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Fix printk formats for dma_addr_t:
drivers/iommu/tegra-smmu.c: In function 'smmu_iommu_iova_to_phys':
>> drivers/iommu/tegra-smmu.c:774:2: warning: format '%lx' expects argument of type 'long unsigned int', but argument 4 has type 'dma_addr_t' [-Wformat]
--
drivers/iommu/tegra-gart.c: In function 'gart_iommu_iova_to_phys':
>> drivers/iommu/tegra-gart.c:298:3: warning: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'dma_addr_t' [-Wformat]
Signed-off-by: Varun Sethi <Varun.Sethi@freescale.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
If the I2C adapter needed by the TFP410 device is not available yet,
return EPROBE_DEFER so that the device will get probed again.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for venc_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the VENC driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for hdmi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the HDMI driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for rfbi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the RFBI driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for dsi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the DSI driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for sdi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the SDI driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add proper error handling for dpi_probe_pdata(). This will cause
EPROBE_DEFER to be properly passed upwards, causing the DPI driver to be
probed again later if a resource was missing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Use platform_driver_register() instead of platform_driver_probe() so
that we can support EPROBE_DEFER.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omapfb requires the panel drivers to have been probed when omapfb is
initialized. omapfb does not support insertion of new panels after its
probe. This causes a problem in case omapdss or the panel probes have
been deferred due to EPROBE_DEFER error, as omapfb won't find any
displays.
As a quick fix, this patch changes the omapfb probe so that if omapfb
does not find any displays, it'll return EPROBE_DEFER. This is not
perfect, as with a board with no displays, omapfb will get deferred
forever. Also, if the board has multiple displays, but only some of them
have been probed, omapfb will start and leave the unprobed displays out.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Instead of using platform_driver_probe(), use module_platform_driver()
so that we can support deferred probing.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
omapfb requires the panels to have been probed before omapfb's probe. We
currently manage that by having omapfb in late initcall level. However,
a much simpler way is to just change the makefile so that omapfb is
after the panel drivers.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Commit 100c826235793345efe06b3558cc9d36166b1e26 (OMAPDSS: DPI: use new
clock calculation code) breaks dpi.c compilation if DSI is not enabled
in the kernel configuration.
Fix compilation by adding dummy inline functions for the ones that dpi.c
references. The functions will never be called, as dpi.c knows that
there is no DSI device available.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Add GK110 modesetting suport.
* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6:
drm/nve0: recognise nvf0 as a kepler board (GK110)
drm/nouveau: force noaccel when no PFIFO support present
drm/nvf0/disp: expose display class 2.2
We no longer use the snapshot list for anything. When we need to
look up a snapshot name, id, size, or feature mask, we just do it
directly rather than relying on this list being updated with every
refresh. The main reason it existed was for the benefit of the
device/sysfs entries that previously were associated with snapshots.
So get rid of the snapshot list, and struct rbd_snap, and the
hundreds of lines of code that supported them.
This resolves:
http://tracker.ceph.com/issues/4868
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This patch defines a handful of new functions that will allow
us to get rid of the rbd device structure's list of snapshots.
Define rbd_snap_id_by_name() to look up a snapshot id given its
name. This is efficient for format 1 images but not for format 2.
Fortunately it only gets called at mapping time so it's not that
critical.
Use rbd_snap_id_by_name() to find out the id for a snapshot getting
mapped, and pass that id to new functions rbd_snap_size() and
rbd_snap_features() to look up information about a given snapshot's
size and feature mask given its snapshot id. All this gets done
in rbd_dev_mapping_set().
As a result, snap_by_name() is no longer needed, so get rid of it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
In order to align with what was needed for format 1 rbd images,
rbd_dev_v2_snap_info() was set up to take as argument an index into
the array of snapshot ids in a rbd device's snapshot context.
This switches that around, so we pass the snapshot id instead.
In doing this, rbd_snap_name() now returns a dynamically-allocated
string rather than a fixed one, so there's no need to make a
duplicate in its caller, rbd_dev_spec_update().
