- 27 Mar, 2007 35 commits
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git://kvm.qumranet.com/home/avi/kvmLinus Torvalds authored
* git://kvm.qumranet.com/home/avi/kvm: KVM: always reload segment selectors KVM: Prevent system selectors leaking into guest on real->protected mode transition on vmx
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Rafael J. Wysocki authored
This reverts commit 94985134 and insteads removes the WARN_ON() that caused that commit in the first place. The problem is that we call disable_nonboot_cpus() in swsusp before powering down the system in order to avoid triggering the WARN_ON() in arch/x86_64/kernel/acpi/sleep.c:init_low_mapping() and this doesn't work well on Thomas' system. So instead, remove the WARN_ON() in arch/x86_64/kernel/acpi/sleep.c: init_low_mapping(), which triggers every time during the suspend to disk in the platform mode, as the potential problem it is related to doesn't seem to occur in practice. [ I think we might want to disallow the case of multiple users of that mm, or something. Normally, playing with the current process page tables on the current CPU should be fine as long as we don't have other threads using those tables at the same time.. Anyway, not pretty, but better than the warning or the lockup - Linus ] Signed-off-by:
Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Thomas Gleixner authored
The clockevents / tick management code expects an error value, when the event is already expired. hpet_next_event() returns 1 in that case. Fix it to return the proper -ETIME error code. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds authored
* 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: Export __splice_from_pipe() 2/2 splice: dont readpage 1/2 splice: dont steal make elv_register() output atomic block: blk_max_pfn is somtimes wrong
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Mika Kukkonen authored
Without attached patch against current -git I get following with !PROC_SYSCTL (with EMBEDDED and PROC_FS set): CC init/version.o LD init/built-in.o LD vmlinux fs/built-in.o: In function `do_proc_sys_lookup': proc_sysctl.c:(.text+0x26583): undefined reference to `sysctl_head_next' fs/built-in.o: In function `proc_sys_revalidate': proc_sysctl.c:(.text+0x265bb): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_readdir': proc_sysctl.c:(.text+0x26720): undefined reference to `sysctl_head_next' proc_sysctl.c:(.text+0x267d8): undefined reference to `sysctl_head_finish' proc_sysctl.c:(.text+0x268e7): undefined reference to `sysctl_head_next' proc_sysctl.c:(.text+0x26910): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_write': proc_sysctl.c:(.text+0x2695d): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x2699c): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_read': proc_sysctl.c:(.text+0x269e9): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x26a25): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_permission': proc_sysctl.c:(.text+0x26ad1): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x26adb): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_lookup': proc_sysctl.c:(.text+0x26b39): undefined reference to `sysctl_head_finish' make: *** [vmlinux] Virhe 1 All those functions are in fs/proc/proc_sysctl.c, which has no CONFIG_ #define's in it, so the patch makes the compilation of that file to depend on CONFIG_PROC_SYSCTL (the simplest choice). Acked-by:"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Markus Lidel authored
Because i don't have much time lately and my responses are pretty slow it's probably best to remove me from MAINTAINERS to give someone else the chance to jump in. Signed-off-by:
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Serge E. Hallyn authored
When CONFIG_IPC_NS=n, clone(CLONE_NEWIPC) claims success, but did not actually clone a new IPC namespace. Fix this to return -EINVAL so the caller knows his request was denied. Signed-off-by:
Serge E. Hallyn <serue@us.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
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Vasily Averin authored
I2O subsystem has been broken in mainstream several months ago (after 2.6.18). Commit 4aff5e23 from Jens Axboe split struct request ->flags into two parts: cmd_type and cmd_flags. In i2o layer this patch has replaced flag REQ_SPECIAL by the according cmd_type. However i2o has used REQ_SPECIAL not as command type but as driver-specific flag for the debug purposes. As result all i2o requests have type "special" now, are not processed to the hardware and fail with I/O error: i2o/hda:<3>Buffer I/O error on device i2o/hda, logical block 0 Buffer I/O error on device i2o/hda, logical block 0 Buffer I/O error on device i2o/hda, logical block 0 unable to read partition table block-osm: device added (TID: 207): i2o/hda The following patch removes the extra debug checks without any drawbacks and restores the normal driver's work. Signed-off-by:
Vasily Averin <vvs@sw.ru> Acked-by:
Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: <stable@kernel.org> Signed-off-by:
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Yoichi Yuasa authored
drivers/pcmcia/au1000_generic.c: In function 'au1x00_pcmcia_socket_probe': drivers/pcmcia/au1000_generic.c:375: error: 'struct device' has no member named 'dev' Signed-off-by:
Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: Greg KH <greg@kroah.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by:
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Adrian Bunk authored
WARNING: drivers/built-in.o - Section mismatch: reference to .init.text:eisa_root_register from .text between 'pci_eisa_init' (at offset 0xabf670) and 'virtual_eisa_release' AFAIK a PCI to EISA bridge isn't anything hotpluggable, so pci_eisa_init() can become __init. Signed-off-by:
Adrian Bunk <bunk@stusta.de> Cc: Greg KH <greg@kroah.com> Signed-off-by:
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john stultz authored
I've been seeing some odd NTP behavior recently on a few boxes and finally narrowed it down to time_offset overflowing when converted to SHIFT_UPDATE units (which was a side effect from my HZfreeNTP patch). This patch converts time_offset from a long to a s64 which resolves the issue. [tglx@linutronix.de: signedness fixes] Signed-off-by:
John Stultz <johnstul@us.ibm.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: john stultz <johnstul@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Jeff Dike authored
This patch uses MAX_REG_NR consistently to refer to the register file size. FRAME_SIZE isn't sufficient because on x86_64, it is smaller than the ptrace register file size. MAX_REG_NR was introduced as a consistent way to get the number of registers, but wasn't used everywhere it should be. When this causes a problem, it makes PTRACE_SETREGS fail on x86_64 because of a corrupted segment register value in the known-good register file. The patch also adds a register dump at that point in case there are any future problems here. Signed-off-by:
Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: <stable@kernel.org> Signed-off-by:
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Jeff Dike authored
During a static link, ld has started putting a .note section in the .uml.setup.init section. This has the result that the UML setups begin with 32 bytes of garbage and UML crashes immediately on boot. This patch creates a specific .note section for ld to drop this stuff into. Signed-off-by:
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Adrian Bunk authored
WARNING: drivers/built-in.o - Section mismatch: reference to .init.text:spi_register_master from .text between 'spi_bitbang_start' (at offset 0x84e11a) and 'bitbang_work' WARNING: drivers/built-in.o - Section mismatch: reference to .init.text:spi_alloc_master from .text between 'butterfly_attach' (at offset 0x84e681) and 'at25_remove' WARNING: drivers/built-in.o - Section mismatch: reference to .init.text:spi_new_device from .text between 'butterfly_attach' (at offset 0x84e7e4) and 'at25_remove' Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Serge E. Hallyn authored
When CONFIG_UTS_NS=n, clone(CLONE_NEWUTS) quietly refuses. So correctly does not unshare a new uts namespace, but also does not return -EINVAL. Fix this to return -EINVAL so the caller knows his request was denied. Signed-off-by:
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Alan Cox authored
Its now used.. because we added the new definitions so enabled all the goodies on i386 Signed-off-by:
Alan Cox <alan@redhat.com> Signed-off-by:
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Jeff Dike authored
UML/x86_64 needs the same packing of struct epoll_event as x86_64. Signed-off-by:
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Jiri Kosina authored
isar_bh() bh handler calls another (compatible) bh handler - BChannel_bh() - but passes struct BCState* instead of struct work_struct*, which seems wrong. Cc: Karsten Keil <kkeil@suse.de> Signed-off-by:
Jiri Kosina <jkosina@suse.cz> Signed-off-by:
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john stultz authored
On Bob's machine clocksource is selecting PIT over the ACPI PM timer, because he has the PIIX4 bug. That bug drops the ACPI PM timers rating to the same as the PIT, so that's why you're getting the PIT. Realistically, the PIT is much slower then even the triple read ACPI PM, so the de-ranking code is probably dropping it too far. So don't drop ACPI PM quite so low if we see the PIIX4 bug. Signed-off-by:
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Daniel Drake authored
Commit d720bc4b partially removed a private implementation of baud speed decoding. However it doesn't seem to be complete: after the speed is decoded, it is still being used as an index to a local speed table (array overrun, no doubt). This was found by Graham Murray who noticed it caused a 2.6.19 regression with the SX driver: https://bugs.gentoo.org/170554Signed-off-by:
Daniel Drake <dsd@gentoo.org> Acked-by:
Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <stable@kernel.org> Signed-off-by:
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NeilBrown authored
... still not sure why we need this .... Signed-off-by:
Neil Brown <neilb@suse.de> Signed-off-by:
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NeilBrown authored
If this mddev and queue got reused for another array that doesn't register a congested_fn, this function would get called incorretly. Signed-off-by:
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NeilBrown authored
All that is missing the the function pointers in raid4_pers. Signed-off-by:
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J. Bruce Fields authored
This cancel_delayed_work call is called from a function that is only called from a piece of code that immediate follows a cancel and destruction of the workqueue, so it's clearly a mistake. Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by:
"J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by:
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Bruce Fields authored
The reused clientid here is a more of a problem for the client than the server, and the client can report the problem itself if it's serious. Signed-off-by:
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Bruce Fields authored
A regression introduced in the last set of acl patches removed the INHERIT_ONLY flag from aces derived from the posix acl. Fix. Signed-off-by:
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NeilBrown authored
->readdir passes lofft_t offsets (used as nfs cookies) to nfs3svc_encode_entry{,_plus}, but when they pass it on to encode_entry it becomes an 'off_t', which isn't good. So filesystems that returned 64bit offsets would lose. Signed-off-by: -
Venki Pallipadi authored
Ingo reported it on lkml in the thread "2.6.21-rc5: maxcpus=1 crash in cpufreq: kernel BUG at drivers/cpufreq/cpufreq.c:82!" This check added to remove_dev is symmetric to one in add_dev and handles callbacks for offline cpus cleanly. Signed-off-by:
Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Ingo Molnar authored
failed VM entry on VMX might still change %fs or %gs, thus make sure that KVM always reloads the segment selectors. This is crutial on both x86 and x86_64: x86 has __KERNEL_PDA in %fs on which things like 'current' depends and x86_64 has 0 there and needs MSR_GS_BASE to work. Signed-off-by: -
Avi Kivity authored
Intel virtualization extensions do not support virtualizing real mode. So kvm uses virtualized vm86 mode to run real mode code. Unfortunately, this virtualized vm86 mode does not support the so called "big real" mode, where the segment selector and base do not agree with each other according to the real mode rules (base == selector << 4). To work around this, kvm checks whether a selector/base pair violates the virtualized vm86 rules, and if so, forces it into conformance. On a transition back to protected mode, if we see that the guest did not touch a forced segment, we restore it back to the original protected mode value. This pile of hacks breaks down if the gdt has changed in real mode, as it can cause a segment selector to point to a system descriptor instead of a normal data segment. In fact, this happens with the Windows bootloader and the qemu acpi bios, where a protected mode memcpy routine issues an innocent 'pop %es' and traps on an attempt to load a system descriptor. "Fix" by checking if the to-be-restored selector points at a system segment, and if so, coercing it into a normal data segment. The long term solution, of course, is to abandon vm86 mode and use emulation for big real mode. Signed-off-by:Avi Kivity <avi@qumranet.com>
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Mark Fasheh authored
Ocfs2 wants to implement it's own splice write actor so that it can better manage cluster / page locks. This lets us re-use the rest of splice write while only providing our own code where it's actually important. Signed-off-by:
Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by:
Jens Axboe <jens.axboe@oracle.com>
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Nick Piggin authored
Splice does not need to readpage to bring the page uptodate before writing to it, because prepare_write will take care of that for us. Splice is also wrong to SetPageUptodate before the page is actually uptodate. This results in the old uninitialised memory leak. This gets fixed as a matter of course when removing the readpage logic. Signed-off-by:
Nick Piggin <npiggin@suse.de> Signed-off-by:
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Nick Piggin authored
