Avi Kivity [Mon, 26 Feb 2007 14:29:43 +0000 (16:29 +0200)]
KVM: Fix bogus failure in kvm.ko module initialization
A bogus 'return r' can cause an otherwise successful module load to fail.
This both denies users the use of kvm, and it also denies them the use of
their machine, as it leaves a filesystem registered with its callbacks
pointing into now-freed module memory.
Fix by returning a zero like a good module.
Thanks to Richard Lucassen <mailinglists@lucassen.org> (?) for reporting
the problem and for providing access to a machine which exhibited it.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Uri Lublin [Thu, 22 Feb 2007 15:37:32 +0000 (17:37 +0200)]
KVM: Remove write access permissions when dirty-page-logging is enabled
Enabling dirty page logging is done using KVM_SET_MEMORY_REGION ioctl.
If the memory region already exists, we need to remove write accesses,
so writes will be caught, and dirty pages will be logged.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Uri Lublin [Thu, 22 Feb 2007 15:15:33 +0000 (17:15 +0200)]
kvm: move do_remove_write_access() up
To be called from kvm_vm_ioctl_set_memory_region()
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Uri Lublin [Thu, 22 Feb 2007 14:43:09 +0000 (16:43 +0200)]
KVM: Fix dirty page log bitmap size/access calculation
Since dirty_bitmap is an unsigned long array, the alignment and size need
to take that into account.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Uri Lublin [Wed, 21 Feb 2007 16:25:21 +0000 (18:25 +0200)]
KVM: Add missing calls to mark_page_dirty()
A few places where we modify guest memory fail to call mark_page_dirty(),
causing live migration to fail. This adds the missing calls.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Wed, 21 Feb 2007 17:47:40 +0000 (19:47 +0200)]
KVM: Bump API version
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Wed, 21 Feb 2007 16:04:26 +0000 (18:04 +0200)]
KVM: Per-vcpu inodes
Allocate a distinct inode for every vcpu in a VM. This has the following
benefits:
- the filp cachelines are no longer bounced when f_count is incremented on
every ioctl()
- the API and internal code are distinctly clearer; for example, on the
KVM_GET_REGS ioctl, there is no need to copy the vcpu number from
userspace and then copy the registers back; the vcpu identity is derived
from the fd used to make the call
Right now the performance benefits are completely theoretical since (a) we
don't support more than one vcpu per VM and (b) virtualization hardware
inefficiencies completely everwhelm any cacheline bouncing effects. But
both of these will change, and we need to prepare the API today.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Tue, 20 Feb 2007 16:41:05 +0000 (18:41 +0200)]
KVM: Move kvm_vm_ioctl_create_vcpu() around
In preparation of some hacking.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Tue, 20 Feb 2007 16:27:58 +0000 (18:27 +0200)]
KVM: Rename some kvm_dev_ioctl_*() functions to kvm_vm_ioctl_*()
This reflects the changed scope, from device-wide to single vm (previously
every device open created a virtual machine).
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Wed, 21 Feb 2007 17:28:04 +0000 (19:28 +0200)]
KVM: Create an inode per virtual machine
This avoids having filp->f_op and the corresponding inode->i_fop different,
which is a little unorthodox.
The ioctl list is split into two: global kvm ioctls and per-vm ioctls. A new
ioctl, KVM_CREATE_VM, is used to create VMs and return the VM fd.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Tue, 20 Feb 2007 12:07:37 +0000 (14:07 +0200)]
KVM: Add internal filesystem for generating inodes
The kvmfs inodes will represent virtual machines and vcpus, as necessary,
reducing cacheline bouncing due to inodes and filps being shared.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:48 +0000 (14:37 +0200)]
KVM: More 0 -> NULL conversions
Signed-off-by: Avi Kivity <avi@qumranet.com>
Joerg Roedel [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: SVM: intercept SMI to handle it at host level
This patch changes the SVM code to intercept SMIs and handle it
outside the guest.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: svm: init cr0 with the wp bit set
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: Wire up hypercall handlers to a central arch-independent location
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: Add hypercall host support for svm
Signed-off-by: Avi Kivity <avi@qumranet.com>
Ingo Molnar [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: Add host hypercall support for vmx
Signed-off-by: Avi Kivity <avi@qumranet.com>
Ingo Molnar [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: add MSR based hypercall API
This adds a special MSR based hypercall API to KVM. This is to be
used by paravirtual kernels and virtual drivers.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Markus Rechberger [Mon, 19 Feb 2007 12:37:47 +0000 (14:37 +0200)]
KVM: Use page_private()/set_page_private() apis
Besides using an established api, this allows using kvm in older kernels.
Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Ahmed S. Darwish [Mon, 19 Feb 2007 12:37:46 +0000 (14:37 +0200)]
KVM: Use ARRAY_SIZE macro instead of manual calculation.
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Dor Laor <dor.laor@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Joerg Roedel [Mon, 19 Feb 2007 12:37:46 +0000 (14:37 +0200)]
KVM: vmx: hack set_cr0_no_modeswitch() to actually do modeswitch
The whole thing is rotten, but this allows vmx to boot with the guest reboot
fix.
Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:46 +0000 (14:37 +0200)]
KVM: Cosmetics
Signed-off-by: Avi Kivity <avi@qumranet.com>
Jeremy Katz [Mon, 19 Feb 2007 12:37:46 +0000 (14:37 +0200)]
KVM: Move virtualization deactivation from CPU_DEAD state to CPU_DOWN_PREPARE
This gives it more chances of surviving suspend.
Signed-off-by: Jeremy Katz <katzj@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
Avi Kivity [Mon, 19 Feb 2007 12:37:46 +0000 (14:37 +0200)]
KVM: mmu: add missing dirty page tracking cases
We fail to mark a page dirty in three cases:
- setting the accessed bit in a pte
- setting the dirty bit in a pte
- emulating a write into a pagetable
This fix adds the missing cases.
Signed-off-by: Avi Kivity <avi@qumranet.com>
Linus Torvalds [Sat, 3 Mar 2007 01:58:52 +0000 (17:58 -0800)]
Merge branch 'upstream-linus' of /linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: add CONFIG_PM to libata core layer
libata: add missing CONFIG_PM in LLDs
libata: add missing PM callbacks
pata_qdi: Fix initialisation
[libata] pata_cmd64x: fix driver description in comments
[libata] pata_{legacy,sc1200,sl82c105}: add missing hooks
[libata] change master/slave IDENTIFY order
libata-core: Fix simplex handling
Jeff Garzik [Sat, 3 Mar 2007 01:21:56 +0000 (20:21 -0500)]
[netdrvr] tulip, de2104x: fix typo: s/__sparc_/__sparc__/
Noticed by Doug Nazar (via David Miller).
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Dale Farnsworth [Thu, 1 Mar 2007 23:31:48 +0000 (16:31 -0700)]
mv643xx_eth: move mac_addr inside mv643xx_eth_platform_data
The information contained within platform_data should be self-contained.
Replace the pointer to a MAC address with the actual MAC address in
struct mv643xx_eth_platform_data.
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Dave Jones [Wed, 28 Feb 2007 20:41:39 +0000 (15:41 -0500)]
Fix mv643xx_eth compilation.
Commit
908b637fe793165b6aecdc875cdca67c4959a1ad removed ETH_DMA_ALIGN
but missed a usage of it in a macro, which broke the build.
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Ron Mercer [Thu, 1 Mar 2007 00:42:17 +0000 (16:42 -0800)]
qla3xxx: bugfix for line omitted in previous patch.
This missing line caused transmit errors on the Qlogic 4032 chip.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linsys Contractor Mithlesh Thukral [Wed, 28 Feb 2007 13:16:40 +0000 (05:16 -0800)]
NetXen: Fix second rmmod failure observed on PowerPC machines.
Signed-off by: Mithlesh Thukral <mithlesh@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linsys Contractor Mithlesh Thukral [Wed, 28 Feb 2007 13:14:07 +0000 (05:14 -0800)]
NetXen: Updates, removal of unsupported features and minor bug fixes.
Signed-off-by: Mithlesh Thukral <mithlesh@netxen.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Divy Le Ray [Wed, 28 Feb 2007 03:28:14 +0000 (19:28 -0800)]
cxgb3 - Tag driver version
This patch adds a "-ko" tag to the driver version.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Brice Goglin [Tue, 27 Feb 2007 16:18:40 +0000 (17:18 +0100)]
myri10ge: fix copyright and license
Fix copyright and license ("regents" should not have ever been used).
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Ralf Baechle [Tue, 27 Feb 2007 18:15:01 +0000 (18:15 +0000)]
jmr3927: do not call tc35815_killall().
No need to stop tc35815 before resetting the board. This fixes the
build of tc35815 as a module. This also means there is no caller of
tc35815_killall left, so remove that function also.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Sat, 3 Mar 2007 00:40:24 +0000 (19:40 -0500)]
Merge branch 'upstream-fixes' of git://git./linux/kernel/git/linville/wireless-2.6 into upstream-fixes
Tejun Heo [Fri, 2 Mar 2007 08:32:47 +0000 (17:32 +0900)]
libata: add CONFIG_PM to libata core layer
Conditionalize all PM related stuff in libata core layer using
CONFIG_PM.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Fri, 2 Mar 2007 08:31:26 +0000 (17:31 +0900)]
libata: add missing CONFIG_PM in LLDs
Add missing #ifdef CONFIG_PM conditionals around all PM related parts
in libata LLDs.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Fri, 2 Mar 2007 08:30:01 +0000 (17:30 +0900)]
libata: add missing PM callbacks
Some LLDs were missing scsi device PM callbacks while having host/port
suspend support. Add missing ones.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
David S. Miller [Fri, 2 Mar 2007 02:30:08 +0000 (18:30 -0800)]
[AOE]: Add get_unaligned() calls where needed.
Based upon a report by Andrew Walrond.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Mar 2007 02:29:14 +0000 (18:29 -0800)]
[RADEON]: Fix blanking return value.
If you'll recall, over a year ago, I pointed out that the current
Radeon driver erroneously returns -EINVAL for valid blanking codes,
here is a link to that thread:
http://lkml.org/lkml/2006/1/28/6
No other driver does this, and it confuses the X server into thinking
that the device does not support blanking properly.
