safe/jmp/linux-2.6
9 years agoMerge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...
Ingo Molnar [Tue, 8 Jun 2010 22:45:53 +0000 (00:45 +0200)]
Merge branch 'perf/urgent' of git://git./linux/kernel/git/frederic/random-tracing into perf/urgent

9 years agotracing: Fix null pointer deref with SEND_SIG_FORCED
Oleg Nesterov [Thu, 3 Jun 2010 21:34:09 +0000 (23:34 +0200)]
tracing: Fix null pointer deref with SEND_SIG_FORCED

BUG: unable to handle kernel NULL pointer dereference at
0000000000000006
IP: [<ffffffff8107bd37>] ftrace_raw_event_signal_generate+0x87/0x140

TP_STORE_SIGINFO() forgets about SEND_SIG_FORCED, fix.

We should probably export is_si_special() and change TP_STORE_SIGINFO()
to use it in the longer term.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Roland McGrath <roland@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Masami Hiramatsu <mhiramat@redhat.com>
Cc: 2.6.33.x-2.6.34.x <stable@kernel.org>
LKML-Reference: <20100603213409.GA8307@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
9 years agoMerge branch 'for-tip' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile...
Ingo Molnar [Tue, 8 Jun 2010 17:15:37 +0000 (19:15 +0200)]
Merge branch 'for-tip' of git://git./linux/kernel/git/rric/oprofile into perf/urgent

9 years agoperf: Fix signed comparison in perf_adjust_period()
Peter Zijlstra [Fri, 4 Jun 2010 13:18:01 +0000 (15:18 +0200)]
perf: Fix signed comparison in perf_adjust_period()

Frederic reported that frequency driven swevents didn't work properly
and even caused a division-by-zero error.

It turns out there are two bugs, the division-by-zero comes from a
failure to deal with that in perf_calculate_period().

The other was more interesting and turned out to be a wrong comparison
in perf_adjust_period(). The comparison was between an s64 and u64 and
got implicitly converted to an unsigned comparison. The problem is
that period_left is typically < 0, so it ended up being always true.

Cure this by making the local period variables s64.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agopowerpc/oprofile: fix potential buffer overrun in op_model_cell.c
Denis Kirjanov [Tue, 1 Jun 2010 19:43:34 +0000 (15:43 -0400)]
powerpc/oprofile: fix potential buffer overrun in op_model_cell.c

Fix potential initial_lfsr buffer overrun.
Writing past the end of the buffer could happen when index == ENTRIES

Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Robert Richter <robert.richter@amd.com>
9 years agoMerge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme...
Ingo Molnar [Fri, 4 Jun 2010 14:55:19 +0000 (16:55 +0200)]
Merge branch 'perf/urgent' of git://git./linux/kernel/git/acme/linux-2.6 into perf/urgent

9 years agoperf symbols: Set the DSO long name when using symbol_conf.vmlinux_name
Arnaldo Carvalho de Melo [Thu, 3 Jun 2010 21:35:55 +0000 (18:35 -0300)]
perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name

We need to set the long name to the name specified via, for instance,
'perf annotate --vmlinux /path/to/vmlinux', if not it will remain as
'[kernel.kallsyms]' and that will make annotate fail when passing this
as the vmlinux name in the call to objdump.

The way this is setup grew unwieldly and dso__load_vmlinux is the
function that should allocate space for the long name, with callers not
assuming that filenames should be allocated somehow by then (strdup,
dso__build_id_filename, etc).

For now this is the minimalistic patch, a proper fix for .36 will be
made.

Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20100604003900.GD10469@ghostprotocols.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf: Fix crash in swevents
Peter Zijlstra [Thu, 3 Jun 2010 09:21:20 +0000 (11:21 +0200)]
perf: Fix crash in swevents

Frederic reported that because swevents handling doesn't disable IRQs
anymore, we can get a recursion of perf_adjust_period(), once from
overflow handling and once from the tick.

If both call ->disable, we get a double hlist_del_rcu() and trigger
a LIST_POISON2 dereference.

