Commit Graph

348050 Commits

Author SHA1 Message Date
Takashi Iwai
3bd7b644d0 ALSA: hda/realtek - Handle vmaster hook in the parser side
... so that the fixup just needs to set the hook function in
FIXUP_ACT_PROBE.  This will make easier to port for other codecs,
too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:35 +01:00
Takashi Iwai
20c18f562a ALSA: hda/realtek - Remove unused fields and macro definitions
Also arranged alc_spec definitions to optimize bit fields.
Use a bit field for spec->need_dac_fix, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:33 +01:00
Takashi Iwai
480967db6c ALSA: hda/realtek - Drop auto_mic_valid_imux flag
This flag is superfluous now and it's always as same as
spec->auto_mic.  Let's drop.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:32 +01:00
Takashi Iwai
37c0420765 ALSA: hda/realtek - Allow different pins for shared hp/mic vref check
Add a new field to indicate the possible pin NID for alternative vref
setup for the shared hp/mic.  Although 0x18 is valid for all Realtek
codecs, it'll be different on other vendor's codecs.

Also, drop the sanity check in update_shared_mic_hp() since the
reference pin is set explicitly in the caller side.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:30 +01:00
Takashi Iwai
df1d1fb09a ALSA: hda/realtek - Parse digital input path
This was the last forgotten path.  Now it's parsed via the same path
parser.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:28 +01:00
Takashi Iwai
965ccebccd ALSA: hda/realtek - Rename add_new_out_path() with add_new_nid_path()
Make the function more generic for both input and output directions,
and returns the assigned path pointer.  The argument order is changed
to follow the standard (from, to) way.

Now this new function is used for analog input and loopback path
parser codes, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:27 +01:00
Takashi Iwai
62343997e4 ALSA: hda/realtek - Remove superfluous input amp init
The amps will be initialized via activate_path(), thus it's
superfluous to set in alc_auto_init_analog_input().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:25 +01:00
Takashi Iwai
27d3153651 ALSA: hda/realtek - Clean up some spec fields
Remove some fields from struct alc_spec, and clean up the usage.
Namely,
- spec->input_mux becomes a single element, private_imux[] is removed
- spec->adc_nids becomes an array by itself, and private_adc_nids[]
  gets removed, too

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:23 +01:00
Takashi Iwai
666a70d42b ALSA: hda/realtek - Make input path parser more generic
Now we reached to the final big piece of parser rewrite: the input
paths.  While the old parser code assumes the more-or-less direct and
similar connections from input pin to ADC, the new code handles the
complete input paths.  The capture source is switched by simple calls
of activate_path() function.

The parsing of capture volume and capture switches is, however, not
fully generalized.  It assumes that amps are available in the vicinity
of ADCs (in three depth).  This isn't perfect but it should cover all
codecs I know of.

Also, this commit removes some NID mapping of capture-related controls
temporarily for simplicity.  It'll be restored in later commits.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:22 +01:00
Takashi Iwai
183a444a6d ALSA: hda/realtek - Don't change connection at path deactivation
The widget connection selection must be changed only when the path is
enabled.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:20 +01:00
Takashi Iwai
829f69ea59 ALSA: hda/realtek - Initialize loopback paths properly
Now we have a complete list of loopback paths, thus we can initialize
the paths more completely based on it, instead of assuming a direct
connection from pin to mixer.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:18 +01:00
Takashi Iwai
8dd4867858 ALSA: hda/realtek - Add boost volumes to path list
Don't forget to take boost volumes into account in the managed path
list.  Since it's an additional volume, we need to extend the ctls[]
array.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:17 +01:00
Takashi Iwai
3ebf1e940a ALSA: hda/realtek - Add missing initialization of multi-io routes
The paths used for multi-io haven't been initialized properly, so
far.  It's usually no big matter because the pins are set to input as
default, but it's still cleaner to initialize the paths properly.

