Steven Rostedt [Sat, 13 Mar 2010 00:41:23 +0000 (19:41 -0500)]
function-graph: Init curr_ret_stack with ret_stack
If the graph tracer is active, and a task is forked but the allocating of
the processes graph stack fails, it can cause crash later on.
This is due to the temporary stack being NULL, but the curr_ret_stack
variable is copied from the parent. If it is not -1, then in
ftrace_graph_probe_sched_switch() the following:
for (index = next->curr_ret_stack; index >= 0; index--)
next->ret_stack[index].calltime += timestamp;
Will cause a kernel OOPS.
Found with Li Zefan's ftrace_stress_test.
Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Lai Jiangshan [Mon, 8 Mar 2010 06:50:43 +0000 (14:50 +0800)]
ring-buffer: Move disabled check into preempt disable section
The ring buffer resizing and resetting relies on a schedule RCU
action. The buffers are disabled, a synchronize_sched() is called
and then the resize or reset takes place.
But this only works if the disabling of the buffers are within the
preempt disabled section, otherwise a window exists that the buffers
can be written to while a reset or resize takes place.
Cc: stable@kernel.org
Reported-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <
4B949E43.
2010906@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Ingo Molnar [Thu, 11 Mar 2010 12:39:33 +0000 (13:39 +0100)]
Merge branch 'tip/tracing/core' of git://git./linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
Tim Bird [Thu, 25 Feb 2010 23:36:43 +0000 (15:36 -0800)]
function-graph: Add tracing_thresh support to function_graph tracer
Add support for tracing_thresh to the function_graph tracer. This
version of this feature isolates the checks into new entry and
return functions, to avoid adding more conditional code into the
main function_graph paths.
When the tracing_thresh is set and the function graph tracer is
enabled, only the functions that took longer than the time in
microseconds that was set in tracing_thresh are recorded. To do this
efficiently, only the function exits are recorded:
[tracing]# echo 100 > tracing_thresh
[tracing]# echo function_graph > current_tracer
[tracing]# cat trace
# tracer: function_graph
#
# CPU DURATION FUNCTION CALLS
# | | | | | | |
1) ! 119.214 us | } /* smp_apic_timer_interrupt */
1) <========== |
0) ! 101.527 us | } /* __rcu_process_callbacks */
0) ! 126.461 us | } /* rcu_process_callbacks */
0) ! 145.111 us | } /* __do_softirq */
0) ! 149.667 us | } /* do_softirq */
0) ! 168.817 us | } /* irq_exit */
0) ! 248.254 us | } /* smp_apic_timer_interrupt */
Also, add support for specifying tracing_thresh on the kernel
command line. When used like so: "tracing_thresh=200 ftrace=function_graph"
this can be used to analyse system startup. It is important to disable
tracing soon after boot, in order to avoid losing the trace data.
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Tim Bird <tim.bird@am.sony.com>
LKML-Reference: <
4B87098B.
4040308@am.sony.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Arnaldo Carvalho de Melo [Fri, 5 Mar 2010 21:23:50 +0000 (18:23 -0300)]
tracing: Update the comm field in the right variable in update_max_tr
The latency output showed:
# | task: -3 (uid:0 nice:0 policy:1 rt_prio:99)
The comm is missing in the "task:" and it looks like a minus 3 is
the output. The correct display should be:
# | task: migration/0-3 (uid:0 nice:0 policy:1 rt_prio:99)
The problem is that the comm is being stored in the wrong data
structure. The max_tr.data[cpu] is what stores the comm, not the
tr->data[cpu].
Before this patch the max_tr.data[cpu]->comm was zeroed and the /debug/trace
ended up showing just the '-' sign followed by the pid.
Also remove a needless initialization of max_data.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <
1267824230-23861-1-git-send-email-acme@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Steven Rostedt [Sat, 6 Mar 2010 01:08:58 +0000 (20:08 -0500)]
function-graph: Use comment notation for func names of dangling '}'
When a '}' does not have a matching function start, the name is printed
within parenthesis. But this makes it confusing between ending '}'
and function starts. This patch makes the function name appear in C comment
notation.
Old view:
3) 1.281 us | } (might_fault)
3) 3.620 us | } (filldir)
3) 5.251 us | } (call_filldir)
3) | call_filldir() {
3) | filldir() {
New view:
3) 1.281 us | } /* might_fault */
3) 3.620 us | } /* filldir */
3) 5.251 us | } /* call_filldir */
3) | call_filldir() {
3) | filldir() {
Requested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Steven Rostedt [Sat, 6 Mar 2010 01:02:19 +0000 (20:02 -0500)]
function-graph: Fix unused reference to ftrace_set_func()
The declaration of ftrace_set_func() is at the start of the ftrace.c file
and wrapped with a #ifdef CONFIG_FUNCTION_GRAPH condition. If function
graph tracing is enabled but CONFIG_DYNAMIC_FTRACE is not, a warning
about that function being declared static and unused is given.
This really should have been placed within the CONFIG_FUNCTION_GRAPH
condition that uses ftrace_set_func().
Moving the declaration down fixes the warning and makes the code cleaner.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Ingo Molnar [Thu, 4 Mar 2010 10:51:29 +0000 (11:51 +0100)]
Merge branch 'tip/tracing/urgent' of git://git./linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent
Lai Jiangshan [Tue, 2 Mar 2010 09:54:50 +0000 (17:54 +0800)]
tracing: Fix warning in s_next of trace file ops
This warning in s_next() can be triggered by lseek():
[<
c018b3f7>] ? s_next+0x77/0x80
[<
c013e3c1>] warn_slowpath_common+0x81/0xa0
[<
c018b3f7>] ? s_next+0x77/0x80
[<
c013e3fa>] warn_slowpath_null+0x1a/0x20
[<
c018b3f7>] s_next+0x77/0x80
[<
c01efa77>] traverse+0x117/0x200
[<
c01eff13>] seq_lseek+0xa3/0x120
[<
c01efe70>] ? seq_lseek+0x0/0x120
[<
c01d7081>] vfs_llseek+0x41/0x50
[<
c01d8116>] sys_llseek+0x66/0xa0
[<
c0102bd0>] sysenter_do_call+0x12/0x26
The iterator "leftover" variable is zeroed in the opening of the trace
file. But lseek can call s_start() which will call s_next() without
reseting the "leftover" variable back to zero, which might trigger
the WARN_ON_ONCE(iter->leftover) that is in s_next().