I looked again and there is simply no reason for the Radeon driver to
return -EINVAL for FB_BLANK_NORMAL. It claims it wants to do this in
order to convince fbcon to blank in software, right here:
if (fb_blank(info, blank))
fbcon_generic_blank(vc, info, blank);
to software blank the screen. But it only causes that to happen
in the FB_BLANK_NORMAL case.
That makes no sense because the Radeon code does this:
val |= CRTC_DISPLAY_DIS;
in the FB_BLANK_NORMAL case so should be blanking the hardware, and
there is therefore no reason to SW blank by returning -EINVAL.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Antonino Daplas <adaplas@gmail.com>
David S. Miller [Fri, 2 Mar 2007 02:10:25 +0000 (18:10 -0800)]
[SPARC]: Provide 'get_property()' alias for of_get_property().
Another powerpc compatibility item, this will allow us to share
more code with them.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Mar 2007 02:09:18 +0000 (18:09 -0800)]
[SPARC]: Provide pci_device_to_OF_node() just like powerpc.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 2 Mar 2007 02:08:05 +0000 (18:08 -0800)]
[SPARC]: Handle unresolvable resources better in of_device.c
Just leave them as zero if we couldn't calculate it.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 1 Mar 2007 07:20:12 +0000 (23:20 -0800)]
[SPARC]: Fix bus handling in build_device_resources().
We mistakedly modify 'bus' in the innermost loop. What
should happen is that at each register index iteration,
we start with the same 'bus'.
So preserve it's value at the top level, and use a loop
local variable 'dbus' for iteration.
This bug causes registers other than the first to be
decoded improperly.
Signed-off-by: David S. Miller <davem@davemloft.net>
Alan Cox [Fri, 2 Mar 2007 14:56:35 +0000 (14:56 +0000)]
pata_qdi: Fix initialisation
The QDI init code contains some bugs which mean it only works if you have
a test setup that causes both a successful and failed probe. Fix this
Found by Philip Guo
(Who found it working on code analysis tools not running VLB IDE
controllers)
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Fri, 2 Mar 2007 23:17:22 +0000 (18:17 -0500)]
[libata] pata_cmd64x: fix driver description in comments
Trivial comment fix, taken out of a larger Alan Cox patch.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Fri, 2 Mar 2007 23:09:05 +0000 (18:09 -0500)]
[libata] pata_{legacy,sc1200,sl82c105}: add missing hooks
Alan Cox noticed several hooks in pata_* drivers were missing, when
he authored his ->cable_detect hook patches. This patch extracts
just those fixes from Alan's patches, adding the necessary hooks
(usually ->freeze, ->thaw, and ->post_internal_cmd) to the drivers.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Jeff Garzik [Fri, 2 Mar 2007 22:47:28 +0000 (17:47 -0500)]
[libata] change master/slave IDENTIFY order
2.6.21-rc has horrible problems with libata and PATA cable types (and
thus speeds). This occurs because Tejun fixed a pile of other bugs and
we now do cable detect enforcement for drive side detection properly.
Unfortunately we don't do the process around cable detection right. Tejun
identified the problem and pointed to the right Annex in the spec, this patch
implements the needed changes.
The basic requirement is that we have to identify the slave before the
master.
The patch switches the identify order so that we can do the drive side
detection correctly.
[NOTE: patch and description extracted from a larger work written
and signed-off-by Alan Cox]
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Alan [Thu, 1 Mar 2007 17:36:46 +0000 (17:36 +0000)]
libata-core: Fix simplex handling
The initial simplex handling code is fooled if you suspend and resume.
This also causes problems with some single channel controllers which
claim to be simplex.
The fix is fairly simple, instead of keeping a flag to remember if we
gave away the simplex channel we remember the actual owner. As the owner
is always part of the host_set we don't even need a refcount.
Knowing the owner also means we can reassign simplex DMA channels in
future hotplug code etc if we need to
Signed-off-by: Alan Cox <alan@redhat.com>
(and a signed-off for the patch I sent before while I remember)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Linus Torvalds [Fri, 2 Mar 2007 03:48:21 +0000 (19:48 -0800)]
Merge branch 'upstream-linus' of /linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ahci: improve spurious SDB FIS handling
ahci/pata_jmicron: match class not function number
jmicron ATA: reimplement jmicron ATA quirk
pata_jmicron: drop unnecessary device programming in [re]init
libata: blacklist FUJITSU MHT2060BH for NCQ
sata_sil24: kill unused local variable idx in sil24_fill_sg()
libata: clear drvdata in ata_host_release(), take#2
Linus Torvalds [Fri, 2 Mar 2007 01:30:51 +0000 (17:30 -0800)]
Merge branch 'for-linus' of /linux/kernel/git/jikos/hid
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid:
HID: fix Logitech DiNovo Edge touchwheel and Logic3 /SpectraVideo middle button
HID: add git tree information to MAINTAINERS
HID: fix broken Logitech S510 keyboard report descriptor; make extra keys work
HID: fix possible double-free on error path in hid parser
HID: hid-debug.c should #include <linux/hid-debug.h>
HID: fix bug in zeroing the last field byte in output reports
USB HID: use CONFIG_HID_DEBUG for outputting report descriptor
USB HID: Fix USB vendor and product IDs endianness for USB HID devices
Linus Torvalds [Fri, 2 Mar 2007 01:28:31 +0000 (17:28 -0800)]
Merge /pub/scm/linux/kernel/git/davem/sparc-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Fix parport_pc build.
