26 Apr, 2008
12 commits
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* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: Add default-on trigger
leds: Document the context brightness_set needs
leds: Add new driver for the LEDs on the Freecom FSG-3
leds: Add support to leds with readable status
leds: enable support for blink_set() platform hook in leds-gpio
leds: Cleanup various whitespace and code style issues
leds: disable triggers on brightness set
leds: Add mail LED support for "Clevo D400P" -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86-pat:
generic: add ioremap_wc() interface wrapper
/dev/mem: make promisc the default
pat: cleanups
x86: PAT use reserve free memtype in mmap of /dev/mem
x86: PAT phys_mem_access_prot_allowed for dev/mem mmap
x86: PAT avoid aliasing in /dev/mem read/write
devmem: add range_is_allowed() check to mmap of /dev/mem
x86: introduce /dev/mem restrictions with a config option -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_bf54x: decrease count first.
sata_mv: re-enable hotplug, update TODO list
sata_mv: leave SError bits untouched in mv_err_intr
sata_mv: more interrupt handling rework
sata_mv: tidy host controller interrupt handling
sata_mv: simplify request/response queue handling
sata_mv: simplify freeze/thaw bit-shift calculations
sata_mv mask all interrupt coalescing bits
sata_mv more cosmetics
ata_piix: add Asus Eee 701 controller to short cable list
libata-eh set tf flags in NCQ EH result_tf
make sata_set_spd_needed() static
make sata_print_link_status() static
libata-acpi.c: remove unneeded #if's
sata_nv: make hardreset return -EAGAIN on success
ahci: retry enabling AHCI a few times before spitting out WARN_ON()
libata: make WARN_ON conditions in ata_sff_hsm_move() more strict
ATA/IDE: fix platform driver hotplug/coldplug
sata_sis: SCR accessors return -EINVAL when requested SCR isn't available
libata: functions with definition should not be extern -
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (120 commits)
usb: don't update devnum for wusb devices
wusb: make ep0_reinit available for modules
wusb: devices dont use a set address
wusb: teach choose_address() about wireless devices
wusb: add link wusb-usb device
wusb: add authenticathed bit to usb_dev
USB: remove unnecessary type casting of urb->context
usb serial: more fixes and groundwork for tty changes
USB: replace remaining __FUNCTION__ occurrences
USB: usbfs: export the URB_NO_INTERRUPT flag to userspace
USB: fix compile problems in ehci-hcd
USB: ehci: qh_completions cleanup and bugfix
USB: cdc-acm: signedness fix
USB: add documentation about callbacks
USB: don't explicitly reenable root-hub status interrupts
USB: OHCI: turn off RD when remote wakeup is disabled
USB: HCDs use the do_remote_wakeup flag
USB: g_file_storage: ignore bulk-out data after invalid CBW
USB: serial: remove endpoints setting checks from core and header
USB: serial: remove unneeded number endpoints settings
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (40 commits)
Input: wacom - add support for Cintiq 20WSX
Input: ucb1400_ts - IRQ probe fix
Input: at32psif - update MODULE_AUTHOR with new email
Input: mac_hid - add lockdep annotation to emumousebtn
Input: i8042 - fix incorrect usage of strncpy and strncat
Input: bf54x-keys - add infrastructure for keypad wakeups
Input: add MODULE_ALIAS() to hotpluggable platform modules
Input: drivers/char/keyboard.c - use time_after
Input: fix ordering in joystick Makefile
Input: wm97xx-core - support use as a wakeup source
Input: wm97xx-core - use IRQF_SAMPLE_RANDOM
Input: wm97xx-core - only schedule interrupt handler if not already scheduled
Input: add Zhen Hua driver
Input: aiptek - add support for Genius G-PEN 560 tablet
Input: wacom - implement suspend and autosuspend
Input: xpad - set proper buffer length for outgoing requests
Input: omap-keypad - fix build warning
