]> git.karo-electronics.de Git - karo-tx-linux.git/log
karo-tx-linux.git
13 years agonfsd: break lease on unlink, link, and rename
J. Bruce Fields [Tue, 11 Jan 2011 18:55:46 +0000 (13:55 -0500)]
nfsd: break lease on unlink, link, and rename

Any change to any of the links pointing to an entry should also break
delegations.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: break lease on nfsd setattr
J. Bruce Fields [Tue, 11 Jan 2011 17:54:39 +0000 (12:54 -0500)]
nfsd4: break lease on nfsd setattr

Leases (delegations) should really be broken on any metadata change, not
just on size change.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd: don't support msnfs export option
J. Bruce Fields [Tue, 11 Jan 2011 19:07:12 +0000 (14:07 -0500)]
nfsd: don't support msnfs export option

We've long had these pointless #ifdef MSNFS's sprinkled throughout the
code--pointless because MSNFS is always defined (and we give no config
option to make that easy to change).  So we could just remove the
ifdef's and compile the resulting code unconditionally.

But as long as we're there: why not just rip out this code entirely?
The only purpose is to implement the "msnfs" export option which turns
on Windows-like behavior in some cases, and:

- the export option isn't documented anywhere;
- the userland utilities (which would need to be able to parse
  "msnfs" in an export file) don't support it;
- I don't know how to maintain this, as I don't know what the
  proper behavior is; and
- google shows no evidence that anyone has ever used this.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: initialize cb_per_client
J. Bruce Fields [Thu, 13 Jan 2011 22:08:19 +0000 (17:08 -0500)]
nfsd4: initialize cb_per_client

Otherwise a callback that is aborted before it runs will result in a
list_del on an uninitialized list head.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: allow restarting callbacks
J. Bruce Fields [Mon, 10 Jan 2011 21:44:41 +0000 (16:44 -0500)]
nfsd4: allow restarting callbacks

If we lose the backchannel and then the client repairs the problem,
resend any callbacks.

We use a new cb_done flag to track whether there is still work to be
done for the callback or whether it can be destroyed with the rpc.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: simplify nfsd4_cb_prepare
J. Bruce Fields [Mon, 10 Jan 2011 21:37:51 +0000 (16:37 -0500)]
nfsd4: simplify nfsd4_cb_prepare

Remove handling for a nonexistant case (status && !-EAGAIN).

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: give out delegations more quickly in 4.1 case
J. Bruce Fields [Sat, 11 Dec 2010 00:02:49 +0000 (19:02 -0500)]
nfsd4: give out delegations more quickly in 4.1 case

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: add helper function to run callbacks
J. Bruce Fields [Fri, 10 Dec 2010 22:37:44 +0000 (17:37 -0500)]
nfsd4: add helper function to run callbacks

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: make sure sequence flags are set after destroy_session
J. Bruce Fields [Thu, 9 Dec 2010 20:52:19 +0000 (15:52 -0500)]
nfsd4: make sure sequence flags are set after destroy_session

If this loses any backchannel, make sure we have a chance to notice that
and set the sequence flags.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: re-probe callback on connection loss
J. Bruce Fields [Thu, 18 Nov 2010 13:34:12 +0000 (08:34 -0500)]
nfsd4: re-probe callback on connection loss

This makes sure we set the sequence flag when necessary.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: set sequence flag when backchannel is down
J. Bruce Fields [Thu, 18 Nov 2010 13:30:33 +0000 (08:30 -0500)]
nfsd4: set sequence flag when backchannel is down

Implement the SEQ4_STATUS_CB_PATH_DOWN flag.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: keep finer-grained callback status
J. Bruce Fields [Fri, 30 Apr 2010 22:51:44 +0000 (18:51 -0400)]
nfsd4: keep finer-grained callback status

Distinguish between when the callback channel is known to be down, and
when it is not yet confirmed.  This will be useful in the 4.1 case.

Also, we don't seem to be using the fact that this field is atomic.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
13 years agorpc: allow xprt_class->setup to return a preexisting xprt
J. Bruce Fields [Wed, 8 Dec 2010 18:48:19 +0000 (13:48 -0500)]
rpc: allow xprt_class->setup to return a preexisting xprt

This allows us to reuse the xprt associated with a server connection if
one has already been set up.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agorpc: keep backchannel xprt as long as server connection
J. Bruce Fields [Wed, 8 Dec 2010 17:45:44 +0000 (12:45 -0500)]
rpc: keep backchannel xprt as long as server connection

Multiple backchannels can share the same tcp connection; from rfc 5661 section
2.10.3.1:

A connection's association with a session is not exclusive.  A
connection associated with the channel(s) of one session may be
simultaneously associated with the channel(s) of other sessions
including sessions associated with other client IDs.

However, multiple backchannels share a connection, they must all share
the same xid stream (hence the same rpc_xprt); the only way we have to
match replies with calls at the rpc layer is using the xid.

So, keep the rpc_xprt around as long as the connection lasts, in case
we're asked to use the connection as a backchannel again.

Requests to create new backchannel clients over a given server
connection should results in creating new clients that reuse the
existing rpc_xprt.

But to start, just reject attempts to associate multiple rpc_xprt's with
the same underlying bc_xprt.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agorpc: move sk_bc_xprt to svc_xprt
J. Bruce Fields [Wed, 1 Dec 2010 00:15:01 +0000 (19:15 -0500)]
rpc: move sk_bc_xprt to svc_xprt

This seems obviously transport-level information even if it's currently
used only by the server socket code.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: allow backchannel recovery
J. Bruce Fields [Tue, 15 Jun 2010 21:25:45 +0000 (17:25 -0400)]
nfsd4: allow backchannel recovery

Now that we have a list of connections to choose from, we can teach the
callback code to just pick a suitable connection and use that, instead
of insisting on forever using the connection that the first
create_session was sent with.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
13 years agonfsd4: support BIND_CONN_TO_SESSION
J. Bruce Fields [Tue, 5 Oct 2010 03:12:59 +0000 (23:12 -0400)]
nfsd4: support BIND_CONN_TO_SESSION

Basic xdr and processing for BIND_CONN_TO_SESSION.  This adds a
connection to the list of connections associated with a session.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: modify session list under cl_lock
J. Bruce Fields [Tue, 15 Jun 2010 18:22:37 +0000 (14:22 -0400)]
nfsd4: modify session list under cl_lock

We want to traverse this from the callback code.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
13 years agoDocumentation: fl_mylease no longer exists
J. Bruce Fields [Tue, 11 Jan 2011 15:30:48 +0000 (10:30 -0500)]
Documentation: fl_mylease no longer exists

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoMerge commit 'v2.6.37' into for-2.6.38-incoming
J. Bruce Fields [Tue, 11 Jan 2011 15:28:36 +0000 (10:28 -0500)]
Merge commit 'v2.6.37' into for-2.6.38-incoming

I made a slight mess of Documentation/filesystems/Locking; resolve
conflicts with upstream before fixing it up.

