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* [PATCH] Remove useless #ifdef MODULE stuff and printoutRalf Baechle2006-07-191-14/+0
| | | | | | | | | Get rid of the MODULE stuff. Could have rewritten to use modern interfaces but the copyright message of this BSD licensed code isn't interesting enough to be watched on every bootup, in every syslog. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] Remove useless castsRalf Baechle2006-07-191-6/+5
| | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] Convert to kzallocRalf Baechle2006-07-191-6/+3
| | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] Cleanup SLHC configurationRalf Baechle2006-07-193-8/+11
| | | | | | | | | Convert selection of serial line header compression to use CONFIG_SLHC rather than makefile ifeq uglyness. This makes it easier to select the SLHC module from other code. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sky2: add another PCI IDStephen Hemminger2006-07-191-0/+1
| | | | | | | Yet another PCI ID for 88E8056 Signed-off-by: Stephen Hemminger <sch@sch-laptop.localdomain> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] spidernet: rework tx queue handlingJens Osterkamp2006-07-172-377/+274
| | | | | | | | | | | | | With this patch TX queue descriptors are not chained per default any more. The pointer to next descriptor is set only when next descriptor is prepaired for transfer. Also the mechanism of checking wether Spider is ready has been changed: it checks not for CARDOWNED flag in status of previous descriptor but for a TXDMAENABLED flag in Spider's register. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] spidernet: bug fix for init codeJens Osterkamp2006-07-171-1/+1
| | | | | | | | We want to intitialize addr instead of data register first. Signed-off-by: Jens Osterkamp <Jens.Osterkamp@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [PATCH] sky2: NAPI poll fixStephen Hemminger2006-07-171-5/+2
| | | | | | | | | | | | When sky2 driver gets lots of received packets at once, it can get stuck. The NAPI poll routine gets called back to keep going, but since no IRQ bits are set it doesn't make progress. Increase version, since this is serious enough problem that I want to be able to tell new from old problems. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge branch 'upstream-fixes-jgarzik' of ↵Jeff Garzik2006-07-172-26/+29
|\ | | | | | | git://lost.foo-projects.org/~ahkok/git/netdev-2.6 into upstream-fixes
| * e1000: bump version to 7.1.9-k4Auke Kok2006-07-141-1/+1
| | | | | | | | | | | | Bump the version to 7.1.9-k4 to indicate three extra changes. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
| * e1000: fix panic on large frame receive when mtu=defaultAuke Kok2006-07-142-2/+4
| | | | | | | | | | | | | | | | | | | | A panic was reported when receiving 1522 size packets if using the default MTU. we should set the initial rx buffer length to the value that e1000changemtu sets so that we can receive any packet that would not be dropped by LPE=0. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke.jan.h.kok@intel.com>
| * e1000: remove CRC bytes from measured packet lengthAuke Kok2006-07-141-1/+9
| | | | | | | | | | | | | | | | After removing the hardware CRC stripping which causes problems with SOL and related issues, we need to compensate for this changed size. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
| * e1000: Redo netpoll fix to address community concernsAuke Kok2006-07-141-22/+15
| | | | | | | | | | | | | | | | | | | | The original suggested fix for netpoll was found to be racy on SMP kernels. While it is highly unlikely that this race would ever be seen in the real world due to current netpoll usage models, we implemented this updated fix to address concerns. Signed-off-by: Mitch Williams <mitch.a.williams@intel.com> Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
* | [NET] ethtool: fix oops by testing correct struct memberJeff Garzik2006-07-171-1/+1
| | | | | | | | | | | | Noticed by Willy Tarreau. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | Linux 2.6.18-rc2v2.6.18-rc2Linus Torvalds2006-07-151-1/+1
| | | | | | | | | | | | Finishing up for the kernel summit. Ottawa, here I come. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2006-07-152-18/+17
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: commit_mutex cleanups
| * | JFS: commit_mutex cleanupsEvgeniy Dushistov2006-06-052-18/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I look at code, and see that 1)locks wasn't release in the opposite order in which they were taken 2)in jfs_rename we lock new_ip, and in "error path" we didn't unlock it 3)I see strange expression: "! !" May be this worth to fix? Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
