Greg Kroah-Hartman [Mon, 5 Nov 2007 21:16:15 +0000 (13:16 -0800)]
kobject: add kobject_create_and_add function
This lets users create dynamic kobjects much easier.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 27 Sep 2007 21:48:53 +0000 (14:48 -0700)]
kset: add kset_create_and_add function
Now ksets can be dynamically created on the fly, no static definitions
are required. Thanks to Miklos for hints on how to make this work
better for the callers.
And thanks to Kay for finding some stupid bugs in my original version
and pointing out that we need to handle the fact that kobject's can have
a kset as a parent and to handle that properly in kobject_add().
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 16 Oct 2007 16:11:44 +0000 (10:11 -0600)]
kobject: remove kobj_set_kset_s as no one is using it anymore
What a confusing name for a macro...
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 16 Oct 2007 16:11:44 +0000 (10:11 -0600)]
kobject: remove struct kobj_type from struct kset
We don't need a "default" ktype for a kset. We should set this
explicitly every time for each kset. This change is needed so that we
can make ksets dynamic, and cleans up one of the odd, undocumented
assumption that the kset/kobject/ktype model has.
This patch is based on a lot of help from Kay Sievers.
Nasty bug in the block code was found by Dave Young
<hidave.darkstar@gmail.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 05:31:08 +0000 (21:31 -0800)]
kobject: add kobject_init_and_add function
Also add a kobject_init_and_add function which bundles up what a lot of
the current callers want to do all at once, and it properly handles the
memory usages, unlike kobject_register();
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 05:31:08 +0000 (21:31 -0800)]
kobject: add kobject_add_ng function
This is what the kobject_add function is going to become.
Add this to the kernel and then we can convert the tree over to use it.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 05:31:08 +0000 (21:31 -0800)]
kobject: add kobject_init_ng function
This is what the kobject_init function is going to become.
Add this to the kernel and then we can convert the tree over to use it.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 05:31:08 +0000 (21:31 -0800)]
kobject: make kobject_cleanup be static
No one except the kobject core calls it so make the function static.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 29 Nov 2007 23:32:47 +0000 (18:32 -0500)]
kobject: fix up kobject_set_name to use kvasprintf
Kay pointed out that kobject_set_name was being very stupid, doing two
allocations for every call, when it should just be using the kernel
function kvasprintf() instead.
This change adds the internal kobject_set_name_vargs() function, which
other follow-on patches will be using.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 04:16:20 +0000 (21:16 -0700)]
kobject: convert icom to use kref, not kobject
The IBM icom serial driver is using a kobject only for reference
counting, nothing else. So switch it to use a kref instead, which is
all that is needed, and is much smaller.
Cc: Anton Blanchard <anton@au.ibm.com>
Cc: Paul Mackerras <paulus@au.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ryan S. Arnold <rsa@us.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 28 Nov 2007 18:46:22 +0000 (10:46 -0800)]
kobject: convert hvcs to use kref, not kobject
hvcs is using a kobject only for reference counting, nothing else. So
switch it to use a kref instead, which is all that is needed, and is
much smaller.
Cc: Anton Blanchard <anton@au.ibm.com>
Cc: Paul Mackerras <paulus@au.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ryan S. Arnold <rsa@us.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 28 Nov 2007 18:46:22 +0000 (10:46 -0800)]
kobject: convert hvc_console to use kref, not kobject
hvc_console is using a kobject only for reference counting, nothing
else. So switch it to use a kref instead, which is all that is needed,
and is much smaller.
Cc: Anton Blanchard <anton@au.ibm.com>
Cc: Paul Mackerras <paulus@au.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ryan S. Arnold <rsa@us.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Tue, 4 Dec 2007 04:16:20 +0000 (21:16 -0700)]
kobject: convert ibmasm to use kref, not kobject
The IBM asm driver is using a kobject only for reference counting,
nothing else. So switch it to use a kref instead, which is all that is
needed, and is much smaller.
Cc: Max Asböck <amax@us.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jiri Slaby [Wed, 21 Nov 2007 22:55:19 +0000 (14:55 -0800)]
sysfs: remove SPIN_LOCK_UNLOCKED
SPIN_LOCK_UNLOCKED is deprecated, use DEFINE_SPINLOCK instead
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tejun Heo <teheo@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kay Sievers [Thu, 1 Nov 2007 19:20:52 +0000 (20:20 +0100)]
sysfs: create optimal relative symlink targets
Instead of walking from the source down to the root of sysfs, and back
to the target, we stop at the first directory the source and the target
share.
