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* UBI: introduce helpers dbg_chk_{io, gen}Ezequiel Garcia2012-12-101-1/+1
| | | | | | | | | | With this patch code is a bit more readable and there's no generated code or functionality impact. Furthermore, this abstracts implementation details and will allow to change ubi_debug_info in a less invasive way. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: replace memcpy with struct assignmentEzequiel Garcia2012-12-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This kind of memcpy() is error-prone. Its replacement with a struct assignment is prefered because it's type-safe and much easier to read. Found by coccinelle. Hand patched and reviewed. Tested by compilation only. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ identifier struct_name; struct struct_name to; struct struct_name from; expression E; @@ -memcpy(&(to), &(from), E); +to = from; // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: harmonize the update of ubi->beb_rsvd_pebsShmulik Ladkani2012-07-181-18/+2
| | | | | | | | | | | | | | Currently, there are several locations where an attempt to reserve more PEBs for bad PEB handling is made, with the same code being duplicated. Harmonize it by introducing 'ubi_update_reserved()'. Also, improve the debug message issued, making it more descriptive. Artem: amended the patch a little. Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
* UBI: modify ubi_wl_flush function to clear work queue for a lnumJoel Reardon2012-05-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | This patch modifies ubi_wl_flush to force the erasure of particular volume id / logical eraseblock number pairs. Previous functionality is preserved when passing UBI_ALL for both values. The locations where ubi_wl_flush were called are appropriately changed: ubi_leb_erase only flushes for the erased LEB, and ubi_create_volume forces only flushing for its volume id. External code can call this new feature via the new function ubi_flush() added to kapi.c, which simply passes through to ubi_wl_flush(). This was tested by disabling the call to do_work in ubi thread, which results in the work queue remaining unless explicitly called to remove. UBIFS was changed to call ubifs_leb_change 50 times for four different LEBs. Then the new function was called to clear the queue: passing wrong volume ids / lnum, correct ones, and finally UBI_ALL for both to ensure it was finally all cleard. The work queue was dumped each time and the selective removal of the particular LEB numbers was observed. Extra checks were enabled and ubifs's integck was also run. Finally, the drive was repeatedly filled and emptied to ensure that the queue was cleared normally. Artem: amended the patch. Signed-off-by: Joel Reardon <reardonj@inf.ethz.ch> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: get rid of dbg_errArtem Bityutskiy2012-05-201-9/+9
| | | | | | | | This patch removes the 'dbg_err()' macro and we now use 'ubi_err' instead. The idea of 'dbg_err()' was to compile out some error message to make the binary a bit smaller - but I think it was a bad idea. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: more of clean-up terminology for self-checksArtem Bityutskiy2012-05-201-17/+14
| | | | | | | | | | | We have the "sefl-check" feature in UBI, but for historical reasons many corresponding functions and commentaries in the code use term "paranoid check" instead. Let's clean this up and use "self-check" everywhere. This patch renames functions, amends messages and kills several redundant debugging messages. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: remove Kconfig debugging optionArtem Bityutskiy2012-05-201-7/+0
| | | | | | | | | This patch kills the UBI debugging Kconfig option completely and makes all the debugging stuff to be always compiled-in. It was pain in the neck to maintain this useless option because all users I am aware of have debugging enabled anyway - how else will you diagnose errors otherwise? Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: rename ubi_dbg_dump_vtbl_recordArtem Bityutskiy2012-05-201-1/+1
| | | | | | | | I am going to remove the "UBI debugging" compilation option and make the debugging stuff to be always compiled it. This patch is a preparation which renames 'ubi_dbg_dump_vtbl_record()' to 'ubi_dump_vtbl_record()'. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* UBI: rename ubi_dbg_dump_vol_infoArtem Bityutskiy2012-05-201-1/+1
| | | | | | | | I am going to remove the "UBI debugging" compilation option and make the debugging stuff to be always compiled it. This patch is a preparation which renames 'ubi_dbg_dump_vol_info()' to 'ubi_dump_vol_info()'. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: Add export.h for EXPORT_SYMBOL/THIS_MODULE where neededPaul Gortmaker2011-11-011-0/+1
