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6c504d3 Bjorn Helgaas 15 August 2007, 16:32:11 UTC ISAPNP: removed unused isapnp_detected and ISAPNP_DEBUG ISAPNP_DEBUG isn't used at all. isapnp_detected is set but never read. So remove them both. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:27:24 UTC
4721a4c Bjorn Helgaas 15 August 2007, 16:32:10 UTC PNPACPI: remove unnecessary casts of "void *" Remove unnecessary casts of void pointers. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:27:24 UTC
4cec086 Bjorn Helgaas 15 August 2007, 16:32:09 UTC PNPACPI: simplify irq_flags() No need for a temporary variable; just return the flags once we know them. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:27:23 UTC
1e0aa9a Bjorn Helgaas 15 August 2007, 16:32:08 UTC PNP: fix up after Lindent More manual fixups after Lindent. No functional change. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:27:23 UTC
79d2dfa Thomas Renninger 24 August 2007, 05:24:47 UTC ACPI: enable GPEs before calling _WAK on resume It seems it's required to enable GPEs before _WAK. E.g. X60 triggers a LID related GPE instead of doing a Notify in WAK. Now the GPE reaches the kernel and the Notify for LID status change gets thrown from there. Signed-off-by: Thomas Renninger <trenn@suse.de> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:24:47 UTC
e1996a6 Guillaume Chazarain 16 August 2007, 16:18:53 UTC asus-laptop: Fix rmmod of asus_laptop The asus laptop driver conditionnaly registers leds in asus_led_register() depending on their availability, but unconditionnaly unregisters them all at exit time or when the module fails to load. Unregistering not registered leds result in the following Oops. So we should check before unregistering. [<c032d2f9>] do_page_fault+0x511/0x5e9 [<c032bae2>] error_code+0x6a/0x70 [<c026abf8>] device_unregister+0x26/0x32 [<f8864218>] led_classdev_unregister+0x58/0x94 [led_class] [<f88a90f8>] asus_led_exit+0x17/0x41 [asus_laptop] [<f88a91c9>] asus_laptop_exit+0xd/0x3f [asus_laptop] [<c013cee1>] sys_delete_module+0x17b/0x1a2 [<c0106eae>] sysenter_past_esp+0x6b/0xa1 EIP: [<c026a9a3>] device_del+0xb/0x23a SS:ESP 0068:f594ef0c Signed-off-by: Guillaume Chazarain <guichaz@yahoo.fr> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 05:07:30 UTC
015a916 Mattia Dongili 12 August 2007, 07:20:27 UTC sony-laptop: call sonypi_compat_init earlier sonypi_compat uses a kfifo that needs to be present before _SRS is called to be able to cope with the IRQs triggered when setting resources. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 04:57:20 UTC
f46d160 Mattia Dongili 12 August 2007, 07:20:26 UTC sony-laptop: enable Vaio FZ events Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 04:56:59 UTC
1a8f461 Linus Torvalds 24 August 2007, 04:40:33 UTC Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: libata: don't check n_sectors during revalidation if zero pata_via: Add Arima W730-K8 and other rebadgings pata_sis: Add the FSC Amilo and friends pata_pdc2027x: PLL detection fixes libata: fix n_sectors failure handling during revalidation 24 August 2007, 04:40:33 UTC
b1b8aca Linus Torvalds 24 August 2007, 04:40:07 UTC Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23 * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23: sh: missing symbol fix for sh4-202 sh: Fix DSP opcode regression for SH3-DSP parts. 24 August 2007, 04:40:07 UTC
abcb1ff Jesper Juhl 24 August 2007, 00:28:42 UTC tty: dont needlessly cast kmalloc() return value kmalloc() hands us a void pointer, we don't need to cast it. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:39:41 UTC
87bd1e9 Linus Torvalds 24 August 2007, 04:38:54 UTC Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: V4L/DVB (6070): Fix a warning at dvb_net V4L/DVB (6042): b2c2-flexcop: fix Airstar HD5000 tuning regression 24 August 2007, 04:38:54 UTC
d0797b3 Linus Torvalds 24 August 2007, 04:38:39 UTC Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched * git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: sched: tweak the sched_runtime_limit tunable sched: skip updating rq's next_balance under null SD sched: fix broken SMT/MC optimizations sched: accounting regression since rc1 sched: fix sysctl directory permissions sched: sched_clock_idle_[sleep|wakeup]_event() 24 August 2007, 04:38:39 UTC
0542170 Linus Torvalds 24 August 2007, 04:38:21 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix bad error path in conversion routines 9p: remove deprecated v9fs_fid_lookup_remove() 9p: update maintainers and documentation 9p: fix use after free 24 August 2007, 04:38:21 UTC
6dc2c1b Miloslav Trmac 23 August 2007, 09:19:53 UTC Renumber AUDIT_TTY_[GS]ET Renumber AUDIT_TTY_[GS]ET to avoid a conflict with netlink message types already used in the wild. Signed-off-by: Miloslav Trmac <mitr@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:37:45 UTC
1ff6f3d Linus Torvalds 24 August 2007, 04:36:13 UTC Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: sdhci: tell which spurious interrupt we got sdhci: handle data interrupts during command mmc: ignore bad max block size in sdhci sdhci: be more cautious about block count register drivers/mmc/core/host.c: kmalloc + memset conversion to kzalloc drivers/mmc/core/bus.c: kmalloc + memset conversion to kzalloc 24 August 2007, 04:36:13 UTC
2b56fec Linus Torvalds 24 August 2007, 04:35:45 UTC Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6 * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Run k8t_sound_hostbridge quirk only when needed PCI: disable MSI on RX790 PCI: disable MSI on RD580 PCI: disable MSI on RS690 PCI: make pcie_get_readrq visible in pci.h PCI: lets kill the 'PCI hidden behind bridge' message pci/hotplug/cpqphp_ctrl.c: remove stale BKL use PCI: Document pci_iomap() PCI: quirk_e100_interrupt() called too early PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.h 24 August 2007, 04:35:45 UTC
