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2018-05-31f2fs: issue all big range discards in umount processYunlei He1-0/+1
This patch modify max_requests to UINT_MAX, to issue all big range discards in umount. Signed-off-by: Yunlei He <heyunlei@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-31f2fs: remove redundant block plugChao Yu1-3/+0
For buffered IO, we don't need to use block plug to cache bio, for direct IO, generic f2fs_direct_IO has already added block plug, so let's remove redundant one in .write_iter. As Yunlei described in his patch: -f2fs_file_write_iter -blk_start_plug -__generic_file_write_iter ... -do_blockdev_direct_IO -blk_start_plug ... -blk_finish_plug ... -blk_finish_plug which may conduct performance decrease in our platform Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-31f2fs: remove unmatched zero_user_segment when convert inline dentryYunlong Song1-1/+0
Since the layout of regular dentry block is different from inline dentry block, zero_user_segment starting from MAX_INLINE_DATA(dir) is not correct for regular dentry block, besides, bitmap is already copied and used, so there is no necessary to zero page at all, so just remove the zero_user_segment is OK. Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-31f2fs: introduce private inode status mappingChao Yu5-45/+88
Previously, we use generic FS_*_FL defined by vfs to indicate inode status for each bit of i_flags, so f2fs's flag status definition is tied to vfs' one, it will be hard for f2fs to reuse bits f2fs never used to indicate new status.. In order to solve this issue, we introduce private inode status mapping, Note, for these bits have already been persisted into disk, we should never change their definition, for other ones, we can remap them for later new coming status. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-31f2fs: run fstrim asynchronously if runtime discard is onJaegeuk Kim1-2/+11
We don't need to wait for whole bunch of discard candidates in fstrim, since runtime discard will issue them in idle time. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-30f2fs: turn down IO priority of discard from backgroundChao Yu1-0/+1
In order to avoid interfering normal r/w IO, let's turn down IO priority of discard issued from background. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-30f2fs: don't split checkpoint in fstrimChao Yu4-32/+16
Now, we issue discard asynchronously in separated thread instead of in checkpoint, after that, we won't encounter long latency in checkpoint due to huge number of synchronous discard command handling, so, we don't need to split checkpoint to do trim in batch, merge it and obsolete related sysfs entry. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-30f2fs: issue discard commands proactively in high fs utilizationJaegeuk Kim2-34/+40
In the high utilization like over 80%, we don't expect huge # of large discard commands, but do many small pending discards which affects FTL GCs a lot. Let's issue them in that case. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-29f2fs: add fsync_mode=nobarrier for non-atomic filesJaegeuk Kim4-8/+15
For non-atomic files, this patch adds an option to give nobarrier which doesn't issue flush commands to the device. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-29f2fs: let fstrim issue discard commands in lower priorityJaegeuk Kim2-65/+78
The fstrim gathers huge number of large discard commands, and tries to issue without IO awareness, which results in long user-perceive IO latencies on READ, WRITE, and FLUSH in UFS. We've observed some of commands take several seconds due to long discard latency. This patch limits the maximum size to 2MB per candidate, and check IO congestion when issuing them to disk. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-04f2fs: avoid fsync() failure caused by EAGAIN in writepage()Jaegeuk Kim1-1/+7
pageout() in MM traslates EAGAIN, so calls handle_write_error() -> mapping_set_error() -> set_bit(AS_EIO, ...). file_write_and_wait_range() will see EIO error, which is critical to return value of fsync() followed by atomic_write failure to user. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03f2fs: clear PageError on writepageJaegeuk Kim5-0/+6
This patch clears PageError in some pages tagged by read path, but when we write the pages with valid contents, writepage should clear the bit likewise ext4. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03f2fs: check cap_resource only for data blocksJaegeuk Kim1-4/+4
This patch changes the rule to check cap_resource for data blocks, not inode or node blocks in order to avoid selinux denial. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03Revert "f2fs: introduce f2fs_set_page_dirty_nobuffer"Jaegeuk Kim4-35/+3
This patch reverts copied f2fs_set_page_dirty_nobuffer to use generic function for stability. This reverts commit fe76b796fc5194cc3d57265002e3a748566d073f. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03f2fs: call unlock_new_inode() before d_instantiate()Eric Biggers1-4/+4