| | | | | | | These two common macros will be no longer present everywhere. Call out the include needs of them explicitly where required. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* UBI: use debugfs for the extra checks knobsArtem Bityutskiy2011-06-011-1/+1
| | | | | | | | | | This patch introduces debugfs support to UBI. All the UBI stuff is kept in the "ubi" debugfs directory, which contains per-UBI device "ubi/ubiX" sub-directories, containing debugging files. This file also creates "ubi/ubiX/chk_gen" and "ubi/ubiX/chk_io" knobs for switching general and I/O extra checks on and off. And it removes the 'debug_chks' UBI module parameters. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: do not compare array with NULLArtem Bityutskiy2011-04-051-5/+0
| | | | | | | | Coverity spotted that UBI debugging code tries to compare an array and NULL, which obviously makes little sense. Kill this check. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: make self-checks dynamicArtem Bityutskiy2011-03-161-2/+5
| | | | | | | | | | | | | | This patch adds a possibility to dynamically switch UBI self-checks on and off, instead of toggling them compile-time from the configuration menu. This is much more flexible, and consistent with UBIFS, and this also simplifies UBI Kconfig menu and the code. This patch introduces two levels of self-checks - general, which includes all self-checks which are relatively fast, and I/O, which includes write-verify checks and erase-verify checks, which are relatively slow and involve flash I/O. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: preserve corrupted PEBsArtem Bityutskiy2010-10-191-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | Currently UBI erases all corrupted eraseblocks, irrespectively of the nature of corruption: corruption due to power cuts and non-power cut corruption. The former case is OK, but the latter is not, because UBI may destroy potentially important data. With this patch, during scanning, when UBI hits a PEB with corrupted VID header, it checks whether this PEB contains only 0xFF data. If yes, it is safe to erase this PEB and it is put to the 'erase' list. If not, this may be important data and it is better to avoid erasing this PEB. Instead, UBI puts it to the corr list and moves out of the pool of available PEB. IOW, UBI preserves this PEB. Such corrupted PEB lessen the amount of available PEBs. So the more of them we accumulate, the less PEBs are available. The maximum amount of non-power cut corrupted PEBs is 8. This patch is a response to UBIFS problem where reporter (Matthew L. Creech <mlcreech@gmail.com>) observes that UBIFS index points to an unmapped LEB. The theory is that corresponding PEB somehow got corrupted and UBI wiped it. This patch (actually a series of patches) tries to make sure such PEBs are preserved - this would make it is easier to analyze the corruption. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* UBI: remove built-in gluebiDmitry Pervushin2009-06-021-24/+2
| | | | | | | | Remove built-in gluebi support. This is a preparation for a standalone glubi module support Signed-off-by: Dmitry Pervushin <dpervushin@embeddedalley.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: add notification APIDmitry Pervushin2009-06-021-0/+4
| | | | | | | | | | | | | | | | | | | | UBI volume notifications are intended to create the API to get clients notified about volume creation/deletion, renaming and re-sizing. A client can subscribe to these notifications using 'ubi_volume_register()' and cancel the subscription using 'ubi_volume_unregister()'. When UBI volumes change, a blocking notifier is called. Clients also can request "added" events on all volumes that existed before client subscribed to the notifications. If we use notifications instead of calling functions like 'ubi_gluebi_xxx()', we can make the MTD emulation layer to be more flexible: build it as a separate module and load/unload it on demand. [Artem: many cleanups, rework locking, add "updated" event, provide device/volume info in notifiers] Signed-off-by: Dmitry Pervushin <dpervushin@embeddedalley.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: do not panic if volume check failsArtem Bityutskiy2009-05-181-7/+11
| | | | | | | | | If a volume paranoid check fails, do not return an error code to the caller, but just print error messages and go forward. The primary reason for this is that it is difficult to recover and cancel the operation at that stage. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: add dump_stack in checking codeArtem Bityutskiy2009-05-181-0/+1
| | | | | | | | I am experiencing an error in 'paranoid_check_volume()'. Add dump_stack() there to make it easier to identify the reasons of the error. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: improve debugging messagesArtem Bityutskiy2009-05-181-5/+5
