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2014-11-04f2fs: remove pointless bit testing in f2fs_delete_entry()Jan Kara1-1/+1
There's no point in using test_and_clear_bit_le() when we don't use the return value of the function. Just use clear_bit_le() instead. Coverity-id: 1016434 Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: do not discard data protected by the previous checkpointJaegeuk Kim1-1/+1
We should not discard any data protected by the previous checkpoint all the time. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: flush_dcache_page for inline dataJaegeuk Kim1-0/+1
When reading inline data, we should call flush_dcache_page. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: call write_checkpoint under disabled gcJaegeuk Kim1-0/+2
During the write_checkpoint, we should avoid f2fs_gc trigger to avoid any filesystem consistency. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: fix possible data corruption in f2fs_write_begin()Jan Kara1-13/+11
f2fs_write_begin() doesn't initialize the 'dn' variable if the inode has inline data. However it uses its contents to decide whether it should just zero out the page or load data to it. Thus if we are unlucky we can zero out page contents instead of loading inline data into a page. CC: stable@vger.kernel.org CC: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: use current_sit_addr to replace the open codeGu Zheng1-11/+1
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: rename f2fs_set/clear_bit to f2fs_test_and_set/clear_bitGu Zheng2-4/+4
Rename f2fs_set/clear_bit to f2fs_test_and_set/clear_bit, which mean set/clear bit and return the old value, for better readability. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: set raw_super default to NULL to avoid compile warningGu Zheng1-1/+1
Set raw_super default to NULL to avoid the possibly used uninitialized warning, though we may never hit it in fact. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: introduce f2fs_change_bit to simplify the change bit logicGu Zheng3-8/+11
Introduce f2fs_change_bit to simplify the change bit logic in function set_to_next_nat{sit}. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: remove the redundant function cond_clear_inode_flagGu Zheng2-11/+2
Use clear_inode_flag to replace the redundant cond_clear_inode_flag. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: remove the seems unneeded argument 'type' from __get_victimGu Zheng1-3/+5
Remove the unneeded argument 'type' from __get_victim, use NO_CHECK_TYPE directly when calling v_ops->get_victim(). Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: avoid returning uninitialized value to userspace from f2fs_trim_fs()Jan Kara1-1/+1
If user specifies too low end sector for trimming, f2fs_trim_fs() will use uninitialized value as a number of trimmed blocks and returns it to userspace. Initialize number of trimmed blocks early to avoid the problem. Coverity-id: 1248809 CC: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: declare f2fs_convert_inline_dir as a static functionJaegeuk Kim1-1/+1
This patch declares f2fs_convert_inline_dir as a static function, which was reported by kbuild test robot. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: use kmap_atomic instead of kmapJaegeuk Kim1-9/+8
For better performance, we need to use kmap_atomic instead of kmap. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: reuse make_empty_dir code for inline_dentryJaegeuk Kim3-33/+31
This patch introduces do_make_empty_dir to mitigate code redundancy for inline_dentry. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: introduce f2fs_dentry_ptr structure for code clean-upJaegeuk Kim3-46/+68
This patch introduces f2fs_dentry_ptr structure for the use of a function parameter in inline_dentry operations. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: should not truncate any inline_dentryJaegeuk Kim1-1/+1
If the inode has inline_dentry, we should not truncate any block indices. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: reuse core function in f2fs_readdir for inline_dentryJaegeuk Kim3-58/+48
This patch introduces a core function, f2fs_fill_dentries, to remove redundant code in f2fs_readdir and f2fs_read_inline_dir. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: fix counting inline_data inode numbersJaegeuk Kim2-4/+2
This patch fixes wrongly counting inline_data inode numbers. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: add stat info for inline_dentry inodesJaegeuk Kim5-3/+22
This patch adds status information for inline_dentry inodes. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: avoid deadlock on init_inode_metadataJaegeuk Kim7-22/+157
