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Mark Brown [Wed, 20 Jul 2011 21:28:58 +0000 (22:28 +0100)]
regmap: Add kerneldoc for struct regmap_config
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Linus Torvalds [Mon, 8 Aug 2011 01:23:30 +0000 (18:23 -0700)]
Linux 3.1-rc1
Linus Torvalds [Sun, 7 Aug 2011 22:52:19 +0000 (15:52 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix build with DEBUG_PAGEALLOC enabled.
Rafael J. Wysocki [Sun, 7 Aug 2011 22:26:50 +0000 (00:26 +0200)]
sh: Fix boot crash related to SCI
Commit
d006199e72a9 ("serial: sh-sci: Regtype probing doesn't need to be
fatal.") made sci_init_single() return when sci_probe_regmap() succeeds,
although it should return when sci_probe_regmap() fails. This causes
systems using the serial sh-sci driver to crash during boot.
Fix the problem by using the right return condition.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 7 Aug 2011 22:49:11 +0000 (15:49 -0700)]
arm: remove stale export of 'sha_transform'
The generic library code already exports the generic function, this was
left-over from the ARM-specific version that just got removed.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 7 Aug 2011 21:07:03 +0000 (14:07 -0700)]
arm: remove "optimized" SHA1 routines
Since commit
1eb19a12bd22 ("lib/sha1: use the git implementation of
SHA-1"), the ARM SHA1 routines no longer work. The reason? They
depended on the larger 320-byte workspace, and now the sha1 workspace is
just 16 words (64 bytes). So the assembly version would overwrite the
stack randomly.
The optimized asm version is also probably slower than the new improved
C version, so there's no reason to keep it around. At least that was
the case in git, where what appears to be the same assembly language
version was removed two years ago because the optimized C BLK_SHA1 code
was faster.
Reported-and-tested-by: Joachim Eastwood <manabian@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Sun, 7 Aug 2011 17:55:11 +0000 (18:55 +0100)]
fix rcu annotations noise in cred.h
task->cred is declared as __rcu, and access to other tasks' ->cred is,
indeed, protected. Access to current->cred does not need rcu_dereference()
at all, since only the task itself can change its ->cred. sparse, of
course, has no way of knowing that...
Add force-cast in current_cred(), make current_fsuid() et.al. use it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 7 Aug 2011 16:53:20 +0000 (09:53 -0700)]
vfs: rename 'do_follow_link' to 'should_follow_link'
Al points out that the do_follow_link() helper function really is
misnamed - it's about whether we should try to follow a symlink or not,
not about actually doing the following.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ari Savolainen [Sat, 6 Aug 2011 16:43:07 +0000 (19:43 +0300)]
Fix POSIX ACL permission check
After commit
3567866bf261: "RCUify freeing acls, let check_acl() go ahead in
RCU mode if acl is cached" posix_acl_permission is being called with an
unsupported flag and the permission check fails. This patch fixes the issue.
Signed-off-by: Ari Savolainen <ari.m.savolainen@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sun, 7 Aug 2011 05:56:03 +0000 (22:56 -0700)]
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
* 'for-linus' of git://git.open-osd.org/linux-open-osd:
ore: Make ore its own module
exofs: Rename raid engine from exofs/ios.c => ore
exofs: ios: Move to a per inode components & device-table
exofs: Move exofs specific osd operations out of ios.c
exofs: Add offset/length to exofs_get_io_state
exofs: Fix truncate for the raid-groups case
exofs: Small cleanup of exofs_fill_super
exofs: BUG: Avoid sbi realloc
exofs: Remove pnfs-osd private definitions
nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4
Linus Torvalds [Sun, 7 Aug 2011 05:45:50 +0000 (22:45 -0700)]
vfs: optimize inode cache access patterns
The inode structure layout is largely random, and some of the vfs paths
really do care. The path lookup in particular is already quite D$
intensive, and profiles show that accessing the 'inode->i_op->xyz'
fields is quite costly.
We already optimized the dcache to not unnecessarily load the d_op
structure for members that are often NULL using the DCACHE_OP_xyz bits
in dentry->d_flags, and this does something very similar for the inode
ops that are used during pathname lookup.
It also re-orders the fields so that the fields accessed by 'stat' are
together at the beginning of the inode structure, and roughly in the
order accessed.
The effect of this seems to be in the 1-2% range for an empty kernel
"make -j" run (which is fairly kernel-intensive, mostly in filename
lookup), so it's visible. The numbers are fairly noisy, though, and
likely depend a lot on exact microarchitecture. So there's more tuning
to be done.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 7 Aug 2011 05:41:50 +0000 (22:41 -0700)]
vfs: renumber DCACHE_xyz flags, remove some stale ones
Gcc tends to generate better code with small integers, including the
DCACHE_xyz flag tests - so move the common ones to be first in the list.
Also just remove the unused DCACHE_INOTIFY_PARENT_WATCHED and
DCACHE_AUTOFS_PENDING values, their users no longer exists in the source
tree.
And add a "unlikely()" to the DCACHE_OP_COMPARE test, since we want the
common case to be a nice straight-line fall-through.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 7 Aug 2011 05:12:37 +0000 (22:12 -0700)]
Merge git://git./linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: Compute protocol sequence numbers and fragment IDs using MD5.
crypto: Move md5_transform to lib/md5.c
Boaz Harrosh [Sun, 7 Aug 2011 02:22:06 +0000 (19:22 -0700)]
ore: Make ore its own module
Export everything from ore need exporting. Change Kbuild and Kconfig
to build ore.ko as an independent module. Import ore from exofs
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Sun, 7 Aug 2011 02:26:31 +0000 (19:26 -0700)]
exofs: Rename raid engine from exofs/ios.c => ore
ORE stands for "Objects Raid Engine"
This patch is a mechanical rename of everything that was in ios.c
and its API declaration to an ore.c and an osd_ore.h header. The ore
engine will later be used by the pnfs objects layout driver.
* File ios.c => ore.c
* Declaration of types and API are moved from exofs.h to a new
osd_ore.h
* All used types are prefixed by ore_ from their exofs_ name.