13 years agoDocumentation: don't remove lock manager fl_release_private
J. Bruce Fields [Tue, 11 Jan 2011 15:12:37 +0000 (10:12 -0500)]
Documentation: don't remove lock manager fl_release_private

I thought I'd removed the last user of this, but missed
fs/locks.c:lease_release_private_callback().  Thanks to Christoph for
pointing this out.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoLinux 2.6.37 v2.6.37
Linus Torvalds [Wed, 5 Jan 2011 00:50:19 +0000 (16:50 -0800)]
Linux 2.6.37

13 years agonfs4: set source address when callback is generated
Takuma Umeya [Wed, 15 Dec 2010 05:09:01 +0000 (14:09 +0900)]
nfs4: set source address when callback is generated

when callback is generated in NFSv4 server, it doesn't set the source
address. When an alias IP is utilized on NFSv4 server and suppose the
client is accessing via that alias IP (e.g. eth0:0), the client invokes
the callback to the IP address that is set on the original device (e.g.
eth0). This behavior results in timeout of xprt.
The patch sets the IP address that the client should invoke callback to.

Signed-off-by: Takuma Umeya <tumeya@redhat.com>
[bfields@redhat.com: Simplify gen_callback arguments, use helper function]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: return nfs errno from name_to_id functions
J. Bruce Fields [Tue, 4 Jan 2011 22:53:52 +0000 (17:53 -0500)]
nfsd4: return nfs errno from name_to_id functions

This avoids the need for the confusing ESRCH mapping.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: remove outdated pathname-comments
J. Bruce Fields [Tue, 4 Jan 2011 22:38:41 +0000 (17:38 -0500)]
nfsd4: remove outdated pathname-comments

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: move idmap and acl header files into fs/nfsd
J. Bruce Fields [Tue, 4 Jan 2011 22:37:15 +0000 (17:37 -0500)]
nfsd4: move idmap and acl header files into fs/nfsd

These are internal nfsd interfaces.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: name->id mapping should fail with BADOWNER not BADNAME
J. Bruce Fields [Tue, 4 Jan 2011 23:02:15 +0000 (18:02 -0500)]
nfsd4: name->id mapping should fail with BADOWNER not BADNAME

According to rfc 3530 BADNAME is for strings that represent paths;
BADOWNER is for user/group names that don't map.

And the too-long name should probably be BADOWNER as well; it's
effectively the same as if we couldn't map it.

Cc: stable@kernel.org
Reported-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 4 Jan 2011 21:55:49 +0000 (13:55 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ipv4/route.c: respect prefsrc for local routes
  bridge: stp: ensure mac header is set
  bridge: fix br_multicast_ipv6_rcv for paged skbs
  atl1: fix oops when changing tx/rx ring params
  drivers/atm/atmtcp.c: add missing atm_dev_put
  starfire: Fix dma_addr_t size test for MIPS
  tg3: fix return value check in tg3_read_vpd()
  Broadcom CNIC core network driver: fix mem leak on allocation failures in cnic_alloc_uio_rings()
  ISDN, Gigaset: Fix memory leak in do_disconnect_req()
  CAN: Use inode instead of kernel address for /proc file
  skfp: testing the wrong variable in skfp_driver_init()
  ppp: allow disabling multilink protocol ID compression
  ehea: Avoid changing vlan flags
  ueagle-atm: fix PHY signal initialization race

13 years agolocks: minor setlease cleanup
J. Bruce Fields [Sun, 31 Oct 2010 16:35:48 +0000 (12:35 -0400)]
locks: minor setlease cleanup

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agolocks: eliminate fl_mylease callback
J. Bruce Fields [Sun, 31 Oct 2010 04:04:44 +0000 (00:04 -0400)]
locks: eliminate fl_mylease callback

The nfs server only supports read delegations for now, so we don't care
how conflicts are determined.  All we care is that unlocks are
recognized as matching the leases they are meant to remove.  After the
last patch, a comparison of struct files will work for that purpose.  So
we no longer need this callback.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: use a single struct file for delegations
J. Bruce Fields [Sun, 31 Oct 2010 03:35:04 +0000 (23:35 -0400)]
nfsd4: use a single struct file for delegations

When we converted to sharing struct filess between nfs4 opens I went too
far and also used the same mechanism for delegations.  But keeping
a reference to the struct file ensures it will outlast the lease, and
allows us to remove the lease with the same file as we added it.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd4: eliminate lease delete callback
J. Bruce Fields [Sat, 30 Oct 2010 21:41:26 +0000 (17:41 -0400)]
nfsd4: eliminate lease delete callback

nfsd controls the lifetime of the lease, not the lock code, so there's
no need for this callback on lease destruction.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agosvcrpc: ensure cache_check caller sees updated entry
J. Bruce Fields [Tue, 4 Jan 2011 19:12:47 +0000 (14:12 -0500)]
svcrpc: ensure cache_check caller sees updated entry

Supposes cache_check runs simultaneously with an update on a different
CPU:

cache_check task doing update
^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^

1. test for CACHE_VALID 1'. set entry->data
   & !CACHE_NEGATIVE

2. use entry->data 2'. set CACHE_VALID

If the two memory writes performed in step 1' and 2' appear misordered
with respect to the reads in step 1 and 2, then the caller could get
stale data at step 2 even though it saw CACHE_VALID set on the cache
entry.

Add memory barriers to prevent this.

Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agosvcrpc: take lock on turning entry NEGATIVE in cache_check
J. Bruce Fields [Mon, 3 Jan 2011 20:10:27 +0000 (15:10 -0500)]
svcrpc: take lock on turning entry NEGATIVE in cache_check

We attempt to turn a cache entry negative in place.  But that entry may
already have been filled in by some other task since we last checked
whether it was valid, so we could be modifying an already-valid entry.
If nothing else there's a likely leak in such a case when the entry is
eventually put() and contents are not freed because it has
CACHE_NEGATIVE set.

So, take the cache_lock just as sunrpc_cache_update() does.

Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd: remove some unnecessary dropit handling
J. Bruce Fields [Mon, 3 Jan 2011 03:13:18 +0000 (22:13 -0500)]
nfsd: remove some unnecessary dropit handling

We no longer need a few of these special cases.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd: stop translating EAGAIN to nfserr_dropit
J. Bruce Fields [Mon, 3 Jan 2011 03:05:33 +0000 (22:05 -0500)]
nfsd: stop translating EAGAIN to nfserr_dropit

We no longer need this.

Also, EWOULDBLOCK is generally a synonym for EAGAIN, but that may not be
true on all architectures, so map it as well.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agosvcrpc: simpler request dropping
J. Bruce Fields [Mon, 3 Jan 2011 02:56:36 +0000 (21:56 -0500)]
svcrpc: simpler request dropping

Currently we use -EAGAIN returns to determine when to drop a deferred
request.  On its own, that is error-prone, as it makes us treat -EAGAIN
returns from other functions specially to prevent inadvertent dropping.

So, use a flag on the request instead.

Returning an error on request deferral is still required, to prevent
further processing, but we no longer need worry that an error return on
its own could result in a drop.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agosvcrpc: avoid double reply caused by deferral race
J. Bruce Fields [Mon, 3 Jan 2011 02:28:34 +0000 (21:28 -0500)]
svcrpc: avoid double reply caused by deferral race

Commit d29068c431599fa "sunrpc: Simplify cache_defer_req and related
functions." asserted that cache_check() could determine success or
failure of cache_defer_req() by checking the CACHE_PENDING bit.

