Commit graph

222038 commits

Author SHA1 Message Date
Christopher Brannon
c3d5d98820 staging: speakup: speakup_txprt.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:38 -07:00
Christopher Brannon
0d42cfe4c1 staging: speakup: speakup_spkout.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:38 -07:00
Christopher Brannon
13f1a041ac staging: speakup: speakup_soft.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Make the file_operations structure const.
* Use strict_strtoul instead of simple_strtoul.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:37 -07:00
Christopher Brannon
e66c3d8475 staging: speakup: speakup_ltlk.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Remove an unused function-like macro.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:37 -07:00
Christopher Brannon
75d6282d8b staging: speakup: speakup_keypc.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Eliminate the unused synth_readable macro.
* Convert function-like macros to inline functions.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:37 -07:00
Christopher Brannon
9d096afa06 staging: speakup: speakup_dummy.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:37 -07:00
Christopher Brannon
2c9e0cb07f staging: speakup: speakup_dtlk.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Replace function-like macros with inline functions.
* Simplify some boolean expressions.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:36 -07:00
Christopher Brannon
227e18d6b6 staging: speakup: speakup_decpc.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:36 -07:00
Christopher Brannon
3d4f7eaf65 staging: speakup: speakup_decext.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Replace function-like macros with inline macros.
* Eliminate a use of the ternary operator, for readability.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:36 -07:00
Christopher Brannon
64d1e5a098 staging: speakup: speakup_bns.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:36 -07:00
Christopher Brannon
d1c07c416c staging: speakup: speakup_audptr.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:36 -07:00
Christopher Brannon
f4931441ae staging: speakup: speakup_apollo.c: style fixes
* Clean this file based on reports from checkpatch.pl.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:35 -07:00
Christopher Brannon
28ba8677bc staging: speakup: speakup_acntsa.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Eliminate an unused function-like macro.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:35 -07:00
Christopher Brannon
bf4a4bacb0 staging: speakup: speakup_acntpc.c: style fixes
* Clean this file based on reports from checkpatch.pl.
* Eliminate the unused synth_readable macro.
* Convert function-like macros to inline functions.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-15 12:22:35 -07:00
Thomas Gleixner
40ffa93791 x86: Remove stale pmtimer_64.c
This file is unused since the apic unification in 2.6.29, but nobody
noticed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-10-15 21:18:59 +02:00
Sunil Mushran
d4396eafe4 ocfs2/cluster: Release debugfs file elapsed_time_in_ms
An earlier commit forgot to remove a debugfs file, elapsed_time_in_ms.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
2010-10-15 11:57:21 -07:00
Jeff Layton
2f4f26fcf3 cifs: eliminate cifs_posix_open_inode_helper
cifs: eliminate cifs_posix_open_inode_helper

This function is redundant. The only thing it does is set the canCache
flags, but those get set in cifs_new_fileinfo anyway.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-10-15 18:22:21 +00:00
Linus Torvalds
3e645d6b48 v4l1: fix 32-bit compat microcode loading translation
The compat code for the VIDIOCSMICROCODE ioctl is totally buggered.
It's only used by the VIDEO_STRADIS driver, and that one is scheduled to
staging and eventually removed unless somebody steps up to maintain it
(at which point it should use request_firmware() rather than some magic
ioctl).  So we'll get rid of it eventually.

But in the meantime, the compatibility ioctl code is broken, and this
tries to get it to at least limp along (even if Mauro suggested just
deleting it entirely, which may be the right thing to do - I don't think
the compatibility translation code has ever worked unless you were very
lucky).

Reported-by: Kees Cook <kees.cook@canonical.com>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 11:12:38 -07:00
Linus Torvalds
799c10559d De-pessimize rds_page_copy_user
Don't try to "optimize" rds_page_copy_user() by using kmap_atomic() and
the unsafe atomic user mode accessor functions.  It's actually slower
than the straightforward code on any reasonable modern CPU.

Back when the code was written (although probably not by the time it was
actually merged, though), 32-bit x86 may have been the dominant
architecture.  And there kmap_atomic() can be a lot faster than kmap()
(unless you have very good locality, in which case the virtual address
caching by kmap() can overcome all the downsides).

But these days, x86-64 may not be more populous, but it's getting there
(and if you care about performance, it's definitely already there -
you'd have upgraded your CPU's already in the last few years).  And on
x86-64, the non-kmap_atomic() version is faster, simply because the code
is simpler and doesn't have the "re-try page fault" case.