Cc: stable@kernel.org
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
LKML-Reference: <
4B8CE06A.
9090207@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Linus Torvalds [Tue, 2 Mar 2010 18:41:26 +0000 (10:41 -0800)]
Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux
* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux: (49 commits)
OMAP: DSS2: Taal: Fix TE when resuming
OMAP: DSS2: Taal: Fix ESD check
OMAP: DSS2: OMAPFB: Constify some function parameters
OMAP: DSS2: OMAPFB: install omapfb.h
OMAP: DSS2: DSI: add error prints
OMAP: DSS2: TPO-TD03MTEA1: fix function names
OMAP: DSS2: DSI: add dsi_vc_dcs_read_2() helper
OMAP: DSS2: OMAPFB: Remove FB_OMAP2_FORCE_AUTO_UPDATE
OMAP: DSS2: DSI: remove external TE support
OMAP: DSS2: move timing functions
OMAP: DSS2: move set/get_wss()
OMAP: DSS2: move enable/disable/suspend/resume
OMAP: DSS2: move update() and sync()
OMAP: DSS2: move set/get_update_mode()
OMAP: DSS2: move enable/get_te()
OMAP: DSS2: move get_recommended_bpp()
OMAP: DSS2: move get_resolution()
OMAP: DSS2: move enable/disable_channel to overlay manager
OMAP: DSS2: move wait_vsync()
OMAP: DSS2: move get/set_rotate()
...
Linus Torvalds [Tue, 2 Mar 2010 18:34:25 +0000 (10:34 -0800)]
Merge branch 'omap-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (214 commits)
omap2: Initialize Menelaus and MMC for N8X0
AM3517 EVM: correct typo - tca6416 mispelt as tca6516
AM3517 EVM: Enable I2C support
AM35x: Enable OMAP_MUX in defconfig
AM35x: Add missing GPIO mux config for EHCI port
Zoom3: Defconfig update
omap: i2c: Fix muxing for command line enabled bus
OMAP4: clock: Remove clock hacks from timer-gp.c
OMAP4: clock: Add dummy clock nodes for interface clocks
OMAP4: clock: Rename leaf clock nodes to end with a _ick or _fck
OMAP2+ clock: revise omap2_clk_{disable,enable}()
OMAP2/3 clock: combine OMAP2 & 3 boot-time MPU rate change code
OMAP clockdomain: if no autodeps exist, don't try to add or remove them
OMAP hwmod: add hwmod class support
OMAP hwmod: convert header files with static allocations into C files
OMAP hwmod: convert hwmod to use hardware clock names rather than clkdev dev+con
OMAP clock: add omap_clk_get_by_name() for use by OMAP hwmod core code
OMAP3: clock: add capability to change rate of dpll4_m5_ck_3630
OMAP4 clock: drop the ALWAYS_ENABLED clock flag
OMAP clock: drop RATE_FIXED clock flag
...
Linus Torvalds [Tue, 2 Mar 2010 18:33:36 +0000 (10:33 -0800)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
Revert "blkdev: fix merge_bvec_fn return value checks"
Jens Axboe [Tue, 2 Mar 2010 18:17:34 +0000 (19:17 +0100)]
Revert "blkdev: fix merge_bvec_fn return value checks"
This reverts commit
9f7cdbc33f36d28e57eaba0093f68f0d14c38c5b.
It's causing oopses om dm setups, so revert it until we investigate.
Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Linus Torvalds [Tue, 2 Mar 2010 15:56:44 +0000 (07:56 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
sparc: Support show_unhandled_signals.
sparc: use __ratelimit
sunxvr500: Additional PCI id for sunxvr500 driver
sparc: use asm-generic/scatterlist.h
sparc64: If 'slot-names' property exist, create sysfs PCI slot information.
sparc: remove trailing space in messages
sparc: remove redundant return statements
Linus Torvalds [Tue, 2 Mar 2010 15:55:08 +0000 (07:55 -0800)]
Merge git://git./linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1341 commits)
virtio_net: remove forgotten assignment
be2net: fix tx completion polling
sis190: fix cable detect via link status poll
net: fix protocol sk_buff field
bridge: Fix build error when IGMP_SNOOPING is not enabled
bnx2x: Tx barriers and locks
scm: Only support SCM_RIGHTS on unix domain sockets.
vhost-net: restart tx poll on sk_sndbuf full
vhost: fix get_user_pages_fast error handling
vhost: initialize log eventfd context pointer
vhost: logging thinko fix
wireless: convert to use netdev_for_each_mc_addr
ethtool: do not set some flags, if others failed
ipoib: returned back addrlen check for mc addresses
netlink: Adding inode field to /proc/net/netlink
axnet_cs: add new id
bridge: Make IGMP snooping depend upon BRIDGE.
bridge: Add multicast count/interval sysfs entries
bridge: Add hash elasticity/max sysfs entries
bridge: Add multicast_snooping sysfs toggle
...
