10 years agonfsd4: fix file open accounting for RDWR opens
J. Bruce Fields [Sat, 7 Aug 2010 13:21:41 +0000]
nfsd4: fix file open accounting for RDWR opens

Commit f9d7562fdb9dc0ada3a7aba5dbbe9d965e2a105d "nfsd4: share file
descriptors between stateid's" didn't correctly account for O_RDWR opens.
Symptoms include leaked files, resulting in failures to unmount and/or
warnings about orphaned inodes on reboot.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: don't allow setting maxblksize after svc created
J. Bruce Fields [Fri, 6 Aug 2010 22:00:33 +0000]
nfsd: don't allow setting maxblksize after svc created

It's harmless to set this after the server is created, but also
ineffective, since the value is only used at the time of
svc_create_pooled().  So fail the attempt, in keeping with the pattern
set by write_versions, write_{lease,grace}time and write_recoverydir.

(This could break userspace that tried to write to nfsd/max_block_size
between setting up sockets and starting the server.  However, such code
wouldn't have worked anyway, and I don't know of any examples--rpc.nfsd
in nfs-utils, probably the only user of the interface, doesn't do that.)

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: initialize nfsd versions before creating svc
J. Bruce Fields [Fri, 6 Aug 2010 19:48:03 +0000]
nfsd: initialize nfsd versions before creating svc

Commit 59db4a0c102e0de226a3395dbf25ea51bf845937 "nfsd: move more into
nfsd_startup()" inadvertently moved nfsd_versions after
nfsd_create_svc().  On older distributions using an rpc.nfsd that does
not explicitly set the list of nfsd versions, this results in
svc-create_pooled() being called with an empty versions array.  The
resulting incomplete initialization leads to a NULL dereference in
svc_process_common() the first time a client accesses the server.

Move nfsd_reset_versions() back before the svc_create_pooled(); this
time, put it closer to the svc_create_pooled() call, to make this
mistake more difficult in the future.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonet: sunrpc: removed duplicated #include
Andrea Gelmini [Thu, 5 Aug 2010 13:51:36 +0000]
net: sunrpc: removed duplicated #include

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd41: Fix a crash when a callback is retried
Boaz Harrosh [Tue, 29 Jun 2010 11:33:55 +0000]
nfsd41: Fix a crash when a callback is retried

If a callback is retried at nfsd4_cb_recall_done() due to
some error, the returned rpc reply crashes here:

@@ -514,6 +514,7 @@ decode_cb_sequence(struct xdr_stream *xdr, struct nfsd4_cb_sequence *res,
  u32 dummy;
  __be32 *p;

 + BUG_ON(!res);
  if (res->cbs_minorversion == 0)
  return 0;

[BUG_ON added for demonstration]

This is because the nfsd4_cb_done_sequence() has NULLed out
the task->tk_msg.rpc_resp pointer.

Also eventually the rpc would use the new slot without making
sure it is free by calling nfsd41_cb_setup_sequence().

This problem was introduced by a 4.1 protocol addition patch:
[0421b5c5] nfsd41: Backchannel: Implement cb_recall over NFSv4.1

Which was overlooking the possibility of an RPC callback retries.
For not-4.1 case redoing the _prepare is harmless.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: fix startup/shutdown order bug
J. Bruce Fields [Mon, 2 Aug 2010 18:12:44 +0000]
nfsd: fix startup/shutdown order bug

We must create the server before we can call init_socks or check the
number of threads.

Symptoms were a NULL pointer dereference in nfsd_svc().  Problem
identified by Jeff Layton.

Also fix a minor cleanup-on-error case in nfsd_startup().

Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: minor nfsd read api cleanup
J. Bruce Fields [Fri, 30 Jul 2010 15:33:32 +0000]
nfsd: minor nfsd read api cleanup

Christoph points that the NFSv2/v3 callers know which case they want
here, so we may as well just call the file=NULL case directly instead of
making this conditional.

Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agogcc-4.6: nfsd: fix initialized but not read warnings
Andi Kleen [Tue, 20 Jul 2010 22:24:27 +0000]
gcc-4.6: nfsd: fix initialized but not read warnings

Fixes at least one real minor bug: the nfs4 recovery dir sysctl
would not return its status properly.

Also I finished Al's 1e41568d7378d ("Take ima_path_check() in nfsd
past dentry_open() in nfsd_open()") commit, it moved the IMA
code, but left the old path initializer in there.

The rest is just dead code removed I think, although I was not
fully sure about the "is_borc" stuff. Some more review
would be still good.

Found by gcc 4.6's new warnings.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd4: share file descriptors between stateid's
J. Bruce Fields [Thu, 8 Jul 2010 15:02:09 +0000]
nfsd4: share file descriptors between stateid's

The vfs doesn't really allow us to "upgrade" a file descriptor from
read-only to read-write, and our attempt to do so in nfs4_upgrade_open
is ugly and incomplete.

Move to a different scheme where we keep multiple opens, shared between
open stateid's, in the nfs4_file struct.  Each file will be opened at
most 3 times (for read, write, and read-write), and those opens will be
shared between all clients and openers.  On upgrade we will do another
open if necessary instead of attempting to upgrade an existing open.
We keep count of the number of readers and writers so we know when to
close the shared files.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: fix openmode checking on IO using lock stateid
J. Bruce Fields [Thu, 29 Jul 2010 19:16:59 +0000]
nfsd4: fix openmode checking on IO using lock stateid

It is legal to perform a write using the lock stateid that was
originally associated with a read lock, or with a file that was
originally opened for read, but has since been upgraded.