Since we don't actually need to stop/start a swevent to re-programm
the hardware (lack of hardware to program), simply nop out these
callbacks for the swevent pmu.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1275557609.27810.35218.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoMerge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme...
Ingo Molnar [Wed, 2 Jun 2010 07:13:12 +0000 (09:13 +0200)]
Merge branch 'perf/urgent' of git://git./linux/kernel/git/acme/linux-2.6 into perf/urgent

9 years agoperf buildid-list: Fix --with-hits event processing
Arnaldo Carvalho de Melo [Tue, 1 Jun 2010 15:37:05 +0000 (12:37 -0300)]
perf buildid-list: Fix --with-hits event processing

When we use plain 'perf buildid-list' we use only what is in the buildid
table in the perf.data header. And those have absolute pathnames because
at 'perf record' time we used __perf_session__process_events and that
doesn't sets up the path shortening code in map__new() that happens if
symbol_conf.full_paths is false, the default.

On the other hand, when we use 'perf buildid-list --with-hits' we
process all the events using perf_session__process_events, adding
entries to the global DSO list _after_ removing the current directory
from the DSO name, for presentation purposes.

Because of that we end up having two entries in the DSO list when
recording events for binaries using relative pathnames.

Fix it minimally by setting symbol_conf.full_paths to true when marking
the DSOs with hits in 'perf buildid-list --with-hits', as used by 'perf
archive'

Right fix longer term is to shorten the path only at presentation time.
Will be done for 2.6.36.

Reported-by: Stephane Eranian <eranian@google.com>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20100601183837.GC4093@ghostprotocols.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf scripts python: Give field dict to unhandled callback
Pierre Tardy [Mon, 31 May 2010 21:12:09 +0000 (23:12 +0200)]
perf scripts python: Give field dict to unhandled callback

trace_unhandled() callback does not allow to access event fields, this patch
resolves the problem.

It can also been used as a more pythonic and flexible way for script writters
to demux event types

This will for example greatly simplify pytimechart event demux.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Acked-by: Tom Zanussi <tzanussi@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <1275340329-2397-1-git-send-email-tardyp@gmail.com>
Signed-off-by: Pierre Tardy <tardyp@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf hist: fix objdump output parsing
Konstantin Stepanyuk [Wed, 26 May 2010 22:10:11 +0000 (02:10 +0400)]
perf hist: fix objdump output parsing

hist_entry__annotate() runs objdump with -S option so the output may contain
lines of any format. If a line starts with a colon strtoull() returns 0 and
calculated offset will be negative. This causes perf annotate segfaults.

Make sure that strtoull() has parsed at least one digit.

Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Konstantin Stepanyuk <konstantin.stepanyuk@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf-record: Check correct pid when forking
Borislav Petkov [Mon, 31 May 2010 21:18:18 +0000 (23:18 +0200)]
perf-record: Check correct pid when forking

When forking the child to be traced, we should check the correct
return value from fork() and not a local variable which is otherwise
unused.

Signed-off-by: Borislav Petkov <bp@alien8.de>
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>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <20100531211818.GA30175@liondog.tnic>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
9 years agoperf: Do the comm inheritance per thread in event__process_task
Frederic Weisbecker [Mon, 31 May 2010 22:43:07 +0000 (00:43 +0200)]
perf: Do the comm inheritance per thread in event__process_task

event__process_task() doesn't propagate the comm copy on clone,
but only on process fork. So we loose all the tid:comm resolution
for tasks that aren't a main process thread.

Progragate the per thread granularity to event__process_task for
pid resolution.

This fixes various unresolved pids in perf sched, especially when
we trace multithread processes. The problem is quickly reproducible
with the messaging benchmark using the multithread mode "-t" :

perf sched record perf bench sched messaging -t

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>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
9 years agoperf: Use event__process_task from perf sched
Frederic Weisbecker [Mon, 31 May 2010 22:03:40 +0000 (00:03 +0200)]
perf: Use event__process_task from perf sched

perf sched uses event__process_comm(), which means it can resolve
comms from:

- tasks that have exec'ed (kernel comm events)
- tasks that were running when perf record started the actual
  recording (synthetized comm events)

But perf sched can't resolve the pids of tasks that were created
after the recording started.

To solve this, we need to inherit the comms on fork events using
event__process_task().

This fixes various unresolved pids in perf sched, easily visible
with:
perf sched record perf bench sched messaging

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>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
9 years agoperf: Process comm events by tid
Frederic Weisbecker [Mon, 31 May 2010 21:38:44 +0000 (23:38 +0200)]
perf: Process comm events by tid

When we synthetize the existing running tasks though procfs,
we walk through every threads of a process, queuing one comm
events per tid.

