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Sjoerd Simons [Tue, 24 May 2011 15:22:03 +0000 (12:22 -0300)]
[media] uvcvideo: Remove buffers from the queues when freeing
When freeing memory for the video buffers also remove them from the
irq & main queues.
This fixes an oops when doing the following:
open ("/dev/video", ..)
VIDIOC_REQBUFS
VIDIOC_QBUF
VIDIOC_REQBUFS
close ()
As the second VIDIOC_REQBUFS will cause the list entries of the buffers
to be cleared while they still hang around on the main and irc queues
Signed-off-by: Sjoerd Simons <sjoerd.simons@collabora.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Tue, 28 Jun 2011 21:17:48 +0000 (18:17 -0300)]
[media] uvcvideo: Ignore entities for terminals with no supported format
If a streaming interface has no supported format, the driver won't
create a video device for the associated terminal. Fix an oops by
ignoring that terminal when creating links between entities.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Wed, 15 Jun 2011 08:20:34 +0000 (05:20 -0300)]
[media] v4l: Don't access media entity after is has been destroyed
Entities associated with video device nodes are unregistered in
video_unregister_device(). This destroys the entity even though it can
still be accessed through open video device nodes.
Move the media_device_unregister_entity() call from
video_unregister_device() to v4l2_device_release() to ensure that the
entity isn't unregistered until the last reference to the video device
is released.
Also remove the media_entity_get()/put() calls from v4l2-dev.c. Those
functions were designed for subdevs, to avoid a parent module from being
removed while still accessible through board code. They're not currently
needed for video device nodes, and will oops when a hotpluggable device
is disconnected during streaming, as media_entity_put() called in
v4l2_device_release() tries to access entity->parent->dev->driver which
is set to NULL when the device is disconnected.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ohad Ben-Cohen [Wed, 1 Jun 2011 16:39:46 +0000 (13:39 -0300)]
[media] media: omap3isp: fix a potential NULL deref
Fix a potential NULL pointer dereference by skipping registration of
external entities in case none are provided.
This is useful at least when testing mere memory-to-memory scenarios.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Marek Szyprowski [Tue, 28 Jun 2011 11:29:02 +0000 (08:29 -0300)]
[media] media: vb2: fix allocation failure check
__vb2_queue_alloc function returns the number of successfully allocated
buffers. There is no point in checking if the returned value is negative.
If this function returns 0, videobuf2 should just return -ENOMEM to
userspace, because no driver can work without memory buffers.
Reported-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Marek Szyprowski [Fri, 10 Jun 2011 11:58:42 +0000 (08:58 -0300)]
[media] media: vb2: reset queued_count value during queue reinitialization
queued_count variable was left untouched during the queue reinitialization
in __vb2_queue_cancel, what might lead to mismatch between the real number
of queued buffers and queued_count variable.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Marek Szyprowski [Wed, 8 Jun 2011 09:15:05 +0000 (06:15 -0300)]
[media] Revert "[media] v4l2: vb2: one more fix for REQBUFS()"
This reverts commit
31901a078af29c33c736dcbf815656920e904632.
Queue should be reinitialized on each REQBUFS() call even if the memory
access method and buffer count have not been changed. The user might have
changed the format and if we go the short path introduced in that commit,
the memory buffer will not be reallocated to fit with new format.
The previous patch was just over-engineered optimization, which just
introduced a bug to videobuf2.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
CC: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Marek Szyprowski [Wed, 1 Jun 2011 15:57:37 +0000 (12:57 -0300)]
[media] media: vb2: add __GFP_NOWARN to dma-sg allocator
Add __GFP_NOWARN parameter to videobuf2 dma-sg allocator to prevent
kernel warning and stack dump if there is not enough memory available.
Videobuf2 and drivers should correctly handle no memory case, so there
is no need for stack dump and extensive log.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Hans de Goede [Mon, 6 Jun 2011 17:43:39 +0000 (14:43 -0300)]
[media] pwc: better usb disconnect handling
Unplugging a pwc cam while an app has the /dev/video# node open leads
to an oops in pwc_video_close when the app closes the node, because
the disconnect handler has free-ed the pdev struct pwc_video_close
tries to use. Instead of adding some sort of bandaid for this.
fix it properly using the v4l2 core's new(ish) behavior of keeping the
v4l2_dev structure around until both unregister has been called, and
all file handles referring to it have been closed:
Embed the v4l2_dev structure in the pdev structure and define a v4l2 dev
release callback releasing the pdev structure (and thus also the embedded
v4l2 dev structure.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Marek Szyprowski [Thu, 2 Jun 2011 07:52:07 +0000 (04:52 -0300)]
[media] MAINTAINERS: Add videobuf2 maintainers
Add maintainers for the videobuf2 V4L2 driver framework.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
HeungJun, Kim [Tue, 7 Jun 2011 05:00:58 +0000 (02:00 -0300)]
[media] m5mols: Use proper email address format
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
HeungJun, Kim [Tue, 7 Jun 2011 04:59:44 +0000 (01:59 -0300)]
[media] m5mols: remove union in the m5mols_get_version(), and VERSION_SIZE
Remove union version in the m5mols_get_version(), and read version information
directly. Also remove VERSION_SIZE.
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
HeungJun, Kim [Tue, 31 May 2011 06:44:19 +0000 (03:44 -0300)]
[media] m5mols: add m5mols_read_u8/u16/u32() according to I2C byte width
For now, the m5mols_read() share in case of I2C packet 1, 2, 4 byte(s) width.
So, this commit adds 3 functions - m5mols_read_u8/u16/u32() according to byte
width of I2C packet. And, the u32 variables in spite of u8 or u16 for fitting
to m5mols_read() having no choice, is replaced to have original byte width
like u8, u16, u32 as same reason.