So, when checking the openmode, check the mode associated with the
open stateid from which the lock was derived.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd4: miscellaneous process_open2 cleanup
J. Bruce Fields [Wed, 28 Jul 2010 16:21:23 +0000]
nfsd4: miscellaneous process_open2 cleanup

Move more work into helper functions.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd4: don't pretend to support write delegations
J. Bruce Fields [Wed, 28 Jul 2010 14:08:57 +0000]
nfsd4: don't pretend to support write delegations

The delegation code mostly pretends to support either read or write
delegations.  However, correct support for write delegations would
require, for example, breaking of delegations (and/or implementation of
cb_getattr) on stat.  Currently all that stops us from handing out
delegations is a subtle reference-counting issue.

Avoid confusion by adding an earlier check that explicitly refuses write

For now, though, I'm not going so far as to rip out existing
half-support for write delegations, in case we get around to using that

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: bypass readahead cache when have struct file
J. Bruce Fields [Tue, 27 Jul 2010 20:48:54 +0000]
nfsd: bypass readahead cache when have struct file

The readahead cache compensates for the fact that the NFS server
currently does an open and close on every IO operation in the NFSv2 and
NFSv3 case.

In the NFSv4 case we have long-lived struct files associated with client
opens, so there's no need for this.  In fact, concurrent IO's using
trying to modify the same file->f_ra may cause problems.

So, don't bother with the readahead cache in that case.

Note eventually we'll likely do this in the v2/v3 case as well by
keeping a cache of struct files instead of struct file_ra_state's.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: minor nfsd_svc() cleanup
J. Bruce Fields [Wed, 21 Jul 2010 22:31:42 +0000]
nfsd: minor nfsd_svc() cleanup

More idiomatic to put the error case in the if clause.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: move more into nfsd_startup()
J. Bruce Fields [Wed, 21 Jul 2010 22:29:25 +0000]
nfsd: move more into nfsd_startup()

This is just cleanup--it's harmless to call nfsd_rachache_init,
nfsd_init_socks, and nfsd_reset_versions more than once.  But there's no
point to it.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: just keep single lockd reference for nfsd
Jeff Layton [Tue, 20 Jul 2010 18:10:22 +0000]
nfsd: just keep single lockd reference for nfsd

Right now, nfsd keeps a lockd reference for each socket that it has
open. This is unnecessary and complicates the error handling on
startup and shutdown. Change it to just do a lockd_up when starting
the first nfsd thread just do a single lockd_down when taking down the
last nfsd thread. Because of the strange way the sv_count is handled
this requires an extra flag to tell whether the nfsd_serv holds a
reference for lockd or not.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: clean up nfsd_create_serv error handling
Jeff Layton [Wed, 21 Jul 2010 20:40:08 +0000]
nfsd: clean up nfsd_create_serv error handling

There doesn't seem to be any need to reset the nfssvc_boot time if the
nfsd startup failed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: fix error handling in __write_ports_addxprt
Jeff Layton [Mon, 19 Jul 2010 20:50:06 +0000]
nfsd: fix error handling in __write_ports_addxprt

__write_ports_addxprt calls nfsd_create_serv. That increases the
refcount of nfsd_serv (which is tracked in sv_nrthreads). The service
only decrements the thread count on error, not on success like
__write_ports_addfd does, so using this interface leaves the nfsd
thread count high.

Fix this by having this function call svc_destroy() on error to release
the reference (and possibly to tear down the service) and simply
decrement the refcount without tearing down the service on success.

This makes the sv_threads handling work basically the same in both
__write_ports_addxprt and __write_ports_addfd.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: fix error handling when starting nfsd with rpcbind down
Jeff Layton [Mon, 19 Jul 2010 20:50:05 +0000]
nfsd: fix error handling when starting nfsd with rpcbind down

The refcounting for nfsd is a little goofy. What happens is that we
create the nfsd RPC service, attach sockets to it but don't actually
start the threads until someone writes to the "threads" procfile. To do
this, __write_ports_addfd will create the nfsd service and then will
decrement the refcount when exiting but won't actually destroy the

This is fine when there aren't errors, but when there are this can
cause later attempts to start nfsd to fail. nfsd_serv will be set,
and that causes __write_versions to return EBUSY.

Fix this by calling svc_destroy on nfsd_serv when this function is
going to return error.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd4: fix v4 state shutdown error paths
Jeff Layton [Mon, 19 Jul 2010 20:50:04 +0000]
nfsd4: fix v4 state shutdown error paths

If someone tries to shut down the laundry_wq while it isn't up it'll
cause an oops.

This can happen because write_ports can create a nfsd_svc before we
really start the nfs server, and we may fail before the server is ever

Also make sure state is shutdown on error paths in nfsd_svc().

Use a common global nfsd_up flag instead of nfs4_init, and create common
helper functions for nfsd start/shutdown, as there will be other work
that we want done only when we the number of nfsd threads transitions
between zero and nonzero.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agonfsd: remove unused assignment from nfsd_link
J. Bruce Fields [Mon, 19 Jul 2010 20:38:24 +0000]
nfsd: remove unused assignment from nfsd_link

Trivial cleanup, since "dest" is never used.

Reported-by: Anshul Madan <Anshul.Madan@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

10 years agoNFSD: Fill in WCC data for REMOVE, RMDIR, MKNOD, and MKDIR
Chuck Lever [Tue, 6 Jul 2010 20:53:34 +0000]
NFSD: Fill in WCC data for REMOVE, RMDIR, MKNOD, and MKDIR

Some well-known NFSv3 clients drop their directory entry caches when
they receive replies with no WCC data.  Without this data, they
employ extra READ, LOOKUP, and GETATTR requests to ensure their
directory entry caches are up to date, causing performance to suffer

In order to return WCC data, our server has to have both the pre-op
and the post-op attribute data on hand when a reply is XDR encoded.
The pre-op data is filled in when the incoming fh is locked, and the
post-op data is filled in when the fh is unlocked.