Previously, init_inode_metadata does not hold any parent directory's inode page. So, f2fs_init_acl can grab its parent inode page without any problem. But, when we use inline_dentry, that page is grabbed during f2fs_add_link, so that we can fall into deadlock condition like below. INFO: task mknod:11006 blocked for more than 120 seconds. Tainted: G OE 3.17.0-rc1+ #13 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mknod D ffff88003fc94580 0 11006 11004 0x00000000 ffff880007717b10 0000000000000002 ffff88003c323220 ffff880007717fd8 0000000000014580 0000000000014580 ffff88003daecb30 ffff88003c323220 ffff88003fc94e80 ffff88003ffbb4e8 ffff880007717ba0 0000000000000002 Call Trace: [<ffffffff8173dc40>] ? bit_wait+0x50/0x50 [<ffffffff8173d4cd>] io_schedule+0x9d/0x130 [<ffffffff8173dc6c>] bit_wait_io+0x2c/0x50 [<ffffffff8173da3b>] __wait_on_bit_lock+0x4b/0xb0 [<ffffffff811640a7>] __lock_page+0x67/0x70 [<ffffffff810acf50>] ? autoremove_wake_function+0x40/0x40 [<ffffffff811652cc>] pagecache_get_page+0x14c/0x1e0 [<ffffffffa029afa9>] get_node_page+0x59/0x130 [f2fs] [<ffffffffa02a63ad>] read_all_xattrs+0x24d/0x430 [f2fs] [<ffffffffa02a6ca2>] f2fs_getxattr+0x52/0xe0 [f2fs] [<ffffffffa02a7481>] f2fs_get_acl+0x41/0x2d0 [f2fs] [<ffffffff8122d847>] get_acl+0x47/0x70 [<ffffffff8122db5a>] posix_acl_create+0x5a/0x150 [<ffffffffa02a7759>] f2fs_init_acl+0x29/0xcb [f2fs] [<ffffffffa0286a8d>] init_inode_metadata+0x5d/0x340 [f2fs] [<ffffffffa029253a>] f2fs_add_inline_entry+0x12a/0x2e0 [f2fs] [<ffffffffa0286ea5>] __f2fs_add_link+0x45/0x4a0 [f2fs] [<ffffffffa028b5b6>] ? f2fs_new_inode+0x146/0x220 [f2fs] [<ffffffffa028b816>] f2fs_mknod+0x86/0xf0 [f2fs] [<ffffffff811e3ec1>] vfs_mknod+0xe1/0x160 [<ffffffff811e4b26>] SyS_mknod+0x1f6/0x200 [<ffffffff81741d7f>] tracesys+0xe1/0xe6 Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: fix to wait correct block typeJaegeuk Kim2-3/+4
The inode page needs to wait NODE block io. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: reuse find_in_block code for find_in_inline_dirJaegeuk Kim3-63/+65
This patch removes redundant copied code in find_in_inline_dir. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: reuse room_for_filename for inline dentry operationJaegeuk Kim3-37/+12
This patch introduces to reuse the existing room_for_filename for inline dentry operation. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: update f2fs documentation for inline dir supportChao Yu1-0/+4
This patch adds descriptions for the inline dir support in f2fs document. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: enable inline dir handlingChao Yu5-15/+58
Add inline dir functions into normal dir ops' function to handle inline ops. Besides, we enable inline dir mode when a new dir inode is created if inline_data option is on. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: add key function to handle inline dirChao Yu2-0/+355
Adds Functions to implement inline dir init/lookup/insert/delete/convert ops. Signed-off-by: Chao Yu <chao2.yu@samsung.com> [Jaegeuk Kim: remove needless reserved area copy, pointed by Dan Carpenter] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: export dir operations for inline dirChao Yu4-37/+50
This patch exports some dir operations for inline dir, additionally introduces f2fs_drop_nlink from f2fs_delete_entry for reusing by inline dir function. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: add a new mount option for inline dirChao Yu1-0/+7
Adds a new mount option 'inline_dentry' for inline dir. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: add infra struct and helper for inline dirChao Yu2-2/+38
This patch defines macro/inline dentry structure, and adds some helpers for inline dir infrastructure. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: avoid infinite loop at cp_errorJaegeuk Kim1-0/+3
This patch avoids an infinite loop in sync_dirty_inode_page when -EIO was detected. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: avoid build warningJaegeuk Kim1-1/+1
This patch removes build warning. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: fix to call f2fs_unlock_opJaegeuk Kim1-1/+2
This patch fixes to call f2fs_unlock_op, which was missing before. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: avoid to allocate when inline_data was writtenJaegeuk Kim2-13/+45
The sceanrio is like this. inline_data i_size page write_begin/vm_page_mkwrite X 30 dirty_page X 30 write to #4096 position X 30 get_dnode_of_data wait for get_dnode_of_data O 30 write inline_data O 30 get_dnode_of_data O 30 reserve data block .. In this case, we have #0 = NEW_ADDR and inline_data as well. We should not allow this condition for further access. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: use highmem for directory pagesJaegeuk Kim2-2/+3
This patch fixes to use highmem for directory pages. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: fix race conditon on truncation with inline_dataJaegeuk Kim1-0/+6
Let's consider the following scenario. blkaddr[0] inline_data i_size i_blocks writepage truncate NEW X 4096 2 dirty page #0 NEW X 0 change i_size NEW X 0 2 f2fs_write_inline_data NEW X 0 2 get_dnode_of_data NEW X 0 2 truncate_data_blocks_range NULL O 0 1 memcpy(inline_data) NULL O 0 1 f2fs_put_dnode NULL O 0 1 f2fs_truncate NULL O 0 1 get_dnode_of_data NULL O 0 1 *invalid block addr* This patch adds checking inline_data flag during f2fs_truncate not to refer corrupted block indices. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: should truncate any allocated block for inline_data writeJaegeuk Kim1-7/+8
When trying to write inline_data, we should truncate any data block allocated and pointed by the inode block. We should consider the data index is not 0. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: invalidate inmemory pageJaegeuk Kim3-0/+20
If user truncates file's data, we should truncate inmemory pages too. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04f2fs: do not make dirty any inmemory pagesJaegeuk Kim4-5/+22