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
HeungJun, Kim [Tue, 31 May 2011 05:27:53 +0000 (02:27 -0300)]
[media] m5mols: Fix capture image size register definition
The main capture and the thumbnail image size registers were
erroneously defined to have 1 byte width, resulting in wrong
reported image size. Fix this by changing the registers width
to correct value.
Reported-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: HeungJun, Kim <riverful.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Thu, 28 Apr 2011 12:06:19 +0000 (09:06 -0300)]
[media] s5p-fimc: Update copyright notices
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Fri, 20 May 2011 17:02:11 +0000 (14:02 -0300)]
[media] s5p-fimc: Use pix_mp for the color format lookup
With multi-planar formats fmt.pix_mp member of struct v4l2_format
should be used rather than fmt.pix. Fix find_fmt() function to do
the right thing.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Mon, 23 May 2011 12:15:17 +0000 (09:15 -0300)]
[media] s5p-fimc: Remove empty buf_init operation
The buf_init buffer queue operation is optional and
buffer_init() does nothing, remove it.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Mon, 23 May 2011 12:15:05 +0000 (09:15 -0300)]
[media] s5p-fimc: Fix wrong buffer size in queue_setup
Avoid dereferencing of NULL f->fmt. Correct size of the allocated
buffer in case the crop rectangle is smaller than the bounds
rectangle (configured with S_FMT). Also remove redundant check
for *num_buffer == 0 as this case is handled in videobuf2.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Fri, 20 May 2011 09:14:59 +0000 (06:14 -0300)]
[media] s5p-fimc: Fix data structures documentation and cleanup debug trace
Correct inconsistencies in data structures' documentation.
Remove meaningless debug traces.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Wed, 18 May 2011 17:14:56 +0000 (14:14 -0300)]
[media] s5p-fimc: Fix V4L2_PIX_FMT_RGB565X description
Remove V4L2_MBUS_FMT_RGB565_2X8_BE media code entry as
camera interface supports only packed YUYV formats.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sylwester Nawrocki [Thu, 2 Jun 2011 09:18:34 +0000 (06:18 -0300)]
[media] s5p-fimc: Fix possible memory leak during capture devnode registration
Add missing kfree on the error path.
Reported-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Sat, 4 Jun 2011 17:14:41 +0000 (14:14 -0300)]
[media] imon: fix initial panel key repeat suppression
As pointed out on the lirc list by Andreas Dick, initial panel key
repeat suppression wasn't working, as we had no timevals accumulated
until after the first repeat. Also add a missing locking call.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Sat, 4 Jun 2011 17:00:54 +0000 (14:00 -0300)]
[media] imon: support for 0x46 0xffdc imon vfd
Courtesy of information from Andreas Dick on the lirc list.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Tue, 24 May 2011 19:44:54 +0000 (16:44 -0300)]
[media] mceusb: plug memory leak on data transmit
Hans Petter Selasky pointed out to me that we're leaking urbs when
mce_async_out is called. Its used both for configuring the hardware and
for transmitting IR data. In the tx case, mce_request_packet actually
allocates both a urb and the transfer buffer, neither of which was being
torn down. Do that in the tx callback.
CC: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Tue, 24 May 2011 17:19:23 +0000 (14:19 -0300)]
[media] nuvoton-cir: in_use isn't actually in use, remove it
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Fri, 27 May 2011 20:14:51 +0000 (17:14 -0300)]
[media] fintek-cir: make suspend with active IR more reliable
There was a missing lock in fintek_suspend. Without the lock, its
possible the system will be in the middle of receiving IR (draining the
RX buffer) when we try to disable CIR interrupts.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Fri, 27 May 2011 19:56:50 +0000 (16:56 -0300)]
[media] lirc_dev: store cdev in irctl, up maxdevs
Store the cdev pointer in struct irctl, allocated dynamically as needed,
rather than having a static array. At the same time, recycle some of the
saved memory to nudge the maximum number of lirc devices supported up a
ways -- its not that uncommon these days, now that we have the rc-core
lirc bridge driver, to see a system with at least 4 raw IR receivers.
(consider a mythtv backend with several video capture devices and the
possible need for IR transmit hardware).
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Fri, 27 May 2011 18:46:19 +0000 (15:46 -0300)]
[media] [staging] lirc_sir: fix unused-but-set warnings
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Fri, 27 May 2011 18:37:23 +0000 (15:37 -0300)]
[media] [staging] lirc_imon: fix unused-but-set warnings
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Thu, 26 May 2011 17:23:18 +0000 (14:23 -0300)]
[media] mceusb: mce_sync_in is brain-dead
Aside from the initial "hey, lets make sure we've flushed any
pre-existing data on the device" call to mce_sync_in, every other one of
the calls was entirely superfluous. Ergo, remove them all, and rename
the one and only (questionably) useful one to reflect what it really
does. Verified on both gen2 and gen3 hardware to make zero difference.
Well, except that you no longer get a bunch of urb submit failures from
the unneeded mce_sync_in calls. Oh. And move that flush to a point
*after* we've wired up the inbound urb, or it won't do squat. I have
half a mind to just remove it entirely, but someone thought it was
necessary at some point, and it doesn't seem to hurt, so lets leave it
for the time being.
This excercise took place due to insightful questions asked by Hans
Petter Selasky, about the possible reuse of the inbound urb before it
was actually availble by mce_sync_in, so thanks to him for motivating
this cleanup.