Unfortunately, for REMOVE, RMDIR, MKNOD, and MKDIR, the directory fh
is not unlocked until well after the reply has been XDR encoded.  This
means that encode_wcc_data() does not have wcc_data for the parent
directory, so none is returned to the client after these operations

By unlocking the parent directory fh immediately after the internal
operations for each NFS procedure is complete, the post-op data is
filled in before XDR encoding starts, so it can be returned to the
client properly.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: comment nitpick
J. Bruce Fields [Tue, 6 Jul 2010 16:39:12 +0000]
nfsd4: comment nitpick

Reported-by: "Madan, Anshul" <Anshul.Madan@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agosunrpc: make the cache cleaner workqueue deferrable
Artem Bityutskiy [Thu, 1 Jul 2010 15:05:56 +0000]
sunrpc: make the cache cleaner workqueue deferrable

This patch makes the cache_cleaner workqueue deferrable, to prevent
unnecessary system wake-ups, which is very important for embedded
battery-powered devices.

do_cache_clean() is called every 30 seconds at the moment, and often
makes the system wake up from its power-save sleep state. With this
change, when the workqueue uses a deferrable timer, the
do_cache_clean() invocation will be delayed and combined with the
closest "real" wake-up. This improves the power consumption situation.

Note, I tried to create a DECLARE_DELAYED_WORK_DEFERRABLE() helper
macro, similar to DECLARE_DELAYED_WORK(), but failed because of the
way the timer wheel core stores the deferrable flag (it is the
LSBit in the time->base pointer). My attempt to define a static
variable with this bit set ended up with the "initializer element is
not constant" error.

Thus, I have to use run-time initialization, so I created a new
cache_initialize() function which is called once when sunrpc is
being initialized.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: fix delegation recall race use-after-free
J. Bruce Fields [Tue, 1 Jun 2010 15:21:40 +0000]
nfsd4: fix delegation recall race use-after-free

When the rarely-used callback-connection-changing setclientid occurs
simultaneously with a delegation recall, we rerun the recall by
requeueing it on a workqueue.  But we also need to take a reference on
the delegation in that case, since the delegation held by the rpc itself
will be released by the rpc_release callback.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: fix deleg leak on callback error
J. Bruce Fields [Mon, 31 May 2010 23:06:39 +0000]
nfsd4: fix deleg leak on callback error

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: remove some debugging code
J. Bruce Fields [Wed, 16 Jun 2010 17:03:04 +0000]
nfsd4: remove some debugging code

This is overkill.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd: nfs4callback encode_stateid helper function
Benny Halevy [Tue, 25 May 2010 06:50:23 +0000]
nfsd: nfs4callback encode_stateid helper function

To be used also for the pnfs cb_layoutrecall callback

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfsd4: fix cb_recall encoding]
    "nfsd: nfs4callback encode_stateid helper function" forgot to reserve
    more space after return from the new helper.
Reported-by: Michael Groshans <groshans@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: translate memory errors to delay, not serverfault
J. Bruce Fields [Tue, 22 Jun 2010 20:17:12 +0000]
nfsd4: translate memory errors to delay, not serverfault

If the server is out of memory is better for clients to back off and
retry than to just error out.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4; fix session reference count leak
J. Bruce Fields [Tue, 22 Jun 2010 18:10:14 +0000]
nfsd4; fix session reference count leak

Note the session has to be put() here regardless of what happens to the

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: don't bother storing callback reply tag
J. Bruce Fields [Thu, 27 May 2010 13:30:39 +0000]
nfsd4: don't bother storing callback reply tag

We don't use this, and probably never will.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: fix use of op_share_access
J. Bruce Fields [Wed, 19 May 2010 00:01:35 +0000]
nfsd4: fix use of op_share_access

NFSv4.1 adds additional flags to the share_access argument of the open
call.  These flags need to be masked out in some of the existing code,
but current code does that inconsistently.

Tested-by: Michael Groshans <groshans@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: treat more recall errors as failures
J. Bruce Fields [Sun, 30 May 2010 15:53:12 +0000]
nfsd4: treat more recall errors as failures

If a recall fails for some unexpected reason, instead of ignoring it and
treating it like a success, it's safer to treat it as a failure,
preventing further delgation grants and returning CB_PATH_DOWN.

Also put put switches in a (two me) more logical order, with normal case

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agonfsd4: remove extra put() on callback errors
J. Bruce Fields [Tue, 25 May 2010 15:57:56 +0000]
nfsd4: remove extra put() on callback errors

Since rpc_call_async() guarantees that the release method will be called
even on failure, this put is wrong.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

10 years agoLinux 2.6.35-rc1
Linus Torvalds [Sun, 30 May 2010 20:21:02 +0000]
Linux 2.6.35-rc1

.. and thus endeth the merge window.

10 years agoMerge branch 'slub/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Sun, 30 May 2010 19:46:17 +0000]
Merge branch 'slub/urgent' of git://git./linux/kernel/git/penberg/slab-2.6

* 'slub/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  SLUB: Allow full duplication of kmalloc array for 390
  slub: move kmem_cache_node into it's own cacheline

10 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 30 May 2010 19:35:15 +0000]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mutex: Fix optimistic spinning vs. BKL

10 years agoMerge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 30 May 2010 19:35:01 +0000]
Merge branch 'perf-fixes-for-linus' of git://git./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 tui: Fix last use_browser problem related to .perfconfig
  perf symbols: Add the build id cache to the vmlinux path
  perf tui: Reset use_browser if stdout is not a tty
  ring-buffer: Move zeroing out excess in page to ring buffer code
  ring-buffer: Reset "real_end" when page is filled

10 years agoia64: revert __node_random addition
Linus Torvalds [Sun, 30 May 2010 17:08:03 +0000]
ia64: revert __node_random addition

This partially reverts commit 4ec37de89d8c758ee8115e0e64b3f994910789ee
("[IA64] Fix build breakage"), since the commit that made it necessary
got reverted earlier (see commit 35926ff5fba8, 'Revert "cpusets:
randomize node rotor used in cpuset_mem_spread_node()"')