This isn't quite right.

We need to know whether cache_defer_req() created a deferred request,
in which case sending an rpc reply has become the responsibility of the
deferred request, and it is important that we not send our own reply,
resulting in two different replies to the same request.

And the CACHE_PENDING bit doesn't tell us that; we could have
succesfully created a deferred request at the same time as another
thread cleared the CACHE_PENDING bit.

So, partially revert that commit, to ensure that cache_check() returns
-EAGAIN if and only if a deferred request has been created.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: NeilBrown <neilb@suse.de>
13 years agonfsd: don't drop requests on -ENOMEM
J. Bruce Fields [Sat, 1 Jan 2011 20:43:50 +0000 (15:43 -0500)]
nfsd: don't drop requests on -ENOMEM

We never want to drop a request if we could return a JUKEBOX/DELAY error
instead; so, convert to nfserr_jukebox and let nfsd_dispatch() convert
that to a dropit error as a last resort if JUKEBOX/DELAY is unavailable
(as in the NFSv2 case).

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agonfsd: declare several functions of nfs4callback as static
Kirill A. Shutemov [Thu, 16 Dec 2010 13:25:54 +0000 (15:25 +0200)]
nfsd: declare several functions of nfs4callback as static

setup_callback_client(), nfsd4_release_cb() and nfsd4_process_cb_update()
do not have users outside the translation unit. Let's declare it as
static.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoSUNRPC: Remove more code when NFSD_DEPRECATED is not configured
J. Bruce Fields [Tue, 4 Jan 2011 18:31:45 +0000 (13:31 -0500)]
SUNRPC: Remove more code when NFSD_DEPRECATED is not configured

Signed-off-by: NeilBrown <neilb@suse.de>
[bfields@redhat.com: moved svcauth_unix_purge outside ifdef's.]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agosvcrpc: modifying valid sunrpc cache entries is racy
J. Bruce Fields [Fri, 24 Dec 2010 19:03:38 +0000 (14:03 -0500)]
svcrpc: modifying valid sunrpc cache entries is racy

Once a sunrpc cache entry is VALID, we should be replacing it (and
allowing any concurrent users to destroy it on last put) instead of
trying to update it in place.

Otherwise someone referencing the ip_map we're modifying here could try
to use the m_client just as we're putting the last reference.

The bug should only be seen by users of the legacy nfsd interfaces.

(Thanks to Neil for suggestion to use sunrpc_invalidate.)

Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoipv4/route.c: respect prefsrc for local routes
Joel Sing [Mon, 3 Jan 2011 20:24:20 +0000 (20:24 +0000)]
ipv4/route.c: respect prefsrc for local routes

The preferred source address is currently ignored for local routes,
which results in all local connections having a src address that is the
same as the local dst address. Fix this by respecting the preferred source
address when it is provided for local routes.

This bug can be demonstrated as follows:

 # ifconfig dummy0 192.168.0.1
 # ip route show table local | grep local.*dummy0
 local 192.168.0.1 dev dummy0  proto kernel  scope host  src 192.168.0.1
 # ip route change table local local 192.168.0.1 dev dummy0 \
     proto kernel scope host src 127.0.0.1
 # ip route show table local | grep local.*dummy0
 local 192.168.0.1 dev dummy0  proto kernel  scope host  src 127.0.0.1

We now establish a local connection and verify the source IP
address selection:

 # nc -l 192.168.0.1 3128 &
 # nc 192.168.0.1 3128 &
 # netstat -ant | grep 192.168.0.1:3128.*EST
 tcp        0      0 192.168.0.1:3128        192.168.0.1:33228 ESTABLISHED
 tcp        0      0 192.168.0.1:33228       192.168.0.1:3128  ESTABLISHED

Signed-off-by: Joel Sing <jsing@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoremove trim_fs method from Documentation/filesystems/Locking
Christoph Hellwig [Tue, 4 Jan 2011 06:14:24 +0000 (07:14 +0100)]
remove trim_fs method from Documentation/filesystems/Locking

The ->trim_fs has been removed meanwhile, so remove it from the documentation
as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Tue, 4 Jan 2011 00:37:01 +0000 (16:37 -0800)]
Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: pxa: fix page table corruption on resume
  ARM: it8152: add IT8152_LAST_IRQ definition to fix build error
  ARM: pxa: PXA_ESERIES depends on FB_W100.
  ARM: 6605/1: Add missing include "asm/memory.h"
  ARM: 6540/1: Stop irqsoff trace on return to user
  ARM: 6537/1: update Nomadik, U300 and Ux500 maintainers
  ARM: 6536/1: Add missing SZ_{32,64,128}
  ARM: fix cache-feroceon-l2 after stack based kmap_atomic()
  ARM: fix cache-xsc3l2 after stack based kmap_atomic()
  ARM: get rid of kmap_high_l1_vipt()
  ARM: smp: avoid incrementing mm_users on CPU startup
  ARM: pxa: PXA_ESERIES depends on FB_W100.

13 years agoarch/mn10300/kernel/irq.c: fix build
Andrew Morton [Mon, 3 Jan 2011 22:59:11 +0000 (14:59 -0800)]
arch/mn10300/kernel/irq.c: fix build

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=25702

Reported-by: Martin Ettl <ettl.martin@gmx.de>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoima: fix add LSM rule bug
Mimi Zohar [Mon, 3 Jan 2011 22:59:10 +0000 (14:59 -0800)]
ima: fix add LSM rule bug

If security_filter_rule_init() doesn't return a rule, then not everything
is as fine as the return code implies.

This bug only occurs when the LSM (eg. SELinux) is disabled at runtime.

Adding an empty LSM rule causes ima_match_rules() to always succeed,
ignoring any remaining rules.

 default IMA TCB policy:
  # PROC_SUPER_MAGIC
  dont_measure fsmagic=0x9fa0
  # SYSFS_MAGIC
  dont_measure fsmagic=0x62656572
  # DEBUGFS_MAGIC
  dont_measure fsmagic=0x64626720
  # TMPFS_MAGIC
  dont_measure fsmagic=0x01021994
  # SECURITYFS_MAGIC
  dont_measure fsmagic=0x73636673

  < LSM specific rule >
  dont_measure obj_type=var_log_t

  measure func=BPRM_CHECK
  measure func=FILE_MMAP mask=MAY_EXEC
  measure func=FILE_CHECK mask=MAY_READ uid=0

Thus without the patch, with the boot parameters 'tcb selinux=0', adding
the above 'dont_measure obj_type=var_log_t' rule to the default IMA TCB
measurement policy, would result in nothing being measured.  The patch
prevents the default TCB policy from being replaced.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Cc: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Cc: David Safford <safford@watson.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
Russell King [Mon, 3 Jan 2011 22:55:21 +0000 (22:55 +0000)]
Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6

13 years agobridge: stp: ensure mac header is set
Florian Westphal [Mon, 3 Jan 2011 04:16:28 +0000 (04:16 +0000)]
bridge: stp: ensure mac header is set

commit bf9ae5386bca8836c16e69ab8fdbe46767d7452a
(llc: use dev_hard_header) removed the
skb_reset_mac_header call from llc_mac_hdr_init.

This seems fine itself, but br_send_bpdu() invokes ebtables LOCAL_OUT.

