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2006-10-03V4L/DVB (4669): Cx88: autodetect Club3D Zap TV2100 by subsystem id 12ab:2300Michael Krufky
The Club3D Zap TV2100 has been reported to be a clone of the Yuan PG300 and KWorld/VStream XPert DVB-T with cx22702 Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4668): Cx88: rename mpeg capability flags from CX88_BOARD_FOO to ↵Michael Krufky
CX88_MPEG_FOO The flags for mpeg capabilities are sub-optimally named as CX88_BOARD_DVB and CX88_BOARD_BLACKBIRD, which creates some confusion. This patch renames the above to CX88_MPEG_DVB and CX88_MPEG_BLACKBIRD. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4667): Changed cx88_board .dvb and .register to an enum.Steven Toth
Some basic cleanup in preperation for a future patch where the cx88-mpeg functions have to deal with the port being used by multiple frontends in (mpeg2 hw encoder and dvb demod). Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4666): Ensure the WM8775 driver is loaded generically for any board.Steven Toth
A generic change to cards to allow any board to specify whether it needs the wm8775 module loaded (by the core) or not. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4665): Add frontend structure callback for bus acquisition.Steven Toth
This patch enables generic bus arbitration callbacks enabling dvbcore frontend_open and frontend_release to pass 'acquire' and 'release' hardware messages back into the DVB bridge frameworks. Frameworks like cx88 can then implement single bus multiple demod card sharing features, which would prohibit two frontends from attempting to use a single transport bus at the same time. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4664): Pvrusb2: Don't use videodev.h; use v4l2-dev.h in its placeMike Isely
The function prototype needed in pvrusb2-v4l2.c has been moved to v4l2-dev.h. Track that change. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4663): Pvrusb2: Get rid of private global context array brain damageMike Isely
A previous attempt to deal with the upcoming loss of video_set_drvdata() and video_get_drvdata() resulted in logic which causes a circular locking dependency - also known as a deadlock. This changeset attacks the problem in a different manner, using a technique that no longer requires the problematic mutex (or that private global array either). Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4662): Pvrusb2: Implement VIDIOC_INT_[G|S]_REGISTERMike Isely
Implement VIDIOC_INT_SET_REGISTER and VIDIOC_INT_GET_REGISTER for the pvrusb2 driver. This is a debugging aid which will not be enabled unless CONFIG_VIDEO_ADV_DEBUG has been enabled. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4661): Pvrusb2: improve 24XXX config option descriptionMike Isely
The CONFIG_VIDEO_PVRUSB2_24XXX is not nearly as "experimental" as the description suggests. So refine the description to better match reality. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4660): Some cleanups at helper chips menuMauro Carvalho Chehab
Rearranged itens, so that decoders came first; cx25840 is, in fact, an audio and video decoder; Fixed some incorrect upercases; Removed the word "chip" for some audio processors at item name; Removed the word "driver" for some item names; Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4658): Another fix because of dvb_attachPatrick Boettcher
Fixed mt2060-usage with dvb_attach Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4657): Power control of the device for dual boardPatrick Boettcher
Corrected power control of the device for dual boards Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4656): Fixed dvb_attach for dib3000mc in dibusbPatrick Boettcher
When converting the dib3000mc-driver to dvb_attach I forgot to invert the check for NULL. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4655): Removed compilation warningsPatrick Boettcher
Removed compilation warnings for unused statics and locals Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4654): Added module parameter force_lna_activationPatrick Boettcher
Added a module parameter for force the activation of any LNA on a board. Suggest by Steve Toth. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4654a): dib700m is not yet ready. Patrick Boettcher
Removing include for kernel 2.6.19 Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4653): Misc fixes for Nova-T 500Patrick Boettcher