Even if we ever re-introduce this, there is no reason to make
__node_random be some architecture-specific function.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Sun, 30 May 2010 16:16:14 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/mszeredi/fuse

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  mm: export generic_pipe_buf_*() to modules
  fuse: support splice() reading from fuse device
  fuse: allow splice to move pages
  mm: export remove_from_page_cache() to modules
  mm: export lru_cache_add_*() to modules
  fuse: support splice() writing to fuse device
  fuse: get page reference for readpages
  fuse: use get_user_pages_fast()
  fuse: remove unneeded variable

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Sun, 30 May 2010 16:13:43 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/rostedt/linux-2.6-kconfig

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
  kconfig: Hide error output in find command in streamline_config.pl
  kconfig: Fix typo in comment in streamline_config.pl
  kconfig: Make a variable local in streamline_config.pl

10 years agoMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Linus Torvalds [Sun, 30 May 2010 16:13:08 +0000]
Merge branch 'for-next' of git://git./linux/kernel/git/sameo/mfd-2.6

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (47 commits)
  mfd: Rename twl5031 sih modules
  mfd: Storage class for timberdale should be before const qualifier
  mfd: Remove unneeded and dangerous clearing of clientdata
  mfd: New AB8500 driver
  gpio: Fix inverted rdc321x gpio data out registers
  mfd: Change rdc321x resources flags to IORESOURCE_IO
  mfd: Move pcf50633 irq related functions to its own file.
  mfd: Use threaded irq for pcf50633
  mfd: pcf50633-adc: Fix potential race in pcf50633_adc_sync_read
  mfd: Fix pcf50633 bitfield logic in interrupt handler
  gpio: rdc321x needs to select MFD_CORE
  mfd: Use menuconfig for quicker config editing
  ARM: AB3550 board configuration and irq for U300
  mfd: AB3550 core driver
  mfd: AB3100 register access change to abx500 API
  mfd: Renamed ab3100.h to abx500.h
  gpio: Add TC35892 GPIO driver
  mfd: Add Toshiba's TC35892 MFD core
  mfd: Delay to mask tsc irq in max8925
  mfd: Remove incorrect wm8350 kfree

10 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Sun, 30 May 2010 16:12:43 +0000]
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: DMA40 U8500 platform configuration
  DMA: PL330: Add dma api driver

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Sun, 30 May 2010 16:12:16 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/qib: Remove DCA support until feature is finished
  IB/qib: Use a single txselect module parameter for serdes tuning
  IB/qib: Don't rely on (undefined) order of function parameter evaluation
  IB/ucm: Use memdup_user()
  IB/qib: Fix undefined symbol error when CONFIG_PCI_MSI=n

10 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Sun, 30 May 2010 16:11:11 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Convert quota statistics to generic percpu_counter
  ext3 uses rb_node = NULL; to zero rb_root.
  quota: Fixup dquot_transfer
  reiserfs: Fix resuming of quotas on remount read-write
  pohmelfs: Remove dead quota code
  ufs: Remove dead quota code
  udf: Remove dead quota code
  quota: rename default quotactl methods to dquot_
  quota: explicitly set ->dq_op and ->s_qcop
  quota: drop remount argument to ->quota_on and ->quota_off
  quota: move unmount handling into the filesystem
  quota: kill the vfs_dq_off and vfs_dq_quota_on_remount wrappers
  quota: move remount handling into the filesystem
  ocfs2: Fix use after free on remount read-only

Fix up conflicts in fs/ext4/super.c and fs/ufs/file.c

10 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 30 May 2010 16:06:13 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./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, cpufeature: Unbreak compile with gcc 3.x
  x86, pat: Fix memory leak in free_memtype
  x86, k8: Fix section mismatch for powernowk8_exit()
  lib/atomic64_test: fix missing include of linux/kernel.h
  x86: remove last traces of quicklist usage
  x86, setup: Phoenix BIOS fixup is needed on Dell Inspiron Mini 1012
  x86: "nosmp" command line option should force the system into UP mode
  arch/x86/pci: use kasprintf
  x86, apic: ack all pending irqs when crashed/on kexec

10 years agoCPU: Avoid using unititialized error variable in disable_nonboot_cpus()
Rafael J. Wysocki [Thu, 27 May 2010 20:16:22 +0000]
CPU: Avoid using unititialized error variable in disable_nonboot_cpus()

If there's only one CPU online when disable_nonboot_cpus() is called,
the error variable will not be initialized and that may lead to
erroneous behavior.  Fix this issue by initializing error in
disable_nonboot_cpus() as appropriate.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agorapidio: fix new kernel-doc warnings
Randy Dunlap [Fri, 28 May 2010 22:08:08 +0000]
rapidio: fix new kernel-doc warnings

Fix a bunch of new rapidio kernel-doc warnings:

Warning(include/linux/rio.h:123): No description found for parameter 'comp_tag'
Warning(include/linux/rio.h:123): No description found for parameter 'phys_efptr'
Warning(include/linux/rio.h:123): No description found for parameter 'em_efptr'
Warning(include/linux/rio.h:123): No description found for parameter 'pwcback'
Warning(include/linux/rio.h:247): No description found for parameter 'set_domain'
Warning(include/linux/rio.h:247): No description found for parameter 'get_domain'
Warning(drivers/rapidio/rio-scan.c:1133): No description found for parameter 'rdev'
Warning(drivers/rapidio/rio-scan.c:1133): Excess function parameter 'port' description in 'rio_init_em'
Warning(drivers/rapidio/rio.c:349): No description found for parameter 'rdev'
Warning(drivers/rapidio/rio.c:349): Excess function parameter 'mport' description in 'rio_request_inb_pwrite'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'port'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'local'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'destid'
Warning(drivers/rapidio/rio.c:393): No description found for parameter 'hopcount'
Warning(drivers/rapidio/rio.c:393): Excess function parameter 'rdev' description in 'rio_mport_get_physefb'
Warning(drivers/rapidio/rio.c:845): Excess function parameter 'local' description in 'rio_std_route_clr_table'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
Linus Torvalds [Sun, 30 May 2010 16:02:02 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/kyle/parisc-2.6

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
  parisc: Remove unnecessary macros from entry.S
  parisc: LWS fixes for syscall.S
  parisc: Delete unnecessary nop's in entry.S
  parisc: Avoid interruption in critical region in entry.S
  parisc: invoke oom-killer from page fault
  parisc: clear floating point exception flag on SIGFPE signal
  parisc: Use of align_frame provides stack frame.

