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* V4L/DVB (5323): Updated support for tuner callbacksHartmut Hackmann2007-04-277-38/+45
| | | | | | | | | | | | This change supplies a more generic version of the tuner callback. The tuner struct now has a function pointer int (*tuner_callback) (void *dev, int command, int arg) additionally to a int config parameter. both can be set through the TUNER_SET_TYPE_ADDR client call. Note that the meaning of the parameters depend on the tuner type. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5322): Removed board naming code in saa7134-dvbHartmut Hackmann2007-04-271-40/+13
| | | | | | | This is for better consistency with other drivers Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5321): Saa7134-dvb: initialize the dvb frontend in dvb_initHartmut Hackmann2007-04-271-1/+13
| | | | | | | | | | | The hardware is completely initialized afterwards, especially the tda10046 has its firmware - which is also necessary in analog mode of some hybrid boards. Calling the sleep function afterwards saves power and definitely puts hybrid boards into analog mode without additional code elsewere. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5320): Filled in limiting values in tda827x.cHartmut Hackmann2007-04-271-2/+10
| | | | | | | | The parameters for minimum and maximum frequency were missing. Also added mail addresses of the module authors. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5319): Set tda827x to sleep mode after attachHartmut Hackmann2007-04-272-1/+10
| | | | | | | | | This change sets the tda827x to sleep mode right after attach in dvb mode. It is just to save power. For the same reason, the ADC of the tda10046 gets turned off in sleep mode. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5318): Fix tda8290 code for tda827x moduleHartmut Hackmann2007-04-271-6/+5
| | | | | | | | | During tuner attach, the pointers to host dev structure are not set yet, so the I2c adapter needs to be accessed differently. This patch also does some minor cleanup in the saa7134-dvb module. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5317): Create tda827x dvb tuner moduleMichael Krufky2007-04-278-359/+568
| | | | | | | | The patch moves the tda827x dvb tuning code to a separate module Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5316): Add radio support for the Lifeview FlyDVB-T DuoPeter Missel2007-04-271-1/+8
| | | | | | | | There are card variants supporting FM radio through tda8275. Signed-off-by: Peter Missel <peter.missel@onlinehome.de> Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5315): Tda1004x: check request firmware for NULL ponter againHartmut Hackmann2007-04-271-11/+17
| | | | | | | | | In older versions, this was used to decide whether to boot from eeprom or file. This is no longer necessary but the check helps to avoid an oops with misconfigured cards. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5314): Added support for tda827x tuners with preamlifiersHartmut Hackmann2007-04-277-465/+617
| | | | | | | | | | | | This patch contains - new tuning code for the tda827xa silicon tuner. - controls the preamplifier of some boards with this tuner. - support for the Philips Tiger S hybrid DVB-T reference design. - reworked the saa7134-dvb modulue to get rid of most of the small board specific functions. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5313): Added a config entry and a gpio function pointer to tuner structHartmut Hackmann2007-04-275-9/+28
| | | | | | | | | | | | | These entries mainly are to support configurations of the tda827x silicon tuner with a preamplifier. The values can be set throgh the attach inform or through the extended TUNER_SET_TYPE_ADDR client call. The function pointer will only be updated if the parameter is not NULL. Since a typecast is necessary to set the pointer, i added a typedef for this pointer (tuner_gpio_func_t) in tuner.h Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5312): Saa713x: added a GPIO handler functionHartmut Hackmann2007-04-272-0/+42
| | | | | | | This function allows to set, clear and tristate the GPIO ports. Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5311): Tda1004x driver updatesHartmut Hackmann2007-04-273-71/+112
| | | | | | | | | | | | | | | | | | | | | | There are the following changes: - separate configuration of IF and GPIOs. - set GPIOs before firmware load. This helps to avoid I2C address collisions. - if desired invert GPIOs at sleep (automatic return to analog mode of card). - added 3 tuner configuration bytes to config stuct. - added i2c gate address to config struct. - moved _state struct declaration to header file to make it accessible on board layer. - added "conf_probed" to the state struct to allow i.e. probing for correct tuner version. - changed firmware load mechanism to always: + check if already loaded + try to boot from eeprom + try downlad from host - corrected name of tda10046 firmware image (backward compatible). Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5307): Add support for the cx23415 MPEG decoding features.Hans Verkuil2007-04-275-19/+71