Trivial conflicts in Documentation/feature-removal-schedule.txt
Tomi Valkeinen [Tue, 2 Mar 2010 10:13:55 +0000 (12:13 +0200)]
OMAP: DSS2: Taal: Fix TE when resuming
TE was not initialized properly on power on, which broke TE when resuming
from suspend.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Jiri Pirko [Tue, 2 Mar 2010 11:57:33 +0000 (03:57 -0800)]
virtio_net: remove forgotten assignment
This is no longer needed. I missed to remove this in
567ec874d15b478c8eda7e9a5d2dcb05f13f1fb5 ("net: convert multiple
drivers to use netdev_for_each_mc_addr, part6")
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sathya Perla [Tue, 2 Mar 2010 11:56:39 +0000 (03:56 -0800)]
be2net: fix tx completion polling
In tx/mcc polling, napi_complete() is being incorrectly called
before reaping tx completions. This can cause tx compl processing
to be scheduled on another cpu concurrently which can result in a panic.
This if fixed by calling napi complete() after tx/mcc compl processing
but before re-enabling interrupts (via a cq notify).
Signed-off-by: Sathya Perla <sathyap@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Herton Ronaldo Krzesinski [Tue, 2 Mar 2010 11:44:41 +0000 (03:44 -0800)]
sis190: fix cable detect via link status poll
Some sis190 devices don't report LinkChange, so do polling for
link status.
Fixes http://bugzilla.kernel.org/show_bug.cgi?id=11926
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 1 Mar 2010 03:09:26 +0000 (03:09 +0000)]
net: fix protocol sk_buff field
Commit
e992cd9b72a18 (kmemcheck: make bitfield annotations truly no-ops
when disabled) allows us to revert a workaround we did in the past to
not add holes in sk_buff structure.
This patch partially reverts commit
14d18a81b5171
(net: fix kmemcheck annotations) so that sparse doesnt complain:
include/linux/skbuff.h:357:41: error: invalid bitfield specifier for
type restricted __be16.
Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sridhar Samudrala [Mon, 1 Mar 2010 09:53:04 +0000 (09:53 +0000)]
bridge: Fix build error when IGMP_SNOOPING is not enabled
Fix the following build error when IGMP_SNOOPING is not enabled.
In file included from net/bridge/br.c:24:
net/bridge/br_private.h: In function 'br_multicast_is_router':
net/bridge/br_private.h:361: error: 'struct net_bridge' has no member named 'multicast_router'
net/bridge/br_private.h:362: error: 'struct net_bridge' has no member named 'multicast_router'
net/bridge/br_private.h:363: error: 'struct net_bridge' has no member named 'multicast_router_timer'
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Lindgren [Mon, 1 Mar 2010 22:19:05 +0000 (14:19 -0800)]
Merge ... mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
Linus Torvalds [Mon, 1 Mar 2010 21:05:40 +0000 (13:05 -0800)]
Merge branch 'davinci-for-linus' of git://git./linux/kernel/git/khilman/linux-davinci
* 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-davinci: (40 commits)
DaVinci DM365: Adding support for SPI EEPROM
DaVinci DM365: Adding DM365 SPI support
DaVinci DM355: Modifications to DM355 SPI support
DaVinci: SPI: Adding header file for SPI support.
davinci: dm646x: CDCE clocks: davinci_clk converted to clk_lookup
davinci: clkdev cleanup: remove clk_lookup wrapper, use clkdev_add_table()
DaVinci: DM365: Voice codec support for the DM365 SoC
davinci: clock: let clk->set_rate function sleep
Add SDA and SCL pin numbers to i2c platform data
davinci: da8xx/omap-l1xx: Add EDMA platform data for da850/omap-l138
davinci: build list of unused EDMA events dynamically
davinci: Fix edma_alloc_channel api for EDMA_CHANNEL_ANY case
davinci: Keep count of channel controllers on a platform
davinci: Correct return value of edma_alloc_channel api
davinci: add
CDCE949 support on DM6467 EVM
davinci: add support for
CDCE949 clock synthesizer
davinci: da850/omap-l138 EVM: register for suspend support
davinci: da850/omap-l138: add support for SoC suspend
davinci: add power management support
DaVinci: DM365: Changing default queue for DM365.
...
Linus Torvalds [Mon, 1 Mar 2010 21:04:58 +0000 (13:04 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (38 commits)
sata_via: Delay on vt6420 when starting ATAPI DMA write
ata: Detect Delkin Devices compact flash
pata_efar: Enable parallel scanning
pata_atiixp: enable parallel scan
[libata] pata_atiixp: add locking for parallel scanning
[libata] pata_efar: add locking for parallel scanning
libata: Pass host flags into the pci helper
[libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI
libata: Allow pata_legacy to be built on non-ISA but PCI systems
pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets
pata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards
[libata] pata_at91: fix backslash-continued string
pata_via: store UDMA masks in via_isa_bridges table
pata_via: fix address setup timings underlocking
pata_serverworks: fix error message
pata_serverworks: fix PIO setup for the second channel
pata_efar: fix secondary port support
pata_cypress: fix PIO timings underclocking
pata_cs5535: use correct values for PIO1 and PIO2 data timings
pata_cmd64x: remove unused definitions
...
Bart Hartgers [Sun, 14 Feb 2010 12:04:50 +0000 (13:04 +0100)]
sata_via: Delay on vt6420 when starting ATAPI DMA write
When writing a disc on certain lite-on dvd-writers (also rebadged
as optiarc/LG/...) connected to a vt6420, the ATAPI CDB ends
up in the datastream and on the disc, causing silent corruption.
Delaying between sending the CDB and starting DMA seems to
prevent this.
I do not know if there are burners that do not suffer from
this, but the patch should be safe for those as well.
There are many reports of this issue, but AFAICT no solution was
found before. For example:
http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/0561.html
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Ben Gardner [Tue, 23 Feb 2010 18:41:22 +0000 (12:41 -0600)]
ata: Detect Delkin Devices compact flash
I have a Delkin Devices compact flash card that isn't being recognized using the
SATA/PATA drivers.