Reported-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Thu, 26 May 2011 19:03:17 +0000 (16:03 -0300)]
[media] mceusb: support I-O Data GV-MC7/RCKIT
There's an SMK-device-id remote kit from I-O Data avaiable primarily in
Japan, which appears to have no tx hardware, but has rx functionality
that works with the mceusb driver by simply adding its device ID.
Reported-by: Jeremy Kwok <jeremykwok@desu.ca>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jarod Wilson [Thu, 26 May 2011 18:51:11 +0000 (15:51 -0300)]
[media] mceusb: add and use mce_dbg printk macro
Using dev_dbg is more complexity than many users are able to deal with.
Make it easier to get debug spew feedback from them by adding an mce_dbg
printk macro that spews using dev_info when debug=1 is set for the
mceusb module.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Wed, 1 Jun 2011 18:03:56 +0000 (15:03 -0300)]
[media] soc_camera: preserve const attribute
drivers/media/video/soc_camera.c: In function ‘soc_camera_video_start’:
drivers/media/video/soc_camera.c:1515: warning: initialization discards qualifiers from pointer target type
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Mauro Carvalho Chehab [Wed, 1 Jun 2011 17:44:41 +0000 (14:44 -0300)]
[media] uvc_entity: initialize return value
drivers/media/video/uvc/uvc_entity.c: In function ‘uvc_mc_register_entities’:
drivers/media/video/uvc/uvc_entity.c:33: warning: ‘ret’ may be used uninitialized in this function
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Mon, 30 May 2011 18:45:47 +0000 (15:45 -0300)]
[media] media: Fix media device minor registration
The find_next_zero_bit() is called with the from and to arguments in the
wrong order. This results in the function always returning 0, and all
media devices being registered with minor 0. Furthermore, mdev->minor is
then used before being assigned with the find_next_zero_bit() return
value. This really makes sure we'll always use minor 0.
Fix this and let the system support more than one media device.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Hans Petter Selasky [Mon, 23 May 2011 11:09:18 +0000 (08:09 -0300)]
[media] Make nchg variable signed because the code compares this variable against negative values
The sonixj driver compares the value for nchg with:
if (sd->nchg < -6 || sd->nchg >= 12) {
With u8, negative values won't work.
Signed-off-by: Hans Petter Selasky <hselasky@c2i.net>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Sanjeev Premi [Wed, 18 May 2011 16:06:51 +0000 (13:06 -0300)]
[media] omap3isp: fix compiler warning
This patch fixes this compiler warning:
drivers/media/video/omap3isp/isp.c: In function 'isp_isr_dbg':
drivers/media/video/omap3isp/isp.c:392:2: warning: zero-length
gnu_printf format string
Signed-off-by: Sanjeev Premi <premi@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Mon, 2 May 2011 19:21:03 +0000 (16:21 -0300)]
[media] v4l: Fix media_entity_to_video_device macro argument name
The name 'entity' is used twice in the macro body, once as the macro
argument, and once as a structure field name. This breaks compilation if
the macro is called with its argument not named 'entity'.
Fix this by renaming the macro argument '__e'. This should avoid
namespace clashes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ian Armstrong [Mon, 30 May 2011 00:33:17 +0000 (21:33 -0300)]
[media] ivtv: Internally separate encoder & decoder standard setting
Internally separates the setting of the broadcast standard for the encoder &
decoder. Externally there's no change in functionality.
[awalls@md.metrocast.net: Edited to fix a checkpatch gripe about multiple
assignment and to remove a now unused DEFINE_WAIT() due to this patch]
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ian Armstrong [Sun, 29 May 2011 01:15:41 +0000 (22:15 -0300)]
[media] ivtvfb: Add sanity check to ivtvfb_pan_display()
Add sanity check to ivtvfb_pan_display() to ensure only valid values are used
to pan the display. Invalid values are rejected with -EINVAL
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Laurent Pinchart [Wed, 25 May 2011 09:41:23 +0000 (06:41 -0300)]
[media] ivtvfb: use display information in info not in var for panning
We must not use any information in the passed var besides xoffset,
yoffset and vmode as otherwise applications might abuse it. Also use the
aligned fix.line_length and not the (possible) unaligned xres_virtual.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Ian Armstrong [Sun, 29 May 2011 23:09:24 +0000 (20:09 -0300)]
[media] ivtv: Make two ivtv_msleep_timeout calls uninterruptable
Two ivtv_msleep_timeout() calls are incorrectly flagged as interruptable. The
first is in the init sequence for a capture and is required for stable
hardware setup. The second is at the end of the capture and used to handle the
last data transfer. Failure to wait for this last transfer can result in stale
data being read at the start of the next capture.
Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Antti Palosaari [Tue, 24 May 2011 09:04:08 +0000 (06:04 -0300)]
[media] anysee: return EOPNOTSUPP for unsupported I2C messages
Check I2C messages and return error properly.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-François Moine [Mon, 23 May 2011 09:08:49 +0000 (06:08 -0300)]
[media] gspca - ov519: Set the default frame rate to 15 fps
The frame rate variable was not initialized, so, the lowest frame rate was
used for most webcams.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-François Moine [Mon, 23 May 2011 07:51:10 +0000 (04:51 -0300)]
[media] gspca - stv06xx: Set a lower default value of gain for hdcs sensors
Many users said that the default gain value (128) was giving white images.
The value which was in the original qc-usb driver (50) is better.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-François Moine [Sun, 22 May 2011 08:36:33 +0000 (05:36 -0300)]
[media] gspca: Remove coarse_expo_autogain.h
This file is replaced by autogain_functions.h.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-François Moine [Sun, 22 May 2011 08:05:11 +0000 (05:05 -0300)]
[media] gspca - ov519: Change the ovfx2 bulk transfer size
The 'normal' bulk transfer size did not work for 800x600.