9e1a3e3 Linus Torvalds 24 August 2007, 04:35:04 UTC Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6 * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (35 commits) usb: add PRODUCT, TYPE to usb-interface events USB: resubmission unusual_devs modification for Nikon D80 usb quirks: Add Canon EOS 5D (PC Connection mode) to the autosuspend blacklist USB: make EHCI initialize properly on PPC SOCs UEAGLE: Remove sysfs files on error case USB: fsl_usb2_udc: fix bug in processing setup requests USB: g_file_storage: fix bug in DMA buffer handling USB: update last_busy field correctly USB: fix DoS in pwc USB video driver USB: allow retry on descriptor fetch errors USB: unkill cxacru atm driver USB: Adding support for HTC Smartphones to ipaq USB: another quirky device USB: quirky mass storage device USB: ohci, fix oddball gcc warning usb-storage: fix bugs in the disconnect pathway usb: typo in usb R8A66597 HCD config USB: accept 1-byte Device Status replies, fixing some b0rken devices USB: blacklist Samsung ML-2010 printer usb-serial: fix oti6858.c segfault in termios handling ... 24 August 2007, 04:35:04 UTC
de80af4 Linus Torvalds 24 August 2007, 04:34:43 UTC Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: sysfs: don't warn on removal of a nonexistent binary file HOWTO: latest lxr url address changed HOWTO: korean translation of Documentation/HOWTO Fix Off-by-one in /sys/module/*/refcnt sysfs: fix locking in sysfs_lookup() and sysfs_rename_dir() 24 August 2007, 04:34:43 UTC
405d296 Greg Ungerer 23 August 2007, 23:26:12 UTC m68knommu: include linux/fs.h for do_pipe() Include linux/fs.h to get the prototype for do_pipe(). Build fix. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:32:54 UTC
01740fc Greg Ungerer 23 August 2007, 23:25:59 UTC m68knommu: include asm-generic/pgtable.h Include asm-generic/pgtable.h to pick up the lazy_mmu_mode and lazy_cpu_mode macros. Won't build without them. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:32:54 UTC
07ef309 Greg Ungerer 23 August 2007, 23:26:06 UTC m68knommu: include linux/fs.h for getname() Include linux/fs.h to get the prototype for getname(). Build fix. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:32:54 UTC
604de6e Alan Cox 23 August 2007, 19:18:55 UTC pata_it821x: Fix regression/corruptor Whoever did the PCI revision patch slipped up on the it821x, and I didn't spot this at the time either. They moved the check for the errata from the 0x10 revision to 0x11. Put it back This one is important for 2.6.23 final as in some cases bad things will occur if 0x10 revision boards don't get the fixups. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:32:54 UTC
f9319f9 Alexey Starikovskiy 24 August 2007, 04:10:11 UTC ACPI: EC: revert fix for bugzilla 8709 This is a manual revert of 7c010de7506954e973abfab5c5999c5a97f7a73e, a fix that broke another ASUS in 8909 and 8919. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 04:30:59 UTC
deec595 Alexey Dobriyan 23 August 2007, 20:03:47 UTC lguest should depend on CONFIG_FUTEX It uses get_futex_key(). Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 24 August 2007, 04:23:33 UTC
a1eb96a Zhang Rui 20 August 2007, 10:23:51 UTC ACPI video hotkey: remove invalid events handler for video output devices Both ACPI_VIDEO_NOTIFY_SWITCH and ACPI_VIDEO_NOTIFY_PROBE are valid for video bus devices only. Actually ACPI video output device should never be notified for a output device switch/probe. ACPI bus devices notify handler already has the code to handle these kinds of events. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 03:06:11 UTC
a7ecd1e Yu Luming 24 August 2007, 03:05:55 UTC ACPI: video: Add keycode for ACPI video driver hotkey events. Signed-off-by: Luming Yu <luming.yu@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> 24 August 2007, 03:05:55 UTC
71351b9 H. Peter Anvin 23 August 2007, 16:28:42 UTC [x86 setup] Make sure AH=00h when setting a video mode Passing a u8 into a register doesn't mean gcc will zero-extend it. Also, don't depend on thhe register not to change. Per bug report from Saul Tamari. Signed-off-by: H. Peter Anvin <hpa@zytor.com> 23 August 2007, 20:03:25 UTC
b015124 H. Peter Anvin 22 August 2007, 23:28:01 UTC [x86 setup] Volatilize asm() statements asm() statements need to be volatile when: a. They have side effects (other than value returned). b. When the value returned can vary over time. c. When they have ordering constraints that cannot be expressed to gcc. In particular, the keyboard and timer reads were violating constraint (b), which resulted in the keyboard/timeout poll getting loop-invariant-removed when compiling with gcc 4.2.0. Thanks to an anonymous bug reporter for pointing this out. Signed-off-by: H. Peter Anvin <hpa@zytor.com> 23 August 2007, 20:03:25 UTC
14e04fb Len Brown 23 August 2007, 19:20:26 UTC ACPI: Schedule /proc/acpi/event for removal Schedule /proc/acpi/event for removal in 6 months. Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event() to make sure there is no confusion that it is for /proc/acpi/event only. Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event. There is no functional change if CONFIG_ACPI_PROC_EVENT=y Signed-off-by: Len Brown <len.brown@intel.com> 23 August 2007, 19:20:26 UTC
962ce8c Zhang Rui 22 August 2007, 17:24:31 UTC ACPI: don't duplicate input events on netlink The previous events patch added a netlink event for every user of the legacy /proc/acpi/event interface. However, some users of /proc/acpi/event are really input events, and they already report their events via the input layer. Introduce a new interface, acpi_bus_generate_netlink_event(), which is explicitly called by devices that want to repoprt events via netlink. This allows the input-like events to opt-out of generating netlink events. In summary: events that are sent via netlink: ac/battery/sbs thermal processor thinkpad_acpi dock/bay events that are sent via input layer: button video hotkey thinkpad_acpi hotkey asus_acpi/asus-laptop hotkey sonypi/sonylaptop Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com> 23 August 2007, 18:27:23 UTC
