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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (21 commits)
[S390] dasd: fix race condition in resume code
[S390] Add EX_TABLE for addressing exception in usercopy functions.
[S390] 64-bit register support for 31-bit processes
[S390] hibernate: Use correct place for CPU address in lowcore
[S390] pm: ignore time spend in suspended state
[S390] zcrypt: Improve some comments
[S390] zcrypt: Fix sparse warning.
[S390] perf_counter: fix vdso detection
[S390] ftrace: drop nmi protection
[S390] compat: fix truncate system call wrapper
[S390] Provide arch specific mdelay implementation.
[S390] Fix enabled udelay for short delays.
[S390] cio: allow setting boxed devices offline
[S390] cio: make not operational handling consistent
[S390] cio: make disconnected handling consistent
[S390] Fix memory leak in /proc/cio_ignore
[S390] cio: channel path memory leak
[S390] module: fix memory leak in s390 module loader
[S390] Enable kmemleak on s390.
[S390] 3270 console build fix
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (32 commits)
USB: serial: no unnecessary GFP_ATOMIC in oti6858
USB: serial: fix race between unthrottle and completion handler in visor
USB: serial: fix assumption that throttle/unthrottle cannot sleep
USB: serial: fix race between unthrottle and completion handler in symbolserial
USB: serial: fix race between unthrottle and completion handler in opticon
USB: ehci: Fix isoc scheduling boundary checking.
USB: storage: When a device returns no sense data, call it a Hardware Error
USB: small fix in error case of suspend in generic usbserial code
USB: visor: fix trivial accounting bug in visor driver
USB: Fix throttling in generic usbserial driver
USB: cp210x: Add support for the DW700 UART
USB: ipaq: fix oops when device is plugged in
USB: isp1362: fix build warnings on 64-bit systems
USB: gadget: imx_udc: Use resource size
USB: storage: iRiver P7 UNUSUAL_DEV patch
USB: musb: make HAVE_CLK support optional
USB: xhci: Fix dropping endpoints from the xHC schedule.
USB: xhci: Don't wait for a disable slot cmd when HC dies.
USB: xhci: Handle canceled URBs when HC dies.
USB: xhci: Stop debugging polling loop when HC dies.
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After m68k's task_thread_info() doesn't refer to current,
it's possible to remove sched.h from interrupt.h and not break m68k!
Many thanks to Heiko Carstens for allowing this.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits)
[SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create
[SCSI] st: fix possible memory use after free after MTSETBLK ioctl
[SCSI] be2iscsi: Moving to pci_pools v3
[SCSI] libiscsi: iscsi_session_setup to allow for private space
[SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver
[SCSI] zfcp: Fix hang when offlining device with offline chpid
[SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid
[SCSI] zfcp: Fix oops during shutdown of offline device
[SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation
[SCSI] zfcp: correctly initialize unchained requests
[SCSI] mpt2sas: Bump version 02.100.03.00
[SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT
[SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK.
[SCSI] mpt2sas: Call init_completion on a per request basis.
[SCSI] mpt2sas: Target Reset will be issued from Interrupt context.
[SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM
[SCSI] mpt2sas: Copyright change to 2009.
[SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers.
[SCSI] mpt2sas: Update driver to MPI2 REV K headers.
[SCSI] bfa: Brocade BFA FC SCSI driver
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This patch (as1295) fixes a recently-added bug in the USB serial core.
If certain kinds of errors occur during probing, the core may call a
serial driver's release method without previously calling the attach
method. This causes some drivers (io_ti in particular) to perform an
invalid memory access.
The patch adds a new flag to keep track of whether or not attach has
been called.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Jean-Denis Girard <jd.girard@sysnux.pf>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Since the beginnings in aafe4dbed0bf6cbdb2e9f03e1d42f8a540d8541d
("asm-generic: add generic versions of common headers") the generic
version of <asm/hardirq.h> defined __softirq_pending as unsigned long.