| | | | | | | | | | | | The cx23415 adds some extra features that this DVB decoding API did not support. This API has been expanded to support the required features. Both source and binary backwards compatibility is kept intact by these changes. So existing applications are not affected. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Ralph Metzler <rjkm@metzlerbros.de> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5306): Add support for VIDIOC_G_CHIP_IDENTHans Verkuil2007-04-2712-57/+130
| | | | | | | | | | | VIDIOC_G_CHIP_IDENT improves debugging of card problems: it can be used to detect which chips are on the board and based on that information selected register dumps can be made, making it easy to debug complicated media chips containing tens or hundreds of registers. This ioctl replaces the internal VIDIOC_INT_G_CHIP_IDENT ioctl. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5299): Added support for loading cx88-dvb and cx88-blackbirdMarkus Rechberger2007-04-271-12/+4
| | | | | | | Added support for loading cx88-dvb and cx88-blackbird Signed-off-by: Markus Rechberger <mrechberger@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5298): Added support for deferred module requesting to cx88Markus Rechberger2007-04-272-0/+34
| | | | | | | added support for deferred module requesting to cx88 Signed-off-by: Markus Rechberger <mrechberger@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5297): Fix identation on tda10021.cMauro Carvalho Chehab2007-04-271-1/+1
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5294): Make pvr2_encoder_prep_config() staticAdrian Bunk2007-04-271-1/+1
| | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5293): Make dvb_usb_gl861_debug staticAdrian Bunk2007-04-271-1/+1
| | | | | | Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* V4L/DVB (5290): Add support for VIDIOC_INT_G/S_STD_OUTPUTHans Verkuil2007-04-273-3/+14
| | | | | | | | | | | | Added VIDIOC_INT_G_STD_OUTPUT and VIDIOC_INT_S_STD_OUTPUT to allow drivers to set the TV standard for video output separately from the video capture. This is needed for cx23415 support where the decoder is separate from the encoder and can have a different TV standard. Modified the saa7127 module to listen to VIDIOC_INT_G/S_STD_OUTPUT instead of VIDIOC_G/S_STD. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5289): Add support for video output overlays.Hans Verkuil2007-04-274-23/+79
| | | | | | | | | | Add V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY support. Also add support for local and global alpha overlays. Add new field enums V4L2_FIELD_INTERLACED_TB and V4L2_FIELD_INTERLACED_BT. These changes are needed to support the ivtv On Screen Display features. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5278): Bt8xx/: possible cleanupsAdrian Bunk2007-04-273-76/+0
| | | | | | | | | | | | | | | | | | This patch contains the following possible cleanups: - remove the following unused global functions: - bttv-if.c: bttv_get_cardinfo() - bttv-if.c: bttv_get_id() - bttv-if.c: bttv_get_gpio_queue() - bttv-if.c: bttv_i2c_call() - remove the following unused EXPORT_SYMBOL's: - bttv-gpio.c: bttv_sub_bus_type - bttv-gpio.c: bttv_gpio_inout - bttv-gpio.c: bttv_gpio_read - bttv-gpio.c: bttv_gpio_write - bttv-gpio.c: bttv_gpio_bits Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5272): Add V4L2_CAP_VIDEO_OUTPUT_POS capabilityHans Verkuil2007-04-271-0/+3
| | | | | | | | | Add V4L2_CAP_VIDEO_OUTPUT_POS capability and x, y position coordinates to struct v4l2_pix_format. This is needed to support positioning the MPEG/YUV output of the cx23415. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5268): Add support for three new MPEG controls.Hans Verkuil2007-04-274-5/+85
| | | | | | | | | Added V4L2_CID_MPEG_AUDIO_MUTE, V4L2_CID_MPEG_VIDEO_MUTE and V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS controls together with their implementation in the cx2341x module. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (5257): USB: add zr364xx V4L2 driverAntoine Jacquet2007-04-275-12/+1027
| | | | | | | | This patch adds a V4L2 driver giving support for USB webcams based on the zr364xx chipsets. Signed-off-by: Antoine Jacquet <royale@zerezo.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-04-2715-773/+695