04b35ab Mauro Carvalho Chehab 20 August 2007, 19:45:35 UTC V4L/DVB (6070): Fix a warning at dvb_net static function dvb_net_sec declares input arg "pkt" as u8. However, the same argument at dvb_net_sec_callback is defined as "const u8". When calling dvb_net_sec, this is casted as just "u8". gcc 4.2.1 generates a warning about that: CC [M] drivers/media/dvb/dvb-core/dvb_net.o drivers/media/dvb/dvb-core/dvb_net.c: In function "dvb_net_sec_callback": drivers/media/dvb/dvb-core/dvb_net.c:905: warning: passing argument 2 of "dvb_net_sec" discards qualifiers from pointer target type Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> 23 August 2007, 16:17:32 UTC
6175e48 Trent Piepho 19 August 2007, 08:05:54 UTC V4L/DVB (6042): b2c2-flexcop: fix Airstar HD5000 tuning regression Git changeset 6bdcc6e6dbab8daffd05e5026486f34ba41a6c72 dropped the stand-alone lgh06xf module, whose functionality was absorbed into the dvb-pll module. However, there was a minor difference between the code in lgh06xf and dvb-pll, which caused a regression in b2c2-flexcop devices using the LG-H06xF NIM. dvb-pll will probe for the presence of an i2c pll chip by performing a single byte read, the lgh06xf driver did not do this. Unfortunately, the code in flexcop-i2c.c does not currently support 1 byte or 0 byte reads as a probe. Such probes with the current code will always fail. In order to work around this problem, and restore proper functionality of the Airstar HD5000 device, this hack was created to make the probe appear to succeed. The single byte read in dvb_pll_attach is the only place where such a probe would ever occur, so this change is safe, and will not affect any other devices. Of course, if one knew how to actually perform the read operation, it would be better to go that route. In the meantime, however, we must apply this workaround, in order to prevent the regression that causes tuning to fail on the Airstar HD5000 ATSC device. Thanks to Jarod Wilson, who had originally reported this regression, and to Geoffrey Hausheer, whose original workaround patch led us to find the actual cause of the problem. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Cc: Geoffrey Hausheer <inli3epy93n@phracturedblue.com> Acked-by: Jarod Wilson <jwilson@redhat.com> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> 23 August 2007, 16:17:32 UTC
02881d9 Mariusz Kozlowski 23 August 2007, 15:24:28 UTC 9p: fix bad error path in conversion routines When buf_check_overflow() returns != 0 we will hit kfree(ERR_PTR(err)) and it will not be happy about it. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> 23 August 2007, 15:25:05 UTC
fbcb759 Eric Van Hensbergen 23 August 2007, 15:08:45 UTC 9p: remove deprecated v9fs_fid_lookup_remove() This patch removes the v9fs_fid_lookup_remove which is no longer used. Based on original patch from Adrian Bunk <bunk@stusta.de> which used #if 0 to isolate the code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> 23 August 2007, 15:13:45 UTC
27a2a5f Eric Van Hensbergen 23 July 2007, 18:06:13 UTC 9p: update maintainers and documentation Updates to the MAINTAINERS file and documentation for 9p to point to the swik wiki versus the outdated sf.net page. Also updated some email addresses and added pointers to papers which better describe the implementation and application of the Linux 9p client. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> 23 August 2007, 15:12:48 UTC
1a3cac6 Eric Van Hensbergen 26 July 2007, 19:04:54 UTC 9p: fix use after free On 7/22/07, Adrian Bunk <bunk@stusta.de> wrote: The Coverity checker spotted the following use-after-free in net/9p/mux.c: <-- snip --> ... struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize, unsigned char *extended) { ... if (!m->tagpool) { kfree(m); return ERR_PTR(PTR_ERR(m->tagpool)); } ... <-- snip --> Also spotted was a leak of the same structure further down in the function. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> 23 August 2007, 15:12:48 UTC
505c0ef Ingo Molnar 23 August 2007, 13:18:02 UTC sched: tweak the sched_runtime_limit tunable Michael Gerdau reported reniced task CPU usage weirdnesses. Such symptoms can be caused by limit underruns so double the sched_runtime_limit. Signed-off-by: Ingo Molnar <mingo@elte.hu> 23 August 2007, 13:18:02 UTC
f549da8 Suresh Siddha 23 August 2007, 13:18:02 UTC sched: skip updating rq's next_balance under null SD Was playing with sched_smt_power_savings/sched_mc_power_savings and found out that while the scheduler domains are reconstructed when sysfs settings change, rebalance_domains() can get triggered with null domain on other cpus, which is setting next_balance to jiffies + 60*HZ. Resulting in no idle/busy balancing for 60 seconds. Fix this. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 23 August 2007, 13:18:02 UTC
f8700df Suresh Siddha 23 August 2007, 13:18:02 UTC sched: fix broken SMT/MC optimizations On a four package system with HT - HT load balancing optimizations were broken. For example, if two tasks end up running on two logical threads of one of the packages, scheduler is not able to pull one of the tasks to a completely idle package. In this scenario, for nice-0 tasks, imbalance calculated by scheduler will be 512 and find_busiest_queue() will return 0 (as each cpu's load is 1024 > imbalance and has only one task running). Similarly MC scheduler optimizations also get fixed with this patch. [ mingo@elte.hu: restored fair balancing by increasing the fuzz and adding it back to the power decision, without the /2 factor. ] Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 23 August 2007, 13:18:02 UTC
efe567f Christian Borntraeger 23 August 2007, 13:18:02 UTC sched: accounting regression since rc1 Fix the accounting regression for CONFIG_VIRT_CPU_ACCOUNTING. It reverts parts of commit b27f03d4bdc145a09fb7b0c0e004b29f1ee555fa by converting fs/proc/array.c back to cputime_t. The new functions task_utime and task_stime now return cputime_t instead of clock_t. If CONFIG_VIRT_CPU_ACCOUTING is set, task->utime and task->stime are returned directly instead of using sum_exec_runtime. Patch is tested on s390x with and without VIRT_CPU_ACCOUTING as well as on i386. [ mingo@elte.hu: cleanups, comments. ] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> 23 August 2007, 13:18:02 UTC