Now with the path active/inactive check, we can do it easily.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:15 +01:00
Takashi Iwai
0250f7cbea ALSA: hda/realtek - Fix the initialization of pin amp-in
The pin widget has only a single amp value for the input even if it
has multiple "sources".  Handle the situation in activate_path().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:14 +01:00
Takashi Iwai
6518f7ac51 ALSA: hda/realtek - Rename get_out_path() to get_nid_path()
The function can be used not only for output paths but generically.
Also swap the argument order.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:12 +01:00
Takashi Iwai
fef7fbbc5d ALSA: hda/realtek - Use path-based parser for digital outputs
Similar like analog output paths, use the path list for parsing and
initializing digital outputs as well.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:10 +01:00
Takashi Iwai
c9967f1cba ALSA: hda/realtek - Consolidate to a single path list
We don't have to keep three individual path lists for input, output
and loopback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:09 +01:00
Takashi Iwai
9c64076e54 ALSA: hda/realtek - Consolidate is_reachable_path()
alc_auto_is_dac_reachable() can be replaced fully with
is_reachable_path().  The only difference is the order of arguments.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:07 +01:00
Takashi Iwai
130e5f0642 ALSA: hda/realtek - Add path active flag
... and rewrite the initialization of output paths as a generic
function that is applicable for both i/o directions.

The new flag, active, is introduced to each nid_path entry.  This
indicates whether the given path is active, and it's used for checking
whether a certain widget can be turned off or changed when a path is
no longer used or newly enabled.

It's still used only in the output paths.  More wider adaption for
input and loopback paths will be achieved in the later patch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:05 +01:00
Takashi Iwai
b8a47c79b2 ALSA: hda/realtek - Remove non-standard automute mode
We are using only AUTOMUTE_MODE_PIN in patch_realtek.c and all others
have been already dropped.  Let's remove the old superfluous codes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:04 +01:00
Takashi Iwai
280e57d544 ALSA: hda - Introduce snd_hda_codec_amp_init*()
The new function snd_hda_codec_amp_init() (and the stereo variant)
initializes the amp value only once at the first access.  If the amp
was already initialized or updated, this won't do anything more.

It's useful for initializing the input amps that are in the part of
the path but never used.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:30:02 +01:00
Takashi Iwai
c370dd6e9f ALSA: hda - Introduce cache & flush cmd / amp writes
For optimizing the verb executions, a new mechanism to cache the verbs
and amp update commands is introduced.  With the new "write to cache
and flush" way, you can reduce the same verbs that have been written
multiple times.

When codec->cached_write flag is set, the further
snd_hda_codec_write_cache() and snd_hda_codec_amp_stereo() calls will
be performed only on the command or amp cache table, but not sent to
the hardware yet.  Once after you call all commands and update amps,
call snd_hda_codec_resume_amp() and snd_hda_codec_resume_cache().
Then all cached writes and amp updates will be written to the
hardware, and the dirty flags are cleared.

In this implementation, the existing cache table is reused, so
actually no big code change is seen here.  Each cache entry has a new
dirty flag now (so the cache key is now reduced to 31bit).

As a good side-effect by this change, snd_hda_codec_resume_*() will no
longer execute verbs that have been already issued during the resume
phase by checking the dirty flags.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-12 08:29:17 +01:00
Takashi Iwai
8092e60654 ALSA: hda - Remove snd_hda_codec_amp_update() call from patch_*.c
It's used only in one place in patch_analog.c, and it can be replaced
with others better.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:30 +01:00
Takashi Iwai
9366ede7fd ALSA: hda/realtek - Fix initialization of input amps in output paths
When initializing the output paths, we assumed the input amps have
almost two inputs blindly.  It's not only generic but even incorrect
for some codecs like ALC268 & co.  Also, the same assumption (two
sources) exists for the bind input-amp controls.

This patch changes the codes in these places to handle the input
connections in a more generic way.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:30 +01:00
Takashi Iwai
bd32f782b9 ALSA: hda/realtek - Check amp capabilities of aa-mixer widget
For handling the analog-loopback paths more generically, check the amp
capabilities of the aa-mixer widget, and create only the appropriate
mixer elements.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:29 +01:00
Takashi Iwai
c2fd19c2fc ALSA: hda/realtek - Parse analog loopback paths more generically
Improve the parser of analog loopback paths and handle in a more
generic way.  The following changes are included in this patch:

- Instead of assuming direct connections between pins and
  the mixer widget, track the whole path between them.  This fixes
  some missing connections like ALC660.

- Introduce the path list for loopback paths like input and output
  path lists.  Currently it's not used for any real purposes, yet.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:29 +01:00
Takashi Iwai
36f0fd540e ALSA: hda/realtek - Parse input paths
Just like the output paths, parse the whole paths for inputs as well
and store in a path list.  For that purpose, rewrite the output parser
code to be generically usable.

