- 06 10月, 2009 1 次提交
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由 Stephen Boyd 提交于
Commit 7069331d (connector: Provide the sender's credentials to the callback, 2009-10-02) changed callbacks to take two arguments but missed this one. drivers/connector/cn_proc.c: In function ‘cn_proc_init’: drivers/connector/cn_proc.c:263: warning: passing argument 3 of ‘cn_add_callback’ from incompatible pointer type Signed-off-by: NStephen Boyd <bebarino@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 03 10月, 2009 3 次提交
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Acked-by: NLars Ellenberg <lars.ellenberg@linbit.com> Acked-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Acked-by: NLars Ellenberg <lars.ellenberg@linbit.com> Acked-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Philipp Reisner 提交于
Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Acked-by: NLars Ellenberg <lars.ellenberg@linbit.com> Acked-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 9月, 2009 1 次提交
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由 Scott James Remnant 提交于
The act of a process becoming a session leader is a useful signal to a supervising init daemon such as Upstart. While a daemon will normally do this as part of the process of becoming a daemon, it is rare for its children to do so. When the children do, it is nearly always a sign that the child should be considered detached from the parent and not supervised along with it. The poster-child example is OpenSSH; the per-login children call setsid() so that they may control the pty connected to them. If the primary daemon dies or is restarted, we do not want to consider the per-login children and want to respawn the primary daemon without killing the children. This patch adds a new PROC_SID_EVENT and associated structure to the proc_event event_data union, it arranges for this to be emitted when the special PIDTYPE_SID pid is set. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: NScott James Remnant <scott@ubuntu.com> Acked-by: NMatt Helsley <matthltc@us.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Acked-by: N"David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 22 7月, 2009 1 次提交
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由 Evgeniy Polyakov 提交于
Signed-off-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 7月, 2009 1 次提交
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由 Mike Frysinger 提交于
The connector documentation states that the argument to the callback function is always a pointer to a struct cn_msg, but rather than encode it in the API itself, it uses a void pointer everywhere. This doesn't make much sense to encode the pointer in documentation as it prevents proper C type checking from occurring and can easily allow people to use the wrong pointer type. So convert the argument type to an explicit struct cn_msg pointer. Signed-off-by: NMike Frysinger <vapier@gentoo.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 13 6月, 2009 1 次提交
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由 Pavel Machek 提交于
.ko is normally not included in Kconfig help, make it consistent. Signed-off-by: NPavel Machek <pavel@ucw.cz> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 03 2月, 2009 1 次提交
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由 Frederic Weisbecker 提交于
The netlink connector uses its own workqueue to relay the datas sent from userspace to the appropriate callback. If you launch the test from Documentation/connector and change it a bit to send a high flow of data, you will see thousands of events coming to the "cqueue" workqueue by looking at the workqueue tracer. This flow of events can be sent very quickly. So, to not encumber the kevent workqueue and delay other jobs, the "cqueue" workqueue should remain. But this workqueue is pointless most of the time, it will always be created (assuming you have built it of course) although only developpers with specific needs will use it. So avoid this "most of the time useless task", this patch proposes to create this workqueue only when needed once. The first jobs to be sent to connector callbacks will be sent to kevent while the "cqueue" thread creation will be scheduled to kevent too. The following jobs will continue to be scheduled to keventd until the cqueue workqueue is created, and then the rest of the jobs will continue to perform as usual, through this dedicated workqueue. Each time I tested this patch, only the first event was sent to keventd, the rest has been sent to cqueue which have been created quickly. Also, this patch fixes some trailing whitespaces on the connector files. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Acked-by: NEvgeniy Polyakov <zbr@ioremap.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 11月, 2008 2 次提交
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由 David Howells 提交于
Use RCU to access another task's creds and to release a task's own creds. This means that it will be possible for the credentials of a task to be replaced without another task (a) requiring a full lock to read them, and (b) seeing deallocated memory. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NJames Morris <jmorris@namei.org> Acked-by: NSerge Hallyn <serue@us.ibm.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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由 David Howells 提交于
Separate the task security context from task_struct. At this point, the security data is temporarily embedded in the task_struct with two pointers pointing to it. Note that the Alpha arch is altered as it refers to (E)UID and (E)GID in entry.S via asm-offsets. With comment fixes Signed-off-by: Marc Dionne <marc.c.dionne@gmail.com> Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NJames Morris <jmorris@namei.org> Acked-by: NSerge Hallyn <serue@us.ibm.com> Signed-off-by: NJames Morris <jmorris@namei.org>
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- 28 6月, 2008 1 次提交