- forward the clock to the slave undivided - when sleeping the 3000 do not shutdown the clock Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4652): Misc fixes for DiB3000MC and Nova-T 500Patrick Boettcher
- make the timing frequency update work. - fix AGC calibration for Nova-T 500 Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4651): Adding another USB product ID for Nova-T 500Patrick Boettcher
Adding another USB product ID for the Nova-T 500. Reported by Jose Alberto Reguero. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4650): Misc fixes for dib0700 downloadPatrick Boettcher
Several fixes for dib0700-module. (Firmware error checking, dependency) Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4649): Merged VP702x support to dvb-usb multi inputPatrick Boettcher
The fixed support for the VP70x (supports only StarBox2) is now in sync with latest changes in the dvb-usb framework. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4648): Hauppauge Nova-T 500 support addedPatrick Boettcher
This changeset finalizes the support of the Hauppauge Nova-T 500 (Dual DVB-T). It adds correct AGC setting for the 3000P, correct firmware download state detection. Additionally it fixes the mt2060-driver to be able to be used with dvb_attach. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4647): Added module for DiB0700 based devicesPatrick Boettcher
Added module for DiB0700 based USB devices. This module is preliminary and untested (because of a lack of test devices) but should work. Further commits will be necessary to make it work properly. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4646): Misc. changes, DiB3000MC, MT2060Patrick Boettcher
Changed the attach-function of the dib3000mc-driver to return only one frontend. In case of multiple dib3000-chips on one board, one has to call the i2c-enumeration manually before. Added a field to Microtune 2060 config to output the clock to other tuners/device on a board. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4645): Added new file for multiple input rewritePatrick Boettcher
Forgot to add usb-urb.c which is new after adding support for multiple inputs Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4644): Multi-input fix for dtt200uPatrick Boettcher
Small fix for multi input for dtt200u module. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03V4L/DVB (4643): Multi-input patch for DVB-USB devicePatrick Boettcher
This patch is the first commit of the Multiple Input Patch for the DVB-USB frame work. It changes the DVB-USB-device to be able to have more than one streaming input (e.g. multiple DVB-T sources) on one device. This is a necessary feature for the upcoming DiB7700 driven devices. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2006-10-03[MIPS] Remove IT8172-based platforms, ITE 8172G and Globespan IVR support.Yoichi Yuasa
As per feature-removal-schedule.txt. Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-03Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3848/1: pxafb: Add option of fixing video modes and spitz QVGA mode support [ARM] 3880/1: remove the last trace of iop31x support [ARM] 3879/1: ep93xx: instantiate platform devices for ep93xx ethernet [ARM] 3809/3: get rid of 4 megabyte kernel image size limit [ARM] Fix XIP_KERNEL build error in arch/arm/mm/mmu.c [ARM] 3874/1: Remove leftover usage of asm/timeofday.h
2006-10-03Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial: (21 commits) [SERIAL] add PNP IDs for FPI based touchscreens [SERIAL] Magic SysRq SAK does nothing on serial consoles [SERIAL] tickle NMI watchdog on serial output. [SERIAL] Fix oops when removing suspended serial port [SERIAL] Fix resume handling bug [SERIAL] Remove wrong asm/serial.h inclusions [SERIAL] CONFIG_PM=n slim: drivers/serial/8250_pci.c [SERIAL] OMAP1510 serial fix for 115200 baud [SERIAL] returning proper error from serial core driver [SERIAL] Make uart_line_info() correctly tell MMIO from I/O port [SERIAL] suspend/resume handlers don't have level arg anymore [SERIAL] 8250 resourse management fixes [SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card [SERIAL] serial_cs: handle Nokia multi->single port bodge via config quirk [SERIAL] serial_cs: add configuration quirk [SERIAL] serial_cs: Convert Oxford 950 / Possio GCC wakeup quirk [SERIAL] serial_cs: convert IBM post-init handling to a quirk [SERIAL] serial_cs: allow wildcarded quirks [SERIAL] serial_cs: convert multi-port table to quirk table [SERIAL] serial_cs: Use clean up multiport card detection ...
