28 Mar, 2008
2 commits
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We give a very cryptic error if an ATA device is seen on a SAS port
but libsas isn't compiled to include libata to handle them. Add an
extra warning to explain specifically what the problem is.Acked-by: Darrick J. Wong
Signed-off-by: James Bottomley -
This patch corrects some cases in scsi_add_host() that fail, but the "error"
return code was not reset after a prior use which set it to a non-error value.Patch cut against scsi-rc-fixes-2.6
Signed-off-by: James Smart
Signed-off-by: James Bottomley
27 Mar, 2008
1 commit
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This reverts commit 4b6f5b3a993cbe34b4280f252bccc76967c185c8.
bsg takes a reference to the underlying generic device, so it's
impossible to unregister bsg in the device release routine.Acked-by: FUJITA Tomonori
Signed-off-by: James Bottomley
26 Mar, 2008
4 commits
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This fixes the builtin RTL8139 NIC on the Medion MD9580-F laptop. The
BIOS reports the interrupt routing incorrectly. I recently added a
quirk to work around this, and this patch fixes a typo in the quirk.We pad every ACPI pathname component to four characters, so ".ISA." will
never match anything. We need ".ISA_." instead.Thank you Johann-Nikolaus Andreae
for patiently testing this patch.See http://bugzilla.kernel.org/show_bug.cgi?id=4773
Signed-off-by: Bjorn Helgaas
Signed-off-by: Linus Torvalds -
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c: Fix docbook problem
ASoC/TLV320AIC3X: Stop I2C driver ID abuse
i2c-omap: Fix unhandled fault
i2c-bfin-twi: Disable BF54x support for now -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
KVM: MMU: Fix memory leak on guest demand faults
KVM: VMX: convert init_rmode_tss() to slots_lock
KVM: MMU: handle page removal with shadow mapping
KVM: MMU: Fix is_rmap_pte() with io ptes
KVM: VMX: Restore tss even on x86_64
25 Mar, 2008
33 commits
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
[PATCH] get stack footprint of pathname resolution back to relative sanity
[PATCH] double iput() on failure exit in hugetlb
[PATCH] double dput() on failure exit in tiny-shmem
[PATCH] fix up new filp allocators
[PATCH] check for null vfsmount in dentry_open()
[PATCH] reiserfs: eliminate private use of struct file in xattr
[PATCH] sanitize hppfs
hppfs pass vfsmount to dentry_open()
[PATCH] restore export of do_kern_mount() -
While backporting 72dc67a69690288538142df73a7e3ac66fea68dc, a gfn_to_page()
call was duplicated instead of moved (due to an unrelated patch not being
present in mainline). This caused a page reference leak, resulting in a
fairly massive memory leak.Fix by removing the extraneous gfn_to_page() call.
Signed-off-by: Avi Kivity
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init_rmode_tss was forgotten during the conversion from mmap_sem to
slots_lock.INFO: task qemu-system-x86:3748 blocked for more than 120 seconds.
Call Trace:
[] __down_read+0x86/0x9e
[] do_page_fault+0x346/0x78e
[] trace_hardirqs_on_thunk+0x35/0x3a
[] error_exit+0x0/0xa9
[] copy_user_generic_string+0x17/0x40
[] :kvm:kvm_write_guest_page+0x3e/0x5f
[] :kvm_intel:init_rmode_tss+0xa7/0xf9
[] :kvm_intel:vmx_vcpu_reset+0x10/0x38a
[] :kvm:kvm_arch_vcpu_setup+0x20/0x53
[] :kvm:kvm_vm_ioctl+0xad/0x1cf
[] __lock_acquire+0x4f7/0xc28
[] vfs_ioctl+0x21/0x6b
[] do_vfs_ioctl+0x252/0x26b
[] sys_ioctl+0x3c/0x5e
[] system_call_after_swapgs+0x7b/0x80Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
Do not assume that a shadow mapping will always point to the same host
frame number. Fixes crash with madvise(MADV_DONTNEED).[avi: move after first printk(), add another printk()]
Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
is_rmap_pte() doesn't take into account io ptes, which have the avail bit set.
Signed-off-by: Avi Kivity
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The vmx hardware state restore restores the tss selector and base address, but
not its length. Usually, this does not matter since most of the tss contents
is within the default length of 0x67. However, if a process is using ioperm()
to grant itself I/O port permissions, an additional bitmap within the tss,
but outside the default length is consulted. The effect is that the process
will receive a SIGSEGV instead of transparently accessing the port.Fix by restoring the tss length. Note that i386 had this working already.
Closes bugzilla 10246.
Signed-off-by: Avi Kivity
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: Fix cut-and-paste error in rtl8150.c
USB: ehci: stop vt6212 bus hogging
USB: sierra: add another device id
USB: sierra: dma fixes
USB: add support for Motorola ROKR Z6 cellphone in mass storage mode
USB: isd200: fix memory leak in isd200_get_inquiry_data
USB: pl2303: another product ID
USB: new quirk flag to avoid Set-Interface
USB: fix gadgetfs class request delegation -
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
driver core: debug for bad dev_attr_show() return value.