[SPARC64]: Update defconfig.
Linus Torvalds [Fri, 2 Mar 2007 01:27:01 +0000 (17:27 -0800)]
Merge /pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[TCP]: Fix minisock tcp_create_openreq_child() typo.
[TCP]: Document several sysctls.
[NET]: Fix kfree(skb)
[NET]: Handle disabled preemption in gfp_any()
[BRIDGE]: Fix locking of set path cost.
[IPV6]: /proc/net/anycast6 unbalanced inet6_dev refcnt
[IPX]: Remove ancient changelog
[IPX]: Remove outdated information from Kconfig
[NET]: Revert socket.h/stat.h ifdef hacks.
[IPV6]: anycast refcnt fix
[XFRM] xfrm_user: Fix return values of xfrm_add_sa_expire.
Linus Torvalds [Fri, 2 Mar 2007 01:25:23 +0000 (17:25 -0800)]
Merge /pub/scm/linux/kernel/git/mchehab/v4l-dvb
* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
V4L/DVB (5305): Mark VIDIOC_DBG_S/G_REGISTER as experimental
V4L/DVB (5271): Add VIDIOC_TRY_ENCODER_CMD and VIDIOC_ENCODER_CMD ioctls.
V4L/DVB (5270): Add VIDIOC_G_ENC_INDEX ioctl
V4L/DVB (5276): Cxusb: fix firmware patch for big endian systems
V4L/DVB (5258): Cafe_ccic: fix compiler warning
V4L/DVB (5295): Digitv: open nxt6000 i2c_gate for TDED4 tuner handling
V4L/DVB (5304): Improve chip matching in v4l2_register
V4L/DVB (5255): Fix cx25840 firmware loading.
Ralf Baechle [Thu, 1 Mar 2007 12:40:21 +0000 (12:40 +0000)]
[PATCH] Fix sysfs build breakage if !CONFIG_SYSFS
B0rkage introduced by
dfa87c824a9a5430008acd1ed2e8111ed164fcbe.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Tue, 27 Feb 2007 04:24:19 +0000 (13:24 +0900)]
ahci: improve spurious SDB FIS handling
Spurious SDB FIS during NCQ might not contain spurious completions.
It could be spurious TF update or invalid async notification. Treat
as HSM violation iff a spurious SDB FIS contains spurious completions;
otherwise, just whine once about it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Mon, 26 Feb 2007 11:24:03 +0000 (20:24 +0900)]
ahci/pata_jmicron: match class not function number
Make jmiron_ata quirk update pdev->class after programming the device
and update ahci and pata_jmicron such that they match class code
instead of checking function number manually. For ahci, it matches
for vendor and class. For pata_jmicron, it matches vendor, device and
class as IDE class isn't as well defined as AHCI class.
This makes jmicron device matching more conventional and script
friendly.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Mon, 26 Feb 2007 11:16:13 +0000 (20:16 +0900)]
jmicron ATA: reimplement jmicron ATA quirk
Reimplement jmicron ATA quirk.
* renamed to quirk_jmicron_ata()
* quirk is invoked only for the affected controllers
* programming is stricter. e.g. conf5 bit24 is cleared if
unnecessary.
* code factored for readability
* JMB360 and JMB368 are programmed into proper mode
Verified on JMB360, 363 and 368.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Mon, 26 Feb 2007 11:09:02 +0000 (20:09 +0900)]
pata_jmicron: drop unnecessary device programming in [re]init
Channel redirect and AHCI mode enable programmings are done via PCI
quirk for both probe and resume paths. Drop duplicate and possibly
unsafe device programming from pata_jmicron().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Adam Litke [Thu, 1 Mar 2007 23:46:08 +0000 (15:46 -0800)]
[PATCH] Fix get_unmapped_area and fsync for hugetlb shm segments
This patch provides the following hugetlb-related fixes to the recent stacked
shm files changes:
- Update is_file_hugepages() so it will reconize hugetlb shm segments.
- get_unmapped_area must be called with the nested file struct to handle
the sfd->file->f_ops->get_unmapped_area == NULL case.
- The fsync f_op must be wrapped since it is specified in the hugetlbfs
f_ops.
This is based on proposed fixes from Eric Biederman that were debugged and
tested by me. Without it, attempting to use hugetlb shared memory segments
on powerpc (and likely ia64) will kill your box.
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: William Irwin <bill.irwin@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Wed, 28 Feb 2007 06:21:23 +0000 (15:21 +0900)]
libata: blacklist FUJITSU MHT2060BH for NCQ
Blacklist FUJITSU MHT2060BH for NCQ. On this drive, NCQ works iff
queue depth is equal to or less than 4. Just turn it off.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mike Accetta <maccetta@laurelnetworks.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Mon, 26 Feb 2007 07:11:00 +0000 (16:11 +0900)]
sata_sil24: kill unused local variable idx in sil24_fill_sg()
Kill unused local variable idx in sil24_fill_sg().