We oops in ebt_basic_match() because it assumes eth_hdr(skb) returns
a meaningful result.

Cc: acme@ghostprotocols.net
References: https://bugzilla.kernel.org/show_bug.cgi?id=24532
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 3 Jan 2011 19:51:22 +0000 (11:51 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf: Fix callchain hit bad cast on ascii display
  arch/x86/oprofile/op_model_amd.c: Perform initialisation on a single CPU
  watchdog: Improve initialisation error message and documentation

13 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Mon, 3 Jan 2011 19:50:26 +0000 (11:50 -0800)]
Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  [media] em28xx: radio_fops should also use unlocked_ioctl
  [media] wm8775: Revert changeset fcb9757333 to avoid a regression
  [media] cx25840: Prevent device probe failure due to volume control ERANGE error

13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Mon, 3 Jan 2011 19:48:54 +0000 (11:48 -0800)]
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx:
  dmaengine: provide dummy functions for DMA_ENGINE=n
  mv_xor: fix race in tasklet function

13 years agoname_to_dev_t() must not call __init code
Jan Beulich [Mon, 3 Jan 2011 15:07:02 +0000 (15:07 +0000)]
name_to_dev_t() must not call __init code

The function can't be __init itself (being called from some sysfs
handler), and hence none of the functions it calls can be either.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agobridge: fix br_multicast_ipv6_rcv for paged skbs
Tomas Winkler [Mon, 3 Jan 2011 19:26:08 +0000 (11:26 -0800)]
bridge: fix br_multicast_ipv6_rcv for paged skbs

use pskb_may_pull to access ipv6 header correctly for paged skbs
It was omitted in the bridge code leading to crash in blind
__skb_pull

since the skb is cloned undonditionally we also simplify the
the exit path

this fixes bug https://bugzilla.kernel.org/show_bug.cgi?id=25202

Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 IEEE 802.11: authenticated
Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 IEEE 802.11: associated (aid 2)
Dec 15 14:36:40 User-PC hostapd: wlan0: STA 00:15:00:60:5d:34 RADIUS: starting accounting session 4D0608A3-00000005
Dec 15 14:36:41 User-PC kernel: [175576.120287] ------------[ cut here ]------------
Dec 15 14:36:41 User-PC kernel: [175576.120452] kernel BUG at include/linux/skbuff.h:1178!
Dec 15 14:36:41 User-PC kernel: [175576.120609] invalid opcode: 0000 [#1] SMP
Dec 15 14:36:41 User-PC kernel: [175576.120749] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/uevent
Dec 15 14:36:41 User-PC kernel: [175576.121035] Modules linked in: approvals binfmt_misc bridge stp llc parport_pc ppdev arc4 iwlagn snd_hda_codec_realtek iwlcore i915 snd_hda_intel mac80211 joydev snd_hda_codec snd_hwdep snd_pcm snd_seq_midi drm_kms_helper snd_rawmidi drm snd_seq_midi_event snd_seq snd_timer snd_seq_device cfg80211 eeepc_wmi usbhid psmouse intel_agp i2c_algo_bit intel_gtt uvcvideo agpgart videodev sparse_keymap snd shpchp v4l1_compat lp hid video serio_raw soundcore output snd_page_alloc ahci libahci atl1c
Dec 15 14:36:41 User-PC kernel: [175576.122712]
Dec 15 14:36:41 User-PC kernel: [175576.122769] Pid: 0, comm: kworker/0:0 Tainted: G        W   2.6.37-rc5-wl+ #3 1015PE/1016P
Dec 15 14:36:41 User-PC kernel: [175576.123012] EIP: 0060:[<f83edd65>] EFLAGS: 00010283 CPU: 1
Dec 15 14:36:41 User-PC kernel: [175576.123193] EIP is at br_multicast_rcv+0xc95/0xe1c [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.123362] EAX: 0000001c EBX: f5626318 ECX: 00000000 EDX: 00000000
Dec 15 14:36:41 User-PC kernel: [175576.123550] ESI: ec512262 EDI: f5626180 EBP: f60b5ca0 ESP: f60b5bd8
Dec 15 14:36:41 User-PC kernel: [175576.123737]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Dec 15 14:36:41 User-PC kernel: [175576.123902] Process kworker/0:0 (pid: 0, ti=f60b4000 task=f60a8000 task.ti=f60b0000)
Dec 15 14:36:41 User-PC kernel: [175576.124137] Stack:
Dec 15 14:36:41 User-PC kernel: [175576.124181]  ec556500 f6d06800 f60b5be8 c01087d8 ec512262 00000030 00000024 f5626180
Dec 15 14:36:41 User-PC kernel: [175576.124181]  f572c200 ef463440 f5626300 3affffff f6d06dd0 e60766a4 000000c4 f6d06860
Dec 15 14:36:41 User-PC kernel: [175576.124181]  ffffffff ec55652c 00000001 f6d06844 f60b5c64 c0138264 c016e451 c013e47d
Dec 15 14:36:41 User-PC kernel: [175576.124181] Call Trace:
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01087d8>] ? sched_clock+0x8/0x10
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0138264>] ? enqueue_entity+0x174/0x440
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c016e451>] ? sched_clock_cpu+0x131/0x190
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c013e47d>] ? select_task_rq_fair+0x2ad/0x730
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0524fc1>] ? nf_iterate+0x71/0x90
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4914>] ? br_handle_frame_finish+0x184/0x220 [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4790>] ? br_handle_frame_finish+0x0/0x220 [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e46e9>] ? br_handle_frame+0x189/0x230 [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4790>] ? br_handle_frame_finish+0x0/0x220 [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f83e4560>] ? br_handle_frame+0x0/0x230 [bridge]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04ff026>] ? __netif_receive_skb+0x1b6/0x5b0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04f7a30>] ? skb_copy_bits+0x110/0x210
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0503a7f>] ? netif_receive_skb+0x6f/0x80
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cb74c>] ? ieee80211_deliver_skb+0x8c/0x1a0 [mac80211]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cc836>] ? ieee80211_rx_handlers+0xeb6/0x1aa0 [mac80211]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04ff1f0>] ? __netif_receive_skb+0x380/0x5b0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c016e242>] ? sched_clock_local+0xb2/0x190
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c012b688>] ? default_spin_lock_flags+0x8/0x10
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d83df>] ? _raw_spin_lock_irqsave+0x2f/0x50
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82cd621>] ? ieee80211_prepare_and_rx_handle+0x201/0xa90 [mac80211]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f82ce154>] ? ieee80211_rx+0x2a4/0x830 [mac80211]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f815a8d6>] ? iwl_update_stats+0xa6/0x2a0 [iwlcore]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8499212>] ? iwlagn_rx_reply_rx+0x292/0x3b0 [iwlagn]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d83df>] ? _raw_spin_lock_irqsave+0x2f/0x50
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8483697>] ? iwl_rx_handle+0xe7/0x350 [iwlagn]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<f8486ab7>] ? iwl_irq_tasklet+0xf7/0x5c0 [iwlagn]
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01aece1>] ? __rcu_process_callbacks+0x201/0x2d0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150d05>] ? tasklet_action+0xc5/0x100
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150a07>] ? __do_softirq+0x97/0x1d0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d910c>] ? nmi_stack_correct+0x2f/0x34
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0150970>] ? __do_softirq+0x0/0x1d0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  <IRQ>
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01508f5>] ? irq_exit+0x65/0x70
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05df062>] ? do_IRQ+0x52/0xc0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c01036b0>] ? common_interrupt+0x30/0x38
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c03a1fc2>] ? intel_idle+0xc2/0x160
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c04daebb>] ? cpuidle_idle_call+0x6b/0x100
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c0101dea>] ? cpu_idle+0x8a/0xf0
Dec 15 14:36:41 User-PC kernel: [175576.124181]  [<c05d2702>] ? start_secondary+0x1e8/0x1ee