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由 Li Zefan 提交于
I got a problem when I wanted to check if the kernel supports process event connector, and It seems there's no way to do this check. At best I can check if the kernel supports connector or not, by looking into /proc/net/netlink, or maybe checking the return value of bind() to see if it's ENOENT. So it would be useful to add /proc/net/connector to list all supported connectors: # cat /proc/net/connector Name ID connector 4294967295:4294967295 cn_proc 1:1 w1 3:1 Changelog: - fix memory leak: s/seq_release/single_release - use spin_lock_bh instead of spin_lock_irqsave Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Acked-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 24 3月, 2008 1 次提交
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由 Evgeniy Polyakov 提交于
From: Evgeniy Polyakov <johnpol@2ka.mipt.ru> We don't need one cqueue thread for each CPU. cqueue is used for receiving userspace datagrams, which are very rare and thus will happily live with a single queue. Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 2月, 2008 1 次提交
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由 Li Zefan 提交于
It is used in connector.c only, so make it static. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 29 1月, 2008 5 次提交
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由 Denis V. Lunev 提交于
Create a specific helper for netlink kernel socket disposal. This just let the code look better and provides a ground for proper disposal inside a namespace. Signed-off-by: NDenis V. Lunev <den@openvz.org> Tested-by: NAlexey Dobriyan <adobriyan@openvz.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Li Zefan 提交于
- 'cb' is a fake struct member. In a previous patch struct cn_callback was renamed to cn_callback_id, so 'cb' should have been deleted at that time. - 'nls' isn't used and is redundant, we can retrieve this data through cn_callback_entry.pdev->nls. - 'seq' and 'group' should be u32, as they are declared to be u32 in other places. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Li Zefan 提交于
Struct member netlink_groups is never used, and I don't see how it can be useful. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Li Zefan 提交于
- __cn_rx_skb() does nothing but calls cn_call_callback(), it doesn't check skb and msg sizes as the comment suggests, but cn_rx_skb() checks those sizes. - In cn_rx_skb() Local variable 'len' is not used. 'len' is probably intended to be passed to skb_pull(), but here skb_pull() is not needed, instead skb_free() is called. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Li Zefan 提交于
Each entry in the list has a unique id, so just break out of the loop if the matched id is found. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 1月, 2008 1 次提交
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由 Li Zefan 提交于
cn_queue_free_callback() will touch 'dev'(i.e. cbq->pdev), so it should be called before atomic_dec(&dev->refcnt). Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 1月, 2008 1 次提交
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由 Li Zefan 提交于
Error code should be set to EINVAL instead of ENODEV if !queue_work(). There's another call of queue_work() which may set err to EINVAL. Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 31 10月, 2007 1 次提交
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由 Michal Januszewski 提交于
Remove a spurious call to kfree_skb() in the connector rx_skb handler. This fixes a regression introduced by the '[NET]: make netlink user -> kernel interface synchronious' patch (cd40b7d3) Signed-off-by: NMichal Januszewski <spock@gentoo.org> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 10月, 2007 2 次提交
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由 Denis V. Lunev 提交于
This patch make processing netlink user -> kernel messages synchronious. This change was inspired by the talk with Alexey Kuznetsov about current netlink messages processing. He says that he was badly wrong when introduced asynchronious user -> kernel communication. The call netlink_unicast is the only path to send message to the kernel netlink socket. But, unfortunately, it is also used to send data to the user. Before this change the user message has been attached to the socket queue and sk->sk_data_ready was called. The process has been blocked until all pending messages were processed. The bad thing is that this processing may occur in the arbitrary process context. This patch changes nlk->data_ready callback to get 1 skb and force packet processing right in the netlink_unicast. Kernel -> user path in netlink_unicast remains untouched. EINTR processing for in netlink_run_queue was changed. It forces rtnl_lock drop, but the process remains in the cycle until the message will be fully processed. So, there is no need to use this kludges now. Signed-off-by: NDenis V. Lunev <den@openvz.org> Acked-by: NAlexey Kuznetsov <kuznet@ms2.inr.ac.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric W. Biederman 提交于
Each netlink socket will live in exactly one network namespace, this includes the controlling kernel sockets. This patch updates all of the existing netlink protocols to only support the initial network namespace. Request by clients in other namespaces will get -ECONREFUSED. As they would if the kernel did not have the support for that netlink protocol compiled in. As each netlink protocol is updated to be multiple network namespace safe it can register multiple kernel sockets to acquire a presence in the rest of the network namespaces. The implementation in af_netlink is a simple filter implementation at hash table insertion and hash table look up time. Signed-off-by: NEric W. Biederman <ebiederm@xmission.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 17 7月, 2007 1 次提交
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由 Jan Engelhardt 提交于