* Shift includes from exofs.h to osd_ore.h so osd_ore.h is
independent, include it from exofs.h.
Other than a pure rename there are no other changes. Next patch
will move the ore into it's own module and will export the API
to be used by exofs and later the layout driver
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Fri, 5 Aug 2011 22:06:04 +0000 (15:06 -0700)]
exofs: ios: Move to a per inode components & device-table
Exofs raid engine was saving on memory space by having a single layout-info,
single pid, and a single device-table, global to the filesystem. Then passing
a credential and object_id info at the io_state level, private for each
inode. It would also devise this contraption of rotating the device table
view for each inode->ino to spread out the device usage.
This is not compatible with the pnfs-objects standard, demanding that
each inode can have it's own layout-info, device-table, and each object
component it's own pid, oid and creds.
So: Bring exofs raid engine to be usable for generic pnfs-objects use by:
* Define an exofs_comp structure that holds obj_id and credential info.
* Break up exofs_layout struct to an exofs_components structure that holds a
possible array of exofs_comp and the array of devices + the size of the
arrays.
* Add a "comps" parameter to get_io_state() that specifies the ids creds
and device array to use for each IO.
This enables to keep the layout global, but the device-table view, creds
and IDs at the inode level. It only adds two 64bit to each inode, since
some of these members already existed in another form.
* ios raid engine now access layout-info and comps-info through the passed
pointers. Everything is pre-prepared by caller for generic access of
these structures and arrays.
At the exofs Level:
* Super block holds an exofs_components struct that holds the device
array, previously in layout. The devices there are in device-table
order. The device-array is twice bigger and repeats the device-table
twice so now each inode's device array can point to a random device
and have a round-robin view of the table, making it compatible to
previous exofs versions.
* Each inode has an exofs_components struct that is initialized at
load time, with it's own view of the device table IDs and creds.
When doing IO this gets passed to the io_state together with the
layout.
While preforming this change. Bugs where found where credentials with the
wrong IDs where used to access the different SB objects (super.c). As well
as some dead code. It was never noticed because the target we use does not
check the credentials.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Mon, 16 May 2011 12:26:47 +0000 (15:26 +0300)]
exofs: Move exofs specific osd operations out of ios.c
ios.c will be moving to an external library, for use by the
objects-layout-driver. Remove from it some exofs specific functions.
Also g_attr_logical_length is used both by inode.c and ios.c
move definition to the later, to keep it independent
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Tue, 16 Nov 2010 18:09:58 +0000 (20:09 +0200)]
exofs: Add offset/length to exofs_get_io_state
In future raid code we will need to know the IO offset/length
and if it's a read or write to determine some of the array
sizes we'll need.
So add a new exofs_get_rw_state() API for use when
writeing/reading. All other simple cases are left using the
old way.
The major change to this is that now we need to call
exofs_get_io_state later at inode.c::read_exec and
inode.c::write_exec when we actually know these things. So this
patch is kept separate so I can test things apart from other
changes.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
David S. Miller [Thu, 4 Aug 2011 03:50:44 +0000 (20:50 -0700)]
net: Compute protocol sequence numbers and fragment IDs using MD5.
Computers have become a lot faster since we compromised on the
partial MD4 hash which we use currently for performance reasons.
MD5 is a much safer choice, and is inline with both RFC1948 and
other ISS generators (OpenBSD, Solaris, etc.)
Furthermore, only having 24-bits of the sequence number be truly
unpredictable is a very serious limitation. So the periodic
regeneration and 8-bit counter have been removed. We compute and
use a full 32-bit sequence number.
For ipv6, DCCP was found to use a 32-bit truncated initial sequence
number (it needs 43-bits) and that is fixed here as well.
Reported-by: Dan Kaminsky <dan@doxpara.com>
Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 4 Aug 2011 02:45:10 +0000 (19:45 -0700)]
crypto: Move md5_transform to lib/md5.c
We are going to use this for TCP/IP sequence number and fragment ID
generation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sat, 6 Aug 2011 20:54:36 +0000 (13:54 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: cope with negative dentries in cifs_get_root
cifs: convert prefixpath delimiters in cifs_build_path_to_root
CIFS: Fix missing a decrement of inFlight value
cifs: demote DFS referral lookup errors to cFYI
Revert "cifs: advertise the right receive buffer size to the server"
Linus Torvalds [Sat, 6 Aug 2011 20:26:37 +0000 (13:26 -0700)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6
* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM / Runtime: Allow _put_sync() from interrupts-disabled context
PM / Domains: Fix pm_genpd_poweron()
Linus Torvalds [Sat, 6 Aug 2011 20:26:15 +0000 (13:26 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (38 commits)
acer-wmi: support Lenovo ideapad S205 wifi switch
acerhdf.c: spaces in aliased changed to *
platform-drivers-x86: ideapad-laptop: add missing ideapad_input_exit in ideapad_acpi_add error path
x86 driver: fix typo in TDP override enabling
Platform: fix samsung-laptop DMI identification for N150/N210/220/N230
dell-wmi: Add keys for Dell XPS L502X
platform-drivers-x86: samsung-q10: make dmi_check_callback return 1
Platform: Samsung Q10 backlight driver
platform-drivers-x86: intel_scu_ipc: convert to DEFINE_PCI_DEVICE_TABLE
platform-drivers-x86: intel_rar_register: convert to DEFINE_PCI_DEVICE_TABLE
platform-drivers-x86: intel_menlow: add missing return AE_OK for intel_menlow_register_sensor()
platform-drivers-x86: intel_mid_thermal: fix memory leak
platform-drivers-x86: msi-wmi: add missing sparse_keymap_free in msi_wmi_init error path
Samsung Laptop platform driver: support N510
asus-wmi: add uwb rfkill support
asus-wmi: add gps rfkill support
asus-wmi: add CWAP support and clarify the meaning of WAPF bits
asus-wmi: return proper value in store_cpufv()
asus-wmi: check for temp1 presence
asus-wmi: add thermal sensor
...