10 years agoRevert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"
Linus Torvalds [Sun, 30 May 2010 16:00:03 +0000]
Revert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"

This reverts commit 0ac0c0d0f837c499afd02a802f9cf52d3027fa3b, which
caused cross-architecture build problems for all the wrong reasons.
IA64 already added its own version of __node_random(), but the fact is,
there is nothing architectural about the function, and the original
commit was just badly done. Revert it, since no fix is forthcoming.

Requested-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Sun, 30 May 2010 15:56:39 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: clean up on forwarded aborted mds request
  ceph: fix leak of osd authorizer
  ceph: close out mds, osd connections before stopping auth
  ceph: make lease code DN specific
  fs/ceph: Use ERR_CAST
  ceph: renew auth tickets before they expire
  ceph: do not resend mon requests on auth ticket renewal
  ceph: removed duplicated #includes
  ceph: avoid possible null dereference
  ceph: make mds requests killable, not interruptible
  sched: add wait_for_completion_killable_timeout

10 years agoSLUB: Allow full duplication of kmalloc array for 390
Christoph Lameter [Thu, 27 May 2010 14:17:17 +0000]
SLUB: Allow full duplication of kmalloc array for 390

Commit 756dee75872a2a764b478e18076360b8a4ec9045 ("SLUB: Get rid of dynamic DMA
kmalloc cache allocation") makes S390 run out of kmalloc caches.  Increase the
number of kmalloc caches to a safe size.

Cc: <stable@kernel.org> [ .33 and .34 ]
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

10 years agoparisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
John David Anglin [Sun, 11 Apr 2010 16:36:14 +0000]
parisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic

Based on the generic implementation of kmap_atomic and kunmap_atomic,
we should call pagefault_disable and pagefault_enable in our PA8000

The define for kmap_atomic_prot was also missing, and I updated
kmap_atomic_pfn to use the generic implementation because of the
change to kmap_atomic.

I believe that this change is needed to fix the fork copy-on-write

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoparisc: Remove unnecessary macros from entry.S
John David Anglin [Sun, 11 Apr 2010 17:03:54 +0000]
parisc: Remove unnecessary macros from entry.S

The EXTR, DEP and DEPI macros are unnecessary.  There are PA 1.X
pneumonics available with the same functionality, and the DEP and DEPI
macros conflict with assembler pneumonics.

Tested on a variety of 32 and 64-bit systems.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoparisc: LWS fixes for syscall.S
John David Anglin [Sun, 11 Apr 2010 17:26:34 +0000]
parisc: LWS fixes for syscall.S

1) Gate immediately and save a branch.
2) Fix off by one error in checking entry number.
3) Use sr7 instead of sr3 in error return path as sr3 might not
   contain correct value.
4) Enable locking on UP systems to prevent incorrect operation of
   the cas_action critical region on page faults.

Tested on several systems, including UP c3750 with kernel.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoparisc: Delete unnecessary nop's in entry.S
John David Anglin [Sun, 11 Apr 2010 17:08:51 +0000]
parisc: Delete unnecessary nop's in entry.S

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoparisc: Avoid interruption in critical region in entry.S
John David Anglin [Sun, 11 Apr 2010 17:12:56 +0000]
parisc: Avoid interruption in critical region in entry.S

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoparisc: invoke oom-killer from page fault
Nick Piggin [Thu, 22 Apr 2010 16:06:23 +0000]
parisc: invoke oom-killer from page fault

As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.

Cc: linux-parisc@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

10 years agoparisc: clear floating point exception flag on SIGFPE signal
Helge Deller [Mon, 3 May 2010 20:44:21 +0000]
parisc: clear floating point exception flag on SIGFPE signal

Clear the floating point exception flag before returning to
user space. This is needed, else the libc trampoline handler
may hit the same SIGFPE again while building up a trampoline
to a signal handler.

Fixes debian bug #559406.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>

10 years agoparisc: Use of align_frame provides stack frame.
Carlos O'Donell [Wed, 31 Mar 2010 20:42:33 +0000]
parisc: Use of align_frame provides stack frame.

Any assembly constant generated with the use of
align_frame includes size for a full stack frame.

Signed-off-by: Carlos O'Donell <carlos@systemhalted.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sat, 29 May 2010 22:31:57 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (26 commits)
  ALSA: snd-usb-caiaq: Bump version number to 1.3.21
  ALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
  ALSA: snd-usb-caiaq: Simplify single case to an 'if'
  ALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ
  ALSA: hda: Use LPIB for a Shuttle device
  ALSA: hda: Add support for another Lenovo ThinkPad Edge in conexant codec
  ALSA: hda: Use LPIB for Sony VPCS11V9E
  ALSA: usb-audio: fix feature unit parser for UAC2
  ALSA: asihpi - Minor code cleanup
  ALSA: asihpi - Add support for new ASI8800 family
  ALSA: asihpi - Fix bug preventing outstream_write preload from happening
  ALSA: asihpi - Fix imbalanced lock path in hw_message
  ALSA: asihpi - Remove support for old ASI8800 family
  ALSA: asihpi - Add hd radio blend functions
  ALSA: asihpi - Remove unused io map functions
  ALSA: usb-audio: add support for UAC2 pitch control
  ALSA: usb-audio: parse UAC2 endpoint descriptors correctly
  ALSA: usb-audio: fix return values
  ALSA: usb-audio: parse more format descriptors with structs
  sound: Add missing spin_unlock

10 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:36 +0000]
Merge branch 'fix/hda' into for-linus

10 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:33 +0000]
Merge branch 'fix/misc' into for-linus

10 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:27 +0000]
Merge branch 'fix/asoc' into for-linus

10 years agoALSA: snd-usb-caiaq: Bump version number to 1.3.21
Mark Hills [Sat, 29 May 2010 15:53:26 +0000]
ALSA: snd-usb-caiaq: Bump version number to 1.3.21

Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
Mark Hills [Sat, 29 May 2010 15:53:25 +0000]
ALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"

Do not explicity set the default input mode. Use the hardware default
of mode 0 ('Control vinyl'), which is now available.

This reverts commit e3ca4c9.

Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: snd-usb-caiaq: Simplify single case to an 'if'
Mark Hills [Sat, 29 May 2010 15:53:24 +0000]
ALSA: snd-usb-caiaq: Simplify single case to an 'if'

After removing code, only one case remains. So use an 'if' instead.

Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ
Mark Hills [Sat, 29 May 2010 15:53:23 +0000]
ALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ

This feature was undocumented on early A4DJ units. It is indicated
by lighting both the 'line' and 'phono' lamps at the same time.
Newer units document this and the newer Windows drivers enable this
for all units, so restore the functionality.

This patch simplifies the code and changes the mode mapping to match
the A8DJ, favouring simpler code and consistency over keeping the
existing mapping.

Both 'Control vinyl' and 'Phono' input modes enable the hardware
preamp. The difference is the input impedance.

This reverts commit 9a9527e.

Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Mark Hills <mark@pogo.org.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoALSA: hda: Use LPIB for a Shuttle device
Daniel T Chen [Sat, 29 May 2010 15:04:11 +0000]
ALSA: hda: Use LPIB for a Shuttle device

BugLink: https://launchpad.net/bugs/551949

Symptom: On the reporter's Shuttle device, using PulseAudio in Ubuntu
10.04 LTS results in "popping clicking" audio with the PA crashing
shortly thereafter.

Test case: Using Ubuntu 10.04 LTS (Linux, Linux 2.6.33, or
Linux 2.6.34, adjust the HDA device's volume with PulseAudio.

Resolution: add SSID for this machine to the position_fix quirk table,
explicitly specifying the LPIB method.

Reported-and-Tested-By: Christian Mehlis <mehlis@inf.fu-berlin.de>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

10 years agoceph: clean up on forwarded aborted mds request
Sage Weil [Fri, 28 May 2010 23:43:16 +0000]
ceph: clean up on forwarded aborted mds request

If an mds request is aborted (timeout, SIGKILL), it is left registered to
keep our state in sync with the mds.  If we get a forward notification,
though, we know the request didn't succeed and we can unregister it
safely.  We were trying to resend it, but then bailing out (and not
unregistering) in __do_request.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: fix leak of osd authorizer
Sage Weil [Thu, 27 May 2010 21:15:49 +0000]
ceph: fix leak of osd authorizer

Release the ceph_authorizer when releasing osd state.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: close out mds, osd connections before stopping auth
Sage Weil [Sat, 29 May 2010 16:41:23 +0000]
ceph: close out mds, osd connections before stopping auth

The auth module (part of the mon_client) is needed to free any
ceph_authorizer(s) used by the mds and osd connections.  Flush the msgr
workqueue before stopping monc to ensure that the destroy_authorizer
auth op is available when those connections are closed out.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: make lease code DN specific
Sage Weil [Tue, 25 May 2010 23:45:25 +0000]
ceph: make lease code DN specific

The lease code includes a mask in the CEPH_LOCK_* namespace, but that
namespace is changing, and only one mask (formerly _DN == 1) is used, so
hard code for that value for now.

If we ever extend this code to handle leases over different data types we
can extend it accordingly.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agofs/ceph: Use ERR_CAST
Julia Lawall [Sat, 22 May 2010 10:01:14 +0000]
fs/ceph: Use ERR_CAST

Use ERR_CAST(x) rather than ERR_PTR(PTR_ERR(x)).  The former makes more
clear what is the purpose of the operation, which otherwise looks like a

In the case of fs/ceph/inode.c, ERR_CAST is not needed, because the type of
the returned value is the same as the type of the enclosing function.

The semantic patch that makes this change is as follows:

// <smpl>
type T;
T x;
identifier f;

T f (...) { <+...
+ x
 ...+> }

expression x;

// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: renew auth tickets before they expire
Sage Weil [Tue, 25 May 2010 22:39:06 +0000]
ceph: renew auth tickets before they expire

We were only requesting renewal after our tickets expire; do so before
that.  Most of the low-level logic for this was already there; just use

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: do not resend mon requests on auth ticket renewal
Sage Weil [Tue, 25 May 2010 22:38:06 +0000]
ceph: do not resend mon requests on auth ticket renewal

We only want to send pending mon requests when we successfully
authenticate.  If we are already authenticated, like when we renew our
ticket, there is no need to resend pending requests.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: removed duplicated #includes
Andrea Gelmini [Sun, 23 May 2010 19:47:58 +0000]
ceph: removed duplicated #includes

fs/ceph/auth.c: linux/slab.h is included more than once.
fs/ceph/super.h: linux/slab.h is included more than once.

Acked-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: avoid possible null dereference
Sage Weil [Tue, 25 May 2010 16:24:42 +0000]
ceph: avoid possible null dereference

ac->ops may be null; use protocol id in error message instead.

Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoceph: make mds requests killable, not interruptible
Sage Weil [Mon, 24 May 2010 18:15:51 +0000]
ceph: make mds requests killable, not interruptible

The underlying problem is that many mds requests can't be restarted.  For
example, a restarted create() would return -EEXIST if the original request
succeeds.  However, we do not want a hung MDS to hang the client too.  So,
use the _killable wait_for_completion variants to abort on SIGKILL but
nothing else.

Signed-off-by: Sage Weil <sage@newdream.net>

10 years agosched: add wait_for_completion_killable_timeout
Sage Weil [Sat, 29 May 2010 16:12:30 +0000]
sched: add wait_for_completion_killable_timeout

Add missing _killable_timeout variant for wait_for_completion that will
return when a timeout expires or the task is killed.

CC: Ingo Molnar <mingo@elte.hu>
CC: Andreas Herrmann <andreas.herrmann3@amd.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Mike Galbraith <efault@gmx.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Sage Weil <sage@newdream.net>

10 years agoMerge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Ingo Molnar [Fri, 28 May 2010 08:24:03 +0000]
Merge branch 'tip/perf/core' of git://git./linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent

10 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 28 May 2010 23:14:40 +0000]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon: fix the r100/r200 ums block 0 page fix

10 years agoMerge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb...
Linus Torvalds [Fri, 28 May 2010 23:14:17 +0000]
Merge branch 'idle-release' of git://git./linux/kernel/git/lenb/linux-idle-2.6

* 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6:
  intel_idle: native hardware cpuidle driver for latest Intel processors
  ACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case
  acpi_pad: uses MONITOR/MWAIT, so it doesn't need to clear TS_POLLING
  sched: clarify commment for TS_POLLING
  ACPI: allow a native cpuidle driver to displace ACPI
  cpuidle: make cpuidle_curr_driver static
  cpuidle: add cpuidle_unregister_driver() error check
  cpuidle: fail to register if !CONFIG_CPU_IDLE

10 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...
Linus Torvalds [Fri, 28 May 2010 21:42:18 +0000]
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: (27 commits)
  ACPI: Don't let acpi_pad needlessly mark TSC unstable
  drivers/acpi/sleep.h: Checkpatch cleanup
  ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion
  ACPI: delete unused c-state promotion/demotion data strucutures
  ACPI: video: fix acpi_backlight=video
  ACPI: EC: Use kmemdup
  drivers/acpi: use kasprintf
  ACPI, APEI, EINJ injection parameters support
  Add x64 support to debugfs
  ACPI, APEI, Use ERST for persistent storage of MCE
  ACPI, APEI, Error Record Serialization Table (ERST) support
  ACPI, APEI, Generic Hardware Error Source memory error support
  ACPI, APEI, UEFI Common Platform Error Record (CPER) header
  Unified UUID/GUID definition
  ACPI Hardware Error Device (PNP0C33) support
  ACPI, APEI, PCIE AER, use general HEST table parsing in AER firmware_first setup
  ACPI, APEI, Document for APEI
  ACPI, APEI, EINJ support
  ACPI, APEI, HEST table parsing
  ACPI, APEI, APEI supporting infrastructure

10 years agodrm/radeon: fix the r100/r200 ums block 0 page fix
Dave Airlie [Fri, 28 May 2010 20:50:37 +0000]
drm/radeon: fix the r100/r200 ums block 0 page fix

airlied -> brown paper bag.

I blame Hi-5 or the Wiggles for lowering my IQ, move the fix inside some
brackets instead of breaking everything in site.

Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

10 years agoMerge branch 'ht-delete-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:20:35 +0000]
Merge branch 'ht-delete-2.6.35' into release

10 years agoMerge branch 'misc-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:18:20 +0000]
Merge branch 'misc-2.6.35' into release

10 years agoMerge branches 'video' and 'video-edid' into release
Len Brown [Fri, 28 May 2010 20:18:12 +0000]
Merge branches 'video' and 'video-edid' into release

10 years agoMerge branch 'acpi_enable' into release
Len Brown [Fri, 28 May 2010 20:17:27 +0000]
Merge branch 'acpi_enable' into release

10 years agoMerge branch 'bjorn-pci-root-v4-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:17:16 +0000]
Merge branch 'bjorn-pci-root-v4-2.6.35' into release

10 years agoACPI: Don't let acpi_pad needlessly mark TSC unstable
Venkatesh Pallipadi [Tue, 18 May 2010 21:39:16 +0000]
ACPI: Don't let acpi_pad needlessly mark TSC unstable

acpi pad driver kind of aggressively marks TSC as unstable at init
time, on mwait capable and non X86_FEATURE_NONSTOP_TSC systems. This is
irrespective of whether pad driver is ever going to be used on the
system or deep C-states are supported/used. This will affect every user
who just happens to compile in (or get a kernel version which
compiles in) acpi pad driver.

Move mark_tsc_unstable() out of init to the actual idle invocation path
of the pad driver.

There is also another bug/missing_feature in the code that it does not
support 'always running apic timer' and switches to broadcast mode
unconditionally. Shaohua, can you take a look at that please.

Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>

10 years agodrivers/acpi/sleep.h: Checkpatch cleanup
Andrea Gelmini [Sat, 27 Feb 2010 16:51:42 +0000]
drivers/acpi/sleep.h: Checkpatch cleanup

drivers/acpi/sleep.h:3: WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Len Brown <len.brown@intel.com>

10 years agoACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion
Venkatesh Pallipadi [Thu, 22 Apr 2010 23:48:33 +0000]
ACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion

acpi_enter_[simple,bm] does
idle timing in ns, convert it to timeval, then to us, then to
pmtimer_ticks and then back to ns.

This patch changes things to
idle timing in ns, convert it to us, and then to pmtimer_ticks.

Just saves an imul along this path, but makes the code cleaner.