Stealing pages with splice is problematic because we cannot just insert an uptodate page into the pagecache and hope the filesystem can take care of it later. We also cannot just ClearPageUptodate, then hope prepare_write does not write anything into the page, because I don't think prepare_write gives that guarantee. Remove support for SPLICE_F_MOVE for now. If we really want to bring it back, we might be able to do so with a the new filesystem buffered write aops APIs I'm working on. If we really don't want to bring it back, then we should decide that sooner rather than later, and remove the flag and all the stealing infrastructure before anybody starts using it. Signed-off-by:
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Thibaut VARENE authored
Booting 2.6.21-rc3-g45592145 I noticed the following on one of my machines in the bootlog: io scheduler noop registered<6>Time: jiffies clocksource has been installed. io scheduler deadline registered (default) Looking at block/elevator.c, it appears that elv_register() uses two consecutive printks in a non-atomic way, leading to the above glitch. The attached trivial patch fixes this issue, by using a single printk. Signed-off-by:
Thibaut VARENE <varenet@parisc-linux.org> Signed-off-by:
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Vasily Tarasov authored
There is a small problem in handling page bounce. At the moment blk_max_pfn equals max_pfn, which is in fact not maximum possible _number_ of a page frame, but the _amount_ of page frames. For example for the 32bit x86 node with 4Gb RAM, max_pfn = 0x100000, but not 0xFFFF. request_queue structure has a member q->bounce_pfn and queue needs bounce pages for the pages _above_ this limit. This routine is handled by blk_queue_bounce(), where the following check is produced: if (q->bounce_pfn >= blk_max_pfn) return; Assume, that a driver has set q->bounce_pfn to 0xFFFF, but blk_max_pfn equals 0x10000. In such situation the check above fails and for each bio we always fall down for iterating over pages tied to the bio. I want to notice, that for quite a big range of device drivers (ide, md, ...) such problem doesn't happen because they use BLK_BOUNCE_ANY for bounce_pfn. BLK_BOUNCE_ANY is defined as blk_max_pfn << PAGE_SHIFT, and then the check above doesn't fail. But for other drivers, which obtain reuired value from drivers, it fails. For example sata_nv uses ATA_DMA_MASK or dev->dma_mask. I propose to use (max_pfn - 1) for blk_max_pfn. And the same for blk_max_low_pfn. The patch also cleanses some checks related with bounce_pfn. Signed-off-by:
Vasily Tarasov <vtaras@openvz.org> Signed-off-by:
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- 26 Mar, 2007 5 commits
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [SUNGEM]: Fix MAC address setting when interface is up. [IPV4] fib_trie: Document locking. [NET]: Correct accept(2) recovery after sock_attach_fd() [PPP]: Don't leak an sk_buff on interface destruction. [NET_SCHED]: Fix ingress locking [NET_SCHED]: cls_basic: fix NULL pointer dereference [DCCP]: make dccp_write_xmit_timer() static again [TG3]: Update version and reldate. [TG3]: Exit irq handler during chip reset. [TG3]: Eliminate the unused TG3_FLAG_SPLIT_MODE flag. [IPV6]: Fix routing round-robin locking. [DECNet] fib: Fix out of bound access of dn_fib_props[] [IPv4] fib: Fix out of bound access of fib_props[] [NET] AX.25 Kconfig and docs updates and fixes [NET]: Fix neighbour destructor handling. [NET]: Fix fib_rules compatibility breakage [SCTP]: Update SCTP Maintainers entry [NET]: remove unused header file: drivers/net/wan/lmc/lmc_media.h
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git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds authored
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] zcrypt: Fix ap_poll_requests counter in lost requests error path. [S390] zcrypt: Fix possible dead lock in AP bus module. [S390] cio: Device status validity. [S390] kprobes: Align probe address. [S390] Fix TCP/UDP pseudo header checksum computation. [S390] dasd: Work around gcc bug.
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Ruben Vandeginste authored
This patch implements set_mac_address for the sungem driver. This allows changing the mac address of the interface, even when the interface is up. Signed-off-by:
Ruben Vandeginste <snowbender@gmail.com> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: USB: fix usb-serial/ftdi build warning USB: fix usb-serial/generic build warning USB: another entry for the quirk list USB: remove duplicated device id in airprime driver USB: omap_udc: workaround dma_free_coherent() bogosity UHCI: Fix problem caused by lack of terminating QH
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Linus Torvalds authored
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Fix warning message in PCIE port driver PCI: Stop unhiding the SMBus on Toshiba laptops PCI: Fix up PCI power management doc pci: set pci=bfsort for PowerEdge R900
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