By git commit
c42cedbb658b, this 'normal' size was used for 1600x1200 only.
It will now be used back again for all resolutions but 800x600.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jean-François Moine [Sun, 22 May 2011 07:56:32 +0000 (04:56 -0300)]
[media] gspca - ov519: Fix a regression for ovfx2 webcams
By git commit
c42cedbb658b, the bulk transfer size was changed to a lower
value for resolutions != 1600x1200, but the image extraction routine still
worked with the previous value, giving bad truncated images.
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Linus Torvalds [Mon, 30 May 2011 00:43:36 +0000 (17:43 -0700)]
Linux 3.0-rc1
.. except there are various scripts that really know that there are
three numbers, so it calls itself "3.0.0-rc1".
Hopefully by the time the final 3.0 is out, we'll have that extra zero
all figured out.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 29 May 2011 21:13:25 +0000 (14:13 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
eCryptfs: Remove ecryptfs_header_cache_2
eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose()
eCryptfs: Return useful code from contains_ecryptfs_marker
eCryptfs: Fix new inode race condition
eCryptfs: Cleanup inode initialization code
eCryptfs: Consolidate inode functions into inode.c
Linus Torvalds [Sun, 29 May 2011 21:10:13 +0000 (14:10 -0700)]
Merge branch 'pnfs-submit' of git://git.open-osd.org/linux-open-osd
* 'pnfs-submit' of git://git.open-osd.org/linux-open-osd: (32 commits)
pnfs-obj: pg_test check for max_io_size
NFSv4.1: define nfs_generic_pg_test
NFSv4.1: use pnfs_generic_pg_test directly by layout driver
NFSv4.1: change pg_test return type to bool
NFSv4.1: unify pnfs_pageio_init functions
pnfs-obj: objlayout_encode_layoutcommit implementation
pnfs: encode_layoutcommit
pnfs-obj: report errors and .encode_layoutreturn Implementation.
pnfs: encode_layoutreturn
pnfs: layoutret_on_setattr
pnfs: layoutreturn
pnfs-obj: osd raid engine read/write implementation
pnfs: support for non-rpc layout drivers
pnfs-obj: define per-inode private structure
pnfs: alloc and free layout_hdr layoutdriver methods
pnfs-obj: objio_osd device information retrieval and caching
pnfs-obj: decode layout, alloc/free lseg
pnfs-obj: pnfs_osd XDR client implementation
pnfs-obj: pnfs_osd XDR definitions
pnfs-obj: objlayoutdriver module skeleton
...
Linus Torvalds [Sun, 29 May 2011 21:06:42 +0000 (14:06 -0700)]
arm gpio drivers: make them 'depends on ARM'
We had a few drivers move from arch/arm into drivers/gpio, but they
don't actually compile without the ARM platform headers etc. As a
result they were messing up allyesconfig on x86.
Make them depend on ARM.
Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tyler Hicks [Tue, 24 May 2011 10:11:12 +0000 (05:11 -0500)]
eCryptfs: Remove ecryptfs_header_cache_2
Now that ecryptfs_lookup_interpose() is no longer using
ecryptfs_header_cache_2 to read in metadata, the kmem_cache can be
removed and the ecryptfs_header_cache_1 kmem_cache can be renamed to
ecryptfs_header_cache.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Tue, 24 May 2011 09:56:23 +0000 (04:56 -0500)]
eCryptfs: Cleanup and optimize ecryptfs_lookup_interpose()
ecryptfs_lookup_interpose() has turned into spaghetti code over the
years. This is an effort to clean it up.
- Shorten overly descriptive variable names such as ecryptfs_dentry
- Simplify gotos and error paths
- Create helper function for reading plaintext i_size from metadata
It also includes an optimization when reading i_size from the metadata.
A complete page-sized kmem_cache_alloc() was being done to read in 16
bytes of metadata. The buffer for that is now statically declared.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Mon, 2 May 2011 05:39:54 +0000 (00:39 -0500)]
eCryptfs: Return useful code from contains_ecryptfs_marker
Instead of having the calling functions translate the true/false return
code to either 0 or -EINVAL, have contains_ecryptfs_marker() return 0 or
-EINVAL so that the calling functions can just reuse the return code.
Also, rename the function to ecryptfs_validate_marker() to avoid callers
mistakenly thinking that it returns true/false codes.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Tue, 24 May 2011 08:49:02 +0000 (03:49 -0500)]
eCryptfs: Fix new inode race condition
Only unlock and d_add() new inodes after the plaintext inode size has
been read from the lower filesystem. This fixes a race condition that
was sometimes seen during a multi-job kernel build in an eCryptfs mount.
https://bugzilla.kernel.org/show_bug.cgi?id=36002
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Reported-by: David <david@unsolicited.net>
Tested-by: David <david@unsolicited.net>
Linus Torvalds [Sun, 29 May 2011 18:44:33 +0000 (11:44 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (43 commits)
acer-wmi: support integer return type from WMI methods
msi-laptop: fix section mismatch in reference from the function load_scm_model_init
acer-wmi: support to set communication device state by new wmid method
acer-wmi: allow 64-bits return buffer from WMI methods
acer-wmi: check the existence of internal 3G device when set capability
platform/x86:delete two unused variables
support wlan hotkey on Acer Travelmate 5735Z
platform-x86: intel_mid_thermal: Fix memory leak
platform/x86: Fix Makefile for intel_mid_powerbtn
platform/x86: Simplify intel_mid_powerbtn
acer-wmi: Delete out-of-date documentation
acerhdf: Clean up includes
acerhdf: Drop pointless dependency on THERMAL_HWMON
acer-wmi: Update MAINTAINERS
wmi: Orphan ACPI-WMI driver
tc1100-wmi: Orphan driver
acer-wmi: does not allow negative number set to initial device state
platform/oaktrail: ACPI EC Extra driver for Oaktrail
thinkpad_acpi: Convert printks to pr_<level>
thinkpad_acpi: Correct !CONFIG_THINKPAD_ACPI_VIDEO warning
...