Spotted by Jeff Garzik.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Tejun Heo [Tue, 27 Feb 2007 13:33:21 +0000 (22:33 +0900)]
libata: clear drvdata in ata_host_release(), take#2
Clearing drvdata in ->remove_one causes NULL pointer deference. Clear
drvdata only in ata_host_release() after all resources are freed.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Trond Myklebust [Thu, 1 Mar 2007 04:13:55 +0000 (20:13 -0800)]
[PATCH] VM: invalidate_inode_pages2_range() should not exit early
Fix invalidate_inode_pages2_range() so that it does not immediately exit
just because a single page in the specified range could not be removed.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Aristeu Sergio Rozanski Filho [Thu, 1 Mar 2007 04:13:53 +0000 (20:13 -0800)]
[PATCH] tty_io: fix race in master pty close/slave pty close path
This patch fixes a possible race that leads to double freeing an idr index.
When the master begin to close, release_dev() is called and then
pty_close() is called:
if (tty->driver->close)
tty->driver->close(tty, filp);
This is done without helding any locks other than BKL. Inside pty_close(),
being a master close, the devpts entry will be removed:
#ifdef CONFIG_UNIX98_PTYS
if (tty->driver == ptm_driver)
devpts_pty_kill(tty->index);
#endif
But devpts_pty_kill() will call get_node() that may sleep while waiting for
&devpts_root->d_inode->i_sem. When this happens and the slave is being
opened, tty_open() just found the driver and index:
driver = get_tty_driver(device, &index);
if (!driver) {
mutex_unlock(&tty_mutex);
return -ENODEV;
}
This part of the code is already protected under tty_mute. The problem is
that the slave close already got an index. Then init_dev() is called and
blocks waiting for the same &devpts_root->d_inode->i_sem.
When the master close resumes, it removes the devpts entry, and the
relation between idr index and the tty is gone. The master then sleeps
waiting for the tty_mutex on release_dev().
Slave open resumes and found no tty for that index. As result, a NULL tty
is returned and init_dev() doesn't flow to fast_track:
/* check whether we're reopening an existing tty */
if (driver->flags & TTY_DRIVER_DEVPTS_MEM) {
tty = devpts_get_tty(idx);
if (tty && driver->subtype == PTY_TYPE_MASTER)
tty = tty->link;
} else {
tty = driver->ttys[idx];
}
if (tty) goto fast_track;
The result of this, is that a new tty will be created and init_dev() returns
sucessfull. After returning, tty_mutex is dropped and master close may resume.
Master close finds it's the only use and both sides are closing, then releases
the tty and the index. At this point, the idr index is free, but slave still
has it.
Slave open then calls pty_open() and finds that tty->link->count is 0,
because there's no master and returns error. Then tty_open() calls
release_dev() which executes without any warning, as it was a case of last
slave close when the master is already closed (master->count == 0,
slave->count == 1). The tty is then released with the already released idr
index.
This normally would only issue a warning on idr_remove() but in case of a
customer's critical application, it's never too simple:
thread1: opens master, gets index X
thread1: begin closing master
thread2: begin opening slave with index X
thread1: finishes closing master, index X released
thread3: opens master, gets index X, just released
thread2: fails opening slave, releases index X <----
thread4: opens master, gets index X, init_dev() then find an already in use
and healthy tty and fails
If no more indexes are released, ptmx_open() will keep failing, as the
first free index available is X, and it will make init_dev() fail because
you're trying to "reopen a master" which isn't valid.
The patch notices when this race happens and make init_dev() fail
imediately. The init_dev() function is called with tty_mutex held, so it's
safe to continue with tty till the end of function because release_dev()
won't make any further changes without grabbing the tty_mutex.
Without the patch, on some machines it's possible get easily idr warnings
like this one:
idr_remove called for id=15 which is not allocated.
[<
c02555b9>] idr_remove+0x139/0x170
[<
c02a1b62>] release_mem+0x182/0x230
[<
c02a28e7>] release_dev+0x4b7/0x700
[<
c02a0ea7>] tty_ldisc_enable+0x27/0x30
[<
c02a1e64>] init_dev+0x254/0x580
[<
c02a0d64>] check_tty_count+0x14/0xb0
[<
c02a4f05>] tty_open+0x1c5/0x340
[<
c02a4d40>] tty_open+0x0/0x340
[<
c017388f>] chrdev_open+0xaf/0x180
[<
c017c2ac>] open_namei+0x8c/0x760
[<
c01737e0>] chrdev_open+0x0/0x180
[<
c0167bc9>] __dentry_open+0xc9/0x210
[<
c0167e2c>] do_filp_open+0x5c/0x70
[<
c0167a91>] get_unused_fd+0x61/0xd0
[<
c0167e93>] do_sys_open+0x53/0x100
[<
c0167f97>] sys_open+0x27/0x30
[<
c010303b>] syscall_call+0x7/0xb
using this test application available on:
http://www.ruivo.org/~aris/pty_sodomizer.c
Signed-off-by: Aristeu Sergio Rozanski Filho <aris@ruivo.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yoichi Yuasa [Thu, 1 Mar 2007 04:13:51 +0000 (20:13 -0800)]
[PATCH] fix memory leak in dma_declare_coherent_memory()
When it goes to free1_out, dev->dma_mem has not been freed.