2006-10-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (29 commits) [POWERPC] Fix rheap alignment problem [POWERPC] Use check_legacy_ioport() for ISAPnP [POWERPC] Avoid NULL pointer in gpio1_interrupt [POWERPC] Enable generic rtc hook for the MPC8349 mITX [POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot [POWERPC] fix spin lock nesting in hvc_iseries [POWERPC] EEH failure to mark pci slot as frozen. [POWERPC] update powerpc defconfig files after libata kconfig breakage [POWERPC] enable sysrq in pmac32_defconfig [POWERPC] UPIO_TSI cleanup [POWERPC] rewrite mkprep and mkbugboot in sane C [POWERPC] maple/pci iomem annotations [POWERPC] powerpc oprofile __user annotations [POWERPC] cell spufs iomem annotations [POWERPC] NULL noise removal: spufs [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c [POWERPC] update mpc8349_itx_defconfig and remove some debug settings [POWERPC] Always call cede in pseries dedicated idle loop [POWERPC] Fix loop logic in irq_alloc_virt() ...
2006-10-03[PATCH] isdn: more pr_debug() fixesAndrew Morton
drivers/isdn/sc/event.c: In function 'indicate_status': drivers/isdn/sc/event.c:49: error: 'events' undeclared (first use in this function) drivers/isdn/sc/event.c:49: error: (Each undeclared identifier is reported only once drivers/isdn/sc/event.c:49: error: for each function it appears in.) drivers/isdn/sc/event.c:49: warning: format '%d' expects type 'int', but argument 4 has type 'ulong' drivers/isdn/sc/interrupt.c: In function 'interrupt_handler': drivers/isdn/sc/interrupt.c:97: warning: format '%x' expects type 'unsigned int', but argument 4 has type 'long unsigned int' drivers/isdn/sc/timer.c: In function 'check_reset': drivers/isdn/sc/timer.c:80: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Acked-by: Karsten Keil <kkeil@suse.de> Cc: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] isdn-debug-build-fixAndrew Morton
When pr_debug() is enabled: drivers/isdn/sc/command.c: In function 'command': drivers/isdn/sc/command.c:107: error: 'commands' undeclared (first use in this function) drivers/isdn/sc/command.c:107: error: (Each undeclared identifier is reported only once drivers/isdn/sc/command.c:107: error: for each function it appears in.) drivers/isdn/sc/command.c:122: warning: format '%x' expects type 'unsigned int', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'dial': drivers/isdn/sc/command.c:199: warning: format '%d' expects type 'int', but argument 4 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'answer': drivers/isdn/sc/command.c:221: warning: format '%s' expects type 'char *', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'hangup': drivers/isdn/sc/command.c:244: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'setl2': drivers/isdn/sc/command.c:265: error: 'l2protos' undeclared (first use in this function) drivers/isdn/sc/command.c: In function 'setl3': drivers/isdn/sc/command.c:297: error: 'l3protos' undeclared (first use in this function) drivers/isdn/sc/command.c:297: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'acceptb': drivers/isdn/sc/command.c:315: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'clreaz': drivers/isdn/sc/command.c:330: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' drivers/isdn/sc/command.c: In function 'seteaz': drivers/isdn/sc/command.c:345: warning: format '%d' expects type 'int', but argument 3 has type 'long unsigned int' Cc: Zach Brown <zach.brown@oracle.com> Acked-by: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] pr_debug: ifb: replace missing comma to separate pr_debug argumentsZach Brown
ifb: replace missing comma to separate pr_debug arguments Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] pr_debug: dell_rbu: fix pr_debug argument warningsZach Brown
dell_rbu: fix pr_debug argument warnings Use size_t length modifier when outputting size_t and use %p instead of %lu for 'u8 *'. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] pr_debug: tipar: repair nonexistant pr_debug argument useZach Brown
tipar: repair nonexistant pr_debug argument use I guessed what the pr_debug meant by 'data'. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] pr_debug: umem: repair nonexistant bh pr_debug referenceZach Brown
umem: repair nonexistant bh pr_debug reference Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: add error reporting to superblock write failureNeilBrown
Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: use ffz instead of find_first_set to convert multiplier to shiftPaul Clements