Linus Torvalds [Sun, 29 May 2011 18:32:28 +0000 (11:32 -0700)]
mm: Fix boot crash in mm_alloc()
Thomas Gleixner reports that we now have a boot crash triggered by
CONFIG_CPUMASK_OFFSTACK=y:
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<
c11ae035>] find_next_bit+0x55/0xb0
Call Trace:
[<
c11addda>] cpumask_any_but+0x2a/0x70
[<
c102396b>] flush_tlb_mm+0x2b/0x80
[<
c1022705>] pud_populate+0x35/0x50
[<
c10227ba>] pgd_alloc+0x9a/0xf0
[<
c103a3fc>] mm_init+0xec/0x120
[<
c103a7a3>] mm_alloc+0x53/0xd0
which was introduced by commit
de03c72cfce5 ("mm: convert
mm->cpu_vm_cpumask into cpumask_var_t"), and is due to wrong ordering of
mm_init() vs mm_init_cpumask
Thomas wrote a patch to just fix the ordering of initialization, but I
hate the new double allocation in the fork path, so I ended up instead
doing some more radical surgery to clean it all up.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 29 May 2011 18:30:20 +0000 (11:30 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] mm: fix mmu_gather rework
[S390] mm: fix storage key handling
Linus Torvalds [Sun, 29 May 2011 18:29:28 +0000 (11:29 -0700)]
Merge git://git./linux/kernel/git/cmetcalf/linux-tile
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
arch/tile: more /proc and /sys file support
Matthew Garrett [Sun, 29 May 2011 18:27:13 +0000 (14:27 -0400)]
Merge branch 'x86-platform-next' into x86-platform
Linus Torvalds [Sun, 29 May 2011 18:21:12 +0000 (11:21 -0700)]
Merge branch 'for-2.6.40' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.40' of git://linux-nfs.org/~bfields/linux: (22 commits)
nfsd: make local functions static
NFSD: Remove unused variable from nfsd4_decode_bind_conn_to_session()
NFSD: Check status from nfsd4_map_bcts_dir()
NFSD: Remove setting unused variable in nfsd_vfs_read()
nfsd41: error out on repeated RECLAIM_COMPLETE
nfsd41: compare request's opcnt with session's maxops at nfsd4_sequence
nfsd v4.1 lOCKT clientid field must be ignored
nfsd41: add flag checking for create_session
nfsd41: make sure nfs server process OPEN with EXCLUSIVE4_1 correctly
nfsd4: fix wrongsec handling for PUTFH + op cases
nfsd4: make fh_verify responsibility of nfsd_lookup_dentry caller
nfsd4: introduce OPDESC helper
nfsd4: allow fh_verify caller to skip pseudoflavor checks
nfsd: distinguish functions of NFSD_MAY_* flags
svcrpc: complete svsk processing on cb receive failure
svcrpc: take advantage of tcp autotuning
SUNRPC: Don't wait for full record to receive tcp data
svcrpc: copy cb reply instead of pages
svcrpc: close connection if client sends short packet
svcrpc: note network-order types in svc_process_calldir
...
Linus Torvalds [Sun, 29 May 2011 18:20:48 +0000 (11:20 -0700)]
Merge git://git./linux/kernel/git/agk/linux-2.6-dm
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
dm kcopyd: return client directly and not through a pointer
dm kcopyd: reserve fewer pages
dm io: use fixed initial mempool size
dm kcopyd: alloc pages from the main page allocator
dm kcopyd: add gfp parm to alloc_pl
dm kcopyd: remove superfluous page allocation spinlock
dm kcopyd: preallocate sub jobs to avoid deadlock
dm kcopyd: avoid pointless job splitting
dm mpath: do not fail paths after integrity errors
dm table: reject devices without request fns
dm table: allow targets to support discards internally
Linus Torvalds [Sun, 29 May 2011 18:20:02 +0000 (11:20 -0700)]
Merge branch 'nfs-for-2.6.40' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'nfs-for-2.6.40' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
SUNRPC: Support for RPC over AF_LOCAL transports
SUNRPC: Remove obsolete comment
SUNRPC: Use AF_LOCAL for rpcbind upcalls
SUNRPC: Clean up use of curly braces in switch cases
NFS: Revert NFSROOT default mount options
SUNRPC: Rename xs_encode_tcp_fragment_header()
nfs,rcu: convert call_rcu(nfs_free_delegation_callback) to kfree_rcu()
nfs41: Correct offset for LAYOUTCOMMIT
NFS: nfs_update_inode: print current and new inode size in debug output
NFSv4.1: Fix the handling of NFS4ERR_SEQ_MISORDERED errors
NFSv4: Handle expired stateids when the lease is still valid
SUNRPC: Deal with the lack of a SYN_SENT sk->sk_state_change callback...
