if the allocation fails. It also makes an identical change to the iwarp transport. Reported-by: Shin Hong <hongshin@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Add GET_MR_FOR_DEST sockoptAndy Grover2009-10-30
| | | | | | | | | | | | | | | | RDS currently supports a GET_MR sockopt to establish a memory region (MR) for a chunk of memory. However, the fastreg method ties a MR to a particular destination. The GET_MR_FOR_DEST sockopt allows the remote machine to be specified, and thus support for fastreg (aka FRWRs). Note that this patch does *not* do all of this - it simply implements the new sockopt in terms of the old one, so applications can begin to use the new sockopt in preparation for cutover to FRWRs. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: rename some inet_sock fieldsEric Dumazet2009-10-18
| | | | | | | | | | | | | | | | In order to have better cache layouts of struct sock (separate zones for rx/tx paths), we need this preliminary patch. Goal is to transfert fields used at lookup time in the first read-mostly cache line (inside struct sock_common) and move sk_refcnt to a separate cache line (only written by rx path) This patch adds inet_ prefix to daddr, rcv_saddr, dport, num, saddr, sport and id fields. This allows a future patch to define these fields as macros, like sk_refcnt, without name clashes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mark net_proto_ops as constStephen Hemminger2009-10-07
| | | | | | | All usages of structure net_proto_ops should be declared const. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Make setsockopt() optlen be unsigned.David S. Miller2009-09-30
| | | | | | | | | | | | This provides safety against negative optlen at the type level instead of depending upon (sometimes non-trivial) checks against this sprinkled all over the the place, in each and every implementation. Based upon work done by Arjan van de Ven and feedback from Linus Torvalds. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2009-09-17
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (66 commits) be2net: fix some cmds to use mccq instead of mbox atl1e: fix 2.6.31-git4 -- ATL1E 0000:03:00.0: DMA-API: device driver frees DMA pkt_sched: Fix qstats.qlen updating in dump_stats ipv6: Log the affected address when DAD failure occurs wl12xx: Fix print_mac() conversion. af_iucv: fix race when queueing skbs on the backlog queue af_iucv: do not call iucv_sock_kill() twice af_iucv: handle non-accepted sockets after resuming from suspend af_iucv: fix race in __iucv_sock_wait() iucv: use correct output register in iucv_query_maxconn() iucv: fix iucv_buffer_cpumask check when calling IUCV functions iucv: suspend/resume error msg for left over pathes wl12xx: switch to %pM to print the mac address b44: the poll handler b44_poll must not enable IRQ unconditionally ipv6: Ignore route option with ROUTER_PREF_INVALID bonding: make ab_arp select active slaves as other modes cfg80211: fix SME connect rc80211_minstrel: fix contention window calculation ssb/sdio: fix printk format warnings p54usb: add Zcomax XG-705A usbid ...
| * net: constify remaining proto_opsAlexey Dobriyan2009-09-14
| | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'for-linus' of ↵Linus Torvalds2009-09-15
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (46 commits) powerpc64: convert to dynamic percpu allocator sparc64: use embedding percpu first chunk allocator percpu: kill lpage first chunk allocator x86,percpu: use embedding for 64bit NUMA and page for 32bit NUMA percpu: update embedding first chunk allocator to handle sparse units percpu: use group information to allocate vmap areas sparsely vmalloc: implement pcpu_get_vm_areas() vmalloc: separate out insert_vmalloc_vm() percpu: add chunk->base_addr percpu: add pcpu_unit_offsets[] percpu: introduce pcpu_alloc_info and pcpu_group_info percpu: move pcpu_lpage_build_unit_map() and pcpul_lpage_dump_cfg() upward percpu: add @align to pcpu_fc_alloc_fn_t percpu: make @dyn_size mandatory for pcpu_setup_first_chunk() percpu: drop @static_size from first chunk allocators percpu: generalize first chunk allocator selection percpu: build first chunk allocators selectively percpu: rename 4k first chunk allocator to page percpu: improve boot messages percpu: fix pcpu_reclaim() locking ... Fix trivial conflict as by Tejun Heo in kernel/sched.c
| * percpu: use DEFINE_PER_CPU_SHARED_ALIGNED()Tejun Heo2009-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are a few places where ___cacheline_aligned* is used with DEFINE_PER_CPU(). Use DEFINE_PER_CPU_SHARED_ALIGNED() instead. DEFINE_PER_CPU_SHARED_ALIGNED() applies alignment only on SMPs. While all other converted places used _in_smp variant or only get compiled for SMP, net/rds used unconditional ____cacheline_aligned. I don't see any reason these data structures should be aligned on UP and thus converted together. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Andy Grover <andy.grover@oracle.com>
* | RDS: Add a debug message suggesting to load transport modulesAndy Grover2009-08-23
| | | | | | | | | | | | | | | | | | Now that RDS transports are no longer compiled-in to RDS core, there is now the possibility that they will not be loaded. This adds a helpful suggestion when rds_bind() fails to find a transport. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Track transports via an array, not a listAndy Grover2009-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | Now that transports can be loaded in arbitrary order, it is important for rds_trans_get_preferred() to look for them in a particular order, instead of walking the list until it finds a transport that works for a given address. Now, each transport registers for a specific transport slot, and these are ordered so that preferred transports come first, and then if they are not loaded, other transports are queried. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Modularize RDMA and TCP transportsAndy Grover2009-08-23