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: selinux: preserve boolean values across policy reloads selinux: change numbering of boolean directory inodes in selinuxfs selinux: remove unused enumeration constant from selinuxfs selinux: explicitly number all selinuxfs inodes selinux: export initial SID contexts via selinuxfs selinux: remove userland security class and permission definitions SELinux: move security_skb_extlbl_sid() out of the security server MAINTAINERS: update selinux entry SELinux: rename selinux_netlabel.h to netlabel.h SELinux: extract the NetLabel SELinux support from the security server NetLabel: convert a BUG_ON in the CIPSO code to a runtime check NetLabel: cleanup and document CIPSO constants
| * selinux: preserve boolean values across policy reloadsStephen Smalley2007-04-261-0/+38
| | | | | | | | | | | | | | | | | | | | At present, the userland policy loading code has to go through contortions to preserve boolean values across policy reloads, and cannot do so atomically. As this is what we always want to do for reloads, let the kernel preserve them instead. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Acked-by: Karl MacMillan <kmacmillan@mentalrootkit.com> Signed-off-by: James Morris <jmorris@namei.org>
| * selinux: change numbering of boolean directory inodes in selinuxfsJames Carter2007-04-261-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | Change the numbering of the booleans directory inodes in selinuxfs to provide more room for new inodes without a conflict in inode numbers and to be consistent with how inode numbering is done in the initial_contexts directory. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> Acked-by: Eric Paris <eparis@parisplace.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * selinux: remove unused enumeration constant from selinuxfsJames Carter2007-04-261-1/+0
| | | | | | | | | | | | | | | | | | | | Remove the unused enumeration constant, SEL_AVC, from the sel_inos enumeration in selinuxfs. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> Acked-by: Eric Paris <eparis@parisplace.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * selinux: explicitly number all selinuxfs inodesJames Carter2007-04-261-0/+6
| | | | | | | | | | | | | | | | | | | | | | Explicitly number all selinuxfs inodes to prevent a conflict between inodes numbered using last_ino when created with new_inode() and those labeled explicitly. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> Acked-by: Eric Paris <eparis@parisplace.org> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * selinux: export initial SID contexts via selinuxfsJames Carter2007-04-263-0/+76
| | | | | | | | | | | | | | | | | | | | Make the initial SID contexts accessible to userspace via selinuxfs. An initial use of this support will be to make the unlabeled context available to libselinux for use for invalidated userspace SIDs. Signed-off-by: James Carter <jwcart2@tycho.nsa.gov> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * selinux: remove userland security class and permission definitionsStephen Smalley2007-04-266-314/+21
| | | | | | | | | | | | | | | | | | Remove userland security class and permission definitions from the kernel as the kernel only needs to use and validate its own class and permission definitions and userland definitions may change. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * SELinux: move security_skb_extlbl_sid() out of the security serverPaul Moore2007-04-263-35/+31
| | | | | | | | | | | | | | | | | | As suggested, move the security_skb_extlbl_sid() function out of the security server and into the SELinux hooks file. Signed-off-by: Paul Moore <paul.moore@hp.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@namei.org>
| * MAINTAINERS: update selinux entryStephen Smalley2007-04-261-1/+3
| | | | | | | | | | | | Add Eric Paris as an SELinux maintainer. Signed-off-by: James Morris <jmorris@namei.org>
| * SELinux: rename selinux_netlabel.h to netlabel.hPaul Moore2007-04-263-2/+2
| | | | | | | | | | | | | | | | | | | | In the beginning I named the file selinux_netlabel.h to avoid potential namespace colisions. However, over time I have realized that there are several other similar cases of multiple header files with the same name so I'm changing the name to something which better fits with existing naming conventions. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
| * SELinux: extract the NetLabel SELinux support from the security serverPaul Moore2007-04-266-405/+481
| | | | | | | | | | | | | | | | | | | | | | Up until this patch the functions which have provided NetLabel support to SELinux have been integrated into the SELinux security server, which for various reasons is not really ideal. This patch makes an effort to extract as much of the NetLabel support from the security server as possibile and move it into it's own file within the SELinux directory structure. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