This link:
/devices/pci0000:00/0000:00:1d.7/usb1/1-0:1.0/ep_81
pointed to:
../../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-0:1.0/usb_endpoint/usbdev2.1_ep81
now it just points to:
usb_endpoint/usbdev1.1_ep81
Thanks to Denis Cheng for bringing this up, and sending the initial patch.
CC: Denis Cheng <crquan@gmail.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Emil Medve [Tue, 30 Oct 2007 19:37:14 +0000 (14:37 -0500)]
driver core: Make the dev_*() family of macros in device.h complete
Removed duplicates defined elsewhere
Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Mon, 15 Oct 2007 22:01:24 +0000 (15:01 -0700)]
ecryptfs: clean up attribute mess
It isn't that hard to add simple kset attributes, so don't go through
all the gyrations of creating your own object type and show and store
functions. Just use the functions that are already present. This makes
things much simpler.
Note, the version_str string violates the "one value per file" rule for
sysfs. I suggest changing this now (individual files per type supported
is one suggested way.)
Cc: Michael A. Halcrow <mahalcro@us.ibm.com>
Cc: Michael C. Thompson <mcthomps@us.ibm.com>
Cc: Tyler Hicks <tyhicks@ou.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
cosa: Convert from class_device to device for cosa sync driver
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
tifm: Convert from class_device to device for TI flash media
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
pktcdvd: Convert from class_device to device for block/pktcdvd
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
paride: Convert from class_device to device for block/paride
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Tim Waugh <tim@cyberelk.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
mtd: Convert from class_device to device for MTD/mtdchar
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
MCP_UCB1200: Convert from class_device to device
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
adb: Convert from class_device to device
struct class_device is going away, this converts the code to use struct
device instead.
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Joshua Thompson <funaho@jurai.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
ISDN: Convert from class_device to device for ISDN capi
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
IDE: Convert from class_device to device for ide-tape
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Gadi Oxman <gadio@netvision.net.il>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
DMA: Convert from class_device to device for DMA engine
Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Shannon Nelson <shannon.nelson@intel.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kay Sievers [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
coda: convert struct class_device to struct device
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Tony Jones <tonyj@suse.de>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Jones [Tue, 25 Sep 2007 00:03:03 +0000 (02:03 +0200)]
aoechr: Convert from class_device to device
Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sam Hopkins <sah@coraid.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Evgeniy Polyakov [Mon, 10 Dec 2007 20:03:43 +0000 (23:03 +0300)]
kref: add kref_set()
This adds kref_set() to the kref api for future use by people who really
know what they are doing with krefs...
From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Rafael J. Wysocki [Sat, 12 Jan 2008 19:40:46 +0000 (20:40 +0100)]
PM: Acquire device locks on suspend
This patch reorganizes the way suspend and resume notifications are
sent to drivers. The major changes are that now the PM core acquires
every device semaphore before calling the methods, and calls to
device_add() during suspends will fail, while calls to device_del()
during suspends will block.
It also provides a way to safely remove a suspended device with the
help of the PM core, by using the device_pm_schedule_removal() callback
introduced specifically for this purpose, and updates two drivers (msr
and cpuid) that need to use it.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 25 Oct 2007 04:52:56 +0000 (21:52 -0700)]
kobject: remove incorrect comment in kobject_rename
As pointed out by Kay.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Robert P. J. Day [Wed, 7 Nov 2007 09:09:46 +0000 (04:09 -0500)]
Documentation: Replace obsolete "driverfs" with "sysfs".
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Frank Seidel [Fri, 9 Nov 2007 13:49:23 +0000 (14:49 +0100)]
nozomi driver
This is a driver to control the cardbus wireless data card that works on
3g networks.
Greg Kroah-Hartman <gregkh@suse.de> did the initial driver cleanup.
Thanks to Arnaud Patard <apatard@mandriva.com> for help with bugfixing.
Thanks to Alan Cox for a lot of tty fixes.
Thanks to Satyam Sharma <satyam@infradead.org> for fixing buildbreakage.