| | | | | | | | | | | | | | | | | | | | | | Enable the building of transports as modules. Also, improve consistency of Kconfig messages in relation to other protocols, and move build dependency on IB from the RDS core code to the rds_rdma module. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Export symbols from core RDSAndy Grover2009-08-23
| | | | | | | | | | | | | | | | Now that rdma and tcp transports will be modularized, we need to export a number of functions so they can call them. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Add TCP transport to RDSAndy Grover2009-08-23
| | | | | | | | | | | | | | | | | | | | | | This code allows RDS to be tunneled over a TCP connection. RDMA operations are disabled when using TCP transport, but this frees RDS from the IB/RDMA stack dependency, and allows it to be used with standard Ethernet adapters, or in a VM. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/rds: Use AF_INET for sin_family fieldJulia Lawall2009-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Elsewhere the sin_family field holds a value with a name of the form AF_..., so it seems reasonable to do so here as well. Also the values of PF_INET and AF_INET are the same. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ struct sockaddr_in sip; @@ ( sip.sin_family == - PF_INET + AF_INET | sip.sin_family != - PF_INET + AF_INET | sip.sin_family = - PF_INET + AF_INET ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mark read-only arrays as constJan Engelhardt2009-08-05
| | | | | | | | | | | | | | | | String literals are constant, and usually, we can also tag the array of pointers const too, moving it to the .rodata section. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Refactor end of __conn_create for readabilityAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | Add a comment for what's going on. Remove negative logic. I find this much easier to understand quickly, although there are a few lines duplicated. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IW: Remove dead codeAndy Grover2009-07-20
| | | | | | | | | | | | | | In iWARP code, node_type will always be RNIC Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IW: Remove page_shift variable from iwarp transportAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | The existing code treated page_shift as a variable, when in fact we always want to have the fastreg page size be the same as the arch's page size -- and it is, so this doesn't need to be a variable. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Always use PAGE_SIZE for FMR page sizeAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | While FMRs allow significant flexibility in what size of pages they can use, we really just want FMR pages to match CPU page size. Roland says we can count on this always being supported, so this simplifies things. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Fix completion notifications on blocking socketsAndy Grover2009-07-20
| | | | | | | | | | | | | | | | Completion or congestion notifications were not being checked if the socket went to sleep. This patch fixes that. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Drop connection when a fatal QP event is receivedAndy Grover2009-07-20
| | | | | | | | | | Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Disable flow control in sysctl and explain whyAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | | | | | | | Backwards compatibility with rds 3.0 causes protocol- based flow control to be disabled as a side-effect. I don't want to pull out FC support from the IB transport but I do want to document and keep the sysctl consistent if possible. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Move tx/rx ring init and refill to laterAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | Since RDS 3.0 and 3.1 have different packet formats, we need to wait until after protocol negotiation is complete to layout the rx buffers. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Don't set c_version in __rds_conn_create()Andy Grover2009-07-20
| | | | | | | | | | | | | | | | Protocol negotiation is logically a property of the transports, so rds core need not set it. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Rename byte_len to data_len to enhance readabilityAndy Grover2009-07-20
| | | | | | | | | | | | | | | | Of course len is in bytes. Calling it data_len hopefully indicates a little better what the variable is actually for. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/RDMA: Fix cut-n-paste errors in printks in rdma_transport.cAndy Grover2009-07-20
| | | | | | | | | | Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Fix printk to indicate remote IP, not localAndy Grover2009-07-20
| | | | | | | | | | Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Handle connections using RDS 3.0 wire protocolAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The big differences between RDS 3.0 and 3.1 are protocol-level flow control, and with 3.1 the header is in front of the data. The header always ends up in the header buffer, and the data goes in the data page. In 3.0 our "header" is a trailer, and will end up either in the data page, the header buffer, or split across the two. Since 3.1 is backwards- compatible with 3.0, we need to continue to support these cases. This patch does that -- if using RDS 3.0 wire protocol, it will copy the header from wherever it ended up into the header buffer. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IB: Improve RDS protocol version checkingAndy Grover2009-07-20
| | | | | | | | | | | | | | | | | | RDS on IB uses privdata to do protocol version negotiation. Apparently the IB stack will return a larger privdata buffer than the struct we were expecting. Just to be extra-sure, this patch adds some checks in this area. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Set retry_count to 2 and make modifiable via modparamAndy Grover2009-07-20