But then on report time, event__process_comm() only creates and
sets the comm on a per process granularity. This is the right
thing for comm events that came from the kernel, as they are
only created on exec. Sub-threads then inherit their comm
from fork events. But that doesn't work with our synthetized
comm events taken from procfs informations as the per thread
granularity is done on comm events directly there.

Hence we need event__process_comm() to work with the tid rather
than the pid. It won't change anything for comm events coming
from the kernel but this will fix the synthetized ones.

Before:

$ ./perf report -D | grep COMM | grep firefox

0x2c7b8 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c7d0 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c7e8 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c800 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c818 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c830 [0x18]: PERF_RECORD_COMM: firefox:5297

After:
$ ./perf report -D | grep COMM | grep firefox

0x2c7b8 [0x18]: PERF_RECORD_COMM: firefox:5297
0x2c7d0 [0x18]: PERF_RECORD_COMM: firefox:5299
0x2c7e8 [0x18]: PERF_RECORD_COMM: firefox:5300
0x2c800 [0x18]: PERF_RECORD_COMM: firefox:5308
0x2c818 [0x18]: PERF_RECORD_COMM: firefox:5309
0x2c830 [0x18]: PERF_RECORD_COMM: firefox:5312

This fixes various unresolved pid on perf sched.

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>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
9 years agoblktrace: Fix new kernel-doc warnings
Randy Dunlap [Sat, 29 May 2010 18:45:07 +0000 (11:45 -0700)]
blktrace: Fix new kernel-doc warnings

Fix blktrace.c kernel-doc warnings:
 Warning(kernel/trace/blktrace.c:858): No description found for parameter 'ignore'
 Warning(kernel/trace/blktrace.c:890): No description found for parameter 'ignore'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <20100529114507.c466fc1e.randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events: Fix unincremented buffer base on partial copy
Frederic Weisbecker [Thu, 27 May 2010 19:34:58 +0000 (21:34 +0200)]
perf_events: Fix unincremented buffer base on partial copy

If a sample size crosses to the next page boundary, the copy
will be made in more than one step. However we forget to advance
the source offset for the next copy, leading to unexpected double
copies that completely mess up the traces.

This fixes various kinds of bad traces that have irrelevant
data inside, as an example:

geany-4979  [001]  5758.077775: sched_switch: prev_comm=! prev_pid=121
prev_prio=0 prev_state=S|D|Z|X|x ==> next_comm= next_pid=7497072
next_prio=0

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1274988898-5639-1-git-send-regression-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events: Fix event scheduling issues introduced by transactional API
Stephane Eranian [Tue, 25 May 2010 14:23:10 +0000 (16:23 +0200)]
perf_events: Fix event scheduling issues introduced by transactional API

The transactional API patch between the generic and model-specific
code introduced several important bugs with event scheduling, at
least on X86. If you had pinned events, e.g., watchdog,  and were
over-committing the PMU, you would get bogus counts. The bug was
showing up on Intel CPU because events would move around more
often that on AMD. But the problem also existed on AMD, though
harder to expose.

The issues were:

 - group_sched_in() was missing a cancel_txn() in the error path

 - cpuc->n_added was not properly maintained, leading to missing
   actions in hw_perf_enable(), i.e., n_running being 0. You cannot
   update n_added until you know the transaction has succeeded. In
   case of failed transaction n_added was not adjusted back.

 - in case of failed transactions, event_sched_out() was called
   and eventually invoked x86_disable_event() to touch the HW reg.
   But with transactions, on X86, event_sched_in() does not touch
   HW registers, it simply collects events into a list. Thus, you
   could end up calling x86_disable_event() on a counter which
   did not correspond to the current event when idx != -1.

The patch modifies the generic and X86 code to avoid all those problems.

First, we keep track of the number of events added last. In case the
transaction fails, we substract them from n_added. This approach is
necessary (as opposed to delaying updates to n_added) because not all
event updates use the transaction API, e.g., single events.

Second, we encapsulate the event_sched_in() and event_sched_out() in
group_sched_in() inside the transaction. That makes the operations
symmetrical and you can also detect that you are inside a transaction
and skip the HW reg access by checking cpuc->group_flag.

With this patch, you can now overcommit the PMU even with pinned
system-wide events present and still get valid counts.