The input path list is not referred at all in this patch.  It'll be
used to replace the fixed adc/capsrc array in later patches for more
flexible input path selections.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:28 +01:00
Takashi Iwai
95e960cece ALSA: hda/realtek - Make path->idx[] and path->multi[] consistent
So far, idx[i] and multi[i] indicate the attribute of the widget
path[i - 1].  This was just for simplifying the code in
__parse_output_path(), but this is rather confusing for later use.
It's more natural if both idx[i] and multi[i] point to the same widget
of path[i].  This patch changes to that way.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:28 +01:00
Takashi Iwai
78e635c93b ALSA: hda/realtek - Simplify the output volume initialization
Simplify the output path initialization using the existing path
information instead of assuming the topology specific to Realtek
codecs.  This is also implicitly a fix for some amp values on output
pins where the old parser missed (e.g. ALC260 output pins).

The same function alc_auto_set_output_and_unmute() can be used now for
the multi-io activation, since the output selection means nothing but
activating the given output path.

And, finally at this stage, we can get rid of alc_go_down_to_selector()
and other functions that are codec really specifically to Realtek
codecs.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:28 +01:00
Takashi Iwai
792cf2fa2e ALSA: hda/realtek - Reduce vol/mute ctl lookups at parsing codec
So far, Realtek codec driver evaluates the NIDs for volume and mute
controls twice, once while parsing the DACs and evaluating the
assignment, and another while creating the mixer elements.  This is
utterly redundant and even fragile, as it's assuming that the ctl
element evaluation is identical between both parsing DACs and creating
mixer elements.

This patch simplifies the code flow by doing the volume / mute
controls evaluation only once while parsing the DACs.  The patch ended
up in larger changes than expected because of some cleanups became
mandatory.

As a gratis bonus, this patch also fixes some cases where the stereo
channels are used wrongly for mono amps.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:27 +01:00
Takashi Iwai
2f179721c4 ALSA: hda - Fix mono amp values in proc output
The mono widget is always connected to the left channel, thus the left
channel amp value also should be referred for mono widgets instead of
the right channel.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:27 +01:00
Takashi Iwai
ba8111276f ALSA: hda/realtek - Manage mixer controls in out_path list
As we parse the output paths more precisely now, we can use this path
list for parsing the widgets for volume and mute mixer controls.
The spec->vol_ctls[] and sw_ctls[] bitmasks are replaced with the
ctls[] in each output path instance.

Interestingly, this move alone automagically fixes some bugs that the
conflicting volume or mute NIDs weren't properly detected.
Also, by parsing the whole path, there are more chances to get a free
widget for volume/mute controls.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:27 +01:00
Takashi Iwai
30dcd3b404 ALSA: hda/realtek - Add output path parser
Add the output path parser to Realtek codec driver as we already have
in patch_via.c.  The nid_path struct represents the complete output
path from a DAC to a pin.  The alc_spec contains an array of these
paths, and a new path is added at each time when a new DAC is
assigned.

So far, this path list is used only in limited codes: namely in this
patch, only alc_is_dac_already_used() checks the list instead of dac
arrays in all possible outputs.  In the later development, the path
list will be referred from more places, such as the mixer control
assignment / check, the mute/unmute of active routes, etc.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:26 +01:00
Takashi Iwai
463419de86 ALSA: hda/realtek - List up all available DACs
In the probing phase, create a list of all available DACs in the codec
and use it for checking the single DAC connections.
This list will be used in more other places in the later commits, too.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:26 +01:00
Takashi Iwai
6a84c305f0 ALSA: hda/realtek - Simplify alc_auto_is_dac_reachable()
Use the helper function snd_hda_get_conn_index() instead of open
codes.  This also improves the detection of some routes to DAC on
ALC260 (although the difference doesn't influence on the end
results of the mapping).

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:34:26 +01:00
Kailang Yang
065380f088 ALSA: hda - Add support of new codec ALC284
Added the support for a new codec ALC284, which is compatible with
ALC269.  Also add more codec variants to handle the SSID check
properly.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:27:46 +01:00
Sachin Kamat
e8e7da23c9 ALSA: usb-audio: Make ebox44_table static
Fixes the following sparse warning:
sound/usb/mixer_quirks.c:1209:23: warning:
symbol 'ebox44_table' was not declared. Should it be static?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-10 10:22:25 +01:00
Andre Schramm
56bde0f328 ALSA: hdspm - Fix wordclock status on AES32
Use correct bitmask for AES32 cards to determine wordclock lock state,
add missing bitmask for sync check and make output of the corresponding
control and /proc coherent.