c57baf1 Eric W. Biederman 23 August 2007, 13:18:02 UTC sched: fix sysctl directory permissions There are two remaining gotchas: - The directories have impossible permissions (writeable). - The ctl_name for the kernel directory is inconsistent with everything else. It should be CTL_KERN. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> 23 August 2007, 13:18:02 UTC
2aa44d0 Ingo Molnar 23 August 2007, 13:18:02 UTC sched: sched_clock_idle_[sleep|wakeup]_event() construct a more or less wall-clock time out of sched_clock(), by using ACPI-idle's existing knowledge about how much time we spent idling. This allows the rq clock to work around TSC-stops-in-C2, TSC-gets-corrupted-in-C3 type of problems. ( Besides the scheduler's statistics this also benefits blktrace and printk-timestamps as well. ) Furthermore, the precise before-C2/C3-sleep and after-C2/C3-wakeup callbacks allow the scheduler to get out the most of the period where the CPU has a reliable TSC. This results in slightly more precise task statistics. the ACPI bits were acked by Len. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Len Brown <len.brown@intel.com> 23 August 2007, 13:18:02 UTC
b54eebd Tejun Heo 17 August 2007, 09:46:51 UTC libata: don't check n_sectors during revalidation if zero If the initial configuration fails early, n_sectors is left at zero. Checking against it during revalidation makes retried configuration fail due to n_sectors mismatch. Ignore zero n_sectors during revalidation. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> 23 August 2007, 09:34:05 UTC
9edbdbe Alan Cox 22 August 2007, 21:57:48 UTC pata_via: Add Arima W730-K8 and other rebadgings More cable funnies Signed-off-by: Alan Cox <alan@redhat.com> Tested-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org> 23 August 2007, 09:32:07 UTC
4f2d47c Alan Cox 22 August 2007, 21:56:43 UTC pata_sis: Add the FSC Amilo and friends More short cables Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> 23 August 2007, 09:32:07 UTC
78c4af0 Mikael Pettersson 18 August 2007, 20:58:53 UTC pata_pdc2027x: PLL detection fixes Previously I reported that the pata_pdc2027x PLL detection changes in kernel 2.6.22 broke the driver on my PowerMac: >pata_pdc2027x: Invalid PLL input clock 1691742kHz, give up! This is followed by a number of errors and speed reduction steps on the affected ports. There are two bugs in pata_pdc2027x's PLL detection code: 1. The PLL counter's start value is read before the chip is put in "test mode". Outside of test mode the counter is halted, and on the PowerMac the counter is zero because the chip hasn't been initialised by its BIOS. The fix is to move the read of the start value to after test mode is started, but before the mdelay() in test mode. This also improves the precision of the PLL detection. 2. The code to compute the number of PLL decrements during the mdelay() in test mode fails to consider that the PLL counter only is 30 bits wide. If there is a wraparound, it will compute an incorrect and much too large value. On the PowerMac, the start count is zero, the end count is a large 30-bit value, so wraparound occurs and an out of bounds PLL clock is detected. The fix is to mask the (start - end) computation to 30 bits. While debugging this I also noticed that pdc_read_counter() reads the two halves of the 30-bit PLL counter as 16-bit values, and then combines them as if the halves only are 15 bits wide. To avoid confusion, the halves should be read as 15-bit values. This patch implements all three changes. It fixes the PLL detection failure on my PowerMac, and doesn't cause any regressions on an x86 with an identical card. Signed-off-by: Mikael Pettersson <mikpe@it.uu.se> Signed-off-by: Jeff Garzik <jeff@garzik.org> 23 August 2007, 09:32:07 UTC
8270bec Tejun Heo 15 August 2007, 18:02:22 UTC libata: fix n_sectors failure handling during revalidation If revalidation fails because device has different n_sectors after configuration the original n_sectors should be restored before failing revalidation. Without this fix, n_sectors difference will incorrectly and silently pass revalidation when revalidation is retried. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org> 23 August 2007, 09:23:14 UTC
b67ac3f Pierre Ossman 12 August 2007, 15:29:47 UTC sdhci: tell which spurious interrupt we got When we get unexpected interrupts, also print which interrupt it was. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:31:07 UTC
e538fbe Pierre Ossman 12 August 2007, 14:46:32 UTC sdhci: handle data interrupts during command It is fully legal for a controller to start issuing data related interrupts before it has signalled that the command has completed. Make sure the driver actually can handle this. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:30:53 UTC
03f8590 David Vrabel 10 August 2007, 12:25:03 UTC mmc: ignore bad max block size in sdhci Some SDHC cards report an invalid maximum block size, in these cases assume they support block sizes up to 512 bytes instead of returning an error. Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:27:50 UTC
2b06197 Pierre Ossman 12 August 2007, 11:13:24 UTC sdhci: be more cautious about block count register The block count register shouldn't be trusted for single block transfers, so avoid using it completely when calculating transferred bytes. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:27:44 UTC
be760a9 Mariusz Kozlowski 10 August 2007, 21:00:50 UTC drivers/mmc/core/host.c: kmalloc + memset conversion to kzalloc drivers/mmc/core/host.c | 3509 -> 3457 (-52 bytes) drivers/mmc/core/host.o | 92400 -> 92136 (-264 bytes) Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:26:31 UTC
733cb1e Mariusz Kozlowski 10 August 2007, 21:00:47 UTC drivers/mmc/core/bus.c: kmalloc + memset conversion to kzalloc drivers/mmc/core/bus.c | 5663 -> 5619 (-44 bytes) drivers/mmc/core/bus.o | 70899 -> 70731 (-168 bytes) Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> 23 August 2007, 04:26:26 UTC