* | | [PATCH] UML - fix utsname build breakageJeff Dike2006-07-151-11/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some -mm-only material leaked into a patch destined for mainline, and I didn't notice. This was the replacement of system_utsname with utsname() that's required by the uts namespace patch. This patch reverts those changes (which are correct in -mm) so that mainline UML builds again. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | Don't allow chmod() on the /proc/<pid>/ filesLinus Torvalds2006-07-151-1/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This just turns off chmod() on the /proc/<pid>/ files, since there is no good reason to allow it, and had we disallowed it originally, the nasty /proc race exploit wouldn't have been possible. The other patches already fixed the problem chmod() could cause, so this is really just some final mop-up.. This particular version is based off a patch by Eugene and Marcel which had much better naming than my original equivalent one. Signed-off-by: Eugene Teo <eteo@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | Mark /proc MS_NOSUID and MS_NOEXECLinus Torvalds2006-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | Not that we really need this any more, but at the same time there's no reason not to do this. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] sch_htb compile fix.Dave Jones2006-07-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | net/sched/sch_htb.c: In function 'htb_change_class': net/sched/sch_htb.c:1605: error: expected ';' before 'do_gettimeofday' Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2006-07-141-2/+7
|\ \ \ | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6: [CRYPTO] padlock: Fix alignment after aes_ctx rearrange
| * | | [CRYPTO] padlock: Fix alignment after aes_ctx rearrangeMichal Ludvig2006-07-151-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Herbert's patch 82062c72cd643c99a9e1c231270acbab986fd23f in cryptodev-2.6 tree breaks alignment rules for PadLock xcrypt instruction leading to General protection Oopses. This patch fixes the problem. Signed-off-by: Michal Ludvig <michal@logix.cz> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2006-07-145-14/+14
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64] Fix PSYCHO PCI controler init. [SPARC64] psycho: Fix pbm->name handling in pbm_register_toplevel_resources() [SERIAL] sunsab: Fix significant typo in sab_probe() [SERIAL] sunsu: Report keyboard and mouse ports in kernel log. [SPARC64]: Make sure IRQs are disabled properly during early boot.
| * | | | [SPARC64] Fix PSYCHO PCI controler init.Marc Zyngier2006-07-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pbm->name should be initialized before calling pbm_register_toplevel_resources. Move the call a few lines down to avoid a nice Oops. Signed-off-by: Marc Zyngier <maz@misterjones.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | [SPARC64] psycho: Fix pbm->name handling in pbm_register_toplevel_resources()David S. Miller2006-07-141-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We shouldn't overwrite it, it's the device node full name already and that's what we want. Based upon a report from Marc Zyngier. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | [SERIAL] sunsab: Fix significant typo in sab_probe()David S. Miller2006-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of initializing both ports of a SAB device properly, we were setting up the first port structure twice and ending up only with the second port, oops. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | [SERIAL] sunsu: Report keyboard and mouse ports in kernel log.David S. Miller2006-07-141-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Otherwise there is no explicit mention of these devices. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | [SPARC64]: Make sure IRQs are disabled properly during early boot.David S. Miller2006-07-142-9/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Else we trigger the new irqs_disable() assertion in start_kernel(). Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-07-144-30/+73
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [VLAN]: __vlan_hwaccel_rx can use the faster ether_compare_addr [PKT_SCHED] HTB: initialize upper bound properly [IPV4]: Clear skb cb on IP input [NET]: Update frag_list in pskb_trim
| * | | | | [VLAN]: __vlan_hwaccel_rx can use the faster ether_compare_addrStephen Hemminger2006-07-141-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The inline function compare_ether_addr is faster than memcmp. Also, don't need to drag in proc_fs.h, the only reference to proc_dir_entry is a pointer so the declaration is needed here. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Acked-by: Ben Greear <greearb@candelatech.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [PKT_SCHED] HTB: initialize upper bound properlyStephen Hemminger2006-07-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The upper bound for HTB time diff needs to be scaled to PSCHED units rather than just assuming usecs. The field mbuffer is used in TDIFF_SAFE(), as an upper bound. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Acked-by: Jamal Hadi Salim <hadi@cyberus.ca> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [IPV4]: Clear skb cb on IP inputStephen Hemminger2006-07-141-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when data arrives at IP through loopback (and possibly other devices). So the field needs to be cleared before it confuses the route code. This was seen when running netem over loopback, but there are probably other device cases. Maybe this should go into stable? Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [NET]: Update frag_list in pskb_trimHerbert Xu2006-07-131-26/+65