| | | | | | | Various minor improvements to the debugging messages which I found useful while hunting problems. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: re-name volumes_mutex to device_mutexArtem Bityutskiy2009-05-181-3/+3
| | | | | | | The mutex essencially protects the entire UBI device, so the old @volumes_mutex name is a little misleading. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: use nicer 64-bit mathArtem Bityutskiy2009-01-181-10/+7
| | | | | | | Get rid of 'do_div()' and use more user-friendly primitives from 'linux/math64.h'. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* mtd: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-061-2/+2
| | | | | | CC: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* UBI: fix gcc warningArtem Bityutskiy2008-07-241-1/+1
| | | | | | | | | Fix the following warning: drivers/mtd/ubi/vmt.c: In function 'ubi_rename_volumes': drivers/mtd/ubi/vmt.c:642: warning: statement with no effect Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix kernel-doc errors and warningsArtem Bityutskiy2008-07-241-1/+1
| | | | | | | No functional changes, just tweak comments to make kernel-doc work fine and stop complaining. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix checkpatch.pl errors and warningsArtem Bityutskiy2008-07-241-2/+2
| | | | | | | | Just out or curiousity ran checkpatch.pl for whole UBI, and discovered there are quite a few of stylistic issues. Fix them. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: implement multiple volumes renameArtem Bityutskiy2008-07-241-8/+49
| | | | | | | Quite useful ioctl which allows to make atomic system upgrades. The idea belongs to Richard Titmuss <richard_titmuss@logitech.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix and re-work debugging stuffArtem Bityutskiy2008-07-241-36/+37
| | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: improve mkvol request validationArtem Bityutskiy2008-07-241-2/+2
| | | | | | | | | Check that volume name is not shorter than 'name_len'. No need to copy the trailing zero byte because whole array was zeroed earlier. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix memory leakArtem Bityutskiy2008-07-241-9/+9
| | | | | | | | | ubi_free_volume() function sets ubi->volumes[] to NULL, so ubi_eba_close() is useless, it does not free what has to be freed. So zap it and free vol->eba_tbl at the volume release function. Pointed-out-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: avoid unnecessary division operationsKyungmin Park2008-07-241-1/+1
| | | | | | | | UBI already checks that @min io size is the power of 2 at io_init. It is save to use bit operations then. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: silence warningS.Çağlar Onur2008-03-041-1/+3
| | | | | | | | drivers/mtd/ubi/vmt.c: In function `ubi_create_volume': drivers/mtd/ubi/vmt.c:379: warning: statement with no effect Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: add auto-resize featureArtem Bityutskiy2008-01-251-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | The problem: NAND flashes have different amount of initial bad physical eraseblocks (marked as bad by the manufacturer). For example, for 256MiB Samsung OneNAND flash there might be from 0 to 40 bad initial eraseblocks, which is about 2%. When UBI is used as the base system, one needs to know the exact amount of good physical eraseblocks, because this number is needed to create the UBI image which is put to the devices during production. But this number is not know, which forces us to use the minimum number of good physical eraseblocks. And UBI additionally reserves some percentage of physical eraseblocks for bad block handling (default is 1%), so we have 1-3% of PEBs reserved at the end, depending on the amount of initial bad PEBs. But it is desired to always have 1% (or more, depending on the configuration). Solution: this patch adds an "auto-resize" flag to the volume table. The volume which has the "auto-resize" flag will automatically be re-sized (enlarged) on the first UBI initialization. UBI clears the flag when the volume is re-sized. Only one volume may have the "auto-resize" flag. So, the production UBI image may have one volume with "auto-resize" flag set, and its size is automatically adjusted on the first boot of the device. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: use bit-fieldsArtem Bityutskiy2008-01-251-11/+1
| | | | | | Save 12 bytes of RAM per volume by using bit-fields instead of integers. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: bugfix: do not forget to increment vol_countArtem Bityutskiy2007-12-261-0/+1