Linus Torvalds [Sun, 29 May 2011 18:19:45 +0000 (11:19 -0700)]
Merge git://git./linux/kernel/git/pkl/squashfs-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
Squashfs: Fix sanity check patches on big-endian systems
Linus Torvalds [Sun, 29 May 2011 18:19:16 +0000 (11:19 -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:
ACPI EC: remove redundant code
ACPI: Add D3 cold state
ACPI: processor: fix processor_physically_present in UP kernel
ACPI: Split out custom_method functionality into an own driver
ACPI: Cleanup custom_method debug stuff
ACPI EC: enable MSI workaround for Quanta laptops
ACPICA: Update to version
20110413
ACPICA: Execute an orphan _REG method under the EC device
ACPICA: Move ACPI_NUM_PREDEFINED_REGIONS to a more appropriate place
ACPICA: Update internal address SpaceID for DataTable regions
ACPICA: Add more methods eligible for NULL package element removal
ACPICA: Split all internal Global Lock functions to new file - evglock
ACPI: EC: add another DMI check for ASUS hardware
ACPI EC: remove dead code
ACPICA: Fix code divergence of global lock handling
ACPICA: Use acpi_os_create_lock interface
ACPI: osl, add acpi_os_create_lock interface
ACPI:Fix goto flows in thermal-sys
Linus Torvalds [Sun, 29 May 2011 18:18:09 +0000 (11:18 -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:
x86 idle: deprecate mwait_idle() and "idle=mwait" cmdline param
x86 idle: deprecate "no-hlt" cmdline param
x86 idle APM: deprecate CONFIG_APM_CPU_IDLE
x86 idle floppy: deprecate disable_hlt()
x86 idle: EXPORT_SYMBOL(default_idle, pm_idle) only when APM demands it
x86 idle: clarify AMD erratum 400 workaround
idle governor: Avoid lock acquisition to read pm_qos before entering idle
cpuidle: menu: fixed wrapping timers at 4.294 seconds
Al Viro [Sun, 29 May 2011 12:46:08 +0000 (13:46 +0100)]
cifs/ubifs: Fix shrinker API change fallout
Commit
1495f230fa77 ("vmscan: change shrinker API by passing
shrink_control struct") changed the API of ->shrink(), but missed ubifs
and cifs instances.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Boaz Harrosh [Wed, 25 May 2011 18:25:29 +0000 (21:25 +0300)]
pnfs-obj: pg_test check for max_io_size
Implement pg_test vector to test for max IO sizes. We calculate
a max_io_size member only once, and cache it in lseg so to not
do so on every page insert.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[simplify logic]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Sun, 29 May 2011 08:45:39 +0000 (11:45 +0300)]
NFSv4.1: define nfs_generic_pg_test
By default, unless pnfs is used coalesce pages until pg_bsize
(rsize or wsize) is reached.
pnfs layout drivers define their own pg_test methods that use
pnfs_generic_pg_test and need to define their own I/O size
limits (e.g. based on the file stripe size).
[Move a check from nfs_pageio_do_add_request to nfs_generic_pg_test]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Wed, 25 May 2011 17:54:40 +0000 (20:54 +0300)]
NFSv4.1: use pnfs_generic_pg_test directly by layout driver
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Wed, 25 May 2011 18:03:56 +0000 (21:03 +0300)]
NFSv4.1: change pg_test return type to bool
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Wed, 25 May 2011 17:25:22 +0000 (20:25 +0300)]
NFSv4.1: unify pnfs_pageio_init functions
Use common code for pnfs_pageio_init_{read,write} and use
a common generic pg_test function.
Note that this function always assumes the the layout driver's
pg_test method is implemented.
[Fix BUG]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Sun, 22 May 2011 16:54:13 +0000 (19:54 +0300)]
pnfs-obj: objlayout_encode_layoutcommit implementation
* Define API for io-engines to report delta_space_used in IOs
* Encode the osd-layout specific information of the layoutcommit
XDR buffer.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:53:48 +0000 (19:53 +0300)]
pnfs: encode_layoutcommit
Add a layout driver method to encode the layout type specific
opaque part of layout commit in-line in the xdr stream.
Currently, the pnfs-objects layout driver uses it to encode metadata hints
to the MDS and the blocks layout driver to commit provisionally allocated
extents to the file.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Thu, 26 May 2011 18:49:46 +0000 (21:49 +0300)]
pnfs-obj: report errors and .encode_layoutreturn Implementation.
An io_state pre-allocates an error information structure for each
possible osd-device that might error during IO. When IO is done if all
was well the io_state is freed. (as today). If the I/O has ended with an
error, the io_state is queued on a per-layout err_list. When eventually
encode_layoutreturn() is called, each error is properly encoded on the
XDR buffer and only then the io_state is removed from err_list and
de-allocated.
It is up to the io_engine to fill in the segment that fault and the type
of osd_error that occurred. By calling objlayout_io_set_result() for
each failing device.
In objio_osd:
* Allocate io-error descriptors space as part of io_state
* Use generic objlayout error reporting at end of io.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Andy Adamson [Sun, 22 May 2011 16:53:10 +0000 (19:53 +0300)]
pnfs: encode_layoutreturn
Add a layout driver method to encode the layout type specific
opaque part of layout return in-line in the xdr stream.
Currently the pnfs-objects layout driver uses it to encode i/o error
information on LAYOUTRETURN.
Signed-off-by: Andy Adamson <andros@netapp.com>
[fixup layout header pointer for encode_layoutreturn]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Wed, 14 Jul 2010 19:43:57 +0000 (15:43 -0400)]
pnfs: layoutret_on_setattr
With the objects layout security model, we have object capabilities
that are associated with the layout and we anticipate that the server
will issue a cb_layoutrecall for any setattr that changes security
related attributes (user/group/mode/acl) or truncates the file.
Therefore, the layout is returned before issuing the setattr to avoid
the anticipated cb_layoutrecall.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:52:37 +0000 (19:52 +0300)]
pnfs: layoutreturn
NFSv4.1 LAYOUTRETURN implementation
Currently, does not support layout-type payload encoding.