Input: gpio_keys - irq handling cleanup
Input: add PS/2 serio driver for AVR32 devices
Input: put ledstate in the keyboard notifier
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (24 commits)
dm crypt: add documentation
dm: remove md argument from specific_minor
dm table: remove unused dm_create_error_table
dm table: drop void suspend_targets return
dm: unplug queues in threads
dm raid1: use timer
dm: move include files
dm kcopyd: rename
dm: expose macros
dm kcopyd: remove redundant client counting
dm kcopyd: private mempool
dm kcopyd: per device
dm log: make module use tracking internal
dm log: move register functions
dm log: clean interface
dm kcopyd: clean interface
dm io: clean interface
dm io: rename error to error_bits
dm snapshot: store pointer to target instance
dm log: move dirty region log code into separate module
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-xen-next: (52 commits)
xen: add balloon driver
xen: allow compilation with non-flat memory
xen: fold xen_sysexit into xen_iret
xen: allow set_pte_at on init_mm to be lockless
xen: disable preemption during tlb flush
xen pvfb: Para-virtual framebuffer, keyboard and pointer driver
xen: Add compatibility aliases for frontend drivers
xen: Module autoprobing support for frontend drivers
xen blkfront: Delay wait for block devices until after the disk is added
xen/blkfront: use bdget_disk
xen: Make xen-blkfront write its protocol ABI to xenstore
xen: import arch generic part of xencomm
xen: make grant table arch portable
xen: replace callers of alloc_vm_area()/free_vm_area() with xen_ prefixed one
xen: make include/xen/page.h portable moving those definitions under asm dir
xen: add resend_irq_on_evtchn() definition into events.c
Xen: make events.c portable for ia64/xen support
xen: move events.c to drivers/xen for IA64/Xen support
xen: move features.c from arch/x86/xen/features.c to drivers/xen
xen: add missing definitions in include/xen/interface/vcpu.h which ia64/xen needs
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (48 commits)
net: Fix wrong interpretation of some copy_to_user() results.
xfrm: alg_key_len & alg_icv_len should be unsigned
[netdrvr] tehuti: move ioctl perm check closer to function start
ipv6: Fix typo in net/ipv6/Kconfig
via-velocity: fix vlan receipt
tg3: sparse cleanup
forcedeth: realtek phy crossover detection
ibm_newemac: Increase MDIO timeouts
gianfar: Fix skb allocation strategy
netxen: reduce stack usage of netxen_nic_flash_print
smc911x: test after postfix decrement fails in smc911x_{reset,drop_pkt}
net drivers: fix platform driver hotplug/coldplug
forcedeth: new backoff implementation
ehea: make things static
phylib: Add support for board-level PHY fixups
[netdrvr] atlx: code movement: move atl1 parameter parsing
atlx: remove flash vendor parameter
korina: misc cleanup
korina: fix misplaced return statement
WAN: Fix confusing insmod error code for C101 too.
... -
* git://git.infradead.org/mtd-2.6: (82 commits)
[MTD] m25p80: Add Support for ATMEL AT25DF641 64-Megabit SPI Flash
[MTD] m25p80: add FAST_READ access support to M25Pxx
[MTD] [NAND] bf5xx_nand: Avoid crash if bfin_mac is installed.
[MTD] [NAND] at91_nand: control NCE signal
[MTD] [NAND] AT91 hardware ECC compile fix for at91sam9263 / at91sam9260
[MTD] [NAND] Hardware ECC controller on at91sam9263 / at91sam9260
[JFFS2] Introduce dbg_readinode2 log level, use it to shut read_dnode() up
[JFFS2] Fix jffs2_reserve_space() when all blocks are pending erasure.
[JFFS2] Add erase_checking_list to hold blocks being marked.
UBI: add a message
[JFFS2] Return values of jffs2_block_check_erase error paths
[MTD] Clean up AR7 partition map support
[MTD] [NOR] Fix Intel CFI driver for collie flash
[JFFS2] Finally remove redundant ref->__totlen field.
[JFFS2] Honour TEST_TOTLEN macro in debugging code. ref->__totlen is going!
