summaryrefslogtreecommitdiff
path: root/net/core/net-sysfs.c
AgeCommit message (Collapse)AuthorFilesLines
2013-09-07Merge branch 'for-linus' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull namespace changes from Eric Biederman: "This is an assorted mishmash of small cleanups, enhancements and bug fixes. The major theme is user namespace mount restrictions. nsown_capable is killed as it encourages not thinking about details that need to be considered. A very hard to hit pid namespace exiting bug was finally tracked and fixed. A couple of cleanups to the basic namespace infrastructure. Finally there is an enhancement that makes per user namespace capabilities usable as capabilities, and an enhancement that allows the per userns root to nice other processes in the user namespace" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: userns: Kill nsown_capable it makes the wrong thing easy capabilities: allow nice if we are privileged pidns: Don't have unshare(CLONE_NEWPID) imply CLONE_THREAD userns: Allow PR_CAPBSET_DROP in a user namespace. namespaces: Simplify copy_namespaces so it is clear what is going on. pidns: Fix hang in zap_pid_ns_processes by sending a potentially extra wakeup sysfs: Restrict mounting sysfs userns: Better restrictions on when proc and sysfs can be mounted vfs: Don't copy mount bind mounts of /proc/<pid>/ns/mnt between namespaces kernel/nsproxy.c: Improving a snippet of code. proc: Restrict mounting the proc filesystem vfs: Lock in place mounts from more privileged users
2013-09-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-0/+23
Pull networking changes from David Miller: "Noteworthy changes this time around: 1) Multicast rejoin support for team driver, from Jiri Pirko. 2) Centralize and simplify TCP RTT measurement handling in order to reduce the impact of bad RTO seeding from SYN/ACKs. Also, when both timestamps and local RTT measurements are available prefer the later because there are broken middleware devices which scramble the timestamp. From Yuchung Cheng. 3) Add TCP_NOTSENT_LOWAT socket option to limit the amount of kernel memory consumed to queue up unsend user data. From Eric Dumazet. 4) Add a "physical port ID" abstraction for network devices, from Jiri Pirko. 5) Add a "suppress" operation to influence fib_rules lookups, from Stefan Tomanek. 6) Add a networking development FAQ, from Paul Gortmaker. 7) Extend the information provided by tcp_probe and add ipv6 support, from Daniel Borkmann. 8) Use RCU locking more extensively in openvswitch data paths, from Pravin B Shelar. 9) Add SCTP support to openvswitch, from Joe Stringer. 10) Add EF10 chip support to SFC driver, from Ben Hutchings. 11) Add new SYNPROXY netfilter target, from Patrick McHardy. 12) Compute a rate approximation for sending in TCP sockets, and use this to more intelligently coalesce TSO frames. Furthermore, add a new packet scheduler which takes advantage of this estimate when available. From Eric Dumazet. 13) Allow AF_PACKET fanouts with random selection, from Daniel Borkmann. 14) Add ipv6 support to vxlan driver, from Cong Wang" Resolved conflicts as per discussion. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1218 commits) openvswitch: Fix alignment of struct sw_flow_key. netfilter: Fix build errors with xt_socket.c tcp: Add missing braces to do_tcp_setsockopt caif: Add missing braces to multiline if in cfctrl_linkup_request bnx2x: Add missing braces in bnx2x:bnx2x_link_initialize vxlan: Fix kernel panic on device delete. net: mvneta: implement ->ndo_do_ioctl() to support PHY ioctls net: mvneta: properly disable HW PHY polling and ensure adjust_link() works icplus: Use netif_running to determine device state ethernet/arc/arc_emac: Fix huge delays in large file copies tuntap: orphan frags before trying to set tx timestamp tuntap: purge socket error queue on detach qlcnic: use standard NAPI weights ipv6:introduce function to find route for redirect bnx2x: VF RSS support - VF side bnx2x: VF RSS support - PF side vxlan: Notify drivers for listening UDP port changes net: usbnet: update addr_assign_type if appropriate driver/net: enic: update enic maintainers and driver driver/net: enic: Exposing symbols for Cisco's low latency driver ...