xfstest generic/429 sometimes hangs on f2fs, caused by a thread being unable to take a directory's i_rwsem for write in vfs_rmdir(). In the test, one thread repeatedly creates and removes a directory, and other threads repeatedly look up a file in the directory. The bug is that f2fs_mkdir() calls d_instantiate() before unlock_new_inode(), resulting in the directory inode being exposed to lookups before it has been fully initialized. And with CONFIG_DEBUG_LOCK_ALLOC, unlock_new_inode() reinitializes ->i_rwsem, corrupting its state when it is already held. Fix it by calling unlock_new_inode() before d_instantiate(). This matches what other filesystems do. Fixes: 57397d86c62d ("f2fs: add inode operations for special inodes") Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03f2fs: refactor read path to allow multiple postprocessing stepsEric Biggers6-49/+147
Currently f2fs's ->readpage() and ->readpages() assume that either the data undergoes no postprocessing, or decryption only. But with fs-verity, there will be an additional authenticity verification step, and it may be needed either by itself, or combined with decryption. To support this, store a 'struct bio_post_read_ctx' in ->bi_private which contains a work struct, a bitmask of postprocessing steps that are enabled, and an indicator of the current step. The bio completion routine, if there was no I/O error, enqueues the first postprocessing step. When that completes, it continues to the next step. Pages that fail any postprocessing step have PageError set. Once all steps have completed, pages without PageError set are set Uptodate, and all pages are unlocked. Also replace f2fs_encrypted_file() with a new function f2fs_post_read_required() in places like direct I/O and garbage collection that really should be testing whether the file needs special I/O processing, not whether it is encrypted specifically. This may also be useful for other future f2fs features such as compression. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-03fscrypt: allow synchronous bio decryptionEric Biggers7-21/+45
Currently, fscrypt provides fscrypt_decrypt_bio_pages() which decrypts a bio's pages asynchronously, then unlocks them afterwards. But, this assumes that decryption is the last "postprocessing step" for the bio, so it's incompatible with additional postprocessing steps such as authenticity verification after decryption. Therefore, rename the existing fscrypt_decrypt_bio_pages() to fscrypt_enqueue_decrypt_bio(). Then, add fscrypt_decrypt_bio() which decrypts the pages in the bio synchronously without unlocking the pages, nor setting them Uptodate; and add fscrypt_enqueue_decrypt_work(), which enqueues work on the fscrypt_read_workqueue. The new functions will be used by filesystems that support both fscrypt and fs-verity. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-02Merge branch 'for-linus' of ↵Linus Torvalds2-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel Pull hexagon fixes from Richard Kuo: "Some small fixes for module compilation" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel: hexagon: export csum_partial_copy_nocheck hexagon: add memset_io() helper
2018-05-01hexagon: export csum_partial_copy_nocheckArnd Bergmann1-0/+1
This is needed to link ipv6 as a loadable module, which in turn happens in allmodconfig. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2018-05-01hexagon: add memset_io() helperArnd Bergmann1-0/+6
We already have memcpy_toio(), but not memset_io(), so let's add the obvious version to allow building an allmodconfig kernel without errors like drivers/gpu/drm/ttm/ttm_bo_util.c: In function 'ttm_bo_move_memcpy': drivers/gpu/drm/ttm/ttm_bo_util.c:390:3: error: implicit declaration of function 'memset_io' [-Werror=implicit-function-declaration] Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2018-05-01Merge tag 'xfs-4.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds4-6/+42
Pull xfs fixes from Darrick Wong: "Here are a few more bug fixes for xfs for 4.17-rc4. Most of them are fixes for bad behavior. This series has been run through a full xfstests run during LSF and through a quick xfstests run against this morning's master, with no major failures reported. Summary: - Enhance inode fork verifiers to prevent loading of corrupted metadata. - Fix a crash when we try to convert extents format inodes to btree format, we run out of space, but forget to revert the in-core state changes. - Fix file size checks when doing INSERT_RANGE that could cause files to end up negative size if there previously was an extent mapped at s_maxbytes. - Fix a bug when doing a remove-then-add ATTR_REPLACE xattr update where we forget to clear ATTR_REPLACE after the remove, which causes the attr to be lost and the fs to shut down due to (what it thinks is) inconsistent in-core state" * tag 'xfs-4.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: don't fail when converting shortform attr to long form during ATTR_REPLACE xfs: prevent creating negative-sized file via INSERT_RANGE xfs: set format back to extents if xfs_bmap_extents_to_btree xfs: enhance dinode verifier