Thanks to Frank Seidel <fseidel@suse.de> for a lot of bugfixes and
rewriting to make it a sane Linux driver
Thanks to Jiri Slaby <jirislaby@gmail.com> for a lot bugfixes, cleanups
and rewrites that make it much more readable.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Frank Seidel <fseidel@suse.de>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Jean Delvare [Tue, 8 Jan 2008 17:11:24 +0000 (18:11 +0100)]
sysfs: Fix a copy-n-paste typo in comment
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Zhang Le [Mon, 7 Jan 2008 16:59:16 +0000 (00:59 +0800)]
Chinese: add translation of Codingstyle
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Li Yang [Tue, 23 Oct 2007 17:04:21 +0000 (01:04 +0800)]
Chinese: add translation of sparse.txt
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bryan Wu [Tue, 23 Oct 2007 17:00:23 +0000 (01:00 +0800)]
Chinese: add translation of volatile-considered-harmful.txt
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
TripleX Chung [Tue, 23 Oct 2007 16:57:24 +0000 (00:57 +0800)]
Chinese: add translation of stable_kernel_rules.txt
Signed-off-by: TripleX Chung <triplex@zh-kernel.org>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dave Young [Tue, 23 Oct 2007 17:14:29 +0000 (01:14 +0800)]
Chinese: add translation of oops-tracing.txt
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Li Yang [Tue, 23 Oct 2007 16:51:11 +0000 (00:51 +0800)]
Chinese: add translation of SubmittingDrivers
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
TripleX Chung [Tue, 23 Oct 2007 16:46:43 +0000 (00:46 +0800)]
Chinese: add translation of SubmittingPatches
Signed-off-by: TripleX Chung <triplex@zh-kernel.org>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Li Yang [Tue, 23 Oct 2007 13:58:51 +0000 (21:58 +0800)]
Chinese: Change man-pages maintainer address in HOWOTO
The email address of the man-pages maintainer has changed.
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Li Yang [Tue, 24 Jul 2007 18:43:32 +0000 (02:43 +0800)]
Chinese: rephrase English introduction in HOWTO
Rephrase the introduction as suggested by Jesper Juhl.
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Li Yang [Tue, 24 Jul 2007 18:03:06 +0000 (02:03 +0800)]
Chinese: Add the known_regression URI to the HOWTO
Update translation for commit
be3884943674f8ee7656b1d8b71c087ec900c836.
Signed-off-by: Li Yang <leo@zh-kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Linus Torvalds [Thu, 24 Jan 2008 22:58:37 +0000 (14:58 -0800)]
Linux 2.6.24
Kalle Valo [Thu, 24 Jan 2008 22:00:40 +0000 (14:00 -0800)]
spi: omap2_mcspi PIO RX fix
Before transmission of the last word in PIO RX_ONLY mode rx+tx mode
is enabled:
/* prevent last RX_ONLY read from triggering
* more word i/o: switch to rx+tx
*/
if (c == 0 && tx == NULL)
mcspi_write_cs_reg(spi,
OMAP2_MCSPI_CHCONF0, l);
But because c is decremented after the test, c will never be zero and
rx+tx will not be enabled. This breaks RX_ONLY mode PIO transfers.
Fix it by decrementing c in the beginning of the various I/O loops.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 24 Jan 2008 21:35:10 +0000 (13:35 -0800)]
Revert "mac80211: warn when receiving frames with unaligned data"
This reverts commit
81100eb80add328c4d2a377326f15aa0e7236398 for the
release, to avoid the unnecessary warning noise that is only really
relevant to wireless driver developers.
The warning will probably go right back in after I cut the release, but
at least we won't unnecessarily worry users.
Acked-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 24 Jan 2008 16:12:38 +0000 (08:12 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC64]: Partially revert "Constify function pointer tables."
Linus Torvalds [Thu, 24 Jan 2008 16:09:50 +0000 (08:09 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
Revert "ACPI: Fan: Drop force_power_state acpi_device option"
ACPI: EC: "DEBUG" needs to be defined earlier
ACPI: EC: add leading zeros to debug messages
ACPI: EC: fix dmesg spam regression
ACPI: DMI blacklist to reduce console warnings on OSI(Linux) systems.
ACPI: Add ThinkPad R61, ThinkPad T61 to OSI(Linux) white-list
ACPI: make _OSI(Linux) console messages smarter
ACPI: Delete Intel Customer Reference Board (CRB) from OSI(Linux) DMI list
ACPI: on OSI(Linux), print needed DMI rather than requesting dmidecode output
ACPI: create acpi_dmi_dump()
DMI: create dmi_get_slot()
DMI: move dmi_available declaration to linux/dmi.h
ACPI: processor: Fix null pointer dereference in throttling
Mel Gorman [Thu, 24 Jan 2008 13:49:54 +0000 (05:49 -0800)]
slab: partially revert list3 changes
Partial revert the changes made by
04231b3002ac53f8a64a7bd142fde3fa4b6808c6
to the kmem_list3 management. On a machine with a memoryless node, this
BUG_ON was triggering
static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
{
struct list_head *entry;
struct slab *slabp;
struct kmem_list3 *l3;
void *obj;
int x;
l3 = cachep->nodelists[nodeid];
BUG_ON(!l3);
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Larry Woodman [Thu, 24 Jan 2008 13:49:25 +0000 (05:49 -0800)]
fix hugepages leak due to pagetable page sharing
The shared page table code for hugetlb memory on x86 and x86_64
is causing a leak. When a user of hugepages exits using this code
the system leaks some of the hugepages.