b377fd3 Mel Gorman 22 August 2007, 21:02:05 UTC Apply memory policies to top two highest zones when highest zone is ZONE_MOVABLE The NUMA layer only supports NUMA policies for the highest zone. When ZONE_MOVABLE is configured with kernelcore=, the the highest zone becomes ZONE_MOVABLE. The result is that policies are only applied to allocations like anonymous pages and page cache allocated from ZONE_MOVABLE when the zone is used. This patch applies policies to the two highest zones when the highest zone is ZONE_MOVABLE. As ZONE_MOVABLE consists of pages from the highest "real" zone, it's always functionally equivalent. The patch has been tested on a variety of machines both NUMA and non-NUMA covering x86, x86_64 and ppc64. No abnormal results were seen in kernbench, tbench, dbench or hackbench. It passes regression tests from the numactl package with and without kernelcore= once numactl tests are patched to wait for vmstat counters to update. akpm: this is the nasty hack to fix NUMA mempolicies in the presence of ZONE_MOVABLE and kernelcore= in 2.6.23. Christoph says "For .24 either merge the mobility or get the other solution that Mel is working on. That solution would only use a single zonelist per node and filter on the fly. That may help performance and also help to make memory policies work better." Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Tested-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
8e92f21 Yoichi Yuasa 22 August 2007, 21:02:03 UTC au1100fb: move au1100fb_fb_blank() beforce au1100fb_setmode() au1100fb_fb_blank() should come before au1100fb_setmode(). drivers/video/au1100fb.c: In function 'au1100fb_setmode': drivers/video/au1100fb.c:211: error: implicit declaration of function 'au1100fb_fb_blank' Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
4ae8aea Andrew Morton 22 August 2007, 21:02:01 UTC newport_con warning fix drivers/video/console/newport_con.c: In function `newport_console_init': drivers/video/console/newport_con.c:743: warning: return makes integer from pointer without a cast Although one wonders whether that should have been -ENODEV... Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
0aa4263 Andrew Morton 22 August 2007, 21:02:01 UTC selection.h: add tty_struct forward declaration In file included from drivers/video/console/newport_con.c:16: include/linux/selection.h:16: warning: "struct tty_struct" declared inside parameter list include/linux/selection.h:16: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
de5986d Stephen Rothwell 22 August 2007, 21:02:00 UTC Check for PPC32 in imsttfb This is the correct fix according to Paul Mackerras and allows an allyesconfig on PPC64 to build. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Paul Mackerras <paulus@samba.org> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
0852ec8 Mathieu Desnoyers 22 August 2007, 21:01:59 UTC Xen i386 xen-head.S fix sections mixup Xen i386 xen-head.S fix sections mixup xen-head.S does not come back to the data section, leaving the text section as current section. It causes problems with a slightly enhanced DEBUG_RODATA that supports CONFIG_HOTPLUG and bringing a CPU up after the text has been marked read-only: reference to early_gdt_descr causes a page fault. Updates: - It should be using pushsection/popsection. - Actually, the push/popsections around the ELFNOTEs are redundant; ELFNOTE() does its own push/popsection to put things into the appropriate .note* section anyway. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Acked-by: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Chris Wright <chrisw@sous-sol.org> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
abd96ec Oleg Nesterov 22 August 2007, 21:01:58 UTC exec: kill unsafe BUG_ON(sig->count) checks de_thread: if (atomic_read(&oldsighand->count) <= 1) BUG_ON(atomic_read(&sig->count) != 1); This is not safe without the rmb() in between. The results of two correctly ordered __exit_signal()->atomic_dec_and_test()'s could be seen out of order on our CPU. The same is true for the "thread_group_empty()" case, __unhash_process()'s changes could be seen before atomic_dec_and_test(&sig->count). On some platforms (including i386) atomic_read() doesn't provide even the compiler barrier, in that case these checks are simply racy. Remove these BUG_ON()'s. Alternatively, we can do something like BUG_ON( ({ smp_rmb(); atomic_read(&sig->count) != 1; }) ); Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
5c076fc David Brownell 22 August 2007, 21:01:57 UTC rtc-max6902 minor fixes Minor tweaks to rtc-max6902: make it hotplug correctly, and fix a few space-before-tab whitespace botches. This driver has no current in-tree users, so the hotplug fix changes the driver name. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
a2f92ee Christoph Lameter 22 August 2007, 21:01:57 UTC SLUB: do not fail on broken memory configurations Print a big fat warning and do what is necessary to continue if a node is marked as up (meaning either node is online (upstream) or node has memory (Andrew's tree)) but allocations from the node do not succeed. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
9e86943 Christoph Lameter 22 August 2007, 21:01:56 UTC SLUB: use atomic_long_read for atomic_long variables SLUB is using atomic_read() for variables declared atomic_long_t. Switch to atomic_long_read(). Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:47 UTC
fe58103 Miguel Ojeda 22 August 2007, 21:01:56 UTC cfag12864b fix This one-liner patch fixes a bug in drivers/auxdisplay/cfag12864b.c At cfag12864b_init(), the driver tries to kalloc some memory in the variable cfag12864b_cache. Then, as usual, it checks if the call failed. However, it checks cfag12864b_buffer instead. This patch changes the "cfag12864b_buffer" to "cfag12864b_cache" so the correct variable is checked. Signed-off-by: Miguel Ojeda <maxextreme@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