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Karsten Keil [Thu, 1 Mar 2007 04:13:50 +0000 (20:13 -0800)]
[PATCH] Fix buffer overflow and races in capi debug functions
The CAPI trace debug functions were using a fixed size buffer, which can be
overflowed if wrong formatted CAPI messages were sent to the kernel capi
layer. The code was also not protected against multiple callers. This fix
bug 8028.
Additionally the patch make the CAPI trace functions optional.
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Thu, 1 Mar 2007 04:13:49 +0000 (20:13 -0800)]
[PATCH] adapt page_lock_anon_vma() to PREEMPT_RCU
page_lock_anon_vma() uses spin_lock() to block RCU. This doesn't work with
PREEMPT_RCU, we have to do rcu_read_lock() explicitely. Otherwise, it is
theoretically possible that slab returns anon_vma's memory to the system
before we do spin_unlock(&anon_vma->lock).
[ Hugh points out that this only matters for PREEMPT_RCU, which isn't merged
yet, and may never be. Regardless, this patch is conceptually the
right thing to do, even if it doesn't matter at this point. - Linus ]
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vassili Karpov [Thu, 1 Mar 2007 04:13:45 +0000 (20:13 -0800)]
[PATCH] Documentation: CPU load calculation description
Describes how/when the information exported to `/proc/stat' is calculated,
and possible problems with this approach.
Signed-off-by: Vassili Karpov <av1474@comtv.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ingo Molnar [Thu, 1 Mar 2007 04:13:42 +0000 (20:13 -0800)]
[PATCH] sched: fix SMT scheduler bug
The SMT scheduler incorrectly skips kernel threads even if they are
runnable (but they are preempted by a higher-prio user-space task which got
SMT-delayed by an even higher-priority task running on a sibling CPU).
Fix this for now by only doing the SMT-nice optimization if the
to-be-delayed task is the only runnable task. (This should cover most of
the real-life cases anyway.)
This bug has been in the SMT scheduler since 2.6.17 or so, but has only
been noticed now by the active check in the dynticks code.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Geert Uytterhoeven [Thu, 1 Mar 2007 04:13:38 +0000 (20:13 -0800)]
[PATCH] ps3: introduce CONFIG_PS3_ADVANCED
ps3: Introduce CONFIG_PS3_ADVANCED, as suggested by Roman Zippel, and use
it to control questions about PS3 subsystems that may not be obvious for
the casual user.
This gets rid of the following warning on non-powerpc platforms: |
drivers/video/Kconfig:1604:warning: 'select' used by config symbol 'FB_PS3'
refer to undefined symbol 'PS3_PS3AV'
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mingming Cao [Thu, 1 Mar 2007 04:13:35 +0000 (20:13 -0800)]
[PATCH] ext[34]: EA block reference count racing fix
There are race issues around ext[34] xattr block release code.
ext[34]_xattr_release_block() checks the reference count of xattr block
(h_refcount) and frees that xattr block if it is the last one reference it.
Unlike ext2, the check of this counter is unprotected by any lock.
ext[34]_xattr_release_block() will free the mb_cache entry before freeing
that xattr block. There is a small window between the check for the re
h_refcount ==1 and the call to mb_cache_entry_free(). During this small
window another inode might find this xattr block from the mbcache and reuse
it, racing a refcount updates. The xattr block will later be freed by the
first inode without notice other inode is still use it. Later if that
block is reallocated as a datablock for other file, then more serious
problem might happen.
We need put a lock around places checking the refount as well to avoid
racing issue. Another place need this kind of protection is in
ext3_xattr_block_set(), where it will modify the xattr block content in-
the-fly if the refcount is 1 (means it's the only inode reference it).
This will also fix another issue: the xattr block may not get freed at all
if no lock is to protect the refcount check at the release time. It is
possible that the last two inodes could release the shared xattr block at
the same time. But both of them think they are not the last one so only
decreased the h_refcount without freeing xattr block at all.
We need to call lock_buffer() after ext3_journal_get_write_access() to
avoid deadlock (because the later will call lock_buffer()/unlock_buffer
() as well).
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Cc: Andreas Gruenbacher <agruen@suse.de>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 1 Mar 2007 04:13:33 +0000 (20:13 -0800)]
[PATCH] uml: pte_mkread fix
Fix the fact that pte_mkread set _PAGE_RW instead of _PAGE_USER (the logic is
copied from i386 in most place, so it is really as bad as you're thinking).
Thus currently page tables are more permissive than they should.
Such a change may trigger other latent bugs, so be careful with this.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 1 Mar 2007 04:13:31 +0000 (20:13 -0800)]
[PATCH] uml: host VDSO fix
This fixes a problem seen by a number of people running UML on newer host
kernels. init would hang with an infinite segfault loop.
It turns out that the host kernel was providing a AT_SYSINFO_EHDR of
0xffffe000, which faked UML into believing that the host VDSO page could be
reused. However, AT_SYSINFO pointed into the middle of the address space, and
was unmapped as a result. Because UML was providing AT_SYSINFO_EHDR and
AT_SYSINFO to its own processes, these would branch to nowhere when trying to
use the VDSO.
