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* UBI: mtd/ubi/vtbl.c: fix memory leakAdrian Bunk2008-03-041-0/+1
| | | | | | | | | This patch fixes a memory leak introduced by commit 4ccf8cffa963c7b5bdc6d455ea9417084ee49aa8 and spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix sparse errors in ubi.hHarvey Harrison2008-03-041-5/+5
| | | | | | | | | | | | | | | | | In C, signed 1-bit bitfields can only take the values 0 and -1, only 0 and 1 are ever assigned in current code. Make them unsigned bitfields. Fixes the (repeated) sparse errors: drivers/mtd/ubi/ubi.h:220:15: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:221:17: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:222:18: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:223:16: error: dubious one-bit signed bitfield drivers/mtd/ubi/ubi.h:224:20: error: dubious one-bit signed bitfield Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
* UBI: fix error messageArtem Bityutskiy2008-03-041-2/+2
| | | | | | | Make it print "UBI error: cannot attach mtd4" instead of "UBI error: cannot attach 4" 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>
* Introduce path_put()Jan Blunck2008-02-151-2/+2
| | | | | | | | | | | | | | | | | | | * Add path_put() functions for releasing a reference to the dentry and vfsmount of a struct path in the right order * Switch from path_release(nd) to path_put(&nd->path) * Rename dput_path() to path_put_conditional() [akpm@linux-foundation.org: fix cifs] Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Cc: <linux-fsdevel@vger.kernel.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Embed a struct path into struct nameidata instead of nd->{dentry,mnt}Jan Blunck2008-02-151-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is the central patch of a cleanup series. In most cases there is no good reason why someone would want to use a dentry for itself. This series reflects that fact and embeds a struct path into nameidata. Together with the other patches of this series - it enforced the correct order of getting/releasing the reference count on <dentry,vfsmount> pairs - it prepares the VFS for stacking support since it is essential to have a struct path in every place where the stack can be traversed - it reduces the overall code size: without patch series: text data bss dec hex filename 5321639 858418 715768 6895825 6938d1 vmlinux with patch series: text data bss dec hex filename 5320026 858418 715768 6894212 693284 vmlinux This patch: Switch from nd->{dentry,mnt} to nd->path.{dentry,mnt} everywhere. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix cifs] [akpm@linux-foundation.org: fix smack] Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [MTD] [NAND] cs553x_nand: command line partitioning supportMart Raudsepp2008-02-091-3/+28
| | | | | | | | | | | | | | Implements kernel command line partitioning support for the CS5535/CS5536 chipsets driver. For that the following is done: * cs553x_cleanup(): try the cleanup for all chip selects to not leak memory * Assign a unique name for each chip select to be separately addressable in the command line mtd-id portion(s) * Use the already defined PIN_OPT_IDE constant where appropriate for readability * Include command line partitioning support when CONFIG_MTD_PARTS is set Signed-off-by: Mart Raudsepp <mart.raudsepp@artecdesign.ee> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2008-02-0751-2013/+4605
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (120 commits) [MTD] Fix mtdoops.c compilation [MTD] [NOR] fix startup lock when using multiple nor flash chips [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true [MTD] Fix maps/physmap.c compilation with CONFIG_PM [MTD] onenand: Add panic_write function to the onenand driver [MTD] mtdoops: Use the panic_write function when present [MTD] Add mtd panic_write function pointer [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support. [MTD] physmap.c: Add support for multiple resources [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179... [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver [MTD] [NAND] Remove unused variable in plat_nand_remove [MTD] Unlocking all Intel flash that is locked on power up. [MTD] [NAND] at91_nand: Make mtdparts option can override board info [MTD] mtdoops: Various minor cleanups [MTD] mtdoops: Ensure sequential write to the buffer [MTD] mtdoops: Perform write operations in a workqueue [MTD] mtdoops: Add further error return code checking [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c ...