Cc: David Miller <davem@davemloft.net>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoatl1: fix oops when changing tx/rx ring params
J. K. Cliburn [Sat, 1 Jan 2011 05:02:12 +0000 (05:02 +0000)]
atl1: fix oops when changing tx/rx ring params

Commit 3f5a2a713aad28480d86b0add00c68484b54febc zeroes out the statistics
message block (SMB) and coalescing message block (CMB) when adapter ring
resources are freed.  This is desirable behavior, but, as a side effect,
the commit leads to an oops when atl1_set_ringparam() attempts to alter
the number of rx or tx elements in the ring buffer (by using ethtool
-G, for example).  We don't want SMB or CMB to change during this
operation.

Modify atl1_set_ringparam() to preserve SMB and CMB when changing ring
parameters.

Cc: stable@kernel.org
Signed-off-by: Jay Cliburn <jcliburn@gmail.com>
Reported-by: Tõnu Raitviir <jussuf@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...
Ingo Molnar [Mon, 3 Jan 2011 18:59:24 +0000 (19:59 +0100)]
Merge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/urgent

13 years agoARM: pxa: fix page table corruption on resume
Aric D. Blumer [Wed, 29 Dec 2010 16:18:29 +0000 (11:18 -0500)]
ARM: pxa: fix page table corruption on resume

Before this patch, the following error would sometimes occur after a
resume on pxa3xx:

    /path/to/mm/memory.c:144: bad pmd 8040542e.

The problem was that a temporary page table mapping was being improperly
restored.

The PXA3xx resume code creates a temporary mapping of resume_turn_on_mmu
to avoid a prefetch abort.  The pxa3xx_resume_after_mmu code requires
that the r1 register holding the address of this mapping not be
modified, however, resume_turn_on_mmu does modify it. It is mostly
correct in that r1 receives the base table address, but it may also
get other bits in 13:0.  This results in pxa3xx_resume_after_mmu
restoring the original mapping to the wrong place, corrupting memory
and leaving the temporary mapping in place.

Signed-off-by: Matt Reimer <mreimer@sdgsystems.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
13 years agoARM: it8152: add IT8152_LAST_IRQ definition to fix build error
Mike Rapoport [Wed, 29 Dec 2010 07:06:26 +0000 (09:06 +0200)]
ARM: it8152: add IT8152_LAST_IRQ definition to fix build error

The commit 6ac6b817f3f4c23c5febd960d8deb343e13af5f3 (ARM: pxa: encode
IRQ number into .nr_irqs) removed definition of ITE_LAST_IRQ which
caused the following build error:

CC      arch/arm/common/it8152.o
arch/arm/common/it8152.c: In function 'it8152_init_irq':
arch/arm/common/it8152.c:86: error: 'IT8152_LAST_IRQ' undeclared (first use in this function)
arch/arm/common/it8152.c:86: error: (Each undeclared identifier is reported only once
arch/arm/common/it8152.c:86: error: for each function it appears in.)
make[2]: *** [arch/arm/common/it8152.o] Error 1

Defining the IT8152_LAST_IRQ in the arch/arm/include/hardware/it8152.c
fixes the build.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
13 years agoARM: pxa: PXA_ESERIES depends on FB_W100.
Lennert Buytenhek [Tue, 14 Dec 2010 23:20:16 +0000 (07:20 +0800)]
ARM: pxa: PXA_ESERIES depends on FB_W100.

As arch/arm/mach-pxa/eseries.c references w100fb_gpio_{read,write}()
directly.

Signed-off-by: Lennert Buytenhek <buytenh@secretlab.ca>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
13 years agoperf: Fix callchain hit bad cast on ascii display
Frederic Weisbecker [Mon, 3 Jan 2011 15:13:11 +0000 (16:13 +0100)]
perf: Fix callchain hit bad cast on ascii display

ipchain__fprintf_graph() casts the number of hits in a branch as an
int, which means we lose its highests bits.

This results in meaningless number of callchain hits in perf.data
that have a high number of hits recorded, typically those that have
callchain branches hits appearing more than INT_MAX. This happens
easily as those are pondered by the event period.

Reported-by: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
13 years agoarch/x86/oprofile/op_model_amd.c: Perform initialisation on a single CPU
Robert Richter [Mon, 3 Jan 2011 11:15:14 +0000 (12:15 +0100)]
arch/x86/oprofile/op_model_amd.c: Perform initialisation on a single CPU

Disable preemption in init_ibs(). The function only checks the
ibs capabilities and sets up pci devices (if necessary). It runs
only on one cpu but operates with the local APIC and some MSRs,
thus it is better to disable preemption.

[    7.034377] BUG: using smp_processor_id() in preemptible [00000000] code: modprobe/483
[    7.034385] caller is setup_APIC_eilvt+0x155/0x180
[    7.034389] Pid: 483, comm: modprobe Not tainted 2.6.37-rc1-20101110+ #1
[    7.034392] Call Trace:
[    7.034400]  [<ffffffff812a2b72>] debug_smp_processor_id+0xd2/0xf0
[    7.034404]  [<ffffffff8101e985>] setup_APIC_eilvt+0x155/0x180
[ ... ]

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=22812

Reported-by: <atswartz@gmail.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list@lists.sourceforge.net <oprofile-list@lists.sourceforge.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Dan Carpenter <error27@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: <stable@kernel.org> [2.6.37.x]
LKML-Reference: <20110103111514.GM4739@erda.amd.com>
[ small cleanups ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years ago[media] em28xx: radio_fops should also use unlocked_ioctl
Hans Verkuil [Sat, 18 Dec 2010 12:59:51 +0000 (09:59 -0300)]
[media] em28xx: radio_fops should also use unlocked_ioctl

em28xx uses core assisted locking, so it shouldn't use .ioctl.
The .ioctl callback was replaced by .unlocked_ioctl for video nodes,
but not for radio nodes. This is now corrected.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] wm8775: Revert changeset fcb9757333 to avoid a regression
Mauro Carvalho Chehab [Mon, 3 Jan 2011 11:09:56 +0000 (09:09 -0200)]
[media] wm8775: Revert changeset fcb9757333 to avoid a regression

It seems that cx88 and ivtv use wm8775 on some different modes. The
patch that added support for a board with wm8775 broke ivtv boards with
this device. As we're too close to release 2.6.37, let's just revert
it.