The card is recognized and works with the deprecated ATA drivers.
The error I am seeing is:
ata1.00: failed to IDENTIFY (device reports invalid type, err_mask=0x0)
I tracked it down to ata_id_is_cfa() in include/linux/ata.h.
The Delkin card has id[0] set to 0x844a and id[83] set to 0.
This isn't what the kernel expects and is probably incorrect.
The simplest work-around is to add a check for 0x844a to ata_id_is_cfa().
Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Wed, 17 Feb 2010 13:17:52 +0000 (13:17 +0000)]
pata_efar: Enable parallel scanning
Again originally proposed by Bartlomiej but this does it by using the
generic helper logic instead.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Wed, 17 Feb 2010 13:17:44 +0000 (13:17 +0000)]
pata_atiixp: enable parallel scan
This was originally proposed by Bartlomiej but as a device specific
expansion of the init_one function rather than making the helper more
generic.
Enable the parallel scan via the generic flags.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Wed, 17 Feb 2010 13:17:31 +0000 (13:17 +0000)]
[libata] pata_atiixp: add locking for parallel scanning
This is similar change as commit
60c3be3 for ata_piix host driver
and while pata_atiixp doesn't enable parallel scan yet the race
could probably also be triggered by requesting re-scanning of both
ports at the same time using SCSI sysfs interface.
[Ported to current tree without other patch dependancies by Alan Cox]
Original is
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This one is
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Wed, 17 Feb 2010 13:16:58 +0000 (13:16 +0000)]
[libata] pata_efar: add locking for parallel scanning
Add clearing of UDMA enable bit also for PIO modes and then add
extra locking for parallel scanning.
This is similar change as commit
60c3be3 for ata_piix host driver
and while pata_efar doesn't enable parallel scan yet the race could
probably also be triggered by requesting re-scanning of both ports
at the same time using SCSI sysfs interface.
[Ported to current kernel without other patch dependancies by
Alan Cox]
Original is
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This one is
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Tue, 23 Feb 2010 07:26:06 +0000 (02:26 -0500)]
libata: Pass host flags into the pci helper
This allows parallel scan and the like to be set without having to stop
using the existing full helper functions. This patch merely adds the argument
and fixes up the callers. It doesn't undo the special cases already in the
tree or add any new parallel callers.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Christoph Egger [Fri, 5 Feb 2010 15:26:35 +0000 (16:26 +0100)]
[libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI
The marvell driver comtains a fallback to ahci for the sata ports
which is incorrectly checked as CONFIG_AHCI while the only AHCI config
item is actually called SATA_AHCI (which also sounds sensible
considering it's a fallback for the sata ports).
Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Alan Cox [Mon, 8 Feb 2010 10:04:54 +0000 (10:04 +0000)]
libata: Allow pata_legacy to be built on non-ISA but PCI systems
This is needed for some unsupported hardware setups on strange 64bit
mainboards where crazy stuff has been done like putting flash ata adapters
on the LPC bus, or where the real hardware is hidden/confused.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Sat, 13 Feb 2010 22:43:17 +0000 (17:43 -0500)]
pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets
PDC2026x chipsets need the same treatment as PDC20246 one.
This is completely untested but will hopefully fix UDMA issues
that people have been reporting against pata_pdc202xx_old for
the last couple of years.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Sat, 13 Feb 2010 13:35:53 +0000 (14:35 +0100)]
pata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards
On Monday 04 January 2010 02:30:24 pm Russell King wrote:
> Found the problem - getting rid of the read of the alt status register
> after the command has been written fixes the UDMA CRC errors on write:
>
> @@ -676,7 +676,8 @@ void ata_sff_exec_command(struct ata_port *ap, const struct
> ata_taskfile *tf)
> DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
>
> iowrite8(tf->command, ap->ioaddr.command_addr);
> - ata_sff_pause(ap);
> + ndelay(400);
> +// ata_sff_pause(ap);
> }
> EXPORT_SYMBOL_GPL(ata_sff_exec_command);
>
>
> This rather makes sense. The PDC20247 handles the UDMA part of the
> protocol. It has no way to tell the PDC20246 to wait while it suspends
> UDMA, so that a normal register access can take place - the 246 ploughs
> on with the register access without any regard to the state of the 247.
>
> If the drive immediately starts the UDMA protocol after a write to the
> command register (as it probably will for the DMA WRITE command), then
> we'll be accessing the taskfile in the middle of the UDMA setup, which
> can't be good. It's certainly a violation of the ATA specs.
Fix it by adding custom ->sff_exec_command method for UDMA33 chipsets.