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When pskb_trim has to defer to ___pksb_trim to trim the frag_list part of the packet, the frag_list is not updated to reflect the trimming. This will usually work fine until you hit something that uses the packet length or tail from the frag_list. Examples include esp_output and ip_fragment. Another problem caused by this is that you can end up with a linear packet with a frag_list attached. It is possible to get away with this if we audit everything to make sure that they always consult skb->len before going down onto frag_list. In fact we can do the samething for the paged part as well to avoid copying the data area of the skb. For now though, let's do the conservative fix and update frag_list. Many thanks to Marco Berizzi for helping me to track down this bug. This 4-year old bug took 3 months to track down. Marco was very patient indeed :) Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | [PATCH] remove set_wmb - arch removalSteven Rostedt2006-07-1423-31/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | set_wmb should not be used in the kernel because it just confuses the code more and has no benefit. Since it is not currently used in the kernel this patch removes it so that new code does not include it. All archs define set_wmb(var, value) to do { var = value; wmb(); } while(0) except ia64 and sparc which use a mb() instead. But this is still moot since it is not used anyway. Hasn't been tested on any archs but x86 and x86_64 (and only compiled tested) Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] remove set_wmb - doc updateSteven Rostedt2006-07-141-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the reference to set_wmb from memory-barriers.txt since it shouldn't be used. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] Remove down_write() from taskstats code invoked on the exit() pathShailabh Nagar2006-07-141-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In send_cpu_listeners(), which is called on the exit path, a down_write() was protecting operations like skb_clone() and genlmsg_unicast() that do GFP_KERNEL allocations. If the oom-killer decides to kill tasks to satisfy the allocations,the exit of those tasks could block on the same semphore. The down_write() was only needed to allow removal of invalid listeners from the listener list. The patch converts the down_write to a down_read and defers the removal to a separate critical region. This ensures that even if the oom-killer is called, no other task's exit is blocked as it can still acquire another down_read. Thanks to Andrew Morton & Herbert Xu for pointing out the oom related pitfalls, and to Chandra Seetharaman for suggesting this fix instead of using something more complex like RCU. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task delay accounting taskstats interface: control exit data ↵Shailabh Nagar2006-07-144-38/+198
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | through cpumasks On systems with a large number of cpus, with even a modest rate of tasks exiting per cpu, the volume of taskstats data sent on thread exit can overflow a userspace listener's buffers. One approach to avoiding overflow is to allow listeners to get data for a limited and specific set of cpus. By scaling the number of listeners and/or the cpus they monitor, userspace can handle the statistical data overload more gracefully. In this patch, each listener registers to listen to a specific set of cpus by specifying a cpumask. The interest is recorded per-cpu. When a task exits on a cpu, its taskstats data is unicast to each listener interested in that cpu. Thanks to Andrew Morton for pointing out the various scalability and general concerns of previous attempts and for suggesting this design. [akpm@osdl.org: build fix] Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task delay accounting: avoid send without listenersShailabh Nagar2006-07-141-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Don't send taskstats (per-pid or per-tgid) on thread exit when no one is listening for such data. Currently the taskstats interface allocates a structure, fills it in and calls netlink to send out per-pid and per-tgid stats regardless of whether a userspace listener for the data exists (netlink layer would check for that and avoid the multicast). As a result of this patch, the check for the no-listener case is performed early, avoiding the redundant allocation and filling up of the taskstats structures. Signed-off-by: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per task delay accounting taskstats interface: documentation fixShailabh Nagar2006-07-142-305/+365
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change documentation and example program to reflect the flow control issues being addressed by the cpumask changes. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] delay accounting taskstats interface send tgid onceShailabh Nagar2006-07-148-81/+162