aa79850 Olof Johansson 22 August 2007, 21:01:55 UTC serial: add pci ids for PA Semi PWRficient onchip uarts Add PCI IDs for the onchip UARTs on PA Semi PWRficient. Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
1864f7b Ian Kent 22 August 2007, 21:01:54 UTC autofs4: deadlock during create Due to inconsistent locking in the VFS between calls to lookup and revalidate deadlock can occur in the automounter. The inconsistency is that the directory inode mutex is held for both lookup and revalidate calls when called via lookup_hash whereas it is held only for lookup during a path walk. Consequently, if the mutex is held during a call to revalidate autofs4 can't release the mutex to callback the daemon as it can't know whether it owns the mutex. This situation happens when a process tries to create a directory within an automount and a second process also tries to create the same directory between the lookup and the mkdir. Since the first process has dropped the mutex for the daemon callback, the second process takes it during revalidate leading to deadlock between the autofs daemon and the second process when the daemon tries to create the mount point directory. After spending quite a bit of time trying to resolve this on more than one occassion, using rather complex and ulgy approaches, it turns out that just delaying the hashing of the dentry until the create operation works fine. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
f4768ff Jeff Dike 22 August 2007, 21:01:53 UTC uml: fix previous request size limit fix The previous patch which limited the number of sectors in a single request to a COWed device was correct in concept, but the limit was implemented in the wrong place. By putting it in ubd_add, it covered the cases where the COWing was specified on the command line. However, when the command line only has the COW file specified, the fact that it's a COW file isn't known until it's opened, so the limit is missed in these cases. This patch moves the sector limit from ubd_add to ubd_open_dev. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
a88aa78 NeilBrown 22 August 2007, 21:01:53 UTC md: correctly update sysfs when a raid1 is reshaped When a raid1 array is reshaped (number of drives changed), the list of devices is compacted, so that slots for missing devices are filled with working devices from later slots. This requires the "rd%d" symlinks in sysfs to be updated. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
918f023 NeilBrown 22 August 2007, 21:01:52 UTC md: make sure a re-add after a restart honours bitmap when resyncing Commit 1757128438d41670ded8bc3bc735325cc07dc8f9 was slightly bad. If an array has a write-intent bitmap, and you remove a drive, then readd it, only the changed parts should be resynced. However after the above commit, this only works if the array has not been shut down and restarted. This is because it sets 'fullsync' at little more often than it should. This patch is more careful. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
59d9445 Evgeniy Polyakov 22 August 2007, 21:01:51 UTC w1: fix w1_remove_master_device() searching In case bus master driver provided bogus value as its private data, search can be incorrect. Problem found by Adrian Bunk. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
a89182c Adam Litke 22 August 2007, 21:01:51 UTC Fix VM_FAULT flags conversion for hugetlb It seems a simple mistake was made when converting follow_hugetlb_page() over to the VM_FAULT flags bitmasks (in "mm: fault feedback #2", commit 83c54070ee1a2d05c89793884bea1a03f2851ed4). By using the wrong bitmask, hugetlb_fault() failures are not being recognized. This results in an infinite loop whenever follow_hugetlb_page is involved in a failed fault. Signed-off-by: Adam Litke <agl@us.ibm.com> Acked-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
d4c63b7 Paul Fulghum 22 August 2007, 21:01:50 UTC synclink_gt fix module reference Get module reference on open() by generic HDLC to prevent module from unloading while interface is active. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
1807a1a Siddha, Suresh B 22 August 2007, 21:01:49 UTC slab: skip calling cache_free_alien() when the platform is not numa capable Skip calling cache_free_alien() when the platform is not numa capable. This will avoid cache misses that happen while accessing slabp (which is per page memory reference) to get nodeid. Instead use a global variable to skip the call, which is mostly likely to be present in the cache. This gives a 0.8% performance boost with the database oltp workload on a quad-core SMP platform and by any means the number is not small :) Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
32d2198 Mijo Safradin 22 August 2007, 21:01:48 UTC IPMI: fix warning in ipmi_si_intf.c trivial change: fix warning Signed-off-by: Mijo Safradin <safradin@de.ibm.com> Acked-by: Christian Krafft <krafft@de.ibm.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
f9ee228 Oleg Nesterov 22 August 2007, 21:01:48 UTC signalfd: make it group-wide, fix posix-timers scheduling With this patch any thread can dequeue its own private signals via signalfd, even if it was created by another sub-thread. To do so, we pass "current" to dequeue_signal() if the caller is from the same thread group. This also fixes the scheduling of posix timers broken by the previous patch. If the caller doesn't belong to this thread group, we can't handle __SI_TIMER case properly anyway. Perhaps we should forbid the cross-process signalfd usage and convert ctx->tsk to ctx->sighand. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Roland McGrath <roland@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