Reported-by: Andy Walls <awalls@md.metrocast.net>
Reported-by: Eric Sharkey <eric@lisaneric.org>
Reported-by: Auric <auric@aanet.com.au>
Reported by: David Gesswein <djg@pdp8online.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years ago[media] cx25840: Prevent device probe failure due to volume control ERANGE error
Andy Walls [Sun, 5 Dec 2010 22:42:30 +0000 (19:42 -0300)]
[media] cx25840: Prevent device probe failure due to volume control ERANGE error

This patch fixes a regression that crept into 2.6.36.

The volume control scale in the cx25840 driver has an unusual mapping
from register values to v4l2 volume control values.  Enforce the mapping
limits, so that the default volume control setting does not fall out of
bounds to prevent the cx25840 module device probe from failing.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
13 years agodmaengine: provide dummy functions for DMA_ENGINE=n
Guennadi Liakhovetski [Wed, 22 Dec 2010 13:46:46 +0000 (14:46 +0100)]
dmaengine: provide dummy functions for DMA_ENGINE=n

This lets drivers, optionally using the dmaengine, build with DMA_ENGINE
unselected.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agomv_xor: fix race in tasklet function
Saeed Bishara [Tue, 21 Dec 2010 14:53:39 +0000 (16:53 +0200)]
mv_xor: fix race in tasklet function

use mv_xor_slot_cleanup() instead of __mv_xor_slot_cleanup() as the former function
aquires the spin lock that needed to protect the drivers data.

Cc: <stable@kernel.org>
Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoARM: 6605/1: Add missing include "asm/memory.h"
Axel Lin [Mon, 3 Jan 2011 01:26:53 +0000 (02:26 +0100)]
ARM: 6605/1: Add missing include "asm/memory.h"

This patch fixes below build error by adding the missing asm/memory.h,
which is needed for arch_is_coherent().

$ make pxa3xx_defconfig; make
  CC      init/do_mounts_rd.o
In file included from include/linux/list_bl.h:5,
                 from include/linux/rculist_bl.h:7,
                 from include/linux/dcache.h:7,
                 from include/linux/fs.h:381,
                 from init/do_mounts_rd.c:3:
include/linux/bit_spinlock.h: In function 'bit_spin_unlock':
include/linux/bit_spinlock.h:61: error: implicit declaration of function 'arch_is_coherent'
make[1]: *** [init/do_mounts_rd.o] Error 1
make: *** [init] Error 2

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agowatchdog: Improve initialisation error message and documentation
Ben Hutchings [Sun, 2 Jan 2011 23:02:42 +0000 (23:02 +0000)]
watchdog: Improve initialisation error message and documentation

The error message 'NMI watchdog failed to create perf event...'
does not make it clear that this is a fatal error for the
watchdog.  It also currently prints the error value as a
pointer, rather than extracting the error code with PTR_ERR().
Fix that.

Add a note to the description of the 'nowatchdog' kernel
parameter to associate it with this message.

Reported-by: Cesare Leonardi <celeonar@gmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: 599368@bugs.debian.org
Cc: 608138@bugs.debian.org
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: <stable@kernel.org> # .37.x and later
LKML-Reference: <1294009362.3167.126.camel@localhost>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agohwmon: (s3c-hwmon) Fix compilation
Maurus Cuelenaere [Sun, 2 Jan 2011 19:48:16 +0000 (14:48 -0500)]
hwmon: (s3c-hwmon) Fix compilation

The owner field was removed from struct attribute in
6fd69dc578fa0b1bbc3aad70ae3af9a137211707, so don't assign it anymore.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agoMerge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sun, 2 Jan 2011 18:44:21 +0000 (10:44 -0800)]
Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: i8259: initialize isr_ack
  KVM: MMU: Fix incorrect direct gfn for unpaged mode shadow

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sun, 2 Jan 2011 18:43:51 +0000 (10:43 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda: Use LPIB quirk for Dell Inspiron m101z/1120
  sound: Prevent buffer overflow in OSS load_mixer_volumes
  ASoC: codecs: wm8753: Fix register cache incoherency
  ASoC: codecs: wm9090: Fix register cache incoherency
  ASoC: codecs: wm8962: Fix register cache incoherency
  ASoC: codecs: wm8955: Fix register cache incoherency
  ASoC: codecs: wm8904: Fix register cache incoherency
  ASoC: codecs: wm8741: Fix register cache incoherency
  ASoC: codecs: wm8523: Fix register cache incoherency
  ASoC: codecs: max98088: Fix register cache incoherency
  ASoC: codecs: Add missing control_type initialization

13 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuil...
Linus Torvalds [Sun, 2 Jan 2011 18:37:19 +0000 (10:37 -0800)]
Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  kconfig: fix undesirable side effect of adding "visible" menu attribute

13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Sun, 2 Jan 2011 10:01:55 +0000 (11:01 +0100)]
Merge branch 'fix/asoc' into for-linus

13 years agoKVM: i8259: initialize isr_ack
Avi Kivity [Fri, 31 Dec 2010 08:52:15 +0000 (10:52 +0200)]
KVM: i8259: initialize isr_ack

isr_ack is never initialized.  So, until the first PIC reset, interrupts
may fail to be injected.  This can cause Windows XP to fail to boot, as
reported in the fallout from the fix to
https://bugzilla.kernel.org/show_bug.cgi?id=21962.

Reported-and-tested-by: Nicolas Prochazka <prochazka.nicolas@gmail.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
13 years agodrivers/atm/atmtcp.c: add missing atm_dev_put
Julia Lawall [Wed, 29 Dec 2010 04:01:03 +0000 (04:01 +0000)]
drivers/atm/atmtcp.c: add missing atm_dev_put

The earlier call to atm_dev_lookup increases the reference count of dev,
so decrease it on the way out.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x, E;
constant C;
@@

x = atm_dev_lookup(...);
... when != false x != NULL
    when != true x == NULL
    when != \(E = x\|x = E\)
    when != atm_dev_put(dev);
*return -C;
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agostarfire: Fix dma_addr_t size test for MIPS
Ben Hutchings [Wed, 29 Dec 2010 04:26:17 +0000 (04:26 +0000)]
starfire: Fix dma_addr_t size test for MIPS

Commit 56543af "starfire: use BUILD_BUG_ON for netdrv_addr_t" revealed
that the preprocessor condition used to find the size of dma_addr_t
yielded the wrong result for some architectures and configurations.
This was kluged for 64-bit PowerPC in commit 3e502e6 by adding yet
another case to the condition.  However, 64-bit MIPS configurations
are not detected reliably either.

This should be fixed by using CONFIG_ARCH_DMA_ADDR_T_64BIT, but that
isn't yet defined everywhere it should be.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agotg3: fix return value check in tg3_read_vpd()
David Sterba [Wed, 29 Dec 2010 03:40:31 +0000 (03:40 +0000)]
tg3: fix return value check in tg3_read_vpd()

Besides -ETIMEDOUT and -EINTR, pci_read_vpd may return other error
values like -ENODEV or -EINVAL which are ignored due to the buggy
check, but the data are not read from VPD anyway and this is checked
subsequently with at most 3 needless loop iterations. This does not
show up as a runtime bug.

