perhaps bonghits could turn on my bus-mastering because the drm
certainly never bothered doing it before.
Signed-off-by: Dave Airlie <airlied@linux.ie>
As DRM_DEBUG macro already prints out the __FUNCTION__ string (see
drivers/char/drm/drmP.h), it is not worth doing this again. At some
other places the ending "\n" was added.
airlied:- I cleaned up a few that this patch missed also
Signed-off-by: Dave Airlie <airlied@linux.ie>
The casting is safe only when the list_head member is the first member of
the structure.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
While reading some code I stumbled across the use of 'err' in
drivers/char/drm/mga_dma.c::mga_do_cleanup_dma() and I think there's a small
problem.
The variable is only used inside #if __OS_HAS_AGP which is fine, but all that
ever happens is an assignment to the variable - it is never actually used for
anything. The variable is nicely initialized to zero which is also what the
return statement at the end of function returns (always at the moment).
It looks to me like that function should be returning 'err' instead of always
just returning 0. Here's a patch to do that.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@linux.ie>
Allow drivers to addmaps that won't be removed by lastclose or unload.
The unload needs to be re-ordered to avoid removing the hashs before
the driver has removed the final maps.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Previously any ioctls that weren't explicitly listed in the compat ioctl
table would fail with ENOTTY. If the incoming ioctl number is outside the
range of the table, assume that it Just Works, and pass it off to drm_ioctl.
This make the fence related ioctls work on 64-bit PowerPC.
Signed-off-by: Dave Airlie <airlied@linux.ie>
The i830 and newer intel 2D code adds the AGP base to map offsets already,
because it wasn't doing the AGP enable which used to set dev->agp->base.
Credit goes to Zhenyu for finding the issue.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Add suspend/resume support to the i915 driver. Moves some of the
initialization into the driver load routine, and fixes up places where we
assumed no dev_private existed in some of the cleanup paths. This allows
us to suspend/resume properly even if X isn't running.
Signed-off-by: Dave Airlie <airlied@linux.ie>
Make DRM devices use real Linux devices instead of class devices, which are
going away. While we're at it, clean up some of the interfaces to take
struct drm_device * or struct device * and use the global drm_class where
needed instead of passing it around.
Signed-off-by: Dave Airlie <airlied@linux.ie>
* 'async-tx-for-linus' of git://lost.foo-projects.org/~dwillia2/git/iop:
async_tx: allow architecture specific async_tx_find_channel implementations
async_tx: replace 'int_en' with operation preparation flags
async_tx: kill tx_set_src and tx_set_dest methods
async_tx: kill ASYNC_TX_ASSUME_COHERENT
iop-adma: use LIST_HEAD instead of LIST_HEAD_INIT
async_tx: use LIST_HEAD instead of LIST_HEAD_INIT
async_tx: fix compile breakage, mark do_async_xor __always_inline
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ata_piix.c:piix_init_one() must be __devinit
sata_via.c: Remove missleading comment.
libata-core: unblacklist HITACHI drives
sata_nv: fix ATAPI issues with memory over 4GB (v7)
ata: drivers/ata/sata_mv.c needs dmapool.h
libata: kill now unused n_iter and fix sata_fsl
ahci: fix CAP.NP and PI handling
sata_mv: Support SoC controllers
Rename: linux/pata_platform.h to linux/ata_platform.h
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (35 commits)
virtio net: fix oops on interface-up
Fix PHY Lib support for gianfar and ucc_geth
forcedeth: preserve registers
forcedeth: phy status fix
forcedeth: restart tx/rx
ipvs: Make wrr "no available servers" error message rate-limited
[PPPOL2TP]: Label unused warning when CONFIG_PROC_FS is not set.
[NET_SCHED]: cls_flow: support classification based on VLAN tag
[VLAN]: Constify skb argument to vlan_get_tag()
[NET_SCHED]: cls_flow: fix key mask validity check
[NET_SCHED]: em_meta: fix compile warning
b43: Fix DMA for 30/32-bit DMA engines
b43: fix build with CONFIG_SSB_PCIHOST=n
mac80211: Is not EXPERIMENTAL anymore
iwl3945-base.c: fix off-by-one errors
b43legacy: fix DMA slot resource leakage
b43legacy: drop packets we are not able to encrypt
b43legacy: fix suspend/resume
b43legacy: fix PIO crash
Generic HDLC - use random_ether_addr()
...
Warning is reproducible with selected FB_CFB_REV_PIXELS_IN_BYTE.