834d216 Oleg Nesterov 22 August 2007, 21:01:42 UTC signalfd: fix interaction with posix-timers dequeue_signal: if (__SI_TIMER) { spin_unlock(&tsk->sighand->siglock); do_schedule_next_timer(info); spin_lock(&tsk->sighand->siglock); } Unless tsk == curent, this is absolutely unsafe: nothing prevents tsk from exiting. If signalfd was passed to another process, do_schedule_next_timer() is just wrong. Add yet another "tsk == current" check into dequeue_signal(). This patch fixes an oopsable bug, but breaks the scheduling of posix timers if the shared __SI_TIMER signal was fetched via signalfd attached to another sub-thread. Mostly fixed by the next patch. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Roland McGrath <roland@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
d02479b Oleg Nesterov 22 August 2007, 21:01:37 UTC posix-timers: fix creation race sys_timer_create() sets ->it_process and unlocks ->siglock, then checks tmr->it_sigev_notify to define if get_task_struct() is needed. We already passed ->it_id to the caller, another thread can delete this timer and free its memory in between. As a minimal fix, move this code under ->siglock, sys_timer_delete() takes it too before calling release_posix_timer(). A proper serialization would be to take ->it_lock, we add a partly initialized timer on posix_timers_id, not good. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:46 UTC
179394a Thomas Gleixner 22 August 2007, 21:01:37 UTC posix-timers: fix deletion race timer_delete does: lock_timer(); timer->it_process = NULL; unlock_timer(); release_posix_timer(); timer->it_process is checked in lock_timer() to prevent access to a timer, which is on the way to be deleted, but the check happens after idr_lock is dropped. This allows release_posix_timer() to delete the timer before the lock code can check the timer: CPU 0 CPU 1 lock_timer(); timer->it_process = NULL; unlock_timer(); lock_timer() spin_lock(idr_lock); timer = idr_find(); spin_lock(timer->lock); spin_unlock(idr_lock); release_posix_timer(); spin_lock(idr_lock); idr_remove(timer); spin_unlock(idr_lock); free_timer(timer); if (timer->......) Change the locking to prevent this. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
928923c Geert Uytterhoeven 22 August 2007, 21:01:36 UTC Introduce CONFIG_CHECK_SIGNATURE Introduce CONFIG_CHECK_SIGNATURE to control inclusion of check_signature() and avoid problems on platforms that don't have readb(). Let the few legacy (ISA || PCI || X86) drivers that need check_signature() select CONFIG_CHECK_SIGNATURE. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
2301060 Geert Uytterhoeven 22 August 2007, 21:01:35 UTC m68k/mac: Make mac_hid_mouse_emulate_buttons() declaration visible m68k/mac: Make mac_hid_mouse_emulate_buttons() declaration visible drivers/char/keyboard.c: In function 'kbd_keycode': drivers/char/keyboard.c:1142: error: implicit declaration of function 'mac_hid_mouse_emulate_buttons' The forward declaration of mac_hid_mouse_emulate_buttons() is not visible on m68k because it's hidden in the middle of a big #ifdef block. Move it to <linux/kbd_kern.h>, correct the type of the second parameter, and include <linux/kbd_kern.h> where needed. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
a010866 Geert Uytterhoeven 22 August 2007, 21:01:34 UTC zorro: Make sysfs config attribute read-only zorro: Make the sysfs `config' attribute read-only, as you cannot write to it (there's no .write function neither). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
90638f9 Geert Uytterhoeven 22 August 2007, 21:01:34 UTC m68k: Fix a few hickups in drivers/scsi/Kconfig m68k: Fix a few hickups in drivers/scsi/Kconfig Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
fe6d9da Roman Zippel 22 August 2007, 21:01:33 UTC m68k: Dont include RODATA into text segment Don't include RODATA into text segment as it includes the kallsyms data and can cause spurious link failures (layout differences can change the number of symbols in kallsyms, i.e. when a symbol is equal to _etext it's not included). Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
a5f442b Alan Cox 22 August 2007, 21:01:32 UTC m68k: Enable arbitary speed tty support Add the needed constants and defines to activate the existing code. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
42b3592 Geert Uytterhoeven 22 August 2007, 21:01:32 UTC m68k: Use _AC() instead of #ifdef __ASSEMBLY__ m68k: Use _AC() instead of #ifdef __ASSEMBLY__ hackery when needed, remove hackery when unused. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
0d5e74f Johannes Berg 22 August 2007, 21:01:31 UTC remove dead code in via-pmu68k When suspend is ever implemented for pmu68k it really should follow the generic pm_ops concept and not mirror the platform-specific /dev/pmu device with ioctls on it. Hence, this patch removes the unused code there; should the implementers need it they can look at via-pmu.c and/or the history of the file. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
4088af3 Roman Zippel 22 August 2007, 21:01:31 UTC m68k: Remove unnecessary m68k_memoffset export and init Remove an unnecessary m68k_memoffset export and initialization Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
fb425d0 Geert Uytterhoeven 22 August 2007, 21:01:30 UTC m68k: Kill superfluous extern Kill a superfluous extern declaration Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
4f85589 Geert Uytterhoeven 22 August 2007, 21:01:29 UTC m68k: <asm/page.h> needs <linux/compiler.h> m68k: <asm/page.h> needs <linux/compiler.h> because of __attribute_const__ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
34b4e4a Alan Cox 22 August 2007, 21:01:28 UTC fix NULL pointer dereference in __vm_enough_memory() The new exec code inserts an accounted vma into an mm struct which is not current->mm. The existing memory check code has a hard coded assumption that this does not happen as does the security code. As the correct mm is known we pass the mm to the security method and the helper function. A new security test is added for the case where we need to pass the mm and the existing one is modified to pass current->mm to avoid the need to change large amounts of code. (Thanks to Tobias for fixing rejects and testing) Signed-off-by: Alan Cox <alan@redhat.com> Cc: WU Fengguang <wfg@mail.ustc.edu.cn> Cc: James Morris <jmorris@redhat.com> Cc: Tobias Diedrich <ranma+kernel@tdiedrich.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