Signed-off-by: Andre Schramm <andre.schramm@iosono-sound.com>
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-09 16:59:24 +01:00
David Henningsson
7ed4165e2d Revert "ALSA: hda - Shut up pins at power-saving mode with Conexnat codecs"
This reverts commit 697c373e34.

The original patch was meant to remove clicking, but in fact caused even
more clicking instead.

Thanks to c4pp4 for doing most of the work with this bug.

BugLink: https://bugs.launchpad.net/bugs/886975
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-09 11:03:38 +01:00
Takashi Iwai
d7dab4dbbb ALSA: hda - Disable runtime D3 for Intel CPT & co
We've got a few bug reports that the runtime D3 results in the dead
HD-audio controller.  It seems that the problem is in a deeper level
than the sound driver itself, so as a temporal solution, disable the
feature for these controllers again.

Reported-and-tested-by: Vincent Blut <vincent.debian@free.fr>
Reported-and-tested-by: Maurizio Avogadro <mavoga@gmail.com>
Cc: <stable@vger.kernel.org> [v3.7]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-09 11:00:08 +01:00
David Henningsson
6d3cd5d444 ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
The mute LED is in this case connected to the Mic1 VREF.

The machine also exposes the following string in BIOS:
"HP_Mute_LED_0_A", so if more machines are coming, it probably
makes sense to try to do something more generic, like for the
IDT codec.

Cc: stable@vger.kernel.org
BugLink: https://bugs.launchpad.net/bugs/1096789
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-07 17:29:55 +01:00
Nickolai Zeldovich
61ed1dca16 ALSA: au88x0: fix incorrect left shift
vortex_wt_setdsout performs bit-negation on the bit position (wt&0x1f)
rather than on the resulting bitmask.  This code is never actually
invoked (vortex_wt_setdsout is always called with en=1), so this does
not currently cause any problem, and this patch is simply cleanup.

Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-07 09:33:56 +01:00
Asim Kadav
dc30a43690 sound: oss/pas2: Fix possible access out of array
Added a fix for hardware dependence bug where a sound card failure
should not result in reading beyond array memory index.

Signed-off-by: Asim Kadav <kadav@cs.wisc.edu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-04 10:38:27 +01:00
Damien Zammit
b7b435e81b ALSA: usb-audio: Fix kernel panic of Digidesign Mbox2 quirk
This patch is based on 3.8-rc1. It fixes two things:
1) A kernel panic caused by incorrect allocation of a u8 variable
   "bootresponse".
2) A noisy dmesg (urb status -32) caused by broken pipe to an
   invalid midi endpoint.

It is also a little cleaner because there is no need for a new
QUIRK_MIDI type as suggested by kernel developers, since the device
follows exactly the MIDIMAN protocol.

Signed-off-by: Damien Zammit <damien@zamaudio.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-04 09:53:17 +01:00
Alexander Schremmer
8f7f3ab15e ALSA: usb-audio: Add support for Creative BT-D1 via usb sound quirks
Support the Creative BT-D1 Bluetooth USB audio device. Before this
patch, Linux had trouble finding the correct USB descriptors and bailed
out with these messages:

 no or invalid class specific endpoint descriptor

Now it still prints these messages on hotplug:

 snd-usb-audio: probe of ...:1.0 failed with error -5
 snd-usb-audio: probe of ...:1.2 failed with error -5
 snd-usb-audio: probe of ...:1.3 failed with error -5

But the device works correctly, including the HID support.

The patch is diff'ed against 3.8-rc1 but should apply to older kernels
as well.