Which is different from other architectures for no apparent good reason
and was causing the following warning:
kernel/time/tick-sched.c: In function 'tick_nohz_stop_sched_tick':
kernel/time/tick-sched.c:261: warning: format '%02x' expects type 'unsigned int', but argument 2 has type 'long unsigned int'
Reported and initial patch by Wu Zhangjin <wuzhangjin@gmail.com>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[ Arnd points out that we really should make sure parisc and alpha are
ok with this, since they have also been converted to use the generic
hardirq.h file. But neither seems to use it, although parisc does
build a IRQSTAT_SIRQ_PEND #define into asm-offsets - but that also
appears unused.. - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: i8042 - print debug data when testing AUX IRQ delivery
Input: libps2 - fix dependancy on i8042
Input: fix rx51 board keymap
Input: ad7879 - pass up error codes from probe functions
Input: xpad - add BigBen Interactive XBOX 360 Controller
Input: rotary_encoder - fix relative axis support
Input: sparkspkr - move remove() functions to .devexit.text
Input: wistron_btns - add DMI entry for Medion WIM2030 laptop
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_atp867x: add Power Management support
pata_atp867x: PIO support fixes
pata_atp867x: clarifications in timings calculations and cable detection
pata_atp867x: fix it to not claim MWDMA support
libata: fix incorrect link online check during probe
ahci: filter FPDMA non-zero offset enable for Aspire 3810T
libata: make gtf_filter per-dev
libata: implement more acpi filtering options
libata: cosmetic updates
ahci: display all AHCI 1.3 HBA capability flags (v2)
pata_ali: trivial fix of a very frequent spelling mistake
ahci: disable 64bit DMA by default on SB600s
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
futex: fix requeue_pi key imbalance
futex: Fix typo in FUTEX_WAIT/WAKE_BITSET_PRIVATE definitions
rcu: Place root rcu_node structure in separate lockdep class
rcu: Make hot-unplugged CPU relinquish its own RCU callbacks
rcu: Move rcu_barrier() to rcutree
futex: Move exit_pi_state() call to release_mm()
futex: Nullify robust lists after cleanup
futex: Fix locking imbalance
panic: Fix panic message visibility by calling bust_spinlocks(0) before dying
rcu: Replace the rcu_barrier enum with pointer to call_rcu*() function
rcu: Clean up code based on review feedback from Josh Triplett, part 4
rcu: Clean up code based on review feedback from Josh Triplett, part 3
rcu: Fix rcu_lock_map build failure on CONFIG_PROVE_LOCKING=y
rcu: Clean up code to address Ingo's checkpatch feedback
rcu: Clean up code based on review feedback from Josh Triplett, part 2
rcu: Clean up code based on review feedback from Josh Triplett
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, pci: Correct spelling in a comment
x86: Simplify bound checks in the MTRR code
x86: EDAC: carve out AMD MCE decoding logic
initcalls: Add early_initcall() for modules
x86: EDAC: MCE: Fix MCE decoding callback logic
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: user local buffer variable for trace branch tracer
tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c
ftrace: check for failure for all conversions
tracing: correct module boundaries for ftrace_release
tracing: fix transposed numbers of lock_depth and preempt_count
trace: Fix missing assignment in trace_ctxwake_*
tracing: Use free_percpu instead of kfree
tracing: Check total refcount before releasing bufs in profile_enable failure
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sparc-perf-events-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
mm, perf_event: Make vmalloc_user() align base kernel virtual address to SHMLBA
perf_event: Provide vmalloc() based mmap() backing
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf_events: Make ABI definitions available to userspace
perf tools: elf_sym__is_function() should accept "zero" sized functions
tracing/syscalls: Use long for syscall ret format and field definitions
perf trace: Update eval_flag() flags array to match interrupt.h
perf trace: Remove unused code in builtin-trace.c
perf: Propagate term signal to child
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git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (24 commits)
drm/radeon/kms: fix vline register for second head.
drm/r600: avoid assigning vb twice in blit code
drm/radeon: use list_for_each_entry instead of list_for_each
drm/radeon/kms: Fix AGP support for R600/RV770 family (v2)
drm/radeon/kms: Fallback to non AGP when acceleration fails to initialize (v2)
drm/radeon/kms: Fix RS600/RV515/R520/RS690 IRQ
drm/radeon: Fix setting of bits
drm/ttm: fix refcounting in ttm global code.
drm/fb: add more correct 8/16/24/32 bpp fb support.
drm/fb: add setcmap and fix 8-bit support.