2018-05-01Merge tag 'errseq-v4.17' of ↵Linus Torvalds1-14/+9
git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux Pull errseq infrastructure fix from Jeff Layton: "The PostgreSQL developers recently had a spirited discussion about the writeback error handling in Linux, and reached out to us about a behavoir change to the code that bit them when the errseq_t changes were merged. When we changed to using errseq_t for tracking writeback errors, we lost the ability for an application to see a writeback error that occurred before the open on which the fsync was issued. This was problematic for PostgreSQL which offloads fsync calls to a completely separate process from the DB writers. This patch restores that ability. If the errseq_t value in the inode does not have the SEEN flag set, then we just return 0 for the sample. That ensures that any recorded error is always delivered at least once. Note that we might still lose the error if the inode gets evicted from the cache before anything can reopen it, but that was the case before errseq_t was merged. At LSF/MM we had some discussion about keeping inodes with unreported writeback errors around in the cache for longer (possibly indefinitely), but that's really a separate problem" * tag 'errseq-v4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux: errseq: Always report a writeback error once
2018-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds3-3/+3
- Fixup license text for oradax driver, from Rob Gardner. - Release device object with put_device() instead of straight kfree(), from Arvind Yadav. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc: vio: use put_device() instead of kfree() sparc64: Fix mistake in oradax license text
2018-04-30sparc: vio: use put_device() instead of kfree()Arvind Yadav1-1/+1
Never directly free @dev after calling device_register(), even if it returned an error. Always use put_device() to give up the reference initialized. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30sparc64: Fix mistake in oradax license textRob Gardner2-2/+2
The license text in both oradax files mistakenly specifies "version 3" of the GNU General Public License. This is corrected to specify "version 2". Signed-off-by: Rob Gardner <rob.gardner@oracle.com> Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30Linux v4.17-rc3v4.17-rc3Linus Torvalds1-1/+1
2018-04-29Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds12-19/+93
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Thomas Gleixner: "Another set of x86 related updates: - Fix the long broken x32 version of the IPC user space headers which was noticed by Arnd Bergman in course of his ongoing y2038 work. GLIBC seems to have non broken private copies of these headers so this went unnoticed. - Two microcode fixlets which address some more fallout from the recent modifications in that area: - Unconditionally save the microcode patch, which was only saved when CPU_HOTPLUG was enabled causing failures in the late loading mechanism - Make the later loader synchronization finally work under all circumstances. It was exiting early and causing timeout failures due to a missing synchronization point. - Do not use mwait_play_dead() on AMD systems to prevent excessive power consumption as the CPU cannot go into deep power states from there. - Address an annoying sparse warning due to lost type qualifiers of the vmemmap and vmalloc base address constants. - Prevent reserving crash kernel region on Xen PV as this leads to the wrong perception that crash kernels actually work there which is not the case. Xen PV has its own crash mechanism handled by the hypervisor. - Add missing TLB cpuid values to the table to make the printout on certain machines correct. - Enumerate the new CLDEMOTE instruction - Fix an incorrect SPDX identifier - Remove stale macros" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/ipc: Fix x32 version of shmid64_ds and msqid64_ds x86/setup: Do not reserve a crash kernel region if booted on Xen PV x86/cpu/intel: Add missing TLB cpuid values x86/smpboot: Don't use mwait_play_dead() on AMD systems x86/mm: Make vmemmap and vmalloc base address constants unsigned long x86/vector: Remove the unused macro FPU_IRQ x86/vector: Remove the macro VECTOR_OFFSET_START x86/cpufeatures: Enumerate cldemote instruction x86/microcode: Do not exit early from __reload_late() x86/microcode/intel: Save microcode patch unconditionally x86/jailhouse: Fix incorrect SPDX identifier
2018-04-29Merge branch 'x86-pti-for-linus' of ↵Linus Torvalds7-34/+99