Debugged-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Jeff Garzik [Thu, 4 Feb 2010 06:09:54 +0000 (01:09 -0500)]
[libata] pata_at91: fix backslash-continued string
Noticed and rough patch by Joe Perches.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:17:12 +0000 (18:17 +0100)]
pata_via: store UDMA masks in via_isa_bridges table
* store UDMA masks in via_isa_bridges[] and while at it make "flags"
field to be u8 instead of u16
* convert the driver to use UDMA masks from via_isa_bridges[]
* remove no longer needed VIA_UDMA* defines
Make some minor documentation and CodingStyle fixes while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:17:03 +0000 (18:17 +0100)]
pata_via: fix address setup timings underlocking
Correct via_do_set_mode() documentation while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:46 +0000 (18:16 +0100)]
pata_serverworks: fix error message
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:38 +0000 (18:16 +0100)]
pata_serverworks: fix PIO setup for the second channel
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:16:03 +0000 (18:16 +0100)]
pata_efar: fix secondary port support
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:47 +0000 (18:15 +0100)]
pata_cypress: fix PIO timings underclocking
Timing registers should be programmed with the desired number of clocks
minus one clock.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:38 +0000 (18:15 +0100)]
pata_cs5535: use correct values for PIO1 and PIO2 data timings
There shouldn't be any problems with it as IDE cs5535 host driver
has been using those values for years and they match values given
in the (publicly available) datasheet.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:18 +0000 (18:15 +0100)]
pata_cmd64x: remove unused definitions
s/ARTIM2/ARTTIM23/ in cmd648_bmdma_stop() while at it
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:11 +0000 (18:15 +0100)]
pata_cmd64x: cmd648_bmdma_stop() fix
Clear the primary channel pending interrupt bit
instead of the reserved one.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:15:04 +0000 (18:15 +0100)]
pata_cmd64x: fix handling of address setup timings
Account for the requirements of the DMA mode currently used
by the pair device.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:14:55 +0000 (18:14 +0100)]
pata_cmd64x: fix PIO setup
Fix incorrect handling of recovery clocks value == 16 resulting
in overclocked recovery timings & potentially underclocked active
timings.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:14:05 +0000 (18:14 +0100)]
pata_ali: documentation fixes
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bartlomiej Zolnierkiewicz [Mon, 18 Jan 2010 17:13:57 +0000 (18:13 +0100)]
libata: fix CFA handling in ide_timing_compute()
Use standard cycle timing for CFA PIO5 and PIO6 modes.
Based on commit
74638c8 for IDE subsystem.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Bart Hartgers [Sat, 16 Jan 2010 23:56:54 +0000 (00:56 +0100)]
sata_via: Correctly setup PIO/DMA for pata slave on vt6421.
Before only the timings for master were set. Datasheet can be found
here: ftp://ftp.vtbridge.org/Docs/Storage/DS_VT6421A_100_CCPL.PDF
Surprisingly, a slave drive works without this patch. According to the
datasheet, the controller by default derives the DMA mode from the
Set Features command issued to a drive. Not sure about the PIO
timings, though. The real problem is that the timings for the master
effectively are the ones tuned for the slave. If these support
different UDMA-settings, there is trouble, especially when the slave
supports a higher UDMA than the master.
Anyhow, using the same mechanism for both master and slave seems like
a good idea.
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Robert Hancock [Wed, 20 Jan 2010 05:03:39 +0000 (23:03 -0600)]
libata: make functions/variables static
Make some variables in ahci and a function in pata_pcmcia static, as found
using sparse.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Tue, 19 Jan 2010 01:49:19 +0000 (10:49 +0900)]
libata: implement spurious irq handling for SFF and apply it to piix
Traditional IDE interface sucks in that it doesn't have a reliable IRQ
pending bit, so if the controller raises IRQ while the driver is
expecting it not to, the IRQ won't be cleared and eventually the IRQ
line will be killed by interrupt subsystem. Some controllers have
non-standard mechanism to indicate IRQ pending so that this condition
can be detected and worked around.
This patch adds an optional operation ->sff_irq_check() which will be
called for each port from the ata_sff_interrupt() if an unexpected
interrupt is received. If the operation returns %true,
->sff_check_status() and ->sff_irq_clear() will be cleared for the
port. Note that this doesn't mark the interrupt as handled so it
won't prevent IRQ subsystem from killing the IRQ if this mechanism
fails to clear the spurious IRQ.
This patch also implements ->sff_irq_check() for ata_piix. Note that
this adds slight overhead to shared IRQ operation as IRQs which are
destined for other controllers will trigger extra register accesses to
check whether IDE interrupt is pending but this solves rare screaming
IRQ cases and for some curious reason also helps weird BIOS related
glitch on Samsung n130 as reported in bko#14314.
http://bugzilla.kernel.org/show_bug.cgi?id=14314
* piix_base_ops dropped as suggested by Sergei.
* Spurious IRQ detection doesn't kick in anymore if polling qc is in
progress. This provides less protection but some controllers have
possible data corruption issues if the wrong register is accessed
while a command is in progress.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Johannes Stezenbach <js@sig21.net>
Reported-by: Hans Werner <hwerner4@gmx.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tejun Heo [Tue, 19 Jan 2010 01:46:32 +0000 (10:46 +0900)]
libata: cleanup ata_sff_interrupt()
host->ports[i] is never NULL if i < host->n_ports and non-NULL return
from ata_qc_from_tag() guarantees that the returned qc is active.
Drop unnecessary tests.
Superflous () dropped as suggested by Sergei.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Seth Heasley [Wed, 13 Jan 2010 01:01:28 +0000 (17:01 -0800)]
ata_piix: IDE Mode SATA patch for Intel Cougar Point DeviceIDs
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Seth Heasley [Wed, 13 Jan 2010 01:00:18 +0000 (17:00 -0800)]
ahci: AHCI and RAID mode SATA patch for Intel Cougar Point DeviceIDs
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Shane Huang [Wed, 9 Dec 2009 09:23:04 +0000 (17:23 +0800)]
ahci: Implement SATA AHCI FIS-based switching support
Tested on AMD internal reference board.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 7 Dec 2009 19:39:38 +0000 (23:39 +0400)]
pata_hpt366: remove irrelevant TODO
HPT36x chips just don't have DPLL.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 7 Dec 2009 19:38:11 +0000 (23:38 +0400)]
pata_hpt{37x|3x2n}: improve timing register documentation
Describe UDMA timing bits 18-20 and 21 separately; add a note to bit
31 about it being meaningful for PIO only. Reformat the whole comment,
while at it...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 7 Dec 2009 19:36:15 +0000 (23:36 +0400)]
pata_hpt366: remove redundant code
There's no need to clear the fast interrupt bit in hpt366_set_mode()
since we're doing it in hpt366_init_chipset() already.