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1274796225.5882.1389.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events, trace: Fix perf_trace_destroy(), mutex went missing
Peter Zijlstra [Fri, 21 May 2010 14:22:33 +0000 (16:22 +0200)]
perf_events, trace: Fix perf_trace_destroy(), mutex went missing

Steve spotted I forgot to do the destroy under event_mutex.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1274451913.1674.1707.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events, trace: Fix probe unregister race
Peter Zijlstra [Fri, 21 May 2010 10:31:09 +0000 (12:31 +0200)]
perf_events, trace: Fix probe unregister race

tracepoint_probe_unregister() does not synchronize against the probe
callbacks, so do that explicitly. This properly serializes the callbacks
and the free of the data used therein.

Also, use this_cpu_ptr() where possible.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1274438476.1674.1702.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events: Fix races in group composition
Peter Zijlstra [Thu, 27 May 2010 13:47:49 +0000 (15:47 +0200)]
perf_events: Fix races in group composition

Group siblings don't pin each-other or the parent, so when we destroy
events we must make sure to clean up all cross referencing pointers.

In particular, for destruction of a group leader we must be able to
find all its siblings and remove their reference to it.

This means that detaching an event from its context must not detach it
from the group, otherwise we can end up failing to clear all pointers.

Solve this by clearly separating the attachment to a context and
attachment to a group, and keep the group composed until we destroy
the events.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoperf_events: Fix races and clean up perf_event and perf_mmap_data interaction
Peter Zijlstra [Thu, 27 May 2010 10:54:41 +0000 (12:54 +0200)]
perf_events: Fix races and clean up perf_event and perf_mmap_data interaction

In order to move toward separate buffer objects, rework the whole
perf_mmap_data construct to be a more self-sufficient entity, one
with its own lifetime rules.

This greatly sanitizes the whole output redirection code, which
was riddled with bugs and races.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: <stable@kernel.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
9 years agoLinux 2.6.35-rc1 v2.6.35-rc1
Linus Torvalds [Sun, 30 May 2010 20:21:02 +0000 (13:21 -0700)]
Linux 2.6.35-rc1

.. and thus endeth the merge window.

9 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 (12:46 -0700)]
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

9 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 (12:35 -0700)]
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

9 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 (12:35 -0700)]
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

9 years agoia64: revert __node_random addition
Linus Torvalds [Sun, 30 May 2010 17:08:03 +0000 (10:08 -0700)]
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>
9 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 (09:16 -0700)]
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

9 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 (09:13 -0700)]
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

9 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 (09:13 -0700)]
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
  ...

9 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 (09:12 -0700)]
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

9 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 (09:12 -0700)]
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

9 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 (09:11 -0700)]
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

9 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 (09:06 -0700)]
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

9 years agoCPU: Avoid using unititialized error variable in disable_nonboot_cpus()
Rafael J. Wysocki [Thu, 27 May 2010 20:16:22 +0000 (22:16 +0200)]
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>
9 years agorapidio: fix new kernel-doc warnings
Randy Dunlap [Fri, 28 May 2010 22:08:08 +0000 (15:08 -0700)]
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>
9 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 (09:02 -0700)]
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.

9 years agoRevert "cpusets: randomize node rotor used in cpuset_mem_spread_node()"
Linus Torvalds [Sun, 30 May 2010 16:00:03 +0000 (09:00 -0700)]
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>
9 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 (08:56 -0700)]
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

9 years agoSLUB: Allow full duplication of kmalloc array for 390
Christoph Lameter [Thu, 27 May 2010 14:17:17 +0000 (09:17 -0500)]
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>
9 years agoparisc: Call pagefault_disable/pagefault_enable in kmap_atomic/kunmap_atomic
John David Anglin [Sun, 11 Apr 2010 16:36:14 +0000 (16:36 +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
implementation.

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
bug.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
9 years agoparisc: Remove unnecessary macros from entry.S
John David Anglin [Sun, 11 Apr 2010 17:03:54 +0000 (17:03 +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>
9 years agoparisc: LWS fixes for syscall.S
John David Anglin [Sun, 11 Apr 2010 17:26:34 +0000 (17:26 +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 2.6.33.2 kernel.