This patch let inmemory pages be clean all the time. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-04Merge branch 'for-linus' of ↵Linus Torvalds3-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k Pull m68k update from Geert Uytterhoeven. Just wiring up the bpf system call. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Wire up bpf
2014-11-04Merge tag 'armsoc-for-rc3' of ↵Linus Torvalds9-50/+46
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A surprisingly small batch of fixes for -rc3. Suspiciously small, I'd say. Anyway, most of this are a few defconfig updates. Some for omap to deal with kernel binary size (moving ipv6 to module, etc). A larger one for socfpga that refreshes with some churn, but also turns on a few options that makes the newly-added board in my bootfarm usable for testing. OMAP3 will also now warn when booted with legacy (non-DT) boot protocols, hopefully encouraging those who still care about some of those platforms to submit DT support and report bugs where needed. Nothing stops working though, this is just to warn for future deprecation. Beyond this, very few actual bugfixes. A PXA fix for DEBUG_LL boot hangs, a missing terminting entry in a dt_match array on RealView a MTD fix on OMAP with NAND" [ Obviously missed rc3, will make rc4 instead ;) ] * tag 'armsoc-for-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: MAINTAINERS: drop list entry for davinci ARM: OMAP2+: Warn about deprecated legacy booting mode ARM: omap2plus_defconfig: Fix errors with NAND BCH ARM: multi_v7_defconfig: fix support for APQ8084 soc: versatile: Add terminating entry for realview_soc_of_match ARM: ixp4xx: remove compilation warnings in io.h MAINTAINERS: Add Soren as reviewer for Zynq ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in ARM: socfpga_defconfig: Update defconfig for SoCFPGA ARM: pxa: fix hang on startup with DEBUG_LL
2014-11-03Linux 3.18-rc3v3.18-rc3Linus Torvalds1-2/+2
2014-11-03Merge tag 'for-linus-20141102' of git://git.infradead.org/linux-mtdLinus Torvalds6-39/+73
Pull MTD fixes from Brian Norris: "Three main MTD fixes for 3.18: - A regression from 3.16 which was noticed in 3.17. With the restructuring of the m25p80.c driver and the SPI NOR library framework, we omitted proper listing of the SPI device IDs. This means m25p80.c wouldn't auto-load (modprobe) properly when built as a module. For now, we duplicate the device IDs into both modules. - The OMAP / ELM modules were depending on an implicit link ordering. Use deferred probing so that the new link order (in 3.18-rc) can still allow for successful probing. - Fix suspend/resume support for LH28F640BF NOR flash" * tag 'for-linus-20141102' of git://git.infradead.org/linux-mtd: mtd: cfi_cmdset_0001.c: fix resume for LH28F640BF chips mtd: omap: fix mtd devices not showing up mtd: m25p80,spi-nor: Fix module aliases for m25p80 mtd: spi-nor: make spi_nor_scan() take a chip type name, not spi_device_id mtd: m25p80: get rid of spi_get_device_id
2014-11-03Merge tag 'scsi-for-linus' of ↵Linus Torvalds6-19/+53
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of six patches consisting of: - two MAINTAINER updates - two scsi-mq fixs for the old parallel interface (not every request is tagged and we need to set the right flags to populate the SPI tag message) - a fix for a memory leak in scatterlist traversal caused by a preallocation update in 3.17 - an ipv6 fix for cxgbi" [ The scatterlist fix also came in separately through the block layer tree ] * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: MAINTAINERS: ufs - remove self MAINTAINERS: change hpsa and cciss maintainer libcxgbi : support ipv6 address host_param scsi: set REQ_QUEUE for the blk-mq case Revert "block: all blk-mq requests are tagged" lib/scatterlist: fix memory leak with scsi-mq
2014-11-03Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds22-83/+116
Pull drm fixes from Dave Airlie: "Nothing too astounding or major: radeon, i915, vmwgfx, armada and exynos. Biggest ones: - vmwgfx has one big locking regression fix - i915 has come displayport fixes - radeon has some stability and a memory alloc failure - armada and exynos have some vblank fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (24 commits) drm/exynos: correct connector->dpms field before resuming drm/exynos: enable vblank after DPMS on drm/exynos: init kms poll at the end of initialization drm/exynos: propagate plane initialization errors drm/exynos: vidi: fix build warning drm/exynos: remove explicit encoder/connector de-initialization drm/exynos: init vblank with real number of crtcs drm/vmwgfx: Filter out modes those cannot be supported by the current VRAM size. drm/vmwgfx: Fix hash key computation drm/vmwgfx: fix lock breakage drm/i915/dp: only use training pattern 3 on platforms that support it drm/radeon: remove some buggy dead code drm/i915: Ignore VBT backlight check on Macbook 2, 1 drm/radeon: remove invalid pci id drm/radeon: dpm fixes for asrock systems radeon: clean up coding style differences in radeon_get_bios() drm/radeon: Use drm_malloc_ab instead of kmalloc_array drm/radeon/dpm: disable ulv support on SI drm/i915: Fix GMBUSFREQ on vlv/chv drm/i915: Ignore long hpds on eDP ports ...