While at it, rename 'addr1' local variable to 'addr' and
exclude 'ap->port_no' from its calculation as HPT36x are
single-channel-per-function chips.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 7 Dec 2009 19:30:06 +0000 (23:30 +0400)]
pata_hpt{37x|3x2n}: unify mode programming
As these drivers' set_piomode() and set_dmamode() methods are almost
identical, factor out the common hpt{37x|3x2n}_set_mode() function
to be called by both of them, the same as in 'pata_hpt366' driver.
This results in ~5% decrease in the 'pata_hpt37x' driver binary
size and in ~4% decrease in the 'pata_hpt3x2n' driver binary size
(as measured on x86-32).
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Mon, 7 Dec 2009 19:25:52 +0000 (23:25 +0400)]
pata_hpt3x2n: always stretch UltraDMA timing
The UltraDMA Tss timing must be stretched with ATA clock of 66 MHz, but the
driver only does this when PCI clock is 66 MHz, whereas it always programs
DPLL clock (which is used as the ATA clock) to 66 MHz.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: <stable@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Sergei Shtylyov [Fri, 4 Dec 2009 20:37:43 +0000 (00:37 +0400)]
pata_hpt37x: use ATA_DMA_* constants
Use ATA_DMA_* constants instead of the bare numbers for the BMIDE registers.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Linus Torvalds [Mon, 1 Mar 2010 18:38:09 +0000 (10:38 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (62 commits)
Input: atkbd - release previously reserved keycodes 248 - 254
Input: add KEY_WPS_BUTTON definition
Input: ads7846 - add regulator support
Input: winbond-cir - fix suspend/resume
Input: gamecon - use pr_err() and friends
Input: gamecon - constify some of the setup structures
Input: gamecon - simplify pad type handling
Input: gamecon - simplify coordinate calculation for PSX
Input: gamecon - fix some formatting issues
Input: gamecon - add rumble support for N64 pads
Input: wacom - add device type to device name string
Input: s3c24xx_ts - report touch only when stylus is down
Input: s3c24xx_ts - re-enable IRQ on resume
Input: wacom - constify product features data
Input: wacom - use per-device instance of wacom_features
Input: sh_keysc - enable building on SH-Mobile ARM
Input: wacom - get features from driver info
Input: rotary-encoder - set gpio direction for each requested gpio
Input: sh_keysc - update the driver with mode 6
Input: sh_keysc - switch to using bitmaps
...
Linus Torvalds [Mon, 1 Mar 2010 18:36:22 +0000 (10:36 -0800)]
Merge branch 'acpica' of git://git./linux/kernel/git/lenb/linux-acpi-2.6
* 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
ACPI: replace acpi_integer by u64
ACPICA: Update version to
20100121.
ACPICA: Remove unused uint32_struct type
ACPICA: Disassembler: Remove obsolete "Integer64" field in parse object
ACPICA: Remove obsolete ACPI_INTEGER (acpi_integer) type
ACPICA: Predefined name repair: fix NULL package elements
ACPICA: AcpiGetDevices: Eliminate unnecessary _STA calls
ACPICA: Update all ACPICA copyrights and signons to 2010
ACPICA: Update for new gcc-4 warning options
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:45 +0000 (09:51 -0500)]
DaVinci DM365: Adding support for SPI EEPROM
The DM365 Spectrum Digital EVM comes with an EEPROM
connected to SPI0.
This patch adds support for the SPI EEPROM.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:31 +0000 (09:51 -0500)]
DaVinci DM365: Adding DM365 SPI support
This patch adds SPI init for DM365.
It does the following
1) Initializes SPI0
2) Defines resources to be used by SPI0
3) Adds platform data for SPI0
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:15 +0000 (09:51 -0500)]
DaVinci DM355: Modifications to DM355 SPI support
This patch does the following
1) Minor change to the SPI clocks making it
similar to DM365.
2) Changing the interrupt used by SPI0
3) Adding EDMA resources that can be used by SPI0
4) Adding platform specific data.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Sandeep Paulraj [Mon, 1 Feb 2010 14:51:02 +0000 (09:51 -0500)]
DaVinci: SPI: Adding header file for SPI support.
This patch adds "spi.h" header file that will be used by board and
architecture specific code.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Kevin Hilman [Mon, 11 Jan 2010 16:22:23 +0000 (08:22 -0800)]
davinci: dm646x: CDCE clocks: davinci_clk converted to clk_lookup
Remove unneeded 'struct davinci_clk' wrapper around 'struct
clk_lookup' and use clk_lookup directly.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Linus Torvalds [Mon, 1 Mar 2010 18:14:46 +0000 (10:14 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] wrong attribute of HUB chip written in uv_setup()
[IA64] remove trailing space in messages
[IA64] use asm-generic/scatterlist.h
[IA64] build arch/ia64/kernel/acpi-ext.o when CONFIG_ACPI
[IA64] Only build arch/ia64/kernel/acpi.o when CONFIG_ACPI
[IA64] Remove COMPAT_IA32 support
Linus Torvalds [Mon, 1 Mar 2010 18:06:09 +0000 (10:06 -0800)]
Merge branch 'for-linus' of git://repo.or.cz/cris-mirror
* 'for-linus' of git://repo.or.cz/cris-mirror:
cris: Fixup last users of irq_chip->typename
CRIS v32: Should index be positive?