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 pti fixes from Thomas Gleixner: "A set of updates for the x86/pti related code: - Preserve r8-r11 in int $0x80. r8-r11 need to be preserved, but the int$80 entry code removed that quite some time ago. Make it correct again. - A set of fixes for the Global Bit work which went into 4.17 and caused a bunch of interesting regressions: - Triggering a BUG in the page attribute code due to a missing check for early boot stage - Warnings in the page attribute code about holes in the kernel text mapping which are caused by the freeing of the init code. Handle such holes gracefully. - Reduce the amount of kernel memory which is set global to the actual text and do not incidentally overlap with data. - Disable the global bit when RANDSTRUCT is enabled as it partially defeats the hardening. - Make the page protection setup correct for vma->page_prot population again. The adjustment of the protections fell through the crack during the Global bit rework and triggers warnings on machines which do not support certain features, e.g. NX" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry/64/compat: Preserve r8-r11 in int $0x80 x86/pti: Filter at vma->vm_page_prot population x86/pti: Disallow global kernel text with RANDSTRUCT x86/pti: Reduce amount of kernel text allowed to be Global x86/pti: Fix boot warning from Global-bit setting x86/pti: Fix boot problems from Global-bit setting
2018-04-29Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds15-109/+119
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Two fixes from the timer departement: - Fix a long standing issue in the NOHZ tick code which causes RB tree corruption, delayed timers and other malfunctions. The cause for this is code which modifies the expiry time of an enqueued hrtimer. - Revert the CLOCK_MONOTONIC/CLOCK_BOOTTIME unification due to regression reports. Seems userspace _is_ relying on the documented behaviour despite our hope that it wont" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME tick/sched: Do not mess with an enqueued hrtimer
2018-04-29Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds13-78/+129
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Thomas Gleixner: "The perf update contains the following bits: x86: - Prevent setting freeze_on_smi on PerfMon V1 CPUs to avoid #GP perf stat: - Keep the '/' event modifier separator in fallback, for example when fallbacking from 'cpu/cpu-cycles/' to user level only, where it should become 'cpu/cpu-cycles/u' and not 'cpu/cpu-cycles/:u' (Jiri Olsa) - Fix PMU events parsing rule, improving error reporting for invalid events (Jiri Olsa) - Disable write_backward and other event attributes for !group events in a group, fixing, for instance this group: '{cycles,msr/aperf/}:S' that has leader sampling (:S) and where just the 'cycles', the leader event, should have the write_backward attribute set, in this case it all fails because the PMU where 'msr/aperf/' lives doesn't accepts write_backward style sampling (Jiri Olsa) - Only fall back group read for leader (Kan Liang) - Fix core PMU alias list for x86 platform (Kan Liang) - Print out hint for mixed PMU group error (Kan Liang) - Fix duplicate PMU name for interval print (Kan Liang) Core: - Set main kernel end address properly when reading kernel and module maps (Namhyung Kim) perf mem: - Fix incorrect entries and add missing man options (Sangwon Hong) s/390: - Remove s390 specific strcmp_cpuid_cmp function (Thomas Richter) - Adapt 'perf test' case record+probe_libc_inet_pton.sh for s390 - Fix s390 undefined record__auxtrace_init() return value in 'perf record' (Thomas Richter)" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Don't enable freeze-on-smi for PerfMon V1 perf stat: Fix duplicate PMU name for interval print perf evsel: Only fall back group read for leader perf stat: Print out hint for mixed PMU group error perf pmu: Fix core PMU alias list for X86 platform perf record: Fix s390 undefined record__auxtrace_init() return value perf mem: Document incorrect and missing options perf evsel: Disable write_backward for leader sampling group events perf pmu: Fix pmu events parsing rule perf stat: Keep the / modifier separator in fallback perf test: Adapt test case record+probe_libc_inet_pton.sh for s390 perf list: Remove s390 specific strcmp_cpuid_cmp function perf machine: Set main kernel end address properly
2018-04-29Merge tag 'for_linus_stable' of ↵Linus Torvalds4-9/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix misc bugs and a regression for ext4" * tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: add MODULE_SOFTDEP to ensure crc32c is included in the initramfs ext4: fix bitmap position validation ext4: set h_journal if there is a failure starting a reserved handle ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
2018-04-29<linux/stringhash.h>: fix end_name_hash() for 64bit longAmir Goldstein1-2/+2