Linus Torvalds [Sat, 6 Aug 2011 19:22:30 +0000 (12:22 -0700)]
Merge branch 'stable/bug.fixes' of git://git./linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not set
xen: Fix misleading WARN message at xen_release_chunk
xen: Fix printk() format in xen/setup.c
xen/tracing: it looks like we wanted CONFIG_FTRACE
xen/self-balloon: Add dependency on tmem.
xen/balloon: Fix compile errors - missing header files.
xen/grant: Fix compile warning.
xen/pciback: remove duplicated #include
Linus Torvalds [Sat, 6 Aug 2011 19:21:19 +0000 (12:21 -0700)]
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:
Battery: sysfs_remove_battery(): possible circular locking
John Stanley [Thu, 4 Aug 2011 00:41:00 +0000 (20:41 -0400)]
savagedb: Fix typo causing regression in savage4 series video chip detection
Two additional savage4 variants were added, but the S3_SAVAGE4_SERIES
macro was incompletely modified, resulting in a false positive detection
of a savage4 card regardless of which savage card is actually present.
For non-savage4 series cards, such as a Savage/IX-MV card, this results
in garbled video and/or a hard-hang at boot time. Fix this by changing
an '||' to an '&&' in the S3_SAVAGE4_SERIES macro.
Signed-off-by: John P. Stanley <jpsinthemix@verizon.net>
Reviewed-by: Tormod Volden <debian.tormod@gmail.com>
[ The macros have incomplete parenthesis too, but whatever .. -Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Josh Triplett [Wed, 3 Aug 2011 19:19:07 +0000 (12:19 -0700)]
CodingStyle: Document the exception of not splitting user-visible strings, for grepping
Patch reviewers now recommend not splitting long user-visible strings,
such as printk messages, even if they exceed 80 columns. This avoids
breaking grep. However, that recommendation did not actually appear
anywhere in Documentation/CodingStyle.
See, for example, the thread at
http://news.gmane.org/find-root.php?message_id=%
3c1312215262.11635.15.camel%40Joe%2dLaptop%3e
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 6 Aug 2011 18:51:33 +0000 (11:51 -0700)]
vfs: show O_CLOEXE bit properly in /proc/<pid>/fdinfo/<fd> files
The CLOEXE bit is magical, and for performance (and semantic) reasons we
don't actually maintain it in the file descriptor itself, but in a
separate bit array. Which means that when we show f_flags, the CLOEXE
status is shown incorrectly: we show the status not as it is now, but as
it was when the file was opened.
Fix that by looking up the bit properly in the 'fdt->close_on_exec' bit
array.
Uli needs this in order to re-implement the pfiles program:
"For normal file descriptors (not sockets) this was the last piece of
information which wasn't available. This is all part of my 'give
Solaris users no reason to not switch' effort. I intend to offer the
code to the util-linux-ng maintainers."
Requested-by: Ulrich Drepper <drepper@akkadia.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 6 Aug 2011 18:43:08 +0000 (11:43 -0700)]
oom_ajd: don't use WARN_ONCE, just use printk_once
WARN_ONCE() is very annoying, in that it shows the stack trace that we
don't care about at all, and also triggers various user-level "kernel
oopsed" logic that we really don't care about. And it's not like the
user can do anything about the applications (sshd) in question, it's a
distro issue.
Requested-by: Andi Kleen <andi@firstfloor.org> (and many others)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mandeep Singh Baines [Sat, 6 Aug 2011 01:46:27 +0000 (18:46 -0700)]
lib/sha1: use the git implementation of SHA-1
For ChromiumOS, we use SHA-1 to verify the integrity of the root
filesystem. The speed of the kernel sha-1 implementation has a major
impact on our boot performance.
To improve boot performance, we investigated using the heavily optimized
sha-1 implementation used in git. With the git sha-1 implementation, we
see a 11.7% improvement in boot time.
10 reboots, remove slowest/fastest.
Before:
Mean: 6.58 seconds Stdev: 0.14
After (with git sha-1, this patch):
Mean: 5.89 seconds Stdev: 0.07
The other cool thing about the git SHA-1 implementation is that it only
needs 64 bytes of stack for the workspace while the original kernel
implementation needed 320 bytes.
Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Cc: Nicolas Pitre <nico@cam.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
Cc: linux-crypto@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David S. Miller [Sat, 6 Aug 2011 12:26:35 +0000 (05:26 -0700)]
sparc: Fix build with DEBUG_PAGEALLOC enabled.
arch/sparc/mm/init_64.c:1622:22: error: unused variable '__swapper_4m_tsb_phys_patch_end' [-Werror=unused-variable]
arch/sparc/mm/init_64.c:1621:22: error: unused variable '__swapper_4m_tsb_phys_patch' [-Werror=unused-variable]
Signed-off-by: David S. Miller <davem@davemloft.net>
Len Brown [Sat, 6 Aug 2011 02:16:42 +0000 (22:16 -0400)]
Merge branch 'battery' into release
Sergey Senozhatsky [Fri, 5 Aug 2011 22:34:08 +0000 (01:34 +0300)]
Battery: sysfs_remove_battery(): possible circular locking
Commit
9c921c22a7f33397a6774d7fa076db9b6a0fd669
Author: Lan Tianyu <tianyu.lan@intel.com>
ACPI / Battery: Resolve the race condition in the sysfs_remove_battery()
fixed BUG https://bugzilla.kernel.org/show_bug.cgi?id=35642 , but as a side
effect made lockdep unhappy with sysfs_remove_battery():
[14818.477168]
[14818.477170] =======================================================
[14818.477200] [ INFO: possible circular locking dependency detected ]
[14818.477221]
3.1.0-dbg-07865-g1280ea8-dirty #668
[14818.477236] -------------------------------------------------------
[14818.477257] s2ram/1599 is trying to acquire lock:
[14818.477276] (s_active#8){++++.+}, at: [<
ffffffff81169147>] sysfs_addrm_finish+0x31/0x5a
[14818.477323]
[14818.477325] but task is already holding lock:
[14818.477350] (&battery->lock){+.+.+.}, at: [<
ffffffffa0047278>] sysfs_remove_battery+0x10/0x4b [battery]
[14818.477395]
[14818.477397] which lock already depends on the new lock.