The fix is to also check the location of AT_SYSINFO when deciding whether to
use the host's VDSO.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Allan Graves [Thu, 1 Mar 2007 04:13:29 +0000 (20:13 -0800)]
[PATCH] uml: enable RAW
Add the RAW device driver options to the UML Kconfig.char file so that you may
use them in UML.
Signed-off-by: Allan Graves<allan.graves@gmail.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 1 Mar 2007 04:13:26 +0000 (20:13 -0800)]
[PATCH] FRV: Missing error defs
linux/irq.h uses EINVAL but does not #include linux/errno.h. This results in
the compiler spitting out errors on some files.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Thu, 1 Mar 2007 04:13:21 +0000 (20:13 -0800)]
[PATCH] throttle_vm_writeout(): don't loop on GFP_NOFS and GFP_NOIO allocations
throttle_vm_writeout() is designed to wait for the dirty levels to subside.
But if the caller holds IO or FS locks, we might be holding up that writeout.
So change it to take a single nap to give other devices a chance to clean some
memory, then return.
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kristen Carlson Accardi [Thu, 1 Mar 2007 04:13:17 +0000 (20:13 -0800)]
[PATCH] ACPI: make bay depend on dock
Since the bay driver depends on the dock driver for proper notification,
make this driver depend on the dock driver.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Acked-by: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Miller [Thu, 1 Mar 2007 04:13:13 +0000 (20:13 -0800)]
[PATCH] Bug in MM_RB debugging
The code is seemingly trying to make sure that rb_next() brings us to
successive increasing vma entries.
But the two variables, prev and pend, used to perform these checks, are
never advanced.
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Andrea Arcangeli <andrea@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 1 Mar 2007 04:13:11 +0000 (20:13 -0800)]
[PATCH] uml: add back accidentally removed error
In the 2.6.20 hang patch, I accidentally threw out an error message.
This puts it back.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Thu, 1 Mar 2007 04:13:06 +0000 (20:13 -0800)]
[PATCH] uml: fix host LDT lookup initialization locking, try 2
Add some locking to host_ldt_entries to prevent racing when reading LDT
information from the host.
The locking is somewhat more careful than my previous attempt. Now, only
the check of host_ldt_entries is locked. The lock is dropped immediately
afterwards, and if the LDT needs initializing, that (and the memory
allocations needed) proceed outside the lock.
Also fixed some style violations.
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tilman Schmidt [Thu, 1 Mar 2007 04:13:01 +0000 (20:13 -0800)]
[PATCH] drivers/isdn/gigaset: build asyncdata.o into the gigaset module (fix)
a) Remove #define acrobatics that have become unnecessary by the move of
asyncdata.o into the common part.
b) Correct the rule for building the common part into the kernel when
some or all hardware specific parts are built as modules.
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Halcrow [Thu, 1 Mar 2007 04:12:57 +0000 (20:12 -0800)]
[PATCH] eCryptfs: no path_release() after path_lookup() error
Dmitriy Monakhov wrote:
> if path_lookup() return non zero code we don't have to worry about
> 'nd' parameter, but ecryptfs_read_super does path_release(&nd) after
> path_lookup has failed, and dentry counter becomes negative
Do not do a path_release after a path_lookup error.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Halcrow [Thu, 1 Mar 2007 04:12:52 +0000 (20:12 -0800)]
[PATCH] eCryptfs: remove unnecessary flush_dcache_page()
Remove unnecessary flush_dcache_page() call. Thanks to Dmitriy
Monakhov for pointing this out.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Halcrow [Thu, 1 Mar 2007 04:12:47 +0000 (20:12 -0800)]
[PATCH] eCryptfs: set O_LARGEFILE when opening lower file
O_LARGEFILE should be set here when opening the lower file.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Cc: Dmitriy Monakhov <dmonakhov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Thu, 1 Mar 2007 04:12:40 +0000 (20:12 -0800)]
[PATCH] rtc_cmos oops fix
Fix an oops on the rtc_device_unregister() path by waiting until the last
moment before nulling the rtc->ops vector. Fix some potential oopses by
having the rtc_class_open()/rtc_class_close() interface increase the RTC's
reference count while an RTC handle is available outside the RTC framework.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Antonino A. Daplas [Thu, 1 Mar 2007 04:12:37 +0000 (20:12 -0800)]
[PATCH] MAINTAINERS: Update email address
adaplas@pol.net is still alive, but is choking on the traffic.
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Thu, 1 Mar 2007 04:12:35 +0000 (20:12 -0800)]
[PATCH] add -mm testing in SubmitChecklist
Add -mm testing to SubmitChecklist.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sam Ravnborg [Thu, 1 Mar 2007 04:12:31 +0000 (20:12 -0800)]
[PATCH] fix section mismatch warning in lockdep
lockdep_init() is marked __init but used in several places
outside __init code. This causes following warnings:
$ scripts/mod/modpost kernel/lockdep.o
WARNING: kernel/built-in.o - Section mismatch: reference to .init.text:lockdep_init from .text.lockdep_init_map after 'lockdep_init_map' (at offset 0x105)
WARNING: kernel/built-in.o - Section mismatch: reference to .init.text:lockdep_init from .text.lockdep_reset_lock after 'lockdep_reset_lock' (at offset 0x35)
WARNING: kernel/built-in.o - Section mismatch: reference to .init.text:lockdep_init from .text.__lock_acquire after '__lock_acquire' (at offset 0xb2)
The warnings are less obviously due to heavy inlining by gcc - this is not
altered.