People with old hardware are not likely to care about RDS anyway, and
the optimization for the 32-bit case is simply buggy, since it doesn't
verify the user addresses properly.

Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-10-15 11:09:28 -07:00
Thomas Gleixner
940b3c7b19 x86: sfi: Make local functions static
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Len Brown <lenb@kernel.org>
2010-10-15 19:37:39 +02:00
Linus Torvalds
5a2b3ef455 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: sdio: fix SDIO suspend/resume regression
2010-10-15 10:18:36 -07:00
Ohad Ben-Cohen
1c8cf9c997 mmc: sdio: fix SDIO suspend/resume regression
Fix SDIO suspend/resume regression introduced by 4c2ef25fe0 "mmc: fix
all hangs related to mmc/sd card insert/removal during suspend/resume":

  PM: Syncing filesystems ... done.
  Freezing user space processes ... (elapsed 0.01 seconds) done.
  Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
  Suspending console(s) (use no_console_suspend to debug)
  pm_op(): platform_pm_suspend+0x0/0x5c returns -38
  PM: Device pxa2xx-mci.0 failed to suspend: error -38
  PM: Some devices failed to suspend

4c2ef25fe0 moved the card removal/insertion mechanism out of MMC's
suspend/resume path and into pm notifiers (mmc_pm_notify), and that
broke SDIO's expectation that mmc_suspend_host() will remove the card,
and squash the error, in case -ENOSYS is returned from the bus suspend
handler (mmc_sdio_suspend() in this case).

mmc_sdio_suspend() is using this whenever at least one of the card's SDIO
function drivers does not have suspend/resume handlers - in that case
it is agreed to force removal of the entire card.

This patch fixes this regression by trivially bringing back that part of
mmc_suspend_host(), which was removed by 4c2ef25fe0.

Reported-and-tested-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: <stable@kernel.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Chris Ball <cjb@laptop.org>
2010-10-15 12:54:55 -04:00
Linus Torvalds
c9192798b9 Merge branch 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  hrtimer: Preserve timer state in remove_hrtimer()
2010-10-15 09:50:03 -07:00
Linus Torvalds
1bbee7d616 Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Add Cando touch screen 15.6-inch product id
  HID: Add MULTI_INPUT quirk for turbox/mosart touchscreen
  HID: hidraw, fix a NULL pointer dereference in hidraw_write
  HID: hidraw, fix a NULL pointer dereference in hidraw_ioctl
2010-10-15 09:49:43 -07:00
Linus Torvalds
264780c290 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  ubd: fix incorrect sector handling during request restart
  ps3disk: passing wrong variable to bvec_kunmap_irq()
2010-10-15 09:49:16 -07:00
John Fastabend
7662ff46b7 ixgbe: DCB: remove DCB check config
Remove a DCB check config from DCB configuration we
continue to configure DCB even if it fails so don't
even bother to check.  Plus user space (lldpad) checks
this before programming the hw anyways.

Worse case is we program some values into the hw that
don't make total sense resulting in incorrect bandwidth
allocation.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-10-15 09:27:38 -07:00
Steven Rostedt
85caa993d7 ftrace: Use objtree for C version of recordmcount
The C version of recordmcount is compiled to a binary, which will
end up located in the objtree. If the kernel is built with O=path,
the srctree will not include the binary recordmcount caller.

Cc: Michal Marek <mmarek@suse.cz>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-15 12:09:25 -04:00
Paul Mundt
e5690e0dcf sh: clkfwk: Fix fault in frequency iterator.
When updating the iterator macro an old argument assignment was used on
the initial assignment causing a fault on the table rounding. Fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-16 00:51:05 +09:00
Steven Rostedt
4447586364 ftrace: Do not process kernel/trace/ftrace.o with C recordmcount program
The file kernel/trace/ftrace.c references the mcount() call to
convert the mcount() callers to nops. But because it references
mcount(), the mcount() address is placed in the relocation table.

The C version of recordmcount reads the relocation table of all
object files, and it will add all references to mcount to the
__mcount_loc table that is used to find the places that call mcount()
and change the call to a nop. When recordmcount finds the mcount reference
in kernel/trace/ftrace.o, it saves that location even though the code
is not a call, but references mcount as data.

On boot up, when all calls are converted to nops, the code has a safety
check to determine what op code it is actually replacing before it
replaces it. If that op code at the address does not match, then
a warning is printed and the function tracer is disabled.