2013-08-28sysfs: Restrict mounting sysfsEric W. Biederman1-0/+8
Don't allow mounting sysfs unless the caller has CAP_SYS_ADMIN rights over the net namespace. The principle here is if you create or have capabilities over it you can mount it, otherwise you get to live with what other people have mounted. Instead of testing this with a straight forward ns_capable call, perform this check the long and torturous way with kobject helpers, this keeps direct knowledge of namespaces out of sysfs, and preserves the existing sysfs abstractions. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2013-07-30net: export physical port id via sysfsJiri Pirko1-0/+22
Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Narendra K <narendra_k@dell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-07-26net: core: convert class code to use dev_groupsGreg Kroah-Hartman1-61/+75
The dev_attrs field of struct class is going away soon, dev_groups should be used instead. This converts the networking core class code to use the correct field. In order to do this in the "cleanest" way, some of the macros had to be changed to reflect the driver core format of naming show/store functions, which accounts for the majority of the churn in this file. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-06rps_dev_flow_table_release(): no need to delay vfree()Al Viro1-11/+1
The same story as with fib_trie patch - vfree() from RCU callbacks is legitimate now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-23net/core: apply pm_runtime_set_memalloc_noio on network devicesMing Lei1-0/+5
Deadlock might be caused by allocating memory with GFP_KERNEL in runtime_resume and runtime_suspend callback of network devices in iSCSI situation, so mark network devices and its ancestor as 'memalloc_noio' with the introduced pm_runtime_set_memalloc_noio(). Signed-off-by: Ming Lei <ming.lei@canonical.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: David Decotigny <david.decotigny@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jens Axboe <axboe@kernel.dk> Cc: Minchan Kim <minchan@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oneukum@suse.de> Cc: Jiri Kosina <jiri.kosina@suse.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Michal Hocko <mhocko@suse.cz> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-10net: Add support for XPS without sysfs being definedAlexander Duyck1-14/+0
This patch makes it so that we can support transmit packet steering without sysfs needing to be enabled. The reason for making this change is to make it so that a driver can make use of the XPS even while the sysfs portion of the interface is not present. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-10net: Add functions netif_reset_xps_queue and netif_set_xps_queueAlexander Duyck1-143/+5
This patch adds two functions, netif_reset_xps_queue and netif_set_xps_queue. The main idea behind these two functions is to provide a mechanism through which drivers can update their defaults in regards to XPS. Currently no such mechanism exists and as a result we cannot use XPS for things such as ATR which would require a basic configuration to start in which the Tx queues are mapped to CPUs via a 1:1 mapping. With this change I am making it possible for drivers such as ixgbe to be able to use the XPS feature by controlling the default configuration. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-28net: allow to change carrier via sysfsJiri Pirko1-1/+14
Make carrier writable Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Flavio Leitner <fbl@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-22CONFIG_HOTPLUG removal from networking coreGreg KH1-4/+0
CONFIG_HOTPLUG is always enabled now, so remove the unused code that was trying to be compiled out when this option was disabled, in the networking core. Cc: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-0/+20
Conflicts: drivers/net/wireless/iwlwifi/pcie/tx.c Minor iwlwifi conflict in TX queue disabling between 'net', which removed a bogus warning, and 'net-next' which added some status register poking code. Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-19net: remove unnecessary wireless includesJohannes Berg1-2/+0
The wireless and wext includes in net-sysfs.c aren't needed, so remove them. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-18net: Allow userns root control of the core of the network stack.Eric W. Biederman1-5/+10
Allow an unpriviled user who has created a user namespace, and then created a network namespace to effectively use the new network namespace, by reducing capable(CAP_NET_ADMIN) and capable(CAP_NET_RAW) calls to be ns_capable(net->user_ns, CAP_NET_ADMIN), or capable(net->user_ns, CAP_NET_RAW) calls. Settings that merely control a single network device are allowed. Either the network device is a logical network device where restrictions make no difference or the network device is hardware NIC that has been explicity moved from the initial network namespace. In general policy and network stack state changes are allowed while resource control is left unchanged. Allow ethtool ioctls. Allow binding to network devices. Allow setting the socket mark. Allow setting the socket priority. Allow setting the network device alias via sysfs. Allow setting the mtu via sysfs. Allow changing the network device flags via sysfs. Allow setting the network device group via sysfs. Allow the following network device ioctls. SIOCGMIIPHY SIOCGMIIREG SIOCSIFNAME SIOCSIFFLAGS SIOCSIFMETRIC SIOCSIFMTU SIOCSIFHWADDR SIOCSIFSLAVE SIOCADDMULTI SIOCDELMULTI SIOCSIFHWBROADCAST SIOCSMIIREG SIOCBONDENSLAVE SIOCBONDRELEASE SIOCBONDSETHWADDR SIOCBONDCHANGEACTIVE SIOCBRADDIF SIOCBRDELIF SIOCSHWTSTAMP Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-11-16wireless: add back sysfs directoryJohannes Berg1-0/+20