This means the following functions take a snapshot id where they
previously used an index value:
rbd_dev_snap_info()
rbd_dev_v1_snap_info()
rbd_dev_v2_snap_info()
A new function, rbd_dev_snap_index(), determines the snap index for
format 1 images and uses it to look up the name.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Rather than scanning the list of snapshot structures for it, scan
the snapshot context buffer containing snapshot names in order to
determine for a format 1 image the name associated with a given
snapshot id.
Pull out the part of rbd_dev_v1_snap_info() that does this scan into
a new function, _rbd_dev_v1_snap_name(). Have that function return
a dynamically-allocated copy of the name, and don't duplicate it in
rbd_dev_v1_snap_info().
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Nothing ever uses the version field maintained in the object request
structure any more, so get rid of it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Only NULL is passed as the version argument to rbd_obj_method_sync(),
so get rid of it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Continued from the last patch, more parameters that can go away
because we no longer have a need to track object versions.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Several functions in rbd have parameters meant to allow the version
of an object to be passed in or out. The purpose of those was to
allow the version of a header object to be maintained, but we no
longer do that. As a result, these parameters are never actually
needed or used, so get rid of them.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
The rbd code takes care to maintain the version of the header
object. This was done in hopes of using it to detect a change in
the object between reading it and setting up a watch request to
be notified of changes.
The mechanism was never fully implemented, however. And we now
avoid the original problem by setting up the watch request before
ever reading the content of the header.
The osd doesn't interpret the object version supplied with a WATCH
osd op, nor does it use the version supplied with a NOTIFY_ACK op
(we can just supply 0 for both). There is therefore no need to
maintain the header's object version any more, so stop doing so.
We'll be able to simplify some more rbd code in the next few patches
as a result of this.
This resolves:
http://tracker.ceph.com/issues/3952
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Make explicit that snapshot names don't change by making functions
return and take parameters that that point to const qualified data.
This resolves:
http://tracker.ceph.com/issues/4867
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Whenever a header object event causes a mapped rbd image to refresh
its header information, revalidate_disk() is being called. This was
done in rbd_dev_refresh() outside the control mutex in order to
avoid a lock inversion. Although a an event like this *might*
indicate the image has changed size, most of the time it does not.
Record the image size before and after the refresh, and only
call revalidate_disk() if it changes.
This resolves:
http://tracker.ceph.com/issues/4867
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
A warning gets spewed for any image being probed, including parent
images. Set up a condition such that the warning message only gets
printed for the image being mapped, not any of its parents.
Also, I didn't like the way the warning ended up being so long.
Make it a terse warning instead. People experimenting with layering
will know what the message means.
This is part of:
http://tracker.ceph.com/issues/4867
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Now that we have a library routine to create snap contexts, use it.
This is part of:
http://tracker.ceph.com/issues/4857
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This creates a new source file "net/ceph/snapshot.c" to contain
utility routines related to ceph snapshot contexts. The main
motivation was to define ceph_create_snap_context() as a common way
to create these structures, but I've moved the definitions of
ceph_get_snap_context() and ceph_put_snap_context() there too.
(The benefit of inlining those is very small, and I'd rather
keep this collection of functions together.)
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Stop setting up Linux devices during the image probe operation.
Instead, set up the devices as a separate step after the image
probe, in rbd_add().
A consequence of this is that only mapped images get devices
assigned to them, which is pretty sweet.
This resolves:
http://tracker.ceph.com/issues/4774
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Currently an rbd_device structure gets destroyed from the release
routine for the device embedded within it. Stop doing that, instead
calling rbd_dev_image_release() right after rbd_bus_del_dev()
wherever the latter is called.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Define a new function rbd_dev_unprobe() which undoes state changes
that occur from calling rbd_dev_v1_probe() or rbd_dev_v2_probe().
Note that this is a superset of rbd_header_free(), which is now
getting removed (it seems to have been used improperly anyway).