2014-11-03Merge tag 'fixes-against-v3.18-rc2' of ↵Olof Johansson453-4850/+14972
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Merge "omap fixes against v3.18-rc2" from Tony Lindgren: Few fixes for omaps to enable NAND BCH so devices won't produce errors when booted with omap2plus_defconfig, and reduce bloat by making IPV6 a loadable module. Also let's add a warning about legacy boot being deprecated for omap3. We now have things working with device tree, and only omap3 is still booting in legacy mode. So hopefully this warning will help move the remaining legacy mode users to boot with device tree. As the total reduction of code and static data is somewhere around 20000 lines of code once we remove omap3 legacy mode booting, we really do want to make omap3 to boot also in device tree mode only over the next few merge cycles. * tag 'fixes-against-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (407 commits) ARM: OMAP2+: Warn about deprecated legacy booting mode ARM: omap2plus_defconfig: Fix errors with NAND BCH ARM: omap2plus_defconfig: Fix bloat caused by having ipv6 built-in + Linux 3.18-rc2 Signed-off-by: Olof Johansson <olof@lixom.net>
2014-11-02Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds5-9/+23
Pull ARM fixes from Russell King: - add the new bpf syscall to ARM. - drop a redundant return statement in __iommu_alloc_remap() - fix a performance issue noticed by Thomas Petazzoni with kmap_atomic(). - fix an issue with the L2 cache OF parsing code which caused it to incorrectly print warnings on each boot, and make the warning text more consistent with the rest of the code * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 8180/1: mm: implement no-highmem fast path in kmap_atomic_pfn() ARM: 8183/1: l2c: Improve l2c310_of_parse() error message ARM: 8181/1: Drop extra return statement ARM: 8182/1: l2c: Make l2x0_cache_size_of_parse() return 'int' ARM: enable bpf syscall
2014-11-02Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2-16/+45
Pull kvm fixes from Paolo Bonzini: "A small set of x86 fixes. The most serious is an SRCU lockdep fix. A bit late - needed some time to test the SRCU fix, which only came in on Friday" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: vmx: defer load of APIC access page address during reset KVM: nVMX: Disable preemption while reading from shadow VMCS KVM: x86: Fix far-jump to non-canonical check KVM: emulator: fix execution close to the segment limit KVM: emulator: fix error code for __linearize
2014-11-02Merge branch 'exynos-drm-fixes' of ↵Dave Airlie7-42/+29
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes This pull-request includes some bug fixes and code cleanups. Especially, this fixes the bind failure issue occurred when it tries to re-bind Exynos drm driver after unbound, and the modetest failure issue incurred by not having a pair to vblank on and off requests. * 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: correct connector->dpms field before resuming drm/exynos: enable vblank after DPMS on drm/exynos: init kms poll at the end of initialization drm/exynos: propagate plane initialization errors drm/exynos: vidi: fix build warning drm/exynos: remove explicit encoder/connector de-initialization drm/exynos: init vblank with real number of crtcs
2014-11-02Merge branch 'for-linus' of ↵Linus Torvalds9-58/+50
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS fixes from Al Viro: "A bunch of assorted fixes, most of them followups to overlayfs merge" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: ovl: initialize ->is_cursor Return short read or 0 at end of a raw device, not EIO isofs: don't bother with ->d_op for normal case isofs_cmp(): we'll never see a dentry for . or .. overlayfs: fix lockdep misannotation ovl: fix check for cursor overlayfs: barriers for opening upper-layer directory rcu: Provide counterpart to rcu_dereference() for non-RCU situations staging: android: logger: Fix log corruption regression
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