Linus Torvalds [Mon, 1 Mar 2010 17:16:21 +0000 (09:16 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mst/vhost
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio: fix out of range array access
Linus Torvalds [Mon, 1 Mar 2010 17:15:15 +0000 (09:15 -0800)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits)
ARM: Eliminate decompressor -Dstatic= PIC hack
ARM: 5958/1: ARM: U300: fix inverted clk round rate
ARM: 5956/1: misplaced parentheses
ARM: 5955/1: ep93xx: move timer defines into core.c and document
ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c
ARM: 5953/1: ep93xx: fix broken build of clock.c
ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig
ARM: 5949/1: NUC900 add gpio virtual memory map
ARM: 5948/1: Enable timer0 to time4 clock support for nuc910
ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk
ARM: make_coherent(): fix problems with highpte, part 2
MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself
ARM: 5945/1: ep93xx: include correct irq.h in core.c
ARM: 5933/1: amba-pl011: support hardware flow control
ARM: 5930/1: Add PKMAP area description to memory.txt.
ARM: 5929/1: Add checks to detect overlap of memory regions.
ARM: 5928/1: Change type of VMALLOC_END to unsigned long.
ARM: 5927/1: Make delimiters of DMA area globally visibly.
ARM: 5926/1: Add "Virtual kernel memory..." printout.
ARM: 5920/1: OMAP4: Enable L2 Cache
...
Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Linus Torvalds [Mon, 1 Mar 2010 17:00:29 +0000 (09:00 -0800)]
Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block: (38 commits)
block: don't access jiffies when initialising io_context
cfq: remove 8 bytes of padding from cfq_rb_root on 64 bit builds
block: fix for "Consolidate phys_segment and hw_segment limits"
cfq-iosched: quantum check tweak
blktrace: perform cleanup after setup error
blkdev: fix merge_bvec_fn return value checks
cfq-iosched: requests "in flight" vs "in driver" clarification
cciss: Fix problem with scatter gather elements in the scsi half of the driver
cciss: eliminate unnecessary pointer use in cciss scsi code
cciss: do not use void pointer for scsi hba data
cciss: factor out scatter gather chain block mapping code
cciss: fix scatter gather chain block dma direction kludge
cciss: simplify scatter gather code
cciss: factor out scatter gather chain block allocation and freeing
cciss: detect bad alignment of scsi commands at build time
cciss: clarify command list padding calculation
cfq-iosched: rethink seeky detection for SSDs
cfq-iosched: rework seeky detection
block: remove padding from io_context on 64bit builds
block: Consolidate phys_segment and hw_segment limits
...
Linus Torvalds [Mon, 1 Mar 2010 16:58:44 +0000 (08:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (252 commits)
ASoC: Check progress when reporting periods from i.MX FIQ handler
ASoC: Remove a unused variables from i.MX FIQ runtime data
ALSA: hda - Add/fix ALC269 FSC and Quanta models
ALSA: hda - Add ALC670 codec support
OMAP4: PMIC: Add support for twl6030 codec
ALSA: hda - remove unnecessary msleep on power state transitions
usb/gadget/{f_audio,gmidi}.c: follow recent changes in audio.h
ASoC: fsi: Modify over/under run error settlement
ASoC: OMAP4: Add McPDM platform driver
ASoC: OMAP4: Add support for McPDM
ASoC: OMAP: data_type and sync_mode configurable in audio dma
ALSA: hda - Add missing description in HD-Audio-Models.txt
ALSA: add support for Macbook Air 2,1 internal speaker
ALSA: usbaudio: consolidate header files
ALSA: usbmixer: bail out early when parsing audio class v2 descriptors
ALSA: usbaudio: implement basic set of class v2.0 parser
ALSA: usbaudio: introduce new types for audio class v2
ALSA: usbaudio: parse USB descriptors with structs
ALSA: hda - enable snoop for Intel Cougar Point
ALSA: hda - Remove identical definitions for macmini3 model
...
Linus Torvalds [Mon, 1 Mar 2010 16:51:52 +0000 (08:51 -0800)]
Merge branches 'futexes-for-linus', 'irq-core-for-linus' and 'bkl-drivers-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'futexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
futex: Protect pid lookup in compat code with RCU
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
genirq: Fix documentation of default chip disable()
* 'bkl-drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
nvram: Drop the BKL from nvram_open()
Linus Torvalds [Mon, 1 Mar 2010 16:48:25 +0000 (08:48 -0800)]
Merge branch 'timers-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
posix-timers.c: Don't export local functions
clocksource: start CMT at clocksource resume
clocksource: add suspend callback
clocksource: add argument to resume callback
ntp: Cleanup xtime references in ntp.c
ntp: Make time_esterror and time_maxerror static
Randy Dunlap [Mon, 1 Mar 2010 01:32:45 +0000 (17:32 -0800)]
scsi.c: add missing kernel-doc notation for new VPD parameters
Add missing kernel-doc notation for new function parameters:
Warning(drivers/scsi/scsi.c:1031): No description found for parameter 'buf'
Warning(drivers/scsi/scsi.c:1031): No description found for parameter 'buf_len'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yinghai Lu [Sun, 28 Feb 2010 23:49:39 +0000 (15:49 -0800)]
pci: don't reassign to ROM res if it is not going to be enabled
A ROM resource that doesn't fit should not cause us to try to re-assign
all the bus resources. Nobody generally cares, and re-assigning is
going to just cause way more troubles than it tries to solve.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tomi Valkeinen [Mon, 1 Mar 2010 11:52:10 +0000 (13:52 +0200)]
OMAP: DSS2: Taal: Fix ESD check
Using taal_enable_te() when DSI bus was locked caused a deadlock.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Takashi Iwai [Mon, 1 Mar 2010 11:38:59 +0000 (12:38 +0100)]
Merge branch 'topic/asoc' into for-linus
Takashi Iwai [Mon, 1 Mar 2010 11:38:54 +0000 (12:38 +0100)]
Merge branch 'topic/hda' into for-linus
Takashi Iwai [Mon, 1 Mar 2010 11:38:49 +0000 (12:38 +0100)]
Merge branch 'topic/misc' into for-linus
Takashi Iwai [Mon, 1 Mar 2010 11:38:39 +0000 (12:38 +0100)]
Merge branch 'fix/misc' into for-linus
Ville Syrjälä [Tue, 23 Feb 2010 22:36:26 +0000 (23:36 +0100)]
OMAP: DSS2: OMAPFB: Constify some function parameters
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Ville Syrjälä [Tue, 23 Feb 2010 22:36:25 +0000 (23:36 +0100)]
OMAP: DSS2: OMAPFB: install omapfb.h
omapfb has several custom ioctls so user space needs
the header in order to utilize them.