[14818.477399]
[..]
[14818.479121] stack backtrace:
[14818.479148] Pid: 1599, comm: s2ram Not tainted
3.1.0-dbg-07865-g1280ea8-dirty #668
[14818.479175] Call Trace:
[14818.479198] [<
ffffffff814828c3>] print_circular_bug+0x293/0x2a4
[14818.479228] [<
ffffffff81070cb5>] __lock_acquire+0xfe4/0x164b
[14818.479260] [<
ffffffff81169147>] ? sysfs_addrm_finish+0x31/0x5a
[14818.479288] [<
ffffffff810718d2>] lock_acquire+0x138/0x1ac
[14818.479316] [<
ffffffff81169147>] ? sysfs_addrm_finish+0x31/0x5a
[14818.479345] [<
ffffffff81168a79>] sysfs_deactivate+0x9b/0xec
[14818.479373] [<
ffffffff81169147>] ? sysfs_addrm_finish+0x31/0x5a
[14818.479405] [<
ffffffff81169147>] sysfs_addrm_finish+0x31/0x5a
[14818.479433] [<
ffffffff81167bc5>] sysfs_hash_and_remove+0x54/0x77
[14818.479461] [<
ffffffff811681b9>] sysfs_remove_file+0x12/0x14
[14818.479488] [<
ffffffff81385bf8>] device_remove_file+0x12/0x14
[14818.479516] [<
ffffffff81386504>] device_del+0x119/0x17c
[14818.479542] [<
ffffffff81386575>] device_unregister+0xe/0x1a
[14818.479570] [<
ffffffff813c6ef9>] power_supply_unregister+0x23/0x27
[14818.479601] [<
ffffffffa004729c>] sysfs_remove_battery+0x34/0x4b [battery]
[14818.479632] [<
ffffffffa004778f>] battery_notify+0x2c/0x3a [battery]
[14818.479662] [<
ffffffff8148fe82>] notifier_call_chain+0x74/0xa1
[14818.479692] [<
ffffffff810624b4>] __blocking_notifier_call_chain+0x6c/0x89
[14818.479722] [<
ffffffff810624e0>] blocking_notifier_call_chain+0xf/0x11
[14818.479751] [<
ffffffff8107e40e>] pm_notifier_call_chain+0x15/0x27
[14818.479770] [<
ffffffff8107ee1a>] enter_state+0xa7/0xd5
[14818.479782] [<
ffffffff8107e341>] state_store+0xaa/0xc0
[14818.479795] [<
ffffffff8107e297>] ? pm_async_store+0x45/0x45
[14818.479807] [<
ffffffff81248837>] kobj_attr_store+0x17/0x19
[14818.479820] [<
ffffffff81167e27>] sysfs_write_file+0x103/0x13f
[14818.479834] [<
ffffffff81109037>] vfs_write+0xad/0x13d
[14818.479847] [<
ffffffff811092b2>] sys_write+0x45/0x6c
[14818.479860] [<
ffffffff81492f92>] system_call_fastpath+0x16/0x1b
This patch introduces separate lock to struct acpi_battery to
grab in sysfs_remove_battery() instead of battery->lock.
So fix by Lan Tianyu is still there, we just grab independent lock.
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Kevin Hilman [Fri, 5 Aug 2011 19:45:20 +0000 (21:45 +0200)]
PM / Runtime: Allow _put_sync() from interrupts-disabled context
Currently the use of pm_runtime_put_sync() is not safe from
interrupts-disabled context because rpm_idle() will release the
spinlock and enable interrupts for the idle callbacks. This enables
interrupts during a time where interrupts were expected to be
disabled, and can have strange side effects on drivers that expected
interrupts to be disabled.
This is not a bug since the documentation clearly states that only
_put_sync_suspend() is safe in IRQ-safe mode.
However, pm_runtime_put_sync() could be made safe when in IRQ-safe
mode by releasing the spinlock but not re-enabling interrupts, which
is what this patch aims to do.
Problem was found when using some buggy drivers that set
pm_runtime_irq_safe() and used _put_sync() in interrupts-disabled
context.
Reported-by: Colin Cross <ccross@google.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rafael J. Wysocki [Fri, 5 Aug 2011 19:45:11 +0000 (21:45 +0200)]
PM / Domains: Fix pm_genpd_poweron()
The local variable ret is defined twice in pm_genpd_poweron(), which
causes this function to always return 0, even if the PM domain's
.power_on() callback fails, in which case an error code should be
returned.
Remove the wrong second definition of ret and additionally remove an
unnecessary definition of wait from pm_genpd_poweron().
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Lee, Chun-Yi [Sat, 30 Jul 2011 09:00:45 +0000 (17:00 +0800)]
acer-wmi: support Lenovo ideapad S205 wifi switch
The AMW0 function in acer-wmi works on Lenovo ideapad S205 for control
the wifi hardware state. We also found there have a 0x78 EC register
exposes the state of wifi hardware switch on the machine.
So, add this patch to support Lenovo ideapad S205 wifi hardware switch
in acer-wmi driver.
Reference: bko#37892
https://bugzilla.kernel.org/show_bug.cgi?id=37892
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Tested-by: Florian Heyer <heyho@flanto.de>
Signed-off-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Anton V. Boyarshinov [Thu, 28 Jul 2011 14:05:35 +0000 (18:05 +0400)]
acerhdf.c: spaces in aliased changed to *
It seems that aliases shouldn't contain spaces, as
module-init-tools uses them as delimeters in module.alias file
Signed-off-by: Anton V. Boyarshinov <boyarsh@altlinux.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Wed, 27 Jul 2011 07:27:34 +0000 (15:27 +0800)]
platform-drivers-x86: ideapad-laptop: add missing ideapad_input_exit in ideapad_acpi_add error path
In the case of ideapad_backlight_init() failure,
we need to free the resources allocated by ideapad_input_init().