afe1ab4 David Brownell 22 August 2007, 21:01:27 UTC correct name for rtc-m41t80 The new rtc-m41t80 driver name doesn't match its module name, which prevents it from properly hotplugging. Since it's new, no platforms yet depend on that name ... so this patch fixes the driver name to match its module name, rather than going the other way around with a MODULE_ALIAS(). NOTE: This sort of bug is a new thing to watch out for with new-style I2C drivers; previously I2C couldn't hotplug. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
c661b07 Andy Whitcroft 22 August 2007, 21:01:26 UTC synchronous lumpy reclaim: wait for page writeback when directly reclaiming contiguous areas Lumpy reclaim works by selecting a lead page from the LRU list and then selecting pages for reclaim from the order-aligned area of pages. In the situation were all pages in that region are inactive and not referenced by any process over time, it works well. In the situation where there is even light load on the system, the pages may not free quickly. Out of a area of 1024 pages, maybe only 950 of them are freed when the allocation attempt occurs because lumpy reclaim returned early. This patch alters the behaviour of direct reclaim for large contiguous blocks. The first attempt to call shrink_page_list() is asynchronous but if it fails, the pages are submitted a second time and the calling process waits for the IO to complete. This may stall allocators waiting for contiguous memory but that should be expected behaviour for high-order users. It is preferable behaviour to potentially queueing unnecessary areas for IO. Note that kswapd will not stall in this fashion. [apw@shadowen.org: update to version 2] [apw@shadowen.org: update to version 3] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
e9187bd Andy Whitcroft 22 August 2007, 21:01:25 UTC synchronous lumpy reclaim: ensure we count pages transitioning inactive via clear_active_flags As pointed out by Mel when reclaim is applied at higher orders a significant amount of IO may be started. As this takes finite time to drain reclaim will consider more areas than ultimatly needed to satisfy the request. This leads to more reclaim than strictly required and reduced success rates. I was able to confirm Mel's test results on systems locally. These show that even under light load the success rates drop off far more than expected. Testing with a modified version of his patch (which follows) I was able to allocate almost all of ZONE_MOVABLE with a near idle system. I ran 5 test passes sequentially following system boot (the system has 29 hugepages in ZONE_MOVABLE): 2.6.23-rc1 11 8 6 7 7 sync_lumpy 28 28 29 29 26 These show that although hugely better than the near 0% success normally expected we can only allocate about a 1/4 of the zone. Using synchronous reclaim for these allocations we get close to 100% as expected. I have also run our standard high order tests and these show no regressions in allocation success rates at rest, and some significant improvements under load. This patch: We are transitioning pages from active to inactive in clear_active_flags, those need counting as PGDEACTIVATE vm events. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:45 UTC
0cd82ef Yoshinori Sato 22 August 2007, 21:01:24 UTC h8300: missing include Build error fix. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
efbee7f Michael Neuling 22 August 2007, 23:31:42 UTC Documentation: fix getdelays.c printf bug Commit b663a79c191508f27cd885224b592a878c0ba0f6 ("taskstats: add context-switch counters") incorrectly removed a comma from a printf statement. This causes corruption in the output printing or a seg fault. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
8b7f071 Andrew Morton 22 August 2007, 21:01:20 UTC free_irq(): fix DEBUG_SHIRQ handling If we're going to run the handler from free_irq() then we must do it with local irq's disabled. Otherwise lockdep complains that the handler is taking irq-safe spinlocks in a non-irq-safe fashion. Cc: Ingo Molnar <mingo@elte.hu> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
436bbd4 Christian Schmidt 22 August 2007, 21:01:19 UTC Add blacklisting capability to serial_pci to avoid misdetection of serial ports The serial_pci driver tries to guess serial ports on unknown devices based on the PCI class (modem or serial). On certain softmodems (AC'97 modems) this can lead to the recognition of non-existing serial ports. This patch adds a blacklist of PCI IDs that are to be ignored by the driver. [akpm@linux-foundation.org: cleanups] Signed-off-by: Christian Schmidt <schmidt@digadd.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Cc: Yinghai Lu <yinghai.lu@sun.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
ad4c2aa Corey Minyard 22 August 2007, 21:01:18 UTC Serial 8250: handle saving the clear-on-read bits from the LSR and MSR Reading the LSR clears the break, parity, frame error, and overrun bits in the 8250 chip, but these are not being saved in all places that read the LSR. Same goes for the MSR delta bits. Save the LSR bits off whenever the lsr is read so they can be handled later in the receive routine. Save the MSR bits to be handled in the modem status routine. Also, clear the stored bits and clear the interrupt registers before enabling interrupts, to avoid handling old values of the stored bits in the interrupt routines. [akpm@linux-foundation.org: clean up pre-existing code] Signed-off-by: Corey Minyard <minyard@acm.org> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Cc: Yinghai Lu <yinghai.lu@sun.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
9999996 Atsushi Nemoto 22 August 2007, 21:01:15 UTC serial_txx9: Fix modem control line handling This chip does not have modem control lines. Return TIOCM_CAR and TIOCM_DSR always on get_mctrl() and ajust some bits in termios cflag. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 23 August 2007, 02:52:44 UTC
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