Signed-off-by: Ville Syrjälä <ville.syrjala@nokia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Richard Kennedy [Mon, 1 Mar 2010 09:57:22 +0000 (10:57 +0100)]
block: don't access jiffies when initialising io_context
As the comment says the initial value of last_waited is never used, so
there is no need to initialise it with the current jiffies. Jiffies is
hot enough without accessing it for no reason.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Richard Kennedy [Mon, 1 Mar 2010 09:50:20 +0000 (10:50 +0100)]
cfq: remove 8 bytes of padding from cfq_rb_root on 64 bit builds
Reorder cfq_rb_root to remove 8 bytes of padding on 64 bit builds.
Consequently removing 56 bytes from cfq_group and 64 bytes from
cfq_data.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Stephen Rothwell [Mon, 1 Mar 2010 08:21:01 +0000 (19:21 +1100)]
block: fix for "Consolidate phys_segment and hw_segment limits"
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Shaohua Li [Mon, 1 Mar 2010 08:20:54 +0000 (09:20 +0100)]
cfq-iosched: quantum check tweak
Currently a queue can only dispatch up to 4 requests if there are other queues.
This isn't optimal, device can handle more requests, for example, AHCI can
handle 31 requests. I can understand the limit is for fairness, but we could
do a tweak: if the queue still has a lot of slice left, sounds we could
ignore the limit. Test shows this boost my workload (two thread randread of
a SSD) from 78m/s to 100m/s.
Thanks for suggestions from Corrado and Vivek for the patch.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
David S. Miller [Mon, 1 Mar 2010 08:02:23 +0000 (00:02 -0800)]
sparc: Support show_unhandled_signals.
Just faults right now, will add other traps later.
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Torokhov [Mon, 1 Mar 2010 07:55:20 +0000 (23:55 -0800)]
Merge branch 'next' into for-linus
David S. Miller [Mon, 1 Mar 2010 03:23:06 +0000 (19:23 -0800)]
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/firmware/iscsi_ibft.c
Vladislav Zolotarov [Sun, 28 Feb 2010 00:12:02 +0000 (00:12 +0000)]
bnx2x: Tx barriers and locks
[Resending with the proper subject. Sorry for the mess. ]
This patch is based on the RFC of Stanislaw Gruszka.
More specifically it fixes two possible races:
- One, described by Stanislaw, may lead to permanent disabling of the Tx
queue.
This is fixed by adding the smp_wmb() to propagate the BD consumer
change towards the memory.
- Second may lead to bnx2x_start_xmit() returning NETDEV_TX_BUSY.
This is fixed by taking a tx_lock() before rechecking the number of
available Tx BDs.
thanks,
vlad
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric W. Biederman [Sun, 28 Feb 2010 01:20:36 +0000 (01:20 +0000)]
scm: Only support SCM_RIGHTS on unix domain sockets.
We use scm_send and scm_recv on both unix domain and
netlink sockets, but only unix domain sockets support
everything required for file descriptor passing,
so error if someone attempts to pass file descriptors
over netlink sockets.
Cc: stable@kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Sun, 28 Feb 2010 19:00:55 +0000 (11:00 -0800)]
Merge branch 'x86-uv-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, uv: Remove recursion in uv_heartbeat_enable()
x86, uv: uv_global_gru_mmr_address() macro fix
x86, uv: Add serial number parameter to uv_bios_get_sn_info()
Linus Torvalds [Sun, 28 Feb 2010 18:59:44 +0000 (10:59 -0800)]
Merge branch 'x86-ptrace-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, ptrace: Remove set_stopped_child_used_math() in [x]fpregs_set
x86, ptrace: Simplify xstateregs_get()
ptrace: Fix ptrace_regset() comments and diagnose errors specifically
parisc: Disable CONFIG_HAVE_ARCH_TRACEHOOK
ptrace: Add support for generic PTRACE_GETREGSET/PTRACE_SETREGSET
x86, ptrace: regset extensions to support xstate
Linus Torvalds [Sun, 28 Feb 2010 18:59:18 +0000 (10:59 -0800)]
Merge branch 'x86-pci-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'x86-pci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Enable NMI on all cpus on UV
vgaarb: Add user selectability of the number of GPUS in a system
vgaarb: Fix VGA arbiter to accept PCI domains other than 0
x86, uv: Update UV arch to target Legacy VGA I/O correctly.
pci: Update pci_set_vga_state() to call arch functions
Dmitry Monakhov [Sat, 27 Feb 2010 17:35:13 +0000 (20:35 +0300)]
blktrace: perform cleanup after setup error
Currently even if BLKTRACESETUP ioctl has failed user must call
BLKTRACETEARDOWN to be shure what all staff was cleaned, which
is contr-intuitive.
Let's setup ioctl make necessery cleanup by it self.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Dmitry Monakhov [Sat, 27 Feb 2010 17:35:12 +0000 (20:35 +0300)]
blkdev: fix merge_bvec_fn return value checks
merge_bvec_fn() returns bvec->bv_len on success. So we have to check
against this value. But in case of fs_optimization merge we compare
with wrong value. This patch must be included in
b428cd6da7e6559aca69aa2e3a526037d3f20403
But accidentally i've forgot to add this in the initial patch.
To make things straight let's replace all such checks.
In fact this makes code easy to understand.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>