Signed-off-by: John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
9 years agoparisc: Delete unnecessary nop's in entry.S
John David Anglin [Sun, 11 Apr 2010 17:08:51 +0000 (17:08 +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>
9 years agoparisc: Avoid interruption in critical region in entry.S
John David Anglin [Sun, 11 Apr 2010 17:12:56 +0000 (17:12 +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>
9 years agoparisc: invoke oom-killer from page fault
Nick Piggin [Thu, 22 Apr 2010 16:06:23 +0000 (16:06 +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>
9 years agoparisc: clear floating point exception flag on SIGFPE signal
Helge Deller [Mon, 3 May 2010 20:44:21 +0000 (20:44 +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>
9 years agoparisc: Use of align_frame provides stack frame.
Carlos O'Donell [Wed, 31 Mar 2010 20:42:33 +0000 (20:42 +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>
9 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 (15:31 -0700)]
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
  ...

9 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:36 +0000 (21:50 +0200)]
Merge branch 'fix/hda' into for-linus

9 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:33 +0000 (21:50 +0200)]
Merge branch 'fix/misc' into for-linus

9 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Sat, 29 May 2010 19:50:27 +0000 (21:50 +0200)]
Merge branch 'fix/asoc' into for-linus

9 years agoALSA: snd-usb-caiaq: Bump version number to 1.3.21
Mark Hills [Sat, 29 May 2010 15:53:26 +0000 (16:53 +0100)]
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>
9 years agoALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
Mark Hills [Sat, 29 May 2010 15:53:25 +0000 (16:53 +0100)]
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>
9 years agoALSA: snd-usb-caiaq: Simplify single case to an 'if'
Mark Hills [Sat, 29 May 2010 15:53:24 +0000 (16:53 +0100)]
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>
9 years agoALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ
Mark Hills [Sat, 29 May 2010 15:53:23 +0000 (16:53 +0100)]
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>
9 years agoALSA: hda: Use LPIB for a Shuttle device
Daniel T Chen [Sat, 29 May 2010 15:04:11 +0000 (11:04 -0400)]
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 2.6.32.12), 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>
9 years agoceph: clean up on forwarded aborted mds request
Sage Weil [Fri, 28 May 2010 23:43:16 +0000 (16:43 -0700)]
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>
9 years agoceph: fix leak of osd authorizer
Sage Weil [Thu, 27 May 2010 21:15:49 +0000 (14:15 -0700)]
ceph: fix leak of osd authorizer

Release the ceph_authorizer when releasing osd state.

Signed-off-by: Sage Weil <sage@newdream.net>
9 years agoceph: close out mds, osd connections before stopping auth
Sage Weil [Sat, 29 May 2010 16:41:23 +0000 (09:41 -0700)]
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>
9 years agoceph: make lease code DN specific
Sage Weil [Tue, 25 May 2010 23:45:25 +0000 (16:45 -0700)]
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>
9 years agofs/ceph: Use ERR_CAST
Julia Lawall [Sat, 22 May 2010 10:01:14 +0000 (12:01 +0200)]
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
no-op.

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:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
T x;
identifier f;
@@

T f (...) { <+...
- ERR_PTR(PTR_ERR(x))
+ x
 ...+> }

@@
expression x;
@@

- ERR_PTR(PTR_ERR(x))
+ ERR_CAST(x)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Sage Weil <sage@newdream.net>
9 years agoceph: renew auth tickets before they expire
Sage Weil [Tue, 25 May 2010 22:39:06 +0000 (15:39 -0700)]
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
it.

Signed-off-by: Sage Weil <sage@newdream.net>
9 years agoceph: do not resend mon requests on auth ticket renewal
Sage Weil [Tue, 25 May 2010 22:38:06 +0000 (15:38 -0700)]
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>
9 years agoceph: removed duplicated #includes
Andrea Gelmini [Sun, 23 May 2010 19:47:58 +0000 (21:47 +0200)]
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>
9 years agoceph: avoid possible null dereference
Sage Weil [Tue, 25 May 2010 16:24:42 +0000 (09:24 -0700)]
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>
9 years agoceph: make mds requests killable, not interruptible
Sage Weil [Mon, 24 May 2010 18:15:51 +0000 (11:15 -0700)]
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>
9 years agosched: add wait_for_completion_killable_timeout
Sage Weil [Sat, 29 May 2010 16:12:30 +0000 (09:12 -0700)]
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>
9 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 (10:24 +0200)]
Merge branch 'tip/perf/core' of git://git./linux/kernel/git/rostedt/linux-2.6-trace into perf/urgent

9 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 (16:14 -0700)]
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

9 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 (16:14 -0700)]
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

9 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 (14:42 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (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
  ...