Flesh out rbd_dev_image_release() so it undoes exactly what
rbd_dev_image_probe() does.
This means that:
- rbd_dev_device_release() gets called when the last device
reference gets dropped;
- that undoes everything done by the rbd_dev_device_setup() call
at the end of rbd_dev_image_probe() (and nothing more), ending
by calling rbd_dev_image_release(); and
- rbd_dev_image_release() undoes everything else done by
rbd_dev_image_probe() (and this includes a call to
rbd_dev_unprobe().
This means the image and device portions of an rbd device are fairly
cleanly separated now, so error paths should be a little easier to
verify than they used to be.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Rename rbd_dev_probe_finish() to be rbd_dev_device_setup(). Its
purpose is to set up the Linux side of an rbd device mapping.
Rename rbd_dev_release() to be rbd_dev_device_release(), making
it more obvious it serves as the inverse of the setup function
(or it will).
Encapsulate some of what was done in rbd_dev_release() into a new
function rbd_dev_image_release(), which serves as the inverse of
setting up the ceph side of the mapped rbd image.
Define a new helper rbd_dev_clear_mapping() to simply zero out the
fields of a mapping structure--the inverse of rbd_dev_set_mapping().
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Drop the module reference at the end of rbd_remove() for symmetry
with adding a reference at the top of rbd_add().
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Move setting up the watch request for an image so it's done in
rbd_dev_image_probe() rather than rbd_dev_probe_finish(). Move
it all the way up to before doing the initial probe. This avoids
a potential race condition, in which we get (and use) the initial
snapshot context for an image, and it gets changed between that
time and the time we get the watch set up.
This resolves:
http://tracker.ceph.com/issues/3871
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
When a format 2 image is refreshed, code is in place to verify that
the object order never changes from what it was originally. This
relies on the fact that the refresh will occur *after* an initial
load of information about the image.
An upcoming patch makes it possible for the refresh to occur first,
so we can no longer make this order check. The order really can't
ever change anyway--this was just a sanity check. So get rid of it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Currently, a watch on an rbd device header object gets torn down
when its final Linux device reference gets dropped. Instead, tear
it down when removing the device. If an error occurs cleaning up
the watch event when unmapping, abort the unmap request.
All images (including parents) still get watch requests set up, so
tear these down also, in rbd_dev_remove_parent(). For now, ignore
any errors that occur in this case.
Get rid of local variable "rc" in rbd_remove(); use "ret" instead
(they both somehow ended up defined in the function and only one is
needed).
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Define a new function rbd_header_name(), which allocates and formats
the name of the header object for the rbd device.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Move a block of initialization related to the "ceph-side" of an rbd
image out of rbd_dev_probe_finish() and into rbd_dev_image_probe().
Add appropriate error handling to clean things up in the event any
of these new functions return an error.
We know that rbd_dev_snaps_update(), rbd_dev_spec_update(), and
rbd_dev_probe_parent() all clean up after themselves before they
return an error, so no special cleanup is required except when an
earlier call succeeds. Since rbd_dev_spec_update() only updates the
spec field (whose cleanup will be handled by dropping the last
reference to the spec) there is no cleanup action associatied with
that.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Probe for a parent device earlier in rbd_dev_probe_finish(), before
starting to set up the Linux side of the rbd device.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
When an error occurs while finishing probing a device it is assumed
that parent devices get cleaned up when deleting a device. They
don't. Add a call to clean them up. Note that this means the
parent spec will already be cleaned up so it doesn't have to be
in one of the rbd_add() error paths.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
In certain error paths, it is possible for an rbd device to have a
parent spec but no parent rbd_dev. In rbd_dev_remove_parent() use
the parent field rather than parent_spec in determining whether to
try to remove any parent devices. Use assertions to indicate that
any non-null parent pointer has parent_spec associated with it.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
The function __rbd_remove() is used in two spots, and it's fairly
simple. It combines cleanup of part of the ceph-side state as well
as cleaning up the Linux-side state. Just open code it in the two
callers and eliminate the function.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