[JFFS2] Add paranoia debugging for superblock counts
[JFFS2] Fix free space leak with in-band cleanmarkers
[JFFS2] Self-sufficient #includes in jffs2_fs_i.h: include
[MTD] [NAND] Verify probe by retrying to checking the results match
[MTD] [NAND] S3C2410 Allow ECC disable to be specified by the board
... -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: silence defined but not used warning in non-modular builds
ieee1394: rawiso: requeue packet for transmission after skipped cycle -
Currently the kernel will issue the following warning:
drivers/ieee1394/raw1394.c:2938: warning: 'raw1394_id_table' defined but not used
Add #ifdef MODULE guards around the declaration.Signed-off-by: Tony Breeds
Ditto with dv1394_id_table and video1394_id_table.
Signed-off-by: Stefan Richter
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As it seems, some host controllers have issues that can cause them to
skip cycles now and then when using large packets. I suspect that this
is due to DMA not succeeding in time. If the transmit fifo can't contain
more than one packet (big packets), the DMA should provide a new packet
each cycle (125us). I am under the impression that my current PCI
express test system can't guarantee this.In any case, the patch tries to provide a workaround as follows:
The DMA program descriptors are modified such that when an error occurs,
the DMA engine retries the descriptor the next cycle instead of
stalling. This way no data is lost. The side effect of this is that
packets are sent with one cycle delay. This however might not be that
much of a problem for certain protocols (e.g. AM824). If they use
padding packets for e.g. rate matching they can drop one of those to
resync the streams.The amount of skips between two userspace wakeups is counted. This
number is then propagated to userspace through the upper 16 bits of the
'dropped' parameter. This allows unmodified userspace applications due
to the following:
1) libraw simply passes this dropped parameter to the user application
2) the meaning of the dropped parameter is: if it's nonzero, something
bad has happened. The actual value of the parameter at this moment does
not have a specific meaning.A libraw client can then retrieve the number of skipped cycles and
account for them if needed.Signed-off-by: Pieter Palmers
Signed-off-by: Stefan Richter
25 Apr, 2008
28 commits
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The small patch below:
- Removes the unused md argument from both specific_minor() and next_free_minor()
- Folds kmalloc + memset(0) into a single kzalloc call in alloc_dev()This has been compile tested on x86.
Signed-off-by: Frederik Deweerdt
Signed-off-by: Alasdair G Kergon -
dm_create_error_table() was added in kernel 2.6.18 and never used...
Signed-off-by: Adrian Bunk
Signed-off-by: Alasdair G Kergon -
void returning functions returned the return value of another void
returning function...Spotted by sparse.
Signed-off-by: Adrian Bunk
Signed-off-by: Alasdair G Kergon -
Remove an avoidable 3ms delay on some dm-raid1 and kcopyd I/O.
It is specified that any submitted bio without BIO_RW_SYNC flag may plug the
queue (i.e. block the requests from being dispatched to the physical device).The queue is unplugged when the caller calls blk_unplug() function. Usually, the
sequence is that someone calls submit_bh to submit IO on a buffer. The IO plugs
the queue and waits (to be possibly joined with other adjacent bios). Then, when
the caller calls wait_on_buffer(), it unplugs the queue and submits the IOs to
the disk.This was happenning:
When doing O_SYNC writes, function fsync_buffers_list() submits a list of
bios to dm_raid1, the bios are added to dm_raid1 write queue and kmirrord is
woken up.fsync_buffers_list() calls wait_on_buffer(). That unplugs the queue, but
there are no bios on the device queue as they are still in the dm_raid1 queue.wait_on_buffer() starts waiting until the IO is finished.
kmirrord is scheduled, kmirrord takes bios and submits them to the devices.
The submitted bio plugs the harddisk queue but there is no one to unplug it.
(The process that called wait_on_buffer() is already sleeping.)So there is a 3ms timeout, after which the queues on the harddisks are
unplugged and requests are processed.This 3ms timeout meant that in certain workloads (e.g. O_SYNC, 8kb writes),
dm-raid1 is 10 times slower than md raid1.Every time we submit something asynchronously via dm_io, we must unplug the
queue actually to send the request to the device.This patch adds an unplug call to kmirrord - while processing requests, it keeps
the queue plugged (so that adjacent bios can be merged); when it finishes
processing all the bios, it unplugs the queue to submit the bios.It also fixes kcopyd which has the same potential problem. All kcopyd requests
are submitted with BIO_RW_SYNC.Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon
Acked-by: Jens Axboe -
This patch replaces the schedule() in the main kmirrord thread with a timer.