Aslo drop __devexit annotation for ideapad_input_exit() because
we also call it in ideapad_acpi_add() error path.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Jesse Barnes [Fri, 22 Jul 2011 16:21:36 +0000 (09:21 -0700)]
x86 driver: fix typo in TDP override enabling
When enabling turbo, we need to set both the TDC and TDP bits. IIRC
only the TDC one actually matters, but fix it up anyway since the
current code is confusing.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Thomas Courbon [Wed, 20 Jul 2011 20:57:44 +0000 (22:57 +0200)]
Platform: fix samsung-laptop DMI identification for N150/N210/220/N230
Some samsung latop of the N150/N2{10,20,30} serie are badly detected by the samsung-laptop platform driver, see bug # 36082.
It appears that N230 identifies itself as N150/N210/N220/N230 whereas the other identify themselves as N150/N210/220.
This patch attemtp fix #36082 allowing correct identification for all the said netbook model.
Reported-by: Daniel Eklöf <daniel@ekloef.se>
Signed-off-by: Thomas Courbon <thcourbon@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Seth Forshee [Mon, 1 Aug 2011 20:46:10 +0000 (15:46 -0500)]
dell-wmi: Add keys for Dell XPS L502X
All of these keys are being reported on the keyboard
controller but are also generating WMI events. Add them
to the legacy keymap to silence the noise.
BugLink: http://bugs.launchpad.net/bugs/815914
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Mon, 18 Jul 2011 08:08:21 +0000 (16:08 +0800)]
platform-drivers-x86: samsung-q10: make dmi_check_callback return 1
We only care about if there is any successful match from the dmi table
or no match at all, we can make dmi_check_system return immediately if
we have a successful match instead of iterate thorough the whole table.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Frederick van der Wyck [Thu, 7 Jul 2011 21:05:25 +0000 (22:05 +0100)]
Platform: Samsung Q10 backlight driver
This adds backlight control on the Samsung Q10 laptop, which does not support
the SABI interface. Also tested successfully on the Dell Latitude X200.
Signed-off-by: Frederick van der Wyck <fvanderwyck@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Thu, 7 Jul 2011 02:22:46 +0000 (10:22 +0800)]
platform-drivers-x86: intel_scu_ipc: convert to DEFINE_PCI_DEVICE_TABLE
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Thu, 7 Jul 2011 02:21:15 +0000 (10:21 +0800)]
platform-drivers-x86: intel_rar_register: convert to DEFINE_PCI_DEVICE_TABLE
And also remove unused variable 'my_id_table'.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Thu, 7 Jul 2011 02:05:49 +0000 (10:05 +0800)]
platform-drivers-x86: intel_menlow: add missing return AE_OK for intel_menlow_register_sensor()
Otherwise, the error path will always be executed.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Wed, 6 Jul 2011 15:40:51 +0000 (23:40 +0800)]
platform-drivers-x86: intel_mid_thermal: fix memory leak
The memory for td_info which is allocated in initialize_sensor()
should be properly kfreed in mid_thermal_probe() error patch and
mid_thermal_remove().
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Axel Lin [Wed, 6 Jul 2011 03:05:20 +0000 (11:05 +0800)]
platform-drivers-x86: msi-wmi: add missing sparse_keymap_free in msi_wmi_init error path
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
J Witteveen [Sun, 3 Jul 2011 11:15:44 +0000 (13:15 +0200)]
Samsung Laptop platform driver: support N510
The N510 benefits from this code as well. Below is a patch to include support.
Signed-off-by: Jouke Witteveen <j.witteveen@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:41 +0000 (11:34 +0200)]
asus-wmi: add uwb rfkill support
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:40 +0000 (11:34 +0200)]
asus-wmi: add gps rfkill support
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:39 +0000 (11:34 +0200)]
asus-wmi: add CWAP support and clarify the meaning of WAPF bits
ref: http://dev.iksaif.net/projects/3/wiki/Asus-laptop_WAPF
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:38 +0000 (11:34 +0200)]
asus-wmi: return proper value in store_cpufv()
Cc: stable@kernel.org
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:37 +0000 (11:34 +0200)]
asus-wmi: check for temp1 presence
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:36 +0000 (11:34 +0200)]
asus-wmi: add thermal sensor
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:35 +0000 (11:34 +0200)]
asus-wmi: add some device ids
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:34 +0000 (11:34 +0200)]
asus-wmi: fix keyboard backlight detection
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:32 +0000 (11:34 +0200)]
asus-wmi: fix section mismatch
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:31 +0000 (11:34 +0200)]
asus-wmi: add keyboard backlight support
Based on a patch from Nate Weibley. <nweibley@gmail.com>.
Cc: Nate Weibley <nweibley@gmail.com>
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:30 +0000 (11:34 +0200)]
asus-wmi: second part of the version starts at 16 not 8
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Seth Forshee [Mon, 4 Jul 2011 07:49:20 +0000 (09:49 +0200)]
asus-wmi: Enable autorepeat for hotkey input device
The T101MT Home/Express Gate key autorepeats in hardware, but
sparse-keymap does not support hardware autorepeat. Enable the
input core's software autorepeat to emulate the hardware behavior.
Normal hotkeys are autoreleased, so the behavior of these keys
will not be affected.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Seth Forshee [Fri, 1 Jul 2011 09:34:28 +0000 (11:34 +0200)]
eeepc-wmi: Add support for T101MT Home/Express Gate key
This key is different than other hotkeys, having seperate scan
codes for press, release, and hold, so it requires some special
filtering. Press and release events are passed on, and hold events
are ignored since sparse-keymap does not support hardware
autorepeat.
Note that "Home" in the context of this button doesn't mean the
same thing as the usual Home key, and it really isn't clear at
all what is meant by "Home". The manufacurer's description of the
button indicates that it should launch some sort of touch screen
settings interface on short press and apply a desktop rotation on
long press.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Seth Forshee [Fri, 1 Jul 2011 09:34:27 +0000 (11:34 +0200)]
asus-wmi: Add callback for hotkey filtering
This is required for the T101MT home key, which behaves differently
than other hotkeys.