CC: Matt Carlson <mcarlson@broadcom.com>
CC: Michael Chan <mchan@broadcom.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoBroadcom CNIC core network driver: fix mem leak on allocation failures in cnic_alloc_...
Jesper Juhl [Fri, 31 Dec 2010 19:18:48 +0000 (11:18 -0800)]
Broadcom CNIC core network driver: fix mem leak on allocation failures in cnic_alloc_uio_rings()

We are leaking memory in drivers/net/cnic.c::cnic_alloc_uio_rings() if
either of the calls to dma_alloc_coherent() fail. This patch fixes it by
freeing both the memory allocated with kzalloc() and memory allocated with
previous calls to dma_alloc_coherent() when there's a failure.

Thanks to  Joe Perches <joe@perches.com>  for suggesting a better
implementation than my initial version.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoISDN, Gigaset: Fix memory leak in do_disconnect_req()
Jesper Juhl [Sun, 26 Dec 2010 09:59:58 +0000 (09:59 +0000)]
ISDN, Gigaset: Fix memory leak in do_disconnect_req()

Hi,

In drivers/isdn/gigaset/capi.c::do_disconnect_req() we will leak the
memory allocated (with kmalloc) to 'b3cmsg' if the call to alloc_skb()
fails.

...
b3cmsg = kmalloc(sizeof(*b3cmsg), GFP_KERNEL);
allocation here ------^
if (!b3cmsg) {
dev_err(cs->dev, "%s: out of memory\n", __func__);
send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
return;
}
capi_cmsg_header(b3cmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
 ap->nextMessageNumber++,
 cmsg->adr.adrPLCI | (1 << 16));
b3cmsg->Reason_B3 = CapiProtocolErrorLayer1;
b3skb = alloc_skb(CAPI_DISCONNECT_B3_IND_BASELEN, GFP_KERNEL);
if (b3skb == NULL) {
dev_err(cs->dev, "%s: out of memory\n", __func__);
send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
return;
leak here ------^
...

This leak is easily fixed by just kfree()'ing the memory allocated to
'b3cmsg' right before we return. The following patch does that.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoCAN: Use inode instead of kernel address for /proc file
Dan Rosenberg [Sun, 26 Dec 2010 06:54:53 +0000 (06:54 +0000)]
CAN: Use inode instead of kernel address for /proc file

Since the socket address is just being used as a unique identifier, its
inode number is an alternative that does not leak potentially sensitive
information.

CC-ing stable because MITRE has assigned CVE-2010-4565 to the issue.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoMerge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle...
Linus Torvalds [Thu, 30 Dec 2010 20:09:26 +0000 (12:09 -0800)]
Merge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel

* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ickle/drm-intel:
  drm/i915/dvo: Report LVDS attached to ch701x as connected
  Revert "drm/i915/bios: Reverse order of 100/120 Mhz SSC clocks"
  drm/i915: Verify Ironlake eDP presence on DP_A using the capability fuse
  drm/i915, intel_ips: When i915 loads after IPS, make IPS relink to i915.
  drm/i915/sdvo: Add hdmi connector properties after initing the connector
  drm/i915: Set the required VFMUNIT clock gating disable on Ironlake.

13 years agoRevert "Staging: zram: work around oops due to startup ordering snafu"
Nitin Gupta [Thu, 30 Dec 2010 09:07:58 +0000 (04:07 -0500)]
Revert "Staging: zram: work around oops due to startup ordering snafu"

This reverts commit 7e24cce38a99f373450db67bf576fe73e8168d66 because it
was never appropriate for mainline.

Do not check for init flag before starting I/O - zram module is unusable
without this fix.

The oops mentioned in the reverted commit message was actually a problem
only with the zram version as present in project's own repository where
we allocate struct zram_stats_cpu upon device initialization.  OTOH, In
mainline/staging version of zram, we allocate struct stats upfront, so
this oops cannot happen in mainline version.

Checking for init_done flag in zram_make_request() results in a *no-op*
for any I/O operation since we simply always return success.  This flag
is actually set when the first write occurs on a zram disk which
triggers its initialization.

Bug report: https://bugzilla.kernel.org/show_bug.cgi?id=25722

Reported-by: Dennis Jansen <dennis.jansen@web.de>
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Cc: Anton Blanchard <anton@samba.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'merge-spi' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Thu, 30 Dec 2010 18:07:44 +0000 (10:07 -0800)]
Merge branch 'merge-spi' of git://git.secretlab.ca/git/linux-2.6

* 'merge-spi' of git://git.secretlab.ca/git/linux-2.6:
  spi/m68knommu: Coldfire QSPI platform support
  spi/omap2_mcspi.c: Force CS to be in inactive state after off-mode transition

13 years agomemcg: fix wrong VM_BUG_ON() in try_charge()'s mm->owner check
KAMEZAWA Hiroyuki [Wed, 29 Dec 2010 22:07:11 +0000 (14:07 -0800)]
memcg: fix wrong VM_BUG_ON() in try_charge()'s mm->owner check

At __mem_cgroup_try_charge(), VM_BUG_ON(!mm->owner) is checked.
But as commented in mem_cgroup_from_task(), mm->owner can be NULL
in some racy case. This check of VM_BUG_ON() is bad.

A possible story to hit this is at swapoff()->try_to_unuse(). It passes
mm_struct to mem_cgroup_try_charge_swapin() while mm->owner is NULL. If we
can't get proper mem_cgroup from swap_cgroup information, mm->owner is used
as charge target and we see NULL.

Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reported-by: Hugh Dickins <hughd@google.com>
Reported-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Reviewed-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoupdate Documentation/filesystems/Locking
Christoph Hellwig [Thu, 16 Dec 2010 11:04:54 +0000 (12:04 +0100)]
update Documentation/filesystems/Locking

Mostly inspired by all the recent BKL removal changes, but a lot of older
updates also weren't properly recorded.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agodrm/i915/dvo: Report LVDS attached to ch701x as connected
Chris Wilson [Thu, 30 Dec 2010 12:54:00 +0000 (12:54 +0000)]
drm/i915/dvo: Report LVDS attached to ch701x as connected

As we have already detected something attached to the chip during
initialisation, always report the LVDS connector status as connected
during probing.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
13 years agoRevert "drm/i915/bios: Reverse order of 100/120 Mhz SSC clocks"
Chris Wilson [Thu, 30 Dec 2010 09:07:15 +0000 (09:07 +0000)]
Revert "drm/i915/bios: Reverse order of 100/120 Mhz SSC clocks"

As I feared, whilst this fixed the clocks for the Lenovo U160, it broke
many other machines. So lets reverts commit 448f53a1ede54eb854d036abf
and search for the real bug.

Reported-and-tested-by: Travis Hume <travis@computoring.org> [et al]
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=25842
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32698
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
13 years agoALSA: hda: Use LPIB quirk for Dell Inspiron m101z/1120
Daniel T Chen [Tue, 28 Dec 2010 22:20:02 +0000 (17:20 -0500)]
ALSA: hda: Use LPIB quirk for Dell Inspiron m101z/1120

Sjoerd Simons reports that, without using position_fix=1, recording
experiences overruns. Work around that by applying the LPIB quirk
for his hardware.