Signed-off-by: Alexandros Batsakis <batsakis@netapp.com>
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Fred Isaman <iisaman@netapp.com>
Signed-off-by: Marc Eshel <eshel@almaden.ibm.com>
Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn>
[call pnfs_return_layout right before pnfs_destroy_layout]
[remove assert_spin_locked from pnfs_clear_lseg_list]
[remove wait parameter from the layoutreturn path.]
[remove return_type field from nfs4_layoutreturn_args]
[remove range from nfs4_layoutreturn_args]
[no need to send layoutcommit from _pnfs_return_layout]
[don't wait on sync layoutreturn]
[fix layout stateid in layoutreturn args]
[fixed NULL deref in _pnfs_return_layout]
[removed recaim member of nfs4_layoutreturn_args]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Sun, 22 May 2011 16:52:19 +0000 (19:52 +0300)]
pnfs-obj: osd raid engine read/write implementation
With the use of the in-kernel osd library. Implement read/write
of data from/to osd-objects according to information specified
in the objects-layout.
Support for stripping over mirrors with a received stripe_unit.
There are however a few constrains which are not supported:
1. Stripe Unit must be a multiple of PAGE_SIZE
2. stripe length (stripe_unit * number_of_stripes) can not be
bigger then 32bit.
Also support raid-groups and partial-layout. Partial-layout is
when not all the groups are received on the line, addressing
only a partial range of the file.
TODO:
Only raid0! raid 4/5/6 support will come at later stage
A none supported layout will send IO through the MDS
[Important fallout from the last rebase]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[gfp_flags]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:52:03 +0000 (19:52 +0300)]
pnfs: support for non-rpc layout drivers
Non-rpc layout driver such as for objects and blocks
implement their own I/O path and error handling logic.
Therefore bypass NFS-based error handling for these layout drivers.
[fix lseg ref-count bugs, and null de-refs]
[Fall out from: non-rpc layout drivers]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[get rid of PNFS_USE_RPC_CODE]
[get rid of __nfs4_write_done_cb]
[revert useless change in nfs4_write_done_cb]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:51:48 +0000 (19:51 +0300)]
pnfs-obj: define per-inode private structure
allocate and deallocate per-inode private pnfs_layout_hdr
in preparation for I/O implementation.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:51:33 +0000 (19:51 +0300)]
pnfs: alloc and free layout_hdr layoutdriver methods
[gfp_flags]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Thu, 26 May 2011 18:45:34 +0000 (21:45 +0300)]
pnfs-obj: objio_osd device information retrieval and caching
When a new layout is received in objio_alloc_lseg all device_ids
referenced are retrieved. The device information is queried for from MDS
and then the osd_device is looked-up from the osd-initiator library. The
devices are cached in a per-mount-point list, for later use. At unmount
all devices are "put" back to the library.
objlayout_get_deviceinfo(), objlayout_put_deviceinfo() middleware
API for retrieving device information given a device_id.
TODO: The device cache can get big. Cap its size. Keep an LRU and start
to return devices which were not used, when list gets to big, or
when new entries allocation fail.
[pnfs-obj: Bugs in new global-device-cache code]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[gfp_flags]
[use global device cache]
[use layout driver in global device cache]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Sun, 22 May 2011 16:50:20 +0000 (19:50 +0300)]
pnfs-obj: decode layout, alloc/free lseg
objlayout_alloc_lseg prepares an xdr_stream and calls the
raid engins objio_alloc_lseg() to allocate a private
pnfs_layout_segment.
objio_osd.c::objio_alloc_lseg() uses passed xdr_stream to
decode and store the layout_segment information in an
objio_segment struct, using the pnfs_osd_xdr.h API for
the actual parsing the layout xdr.
objlayout_free_lseg calls objio_free_lseg() to free the
allocated space.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[gfp_flags]
[removed "extern" from function definitions]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Boaz Harrosh [Sun, 22 May 2011 16:49:57 +0000 (19:49 +0300)]
pnfs-obj: pnfs_osd XDR client implementation
* Add the fs/nfs/objlayout/pnfs_osd_xdr_cli.c file, which will
include the XDR encode/decode implementations for the pNFS
client objlayout driver.
[Wrong type in comments]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:49:32 +0000 (19:49 +0300)]
pnfs-obj: pnfs_osd XDR definitions
* Add the pnfs_osd_xdr.h header
* defintions the pnfs_osd_layout structure including all it's
sub-types and constants.
* Declare the pnfs_osd_xdr_decode_layout API + all needed
inline helpers.
* Define the pnfs_osd_deviceaddr structure and all its subtypes and
constants.
* Declare API for decoding of a pnfs_osd_deviceaddr from XDR stream.
* Define the pnfs_osd_ioerr structure, its substructures and constants.
* Declare API for encoding of a pnfs_osd_ioerr into XDR stream.
* Define the pnfs_osd_layoutupdate structure and its substructures.
* Declare API for encoding of a pnfs_osd_layoutupdate into XDR stream.
[Remove server definitions]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:49:06 +0000 (19:49 +0300)]
pnfs-obj: objlayoutdriver module skeleton
* Define the PNFS_OBJLAYOUT Kconfig option in the nfs
master Kconfig file.
* Add the objlayout driver to the Kernel's Kbuild system.
* Add the fs/nfs/objlayout/Kbuild file for building the
objlayoutdriver.ko driver
* Define fs/nfs/objlayout/objio_osd.c, register the driver on module
initialization and unregister on exit.