commit 35b2a113cb0298d4f9a1263338b456094a414057 broke (at least) Fedora's networking scripts, they check for the existence of the wireless directory. As the files aren't used, add the directory back and not the files. Also do it for both drivers based on the old wireless extensions and cfg80211, regardless of whether the compat code for wext is built into cfg80211 or not. Cc: stable@vger.kernel.org [3.6] Reported-by: Dave Airlie <airlied@gmail.com> Reported-by: Bill Nottingham <notting@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-09-05net: add unknown state to sysfs NIC duplex exportNikolay Aleksandrov1-3/+15
Currently when the NIC duplex state is DUPLEX_UNKNOWN it is exported as full through sysfs, this patch adds support for DUPLEX_UNKNOWN. It is handled the same way as in ethtool. Signed-off-by: Nikolay Aleksandrov <naleksan@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-05wireless: remove wext sysfsJohannes Berg1-74/+0
The only user of this was hal prior to its 0.5.12 release which happened over two years ago, so I'm sure this can be removed without issues. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-04-15net: cleanup unsigned to unsigned intEric Dumazet1-4/+4
Use of "unsigned int" is preferred to bare "unsigned" in net tree. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-12net/core: simple_strtoul cleanupShuah Khan1-3/+2
Changed net/core/net-sysfs.c: netdev_store() to use kstrtoul() instead of obsolete simple_strtoul(). Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-24static keys: Introduce 'struct static_key', static_key_true()/false() and ↵Ingo Molnar1-2/+2
static_key_slow_[inc|dec]() So here's a boot tested patch on top of Jason's series that does all the cleanups I talked about and turns jump labels into a more intuitive to use facility. It should also address the various misconceptions and confusions that surround jump labels. Typical usage scenarios: #include <linux/static_key.h> struct static_key key = STATIC_KEY_INIT_TRUE; if (static_key_false(&key)) do unlikely code else do likely code Or: if (static_key_true(&key)) do likely code else do unlikely code The static key is modified via: static_key_slow_inc(&key); ... static_key_slow_dec(&key); The 'slow' prefix makes it abundantly clear that this is an expensive operation. I've updated all in-kernel code to use this everywhere. Note that I (intentionally) have not pushed through the rename blindly through to the lowest levels: the actual jump-label patching arch facility should be named like that, so we want to decouple jump labels from the static-key facility a bit. On non-jump-label enabled architectures static keys default to likely()/unlikely() branches. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Jason Baron <jbaron@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: a.p.zijlstra@chello.nl Cc: mathieu.desnoyers@efficios.com Cc: davem@davemloft.net Cc: ddaney.cavm@gmail.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/20120222085809.GA26397@elte.hu Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-01-17bql: Fix inconsistency between file mode and attr method.Hiroaki SHIMODA1-1/+1
There is no store() method for inflight attribute in the tx-<n>/byte_queue_limits sysfs directory. So remove S_IWUSR bit. Signed-off-by: Hiroaki SHIMODA <shimoda.hiroaki@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-12net: reintroduce missing rcu_assign_pointer() callsEric Dumazet1-3/+3
commit a9b3cd7f32 (rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTER) did a lot of incorrect changes, since it did a complete conversion of rcu_assign_pointer(x, y) to RCU_INIT_POINTER(x, y). We miss needed barriers, even on x86, when y is not NULL. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-24rfs: better sizing of dev_flow_tableEric Dumazet1-17/+27
Aim of this patch is to provide full range of rps_flow_cnt on 64bit arches. Theorical limit on number of flows is 2^32 Fix some buggy RPS/RFS macros as well. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Tom Herbert <therbert@google.com> CC: Xi Wang <xi.wang@gmail.com> CC: Laurent Chavey <chavey@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+5
Conflicts: net/bluetooth/l2cap_core.c Just two overlapping changes, one added an initialization of a local variable, and another change added a new local variable. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-22rps: fix insufficient bounds checking in store_rps_dev_flow_table_cnt()Xi Wang1-2/+5