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Corentin Chary [Fri, 1 Jul 2011 09:34:26 +0000 (11:34 +0200)]
asus-wmi: fix hwmon/pwm1
The code was completly broken, and should never had been sent
to the kernel. That's what happens when you write code without
hardware to test it.
Cc: stable@kernel.org
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Ike Panhc [Thu, 30 Jun 2011 11:50:52 +0000 (19:50 +0800)]
ideapad: add backlight driver
When acpi_backlight=vendor in cmdline or no backlight support in acpi video
device, ideapad-laptop will register backlight device and control brightness
and backlight power via the command in VPC2004.
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Ike Panhc [Thu, 30 Jun 2011 11:50:47 +0000 (19:50 +0800)]
ideapad: let camera_power node invisiable if no camera
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Ike Panhc [Thu, 30 Jun 2011 11:50:40 +0000 (19:50 +0800)]
ideapad: define cfg bits and create sysfs node for cfg
Create /sys/devices/platform/ideapad/cfg for showing cfg value.
Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Andy Lutomirski [Tue, 24 May 2011 19:16:43 +0000 (15:16 -0400)]
Add KEY_MICMUTE and enable it on Lenovo X220
I suspect that this works on T410.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Lee, Chun-Yi [Fri, 10 Jun 2011 07:24:26 +0000 (15:24 +0800)]
msi-laptop: add MSI U270 netbook to module alias and scm list
After test, msi-laptop driver also can support MSI U270 netbook.
So, add MSI U270's dmi information to module alias and scm table
for support this machine.
Tested on MSI U270 netbook.
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Seth Forshee [Tue, 21 Jun 2011 17:00:32 +0000 (12:00 -0500)]
acer-wmi: Add support for Aspire 1830 wlan hotkey
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Julien Valroff [Fri, 24 Jun 2011 12:47:17 +0000 (08:47 -0400)]
acerhdf: add support for Aspire 1810TZ BIOS v1.3314
Would you please consider applying the following patch adding support for
the Aspire 1810TZ BIOS v.1.3314 version to the acerhdf module and avoids the
following error:
acerhdf: unknown (unsupported) BIOS version Acer/Aspire 1810TZ/v1.3314, ple=
ase report, aborting!
Not sure about the other Aspire models, but it seems at least 1810T should
also be updated.
Signed-off-by: Julien Valroff <julien@kirya.net>
Axel Lin [Wed, 8 Jun 2011 06:56:42 +0000 (14:56 +0800)]
platform-drivers-x86: dell-laptop: Remove unneeded mutex_init() for buffer_mutex
DEFINE_MUTEX() will automatically initialize buffer_mutex,
no need to call mutex_init() in dell_init().
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Lee, Chun-Yi [Tue, 31 May 2011 06:52:22 +0000 (14:52 +0800)]
acer-wmi: schedule threeg and interface sysfs for feature removal
we can now autodetect internal 3G device and already have the threeg
rfkill device. So, we plan to remove threeg sysfs support for it's no
longer necessary.
We also plan to remove interface sysfs file that exposed which ACPI-WMI
interface that was used by acer-wmi driver. It will replaced by information
log when acer-wmi initial.
We keep it around for userspace compatibility reasons, schedule removal
in 2012.
Cc: Carlos Corbacho <carlos@strangeworlds.co.uk>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Dmitry Torokhov <dtor@mail.ru>
Cc: Corentin Chary <corentincj@iksaif.net>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Lee, Chun-Yi <jlee@novell.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Linus Torvalds [Fri, 5 Aug 2011 16:44:38 +0000 (06:44 -1000)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (55 commits)
Revert "drm/i915: Try enabling RC6 by default (again)"
drm/radeon: Extended DDC Probing for ECS A740GM-M DVI-D Connector
drm/radeon: Log Subsystem Vendor and Device Information
drm/radeon: Extended DDC Probing for Connectors with Improperly Wired DDC Lines (here: Asus M2A-VM HDMI)
drm: Separate EDID Header Check from EDID Block Check
drm: Add NULL check about irq functions
drm: Fix irq install error handling
drm/radeon: fix potential NULL dereference in drivers/gpu/drm/radeon/atom.c
drm/radeon: clean reg header files
drm/debugfs: Initialise empty variable
drm/radeon/kms: add thermal chip quirk for asus 9600xt
drm/radeon: off by one in check_reg() functions
drm/radeon/kms: fix version comment due to merge timing
drm/i915: allow cache sharing policy control
drm/i915/hdmi: HDMI source product description infoframe support
drm/i915/hdmi: split infoframe setting from infoframe type code
drm: track CEA version number if present
drm/i915: Try enabling RC6 by default (again)
Revert "drm/i915/dp: Zero the DPCD data before connection probe"
drm/i915/dp: wait for previous AUX channel activity to clear
...
Linus Torvalds [Fri, 5 Aug 2011 16:42:36 +0000 (06:42 -1000)]
Merge git://git./linux/kernel/git/davem/sparc
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Size mondo queues more sanely.
sparc: Access kernel TSB using physical addressing when possible.
sparc: Fix __atomic_add_unless() return value.
sparc: use kbuild-generic support for true asm-generic header files
sparc: Use popc when possible for ffs/__ffs/ffz.
sparc: Set reboot-cmd using reboot data hypervisor call if available.
sparc: Add some missing hypervisor API groups.
sparc: Use hweight64() in popc emulation.
sparc: Use popc if possible for hweight routines.
sparc: Minor tweaks to Niagara page copy/clear.
sparc: Sanitize cpu feature detection and reporting.