9 years agodrm/radeon: fix the r100/r200 ums block 0 page fix
Dave Airlie [Fri, 28 May 2010 20:50:37 +0000 (06:50 +1000)]
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>
9 years agoMerge branch 'ht-delete-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:20:35 +0000 (16:20 -0400)]
Merge branch 'ht-delete-2.6.35' into release

9 years agoMerge branch 'misc-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:18:20 +0000 (16:18 -0400)]
Merge branch 'misc-2.6.35' into release

9 years agoMerge branches 'video' and 'video-edid' into release
Len Brown [Fri, 28 May 2010 20:18:12 +0000 (16:18 -0400)]
Merge branches 'video' and 'video-edid' into release

9 years agoMerge branch 'acpi_enable' into release
Len Brown [Fri, 28 May 2010 20:17:27 +0000 (16:17 -0400)]
Merge branch 'acpi_enable' into release

9 years agoMerge branch 'bjorn-pci-root-v4-2.6.35' into release
Len Brown [Fri, 28 May 2010 20:17:16 +0000 (16:17 -0400)]
Merge branch 'bjorn-pci-root-v4-2.6.35' into release

9 years agoACPI: Don't let acpi_pad needlessly mark TSC unstable
Venkatesh Pallipadi [Tue, 18 May 2010 21:39:16 +0000 (14:39 -0700)]
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>
9 years agodrivers/acpi/sleep.h: Checkpatch cleanup
Andrea Gelmini [Sat, 27 Feb 2010 16:51:42 +0000 (17:51 +0100)]
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>
9 years agoACPI: Minor cleanup eliminating redundant PMTIMER_TICKS to NS conversion
Venkatesh Pallipadi [Thu, 22 Apr 2010 23:48:33 +0000 (16:48 -0700)]
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>
9 years agointel_idle: native hardware cpuidle driver for latest Intel processors
Len Brown [Mon, 8 Mar 2010 19:07:30 +0000 (14:07 -0500)]
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>
9 years agoACPI: acpi_idle: touch TS_POLLING only in the non-MWAIT case
Len Brown [Mon, 24 May 2010 18:27:44 +0000 (14:27 -0400)]
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>
9 years agoMerge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
Linus Torvalds [Fri, 28 May 2010 17:20:59 +0000 (10:20 -0700)]
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

9 years agotracing: fix for tracepoint API change
Stephen Rothwell [Fri, 28 May 2010 05:05:00 +0000 (15:05 +1000)]
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>
9 years agoMerge branch 'for-linus/2635-updates' of git://git.fluff.org/bjdooks/linux
Linus Torvalds [Fri, 28 May 2010 17:19:03 +0000 (10:19 -0700)]
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

9 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 (10:18 -0700)]
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()
  ...

9 years agoFRV: ARCH_KMALLOC_MINALIGN was already defined
David Howells [Fri, 28 May 2010 09:41:16 +0000 (10:41 +0100)]
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

    frv: set ARCH_KMALLOC_MINALIGN

    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>
9 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 28 May 2010 17:16:27 +0000 (10:16 -0700)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix_timer: Fix error path in timer_create
  hrtimer: Avoid double seqlock
  timers: Move local variable into else section
  timers: Fix slack calculation really

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Fri, 28 May 2010 17:07:48 +0000 (10:07 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  remove detritus left by "mm: make read_cache_page synchronous"
  fix fs/sysv s_dirt handling
  fat: convert to use the new truncate convention.
  ext2: convert to use the new truncate convention.
  tmpfs: convert to use the new truncate convention
  fs: convert simple fs to new truncate
  kill spurious reference to vmtruncate
  fs: introduce new truncate sequence
  fs/super: fix kernel-doc warning
  fs/minix: bugfix, number of indirect block ptrs per block depends on block size
  rename the generic fsync implementations
  drop unused dentry argument to ->fsync
  fs: Add missing mutex_unlock
  Fix racy use of anon_inode_getfd() in perf_event.c
  get rid of the magic around f_count in aio
  VFS: fix recent breakage of FS_REVAL_DOT
  Revert "anon_inode: set S_IFREG on the anon_inode"

9 years agoremove detritus left by "mm: make read_cache_page synchronous"
Al Viro [Fri, 28 May 2010 15:34:50 +0000 (11:34 -0400)]
remove detritus left by "mm: make read_cache_page synchronous"

gets minix get_dir_page() in sync with its analogs; back in 2007
Nick has switched read_cache_page() and friends to sync behaviour
(i.e.  they wait for the page to get unlocked, check if it's uptodate
and if it isn't return ERR_PTR(-EIO) instead) and removed the
duplicate logics from the callers.  In case of fs/minix/dir.c he'd
removed only half of that...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
9 years agokconfig: Hide error output in find command in streamline_config.pl
Toralf Förster [Wed, 26 May 2010 18:22:02 +0000 (20:22 +0200)]
kconfig: Hide error output in find command in streamline_config.pl

Finding the list of Makefiles in streamline-config should not report errors.