The comment claims that this helper will try not to loose bits, but for 64bit long it looses the high bits before hashing 64bit long into 32bit int. Use the helper hash_long() to do the right thing for 64bit long. For 32bit long, there is no change. All the callers of end_name_hash() either assign the result to qstr->hash, which is u32 or return the result as an int value (e.g. full_name_hash()). Change the helper return type to int to conform to its users. [ It took me a while to apply this, because my initial reaction to it was - incorrectly - that it could make for slower code. After having looked more at it, I take back all my complaints about the patch, Amir was right and I was mis-reading things or just being stupid. I also don't worry too much about the possible performance impact of this on 64-bit, since most architectures that actually care about performance end up not using this very much (the dcache code is the most performance-critical, but the word-at-a-time case uses its own hashing anyway). So this ends up being mostly used for filesystems that do their own degraded hashing (usually because they want a case-insensitive comparison function). A _tiny_ worry remains, in that not everybody uses DCACHE_WORD_ACCESS, and then this potentially makes things more expensive on 64-bit architectures with slow or lacking multipliers even for the normal case. That said, realistically the only such architecture I can think of is PA-RISC. Nobody really cares about performance on that, it's more of a "look ma, I've got warts^W an odd machine" platform. So the patch is fine, and all my initial worries were just misplaced from not looking at this properly. - Linus ] Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-28MAINTAINERS: add myself as maintainer of AFFSDavid Sterba1-1/+2
The AFFS filesystem is still in use by m68k community (Link #2), but as there was no code activity and no maintainer, the filesystem appeared on the list of candidates for staging/removal (Link #1). I volunteer to act as a maintainer of AFFS to collect any fixes that might show up and to guard fs/affs/ against another spring cleaning. Link: https://lkml.kernel.org/r/20180425154602.GA8546@bombadil.infradead.org Link: https://lkml.kernel.org/r/1613268.lKBQxPXt8J@merkaba CC: Martin Steigerwald <martin@lichtvoll.de> CC: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Signed-off-by: David Sterba <dsterba@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-04-28Merge branch 'i2c/for-current' of ↵Linus Torvalds4-26/+33
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - two driver fixes - better parameter check for the core - Documentation updates - part of a tree-wide HAS_DMA cleanup * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: sprd: Fix the i2c count issue i2c: sprd: Prevent i2c accesses after suspend is called i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr() Documentation/i2c: adopt kernel commenting style in examples Documentation/i2c: sync docs with current state of i2c-tools Documentation/i2c: whitespace cleanup i2c: Remove depends on HAS_DMA in case of platform dependency
2018-04-28Merge branch 'linus' of ↵Linus Torvalds2-3/+10
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: - crypto API regression that may cause sporadic alloc failures - double-free bug in drbg * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: drbg - set freed buffers to NULL crypto: api - fix finding algorithm currently being tested
2018-04-28Merge tag '4.17-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds7-54/+59
Pull cifs fixes from Steve French: "A few security related fixes for SMB3, most importantly for SMB3.11 encryption" * tag '4.17-rc2-smb3' of git://git.samba.org/sfrench/cifs-2.6: cifs: smbd: Avoid allocating iov on the stack cifs: smbd: Don't use RDMA read/write when signing is used SMB311: Fix reconnect SMB3: Fix 3.11 encryption to Windows and handle encrypted smb3 tcon CIFS: set *resp_buf_type to NO_BUFFER on error
2018-04-28Merge tag 'powerpc-4.17-4' of ↵Linus Torvalds10-65/+166
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "A bunch of fixes, mostly for existing code and going to stable. Our memory hot-unplug path wasn't flushing the cache before removing memory. That is a problem now that we are doing memory hotplug on bare metal. Three fixes for the NPU code that supports devices connected via NVLink (ie. GPUs). The main one tweaks the TLB flush algorithm to avoid soft lockups for large flushes. A fix for our memory error handling where we would loop infinitely, returning back to the bad access and hard lockup the CPU. Fixes for the OPAL RTC driver, which wasn't handling some error cases correctly. A fix for a hardlockup in the powernv cpufreq driver. And finally two fixes to our smp_send_stop(), required due to a recent change to use it on shutdown. Thanks to: Alistair Popple, Balbir Singh, Laurentiu Tudor, Mahesh Salgaonkar, Mark Hairgrove, Nicholas Piggin, Rashmica Gupta, Shilpasri G Bhat" * tag 'powerpc-4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/kvm/booke: Fix altivec related build break powerpc: Fix deadlock with multiple calls to smp_send_stop cpufreq: powernv: Fix hardlockup due to synchronous smp_call in timer interrupt powerpc: Fix smp_send_stop NMI IPI handling rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops powerpc/mce: Fix a bug where mce loops on memory UE. powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range powerpc/powernv/npu: Prevent overwriting of pnv_npu2_init_contex() callback parameters powerpc/powernv/npu: Add lock to prevent race in concurrent context init/destroy powerpc/powernv/memtrace: Let the arch hotunplug code flush cache powerpc/mm: Flush cache on memory hot(un)plug