CC drivers/video/sysfillrect.o
In file included from drivers/video/sysfillrect.c:18:
drivers/video/fb_draw.h: In function `fb_rev_pixels_in_long':
drivers/video/fb_draw.h:94: warning: no return statement in function returning non-void
CC drivers/video/syscopyarea.o
In file included from drivers/video/syscopyarea.c:22:
drivers/video/fb_draw.h: In function `fb_rev_pixels_in_long':
drivers/video/fb_draw.h:94: warning: no return statement in function returning non-void
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Include linux/delay.h to fix compiler error:
drivers/virtio/virtio_balloon.c: In function 'fill_balloon':
drivers/virtio/virtio_balloon.c:98: error: implicit declaration of function 'msleep'
Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some Supermicro BIOSes describe a SATA PCI BAR as a motherboard resource.
The PNP system driver claims motherboard resources, and this prevents the
sata_nv driver from requesting it later.
This patch disables the PNP0C01/PNP0C02 resources so they won't be claimed
by the PNP system driver, so they'll available for sata_nv.
This fixes the bugs below, where sata_nv detects only two out of four SATA
drives. The signature includes dmesg lines similar to these:
pnp: 00:09: iomem range 0xdfefc000-0xdfefcfff has been reserved
pnp: 00:09: iomem range 0xdfefd000-0xdfefd3ff has been reserved
pnp: 00:09: iomem range 0xdfefe000-0xdfefe3ff has been reserved
PCI: Unable to reserve mem region #6:1000@dfefd000 for device 0000:80:07.0
sata_nv: probe of 0000:80:07.0 failed with error -16
PCI: Unable to reserve mem region #6:1000@dfefe000 for device 0000:80:08.0
sata_nv: probe of 0000:80:08.0 failed with error -16
References:
https://bugzilla.redhat.com/show_bug.cgi?id=280641https://bugzilla.redhat.com/show_bug.cgi?id=313491http://lkml.org/lkml/2008/1/9/449http://thread.gmane.org/gmane.linux.acpi.devel/27312
This is post-2.6.24 material.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The PNP_DRIVER_RES_DO_NOT_CHANGE flag is meant to signify that the PNP core
should not change resources for the device -- not that it shouldn't
disable/enable the device on suspend/resume.
ALSA ISAPnP drivers set PNP_DRIVER_RES_DO_NOT_CHANAGE (0x0001) through
setting PNP_DRIVER_RES_DISABLE (0x0003). The latter including the former
may in itself be considered rather unexpected but doesn't change that
suspend/resume wouldn't seem to have any business testing the flag.
As reported by Ondrej Zary for snd-cs4236, ALSA driven ISAPnP cards don't
survive swsusp hibernation with the resume skipping setting the resources
due to testing the flag -- the same test in the suspend path isn't enough
to keep hibernation from disabling the card it seems.
These tests were added (in 2005) by Piere Ossman in commit
68094e3251, "alsa: Improved PnP suspend
support" who doesn't remember why. This deletes them.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Tested-by: Ondrej Zary <linux@rainbow-software.org>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Pierre Ossman <drzeus@drzeus.cx>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There are three kind of parse functions provided by PNP acpi/bios:
- get current resources
- set resources
- get possible resources
The first two may be needed later at runtime.
The possible resource settings should never change dynamically.
And even if this would make any sense (I doubt it), the current implementation
only parses possible resource settings at early init time:
-> declare all the option parsing __init
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-By: Rene Herman <rene.herman@gmail.com>
Cc: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make pnp_activate_dev() and pnp_disable_dev() return only 0 (success) or a
negative error value, as pci_enable_device() and pci_disable_device() do.
Previously they returned:
0: device was already active (or disabled)
1: we just activated (or disabled) device
<0: -EBUSY or error from pnp_start_dev() (or pnp_stop_dev())
Now we return only 0 (device is active or disabled) or <0 (error).
All in-tree callers either ignore the return values or check only for
errors (negative values).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
raid5's 'make_request' function calls generic_make_request on underlying
devices and if we run out of stripe heads, it could end up waiting for one of
those requests to complete. This is bad as recursive calls to
generic_make_request go on a queue and are not even attempted until
make_request completes.
So: don't make any generic_make_request calls in raid5 make_request until all
waiting has been done. We do this by simply setting STRIPE_HANDLE instead of
calling handle_stripe().
If we need more stripe_heads, raid5d will get called to process the pending
stripe_heads which will call generic_make_request from a
This change by itself causes a performance hit. So add a change so that
raid5_activate_delayed is only called at unplug time, never in raid5. This
seems to bring back the performance numbers. Calling it in raid5d was
sometimes too soon...
Neil said:
How about we queue it for 2.6.25-rc1 and then about when -rc2 comes out,
we queue it for 2.6.24.y?