The reference to mcount in ftrace.c, causes this warning to trigger,
since the reference is not a call to mcount(). The ftrace.c file is
not compiled with the -pg flag, so no calls to mcount() should be
expected.

This patch simply makes recordmcount.c skip the kernel/trace/ftrace.c
file. This was the same solution used by the perl version of
recordmcount.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: John Reiser <jreiser@bitwagon.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-10-15 11:49:47 -04:00
Suresh Jayaraman
6221ddd0f5 cifs: handle FindFirst failure gracefully
FindFirst failure due to permission errors or any other errors are silently
ignored by cifs_readdir(). This could cause problem to applications that depend
on the error to do further processing.

Reproducer:
  - mount a cifs share
  - mkdir tdir;touch tdir/1 tdir/2 tdir/3
  - chmod -x tdir
  - ls tdir

Currently, we start calling filldir() for '.' and '..' before we know we
whether FindFirst could succeed or not. If FindFirst fails later, there is no
way to notify VFS by setting buf.error and so VFS won't be able to catch this.
Fix this by moving the call to initiate_cifs_search() before we start doing
filldir().

This fixes https://bugzilla.samba.org/show_bug.cgi?id=7535

Reported-by: Tom Dexter <digitalaudiorock@gmail.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2010-10-15 15:19:55 +00:00
Nikolai Kondrashov
4ea6e4ffb4 HID: add absolute axis resolution calculation
Add absolute axis resolution calculation to the core HID layer, according to HID
specification v1.11 6.2.2.7 Global Items. Only exponent 1 length units for
X/Y/Z/RX/RY/RZ axis are supported for now.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-15 16:40:29 +02:00
FUJITA Tomonori
478971600e [SCSI] bsg: fix incorrect device_status value
bsg incorrectly returns sg's masked_status value for device_status.

[jejb: fix up expression logic]
Reported-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-10-15 10:18:48 -04:00
Arnd Bergmann
776c163b1b vfs: make no_llseek the default
All file operations now have an explicit .llseek
operation pointer, so we can change the default
action for future code.

This makes changes the default from default_llseek
to no_llseek, which always returns -ESPIPE if
a user tries to seek on a file without a .llseek
operation.

The name of the default_llseek function remains
unchanged, if anyone thinks we should change it,
please speak up.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
2010-10-15 15:53:46 +02:00
Arnd Bergmann
ab91261f5c vfs: don't use BKL in default_llseek
There are currently 191 users of default_llseek.
Nine of these are in device drivers that use the
big kernel lock. None of these ever touch
file->f_pos outside of llseek or file_pos_write.

Consequently, we never rely on the BKL
in the default_llseek function and can
replace that with i_mutex, which is also
used in generic_file_llseek.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2010-10-15 15:53:34 +02:00
Arnd Bergmann
6038f373a3 llseek: automatically add .llseek fop
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-15 15:53:27 +02:00
Martin K. Petersen
495d2b3883 block: Make the integrity mapped property a bio flag
Previously we tracked whether the integrity metadata had been remapped
using a request flag. This was fine for low-level retries. However, if
an I/O was redriven by upper layers we would end up remapping again,
causing the retry to fail.

Deprecate the REQ_INTEGRITY flag and introduce BIO_MAPPED_INTEGRITY
which enables filesystems to notify lower layers that the bio in
question has already been remapped.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-10-15 15:49:20 +02:00
Martin K. Petersen
e817bf3f68 block: Fix double free in blk_integrity_unregister
Commit 3839e4b introduced a kobject_put but failed to remove the
kmem_cache_free beneath it, leading to a double free.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-10-15 15:49:18 +02:00
Christoph Hellwig
46bf36ecec hfsplus: fix getxattr return value
We need to support -EOPNOTSUPP for attributes that are not supported to
match other filesystems and allow userspace to detect if Posix ACLs
are supported or not.  setxattr already gets this right.

Signed-off-by: Christoph Hellwig <hch@tuxera.com>
2010-10-15 05:45:00 -07:00
Wolfram Sang
a5360df941 pcmcia/yenta: guide users in case of problems with O2-bridges
Some cards need the speedups on, some need them off. As we can't detect
this reliably, at least give the users a hint how to tweak the system.

Reported-by: David Bluecame <david.bluecame@gmail.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-10-15 14:31:47 +02:00
Lars Ellenberg
5dbfe7aedf drbd: add race-breaker to drbd_go_diskless
This adds a necessary race breaker to these commits:
    drbd: fix for possible deadlock on IO error during resync
    drbd: drop wrong debug asserts, fix recently introduced race

What we do is get a refcount, check the state, then depending on the
state and the requested minimum disk state, either hold it (success),
or give it back immediately (failed "try lock").