| | | | | | | | | | When creating a new volume, do not forget to increment the vol_count variable. Also, users are not interested in internal volumes, so do not show them in the volumes_count sysfs file. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: add UBI devices reference countingArtem Bityutskiy2007-12-261-5/+9
| | | | | | | | | | This is one more step on the way to "removable" UBI devices. It adds reference counting for UBI devices. Every time a volume on this device is opened - the device's refcount is increased. It is also increased if someone is reading any sysfs file of this UBI device or of one of its volumes. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: tweak volumes locking some moreArtem Bityutskiy2007-12-261-13/+7
| | | | | | | Make the code more consistent by requiring the caller to lock the ubi->volume_mutex, because this is what we do for updates. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: introduce volume refcountingArtem Bityutskiy2007-12-261-30/+58
| | | | | | | | Add ref_count field to UBI volumes and remove weired "vol->removed" field. This way things are better understandable and we do not have to do whold show_attr operation under spinlock. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix error pathArtem Bityutskiy2007-12-261-25/+20
| | | | | | | | Error path in volume creation is bogus. First of, it ovverrides the 'err' variable and returns zero to the caller. Second, ubi_assert() in the release function is wrong. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: get device when opening volumeArtem Bityutskiy2007-12-261-5/+0
| | | | | | | | When a volume is opened, get its kref via get_device() call. And put the reference when closing the volume. With this, we may have a bit saner volume delete. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: tweak volumes lockingArtem Bityutskiy2007-12-261-6/+16
| | | | | | | Transform vtbl_mutex to volumes_mutex - this just makes code easier to understand. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: improve internal interfacesArtem Bityutskiy2007-12-261-12/+10
| | | | | | | | Pass volume description object to the EBA function which makes more sense, and EBA function do not have to find the volume description object by volume ID. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: improve error messagesArtem Bityutskiy2007-12-261-3/+8
| | | | | | | Always print error code with error messages, sometimes it is extremely helpful info. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: remove redundant fieldArtem Bityutskiy2007-12-261-4/+8
| | | | | | | Remove redundant ubi->major field - we have it in ubi->cdev.dev already. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: minor tidy-upsArtem Bityutskiy2007-12-261-3/+4
| | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: silence a warningJesper Juhl2007-12-261-2/+3
| | | | | | | | | | | | | | | | | This patch silences the following warning : drivers/mtd/ubi/vmt.c:73: warning: 'ret' may be used uninitialized in this function gcc can't see that we always initialize ret in all situations where it is actually used. The one case where it's not initialized is when we BUG(), but gcc doesn't know that we won't then continue and use an uninitialized 'ret'. This patch results in code that does exactely the same as before, but it also makes gcc shut up, so we generate one less line of warning noise. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix sparse warningsArtem Bityutskiy2007-10-141-33/+37
| | | | | | | Fix "symbol shadows an earlier one" warnings. Although they are harmless but it does not hurt to fix them and make sparse happy. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix overflow bugVinit Agnihotri2007-07-181-3/+5
| | | | | | | | | | | | | | | | | | | | I was experiencing overflows in multiplications for volume->used_bytes in vmt.c & vtbl.c, while creating & resizing large volumes. vol->used_bytes is long long however its 2 operands vol->used_ebs & vol->usable_leb_size are int. So their multiplication for larger values causes integer overflows. Typecasting them solves the problem. My machine & flash details: 64Bit dual-core AMD opteron, 1 GB RAM, linux 2.6.18.3. mtd size = 6GB, volume size= 5GB, peb_size = 4MB. heres patch which does the fix. Signed-off-by: Vinit Agnihotri <vinit.agnihotri@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix debugging stuffArtem Bityutskiy2007-07-181-4/+16
| | | | | | | Do not check volumes which are currently in use because thay may be in inconsistent state. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: bugfix in error pathArtem Bityutskiy2007-07-181-2/+4
| | | | | | | | | When volume creation fails, we have to set ubi->volumes[vol_id] back to NULL. This patch also tweaks some debugging stuff. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
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