UIO: add pgprot_noncached() to UIO mmap code -
Revert as it is reported to cause problems for people.
commit 4348a2dc49f9baecd34a9b0904245488c6189398
Author: Shaohua Li
Date: Wed Oct 24 10:45:08 2007 +0800pcie: utilize pcie transaction pending bit
PCIE has a mechanism to wait for Non-Posted request to complete. I think
pci_disable_device is a good place to do this.Signed-off-by: Shaohua Li
Signed-off-by: Greg Kroah-HartmanDue to the regression reported at
http://bugzilla.kernel.org/show_bug.cgi?id=10065Cc: Shaohua Li
Cc: Soeren Sonnenburg
Cc: "Rafael J. Wysocki"
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
lockdep goes off on the iova copy_reserved_iova() because it and a function
it calls grabs locks in the from, and the to of the copy operation.The function grab locks of the same lock classes triggering the warning. The
first lock grabbed is for the constant reserved areas that is never accessed
after early boot. Technically you could do without grabbing the locks for the
"from" structure its copying reserved areas from.But dropping the from locks to me looks wrong, even though it would be ok.
The affected code only runs in early boot as its setting up the DMAR
engines.This patch gives the reserved_ioval_list locks special lockdep classes.
Signed-off-by: Mark Gross
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Try to find the culprit who caused
http://bugzilla.kernel.org/show_bug.cgi?id=10150Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Mapping of physical memory in UIO needs pgprot_noncached() to ensure
that IO memory is not cached. Without pgprot_noncached(), it (accidentally)
works on x86 and arm, but fails on PPC.Signed-off-by: Jean-Samuel Chenard
Signed-off-by: Hans J Koch
Cc: stable
Signed-off-by: Greg Kroah-Hartman -
Signed-off-by: Robert P. J. Day
Signed-off-by: Greg Kroah-Hartman -
The VIA VT6212 defaults to only waiting 1us between passes over EHCI's
async ring, which hammers PCI badly ... and by preventing other devices
from accessing the bus, causes problems like drops in IDE throughput,
a problem that's been bugging users of those chips for several years.A (partial) datasheet for this chip eventually turned up, letting us
see how to make it use a VIA-specific register to switch over to the
the normal 10us value instead, as suggested by the EHCI specification
Solution noted by Lev A. Melnikovsky.It's not clear whether this register exists on other VIA chips; we
know that it's ineffective on the vt8235. So this patch only applies
to chips that seem to be incarnations of the (discrete) vt6212.Signed-off-by: Rene Herman
Tested-by: Lev A. Melnikovsky
Tested-by: Alessandro Suardi
Signed-off-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
Add support for the MC8775 device to the sierra driver.
Signed-off-by: Kevin Lloyd
Signed-off-by: Greg Kroah-Hartman -
while I was adding autosuspend to that driver I noticed a few issues.
You were having DMAed buffers as a part of a structure.
This will fail on platforms that are not DMA-coherent (arm, sparc, ppc, ...)
Please test this patch to fix it.Signed-off-by: Kevin Lloyd
Signed-off-by: Greg Kroah-Hartman -
Motorola ROKR Z6 cellphone has bugs in its USB, so it is impossible to use
it as mass storage. Patch describes new "unusual" USB device for it with
FIX_INQUIRY and FIX_CAPACITY flags and new BULK_IGNORE_TAG flag.
Last flag relaxes check for equality of bcs->Tag and us->tag in
usb_stor_Bulk_transport routine.Signed-off-by: Constantin Baranov
Signed-off-by: Matthew Dharm
Signed-off-by: Daniel Drake
Cc: stable
Signed-off-by: Greg Kroah-Hartman -
If the inquiry fails then the info structure on us->extra was not freed.
Signed-off-by: Boaz Harrosh
Acked-by: Alan Stern
Cc: James Bottomley
Signed-off-by: Andrew Morton
Signed-off-by: Greg Kroah-Hartman -
Device like this http://aldiga.com/english/A-100-USB-EDGE10.htm
contains Prolific 2303 chip.