Linus Torvalds [Fri, 5 Aug 2011 16:42:01 +0000 (06:42 -1000)]
Merge git://git./linux/kernel/git/davem/net
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (54 commits)
ipv6: check for IPv4 mapped addresses when connecting IPv6 sockets
mlx4: decreasing ref count when removing mac
net: Fix security_socket_sendmsg() bypass problem.
net: Cap number of elements for sendmmsg
net: sendmmsg should only return an error if no messages were sent
ixgbe: fix PHY link setup for 82599
ixgbe: fix __ixgbe_notify_dca() bail out code
igb: fix WOL on second port of i350 device
e1000e: minor re-order of #include files
e1000e: remove unnecessary check for NULL pointer
intel drivers: repair missing flush operations
macb: restore wrap bit when performing underrun cleanup
cdc_ncm: fix endianness problem.
irda: use PCI_VENDOR_ID_*
mlx4: Fixing Ethernet unicast packet steering
net: fix NULL dereferences in check_peer_redir()
bnx2x: Clear MDIO access warning during first driver load
bnx2x: Fix BCM578xx MAC test
bnx2x: Fix BCM54618se invalid link indication
bnx2x: Fix BCM84833 link
...
Linus Torvalds [Fri, 5 Aug 2011 16:41:10 +0000 (06:41 -1000)]
Merge git://git./linux/kernel/git/davem/ide
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
drivers/ide/cy82c693.c: Add missing pci_dev_put
ide: Fix irq flags madness
Jeff Layton [Fri, 5 Aug 2011 13:02:40 +0000 (09:02 -0400)]
cifs: cope with negative dentries in cifs_get_root
The loop around lookup_one_len doesn't handle the case where it might
return a negative dentry, which can cause an oops on the next pass
through the loop. Check for that and break out of the loop with an
error of -ENOENT if there is one.
Fixes the panic reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=727927
Reported-by: TR Bentley <home@trarbentley.net>
Reported-by: Iain Arnell <iarnell@gmail.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Jeff Layton [Fri, 5 Aug 2011 14:28:01 +0000 (10:28 -0400)]
cifs: convert prefixpath delimiters in cifs_build_path_to_root
Regression from 2.6.39...
The delimiters in the prefixpath are not being converted based on
whether posix paths are in effect. Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=727834
Reported-and-Tested-by: Iain Arnell <iarnell@gmail.com>
Reported-by: Patrick Oltmann <patrick.oltmann@gmx.net>
Cc: Pavel Shilovsky <piastryyy@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Konrad Rzeszutek Wilk [Thu, 4 Aug 2011 22:42:10 +0000 (18:42 -0400)]
xen/trace: Fix compile error when CONFIG_XEN_PRIVILEGED_GUEST is not set
with CONFIG_XEN and CONFIG_FTRACE set we get this:
arch/x86/xen/trace.c:22: error: ‘__HYPERVISOR_console_io’ undeclared here (not in a function)
arch/x86/xen/trace.c:22: error: array index in initializer not of integer type
arch/x86/xen/trace.c:22: error: (near initialization for ‘xen_hypercall_names’)
arch/x86/xen/trace.c:23: error: ‘__HYPERVISOR_physdev_op_compat’ undeclared here (not in a function)
Issue was that the definitions of __HYPERVISOR were not pulled
if CONFIG_XEN_PRIVILEGED_GUEST was not set.
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Max Matveev [Fri, 5 Aug 2011 10:56:30 +0000 (03:56 -0700)]
ipv6: check for IPv4 mapped addresses when connecting IPv6 sockets
When support for binding to 'mapped INADDR_ANY (::ffff.0.0.0.0)' was added
in
0f8d3c7ac3693d7b6c731bf2159273a59bf70e12 the rest of the code
wasn't told so now it's possible to bind IPv6 datagram socket to
::ffff.0.0.0.0, connect it to another IPv4 address and it will all
work except for getsockhame() which does not return the local address
as expected.
To give getsockname() something to work with check for 'mapped INADDR_ANY'
when connecting and update the in-core source addresses appropriately.
Signed-off-by: Max Matveev <makc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Yevgeny Petrilin [Thu, 4 Aug 2011 01:05:12 +0000 (01:05 +0000)]
mlx4: decreasing ref count when removing mac
For older FW versions, when a Mac address removed from Mac table,
we should set 0 for reference count for the corresponding Mac index.
Fixes a bug where removing Mac from the table still left that entry as
invalid.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Tested-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 5 Aug 2011 10:35:00 +0000 (03:35 -0700)]
Merge branch 'master' of /linux/kernel/git/jkirsher/net
Tetsuo Handa [Thu, 4 Aug 2011 14:07:40 +0000 (14:07 +0000)]
net: Fix security_socket_sendmsg() bypass problem.
The sendmmsg() introduced by commit
228e548e "net: Add sendmmsg socket system
call" is capable of sending to multiple different destination addresses.
SMACK is using destination's address for checking sendmsg() permission.
However, security_socket_sendmsg() is called for only once even if multiple
different destination addresses are passed to sendmmsg().
Therefore, we need to call security_socket_sendmsg() for each destination
address rather than only the first destination address.
Since calling security_socket_sendmsg() every time when only single destination
address was passed to sendmmsg() is a waste of time, omit calling
security_socket_sendmsg() unless destination address of previous datagram and
that of current datagram differs.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Anton Blanchard <anton@samba.org>
Cc: stable <stable@kernel.org> [3.0+]
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Blanchard [Thu, 4 Aug 2011 14:07:39 +0000 (14:07 +0000)]
net: Cap number of elements for sendmmsg
To limit the amount of time we can spend in sendmmsg, cap the
number of elements to UIO_MAXIOV (currently 1024).
For error handling an application using sendmmsg needs to retry at
the first unsent message, so capping is simpler and requires less
application logic than returning EINVAL.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable <stable@kernel.org> [3.0+]
Signed-off-by: David S. Miller <davem@davemloft.net>
Anton Blanchard [Thu, 4 Aug 2011 14:07:38 +0000 (14:07 +0000)]
net: sendmmsg should only return an error if no messages were sent
sendmmsg uses a similar error return strategy as recvmmsg but it
turns out to be a confusing way to communicate errors.
The current code stores the error code away and returns it on the next
sendmmsg call. This means a call with completely valid arguments could
get an error from a previous call.
Change things so we only return an error if no datagrams could be sent.