Setting a large rps_flow_cnt like (1 << 30) on 32-bit platform will cause a kernel oops due to insufficient bounds checking. if (count > 1<<30) { /* Enforce a limit to prevent overflow */ return -EINVAL; } count = roundup_pow_of_two(count); table = vmalloc(RPS_DEV_FLOW_TABLE_SIZE(count)); Note that the macro RPS_DEV_FLOW_TABLE_SIZE(count) is defined as: ... + (count * sizeof(struct rps_dev_flow)) where sizeof(struct rps_dev_flow) is 8. (1 << 30) * 8 will overflow 32 bits. This patch replaces the magic number (1 << 30) with a symbolic bound. Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Xi Wang <xi.wang@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-05bql: fix CONFIG_XPS=n buildEric Dumazet1-2/+0
netdev_queue_release() should be called even if CONFIG_XPS=n to properly release device reference. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-29bql: Byte queue limitsTom Herbert1-8/+132
Networking stack support for byte queue limits, uses dynamic queue limits library. Byte queue limits are maintained per transmit queue, and a dql structure has been added to netdev_queue structure for this purpose. Configuration of bql is in the tx-<n> sysfs directory for the queue under the byte_queue_limits directory. Configuration includes: limit_min, bql minimum limit limit_max, bql maximum limit hold_time, bql slack hold time Also under the directory are: limit, current byte limit inflight, current number of bytes on the queue Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-29xps: Add xps_queue_release functionTom Herbert1-42/+47
This patch moves the xps specific parts in netdev_queue_release into its own function which netdev_queue_release can call. This allows netdev_queue_release to be more generic (for adding new attributes to tx queues). Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-17net: use jump_label to shortcut RPS if not setupEric Dumazet1-2/+5
Most machines dont use RPS/RFS, and pay a fair amount of instructions in netif_receive_skb() / netif_rx() / get_rps_cpu() just to discover RPS/RFS is not setup. Add a jump_label named rps_needed. If no device rps_map or global rps_sock_flow_table is setup, netif_receive_skb() / netif_rx() do a single instruction instead of many ones, including conditional jumps. jmp +0 (if CONFIG_JUMP_LABEL=y) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> CC: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16net: new counter for tx_timeout errors in sysfsdavid decotigny1-6/+31
This adds the /sys/class/net/DEV/queues/Q/tx_timeout attribute containing the total number of timeout events on the given queue. It is always available with CONFIG_SYSFS, independently of CONFIG_RPS/XPS. Credits to Stephen Hemminger for a preliminary version of this patch. Tested: without CONFIG_SYSFS (compilation only) with sysfs and without CONFIG_RPS & CONFIG_XPS with sysfs and without CONFIG_RPS with sysfs and without CONFIG_XPS with defaults Signed-off-by: David Decotigny <david.decotigny@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-11-16net-sysfs: fixed minor sparse warningdavid decotigny1-6/+6
This commit fixes following warning: net/core/net-sysfs.c:921:6: warning: symbol 'numa_node' shadows an earlier one include/linux/topology.h:222:1: originally declared here Signed-off-by: David Decotigny <david.decotigny@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-31net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modulesPaul Gortmaker1-0/+1
These files are non modular, but need to export symbols using the macros now living in export.h -- call out the include so that things won't break when we remove the implicit presence of module.h from everywhere. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-15net: consolidate and fix ethtool_ops->get_settings callingJiri Pirko1-2/+2
This patch does several things: - introduces __ethtool_get_settings which is called from ethtool code and from drivers as well. Put ASSERT_RTNL there. - dev_ethtool_get_settings() is replaced by __ethtool_get_settings() - changes calling in drivers so rtnl locking is respected. In iboe_get_rate was previously ->get_settings() called unlocked. This fixes it. Also prb_calc_retire_blk_tmo() in af_packet.c had the same problem. Also fixed by calling __dev_get_by_index() instead of dev_get_by_index() and holding rtnl_lock for both calls. - introduces rtnl_lock in bnx2fc_vport_create() and fcoe_vport_create() so bnx2fc_if_create() and fcoe_if_create() are called locked as they are from other places. - use __ethtool_get_settings() in bonding code Signed-off-by: Jiri Pirko <jpirko@redhat.com> v2->v3: -removed dev_ethtool_get_settings() -added ASSERT_RTNL into __ethtool_get_settings() -prb_calc_retire_blk_tmo - use __dev_get_by_index() and lock around it and __ethtool_get_settings() call v1->v2: add missing export_symbol Reviewed-by: Ben Hutchings <bhutchings@solarflare.com> [except FCoE bits] Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-12net: cleanup some rcu_dereference_rawEric Dumazet1-2/+2
RCU api had been completed and rcu_access_pointer() or rcu_dereference_protected() are better than generic rcu_dereference_raw() Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02rcu: convert uses of rcu_assign_pointer(x, NULL) to RCU_INIT_POINTERStephen Hemminger1-2/+2