Some code paths (flushing of drbd metadata) may still grab and hold a
refcount even if we are D_FAILED (application IO won't).
So even if we hit local_cnt == 0 once after being D_FAILED,
we still need to wait for that again after we changed to D_DISKLESS.
Once local_cnt reaches 0 while we are D_DISKLESS, we can be sure that
no one will look at the protected members anymore, so only then is it
safe to free them.

We cannot easily convert to standard locking primitives here, as we want
to be able to use it in atomic context (we always do a "try lock"),
as well as hold references for a "long time" (from IO submission to
completion callback).

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
2010-10-15 14:06:53 +02:00
Magnus Damm
c6c049ecbc ARM: mach-shmobile: add TMU platform data for sh7372
This patch adds support for the two first channels of
the TMU0 timer block on sh7372. One channel is used
for clock event, the other for clock source.

Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-15 20:16:45 +09:00
Guennadi Liakhovetski
630f2d445f fbdev: sh_mobile_hdmi: fix compilation without SOUND enabled
At least two more Kconfig options have to be selected to be able to compile
sh_mobile_hdmi.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:56:46 +01:00
Peter Hsiang
e65d255a5a ASoC: Add max98088 CODEC driver
This patch adds the MAX98088 CODEC driver.

Signed-off-by: Peter Hsiang <peter.hsiang@maxim-ic.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:56:44 +01:00
Tejun Heo
47526903fe ubd: fix incorrect sector handling during request restart
Commit f81f2f7c (ubd: drop unnecessary rq->sector manipulation)
dropped request->sector manipulation in preparation for global request
handling cleanup; unfortunately, it incorrectly assumed that the
updated sector wasn't being used.

ubd tries to issue as many requests as possible to io_thread.  When
issuing fails due to memory pressure or other reasons, the device is
put on the restart list and issuing stops.  On IO completion, devices
on the restart list are scanned and IO issuing is restarted.

ubd issues IOs sg-by-sg and issuing can be stopped in the middle of a
request, so each device on the restart queue needs to remember where
to restart in its current request.  ubd needs to keep track of the
issue position itself because,

* blk_rq_pos(req) is now updated by the block layer to keep track of
  _completion_ position.

* Multiple io_req's for the current request may be in flight, so it's
  difficult to tell where blk_rq_pos(req) currently is.

Add ubd->rq_pos to keep track of the issue position and use it to
correctly restart io_req issue.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Richard Weinberger <richard@nod.at>
Tested-by: Richard Weinberger <richard@nod.at>
Tested-by: Chris Frey <cdfrey@foursquare.net>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-10-15 12:56:21 +02:00
Mika Westerberg
d42a280dc7 ASoC: ep93xx: add Simplemachines Sim.One AC97 audio support
Add AC97 audio support for Simplemachines Sim.One board.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:54:54 +01:00
Mika Westerberg
534bc7fa3c ARM: ep93xx: add AC97 platform support
Add platform support for the EP93xx AC97 controller driver.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:54:53 +01:00
Mika Westerberg
aa7e1b84c6 ASoC: add ep93xx AC97 audio driver
Add support for AC97 controllers found in Cirrus Logic EP93xx family SoCs.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:54:52 +01:00
Kuninori Morimoto
a34712391a ASoC: ak4642: make sure name of register/value
This patch replace magic code with defined name,
and remove unnecessary settings which set default value

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:54:51 +01:00
Joe Perches
c14c05c19f ASoC: Remove unused vol field from WM8994 access mask table
Remove unused vol from struct access_mask

Reduces object size ~3kb.

$ size sound/soc/codecs/wm8994.o*
   text	   data	    bss	    dec	    hex	filename
  40727	   4384	   4480	  49591	   c1b7	sound/soc/codecs/wm8994.o.new
  43879	   4384	   4480	  52743	   ce07	sound/soc/codecs/wm8994.o.old

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-10-15 11:54:25 +01:00
Robert Richter
b47fad3bfb oprofile, x86: Add support for IBS periodic op counter extension
The count value for IBS op sampling has been extended by 7 bits. The
feature is reflected in bit 6 (OpCntExt) of the IBS capability
register (CPUID Fn8000_001B_EAX).

Signed-off-by: Robert Richter <robert.richter@amd.com>
2010-10-15 12:50:43 +02:00