|/ | | | | | | | This will be default cause IB connections to failover faster, but allow a longer retry count to be used if desired. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-05-19
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/scsi/fcoe/fcoe.c
| * FRV: Fix the section attribute on UP DECLARE_PER_CPU()David Howells2009-04-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU() does not agree with that specified by DEFINE_PER_CPU(). This means that architectures that have a small data section references relative to a base register may throw up linkage errors due to too great a displacement between where the base register points and the per-CPU variable. On FRV, the .h declaration says that the variable is in the .sdata section, but the .c definition says it's actually in the .data section. The linker throws up the following errors: kernel/built-in.o: In function `release_task': kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o To fix this, DECLARE_PER_CPU() should simply apply the same section attribute as does DEFINE_PER_CPU(). However, this is made slightly more complex by virtue of the fact that there are several variants on DEFINE, so these need to be matched by variants on DECLARE. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | ERR_PTR() dereference in net/rds/ib.cDan Carpenter2009-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | rdma_create_id() doesn't return NULL, only ERR_PTR(). Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | ERR_PTR() dereference in net/rds/iw.cDan Carpenter2009-04-09
| | | | | | | | | | | | | | | | | | | | | | | | | | rdma_create_id() returns ERR_PTR() not null. Found by smatch (http://repo.or.cz/w/smatch.git). Compile tested. regards, dan carpenter Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | rds: use kmem_cache_zalloc instead of kmem_cache_alloc/memsetWei Yongjun2009-04-09
| | | | | | | | | | | | | | | | Use kmem_cache_zalloc instead of kmem_cache_alloc/memset. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: remove unused #include <version.h>Huang Weiyi2009-04-09
| | | | | | | | | | | | | | | | Remove unused #include <version.h> in net/rds/af_rds.c. Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: use get_user_pages_fast()Andy Grover2009-04-09
| | | | | | | | | | | | | | Use the new function that is simpler and faster. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Establish connection before parsing CMSGsAndy Grover2009-04-09
| | | | | | | | | | | | | | | | | | The first message to a remote node should prompt a new connection. Even an RDMA op via CMSG. Therefore move CMSG parsing to after connection establishment. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Fix ordering in a conditionalAndy Grover2009-04-09
| | | | | | | | | | | | | | | | | | | | | | Putting the constant first is a supposed "best practice" that actually makes the code harder to read. Thanks to Roland Dreier for finding a bug in this "simple, obviously correct" patch. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IW+IB: Allow max credit advertise window.Steve Wise2009-04-09
| | | | | | | | | | | | | | | | Fix hack that restricts the credit advertisement to 127. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IW+IB: Set the RDS_LL_SEND_FULL bit when we're throttled.Steve Wise2009-04-09
| | | | | | | | | | | | | | | | | | | | The RDS_LL_SEND_FULL bit should be set when we stop transmitted due to flow control. Otherwise the send worker will keep trying as opposed to sleeping until we unthrottle. Saves CPU. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS: Correct some iw references in rdma_transport.cAndy Grover2009-04-09
| | | | | | | | | | | | | | | | Had some lingering instances of _iw_ variable names from when the listen code was centralized into rdma_transport.c Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | RDS/IW+IB: Set recv ring low water mark to 1/2 full.Steve Wise2009-04-09
|/ | | | | | | | | | | | Currently the recv ring low water mark is 1/4 the depth. Performance measurements show that this limits iWARP throughput by flow controlling the rds-stress senders. Setting it to 1/2 seems to max the T3 performance. I tried even higher levels but that didn't help and it started to increase the rds thread cpu utilization. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Use spinlock to protect 64b value update on 32b archsAndy Grover2009-04-02
| | | | | | | | | | | | | | | We have a 64bit value that needs to be set atomically. This is easy and quick on all 64bit archs, and can also be done on x86/32 with set_64bit() (uses cmpxchg8b). However other 32b archs don't have this. I actually changed this to the current state in preparation for mainline because the old way (using a spinlock on 32b) resulted in unsightly #ifdefs in the code. But obviously, being correct takes precedence. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* RDS: Rewrite connection cleanup, fixing oops on rmmodAndy Grover2009-04-02
| | | | | | | | | | | | | | | | | | | | | | This fixes a bug where a connection was unexpectedly not on *any* list while being destroyed. It also cleans up some code duplication and regularizes some function names. * Grab appropriate lock in conn_free() and explain in comment * Ensure via locking that a conn is never not on either a dev's list or the nodev list * Add rds_xx_remove_conn() to match rds_xx_add_conn() * Make rds_xx_add_conn() return void * Rename remove_{,nodev_}conns() to destroy_{,nodev_}conns() and unify their implementation in a helper function * Document lock ordering as nodev conn_lock before dev_conn_lock Reported-by: Yosef Etigin <yosefe@voltaire.com> Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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