If less than the requested number of messages were sent, the application
must retry starting at the first failed one and if the problem is
persistent the error will be returned.
This matches the behaviour of other syscalls like read/write - it
is not an error if less than the requested number of elements are sent.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable <stable@kernel.org> [3.0+]
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Airlie [Fri, 5 Aug 2011 09:56:29 +0000 (10:56 +0100)]
Revert "drm/i915: Try enabling RC6 by default (again)"
This reverts commit
4e20fa65a3ea789510eed1a15deb9e8aab2b8202.
Francesco Allertsen still has a broken configuration.
Signed-off-by: Dave Airlie <airlied@redhat.com>
David S. Miller [Fri, 5 Aug 2011 09:38:27 +0000 (02:38 -0700)]
sparc: Size mondo queues more sanely.
There is currently no upper limit on the mondo queue sizes we'll use,
which guarentees that we'll eventually his page allocation limits, and
thus allocation failures, due to MAX_ORDER.
Cap the sizes sanely, current limits are:
CPU MONDO 2 * max_possible_cpus
DEV MONDO 256 (basically NR_IRQS)
RES MONDO 128
NRES MONDO 4
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 5 Aug 2011 07:53:57 +0000 (00:53 -0700)]
sparc: Access kernel TSB using physical addressing when possible.
On sun4v this is basically required since we point the hypervisor and
the TSB walking hardware at these tables using physical addressing
too.
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Fri, 5 Aug 2011 05:35:59 +0000 (19:35 -1000)]
Do 'shm_init_ns()' in an early pure_initcall
This isn't really critical any more, since other patches (commit
298507d4d2cf: "shm: optimize exit_shm()") have caused us to not actually
need to touch the rw_mutex unless there are actual shm segments
associated with the namespace, but we really should do tne shm_init_ns()
earlier than we do now.
This, together with commit
288d5abec831 ("Boot up with usermodehelper
disabled") will mean that we really do initialize the initial ipc
namespace data structure before we run any tasks.
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 5 Aug 2011 02:44:40 +0000 (16:44 -1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
RCUify freeing acls, let check_acl() go ahead in RCU mode if acl is cached
get rid of boilerplate switches in posix_acl.h
fix block device fallout from ->fsync() changes
Linus Torvalds [Fri, 5 Aug 2011 02:44:23 +0000 (16:44 -1000)]
Merge branch 'fixefi' of git://git./linux/kernel/git/aegl/linux-2.6
* 'fixefi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
efi: Fix argument types for SetVariable() for ia64
Linus Torvalds [Fri, 5 Aug 2011 02:44:04 +0000 (16:44 -1000)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
slab, lockdep: Annotate the locks before using them
lockdep: Clear whole lockdep_map on initialization
slab, lockdep: Annotate slab -> rcu -> debug_object -> slab
lockdep: Fix up warning
lockdep: Fix trace_hardirqs_on_caller()
futex: Fix regression with read only mappings
Linus Torvalds [Fri, 5 Aug 2011 02:43:43 +0000 (16:43 -1000)]
Merge branch 'next' of git://git./linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
dmaengine: use DEFINE_IDR for static initialization
ioat: fix xor_idx_to_desc
Avoid section type conflict in dma/ioat/dma_v3.c
ioat: Adding PCI IDs for IOAT devices on SandyBridge platforms
David Brown [Thu, 4 Aug 2011 16:24:31 +0000 (09:24 -0700)]
cpuidle: Consistent spelling of cpuidle_idle_call()
Commit
a0bfa1373859e9d11dc92561a8667588803e42d8 mispells
cpuidle_idle_call() on ARM and SH code. Fix this to be consistent.
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: x86@kernel.org
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: David Brown <davidb@codeaurora.org>
[ Also done by Mark Brown - th ebug has been around forever, and was
noticed in -next, but the idle tree never picked it up. Bad bad bad ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matthew Garrett [Wed, 6 Jul 2011 20:48:49 +0000 (16:48 -0400)]
efi: Fix argument types for SetVariable() for ia64
The spec says this takes uint32 for attributes, not uintn.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Boaz Harrosh [Thu, 4 Aug 2011 03:44:16 +0000 (20:44 -0700)]
exofs: Fix truncate for the raid-groups case
In the general raid-group case the truncate was wrong in that
it did not also fix the object length of the neighboring groups.
There are two bad cases in the old code:
1. Space that should be freed was not.
2. If a file That was big is truncated small, then made bigger
again, the holes would not contain zeros but could expose old data.
(If the growing of the file expands to more than a full
groups cycle + group size (> S + T))
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Thu, 4 Aug 2011 03:18:01 +0000 (20:18 -0700)]
exofs: Small cleanup of exofs_fill_super
Small cleanup that unifies duplicated code used in both the
error and success cases
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Thu, 28 Jul 2011 00:51:53 +0000 (17:51 -0700)]
exofs: BUG: Avoid sbi realloc
Since the beginning we realloced the sbi structure when a bigger
then one device table was specified. (I know that was really stupid).
Then much later when "register bdi" was added (By Jens) it was
registering the pointer to sbi->bdi before the realloc.
We never saw this problem because up till now the realloc did not
do anything since the device table was small enough to fit in the
original allocation. But once we starting testing with large device
tables (Bigger then 28) we noticed the crash of writeback operating
on a deallocated pointer.
* Avoid the all mess by allocating the device-table as a second array
and get rid of the variable-sized structure and the rest of this
mess.
* Take the chance to clean near by structures and comments.
* Add a needed dprint on startup to indicate the loaded layout.
* Also move the bdi registration to the very end because it will
only fail in a low memory, which will probably fail before hand.
There are many more likely causes to not load before that. This
way the error handling is made simpler. (Just doing this would be
enough to fix the BUG)
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Boaz Harrosh [Tue, 2 Feb 2010 13:56:53 +0000 (15:56 +0200)]
exofs: Remove pnfs-osd private definitions
Now that pnfs-osd has hit mainline we can remove exofs's
private header. (And the FIXME comment)
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>