2018-04-28rMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds17-32/+189
Pull KVM fixes from Radim Krčmář: "ARM: - PSCI selection API, a leftover from 4.16 (for stable) - Kick vcpu on active interrupt affinity change - Plug a VMID allocation race on oversubscribed systems - Silence debug messages - Update Christoffer's email address (linaro -> arm) x86: - Expose userspace-relevant bits of a newly added feature - Fix TLB flushing on VMX with VPID, but without EPT" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: x86/headers/UAPI: Move DISABLE_EXITS KVM capability bits to the UAPI kvm: apic: Flush TLB after APIC mode/address change if VPIDs are in use arm/arm64: KVM: Add PSCI version selection API KVM: arm/arm64: vgic: Kick new VCPU on interrupt migration arm64: KVM: Demote SVE and LORegion warnings to debug only MAINTAINERS: Update e-mail address for Christoffer Dall KVM: arm/arm64: Close VMID generation race
2018-04-27Merge tag 'arm64-fixes' of ↵Linus Torvalds12-21/+42
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Will Deacon: "Nothing too bad, but the spectre updates to smatch identified a few places that may need sanitising so we've got those covered. Details: - Close some potential spectre-v1 vulnerabilities found by smatch - Add missing list sentinel for CPUs that don't require KPTI - Removal of unused 'addr' parameter for I/D cache coherency - Removal of redundant set_fs(KERNEL_DS) calls in ptrace - Fix single-stepping state machine handling in response to kernel traps - Clang support for 128-bit integers - Avoid instrumenting our out-of-line atomics in preparation for enabling LSE atomics by default in 4.18" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: avoid instrumenting atomic_ll_sc.o KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_mmio_read_apr() KVM: arm/arm64: vgic: fix possible spectre-v1 in vgic_get_irq() arm64: fix possible spectre-v1 in ptrace_hbp_get_event() arm64: support __int128 with clang arm64: only advance singlestep for user instruction traps arm64/kernel: rename module_emit_adrp_veneer->module_emit_veneer_for_adrp arm64: ptrace: remove addr_limit manipulation arm64: mm: drop addr parameter from sync icache and dcache arm64: add sentinel to kpti_safe_list
2018-04-27Merge tag 'modules-for-v4.17-rc3' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull modules fix from Jessica Yu: "Fix display of module section addresses in sysfs, which were getting hashed with %pK and breaking tools like perf" * tag 'modules-for-v4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: Fix display of wrong module .text address
2018-04-27Merge tag 'ceph-for-4.17-rc3' of git://github.com/ceph/ceph-clientLinus Torvalds3-6/+43
Pull ceph fixes from Ilya Dryomov: "A CephFS quota follow-up and fixes for two older issues in the messenger layer, marked for stable" * tag 'ceph-for-4.17-rc3' of git://github.com/ceph/ceph-client: libceph: validate con->state at the top of try_write() libceph: reschedule a tick in finish_hunting() libceph: un-backoff on tick when we have a authenticated session ceph: check if mds create snaprealm when setting quota
2018-04-27Merge tag 'char-misc-4.17-rc3' of ↵Linus Torvalds11-121/+124
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char and misc driver fixes for 4.17-rc3 A variety of small things that have fallen out after 4.17-rc1 was out. Some vboxguest fixes for systems with lots of memory, amba bus fixes, some MAINTAINERS updates, uio_hv_generic driver fixes, and a few other minor things that resolve problems that people reported. The amba bus fixes took twice to get right, the first time I messed up applying the patches in the wrong order, hence the revert and later addition again with the correct fix, sorry about that. All of these have been in linux-next with no reported issues" * tag 'char-misc-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: ARM: amba: Fix race condition with driver_override ARM: amba: Make driver_override output consistent with other buses Revert "ARM: amba: Fix race condition with driver_override" ARM: amba: Don't read past the end of sysfs "driver_override" buffer ARM: amba: Fix race condition with driver_override virt: vbox: Log an error when we fail to get the host version virt: vbox: Use __get_free_pages instead of kmalloc for DMA32 memory virt: vbox: Add vbg_req_free() helper function virt: vbox: Move declarations of vboxguest private functions to private header slimbus: Fix out-of-bounds access in slim_slicesize() MAINTAINERS: add dri-devel&linaro-mm for Android ION fpga-manager: altera-ps-spi: preserve nCONFIG state MAINTAINERS: update my email address uio_hv_generic: fix subchannel ring mmap uio_hv_generic: use correct channel in isr uio_hv_generic: make ring buffer attribute for primary channel uio_hv_generic: set size of ring buffer attribute ANDROID: binder: prevent transactions into own process.