Actually their site a bit outdated - I have AlDiga AL-11U
GSM/GPRS/EDGE modem and it works with pl2303 module after adding
corresponding product ID.By default modem uses baud rate 460800. GSM chipset - SIMCom SIM600,
quad band 850/900/1800/1900 MHzDevice info:
T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=067b ProdID=0611 Rev= 0.00
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=pl2303
E: Ad=81(I) Atr=03(Int.) MxPS= 10 Ivl=1ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=83(I) Atr=02(Bulk) MxPS= 64 Ivl=0msFrom: Max Arnold
Signed-off-by: Greg Kroah-Hartman -
This patch (as1057) fixes a problem with the X-Rite/Gretag-Macbeth
Eye-One Pro display colorimeter; the device crashes when it receives a
Set-Interface request. A new quirk (USB_QUIRK_NO_SET_INTF) is
introduced and a quirks entry is created for this device.Signed-off-by: Alan Stern
Cc: stable
Signed-off-by: Greg Kroah-Hartman -
gadgetfs (drivers/usb/gadget/inode.c) was not delegating all
non-device requests to userspace. This patch makes the handling of
all request cases consistent.Signed-off-by: Roy Hashimoto
Acked-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] mpc5200: Fix incorrect compatible string for the mdio node
[POWERPC] Update some defconfigs -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] ahci: SB600 workaround is suspect... play it safe for now
sata_promise: fix hardreset hotplug events, take 2
libata: improve HPA error handling
libata: assume no device is attached if both IDENTIFYs are aborted
pata_it821x: use raw nbytes in check_atapi_dma
libata: implement ata_qc_raw_nbytes() -
At least one report claims that a878539ef994787c447a98c2e3ba0fe3dad984ec
failed to solve lockups, whereas the old limit-to-32-bit trick worked.Restore the 32-bit limit, but also leave the 255-sector limit in place,
because we know that's needed as well.Signed-off-by: Jeff Garzik
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-linus:
kbuild: soften modpost checks when doing cross builds -
A Promise SATA controller will signal hotplug events when a hard
reset (COMRESET) is done on a port. These events aren't masked by
the driver, and the unexpected interrupts will cause a sequence
of failed reset attempts util libata's EH finally gives up.This has not been a common problem so far, but the pending libata
hardreset-by-default changes makes it a critical issue.The solution is to disable hotplug events before a reset, and to
reenable them afterwards. (Promise's driver does this too.)This patch adds SATA-specific versions of ->freeze() and ->thaw()
that also disable and enable hotplug events. PATA ports continue
to use the old versions of ->freeze() and ->thaw().Accesses to the hotplug register must be serialised via host->lock.
We rely on ap->lock == &ap->host->lock and that libata takes this
lock before ->freeze() and ->thaw(). Document this requirement.
The interrupt handler is adjusted so its hotplug register accesses
are inside the region protected by host->lock.Tested on various chips (SATA300TX4, SATA300TX2plus, SATAII150TX4,
FastTrack TX4000) with various combinations of SATA and PATA disks,
with and without the pending hardreset-by-default changes.Signed-off-by: Mikael Pettersson
Acked-by: Tejun Heo
Signed-off-by: Jeff Garzik -
The printk() logic on when/how to get the console semaphore was
unreadable, this splits the code up into a few helper functions and
makes it easier to follow what is going on.Signed-off-by: Linus Torvalds
-
In case we're accounting from a sub-namespace, the tgids reported will not
refer to the right namespace.Save the pid_namespace we're accounting in on the acct_glbs and use it in
do_acct_process.Two less :) places using the task_struct.tgid member.
Signed-off-by: Pavel Emelyanov
Cc: Oleg Nesterov
Cc: "Paul E. McKenney"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is minor, but dereferencing even current real_parent is not safe on debug
kernels, since the memory, this points to, can be unmapped - RCU protection is
required.Besides, the tgid field is deprecated and is to be replaced with task_tgid_xxx
call (the 2nd patch), so RCU will be required anyway.Signed-off-by: Pavel Emelyanov
Cc: Oleg Nesterov
Cc: "Paul E. McKenney"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Revert commit f1a9ee758de7de1e040de849fdef46e6802ea117:
Author: Rik van Riel
Date: Thu Feb 7 00:14:08 2008 -0800kswapd should only wait on IO if there is IO
The current kswapd (and try_to_free_pages) code has an oddity where the
code will wait on IO, even if there is no IO in flight. This problem is
notable especially when the system scans through many unfreeable pages,
causing unnecessary stalls in the VM.Additionally, tasks without __GFP_FS or __GFP_IO in the direct reclaim path
will sleep if a significant number of pages are encountered that should be
written out. This gives kswapd a chance to write out those pages, while
the direct reclaim task sleeps.Signed-off-by: Rik van Riel
Signed-off-by: Andrew Morton
Signed-off-by: Linus TorvaldsBecause of large latencies and interactivity problems reported by Carlos,
here: http://lkml.org/lkml/2008/3/22/211Cc: Rik van Riel
Cc: "Carlos R. Mafra"
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Update documentation for the hw_random support to be current:
- Documentation/hw_random.txt has been updated to reflect the
current code: it's a framework now, a "core" with a small
sysfs interface, that hardware-specific drivers plug in to.
Text specific to Intel hardware is now at the end.- Kconfig now references the Documentation/hw_random.txt file
and better explains what this really does.Both chunks of documentation now higlight the fact that the kernel entropy
pool is maintained by "rngd", and this driver has nothing directly to do with
that important task.Signed-off-by: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Older smackfs was parsing MAC rules by characters, thus a need of locking
write sessions on open() was needed. This lock is no longer useful now since
each rule is handled by a single write() call.This is also a bugfix since seq_open() was not called if an open() O_RDWR flag
was given, leading to a seq_read() without an initialized seq_file, thus an
Oops.Signed-off-by: Ahmed S. Darwish
Reported-by: Jonathan Corbet
Acked-by: Casey Schaufler
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