Reported-and-tested-by: Sjoerd Simons <sjoerd@debian.org>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agosound: Prevent buffer overflow in OSS load_mixer_volumes
Dan Rosenberg [Sat, 25 Dec 2010 21:23:40 +0000 (16:23 -0500)]
sound: Prevent buffer overflow in OSS load_mixer_volumes

The load_mixer_volumes() function, which can be triggered by
unprivileged users via the SOUND_MIXER_SETLEVELS ioctl, is vulnerable to
a buffer overflow.  Because the provided "name" argument isn't
guaranteed to be NULL terminated at the expected 32 bytes, it's possible
to overflow past the end of the last element in the mixer_vols array.
Further exploitation can result in an arbitrary kernel write (via
subsequent calls to load_mixer_volumes()) leading to privilege
escalation, or arbitrary kernel reads via get_mixer_levels().  In
addition, the strcmp() may leak bytes beyond the mixer_vols array.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agospi/m68knommu: Coldfire QSPI platform support
Jate Sujjavanich [Wed, 29 Sep 2010 13:44:32 +0000 (09:44 -0400)]
spi/m68knommu: Coldfire QSPI platform support

After grabbing a msg from the msgq, the mcfqspi_work function calls
list_del_init on the mcfqspi->msgq which unintentionally deletes the rest
of the list before it can be processed. If qspi call was made using
spi_sync, this can result in a process hang.

Signed-off-by: Jate Sujjavanich <jsujjavanich@syntech-fuelmaster.com>
Acked-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agokconfig: fix undesirable side effect of adding "visible" menu attribute
Jan Beulich [Thu, 9 Dec 2010 08:11:38 +0000 (08:11 +0000)]
kconfig: fix undesirable side effect of adding "visible" menu attribute

This lead to non-selected, non-user-selectable options to be written
out to .config. This is not only pointless, but also preventing the
user to be prompted should any of those options eventually become
visible (e.g. by de-selecting the *_AUTO options the "visible"
attribute was added for.

Furthermore it is quite logical for the "visible" attribute of a menu
to control the visibility of all contained prompts, which is what the
patch does.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
13 years agospi/omap2_mcspi.c: Force CS to be in inactive state after off-mode transition
Gregory CLEMENT [Wed, 29 Dec 2010 10:52:53 +0000 (11:52 +0100)]
spi/omap2_mcspi.c: Force CS to be in inactive state after off-mode transition

When SPI wake up from OFF mode, CS is in the wrong state: force it to the
inactive state.

During the system life, I monitored the CS behavior using a oscilloscope.
I also activated debug in omap2_mcspi, so I saw when driver disable the clocks
and restore context when device is not used.Each time the CS was in the correct
state.  It was only when system was put suspend to ram with off-mode activated
that on resume the CS was in wrong state( ie activated).

Changelog:
* Change from v1 to v2:
  - Rebase on linus/master (after 2.6.37-rc1)
  - Do some clean-up and fix indentation on both patches
  - Add more explanations for patch 2

* Change from v2 to v3:
  - Use directly resume function of spi_master instead of using function
  - from spi_device as Grant Likely pointed it out.
  - Force this transition explicitly for each CS used by a device.

* Change from v3 to v4:
  - Patch clean-up according to Kevin Hilman and checkpatch.
  - Now force CS to be in inactive state only if it was inactive when it was
    suspended.

* Change from v4 to v5:
  - Rebase on linus/master (after 2.6.37-rc3)
  - Collapse some lines as pointed by Grant Likely
  - Fix a spelling

* Change from v5 to v6:
  - Rebase on linus/master (after 2.6.37-rc7)
  - Use CONFIG_SUSPEND instead of CONFIG_PM
  - Didn't use legacy PM methods anymore. Instead, add a struct dev_pm_ops and
    add the resume method there.
  - Fix multi-line comment style

* Change from v6 to v7:
  - Rebase on linus/master (after 2.6.37-rc8)
  - Drop an extra line

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Reviewed-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
13 years agofix freeing user_struct in user cache
Hillf Danton [Wed, 29 Dec 2010 13:55:28 +0000 (21:55 +0800)]
fix freeing user_struct in user cache

When racing on adding into user cache, the new allocated from mm slab
is freed without putting user namespace.

Since the user namespace is already operated by getting, putting has
to be issued.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Acked-by: Serge Hallyn <serge@hallyn.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agonfsd4: fix oops on secinfo_no_name result encoding
Mi Jinlong [Mon, 27 Dec 2010 06:29:57 +0000 (14:29 +0800)]
nfsd4: fix oops on secinfo_no_name result encoding

The secinfo_no_name code oopses on encoding with

BUG: unable to handle kernel NULL pointer dereference at 00000044
IP: [<e2bd239a>] nfsd4_encode_secinfo+0x1c/0x1c1 [nfsd]

We should implement a nfsd4_encode_secinfo_no_name() instead using
nfsd4_encode_secinfo().

Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
13 years agoKVM: MMU: Fix incorrect direct gfn for unpaged mode shadow
Avi Kivity [Tue, 28 Dec 2010 10:09:07 +0000 (12:09 +0200)]
KVM: MMU: Fix incorrect direct gfn for unpaged mode shadow

We use the physical address instead of the base gfn for the four
PAE page directories we use in unpaged mode.  When the guest accesses
an address above 1GB that is backed by a large host page, a BUG_ON()
in kvm_mmu_set_gfn() triggers.

Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=21962
Reported-and-tested-by: Nicolas Prochazka <prochazka.nicolas@gmail.com>
KVM-Stable-Tag.
Signed-off-by: Avi Kivity <avi@redhat.com>
13 years agoLinux 2.6.37-rc8 v2.6.37-rc8
Linus Torvalds [Wed, 29 Dec 2010 01:05:48 +0000 (17:05 -0800)]
Linux 2.6.37-rc8

13 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 28 Dec 2010 23:54:24 +0000 (15:54 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  ring_buffer: Off-by-one and duplicate events in ring_buffer_read_page

13 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 28 Dec 2010 23:53:54 +0000 (15:53 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86/microcode: Fix double vfree() and remove redundant pointer checks before vfree()

13 years agoASoC: codecs: wm8753: Fix register cache incoherency
Lars-Peter Clausen [Tue, 28 Dec 2010 20:38:03 +0000 (21:38 +0100)]
ASoC: codecs: wm8753: Fix register cache incoherency

The multi-component patch(commit f0fba2ad1) moved the allocation of the
register cache from the driver to the ASoC core. Most drivers where adjusted to
this, but the wm8753 driver still uses its own register cache for its
private functions, while functions from the ASoC core use the generic cache.
Furthermore the generic cache uses zero-based numbering while the wm8753 cache
uses one-based numbering.
Thus we end up with two from each other incoherent caches, which leads to undefined
behaviour and crashes.
This patch fixes the issue by changing the wm8753 driver to use the generic
register cache in its private functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
13 years agoASoC: codecs: wm9090: Fix register cache incoherency
Lars-Peter Clausen [Tue, 28 Dec 2010 20:38:02 +0000 (21:38 +0100)]
ASoC: codecs: wm9090: Fix register cache incoherency

The multi-component patch(commit f0fba2ad1) moved the allocation of the
register cache from the driver to the ASoC core. Most drivers where adjusted to
this, but the wm9090 driver still uses its own register cache for its
private functions, while functions from the ASoC core use the generic cache.
Thus we end up with two from each other incoherent caches, which can lead to
undefined behaviour.
This patch fixes the issue by changing the wm9090 driver to use the
generic register cache in its private functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org (for 2.6.37 only)