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Send per-tgid data only once during exit of a thread group instead of once with each member thread exit. Currently, when a thread exits, besides its per-tid data, the per-tgid data of its thread group is also sent out, if its thread group is non-empty. The per-tgid data sent consists of the sum of per-tid stats for all *remaining* threads of the thread group. This patch modifies this sending in two ways: - the per-tgid data is sent only when the last thread of a thread group exits. This cuts down heavily on the overhead of sending/receiving per-tgid data, especially when other exploiters of the taskstats interface aren't interested in per-tgid stats - the semantics of the per-tgid data sent are changed. Instead of being the sum of per-tid data for remaining threads, the value now sent is the true total accumalated statistics for all threads that are/were part of the thread group. The patch also addresses a minor issue where failure of one accounting subsystem to fill in the taskstats structure was causing the send of taskstats to not be sent at all. The patch has been tested for stability and run cerberus for over 4 hours on an SMP. [akpm@osdl.org: bugfixes] Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: /proc export of aggregated block I/O delaysShailabh Nagar2006-07-143-2/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Export I/O delays seen by a task through /proc/<tgid>/stats for use in top etc. Note that delays for I/O done for swapping in pages (swapin I/O) is clubbed together with all other I/O here (this is not the case in the netlink interface where the swapin I/O is kept distinct) [akpm@osdl.org: printk warning fix] Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: documentationShailabh Nagar2006-07-143-0/+493
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some documentation for delay accounting. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: delay accounting usage of taskstats interfaceShailabh Nagar2006-07-147-7/+144
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Usage of taskstats interface by delay accounting. Signed-off-by: Shailabh Nagar <nagar@us.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: taskstats interfaceShailabh Nagar2006-07-148-0/+646
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create a "taskstats" interface based on generic netlink (NETLINK_GENERIC family), for getting statistics of tasks and thread groups during their lifetime and when they exit. The interface is intended for use by multiple accounting packages though it is being created in the context of delay accounting. This patch creates the interface without populating the fields of the data that is sent to the user in response to a command or upon the exit of a task. Each accounting package interested in using taskstats has to provide an additional patch to add its stats to the common structure. [akpm@osdl.org: cleanups, Kconfig fix] Signed-off-by: Shailabh Nagar <nagar@us.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: utilities for genetlink usageBalbir Singh2006-07-141-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two utilities for simplifying usage of NETLINK_GENERIC interface. Signed-off-by: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: cpu delay collection via schedstatsChandra Seetharaman2006-07-142-25/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the task-related schedstats functions callable by delay accounting even if schedstats collection isn't turned on. This removes the dependency of delay accounting on schedstats. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: sync block I/O and swapin delay collectionShailabh Nagar2006-07-145-0/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike earlier iterations of the delay accounting patches, now delays are only collected for the actual I/O waits rather than try and cover the delays seen in I/O submission paths. Account separately for block I/O delays incurred as a result of swapin page faults whose frequency can be affected by the task/process' rss limit. Hence swapin delays can act as feedback for rss limit changes independent of I/O priority changes. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] per-task-delay-accounting: setupShailabh Nagar2006-07-1410-0/+207
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Initialization code related to collection of per-task "delay" statistics which measure how long it had to wait for cpu, sync block io, swapping etc. The collection of statistics and the interface are in other patches. This patch sets up the data structures and allows the statistics collection to be disabled through a kernel boot parameter. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | [PATCH] list_is_last utilityShailabh Nagar2006-07-141-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add another list utility function to check for last element in a list. Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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