Signed-off-by: Alexander Schremmer <alex@alexanderweb.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-03 14:26:48 +01:00
David Henningsson
c86c2d440c ALSA: hda - Switch "On" and "Off" for "Mute-LED Mode" kcontrol
The vmaster hook sends 1 for enabled/unmuted and 0 for disabled/muted,
but "Mute-LED Mode" being "On" refers to the LED being on, not the
volume being on.
Therefore "On" and "Off" should be switched.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-01-03 14:22:34 +01:00
Linus Torvalds
a49f0d1ea3 Linux 3.8-rc1 2012-12-21 17:19:00 -08:00
Linus Torvalds
4fe19a136a Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 "This includes some fixes and code improvements (like
  clk_prepare_enable and clk_disable_unprepare), conversion from the
  omap_wdt and twl4030_wdt drivers to the watchdog framework, addition
  of the SB8x0 chipset support and the DA9055 Watchdog driver and some
  OF support for the davinci_wdt driver."

* git://www.linux-watchdog.org/linux-watchdog: (22 commits)
  watchdog: mei: avoid oops in watchdog unregister code path
  watchdog: Orion: Fix possible null-deference in orion_wdt_probe
  watchdog: sp5100_tco: Add SB8x0 chipset support
  watchdog: davinci_wdt: add OF support
  watchdog: da9052: Fix invalid free of devm_ allocated data
  watchdog: twl4030_wdt: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER
  watchdog: remove depends on CONFIG_EXPERIMENTAL
  watchdog: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
  watchdog: DA9055 Watchdog driver
  watchdog: omap_wdt: eliminate goto
  watchdog: omap_wdt: delete redundant platform_set_drvdata() calls
  watchdog: omap_wdt: convert to devm_ functions
  watchdog: omap_wdt: convert to new watchdog core
  watchdog: WatchDog Timer Driver Core: fix comment
  watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepare
  watchdog: imx2_wdt: Select the driver via ARCH_MXC
  watchdog: cpu5wdt.c: add missing del_timer call
  watchdog: hpwdt.c: Increase version string
  watchdog: Convert twl4030_wdt to watchdog core
  davinci_wdt: preparation for switch to common clock framework
  ...
2012-12-21 17:10:29 -08:00
Linus Torvalds
769cb858c2 Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fixes from Steve French:
 "Misc small cifs fixes"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: eliminate cifsERROR variable
  cifs: don't compare uniqueids in cifs_prime_dcache unless server inode numbers are in use
  cifs: fix double-free of "string" in cifs_parse_mount_options
2012-12-21 17:09:07 -08:00
Linus Torvalds
b49249d103 Miscellaneous device-mapper fixes, cleanups and performance improvements.
Of particular note:
 - Disable broken WRITE SAME support in all targets except linear and striped.
   Use it when kcopyd is zeroing blocks.
 - Remove several mempools from targets by moving the data into the bio's new
   front_pad area(which dm calls 'per_bio_data').
 - Fix a race in thin provisioning if discards are misused.
 - Prevent userspace from interfering with the ioctl parameters and
   use kmalloc for the data buffer if it's small instead of vmalloc.
 - Throttle some annoying error messages when I/O fails.
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Merge tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm

Pull dm update from Alasdair G Kergon:
 "Miscellaneous device-mapper fixes, cleanups and performance
  improvements.

  Of particular note:
   - Disable broken WRITE SAME support in all targets except linear and
     striped.  Use it when kcopyd is zeroing blocks.
   - Remove several mempools from targets by moving the data into the
     bio's new front_pad area(which dm calls 'per_bio_data').
   - Fix a race in thin provisioning if discards are misused.
   - Prevent userspace from interfering with the ioctl parameters and
     use kmalloc for the data buffer if it's small instead of vmalloc.
   - Throttle some annoying error messages when I/O fails."

* tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (36 commits)
  dm stripe: add WRITE SAME support
  dm: remove map_info
  dm snapshot: do not use map_context
  dm thin: dont use map_context
  dm raid1: dont use map_context
  dm flakey: dont use map_context
  dm raid1: rename read_record to bio_record
  dm: move target request nr to dm_target_io
  dm snapshot: use per_bio_data
  dm verity: use per_bio_data
  dm raid1: use per_bio_data
  dm: introduce per_bio_data
  dm kcopyd: add WRITE SAME support to dm_kcopyd_zero
  dm linear: add WRITE SAME support
  dm: add WRITE SAME support
  dm: prepare to support WRITE SAME
  dm ioctl: use kmalloc if possible
  dm ioctl: remove PF_MEMALLOC
  dm persistent data: improve improve space map block alloc failure message
  dm thin: use DMERR_LIMIT for errors
  ...
2012-12-21 17:08:06 -08:00