When assigning a NULL value to an RCU protected pointer, no barrier is needed. The rcu_assign_pointer, used to handle that but will soon change to not handle the special case. Convert all rcu_assign_pointer of NULL value. //smpl @@ expression P; @@ - rcu_assign_pointer(P, NULL) + RCU_INIT_POINTER(P, NULL) // </smpl> Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-07-14net: remove /sys/class/net/*/featuresMichał Mirosław1-2/+0
The same information and more can be obtained by using ethtool with ETHTOOL_GFEATURES. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-12Delay struct net freeing while there's a sysfs instance refering to itAl Viro1-14/+9
* new refcount in struct net, controlling actual freeing of the memory * new method in kobj_ns_type_operations (->drop_ns()) * ->current_ns() semantics change - it's supposed to be followed by corresponding ->drop_ns(). For struct net in case of CONFIG_NET_NS it bumps the new refcount; net_drop_ns() decrements it and calls net_free() if the last reference has been dropped. Method renamed to ->grab_current_ns(). * old net_free() callers call net_drop_ns() instead. * sysfs_exit_ns() is gone, along with a large part of callchain leading to it; now that the references stored in ->ns[...] stay valid we do not need to hunt them down and replace them with NULL. That fixes problems in sysfs_lookup() and sysfs_readdir(), along with getting rid of sb->s_instances abuse. Note that struct net *shutdown* logics has not changed - net_cleanup() is called exactly when it used to be called. The only thing postponed by having a sysfs instance refering to that struct net is actual freeing of memory occupied by struct net. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-05-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6Linus Torvalds1-15/+11
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
2011-05-16net: convert to new cpumask APIKOSAKI Motohiro1-1/+1
We plan to remove cpu_xx() old api later. Thus this patch convert it. This patch has no functional change. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-07net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu()Lai Jiangshan1-10/+2
The rcu callback xps_dev_maps_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xps_dev_maps_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2011-05-07net,rcu: convert call_rcu(xps_map_release) to kfree_rcu()Lai Jiangshan1-9/+2
The rcu callback xps_map_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xps_map_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2011-05-07net,rcu: convert call_rcu(rps_map_release) to kfree_rcu()Lai Jiangshan1-9/+2
The rcu callback rps_map_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(rps_map_release). Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
2011-04-29ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny1-14/+10
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-02-09net: rename group sysfs entry to netdev_groupXiaotian Feng1-1/+1
commit a512b92 adds sysfs entry for net device group, but before this commit, tun also uses group sysfs, so after this commit checkin, kernel warns like this: sysfs: cannot create duplicate filename '/devices/virtual/net/vnet0/group' Since tun has used this for years, rename sysfs under tun might break existing userspace, so rename group sysfs entry for net device group is a better choice. Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24net: add sysfs entry for device groupVlad Dogaru1-0/+15
The group of a network device can be queried or changed from userspace using sysfs. For example, considering sysfs mounted in /sys, one can change the group that interface lo belongs to: echo 1 > /sys/class/net/lo/group Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org> Acked-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-01-24net: change netdev->features to u32Michał Mirosław1-1/+1
Quoting Ben Hutchings: we presumably won't be defining features that can only be enabled on 64-bit architectures. Occurences found by `grep -r` on net/, drivers/net, include/ [ Move features and vlan_features next to each other in struct netdev, as per Eric Dumazet's suggestion -DaveM ] Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: use NUMA_NO_NODE instead of the magic number -1Changli Gao1-1/+2
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-01net sched: use xps information for qdisc NUMA affinityEric Dumazet1-1/+11
Allocate qdisc memory according to NUMA properties of cpus included in xps map. To be effective, qdisc should be (re)setup after changes of /sys/class/net/eth<n>/queues/tx-<n>/xps_cpus I added a numa_node field in struct netdev_queue, containing NUMA node if all cpus included in xps_cpus share same node, else -1. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-29xps: add __rcu annotationsEric Dumazet1-9/+15
Avoid sparse warnings : add __rcu annotations and use rcu_dereference_protected() where necessary. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-29xps: NUMA allocations for per cpu dataEric Dumazet1-2/+3
store_xps_map() allocates maps that are used by single cpu, it makes sense to use NUMA allocations. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 09:45:03 +0000