2018-04-27Merge tag 'driver-core-4.17-rc3' of ↵Linus Torvalds10-26/+30
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core fixes from Greg Kroah-Hartman: "Here are some small driver core and firmware fixes for 4.17-rc3 There's a kobject WARN() removal to make syzkaller a lot happier about some "normal" error paths that it keeps hitting, which should reduce the number of false-positives we have been getting recently. There's also some fimware test and documentation fixes, and the coredump() function signature change that needed to happen after -rc1 before drivers started to take advantage of it. All of these have been in linux-next with no reported issues" * tag 'driver-core-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: firmware: some documentation fixes selftests:firmware: fixes a call to a wrong function name kobject: don't use WARN for registration failures firmware: Fix firmware documentation for recent file renames test_firmware: fix setting old custom fw path back on exit, second try test_firmware: Install all scripts drivers: change struct device_driver::coredump() return type to void
2018-04-27Merge tag 'tty-4.17-rc3' of ↵Linus Torvalds15-40/+93
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here are some tty and serial driver fixes for reported issues for 4.17-rc3. Nothing major, but a number of small things: - device tree fixes/updates for serial ports - earlycon fixes - n_gsm fixes - tty core change reverted to help resolve syszkaller reports - other serial driver small fixes All of these have been in linux-next with no reported issues" * tag 'tty-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: Use __GFP_NOFAIL for tty_ldisc_get() tty: serial: xuartps: Setup early console when uartclk is also passed tty: Don't call panic() at tty_ldisc_init() tty: Avoid possible error pointer dereference at tty_ldisc_restore(). dt-bindings: mvebu-uart: DT fix s/interrupts-names/interrupt-names/ tty: serial: qcom_geni_serial: Use signed variable to get IRQ earlycon: Use a pointer table to fix __earlycon_table stride serial: sh-sci: Document r8a77470 bindings dt-bindings: meson-uart: DT fix s/clocks-names/clock-names/ serial: imx: fix cached UCR2 read on software reset serial: imx: warn user when using unsupported configuration serial: mvebu-uart: Fix local flags handling on termios update tty: n_gsm: Fix DLCI handling for ADM mode if debug & 2 is not set tty: n_gsm: Fix long delays with control frame timeouts in ADM mode
2018-04-27x86/headers/UAPI: Move DISABLE_EXITS KVM capability bits to the UAPIKarimAllah Ahmed2-7/+7
Move DISABLE_EXITS KVM capability bits to the UAPI just like the rest of capabilities. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: x86@kernel.org Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de> Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
2018-04-27Merge tag 'staging-4.17-rc3' of ↵Linus Torvalds7-68/+2
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging fixes from Greg KH: "Here are two staging driver fixups for 4.17-rc3. The first is the remaining stragglers of the irda code removal that you pointed out during the merge window. The second is a fix for the wilc1000 driver due to a patch that got merged in 4.17-rc1. Both of these have been in linux-next for a while with no reported issues" * tag 'staging-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: wilc1000: fix NULL pointer exception in host_int_parse_assoc_resp_info() staging: irda: remove remaining remants of irda code removal
2018-04-27Merge tag 'usb-4.17-rc3' of ↵Linus Torvalds24-61/+185
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are a number of USB driver fixes for reported problems for 4.17-rc3. The "largest" here is a number of phy core changes for reported problems with the -rc1 release. There's also the usual musb and xhci fixes, as well as new device id updates. There are also some usbip fixes for reported problems as more people start to use that code with containers. All of these have been in linux-next with no reported issues, except the last few new device ids, which are "obviously correct" :)" * tag 'usb-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits) USB: musb: dsps: drop duplicate phy initialisation USB: musb: host: prevent core phy initialisation usb: core: phy: add the SPDX-License-Identifier and include guard xhci: Fix Kernel oops in xhci dbgtty usb: select USB_COMMON for usb role switch config usb: core: phy: add missing forward declaration for "struct device" usb: core: phy: make it a no-op if CONFIG_GENERIC_PHY is disabled usb: core: use phy_exit during suspend if wake up is not supported usb: core: split usb_phy_roothub_{init,alloc} usb: core: phy: fix return value of usb_phy_roothub_exit() usb: typec: ucsi: Increase command completion timeout value Revert "xhci: plat: Register shutdown for xhci_plat" usb: core: Add quirk for HP v222w 16GB Mini Documentation: typec.rst: Use literal-block element with ascii art usb: typec: ucsi: fix tracepoint related build error usbip: usbip_event: fix to not print kernel pointer address usbip: usbip_host: fix to hold parent lock for device_attach() calls usbip: vhci_hcd: Fix usb device and sockfd leaks usbip: vhci_hcd: check rhport before using in vhci_hub_control() USB: Increment wakeup count on remote wakeup. ...