| * NetLabel: convert a BUG_ON in the CIPSO code to a runtime checkPaul Moore2007-04-261-1/+3
| | | | | | | | | | | | | | | | | | This patch changes a BUG_ON in the CIPSO code to a runtime check. It should also increase the readability of the code as it replaces an unexplained constant with a well defined macro. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
| * NetLabel: cleanup and document CIPSO constantsPaul Moore2007-04-261-8/+29
| | | | | | | | | | | | | | | | This patch collects all of the CIPSO constants and puts them in one place; it also documents each value explaining how the value is derived. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: James Morris <jmorris@namei.org>
* | make SysRq-T show all tasks againIngo Molnar2007-04-272-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | show_state() (SysRq-T) developed the buggy habbit of not showing TASK_RUNNING tasks. This was due to the mistaken belief that state_filter == -1 would be a pass-through filter - while in reality it did not let TASK_RUNNING == 0 p->state values through. Fix this by restoring the original '!state_filter means all tasks' special-case i had in the original version. Test-built and test-booted on i686, SysRq-T now works as intended. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | seqlocks: trivial remove weird whitespaceDaniel Walker2007-04-271-4/+4
| | | | | | | | | | Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of git://git.infradead.org/ubi-2.6Linus Torvalds2007-04-2730-0/+12114
|\ \ | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.infradead.org/ubi-2.6: UBI: remove unused variable UBI: add me to MAINTAINERS JFFS2: add UBI support UBI: Unsorted Block Images
| * | UBI: remove unused variableArtem Bityutskiy2007-04-271-1/+0
| | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * | UBI: add me to MAINTAINERSArtem Bityutskiy2007-04-271-0/+8
| | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * | JFFS2: add UBI supportArtem Bityutskiy2007-04-273-0/+42
| | | | | | | | | | | | | | | | | | | | | This patch make JFFS2 able to work with UBI volumes via the emulated MTD devices which are directly mapped to these volumes. Signed-off-by: Artem Bityutskiy <dedekind@infradead.org>
| * | UBI: Unsorted Block ImagesArtem B. Bityutskiy2007-04-2726-0/+12065
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | UBI (Latin: "where?") manages multiple logical volumes on a single flash device, specifically supporting NAND flash devices. UBI provides a flexible partitioning concept which still allows for wear-levelling across the whole flash device. In a sense, UBI may be compared to the Logical Volume Manager (LVM). Whereas LVM maps logical sector numbers to physical HDD sector numbers, UBI maps logical eraseblocks to physical eraseblocks. More information may be found at http://www.linux-mtd.infradead.org/doc/ubi.html Partitioning/Re-partitioning An UBI volume occupies a certain number of erase blocks. This is limited by a configured maximum volume size, which could also be viewed as the partition size. Each individual UBI volume's size can be changed independently of the other UBI volumes, provided that the sum of all volume sizes doesn't exceed a certain limit. UBI supports dynamic volumes and static volumes. Static volumes are read-only and their contents are protected by CRC check sums. Bad eraseblocks handling UBI transparently handles bad eraseblocks. When a physical eraseblock becomes bad, it is substituted by a good physical eraseblock, and the user does not even notice this. Scrubbing On a NAND flash bit flips can occur on any write operation, sometimes also on read. If bit flips persist on the device, at first they can still be corrected by ECC, but once they accumulate, correction will become impossible. Thus it is best to actively scrub the affected eraseblock, by first copying it to a free eraseblock and then erasing the original. The UBI layer performs this type of scrubbing under the covers, transparently to the UBI volume users. Erase Counts UBI maintains an erase count header per eraseblock. This frees higher-level layers (like file systems) from doing this and allows for centralized erase count management instead. The erase counts are used by the wear-levelling algorithm in the UBI layer. The algorithm itself is exchangeable. Booting from NAND For booting directly from NAND flash the hardware must at least be capable of fetching and executing a small portion of the NAND flash. Some NAND flash controllers have this kind of support. They usually limit the window to a few kilobytes in erase block 0. This "initial program loader" (IPL) must then