-------------------------------------------------------
Part of /proc/meminfo just before database startup:
HugePages_Total: 5500
HugePages_Free: 5500
HugePages_Rsvd: 0
Hugepagesize: 2048 kB
Just before shutdown:
HugePages_Total: 5500
HugePages_Free: 4475
HugePages_Rsvd: 0
Hugepagesize: 2048 kB
After shutdown:
HugePages_Total: 5500
HugePages_Free: 4988
HugePages_Rsvd:
0 Hugepagesize: 2048 kB
----------------------------------------------------------
The problem occurs durring a fork, in copy_hugetlb_page_range(). It
locates the dst_pte using huge_pte_alloc(). Since huge_pte_alloc() calls
huge_pmd_share() it will share the pmd page if can, yet the main loop in
copy_hugetlb_page_range() does a get_page() on every hugepage. This is a
violation of the shared hugepmd pagetable protocol and creates additional
referenced to the hugepages causing a leak when the unmap of the VMA
occurs. We can skip the entire replication of the ptes when the hugepage
pagetables are shared. The attached patch skips copying the ptes and the
get_page() calls if the hugetlbpage pagetable is shared.
[akpm@linux-foundation.org: coding-style cleanups]
Signed-off-by: Larry Woodman <lwoodman@redhat.com>
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Badari Pulavarty <pbadari@us.ibm.com>
Cc: Ken Chen <kenchen@google.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric W. Biederman [Thu, 24 Jan 2008 13:52:13 +0000 (05:52 -0800)]
sysctl: kill binary sysctl KERN_PPC_L2CR
: Stefan Roese <sr@denx.de> said:
> ppc: 4xx: sysctl table check failed: /kernel/l2cr .1.31 Missing strategy
>
> I'm seeing this error message when booting an recent arch/ppc kernel on
> 4xx platforms (tested on Ocotea and other 4xx platforms). Booting NFS
> rootfs still works fine, but this message kind of makes me "nervous".
> This is not seen on 4xx arch/powerpc platforms. Here the bootlog:
Because the data field was never filled and a binary sysctl handler was
never written this sysctl has never been usable through the sys_sysctl
interface. So just remove the binary sysctl number. Making the kernel
sanity checks happy.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Reported-by: Stefan Roese <sr@denx.de>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Arjan van de Ven [Thu, 24 Jan 2008 06:00:45 +0000 (07:00 +0100)]
lockdep: fix kernel crash on module unload
Michael Wu noticed in his lkml post at
http://marc.info/?l=linux-kernel&m=
119396182726091&w=2
that certain wireless drivers ended up having their name in module
memory, which would then crash the kernel on module unload.
The patch he proposed was a bit clumsy in that it increased the size of
a lockdep entry significantly; the patch below tries another approach,
it checks, on module teardown, if the name of a class is in module space
and then zaps the class. This is very similar to what we already do
with keys that are in module space.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Thu, 24 Jan 2008 05:32:04 +0000 (21:32 -0800)]
[SPARC64]: Partially revert "Constify function pointer tables."
This partially reverts
872e2be7c4056496c2871bd9b0f2fae6c374fe47
(Constify function pointer tables.)
The solaris/socksys.c transformation wasn't valid:
arch/sparc64/solaris/socksys.c:192: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:195: error: assignment of read-only variable ‘socksys_file_ops’
arch/sparc64/solaris/socksys.c:196: error: assignment of read-only variable ‘socksys_file_ops’
Signed-off-by: David S. Miller <davem@davemloft.net>
Len Brown [Thu, 24 Jan 2008 04:50:01 +0000 (23:50 -0500)]
Pull dmi-2.6.24 into release branch
Len Brown [Thu, 24 Jan 2008 04:48:46 +0000 (23:48 -0500)]
Pull bugzilla-9798 into release branch
Len Brown [Thu, 24 Jan 2008 04:48:33 +0000 (23:48 -0500)]
Pull bugzilla-8459 into release branch
Len Brown [Thu, 24 Jan 2008 04:48:19 +0000 (23:48 -0500)]
Pull bugzilla-9747 into release branch
Len Brown [Thu, 24 Jan 2008 03:41:20 +0000 (22:41 -0500)]
Revert "ACPI: Fan: Drop force_power_state acpi_device option"
This reverts commit
93ad7c07ad487b036add8760dabcc35666a550ef.
http://bugzilla.kernel.org/show_bug.cgi?id=9798
Signed-off-by: Len Brown <len.brown@intel.com>
Márton Németh [Thu, 24 Jan 2008 03:34:09 +0000 (22:34 -0500)]
ACPI: EC: "DEBUG" needs to be defined earlier
The "DEBUG" symbol needs to be defined before #including <linux/kernel.h> to
get the pr_debug() working.
Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Len Brown <len.brown@intel.com>
Márton Németh [Thu, 24 Jan 2008 03:33:06 +0000 (22:33 -0500)]
ACPI: EC: add leading zeros to debug messages
Add leading zeros to pr_debug() calls. For example if x=0x0a, the format
"0x%2x" will result the string "0x a", the format "0x%2.2x" will result "0x0a".
Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Len Brown <len.brown@intel.com>
Alexey Starikovskiy [Thu, 24 Jan 2008 03:28:34 +0000 (22:28 -0500)]
ACPI: EC: fix dmesg spam regression
Return OBF_1 optimization workaround
http://bugzilla.kernel.org/show_bug.cgi?id=8459
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Thu, 24 Jan 2008 02:46:25 +0000 (18:46 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
[SPARC]: Constify function pointer tables.
[SPARC64]: Fix section error in sparcspkr
[SPARC64]: Fix of section mismatch warnings.
Linus Torvalds [Thu, 24 Jan 2008 02:41:51 +0000 (18:41 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
sis190: scheduling while atomic error
sis190: mdio operation failure is not correctly detected
sis190: remove duplicate INIT_WORK
sis190: add cmos ram access code for the SiS19x/968 chipset pair
[INET]: Fix truesize setting in ip_append_data
[NETNS]: Re-export init_net via EXPORT_SYMBOL.
iwlwifi: fix possible read attempt on ucode that is not available
[IPV4]: Add missing skb->truesize increment in ip_append_page().
[TULIP] DMFE: Fix SROM parsing regression.
[BLUETOOTH]: Move children of connection device to NULL before connection down.
Len Brown [Thu, 24 Jan 2008 02:19:27 +0000 (21:19 -0500)]
ACPI: DMI blacklist to reduce console warnings on OSI(Linux) systems.
This DMI blacklist reduces the console messages
on systems which have a BIOS that invokes OSI(Linux).
As the DMI blacklist already knows about these systems,
the request for DMI info itself is disabled.
Further, if OSI(Linux) has already been determined
to have no beneift, we disable the console message
requesting acpi_osi=Linux test results.
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 24 Jan 2008 01:56:18 +0000 (20:56 -0500)]
ACPI: Add ThinkPad R61, ThinkPad T61 to OSI(Linux) white-list
acpi_osi=Linux helps sound on these systems.
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 24 Jan 2008 01:50:56 +0000 (20:50 -0500)]
ACPI: make _OSI(Linux) console messages smarter
If BIOS invokes _OSI(Linux), the kernel response
depends on what the ACPI DMI list knows about the system,
and that is reflectd in dmesg:
1) System unknown to DMI:
ACPI: BIOS _OSI(Linux) query ignored
ACPI: DMI System Vendor: LENOVO
ACPI: DMI Product Name: 7661W1P
ACPI: DMI Product Version: ThinkPad T61
ACPI: DMI Board Name: 7661W1P
ACPI: DMI BIOS Vendor: LENOVO
ACPI: DMI BIOS Date: 10/18/2007
ACPI: Please send DMI info above to linux-acpi@vger.kernel.org
ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org
2) System known to DMI, but effect of OSI(Linux) unknown:
ACPI: DMI detected: Lenovo ThinkPad T61
...
ACPI: BIOS _OSI(Linux) query ignored via DMI
ACPI: If "acpi_osi=Linux" works better, please notify linux-acpi@vger.kernel.org
3) System known to DMI, which disables _OSI(Linux):
ACPI: DMI detected: Lenovo ThinkPad T61
...
ACPI: BIOS _OSI(Linux) query ignored via DMI
4) System known to DMI, which enable _OSI(Linux):
ACPI: DMI detected: Lenovo ThinkPad T61
ACPI: Added _OSI(Linux)
...
ACPI: BIOS _OSI(Linux) query honored via DMI
cmdline overrides take precidence over the built-in
default and the DMI prescribed default.
cmdline "acpi_osi=Linux" results in:
ACPI: BIOS _OSI(Linux) query honored via cmdline
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 24 Jan 2008 01:06:41 +0000 (20:06 -0500)]
ACPI: Delete Intel Customer Reference Board (CRB) from OSI(Linux) DMI list
Linux does not want BIOS writers to invoke _OSI(Linux) -
for in the field it causes more Windows incompatibility problems
than it solves.
