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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Jens Axboe <axboe@suse.de>
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Instead of having ->read_sectors and ->write_sectors, combine the two
into ->sectors[2] and similar for the other fields. This saves a branch
several places in the io path, since we don't have to care for what the
actual io direction is. On my x86-64 box, that's 200 bytes less text in
just the core (not counting the various drivers).
Signed-off-by: Jens Axboe <axboe@suse.de>
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Right now we do it at queueing time, which works alright for reads
(since they are usually sync), but not for async writes since we can
queue io a lot faster than we can complete it. This makes the vmstat
output look extremely bursty.
Signed-off-by: Jens Axboe <axboe@suse.de>
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cfq's add_req_fn callback may invoke q->request_fn directly and
depending on low-level driver used and timing, a queued request may be
finished & deallocated before add_req_fn callback returns. So,
__elv_add_request must not access rq after it's passed to add_req_fn
callback.
This patch moves rq_mergeable test above add_req_fn(). This may
result in q->last_merge pointing to REQ_NOMERGE request if add_req_fn
callback sets it but as RQ_NOMERGE is checked again when blk layer
actually tries to merge requests, this does not cause any problem.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch fixes a panic in the current tree caused by a race condition between the initial replenish cycle and the rx processing of the first packets trying to replenish the buffers.
Signed-off-by: Santiago Leon <santil@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Manual fixups for some clashes due to re-indenting.
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These haven't been used in quite a long time, takes 1K buffer out of structures.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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This looks ugly, but it is the only thing that makes sense that doesn't
change the API.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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PCI Express support broke PCIGART
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Finally cleaned up the sparse warnings for the drm.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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In order to get some better debugging from people about certain hangs/crashes
we need to be able to turn AGP writeback off permanently...
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Signed-off-by: Dave Airlie <airlied@linux.ie>
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Andrew reported a warning on this line, just case to void *.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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I've been threatening this for a while, so no point hanging around.
This lindents the DRM code which was always really bad in tabbing department.
I've also fixed some misnamed files in comments and removed some trailing
whitespace.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Make some of the DRM_ macros use the real kernel macros.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Add support for Radeon PCI Express cards (needs a new X.org DDX)
Also allows PCI GART table to be stored in VRAM for non PCIE cards
Signed-off-by: Dave Airlie <airlied@linux.ie>
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Add support for GL_ATI_fragment_shader, new packets R200_EMIT_PP_AFS_0/1,
R200_EMIT_PP_TXCTLALL_0-5 (replaces R200_EMIT_PP_TXFILTER_0-5, 2 more regs)
and R200_EMIT_ATF_TFACTOR (replaces R200_EMIT_TFACTOR_0 (8 consts instead of 6)
From: Roland Scheidegger, David Airlie
Signed-off-by: David Airlie <airlied@linux.ie>
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This adds a missing change from CVS for consistent maps.
Signed-off-by: Dave Airlie <airlied@linux.ie>
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drivers/char/tlclk.c: In function `tlclk_init':
drivers/char/tlclk.c:775: warning: implicit declaration of function `platform_device_register_simple'
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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CC drivers/char/tpm/tpm_nsc.o
drivers/char/tpm/tpm_nsc.c:277: error: `platform_bus_type' undeclared here (not in a function)
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CC drivers/char/tpm/tpm_atmel.o
drivers/char/tpm/tpm_atmel.c:175: error: `platform_bus_type' undeclared here (not in a function)
Make sure to include proper headers.
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Folk seem to get confused when they see two or more ttyS0 ports
appearing at boot time. One comes from the legacy table, and
one from PNP.
Hence, display the bus ID of the device which supplied the port.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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release_mem_region)
Patch from Dan Williams
* If request_irq fails then a call to release_mem_region will be made with an invalid pointer.
* Two formatting fixes
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Initialise the .owner field of the device driver
with the module that owns it, for easier tracking
of device driver ownership. (probably also better
for sysfs...)
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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update copyright + update bells and whistles driver for v2.6
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The most trivial typo fix in the world.
Signed-off-by: Pozsar Balazs <pozsy@uhulinux.hu>
Signed-off-by: Pádraig Brady <P@draigBrady.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Initialise the .owner field of the device driver
with the module that owns it, for easier tracking
of device driver ownership.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The USB "handoff" code is an early PCI quirk to make sure we own the USB
controller (as opposed to the BIOS/SMM). But if the controller isn't
even enabled yet, don't try to access it.
Acked-by: Paul Mackerras <paulus@samba.org> (who had an alternate patch)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Jeff Garzik <jgarzik@pobox.com> points out that this was wrong: we need to
disable local interrupts while holding KM_IRQ0 due to IRQ sharing.
And holding interrupts off during a big PIO opration is expensive, so we only
want to do that if we know the page was highmem.
So revert commit 17fd47ab4d33e764216b87006d8118fa050b4c92
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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CONFIG_PC is left-over cruft after the introduction of CONFIG_X86_PC with
the subarch split. Remove it, and fixup the remaining users to depend on
CONFIG_X86_PC instead.
Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Tejun Heo notes:
"I'm currently debugging this. The problem is that we are using the
generic dispatch queue directly in the noop sched and merging is NOT
allowed on dispatch queues but generic handling of last_merge tries
to merge requests. I'm still trying to verify this, so I'll be back
with results soon."
In the meantime, disable merging for noop by setting REQ_NOMERGE in
elevator_noop_add_request().
Eventually, we should add a noop_list and do the dispatching like in the
other io schedulers. Merging is still beneficial for noop (and it has
always done it).
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Don't clear ->elevator_data on exit, if we are switching queues we are
overwriting the data of the new io scheduler.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
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A lot of power packed into a little patch.
This change eliminates the sharing between our controller-wide spinlock
and the SCSI core's Scsi_Host lock. As the locking in libata was
already highly compartmentalized, always referencing our own lock, and
never scsi_host::host_lock.
As a side effect, this change eliminates a deadlock from calling
scsi_finish_command() while inside our spinlock.
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Integrate ata_exec() and ata_tf_to_host() into their only caller,
ata_bus_edd().
Rename ata_tf_to_host_nolock() to ata_tf_to_host().
This makes locking a bit easier to review, and may help pave the way for
future changes.
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Manual #include fixups for clashes - there may be some unnecessary
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Fix the IMX serial driver to unregister its driver structure
when it is unloaded.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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Convert everyone who uses platform_bus_type to include
linux/platform_device.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
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The problem is that adbhid[]->input is NULL, so the kernel oopses with
a null pointer dereference as soon as a key is pressed.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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