2018-04-27Merge tag 'sound-4.17-rc3' of ↵Linus Torvalds35-127/+244
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A significant amount of fixes have been piled up at this time. - Possible Spectre v1 coverage in OSS sequencer API, control API, HD-audio hwdep ioctl, ASIHPI hwdep ioctl, OPL3, and HDSPM/RME channel_info API. - A regression fix in PCM delay reporting that happened at the code refactoring for the set_fs() removal - The long-standing bug in PCM sync_ptr ioctl that missed the audio timestamp field - USB-audio regression fixes due to the recent UAC2 jack support - vm_fault_t conversions in a couple of places - ASoC topology API fixes - Assorted driver fixes: * ASoC rsnd, FSL, Intel SST, DMIC, AMD, ADAU17x1, Realtek codec * FireWire typo fix * HD-audio quirks and USB-audio Dell fixup * USB-audio UAC3 corrections" * tag 'sound-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits) ALSA: dice: fix error path to destroy initialized stream data ALSA: hda - Skip jack and others for non-existing PCM streams ALSA: hda/realtek - change the location for one of two front mics ALSA: rme9652: Hardening for potential Spectre v1 ALSA: hdspm: Hardening for potential Spectre v1 ALSA: asihpi: Hardening for potential Spectre v1 ALSA: opl3: Hardening for potential Spectre v1 ALSA: hda: Hardening for potential Spectre v1 ALSA: control: Hardening for potential Spectre v1 ALSA: seq: oss: Hardening for potential Spectre v1 ALSA: seq: oss: Fix unbalanced use lock for synth MIDI device ALSA: hda/realtek - Update ALC255 depop optimize ALSA: hda/realtek - Add some fixes for ALC233 ALSA: pcm: Change return type to vm_fault_t ALSA: usx2y: Change return type to vm_fault_t ALSA: usb-audio: ADC3: Fix channel mapping conversion for ADC3. ALSA: dice: fix OUI for TC group ALSA: usb-audio: Skip broken EU on Dell dock USB-audio ALSA: usb-audio: Fix missing endian conversion ALSA: usb-audio: Fix forgotten conversion of control query functions ...
2018-04-27Merge tag 'armsoc-fixes' of ↵Linus Torvalds25-148/+277
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "This round of fixes has two larger changes that came in last week: - a couple of patches all intended to finally turn on USB support on various Amlogic SoC based boards. The respective driver were not finalized until very late before the merge window and the DT portion is the last bit now. - a defconfig update for gemini that had repeatedly missed the cut but that is required to actually boot any real machines with the default build. The rest are the usual small changes: - a fix for a nasty build regression on the OMAP memory drivers - a fix for a boot problem on Intel/Altera SocFPGA - a MAINTAINER file update - a couple of fixes for issues found by automated testing (kernelci, coverity, sparse, ...) - a few incorrect DT entries are updated to match the hardware" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: defconfig: Update Gemini defconfig ARM: s3c24xx: jive: Fix some GPIO names HISI LPC: Add Kconfig MFD_CORE dependency ARM: dts: Fix NAS4220B pin config MAINTAINERS: Remove myself as maintainer arm64: dts: correct SATA addresses for Stingray ARM64: dts: meson-gxm-khadas-vim2: enable the USB controller ARM64: dts: meson-gxl-nexbox-a95x: enable the USB controller ARM64: dts: meson-gxl-s905x-libretech-cc: enable the USB controller ARM64: dts: meson-gx-p23x-q20x: enable the USB controller ARM64: dts: meson-gxl-s905x-p212: enable the USB controller ARM64: dts: meson-gxm: add GXM specific USB host configuration ARM64: dts: meson-gxl: add USB host support ARM: OMAP2+: Fix build when using split object directories soc: bcm2835: Make !RASPBERRYPI_FIRMWARE dummies return failure soc: bcm: raspberrypi-power: Fix use of __packed ARM: dts: Fix cm2 and prm sizes for omap4 ARM: socfpga_defconfig: Remove QSPI Sector 4K size force firmware: arm_scmi: remove redundant null check on array arm64: dts: juno: drop unnecessary address-cells and size-cells properties
2018-04-27Merge tag 'mtd/fixes-for-4.17-rc3' of git://git.infradead.org/linux-mtdLinus Torvalds7-31/+61
Pull mtd fixes from Boris Brezillon: - Fix nanddev_mtd_erase() function to match the changes done in e7bfb3fdbde3 ("mtd: Stop updating erase_info->state and calling mtd_erase_callback()") - Fix a memory leak in the Tango NAND controller driver - Fix read/write to a suspended erase block in the CFI driver - Fix the DT parsing logic in the Marvell NAND controller driver * tag 'mtd/fixes-for-4.17-rc3' of git://git.infradead.org/linux-mtd: mtd: rawnand: marvell: fix the chip-select DT parsing logic mtd: cfi: cmdset_0002: Do not allow read/write to suspend erase block. mtd: cfi: cmdset_0001: Workaround Micron Erase suspend bug. mtd: cfi: cmdset_0001: Do not allow read/write to suspend erase block. mtd: spi-nor: cadence-quadspi: Fix page fault kernel panic mtd: nand: Fix nanddev_mtd_erase() mtd: rawnand: tango: Fix struct clk memory leak