| * [MTD] Fix mtdoops.c compilationDavid Woodhouse2008-02-071-0/+1
| | | | | | | | | | | | | | drivers/mtd/mtdoops.c: In function ‘mtdoops_console_sync’: drivers/mtd/mtdoops.c:329: error: implicit declaration of function ‘in_interrupt’ Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] [NOR] fix startup lock when using multiple nor flash chipsRizzo Davide2008-02-071-1/+1
| | | | | | | | | | | | | | | | | | | | Taken from http://bugzilla.kernel.org/show_bug.cgi?id=9829 I found and solved the problem, at line 115 of drivers/mtd/chips/gen_probe.c (kernel 2.6.24): mapsize value must be calculated in bytes, not in long. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] [DOC200x] eccbuf is statically defined and always evaluate to trueSamuel Tardieu2008-02-072-3/+3
| | | | | | | | | | | | | | Signed-off-by: Samuel Tardieu <sam@rfc1149.net> Acked-by: Joern Engel <joern@logfs.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] Fix maps/physmap.c compilation with CONFIG_PMakpm@linux-foundation.org2008-02-071-6/+8
| | | | | | | | | | Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] onenand: Add panic_write function to the onenand driverRichard Purdie2008-02-071-0/+108
| | | | | | | | | | | | | | | | | | Implement the panic_write function for the onenand driver. This waits for any active command to complete/timeout, performs the write, waits for it to complete and then returns. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] mtdoops: Use the panic_write function when presentRichard Purdie2008-02-071-5/+21
| | | | | | | | | | | | | | When the MTD provides a panic_write function, use it. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] Add mtd panic_write function pointerRichard Purdie2008-02-071-0/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MTDs are well suited for logging critical data and the mtdoops driver allows kernel panics/oops to be written to flash in a blackbox flight recorder fashion allowing better debugging and analysis of crashes. Any kernel oops in user context can be easily handled since the kernel continues as normal and any queued mtd writes are scheduled. Any kernel oops in interrupt context results in a panic and the delayed writes will not be scheduled however. The existing mtd->write function cannot be called in interrupt context so these messages can never be written to flash. This patch adds a panic_write function pointer that drivers can optionally implement which can be called in interrupt context. It is only intended to be called when its known the kernel is about to panic and we need to write to succeed. Since the kernel is not going to be running for much longer, this function can break locks and delay to ensure the write succeeds (but not sleep). Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support.Scott Wood2008-02-073-0/+1254
| | | | | | | | | | | | Signed-off-by: Nick Spence <nick.spence@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] physmap.c: Add support for multiple resourcesStefan Roese2008-02-031-58/+104
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch extends the physmap mapping driver to support multiple resources for non-identical NOR chips that will be concatenated together when selected. This is needed for example for Intel 48F4400 512MBit chips, since they consist of 2 single different NOR chips with different geometries. The first (lower) one has botton boot sectors and the 2nd (upper) has top boot sectors. This currently isn't handled correctly by calling the physmap driver once with only one resource covering both chips in one memory region. The same geometrie is used for both chips. With this patch the following resource structure can be used to describe the 48F4400 chip correctly: static struct resource board_nor_resource[] = { [0] = { .start = 0xf8000000, .end = 0xfbffffff, .flags = IORESOURCE_MEM, }, [1] = { .start = 0xfc000000, .end = 0xffffffff, .flags = IORESOURCE_MEM, } }; Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179...Scott Wood2008-02-031-2/+2
| | | | | | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * Merge git://git.infradead.org/~dedekind/ubi-2.6David Woodhouse2008-02-0310-164/+350
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| | * UBI: do not flush queue on each vtbl changeArtem Bityutskiy2008-02-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | This is just not necessary. We re-write whole layout copy, so the old contents cannot show up again sice scan process will drop it. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: implement atomic LEB change ioctlArtem Bityutskiy2008-01-253-28/+183
| | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: handle zero-length caseArtem Bityutskiy2008-01-251-0/+11
| | | | | | | | | | | | | | | | | | | | | ubi_eba_atomic_leb_change() has to just map the LEB to a free PEB if data length is zero. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: simplify internal interfacesArtem Bityutskiy2008-01-253-36/+36
| | | | | | | | | | | | | | | | | | | | | Instead of passing vol_id to all functions and then find struct ubi_volume, pass struct ubi_volume pointer. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: do not change file pointer while updatingArtem Bityutskiy2008-01-252-4/+1
| | | | | | | | | | | | | | | | | | | | | Since we do not change semantics of seek(), changing the file pointer while updating does not make much sense. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: add layout volume informationArtem Bityutskiy2008-01-253-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | Add more information about layout volume to make userspace tools use the macros instead of constants. Also rename UBI_LAYOUT_VOL_ID to make it consistent with other macros. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: fix warningsArtem Bityutskiy2008-01-252-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Old gcc complains: CC drivers/mtd/ubi/wl.o drivers/mtd/ubi/wl.c: In function 'wear_leveling_worker': drivers/mtd/ubi/wl.c:746: warning: 'pe' may be used uninitialized in this function CC drivers/mtd/ubi/scan.o drivers/mtd/ubi/scan.c: In function 'ubi_scan': drivers/mtd/ubi/scan.c:772: warning: 'ec' may be used uninitialized in this function drivers/mtd/ubi/scan.c:772: note: 'ec' was declared here Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: add sanity checkArtem Bityutskiy2008-01-251-1/+6
| | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: remove bogus assertionArtem Bityutskiy2008-01-251-1/+0
| | | | | | | | | | | | Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: bugfix: calculate data offset properlyArtem Bityutskiy2008-01-251-1/+1
| | | | | | | | | | | | | | | | | | | | | Data offset is VID header offset + VID header size aligned to the min. I/O unit size up. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: amend array sizeArtem Bityutskiy2008-01-251-2/+2
| | | | | | | | | | | | | | | | | | | | | Since the data offset parameter was removed, the size of the parameters array is now 2, not 3. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: add auto-resize featureArtem Bityutskiy2008-01-256-24/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Bityutskiy2008-01-252-19/+9
| | | | | | | | | | | | | | | | | | Save 12 bytes of RAM per volume by using bit-fields instead of integers. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: fix warningsArtem Bityutskiy2008-01-252-11/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/mtd/ubi/cdev.c: In function ‘vol_cdev_read’: drivers/mtd/ubi/cdev.c:187: warning: unused variable ‘vol_id’ CC [M] drivers/mtd/ubi/kapi.o drivers/mtd/ubi/kapi.c: In function ‘ubi_leb_erase’: drivers/mtd/ubi/kapi.c:483: warning: unused variable ‘vol_id’ drivers/mtd/ubi/kapi.c: In function ‘ubi_leb_unmap’: drivers/mtd/ubi/kapi.c:544: warning: unused variable ‘vol_id’ drivers/mtd/ubi/kapi.c: In function ‘ubi_leb_map’: drivers/mtd/ubi/kapi.c:582: warning: unused variable ‘vol_id’ Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| | * UBI: get rid of ubi_ltree_slabArtem Bityutskiy2008-01-253-33/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | This slab cache is not really needed since the number of objects is low and the constructor does not make much sense because we allocate oblects when doint I/O, which is way slower then allocation. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
| * | [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytesBryan Wu2008-02-031-6/+10
| | | | | | | | | | | | | | | Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driverBryan Wu2008-02-031-3/+0
| | | | | | | | | | | | | | | | | | | | | There is no suspend/resume operation in NFC driver at all, currently. Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | [MTD] [NAND] Remove unused variable in plat_nand_removeLi Zefan2008-02-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | With CONFIG_MTD_PARTITIONS not set, got this: drivers/mtd/nand/plat_nand.c:113: warning: unused variable 'pdata' Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | Merge git://git.infradead.org/~kmpark/onenand-mtd-2.6David Woodhouse2008-02-031-31/+28
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| | * | [MTD] [OneNAND] Use pre-alloced oob buffer instead of local bufferKyungmin Park2008-01-291-4/+5
| | | | | | | | | | | | | | | | Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] Use the u_char instead of char in oobbufSheng Yongjie (Sam2008-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In function onenand_verify_oob, local variable oobbuf shall be unsigned char. In the case of a value is >= 0x80, it's unequal in comparing the value in an unsigned char and signed char. Signed-off-by: Sheng Yongjie (Sam) <samsheng@trident.com.cn> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] Check the initial bad block using ONENAND_CTRL_ERRORKyungmin Park2008-01-291-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | Some chips don't set the ONENAND_CTRL_LOAD bit. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] Get correct density from device IDKyungmin Park2008-01-291-4/+16
| | | | | | | | | | | | | | | | | | | | | | | | Use the higher bits for other purpose. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] Consolidate OneNAND operation orderKyungmin Park2008-01-291-15/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Consolidate OneNAND operation order as OneNAND Spec. It also doesn't break previous operation order. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] fix call to onenand_verify when writing subpagesAdrian Hunter2008-01-291-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| | * | [MTD] [OneNAND] Do not release chip twiceAdrian Hunter2008-01-291-3/+0
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
| * | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse2008-02-032-9/+10
| |\ \ \
| * | | | [MTD] Unlocking all Intel flash that is locked on power up.Justin Treon2008-02-034-9/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch for unlocking all Intel flash that has instant locking on power up. The patch has been tested on Intel M18, P30 and J3D Strata Flash. 1. The automatic unlocking can be disabled for a particular partition in the map or the command line. a. For the bit mask in the map it should look like: .mask_flags = MTD_POWERUP_LOCK, b. For the command line parsing it should look like: mtdparts=0x80000(bootloader)lk 2. This will only unlock parts with instant individual block locking. Intel parts with legacy unlocking will not be unlocked. Signed-off-by: Justin Treon <justin_treon@yahoo.com> Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] [NAND] at91_nand: Make mtdparts option can override board infoAtsushi Nemoto2008-02-031-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call parse_mtd_partitions before checking board's partition_info, so that "mtdparts=" option can override board's default setting. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] mtdoops: Various minor cleanupsRichard Purdie2008-02-031-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various minor cleaups to mtdoops: * Don't support the mtd->erasesize < OOPS_PAGE_SIZE case * Tweak printks and make the device mtdoops connects to more visible * CON_PRINTBUFFER flag is uneeded Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | | [MTD] mtdoops: Ensure sequential write to the bufferRichard Purdie2008-02-031-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a spinlock to ensure writes to the mtdoops buffer memory are sequential and don't race. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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