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Tested-by: dean gaudet <dean@arctic.org>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Finish ITERATE_ to for_each conversion.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As this is more in line with common practice in the kernel. Also swap the
args around to be more like list_for_each.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As this is more consistent with kernel style.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
As suggested by Andrew Morton.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Due to possible deadlock issues we need to use a schedule work to kobject_del
an 'rdev' object from a different thread.
A recent change means that kobject_add no longer gets a refernce, and
kobject_del doesn't put a reference. Consequently, we need to explicitly hold
a reference to ensure that the last reference isn't dropped before the
scheduled work get a chance to call kobject_del.
Also, rename delayed_delete to md_delayed_delete to that it is more obvious in
a stack trace which code is to blame.
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently, a given device is "claimed" by a particular array so that it cannot
be used by other arrays.
This is not ideal for DDF and other metadata schemes which have their own
partitioning concept.
So for externally managed metadata, just claim the device for md in general,
require that "offset" and "size" are set properly for each device, and make
sure that if a device is included in different arrays then the active sections
do not overlap.
This involves adding another flag to the rdev which makes it awkward to set
"->flags = 0" to clear certain flags. So now clear flags explicitly by name
when we want to clear things.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If you try to start an array for which the number of raid disks is listed as
zero, md will currently try to read metadata off any devices that have been
given. This was done because the value of raid_disks is used to signal
whether array details have been provided by userspace (raid_disks > 0) or must
be read from the devices (raid_disks == 0).
However for an array without persistent metadata (or with externally managed
metadata) this is the wrong thing to do. So we add a test in do_md_run to
give an error if raid_disks is zero for non-persistent arrays.
This requires that mddev->persistent is set corrently at this point, which it
currently isn't for in-kernel autodetected arrays.
So set ->persistent for autodetect arrays, and remove the settign in
super_*_validate which is now redundant.
Also clear ->persistent when stopping an array so it is consistently zero when
starting an array.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This allows userspace to control resync/reshape progress and synchronise it
with other activities, such as shared access in a SAN, or backing up critical
sections during a tricky reshape.
Writing a number of sectors (which must be a multiple of the chunk size if
such is meaningful) causes a resync to pause when it gets to that point.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When a device fails, we must not allow an further writes to the array until
the device failure has been recorded in array metadata. When metadata is
managed externally, this requires some synchronisation...
Allow/require userspace to explicitly remove failed devices from active
service in the array by writing 'none' to the 'slot' attribute. If this
reduces the number of failed devices to 0, the write block will automatically
be lowered.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Add a state flag 'external' to indicate that the metadata is managed
externally (by user-space) so important changes need to be
left of user-space to handle.
Alternates are non-persistant ('none') where there is no stable metadata -
after the array is stopped there is no record of it's status - and
internal which can be version 0.90 or version 1.x
These are selected by writing to the 'metadata' attribute.
- move the updating of superblocks (sync_sbs) to after we have checked if
there are any superblocks or not.
- New array state 'write_pending'. This means that the metadata records
the array as 'clean', but a write has been requested, so the metadata has
to be updated to record a 'dirty' array before the write can continue.
This change is reported to md by writing 'active' to the array_state
attribute.
- tidy up marking of sb_dirty:
- don't set sb_dirty when resync finishes as md_check_recovery
calls md_update_sb when the sync thread finishes anyway.
- Don't set sb_dirty in multipath_run as the array might not be dirty.
- don't mark superblock dirty when switching to 'clean' if there
is no internal superblock (if external, userspace can choose to
update the superblock whenever it chooses to).
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently an md array with a write-intent bitmap does not updated that bitmap
to reflect successful partial resync. Rather the entire bitmap is updated
when the resync completes.
This is because there is no guarentee that resync requests will complete in
order, and tracking each request individually is unnecessarily burdensome.
However there is value in regularly updating the bitmap, so add code to
periodically pause while all pending sync requests complete, then update the
bitmap. Doing this only every few seconds (the same as the bitmap update
time) does not notciably affect resync performance.
[snitzer@gmail.com: export bitmap_cond_end_sync]
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: "Mike Snitzer" <snitzer@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Clean up the coding style in raid6test/test.c. Break it apart into
subfunctions to make the code more readable.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make both mktables.c and its output CodingStyle compliant. Update the
copyright notice.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The current attr_fgcol_ec / attr_bgcol_ec macros do a simple shift of bits
to get the color from vc_video_erase_char. For a monochrome display
however the attribute does not contain any color, only attribute bits.
Furthermore the reverse bit is lost because it is shifted out, the
resulting color is always 0.
This can bee seen on a monochrome console either directly or by setting it
to inverse mode via "setterm -inversescreen on" . Text is written with
correct color, fb_fillrects from a bit_clear / bit_clear_margins will get
wrong colors.
Signed-off-by: Thomas Pfaff <tpfaff@pcs.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
