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* dmaengine: pch_dma: Replace pci_pool_alloc by pci_pool_zallocSouptick Joarder2016-11-291-2/+1
| | | | | | | | Inside pdc_alloc_desc(), pci_pool_alloc() followed by memset will be replaced by pci_pool_zalloc() Signed-off-by: Souptick joarder <jrdr.linux@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: rcar-dmac: Document R-Car M3-W bindingsUlrich Hecht2016-11-251-0/+1
| | | | | | | Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: sun6i: fix the uninitialized value for v_lliHao Zhang2016-11-251-1/+1
| | | | | | | | | | dma_pool_alloc does not initialize the value of the newly allocated block for the v_lli, and the uninitilize value make the tests failed which is on pine64 with dmatest. we can fix it just change the "|=" to "=" for the v_lli->cfg. Signed-off-by: Hao Zhang <hao5781286@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: mv_xor: use builtin_platform_driverGeliang Tang2016-11-251-6/+1
| | | | | | | Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: mv_xor: Add support for scatter-gather DMA modeStefan Roese2016-11-252-4/+180
| | | | | | | | | | | | | This patch adds memory to memory scatter-gather support to the Marvell mv_or DMA driver. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Marcin Wojtas <mw@semihalf.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: hsu: pci: switch to new API for IRQ allocationAndy Shevchenko2016-11-251-3/+5
| | | | | | | | There is new API in place which provides allocation mechanism of interrupts for PCI devices. Use it in the HSU DMA driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: imx-sdma - correct the dma transfer residue calculationNandor Han2016-11-251-4/+9
| | | | | | | | | | | | | | | | | | | | | | The residue calculation was taking in consideration that dma transaction status will be always retrieved in the dma callback used to inform that dma transfer is complete. However this is not the case for all subsystems that use dma. Some subsystems use a timer to check the dma status periodically. Therefore the calculation was updated and residue is calculated accordingly by a) update the residue calculation taking in consideration the last used buffer index by using *buf_ptail* variable and b) chn_real_count (number of bytes transferred) is initialized to zero, when dma channel is created, to avoid using an uninitialized value in residue calculation when dma status is checked without waiting dma complete event. Signed-off-by: Nandor Han <nandor.han@ge.com> Acked-by: Peter Senna Tschudin <peter.senna@collabora.com> Tested-by: Peter Senna Tschudin <peter.senna@collabora.com> Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: pl330: Handle xferred count if DMAMOV hasn't finishedStephen Barber2016-11-141-0/+5
| | | | | | | | | | After executing DMAGO it's possible that a request can come in for the current xferred count, but if that happens too soon then DMAMOV SAR/DAR may not have yet completed. If that happens, we should explicitly return 0 since nothing has been transferred yet. Signed-off-by: Stephen Barber <smbarber@chromium.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: nbpfaxi: add optional max-burst property for memory reads/writesNiklas Cassel2016-11-142-4/+42
| | | | | | | | | | | | | | | | | | Due to a hardware bug, reading memory (from the Accelerator Coherency Port) with a burst size equal to the maximum burst size allowed by the DMA hardware's buffer size will cause a hardware hang on the ARTPEC-6 SoC, where the only solution is a manual power cycle. On ARTPEC-6, this hardware bug does not trigger when writing memory (to the Accelerator Coherency Port) with a burst size equal to the maximum burst size allowed by the DMA hardware's buffer size. To avoid this hardware hang, introduce a new optional max-burst property for memory reads. For completeness, also introduce a max-burst property for memory writes. Signed-off-by: Niklas Cassel <niklas.cassel@axis.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: tegra210-adma: convert TEGRA210_ADMA from bool to tristatePaul Gortmaker2016-11-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This driver currently uses modular infrastructure but is controlled by a bool Kconfig. There is a general consensus from the DMA reviewers and maintainers that "if it can be modular, it should be modular" in order to keep the bzImage size under control for multi platform kernels. Build tested only. Also needed some new pm_clk symbols exported before this commit is applied to tree in order to avoid modpost errors like: ERROR: "pm_clk_add_clk" [drivers/dma/tegra210-adma.ko] undefined! ERROR: "pm_clk_create" [drivers/dma/tegra210-adma.ko] undefined! ERROR: "pm_clk_destroy" [drivers/dma/tegra210-adma.ko] undefined! ERROR: "pm_clk_suspend" [drivers/dma/tegra210-adma.ko] undefined! ERROR: "pm_clk_resume" [drivers/dma/tegra210-adma.ko] undefined! These were added as exports in the v4.8-rc1 merge window. Cc: Laxman Dewangan <ldewangan@nvidia.com> Cc: Jon Hunter <jonathanh@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Vinod Koul <vinod.koul@intel.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Alexandre Courbot <gnurou@gmail.com> Cc: dmaengine@vger.kernel.org Cc: linux-tegra@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* dmaengine: fsl_raid: Fix module autoloadJavier Martinez Canillas2016-11-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/dma/fsl_raid.ko | grep alias $ After this patch: $ modinfo drivers/dma/fsl_raid.ko | grep alias alias: of:N*T*Cfsl,raideng-v1.0C* alias: of:N*T*Cfsl,raideng-v1.0 Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
* Linux 4.9-rc1v4.9-rc1Linus Torvalds2016-10-151-2/+2
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* Merge tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befsLinus Torvalds2016-10-158-283/+244
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull befs fixes from Luis de Bethencourt: "I recently took maintainership of the befs file system [0]. This is the first time I send you a git pull request, so please let me know if all the below is OK. Salah Triki and myself have been cleaning the code and fixing a few small bugs. Sorry I couldn't send this sooner in the merge window, I was waiting to have my GPG key signed by kernel members at ELCE in Berlin a few days ago." [0] https://lkml.org/lkml/2016/7/27/502 * tag 'befs-v4.9-rc1' of git://github.com/luisbg/linux-befs: (39 commits) befs: befs: fix style issues in datastream.c befs: improve documentation in datastream.c befs: fix typos in datastream.c befs: fix typos in btree.c befs: fix style issues in super.c befs: fix comment style befs: add check for ag_shift in superblock befs: dump inode_size superblock information befs: remove unnecessary initialization befs: fix typo in befs_sb_info befs: add flags field to validate superblock state befs: fix typo in befs_find_key befs: remove unused BEFS_BT_PARMATCH fs: befs: remove ret variable fs: befs: remove in vain variable assignment fs: befs: remove unnecessary *befs_sb variable fs: befs: remove useless initialization to zero fs: befs: remove in vain variable assignment fs: befs: Insert NULL inode to dentry fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirect ...
| * befs: befs: fix style issues in datastream.cLuis de Bethencourt2016-10-081-15/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing the following checkpatch.pl errors: ERROR: "foo * bar" should be "foo *bar" + befs_blocknr_t blockno, befs_block_run * run); WARNING: Missing a blank line after declarations + struct buffer_head *bh; + befs_debug(sb, "---> %s length: %llu", __func__, len); WARNING: Block comments use * on subsequent lines + /* + Double indir block, plus all the indirect blocks it maps. (and other instances of these) Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: improve documentation in datastream.cLuis de Bethencourt2016-10-081-95/+98
| | | | | | | | | | | | | | Convert function descriptions to kernel-doc style. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix typos in datastream.cLuis de Bethencourt2016-10-081-4/+4
| | | | | | | | | | Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix typos in btree.cLuis de Bethencourt2016-10-081-4/+3
| | | | | | | | | | | | | | Fixing typos in kernel-doc function descriptions in fs/befs/btree.c. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix style issues in super.cLuis de Bethencourt2016-10-081-7/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixing the following checkpatch.pl error: ERROR: "foo * bar" should be "foo *bar" +befs_load_sb(struct super_block *sb, befs_super_block * disk_sb) And the following warnings: WARNING: suspect code indent for conditional statements (8, 12) + if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_LE) + befs_sb->byte_order = BEFS_BYTESEX_LE; WARNING: suspect code indent for conditional statements (8, 12) + else if (disk_sb->fs_byte_order == BEFS_BYTEORDER_NATIVE_BE) + befs_sb->byte_order = BEFS_BYTESEX_BE; WARNING: break quoted strings at a space character + befs_error(sb, "blocksize(%u) cannot be larger" + "than system pagesize(%lu)", befs_sb->block_size, WARNING: line over 80 characters + if (befs_sb->log_start != befs_sb->log_end || befs_sb->flags == BEFS_DIRTY) { Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: fix comment styleLuis de Bethencourt2016-10-081-7/+3
| | | | | | | | | | | | | | | | | | | | | | The description of befs_load_sb was confusing the kernel-doc system since, because it starts with /**, it thinks it will document the function with kernel-doc formatting. Which it isn't. Fix other comment style issues in the file while we are at it. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: add check for ag_shift in superblockLuis de Bethencourt2016-10-081-0/+7
| | | | | | | | | | | | | | | | | | | | | | ag_shift and blocks_per_ag contain the same information in different ways, same as block_shift and block_size do. It is worth checking this two are consistent, but since blocks_per_ag isn't documented as mandatory to use some implementations of befs don't enforce this, so making it non-fatal if they don't match and just having it as a warning. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: dump inode_size superblock informationLuis de Bethencourt2016-10-081-0/+1
| | | | | | | | | | | | | | | | | | befs_dump_super_block() wasn't giving the inode_size information when dumping all elements of the superblock. Add this element to have complete information of the superblock. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: remove unnecessary initializationSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | There is no need to init block, since it will be overwitten later by iaddr2blockno(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_sb_infoSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | Fixing jornal to Journal. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: add flags field to validate superblock stateSalah Triki2016-10-082-1/+6
| | | | | | | | | | | | | | | | For validating superblock state, add flags field to befs_sb_info, read the state from the disk and check if it is equal to BEFS_DIRTY. Signed-off-by: Salah Triki <salah.triki@gmail.com> Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_find_keyLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | Fixing skeep to skip. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * befs: remove unused BEFS_BT_PARMATCHLuis de Bethencourt2016-10-082-19/+16
| | | | | | | | | | | | | | | | | | | | befs_btree_find(), the only caller of befs_find_key(), only cares about if the return from that function is BEFS_BT_MATCH or not. It never uses the partial match given with BEFS_BT_PARMATCH. Make the overflow return clearer by having BEFS_BT_OVERFLOW instead of BEFS_BT_PARMATCH. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Salah Triki <salah.triki@gmail.com>
| * fs: befs: remove ret variableSalah Triki2016-10-081-2/+1
| | | | | | | | | | | | | | | | ret is initialized to -EIO and is never modified, so remove ret and use -EIO directly. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove in vain variable assignmentSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | There is no need to init res, since it will be overwitten later by befs_fblock2brun(). Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove unnecessary *befs_sb variableSalah Triki2016-10-081-2/+1
| | | | | | | | | | | | | | | | Remove *befs_sb and just call BEFS_SB(sb) directly, since the returned value by this function is only used once. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove useless initialization to zeroSalah Triki2016-10-081-1/+1
| | | | | | | | | | | | | | | | node_off is unconditionally set to bt_super.root_node_ptr, so no need to init it to zero. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove in vain variable assignmentSalah Triki2016-10-081-2/+0
| | | | | | | | | | | | | | There is no need to set *value, it will be overwritten later. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Insert NULL inode to dentrySalah Triki2016-10-081-0/+1
| | | | | | | | | | | | | | | | As VFS expects, lookup inserts NULL inode to dentry when the named inode does not exist. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Remove useless calls to brelse in befs_find_brun_dblindirectSalah Triki2016-10-081-2/+0
| | | | | | | | | | | | | | | | The calls to brelse are useless since dbl_indir_block and indir_block are NULL. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Coding style fixSalah Triki2016-10-081-3/+3
| | | | | | | | | | | | | | Constant has to be capitalized. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: Remove redundant validation from befs_find_brun_directSalah Triki2016-10-081-8/+0
| | | | | | | | | | | | | | | | | | The only caller of befs_find_brun_direct is befs_fblock2brun, which already validates that the block is within the range of direct blocks. So remove the duplicate validation. Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: fix typo in befs_bt_read_node documentationLuis de Bethencourt2016-10-081-2/+2
| | | | | | | | | | | | Fixing a grammatical error in the documentation. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: in memory free_node_ptr and max_size never readLuis de Bethencourt2016-10-081-2/+0
| | | | | | | | | | | | | | | | The only place the values of free_node_ptr and max_size are read is in befs_dump_index_entry(), which both times it is called, it is passed the on disk superblock. Removing assignment of unused values. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: make consistent use of befs_error()Luis de Bethencourt2016-10-083-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | befs_error() is used in potential errors that could happen in befs to provide informational log messages. befs_debug() is silent when CONFIG_BEFS_DEBUG=no, and very verbose when switched on, which is why it is used for general debugging but not for errors. Fix a few cases where the befs debug utility usage isn't following the expected pattern. To make sure we have consistent information in the logs. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: use simpler while loopLuis de Bethencourt2016-10-081-36/+38
| | | | | | | | | | | | Replace goto with simpler while loop to make befs_readdir() more readable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * befs: remove constant variableLuis de Bethencourt2016-10-081-5/+2
| | | | | | | | | | | | | | Use macro directly instead of via assigning it to an unchanging variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
| * befs: avoid dereferencing dentry twiceLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | No need to dereference dentry twice to get the name when we already have it stored in a local variable. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: remove comment that confuses kernel-docLuis de Bethencourt2016-10-081-4/+0
| | | | | | | | | | | | | | | | This comment with a mysterious unfinished line confuses the kernel-doc system since, because it starts with /**, it thinks it is documenting a function. Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
| * fs: befs: check silent flag before logging errorLuis de Bethencourt2016-10-081-1/+2
| | | | | | | | | | | | | | | | Log error only when silent flag is not set. Fixes: dbe6460388bc ("fs/befs/linuxvfs.c: check silent flag before logging errors") Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Acked-by: Salah Triki <salah.triki@gmail.com>
| * fs: befs: replace befs_bread by sb_breadSalah Triki2016-10-084-30/+4
| | | | | | | | | | | | | | | | | | Since befs_bread merely calls sb_bread, replace it by sb_bread. Link: http://lkml.kernel.org/r/1466800258-4542-1-git-send-email-salah.triki@gmail.com Signed-off-by: Salah Triki <salah.triki@gmail.com> Acked-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: remove unused functionsLuis de Bethencourt2016-10-081-12/+0
| | | | | | | | | | | | | | | | befs_iaddr_is_empty() and befs_brun_size() are unused. Remove them. Link: http://lkml.kernel.org/r/1465700235-22881-3-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: fix function name in documentationLuis de Bethencourt2016-10-081-1/+1
| | | | | | | | | | | | | | | | | | Documentation of function befs_load_cb() lists it as load_befs_sb(). Fix the misnomer. Link: http://lkml.kernel.org/r/1465700235-22881-2-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * befs: check return of sb_min_blocksizeLuis de Bethencourt2016-10-081-1/+6
| | | | | | | | | | | | | | | | Confirm sb_min_blocksize() succeeded before continuing. Link: http://lkml.kernel.org/r/1465700235-22881-1-git-send-email-luisbg@osg.samsung.com Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * fs: befs: remove useless pr_err in befs_init_inodecache()Salah Triki2016-10-081-4/+2
| | | | | | | | | | | | | | Remove pr_err since kmem_cache_create log error and dump stack. Link: http://lkml.kernel.org/r/e6d03cbc9542495dc6174b59e32fcd41c1393cfc.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org>
| * fs/befs/linuxvfs.c: remove useless befs_errorSalah Triki2016-10-081-2/+0
| | | | | | | | | | | | | | | | | | Remove befs_error since when kmalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/3de4d388d98bbb570462a5eb8e64623e17fb5d74.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * fs/befs/linuxvfs.c: remove useless pr_err in befs_fill_super()Salah Triki2016-10-081-4/+2
| | | | | | | | | | | | | | | | | | Remove pr_err since when kzalloc fails there is a generic out of memory and stack dump. Link: http://lkml.kernel.org/r/c5a7f2d42ec0fc8465c118248e88cd221c483391.1464226521.git.salah.triki@acm.org Signed-off-by: Salah Triki <salah.triki@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>