So when it is seen in the BIOS for an Intel Customer Reference Board,
Linux should ignore its effect by default, and should complain loudly.
Otherwise, the reference BIOS will go unfixed, and the bad BIOS
will spread to the field.
Users of this board can get the old behavior with "acpi_osi=Linux"
As this was the only entry, delete acpi_osl_dmi_table[].
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 24 Jan 2008 01:04:28 +0000 (20:04 -0500)]
ACPI: on OSI(Linux), print needed DMI rather than requesting dmidecode output
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Thu, 24 Jan 2008 01:01:22 +0000 (20:01 -0500)]
ACPI: create acpi_dmi_dump()
A utility routine to print common entries used
for ACPI-related DMI blacklist entries.
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Wed, 23 Jan 2008 21:36:45 +0000 (16:36 -0500)]
DMI: create dmi_get_slot()
This simply allows other sub-systems (such as ACPI)
to access and print out slots in static dmi_ident[].
Signed-off-by: Len Brown <len.brown@intel.com>
Len Brown [Wed, 16 Jan 2008 22:20:37 +0000 (17:20 -0500)]
DMI: move dmi_available declaration to linux/dmi.h
Signed-off-by: Len Brown <len.brown@intel.com>
Linus Torvalds [Thu, 24 Jan 2008 02:05:28 +0000 (18:05 -0800)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] initio: fix module hangs on loading
Carlos Martín [Thu, 24 Jan 2008 00:34:10 +0000 (10:34 +1000)]
drm/i915: add support for E7221 chipset
E7221 chipset is a server version of the i915.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Carlos Martín [Thu, 24 Jan 2008 00:34:09 +0000 (10:34 +1000)]
agp/intel: add support for E7221 chipset
The E7221 chipset is a 915 rebadged for the Intel server line.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeremy Fitzhardinge [Thu, 24 Jan 2008 00:07:17 +0000 (16:07 -0800)]
xen: disable vcpu_info placement for now
There have been several reports of Xen guest domains locking up when
using vcpu_info structure placement. Disable it for now.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stuart Swales [Wed, 23 Jan 2008 20:00:48 +0000 (20:00 +0000)]
[SCSI] initio: fix module hangs on loading
I've verified (on my Initio 9100 with a DAT drive) that the
2.6.24-rc8-git6 initio module still hangs on loading.
These fixes (other than the printk) are needed to get the module to load
ok (and work correctly) with my adapter & tape drive.
a) printk cosmetic fix
b) cblk->sglen needs setting for later DMA I/O routines to use
c) host->bios_addr needs setting for debug output correctness
d) semaph & semaph_lock initialisation had got lost since 2.6.22
e) since 2.6.22 the bios data address was truncated to 16 bits (needs 20
when shifted left)
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Anton Salikhmetov [Tue, 22 Jan 2008 23:21:18 +0000 (02:21 +0300)]
Update ctime and mtime for memory-mapped files
Update ctime and mtime for memory-mapped files at a write access on
a present, read-only PTE, as well as at a write on a non-present PTE.
Signed-off-by: Anton Salikhmetov <salikhmetov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Francois Romieu [Sat, 17 Nov 2007 20:29:47 +0000 (21:29 +0100)]
sis190: scheduling while atomic error
sis190_tx_timeout
-> sis190_hw_start
-> sis190_soft_reset
-> msleep *splat*
PCI transactions are correctly flushed here.
The msleep() is probably useless.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: K.M. Liu <kmliu@sis.com.tw>
Francois Romieu [Sat, 17 Nov 2007 15:56:43 +0000 (16:56 +0100)]
sis190: mdio operation failure is not correctly detected
i ranges from 0 to 100 in the 'for' loop a few lines above.
Reported by davem.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: K.M. Liu <kmliu@sis.com.tw>
Francois Romieu [Sat, 17 Nov 2007 14:55:10 +0000 (15:55 +0100)]
sis190: remove duplicate INIT_WORK
It is already done in sis190_init_one.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: K.M. Liu <kmliu@sis.com.tw>
Francois Romieu [Tue, 4 Dec 2007 21:58:41 +0000 (22:58 +0100)]
sis190: add cmos ram access code for the SiS19x/968 chipset pair
More work is needed to handle correctly the PHY of the new devices
when connected to a 10Mb link but this change already helps some
users as is.