contain sufficient logic to load and execute the next boot phase. Due to bad eraseblocks, which may be randomly scattered over the flash device, it is problematic to store the "secondary program loader" (SPL) statically. Also, due to bit-flips it may become corrupted over time. UBI allows to solve this problem gracefully by storing the SPL in a small static UBI volume. UBI volumes vs. static partitions UBI volumes are still very similar to static MTD partitions: * both consist of eraseblocks (logical eraseblocks in case of UBI volumes, and physical eraseblocks in case of static partitions; * both support three basic operations - read, write, erase. But UBI volumes have the following advantages over traditional static MTD partitions: * there are no eraseblock wear-leveling constraints in case of UBI volumes, so the user should not care about this; * there are no bit-flips and bad eraseblocks in case of UBI volumes. So, UBI volumes may be considered as flash devices with relaxed restrictions. Where can it be found? Documentation, kernel code and applications can be found in the MTD gits. What are the applications for? The applications help to create binary flash images for two purposes: pfi files (partial flash images) for in-system update of UBI volumes, and plain binary images, with or without OOB data in case of NAND, for a manufacturing step. Furthermore some tools are/and will be created that allow flash content analysis after a system has crashed.. Who did UBI? The original ideas, where UBI is based on, were developed by Andreas Arnez, Frank Haverkamp and Thomas Gleixner. Josh W. Boyer and some others were involved too. The implementation of the kernel layer was done by Artem B. Bityutskiy. The user-space applications and tools were written by Oliver Lohmann with contributions from Frank Haverkamp, Andreas Arnez, and Artem. Joern Engel contributed a patch which modifies JFFS2 so that it can be run on a UBI volume. Thomas Gleixner did modifications to the NAND layer. Alexander Schmidt made some testing work as well as core functionality improvements. Signed-off-by: Artem B. Bityutskiy <dedekind@linutronix.de> Signed-off-by: Frank Haverkamp <haver@vnet.ibm.com>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-04-2731-2237/+4697
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (27 commits) ocfs2: Cache extent records ocfs2: Remember rw lock level during direct io ocfs2: Fix up i_blocks calculation to know about holes ocfs2: Fix extent lookup to return true size of holes ocfs2: Read from an unwritten extent returns zeros ocfs2: make room for unwritten extents flag ocfs2: Use own splice write actor ocfs2: Use do_sync_mapping_range() in ocfs2_zero_tail_for_truncate() [PATCH] Turn do_sync_file_range() into do_sync_mapping_range() ocfs2: zero tail of sparse files on truncate ocfs2: Teach ocfs2_get_block() about holes ocfs2: remove ocfs2_prepare_write() and ocfs2_commit_write() ocfs2: teach ocfs2_file_aio_write() about sparse files ocfs2: Turn off shared writeable mmap for local files systems with holes. ocfs2: abstract out allocation locking ocfs2: teach extend/truncate about sparse files ocfs2: temporarily remove extent map caching ocfs2: sparse b-tree support ocfs2: small cleanup of ocfs2_request_delete() ocfs2: remove unused code ...
| * | ocfs2: Cache extent recordsMark Fasheh2007-04-267-0/+289
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The extent map code was ripped out earlier because of an inability to deal with holes. This patch adds back a simpler caching scheme requiring far less code. Our old extent map caching was designed back when meta data block caching in Ocfs2 didn't work very well, resulting in many disk reads. These days our metadata caching is much better, resulting in no un-necessary disk reads. As a result, extent caching doesn't have to be as fancy, nor does it have to cache as many extents. Keeping the last 3 extents seen should be sufficient to give us a small performance boost on some streaming workloads. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Remember rw lock level during direct ioMark Fasheh2007-04-263-7/+19
| | | | | | | | | | | | | | | | | | | | | Cluster locking might have been redone because a direct write won't complete, so this needs to be reflected in the iocb. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Fix up i_blocks calculation to know about holesMark Fasheh2007-04-269-30/+25
| | | | | | | | | | | | | | | | | | | | | | | | Older file systems which didn't support holes did a dumb calculation of i_blocks based on i_size. This is no longer accurate, so fix things up to take actual allocation into account. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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