find_first_set doesn't find the least-significant bit on bigendian machines, so it is really wrong to use it. ffs is closer, but takes an 'int' and we have a 'unsigned long'. So use ffz(~X) to convert a chunksize into a chunkshift. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: remove 'experimental' classification from raid5 reshapeNeilBrown
I have had enough success reports not to believe that this is safe for 2.6.19. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: remove MAX_MD_DEVS which is an arbitrary limitNeilBrown
Once upon a time we needed to fixed limit to the number of md devices, probably because we preallocated some array. This need no longer exists, but we still have an arbitrary limit. So remove MAX_MD_DEVS and allow as many devices as we can fit into the 'minor' part of a device number. Also remove some useless noise at init time (which reports MAX_MD_DEVS) and remove MD_THREAD_NAME_MAX which hasn't been used for a while. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: make messages about resync/recovery etc more specificNeilBrown
It is possible to request a 'check' of an md/raid array where the whole array is read and consistancies are reported. This uses the same mechanisms as 'resync' and so reports in the kernel logs that a resync is being started. This understandably confuses/worries people. Also the text in /proc/mdstat suggests a 'resync' is happen when it is just a check. This patch changes those messages to be more specific about what is happening. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: add a ->congested_fn function for raid5/6NeilBrown
This is very different from other raid levels and all requests go through a 'stripe cache', and it has congestion management already. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: define ->congested_fn for raid1, raid10, and multipathNeilBrown
raid1, raid10 and multipath don't report their 'congested' status through bdi_*_congested, but should. This patch adds the appropriate functions which just check the 'congested' status of all active members (with appropriate locking). raid1 read_balance should be modified to prefer devices where bdi_read_congested returns false. Then we could use the '&' branch rather than the '|' branch. However that should would need some benchmarking first to make sure it is actually a good idea. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: define backing_dev_info.congested_fn for raid0 and linearNeilBrown
Each backing_dev needs to be able to report whether it is congested, either by modulating BDI_*_congested in ->state, or by defining a ->congested_fn. md/raid did neither of these. This patch add a congested_fn which simply checks all component devices to see if they are congested. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: Improve locking around error handlingNeilBrown
The error handling routines don't use proper locking, and so two concurrent errors could trigger a problem. So: - use test-and-set and test-and-clear to synchonise the In_sync bits with the ->degraded count - use the spinlock to protect updates to the degraded count (could use an atomic_t but that would be a bigger change in code, and isn't really justified) - remove un-necessary locking in raid5 Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: Remove working_disks from raid1 state dataNeilBrown
It is equivalent to conf->raid_disks - conf->mddev->degraded. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: Factor out part of raid1d into a separate functionNeilBrown
raid1d has toooo many nested block, so take the fix_read_error functionality out into a separate function. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: remove unnecessary variable x in stripe_to_pdidx()Coywolf Qi Hunt
Signed-off-by: Coywolf Qi Hunt <qiyong@freeforge.net> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03[PATCH] md: new sysfs interface for setting bits in the write-intent-bitmapPaul Clements
Add a new sysfs interface that allows the bitmap of an array to be dirtied. The interface is write-only, and is used as follows: echo "1000" > /sys/block/md2/md/bitmap (dirty the bit for chunk 1000 [offset 0] in the in-memory and on-disk bitmaps of array md2) echo "1000-2000" > /sys/block/md1/md/bitmap (dirty the bits for chunks 1000-2000 in md1's bitmap) This is useful, for example, in cluster environments where you may need to combine two disjoint bitmaps into one (following a server failure, after a secondary server has taken over the array). By combining the bitmaps on the two servers, a full resync can be avoided (This was discussed on the list back on March 18, 2005, "[PATCH 1/2] md bitmap bug fixes" thread). Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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