drm/radeon/kms: respect single crtc cards, only create one crtc. (v2)
drm: Delete the DRM_DEBUG_KMS in drm_mode_cursor_ioctl
drm/radeon/kms: add support for "Surround View"
drm/radeon/kms: Fix irq handling on AVIVO hw
drm/radeon/kms: R600/RV770 remove dead code and print message for wrong BIOS
drm/radeon/kms: Fix R600/RV770 disable acceleration path
drm/radeon/kms: Fix R600/RV770 startup path & reset
drm/radeon/kms: Fix R600 write back buffer
drm/radeon/kms: Remove old init path as no hw use it anymore
drm/radeon/kms: Convert RS600 to new init path
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
ethoc: limit the number of buffers to 128
ethoc: use system memory as buffer
ethoc: align received packet to make IP header at word boundary
ethoc: fix buffer address mapping
ethoc: fix typo to compute number of tx descriptors
au1000_eth: Duplicate test of RX_OVERLEN bit in update_rx_stats()
netxen: Fix Unlikely(x) > y
pasemi_mac: ethtool get settings fix
add maintainer for network drop monitor kernel service
tg3: Fix phylib locking strategy
rndis_host: support ETHTOOL_GPERMADDR
ipv4: arp_notify address list bug
gigaset: add kerneldoc comments
gigaset: correct debugging output selection
gigaset: improve error recovery
gigaset: fix device ERROR response handling
gigaset: announce if built with debugging
gigaset: handle isoc frame errors more gracefully
gigaset: linearize skb
gigaset: fix reject/hangup handling
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conflict in radeon since new init path merged with vga arb code.
Conflicts:
drivers/gpu/drm/radeon/radeon.h
drivers/gpu/drm/radeon/radeon_asic.h
drivers/gpu/drm/radeon/radeon_device.c
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When the module is about the unload we release its call records.
The ftrace_release function was given wrong values representing
the module core boundaries, thus not releasing its call records.
Plus making ftrace_release function module specific.
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <1254934835-363-3-git-send-email-jolsa@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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Looks like a typo, FUTEX_WAKE_BITS should be FUTEX_WAIT_BITSET.
Signed-off-by: Anton Blanchard <anton@samba.org>
LKML-Reference: <20091007001358.GE16073@kryten>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Some architectures such as Sparc, ARM and MIPS (basically
everything with flush_dcache_page()) need to deal with dcache
aliases by carefully placing pages in both kernel and user maps.
These architectures typically have to use vmalloc_user() for this.
However, on other architectures, vmalloc() is not needed and has
the downsides of being more restricted and slower than regular
allocations.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: David Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1254830228.21044.272.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
LKML-Reference: <200910061138.n96BcqkJ004709@int-mx03.intmail.prod.int.phx2.redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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From: Heiko Carstens <heiko.carstens@de.ibm.com>
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The original driver was written with the KEY() macro defined as (col,
row) instead of (row, col) as defined by the matrix keypad
infrastructure. So the keymap was defined accordingly. Since the
driver that was merged upstream uses the matrix keypad infrastructure,
modify the keymap accordingly.
While we are at it, fix the comments in twl4030.h and define
PERSISTENT_KEY as (r,c) instead of (c, r)
Tested on a RX51 (N900) device.
Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Add ->gtf_filter to ata_device and set it to ata_acpi_gtf_filter when
initializing ata_link. This is to allow quirks which apply different
gtf filters.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Currently libata-acpi can only filter DIPM among SATA feature enables
via _GTF. This patch adds the capability to filter out FPDMA non-zero
offset, in-order guarantee and auto-activation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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We're about to add more SATA_* and ATA_ACPI_FILTER_* constants.
Reformat them in preparation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The previous patches had some unwanted side effects, I've fixed
the lack of 32bpp working, and fixed up 16bpp so it should also work.
this also adds the interface to allow the driver to set a preferred
console depth so for example low memory rn50 can set it to 8bpp.
It also catches 24bpp on cards that can't do it and forces 32bpp.
Tested on r100/r600/i945.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Whitespace fixes, updated comments, and trivial code movement.
o Fix whitespace error in RCU_HEAD_INIT()
o Move "So where is rcu_write_lock()" comment so that it does
not come between the rcu_read_unlock() header comment and
the rcu_read_unlock() definition.
o Move the module_param statements for blimit, qhimark, and
qlowmark to immediately follow the corresponding
definitions.
o In __rcu_offline_cpu(), move the assignment to rdp_me
inside the "if" statement, given that rdp_me is not used
outside of that "if" statement.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: laijs@cn.fujitsu.com
Cc: dipankar@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: mathieu.desnoyers@polymtl.ca
Cc: josh@joshtriplett.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: peterz@infradead.org
Cc: rostedt@goodmis.org
Cc: Valdis.Kletnieks@vt.edu
Cc: dhowells@redhat.com
LKML-Reference: <12541491931164-git-send-email->
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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The following user-space program fails to compile:
#include <linux/socket.h>
#include <sys/socket.h>
int main() { return 0; }
The reason is that <linux/socket.h> tests __GLIBC__ to decide whether it
should define various structures and macros that are now defined for
user-space by <sys/socket.h>, but __GLIBC__ is not defined if no libc
headers have yet been included.