Fix the section mismatch warnings by removing the __init marking, which
seems obviously wrong.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Nick Piggin [Thu, 1 Mar 2007 04:12:27 +0000 (20:12 -0800)]
[PATCH] Rename PG_checked to PG_owner_priv_1
Rename PG_checked to PG_owner_priv_1 to reflect its availablilty as a
private flag for use by the owner/allocator of the page. In the case of
pagecache pages (which might be considered to be owned by the mm),
filesystems may use the flag.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Adrian Bunk [Thu, 1 Mar 2007 04:12:23 +0000 (20:12 -0800)]
[PATCH] fix the SYSCTL=n compilation
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/kernel/sysctl.c:1411: error: conflicting types for 'register_sysctl_table'
/home/bunk/linux/kernel-2.6/linux-2.6.20-mm2/include/linux/sysctl.h:1042: error: previous declaration of 'register_sysctl_table' was here
make[2]: *** [kernel/sysctl.o] Error 1
Caused by commit
0b4d414714f0d2f922d39424b0c5c82ad900a381.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thomas Gleixner [Thu, 1 Mar 2007 04:12:19 +0000 (20:12 -0800)]
[PATCH] Fix posix-cpu-timer breakage caused by stale p->last_ran value
Problem description at:
http://bugzilla.kernel.org/show_bug.cgi?id=8048
Commit
b18ec80396834497933d77b81ec0918519f4e2a7
[PATCH] sched: improve migration accuracy
optimized the scheduler time calculations, but broke posix-cpu-timers.
The problem is that the p->last_ran value is not updated after a context
switch. So a subsequent call to current_sched_time() calculates with a
stale p->last_ran value, i.e. accounts the full time, which the task was
scheduled away.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michael Halcrow [Thu, 1 Mar 2007 04:12:16 +0000 (20:12 -0800)]
[PATCH] eCryptfs: resolve lower page unlocking problem
eCryptfs lower file handling code has several issues:
- Retval from prepare_write()/commit_write() wasn't checked to equality
to AOP_TRUNCATED_PAGE.
- In some places page wasn't unmapped and unlocked after error.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Thu, 1 Mar 2007 04:12:13 +0000 (20:12 -0800)]
[PATCH] kernel-doc fixes for 2.6.20-git15 (non-drivers)
Fix kernel-doc warnings in 2.6.20-git15 (lib/, mm/, kernel/, include/).
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Randy Dunlap [Thu, 1 Mar 2007 04:12:10 +0000 (20:12 -0800)]
[PATCH] kernel-doc: allow space after __attribute__
Allow space(s) between "__attribute__" and "((blah))" so that
kernel-doc does not complain like:
Warning(/tester/linsrc/linux-2.6.20-git15//kernel/timer.c:939): No description found for parameter 'read_persistent_clock(void'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Daniel Walker [Thu, 1 Mar 2007 04:12:07 +0000 (20:12 -0800)]
[PATCH] update timekeeping_is_continuous comment
Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 1 Mar 2007 04:12:03 +0000 (20:12 -0800)]
[PATCH] FRV: Add some missng lazy MMU hooks for NOMMU mode
Add some missing lazy MMU hooks for NOMMU mode.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Howells [Thu, 1 Mar 2007 04:11:58 +0000 (20:11 -0800)]
[PATCH] FRV: No ZONE_DMA
FRV does not require a ZONE_DMA, so all DMA'able pages that aren't highmem
should be in ZONE_NORMAL.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
NeilBrown [Thu, 1 Mar 2007 04:11:53 +0000 (20:11 -0800)]
[PATCH] md: add support for reshape of a raid6
i.e. one or more drives can be added and the array will re-stripe
while on-line.
Most of the interesting work was already done for raid5. This just extends it
to raid6.
mdadm newer than 2.6 is needed for complete safety, however any version of
mdadm which support raid5 reshape will do a good enough job in almost all
cases (an 'echo repair > /sys/block/mdX/md/sync_action' is recommended after a
reshape that was aborted and had to be restarted with an such a version of
mdadm).
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>
NeilBrown [Thu, 1 Mar 2007 04:11:48 +0000 (20:11 -0800)]
[PATCH] md: restart a (raid5) reshape that has been aborted due to a read/write error
An error always aborts any resync/recovery/reshape on the understanding that
it will immediately be restarted if that still makes sense. However a reshape
currently doesn't get restarted. With this patch it does.
To avoid restarting when it is not possible to do work, we call into the
personality to check that a reshape is ok, and strengthen raid5_check_reshape
to fail if there are too many failed devices.
We also break some code out into a separate function: remove_and_add_spares as
the indent level for that code was getting crazy.
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>