Use menuconfigs instead of menus, so the whole menu can be disabled at once instead of going through all options. Signed-off-by: NJan Engelhardt <jengelh@gmx.de> Acked-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 26 4月, 2007 2 次提交
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由 Patrick McHardy 提交于
Switch cb_lock to mutex and allow netlink kernel users to override it with a subsystem specific mutex for consistent locking in dump callbacks. All netlink_dump_start users have been audited not to rely on any side-effects of the previously used spinlock. Signed-off-by: NPatrick McHardy <kaber@trash.net> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Arnaldo Carvalho de Melo 提交于
For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the number of direct accesses to skb->data and for consistency with all the other cast skb member helpers. Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 3月, 2007 1 次提交
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由 Philipp Reisner 提交于
When system under heavy stress and must allocate new work instead of reusing old one, new work must use correct completion callback. Patch is based on Philipp's and Lars' work. I only cleaned small stuff (and removed spaces instead of tabs). Signed-off-by: NPhilipp Reisner <philipp.reisner@linbit.com> Signed-off-by: NLars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 1月, 2007 1 次提交
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由 Erik Jacobson 提交于
On ia64, the various functions that make up cn_proc.c cause kernel unaligned access errors. If you are using these, for example, to get notification about all tasks forking and exiting, you get multiple unaligned access errors per process. Use put_unaligned() in the appropriate palces to fix this. Signed-off-by: NErik Jacobson <erikj@sgi.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: <stable@kernel.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 18 12月, 2006 2 次提交
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由 Evgeniy Polyakov 提交于
Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Evgeniy Polyakov 提交于
Linus has changed work queue structure and has not tested it with connector compiled in, his changes break the build. Attached patch fixes compilation error. Patch is against commit 99f5e971. Thanks to Toralf Förster for pointing this out. Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 11月, 2006 1 次提交
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由 David Howells 提交于
Fix up for make allyesconfig. Signed-Off-By: NDavid Howells <dhowells@redhat.com>
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- 01 8月, 2006 1 次提交
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由 Chandra Seetharaman 提交于
Events sent by Process Events Connector from a 64-bit kernel are not binary compatible with a 32-bit userspace program because the "timestamp" field (struct timespec) is not arch independent. This affects the fields that follow "timestamp" as they will be be off by 8 bytes. This is a problem for 32-bit userspace programs running with 64-bit kernels on ppc64, s390, x86-64.. any "biarch" system. Matt had submitted a different solution to lkml as an RFC earlier. We have since switched to a solution recommended by Evgeniy Polyakov. This patch fixes the problem by changing the timestamp to be a __u64, which stores the number of nanoseconds. Tested on a x86_64 system with both 32 bit application and 64 bit application and on a i386 system. Signed-off-by: NChandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: NMatt Helsley <matthltc@us.ibm.com> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 23 6月, 2006 2 次提交
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由 Andrew Morton 提交于
Put the connector exports at the functions so people can see them in context. Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Greg KH <greg@kroah.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Matt Helsley 提交于
Move connector header include to precisely where it's needed. Remove unused time.h header file as well. This was leftover from previous iterations of the process events patches. Signed-off-by: NMatt Helsley <matthltc@us.ibm.com> Cc: Guillaume Thouvenin <guillaume.thouvenin@bull.net> Cc: Nguyen Anh Quynh <aquynh@gmail.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 20 6月, 2006 1 次提交
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由 Evgeniy Polyakov 提交于
Attached patch declares connector init function as subsys_init() and returns -EAGAIN in case connector is not initialized yet. Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 6月, 2006 1 次提交
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由 Andreas Schwab 提交于
cn_queue.c:130: warning: value computed is not used There is no point in testing the atomic value if the result is thrown away. From Evgeniy: It was created to put implicit smp barrier, but it is not needed there. Signed-off-by: NAndreas Schwab <schwab@suse.de> Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 3月, 2006 1 次提交
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由 Arjan van de Ven 提交于
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: NArjan van de Ven <arjan@infradead.org> Signed-off-by: NIngo Molnar <mingo@elte.hu> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 21 3月, 2006 1 次提交
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由 Evgeniy Polyakov 提交于
Return -ESRCH from cn_netlink_send() when there are not listeners, just as it could be done by netlink_broadcast(). Propagate netlink_broadcast() error back to the caller. Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 11 1月, 2006 1 次提交
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由 Matt Helsley 提交于
Use ktime_get_ts() to take the timestamp instead of getnstimestamp(). This patch prepares to remove getnstimestamp() by switching its only user to a different function with almost exactly the same code. Signed-off-by: NMatt Helsley <matthltc@us.ibm.com> Cc: john stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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