[pnfs-obj: remove of CONFIG_PNFS fallout]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[added "unsure" clause]
[depend on NFS_V4_1]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
J. Bruce Fields [Sun, 22 May 2011 16:48:21 +0000 (19:48 +0300)]
pnfs: client stats
A pNFS client auto-negotiates a lot of features (minorversion level,
pNFS layout type, etc.). This is convenient, but makes certain kinds of
failures hard for a user to detect.
For example, if the client falls back on 4.0, or falls back to MDS IO
because the user didn't connect to the right iscsi disks before
mounting, the only symptoms may be reduced performance, which may not be
noticed till long after the actual failure, and may be difficult for a
user to diagnose.
However, such "failures" may also be perfectly normal in some cases, so
we don't want to spam the system logs with them.
One approach would be to put some more information into
/proc/self/mountstats.
Signed-off-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[pnfs: add commit client stats]
[fixup data types for "ret" variables in pnfs_try_to* inline funcs.]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[fix definition of show_pnfs for !CONFIG_PNFS]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[nfs41: Fix show_sessions in the not CONFIG_NFS_V4_1 case]
There is a build error when CONFIG_NFS_V4 is set but
CONFIG_NFS_V4_1 is *not* set. show_sessions() prototype
was unbalanced between the two cases.
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[pnfs: super.c remove CONFIG_PNFS]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:48:02 +0000 (19:48 +0300)]
pnfs: Use byte-range for cb_layoutrecall
Use recalled range to invalidate particular layout segments in the layout cache.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:47:46 +0000 (19:47 +0300)]
pnfs: align layoutget requests on page boundaries
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Sun, 22 May 2011 16:47:26 +0000 (19:47 +0300)]
pnfs: Use byte-range for layoutget
Add offset and count parameters to pnfs_update_layout and use them to get
the layout in the pageio path.
Order cache layout segments in the following order:
* offset (ascending)
* length (descending)
* iomode (RW before READ)
Test byte range against the layout segment in use in pnfs_{read,write}_pg_test
so not to coalesce pages not using the same layout segment.
[fix lseg ordering]
[clean up pnfs_find_lseg lseg arg]
[remove unnecessary FIXME]
[fix ordering in pnfs_insert_layout]
[clean up pnfs_insert_layout]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Thu, 19 May 2011 18:16:47 +0000 (14:16 -0400)]
SUNRPC: introduce xdr_init_decode_pages
Initialize xdr_stream and xdr_buf using an array of page pointers
and length of buffer.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Benny Halevy [Tue, 24 May 2011 15:04:02 +0000 (18:04 +0300)]
NFSv4.1: use layout driver in global device cache
pnfs deviceids are unique per server, per layout type.
struct nfs_client is currently used to distinguish deviceids from
different nfs servers, yet these may clash between different layout
types on the same server. Therefore, use the layout driver associated
with each deviceid at insertion time to look it up, unhash, or
delete it.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Marc Eshel [Sun, 22 May 2011 16:47:09 +0000 (19:47 +0300)]
pnfs: CB_NOTIFY_DEVICEID
Note: This functionlaity is incomplete as all layout segments referring to
the 'to be removed device id' need to be reaped, and all in flight I/O drained.
[use be32 res in nfs4_callback_devicenotify]
[use nfs_client to qualify deviceid for cb_notify_deviceid]
[use global deviceid cache for CB_NOTIFY_DEVICEID]
[refactor device cache _lookup_deviceid]
[refactor device cache _find_get_deviceid]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[Bug in new global-device-cache code]
[layout_driver MUST set free_deviceid_node if using dev-cache]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Tyler Hicks [Tue, 24 May 2011 07:16:51 +0000 (02:16 -0500)]
eCryptfs: Cleanup inode initialization code
The eCryptfs inode get, initialization, and dentry interposition code
has two separate paths. One is for when dentry interposition is needed
after doing things like a mkdir in the lower filesystem and the other
is needed after a lookup. Unlocking new inodes and doing a d_add() needs
to happen at different times, depending on which type of dentry
interposing is being done.
This patch cleans up the inode get and initialization code paths and
splits them up so that the locking and d_add() differences mentioned
above can be handled appropriately in a later patch.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tested-by: David <david@unsolicited.net>
Benny Halevy [Fri, 20 May 2011 11:47:33 +0000 (13:47 +0200)]
NFSv4.1: purge deviceid cache on nfs_free_client
Use the pnfs_layoutdriver_type both as a qualifier for the deviceid,
distinguishing deviceid from different layout types on the server,
and for freeing the layout-driver allocated structure containing the
nfs4_deviceid_node.
[BUG in _deviceid_purge_client]
[layout_driver MUST set free_deviceid_node if using dev-cache]
[let ver < 4.1 compile]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[removed EXPORT_SYMBOL_GPL(nfs4_deviceid_purge_client)]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Tyler Hicks [Tue, 24 May 2011 02:18:20 +0000 (21:18 -0500)]
eCryptfs: Consolidate inode functions into inode.c
These functions should live in inode.c since their focus is on inodes
and they're primarily used by functions in inode.c.
Also does a simple cleanup of ecryptfs_inode_test() and rolls
ecryptfs_init_inode() into ecryptfs_inode_set().
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tested-by: David <david@unsolicited.net>
Peter Zijlstra [Sun, 29 May 2011 08:33:44 +0000 (10:33 +0200)]
mm, rmap: Add yet more comments to page_get_anon_vma/page_lock_anon_vma
Inspired by an analysis from Hugh on why again all this doesn't explode
in our face.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mikulas Patocka [Sun, 29 May 2011 12:03:13 +0000 (13:03 +0100)]
dm kcopyd: return client directly and not through a pointer
Return client directly from dm_kcopyd_client_create, not through a
parameter, making it consistent with dm_io_client_create.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>