Signed-off-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Len Brown <len.brown@intel.com>

10 years agointel_idle: native hardware cpuidle driver for latest Intel processors
Len Brown [Mon, 8 Mar 2010 19:07:30 +0000]
intel_idle: native hardware cpuidle driver for latest Intel processors

This EXPERIMENTAL driver supersedes acpi_idle on
Intel Atom Processors, Intel Core i3/i5/i7 Processors
and associated Intel Xeon processors.

It does not support the Intel Core2 processor or earlier.

For kernels configured with ACPI, CONFIG_INTEL_IDLE=y
allows intel_idle to probe before the ACPI processor driver.
Booting with "intel_idle.max_cstate=0" disables intel_idle
and the system will fall back on ACPI's "acpi_idle".

Typical Linux distributions load ACPI processor module early,
making CONFIG_INTEL_IDLE=m not easily useful on ACPI platforms.

intel_idle probes all processors at module_init time.
Processors that are hot-added later will be limited
to using C1 in idle.

Signed-off-by: Len Brown <len.brown@intel.com>

10 years agoACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case
Len Brown [Mon, 24 May 2010 18:27:44 +0000]
ACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case

commit d306ebc28649b89877a22158fe0076f06cc46f60
(ACPI: Be in TS_POLLING state during mwait based C-state entry)
fixed an important power & performance issue where ACPI c2 and c3 C-states
were clearing TS_POLLING even when using MWAIT (ACPI_STATE_FFH).
That bug had been causing us to receive redundant scheduling interrups
when we had already been woken up by MONITOR/MWAIT.

Following up on that...

In the MWAIT case, we don't have to subsequently
check need_resched(), as that c heck was there
for the TS_POLLING-clearing case.

Note that not only does the cpuidle calling function
already check need_resched() before calling us, the
low-level entry into monitor/mwait calls it twice --
guaranteeing that a write to the trigger address
can not go un-noticed.

Also, in this case, we don't have to set TS_POLLING
when we wake, because we never cleared it.

Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Venkatesh Pallipadi <venki@google.com>

10 years agoMerge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
Linus Torvalds [Fri, 28 May 2010 17:20:59 +0000]
Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Fix leds-gpio openfirmware compile issue
  leds: Kconfig fixes

10 years agotracing: fix for tracepoint API change
Stephen Rothwell [Fri, 28 May 2010 05:05:00 +0000]
tracing: fix for tracepoint API change

Commit 38516ab59fbc5b3bb278cf5e1fe2867c70cff32e ("tracing: Let
tracepoints have data passed to tracepoint callbacks") requires this
fixup to the powerpc code.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

10 years agoMerge branch 'for-linus/2635-updates' of git://git.fluff.org/bjdooks/linux
Linus Torvalds [Fri, 28 May 2010 17:19:03 +0000]
Merge branch 'for-linus/2635-updates' of git://git.fluff.org/bjdooks/linux

* 'for-linus/2635-updates' of git://git.fluff.org/bjdooks/linux:
  ARM: S5PV210: serial: Fix section mismatch warning
  ARM: s3c2410_defconfig: Add new machines
  ARM: s3c6400_defconfig: Add framebuffer and basic LCD
  ARM: s3c6400_defconfig: Add RTC driver support
  ARM: s3c6400_defconfig: Enable USB host side
  ARM: s3c6400_defconfig: Add SPI driver
  ARM: s3c6400_defconfig: Update compiled machines
  ARM: S5P: Regoster clk_xusbxti clock for hsotg driver
  ARM: S3C64XX: Add USB OTG HCLK to the list of clocks
  ARM: SAMSUNG: gpio-cfg.h: update documentation
  ARM: SAMSUNG: Documentation: add documentation on GPIO code
  ARM: SAMSUNG: Fix documentation for s3c_gpio_cfgpin()
  ARM: S3C24XX: Documentation: add section on gpiolib changes
  ARM: S3C24XX: Documentation: update GPIO documentation
  ARM: S3C24XX: Documentation: update documentation overview
  ARM: SAMSUNG: Documentation: update directory layout
  ARM: SAMSUNG: Documentation: update the list of SoCs supported

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 28 May 2010 17:18:40 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (22 commits)
  netlink: bug fix: wrong size was calculated for vfinfo list blob
  netlink: bug fix: don't overrun skbs on vf_port dump
  xt_tee: use skb_dst_drop()
  netdev/fec: fix ifconfig eth0 down hang issue
  cnic: Fix context memory init. on 5709.
  drivers/net: Eliminate a NULL pointer dereference
  drivers/net/hamradio: Eliminate a NULL pointer dereference
  be2net: Patch removes redundant while statement in loop.
  ipv6: Add GSO support on forwarding path
  net: fix __neigh_event_send()
  vhost: fix the memory leak which will happen when memory_access_ok fails
  vhost-net: fix to check the return value of copy_to/from_user() correctly
  vhost: fix to check the return value of copy_to/from_user() correctly
  vhost: Fix host panic if ioctl called with wrong index
  net: fix lock_sock_bh/unlock_sock_bh
  net/iucv: Add missing spin_unlock
  net: ll_temac: fix checksum offload logic
  net: ll_temac: fix interrupt bug when interrupt 0 is used
  sctp: dubious bitfields in sctp_transport
  ipmr: off by one in __ipmr_fill_mroute()

10 years agoFRV: ARCH_KMALLOC_MINALIGN was already defined
David Howells [Fri, 28 May 2010 09:41:16 +0000]
FRV: ARCH_KMALLOC_MINALIGN was already defined

ARCH_KMALLOC_MINALIGN was already defined in asm/mem-layout.h and so shouldn't
have been added to asm/cache.h as well, but rather altered in place.

The commit that added it to asm/cache.h was:

commit 69dcf3db03626c4f18de624e8632454ea12ff260
Author: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Date:   Mon May 24 14:32:54 2010 -0700


    Architectures that handle DMA-non-coherent memory need to set
    ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is
    DMA-safe: the buffer doesn't share a cache with the others.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>