The schedule() could introduce an unwanted delay when work is ready to be
processed.The code instead calls wake() when there's work to be done immediately, and
delayed_wake() after a failure to give a short delay before retrying.Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon -
Publish the dm-io, dm-log and dm-kcopyd headers in include/linux.
Signed-off-by: Alasdair G Kergon
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Rename kcopyd.[ch] to dm-kcopyd.[ch].
Signed-off-by: Alasdair G Kergon
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Make dm.h macros and inlines available in include/linux/device-mapper.h
Signed-off-by: Alasdair G Kergon
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Remove client counting code that is no longer needed.
Initialization and destruction is made globally from dm_init and dm_exit and is
not based on client counts. Initialization allocates only one empty slab cache,
so there is no negative impact from performing the initialization always,
regardless of whether some client uses kcopyd or not.Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon -
Change the global mempool in kcopyd into a per-device mempool to avoid
deadlock possibilities.Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon -
Make one kcopyd thread per device.
The original shared kcopyd could deadlock.
Configuration:
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Remove internal module reference fields from the interface.
Signed-off-by: Jonathan Brassow
Signed-off-by: Alasdair G Kergon -
Reorder a couple of functions in the file so the next patch is readable.
Signed-off-by: Alasdair G Kergon
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Clean up the dm-log interface to prepare for publishing it in include/linux.
Signed-off-by: Heinz Mauelshagen
Signed-off-by: Alasdair G Kergon -
Clean up the kcopyd interface to prepare for publishing it in include/linux.
Signed-off-by: Heinz Mauelshagen
Signed-off-by: Alasdair G Kergon -
Clean up the dm-io interface to prepare for publishing it in include/linux.
Signed-off-by: Heinz Mauelshagen
Signed-off-by: Alasdair G Kergon -
Rename 'error' to 'error_bits' for clarity.
Signed-off-by: Alasdair G Kergon
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Save pointer to dm_target in dm_snapshot structure.
Signed-off-by: Mikulas Patocka
Signed-off-by: Alasdair G Kergon -
Move the dirty region log code into a separate module so
other targets can share the code.Signed-off-by: Heinz Mauelshagen
Signed-off-by: Alasdair G Kergon -
Change dm-log.c messages from "mirror log" to "dirty region log" as
a new dm target wants to share this code.Signed-off-by: Heinz Mauelshagen
Signed-off-by: Alasdair G Kergon -
Use shorter list_splice_init() for brevity.
Signed-off-by: Robert P. J. Day
Signed-off-by: Alasdair G Kergon -
Limit the amount of memory allocated per snapshot on systems
with a large page size. (The larger default chunk size on
these systems compensates for the smaller number of pages reserved.)Signed-off-by: Milan Broz
Signed-off-by: Alasdair G Kergon -
If a snapshot has a smaller chunksize than the page size the
conversion to pages currently returns 0 instead of 1, causing:
kernel BUG in mempool_resize.Signed-off-by: Mikulas Patocka
Signed-off-by: Milan Broz
Signed-off-by: Alasdair G Kergon
Cc: stable@kernel.org -
Signed-off-by: Michael Hennerich
Signed-off-by: Bryan Wu
Signed-off-by: David Woodhouse -
Signed-off-by: Bryan Wu
Signed-off-by: David Woodhouse -
http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=4053
Singed-off-by: Michael Hennerich
Signed-off-by: Bryan Wu
Signed-off-by: David Woodhouse -
This driver did not control NCE signal during normal operations (only
enable NCE on probing and disable NCE on removing). This patch make
NCE signal inactive on idle state.Signed-off-by: Atsushi Nemoto
Signed-off-by: David Woodhouse -
The sam926x docs allegedly don't list an "ECC_PARITY" field, and the
header files in the upstream kernel don't have it either.Masking with it was useless anyway, so just remove it.
Signed-off-by: Richard Genoud
Signed-off-by: David Woodhouse