It seems safe to drop support for libc 5 now.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Bastian Blank <waldi@debian.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds support for the setcmap api and fixes the 8bpp
support at least on radeon hardware. It adds a new load_lut
hook which can be called once the color map is setup.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Also add single crtc for RN50 chips.
changes in v2:
fix vblank init to respect single crtc flag
fix r100 mode bandwidth to respect single crtc flag
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block: (41 commits)
Revert "Seperate read and write statistics of in_flight requests"
cfq-iosched: don't delay async queue if it hasn't dispatched at all
block: Topology ioctls
cfq-iosched: use assigned slice sync value, not default
cfq-iosched: rename 'desktop' sysfs entry to 'low_latency'
cfq-iosched: implement slower async initiate and queue ramp up
cfq-iosched: delay async IO dispatch, if sync IO was just done
cfq-iosched: add a knob for desktop interactiveness
Add a tracepoint for block request remapping
block: allow large discard requests
block: use normal I/O path for discard requests
swapfile: avoid NULL pointer dereference in swapon when s_bdev is NULL
fs/bio.c: move EXPORT* macros to line after function
Add missing blk_trace_remove_sysfs to be in pair with blk_trace_init_sysfs
cciss: fix build when !PROC_FS
block: Do not clamp max_hw_sectors for stacking devices
block: Set max_sectors correctly for stacking devices
cciss: cciss_host_attr_groups should be const
cciss: Dynamically allocate the drive_info_struct for each logical drive.
cciss: Add usage_count attribute to each logical drive in /sys
...
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This reverts commit a9327cac440be4d8333bba975cbbf76045096275.
Corrado Zoccolo <czoccolo@gmail.com> reports:
"with 2.6.32-rc1 I started getting the following strange output from
"iostat -kx 2":
Linux 2.6.31bisect (et2) 04/10/2009 _i686_ (2 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
10,70 0,00 3,16 15,75 0,00 70,38
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 18,22 0,00 0,67 0,01 14,77 0,02
43,94 0,01 10,53 39043915,03 2629219,87
sdb 60,89 9,68 50,79 3,04 1724,43 50,52
65,95 0,70 13,06 488437,47 2629219,87
avg-cpu: %user %nice %system %iowait %steal %idle
2,72 0,00 0,74 0,00 0,00 96,53
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0,00 0,00 0,00 0,00 0,00 0,00
0,00 0,00 0,00 0,00 100,00
sdb 0,00 0,00 0,00 0,00 0,00 0,00
0,00 0,00 0,00 0,00 100,00
avg-cpu: %user %nice %system %iowait %steal %idle
6,68 0,00 0,99 0,00 0,00 92,33
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0,00 0,00 0,00 0,00 0,00 0,00
0,00 0,00 0,00 0,00 100,00
sdb 0,00 0,00 0,00 0,00 0,00 0,00
0,00 0,00 0,00 0,00 100,00
avg-cpu: %user %nice %system %iowait %steal %idle
4,40 0,00 0,73 1,47 0,00 93,40
Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s
avgrq-sz avgqu-sz await svctm %util
sda 0,00 0,00 0,00 0,00 0,00 0,00
0,00 0,00 0,00 0,00 100,00
sdb 0,00 4,00 0,00 3,00 0,00 28,00
18,67 0,06 19,50 333,33 100,00
Global values for service time and utilization are garbage. For
interval values, utilization is always 100%, and service time is
higher than normal.
I bisected it down to:
[a9327cac440be4d8333bba975cbbf76045096275] Seperate read and write
statistics of in_flight requests
and verified that reverting just that commit indeed solves the issue
on 2.6.32-rc1."
So until this is debugged, revert the bad commit.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Not all users of the topology information want to use libblkid. Provide
the topology information through bdev ioctls.
Also clarify sector size comments for existing BLK ioctls.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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This slowly ramps up the async queue depth based on the time
passed since the sync IO, and doesn't allow async at all until
a sync slice period has passed.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (46 commits)
cnic: Fix NETDEV_UP event processing.
uvesafb/connector: Disallow unpliviged users to send netlink packets
pohmelfs/connector: Disallow unpliviged users to configure pohmelfs
dst/connector: Disallow unpliviged users to configure dst
dm/connector: Only process connector packages from privileged processes
connector: Removed the destruct_data callback since it is always kfree_skb()
connector/dm: Fixed a compilation warning
connector: Provide the sender's credentials to the callback
connector: Keep the skb in cn_callback_data
e1000e/igb/ixgbe: Don't report an error if devices don't support AER
net: Fix wrong sizeof
net: splice() from tcp to pipe should take into account O_NONBLOCK
net: Use sk_mark for routing lookup in more places
sky2: irqname based on pci address
skge: use unique IRQ name
IPv4 TCP fails to send window scale option when window scale is zero
net/ipv4/tcp.c: fix min() type mismatch warning
Kconfig: STRIP: Remove stale bits of STRIP help text
NET: mkiss: Fix typo
tg3: Remove prev_vlan_tag from struct tx_ring_info
...
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This patch contains changes that allow iscsi_session_setup
to allocate private space for LLD's
Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Disks formatted with DIF Type 2 reject READ/WRITE 6/10/12/16 commands
when protection is enabled. Only the 32-byte variants are supported.
Implement support for issusing 32-byte READ/WRITE and enable Type 2
drives in the protection type detection logic.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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So far we have only issued DIF commands if CONFIG_BLK_DEV_INTEGRITY is
enabled. However, communication between initiator and target should be
independent of protection information DMA. There are DIF-only host
adapters coming out that will be able to take advantage of this.
Move the relevant DIF bits to sd.c.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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The checksum format is orthogonal to whether the protection information
is being passed on beyond the HBA or not. It is perfectly valid to use
a non-T10 CRC with WRITE_STRIP and READ_INSERT.
Consequently it no longer makes sense to explicitly refer to the
conversion in the protection operation. Update sd_dif and lpfc
accordingly.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Ihab Hamadi <Ihab.Hamadi@Emulex.Com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
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Complete the early_initcall() API by making it available in modules
too. To be used by the EDAC/MCE code.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <andi@firstfloor.org>
LKML-Reference: <20091002132321.GC28682@aftab>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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This patch clean up/fixes for memcg's uncharge soft limit path.
Problems:
Now, res_counter_charge()/uncharge() handles softlimit information at
charge/uncharge and softlimit-check is done when event counter per memcg
goes over limit. Now, event counter per memcg is updated only when
memory usage is over soft limit. Here, considering hierarchical memcg
management, ancesotors should be taken care of.
Now, ancerstors(hierarchy) are handled in charge() but not in uncharge().
This is not good.
Prolems:
1. memcg's event counter incremented only when softlimit hits. That's bad.
It makes event counter hard to be reused for other purpose.
2. At uncharge, only the lowest level rescounter is handled. This is bug.
Because ancesotor's event counter is not incremented, children should
take care of them.
3. res_counter_uncharge()'s 3rd argument is NULL in most case.
ops under res_counter->lock should be small. No "if" sentense is better.
Fixes:
* Removed soft_limit_xx poitner and checks in charge and uncharge.
Do-check-only-when-necessary scheme works enough well without them.
* make event-counter of memcg incremented at every charge/uncharge.
(per-cpu area will be accessed soon anyway)
* All ancestors are checked at soft-limit-check. This is necessary because
ancesotor's event counter may never be modified. Then, they should be
checked at the same time.
Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The asm-generic/gpio.h header uses the might_sleep() macro but doesn't
include the header for it, so any source code that might include
linux/gpio.h before linux/kernel.h can easily lead to a build failure.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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[akpm@linux-foundation.org: fix KVM]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Since 2.6.31 now has request-based device-mapper, it's useful to have
a tracepoint for request-remapping as well as bio-remapping.
This patch adds a tracepoint for request-remapping, trace_block_rq_remap().
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Alasdair G Kergon <agk@redhat.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Currently we set the bio size to the byte equivalent of the blocks to
be trimmed when submitting the initial DISCARD ioctl. That means it
is subject to the max_hw_sectors limitation of the HBA which is
much lower than the size of a DISCARD request we can support.
Add a separate max_discard_sectors tunable to limit the size for discard
requests.
We limit the max discard request size in bytes to 32bit as that is the
limit for bio->bi_size. This could be much larger if we had a way to pass
that information through the block layer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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prepare_discard_fn() was being called in a place where memory allocation
was effectively impossible. This makes it inappropriate for all but
the most trivial translations of Linux's DISCARD operation to the block
command set. Additionally adding a payload there makes the ownership
of the bio backing unclear as it's now allocated by the device driver
and not the submitter as usual.
It is replaced with QUEUE_FLAG_DISCARD which is used to indicate whether
the queue supports discard operations or not. blkdev_issue_discard now
allocates a one-page, sector-length payload which is the right thing
for the common ATA and SCSI implementations.
The mtd implementation of prepare_discard_fn() is replaced with simply
checking for the request being a discard.
Largely based on a previous patch from Matthew Wilcox <matthew@wil.cx>
which did the prepare_discard_fn but not the different payload allocation
yet.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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