Also move the "chomp" to the @makefiles array instead of doing it in the
for loop. This is more efficient, and does not make it any less readable
by C programmers.

Signed-off-by: Toralf Foerster <toralf.foerster@gmx.de>
LKML-Reference: <201005262022.02928.toralf.foerster@gmx.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
9 years agokconfig: Fix typo in comment in streamline_config.pl
Toralf Foerster [Fri, 28 May 2010 08:25:52 +0000 (10:25 +0200)]
kconfig: Fix typo in comment in streamline_config.pl

Signed-off-by: Toralf Foerster <toralf.foerster@gmx.de>
LKML-Reference: <201005281025.52753.toralf.foerster@gmx.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
9 years agokconfig: Make a variable local in streamline_config.pl
Toralf Foerster [Fri, 28 May 2010 08:24:59 +0000 (10:24 +0200)]
kconfig: Make a variable local in streamline_config.pl

Proper perl requires that local variables should be declared with 'my',
otherwise this may produce errors.

Signed-off-by: Toralf Foerster <toralf.foerster@gmx.de>
LKML-Reference: <201005281025.00358.toralf.foerster@gmx.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
9 years agonetlink: bug fix: wrong size was calculated for vfinfo list blob
Scott Feldman [Fri, 28 May 2010 10:42:43 +0000 (03:42 -0700)]
netlink: bug fix: wrong size was calculated for vfinfo list blob

The wrong size was being calculated for vfinfo.  In one case, it was over-
calculating using nlmsg_total_size on attrs, in another case, it was
under-calculating by assuming ifla_vf_* structs are packed together, but
each struct is it's own attr w/ hdr (and padding).

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonetlink: bug fix: don't overrun skbs on vf_port dump
Scott Feldman [Fri, 28 May 2010 10:42:18 +0000 (03:42 -0700)]
netlink: bug fix: don't overrun skbs on vf_port dump

Noticed by Patrick McHardy: was continuing to fill skb after a
nla_put_failure, ignoring the size calculated by upper layer.  Now,
return -EMSGSIZE on any overruns, but also allow netdev to
fail ndo_get_vf_port with error other than -EMSGSIZE, thus unwinding
nest.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoxt_tee: use skb_dst_drop()
Eric Dumazet [Fri, 28 May 2010 10:41:17 +0000 (03:41 -0700)]
xt_tee: use skb_dst_drop()

After commit 7fee226a (net: add a noref bit on skb dst), its wrong to
use : dst_release(skb_dst(skb)), since we could decrement a refcount
while skb dst was not refcounted.

We should use skb_dst_drop(skb) instead.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonetdev/fec: fix ifconfig eth0 down hang issue
Bryan Wu [Fri, 28 May 2010 10:40:39 +0000 (03:40 -0700)]
netdev/fec: fix ifconfig eth0 down hang issue

BugLink: http://bugs.launchpad.net/bugs/559065
In fec open/close function, we need to use phy_connect and phy_disconnect
operation before we start/stop phy. Otherwise it will cause system hang.

Only call fec_enet_mii_probe() in open function, because the first open
action will cause NULL pointer error.

Signed-off-by: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoARM: S5PV210: serial: Fix section mismatch warning
Marek Szyprowski [Fri, 28 May 2010 10:21:11 +0000 (19:21 +0900)]
ARM: S5PV210: serial: Fix section mismatch warning

Rename the structure to avoid the following warning:

WARNING: drivers/serial/built-in.o(.data+0x534): Section mismatch in reference from the variable s5p_serial_drv to the function .devexit.text:s3c24xx_serial_remove()
The variable s5p_serial_drv references
the function __devexit s3c24xx_serial_remove()
If the reference is valid then annotate the
variable with __exit* (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>