Fix for:
http://bugzilla.kernel.org/show_bug.cgi?id=9467
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: K.M. Liu <kmliu@sis.com.tw>
Cc: J. Gleacher <jgleacher@yahoo.com>
Cc: Alexandre Penasso Teixeira <alexandre@keepsoftware.com>
Cc: Arliton Rocha <arliton@gmail.com>
Cc: Juan Jose Pablos <juanjo@apertus.es>
Cc: Wipat Srutiprom <wipat.s@psu.ac.th>
Herbert Xu [Wed, 23 Jan 2008 06:39:26 +0000 (22:39 -0800)]
[INET]: Fix truesize setting in ip_append_data
As it is ip_append_data only counts page fragments to the skb that
allocated it. As such it means that the first skb gets hit with a
4K charge even though it might have only used a fraction of it while
all subsequent skb's that use the same page gets away with no charge
at all.
This bug was exposed by the UDP accounting patch.
[ The wmem_alloc bumping needs to be moved with the truesize,
noticed by Takahiro Yasui. -DaveM ]
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Denis V. Lunev [Wed, 23 Jan 2008 06:05:33 +0000 (22:05 -0800)]
[NETNS]: Re-export init_net via EXPORT_SYMBOL.
init_net is used added as a parameter to a lot of old API calls, f.e.
ip_dev_find. These calls were exported as EXPORT_SYMBOL. So, export init_net
as EXPORT_SYMBOL to keep networking API consistent.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reinette Chatre [Mon, 21 Jan 2008 18:08:31 +0000 (10:08 -0800)]
iwlwifi: fix possible read attempt on ucode that is not available
This fixes a NULL pointer dereference that can occur when the
ucode is not loaded at the time __iwl_up is called.
The problem was reported at http://kerneloops.org/raw.php?rawid=2765&msgid=
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
David S. Miller [Wed, 23 Jan 2008 07:44:31 +0000 (23:44 -0800)]
[IPV4]: Add missing skb->truesize increment in ip_append_page().
And as noted by Takahiro Yasui, we thus need to bump the
sk->sk_wmem_alloc at this spot as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 22 Jan 2008 07:20:58 +0000 (23:20 -0800)]
[TULIP] DMFE: Fix SROM parsing regression.
Changeset
16b110c3fd760620b4a787db6ed512fe531ab1b5 (dmfe warning fix)
bothed up the offsets read from the SROM so that it doesn't read the
same datums it used to.
The change made transformations like turning:
"srom + 34"
into
"(__le32 *)srom + 34/4"
which doesn't work because 4 does not divide evenly
into 34 so we're using a different pointer offset
than in the original code.
I've changed theses cases in dmfe_parse_srom() to
consistently use "(type *)(srom + offset)" preserving
the offsets from the original code.
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Young [Tue, 22 Jan 2008 06:35:21 +0000 (22:35 -0800)]
[BLUETOOTH]: Move children of connection device to NULL before connection down.
The rfcomm tty device will possibly retain even when conn is down, and
sysfs doesn't support zombie device moving, so this patch move the tty
device before conn device is destroyed.
For the bug refered please see :
http://lkml.org/lkml/2007/12/28/87
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Engelhardt [Wed, 23 Jan 2008 02:29:20 +0000 (18:29 -0800)]
[SPARC]: Constify function pointer tables.
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jordan Crouse [Tue, 22 Jan 2008 22:30:16 +0000 (23:30 +0100)]
x86: GEODE fix a race condition in the MFGPT timer tick
When we set the MFGPT timer tick, there is a chance that we'll
immediately assert an event. If for some reason the IRQ routing
for this clock has been setup for some other purpose, then we
could end up firing an interrupt into the SMM handler or worse.
This rearranges the timer tick init function to initalize the handler
before we set up the MFGPT clock to make sure that even if we get
an event, it will go to the handler.
Furthermore, in the handler we need to make sure that we clear the
event, even if the timer isn't running.
Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Arnd Hannemann <hannemann@i4.informatik.rwth-aachen.de>
Johann Felix Soden [Sun, 20 Jan 2008 13:41:18 +0000 (14:41 +0100)]
Fix file references in documentation and Kconfig
Fix typo in arch/powerpc/boot/flatdevtree_env.h.
There is no Documentation/networking/ixgbe.txt.
README.cycladesZ is now in Documentation/.
wavelan.p.h is now in drivers/net/wireless/.
HFS.txt is now Documentation/filesystems/hfs.txt.
OSS-files are now in sound/oss/.
Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Tue, 22 Jan 2008 17:25:55 +0000 (09:25 -0800)]
Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6
* 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6:
hwmon: (it87) request only Environment Controller ports
Linus Torvalds [Tue, 22 Jan 2008 17:19:06 +0000 (09:19 -0800)]
Merge git://git./linux/kernel/git/x86/linux-2.6-x86
* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
Revert "x86: fix NMI watchdog & 'stopped time' problem"
Linus Torvalds [Tue, 22 Jan 2008 17:18:45 +0000 (09:18 -0800)]
Merge git://git./linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
sched: group scheduler, set uid share fix
Randy Dunlap [Tue, 22 Jan 2008 11:31:39 +0000 (03:31 -0800)]
rcu: fix section mismatch
rcu_online_cpu() should be __cpuinit instead of __devinit.
WARNING: vmlinux.o(.text+0x4b6d5): Section mismatch: reference to .init.text: (between 'rcu_cpu_notify' and 'wakeme_after_rcu')
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Tue, 22 Jan 2008 11:31:39 +0000 (03:31 -0800)]
W1: w1_therm.c is flagging 0C etc as invalid
The extra rom[0] check is flagging valid temperatures as invalid when
there is already a CRC data transmission check.
w1_therm_read_bin()
if (rom[8] == crc && rom[0])
verdict = 1;
Requiring rom[0] to be non-zero will flag as invalid temperature
conversions when the low byte is zero, specifically the temperatures 0C,
16C, 32C, 48C, -16C, -32C, and -48C.
The CRC check is produced on the device for the previous 8 bytes and is
required to ensure the data integrity in transmission. I don't see why the
extra check for rom[0] being non-zero is in there. Evgeniy Polyakov didn't
know either. Just for a check I unplugged the sensor, executed a
temperature conversion, and read the results. The read was all ff's, which
also failed the CRC, so it doesn't need to protect against a disconnected
sensor.
I have more extensive patches in the work, but these two trivial ones will
do for today. I would like to hear from people who use the ds2490 USB to
one wire dongle. 1 if you would be willing to test the patches as I
currently only have the one sensor on a short parisite powered wire, 2 if
there is any cheap sources for the ds2490.
Signed-off-by: David Fries <david@fries.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Fries [Tue, 22 Jan 2008 11:31:37 +0000 (03:31 -0800)]
W1: w1_therm.c ds18b20 decode freezing temperatures correctly
Correct the decoding of negative C temperatures. The code did a binary OR
of two bytes to make a 16 bit value, but assignd it to an integer. This
caused the value to not be sign extended and to loose that it was a
negative number in the assignment.
Before the patch (in my freezer),
w1_slave
ed fe 4b 46 7f ff 03 10 e4 : crc=e4 YES
ed fe 4b 46 7f ff 03 10 e4 t=4078
With the patch,
e3 fe 4b 46 7f ff 0d 10 81 : crc=81 YES
e3 fe 4b 46 7f ff 0d 10 81 t=-17
Signed-off-by: David Fries <david@fries.net>
Acked-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bjorn Helgaas [Tue, 22 Jan 2008 12:21:03 +0000 (07:21 -0500)]
hwmon: (it87) request only Environment Controller ports
The IT8705F and related parts are Super I/O controllers that contain
many separate devices.
Some BIOSes describe IT8705F I/O port usage under a motherboard device
(PNP0C02) with overlapping regions, e.g., 0x290-0x29f and 0x290-0x294.
The it87 driver supports only the Environment Controller, which requires
only two ISA ports, but it used to request an eight-port range. If that
range exceeds a range reported by the BIOS, as 0x290-0x297 would, the
request fails, and the it87 driver cannot claim the device.
This patch makes the it87 driver request only the two ports used for the
Environment Controller device.
Systems where this problem has been reported:
Gigabyte GA-K8N Ultra 9
Gigabyte M56S-S3
Gigabyte GA-965G-DS3
Kernel bug reports:
http://bugzilla.kernel.org/show_bug.cgi?id=9514
http://lkml.org/lkml/2007/12/4/466
Related change:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=
a7839e960675b549f06209d18283d5cee2ce9261
The patch above increases the number of PNP port resources we support.
Prior to this patch, we ignored some port resources, which masked the
it87 problem.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Ingo Molnar [Tue, 22 Jan 2008 10:24:58 +0000 (11:24 +0100)]
sched: group scheduler, set uid share fix
setting cpu share to 1 causes hangs, as reported in:
http://bugzilla.kernel.org/show_bug.cgi?id=9779
as the default share is 1024, the values of 0 and 1 can indeed
cause problems. Limit it to 2 or higher values.
These values can only be set by the root user - but still it
makes sense to protect against nonsensical values.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / log