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2015-06-08ext4: return error code from ext4_mb_good_group()Lukas Czerner
Currently ext4_mb_good_group() only returns 0 or 1 depending on whether the allocation group is suitable for use or not. However we might get various errors and fail while initializing new group including -EIO which would never get propagated up the call chain. This might lead to an endless loop at writeback when we're trying to find a good group to allocate from and we fail to initialize new group (read error for example). Fix this by returning proper error code from ext4_mb_good_group() and using it in ext4_mb_regular_allocator(). In ext4_mb_regular_allocator() we will always return only the first occurred error from ext4_mb_good_group() and we only propagate it back to the caller if we do not get any other errors and we fail to allocate any blocks. Note that with other modes than errors=continue, we will fail immediately in ext4_mb_good_group() in case of error, however with errors=continue we should try to continue using the file system, that's why we're not going to fail immediately when we see an error from ext4_mb_good_group(), but rather when we fail to find a suitable block group to allocate from due to an problem in group initialization. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
2015-06-08ext4: try to initialize all groups we can in case of failure on ppc64Lukas Czerner
Currently on the machines with page size > block size when initializing block group buddy cache we initialize it for all the block group bitmaps in the page. However in the case of read error, checksum error, or if a single bitmap is in any way corrupted we would fail to initialize all of the bitmaps. This is problematic because we will not have access to the other allocation groups even though those might be perfectly fine and usable. Fix this by reading all the bitmaps instead of error out on the first problem and simply skip the bitmaps which were either not read properly, or are not valid. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-06-08ext4: verify block bitmap even after fresh initializationLukas Czerner
If we want to rely on the buffer_verified() flag of the block bitmap buffer, we have to set it consistently. However currently if we're initializing uninitialized block bitmap in ext4_read_block_bitmap_nowait() we're not going to set buffer verified at all. We can do this by simply setting the flag on the buffer, but I think it's actually better to run ext4_validate_block_bitmap() to make sure that what we did in the ext4_init_block_bitmap() is right. So run ext4_validate_block_bitmap() even after the block bitmap initialization. Also bail out early from ext4_validate_block_bitmap() if we see corrupt bitmap, since we already know it's corrupt and we do not need to verify that. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-06-08jbd2: revert must-not-fail allocation loops back to GFP_NOFAILMichal Hocko
This basically reverts 47def82672b3 (jbd2: Remove __GFP_NOFAIL from jbd2 layer). The deprecation of __GFP_NOFAIL was a bad choice because it led to open coding the endless loop around the allocator rather than removing the dependency on the non failing allocation. So the deprecation was a clear failure and the reality tells us that __GFP_NOFAIL is not even close to go away. It is still true that __GFP_NOFAIL allocations are generally discouraged and new uses should be evaluated and an alternative (pre-allocations or reservations) should be considered but it doesn't make any sense to lie the allocator about the requirements. Allocator can take steps to help making a progress if it knows the requirements. Signed-off-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Acked-by: David Rientjes <rientjes@google.com>
2015-06-03ext4 crypto: allocate bounce pages using GFP_NOWAITTheodore Ts'o
Previously we allocated bounce pages using a combination of alloc_page() and mempool_alloc() with the __GFP_WAIT bit set. Instead, use mempool_alloc() with GFP_NOWAIT. The mempool_alloc() function will try using alloc_pages() initially, and then only use the mempool reserve of pages if alloc_pages() is unable to fulfill the request. This minimizes the the impact on the mm layer when we need to do a large amount of writeback of encrypted files, as Jaeguk Kim had reported that under a heavy fio workload on a system with restricted amounts memory (which unfortunately, includes many mobile handsets), he had observed the the OOM killer getting triggered several times. Using GFP_NOWAIT If the mempool_alloc() function fails, we will retry the page writeback at a later time; the function of the mempool is to ensure that we can writeback at least 32 pages at a time, so we can more efficiently dispatch I/O under high memory pressure situations. In the future we should make this be a tunable so we can determine the best tradeoff between permanently sequestering memory and the ability to quickly launder pages so we can free up memory quickly when necessary. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: release crypto resource on module exitChao Yu
Crypto resource should be released when ext4 module exits, otherwise it will cause memory leak. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: handle unexpected lack of encryption keysTheodore Ts'o
Fix up attempts by users to try to write to a file when they don't have access to the encryption key. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: allocate the right amount of memory for the on-disk symlinkTheodore Ts'o
Previously we were taking the required padding when allocating space for the on-disk symlink. This caused a buffer overrun which could trigger a krenel crash when running fsstress. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: clean up error handling in ext4_fname_setup_filenameTheodore Ts'o
Fix a potential memory leak where fname->crypto_buf.name wouldn't get freed in some error paths, and also make the error handling easier to understand/audit. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: policies may only be set on directoriesTheodore Ts'o
Thanks to Chao Yu <chao2.yu@samsung.com> for pointing out we were missing this check. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: enforce crypto policy restrictions on cross-renamesTheodore Ts'o
Thanks to Chao Yu <chao2.yu@samsung.com> for pointing out the need for this check. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: encrypt tmpfile located in encryption protected directoryTheodore Ts'o
Factor out calls to ext4_inherit_context() and move them to __ext4_new_inode(); this fixes a problem where ext4_tmpfile() wasn't calling calling ext4_inherit_context(), so the temporary file wasn't getting protected. Since the blocks for the tmpfile could end up on disk, they really should be protected if the tmpfile is created within the context of an encrypted directory. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: make sure the encryption info is initialized on opendir(2)Theodore Ts'o
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: set up encryption info for new inodes in ext4_inherit_context()Theodore Ts'o
Set up the encryption information for newly created inodes immediately after they inherit their encryption context from their parent directories. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: fix memory leaks in ext4_encrypted_zerooutTheodore Ts'o
ext4_encrypted_zeroout() could end up leaking a bio and bounce page. Fortunately it's not used much. While we're fixing things up, refactor out common code into the static function alloc_bounce_page() and fix up error handling if mempool_alloc() fails. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: use per-inode tfm structureTheodore Ts'o
As suggested by Herbert Xu, we shouldn't allocate a new tfm each time we read or write a page. Instead we can use a single tfm hanging off the inode's crypt_info structure for all of our encryption needs for that inode, since the tfm can be used by multiple crypto requests in parallel. Also use cmpxchg() to avoid races that could result in crypt_info structure getting doubly allocated or doubly freed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: require CONFIG_CRYPTO_CTR if ext4 encryption is enabledTheodore Ts'o
On arm64 this is apparently needed for CTS mode to function correctly. Otherwise attempts to use CTS return ENOENT. Change-Id: I732ea9a5157acc76de5b89edec195d0365f4ca63 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-31ext4 crypto: shrink size of the ext4_crypto_ctx structureTheodore Ts'o
Some fields are only used when the crypto_ctx is being used on the read path, some are only used on the write path, and some are only used when the structure is on free list. Optimize memory use by using a union. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: get rid of ci_mode from struct ext4_crypt_infoTheodore Ts'o
The ci_mode field was superfluous, and getting rid of it gets rid of an unused hole in the structure. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: use slab cachesTheodore Ts'o
Use slab caches the ext4_crypto_ctx and ext4_crypt_info structures for slighly better memory efficiency and debuggability. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4: clean up superblock encryption mode fieldsTheodore Ts'o
The superblock fields s_file_encryption_mode and s_dir_encryption_mode are vestigal, so remove them as a cleanup. While we're at it, allow file systems with both encryption and inline_data enabled at the same time to work correctly. We can't have encrypted inodes with inline data, but there's no reason to prohibit unencrypted inodes from using the inline data feature. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: reorganize how we store keys in the inodeTheodore Ts'o
This is a pretty massive patch which does a number of different things: 1) The per-inode encryption information is now stored in an allocated data structure, ext4_crypt_info, instead of directly in the node. This reduces the size usage of an in-memory inode when it is not using encryption. 2) We drop the ext4_fname_crypto_ctx entirely, and use the per-inode encryption structure instead. This remove an unnecessary memory allocation and free for the fname_crypto_ctx as well as allowing us to reuse the ctfm in a directory for multiple lookups and file creations. 3) We also cache the inode's policy information in the ext4_crypt_info structure so we don't have to continually read it out of the extended attributes. 4) We now keep the keyring key in the inode's encryption structure instead of releasing it after we are done using it to derive the per-inode key. This allows us to test to see if the key has been revoked; if it has, we prevent the use of the derived key and free it. 5) When an inode is released (or when the derived key is freed), we will use memset_explicit() to zero out the derived key, so it's not left hanging around in memory. This implies that when a user logs out, it is important to first revoke the key, and then unlink it, and then finally, to use "echo 3 > /proc/sys/vm/drop_caches" to release any decrypted pages and dcache entries from the system caches. 6) All this, and we also shrink the number of lines of code by around 100. :-) Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: separate kernel and userspace structure for the keyTheodore Ts'o
Use struct ext4_encryption_key only for the master key passed via the kernel keyring. For internal kernel space users, we now use struct ext4_crypt_info. This will allow us to put information from the policy structure so we can cache it and avoid needing to constantly looking up the extended attribute. We will do this in a spearate patch. This patch is mostly mechnical to make it easier for patch review. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: don't allocate a page when encrypting/decrypting file namesTheodore Ts'o
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18ext4 crypto: optimize filename encryptionTheodore Ts'o
Encrypt the filename as soon it is passed in by the user. This avoids our needing to encrypt the filename 2 or 3 times while in the process of creating a filename. Similarly, when looking up a directory entry, encrypt the filename early, or if the encryption key is not available, base-64 decode the file syystem so that the hash value and the last 16 bytes of the encrypted filename is available in the new struct ext4_filename data structure. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-18Linux 4.1-rc4Linus Torvalds
2015-05-18watchdog: Fix merge 'conflict'Peter Zijlstra
Two watchdog changes that came through different trees had a non conflicting conflict, that is, one changed the semantics of a variable but no actual code conflict happened. So the merge appeared fine, but the resulting code did not behave as expected. Commit 195daf665a62 ("watchdog: enable the new user interface of the watchdog mechanism") changes the semantics of watchdog_user_enabled, which thereafter is only used by the functions introduced by b3738d293233 ("watchdog: Add watchdog enable/disable all functions"). There further appears to be a distinct lack of serialization between setting and using watchdog_enabled, so perhaps we should wrap the {en,dis}able_all() things in watchdog_proc_mutex. This patch fixes a s2r failure reported by Michal; which I cannot readily explain. But this does make the code internally consistent again. Reported-and-tested-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-18Merge tag 'for-linus-20150516' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD fixes from Brian Norris: "Two MTD fixes for 4.1: - readtest: the signal-handling code was clobbering the error codes we should be handling/reporting in this test, rendering it useless. Noticed by Coverity. - the common SPI NOR flash DT binding (merged for 4.1-rc1) is being revised, so let's change that before 4.1 is minted" * tag 'for-linus-20150516' of git://git.infradead.org/linux-mtd: Documentation: dt: mtd: replace "nor-jedec" binding with "jedec, spi-nor" mtd: readtest: don't clobber error reports
2015-05-17Merge tag 'usb-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB fixes from Greg KH: "Here are some USB fixes and new device ids for 4.1-rc4. All are pretty minor, and have been in linux-next successfully" * tag 'usb-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb-storage: Add NO_WP_DETECT quirk for Lacie 059f:0651 devices Added another USB product ID for ELAN touchscreen quirks. xhci: gracefully handle xhci_irq dead device xhci: Solve full event ring by increasing TRBS_PER_SEGMENT to 256 xhci: fix isoc endpoint dequeue from advancing too far on transaction error usb: chipidea: debug: avoid out of bound read USB: visor: Match I330 phone more precisely USB: pl2303: Remove support for Samsung I330 USB: cp210x: add ID for KCF Technologies PRN device usb: gadget: remove incorrect __init/__exit annotations usb: phy: isp1301: work around tps65010 dependency usb: gadget: serial: fix re-ordering of tx data usb: gadget: hid: Fix static variable usage usb: gadget: configfs: Fix interfaces array NULL-termination usb: gadget: xilinx: fix devm_ioremap_resource() check usb: dwc3: dwc3-omap: correct the register macros
2015-05-17Merge tag 'tty-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial fixes from Greg KH: "Here's some TTY and serial driver fixes for reported issues. All of these have been in linux-next successfully" * tag 'tty-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: pty: Fix input race when closing tty/n_gsm.c: fix a memory leak when gsmtty is removed Revert "serial/amba-pl011: Leave the TX IRQ alone when the UART is not open" serial: omap: Fix error handling in probe earlycon: Revert log warnings
2015-05-17Merge tag 'staging-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver fixes from Greg KH: "Here's some staging and iio driver fixes to resolve a number of reported issues. All of these have been in linux-next for a while" * tag 'staging-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (31 commits) iio: light: hid-sensor-prox: Fix memory leak in probe() iio: adc: cc10001: Add delay before setting START bit iio: adc: cc10001: Fix regulator_get_voltage() return value check iio: adc: cc10001: Fix incorrect use of power-up/power-down register staging: gdm724x: Correction of variable usage after applying ALIGN() iio: adc: cc10001: Fix the channel number mapping staging: vt6655: lock MACvWriteBSSIDAddress. staging: vt6655: CARDbUpdateTSF bss timestamp correct tsf counter value. staging: vt6655: vnt_tx_packet Correct TX order of OWNED_BY_NIC staging: vt6655: Fix 80211 control and management status reporting. staging: vt6655: implement IEEE80211_TX_STAT_NOACK_TRANSMITTED staging: vt6655: device_free_tx_buf use only ieee80211_tx_status_irqsafe staging: vt6656: use ieee80211_tx_info to select packet type. staging: rtl8712: freeing an ERR_PTR staging: sm750: remove incorrect __exit annotation iio: kfifo: Set update_needed to false only if a buffer was allocated iio: mcp320x: Fix occasional incorrect readings iio: accel: mma9553: check input value for activity period iio: accel: mma9553: add enable channel for activity iio: accel: mma9551_core: prevent buffer overrun ...
2015-05-17Merge tag 'char-misc-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc fix from Greg KH: "Here is one fix, in the extcon subsystem, that resolves a reported issue. It's been in linux-next for a number of weeks now, sorry for not getting it to you sooner" * tag 'char-misc-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: extcon: usb-gpio: register extcon device before IRQ registration
2015-05-16Merge branch 'for-linus-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml Pull UML hostfs fix from Richard Weinberger: "This contains a single fix for a regression introduced in 4.1-rc1" * 'for-linus-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: hostfs: Use correct mask for file mode
2015-05-16Merge tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifsLinus Torvalds
Pull UBI bufix from Richard Weinberger: "This contains a single bug fix for the UBI block driver" * tag 'upstream-4.1-rc4' of git://git.infradead.org/linux-ubifs: UBI: block: Add missing cache flushes
2015-05-16Merge tag 'for_linus_stable' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 Pull ext4 fixes from Ted Ts'o: "Fix a number of ext4 bugs; the most serious of which is a bug in the lazytime mount optimization code where we could end up updating the timestamps to the wrong inode" * tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: fix an ext3 collapse range regression in xfstests jbd2: fix r_count overflows leading to buffer overflow in journal recovery ext4: check for zero length extent explicitly ext4: fix NULL pointer dereference when journal restart fails ext4: remove unused function prototype from ext4.h ext4: don't save the error information if the block device is read-only ext4: fix lazytime optimization
2015-05-16Merge branch 'for-linus-4.1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "The first commit is a fix from Filipe for a very old extent buffer reuse race that triggered a BUG_ON. It hasn't come up often, I looked through old logs at FB and we hit it a handful of times over the last year. The rest are other corners he hit during testing" * 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix race when reusing stale extent buffers that leads to BUG_ON Btrfs: fix race between block group creation and their cache writeout Btrfs: fix panic when starting bg cache writeout after IO error Btrfs: fix crash after inode cache writeback failure
2015-05-16Merge branch 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "Seven small fixes. The shortlog below is a good description so no need to elaborate. It has sat in linux-next and survived the usual automated testing by Imagination's test farm" * 'master' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: tlb-r4k: Fix PG_ELPA comment MIPS: Fix up obsolete cpu_set usage MIPS: IP32: Fix build errors in reset code in DS1685 platform hook. MIPS: KVM: Fix unused variable build warning MIPS: traps: remove extra Tainted: line from __show_regs() output MIPS: Fix wrong CHECKFLAGS (sparse builds) with GCC 5.1 MIPS: Fix a preemption issue with thread's FPU defaults
2015-05-16Merge tag 'arc-4.1-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes from Vineet Gupta. * tag 'arc-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: inline cache flush toggle helpers ARC: With earlycon in use, retire EARLY_PRINTK ARC: unbork !LLSC build
2015-05-16Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "Nothing frightening this time, just smaller fixes in a number of places. The other changes contained here are: MAINTAINERS file updates: - The mach-gemini maintainer is back in action and has a new git tree - Krzysztof Kozlowski has volunteered to be a new co-maintainer for the samsung platforms - updates to the files that belong to Marvell mvebu Bug fixes: - The largest changes are on omap2, but are only to avoid some harmless warnings and to fix reset on omap4 - a small regression fix on tegra - multiple fixes for incorrect IRQ affinity on vexpress - the missing system controller on arm64 juno is added - one revert of a patch that was accidentally applied twice for mach-rockchip - two clock related DT fixes for mvebu - a workaround for suspend with old DT binaries on new exynos kernels - Another fix for suspend on exynos, needs to be backported" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits) MAINTAINERS: Add dts entries for some of the Marvell SoCs MAINTAINERS: ARM: EXYNOS: Add Krzysztof Kozlowski as co-maintainer ARM: EXYNOS: Use of_machine_is_compatible instead of soc_is_exynos4 ARM: EXYNOS: Fix failed second suspend on Exynos4 Revert "ARM: rockchip: fix undefined instruction of reset_ctrl_regs" ARM: EXYNOS: Fix dereference of ERR_PTR returned by of_genpd_get_from_provider ARM: EXYNOS: Don't try to initialize suspend on old DT ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for Peach Boards ARM: gemini: fix compiler warning due wrong data type ARM: vexpress/tc2: Add interrupt-affinity to the PMU node ARM: vexpress/ca9: Add interrupt-affinity to the PMU node ARM: vexpress/ca9: Add unified-cache property to l2 cache node ARM64: juno: add sp810 support and fix sp804 clock frequency ARM: Gemini: Maintainers update ARM: OMAP2+: Remove bogus struct clk comparison for timer clock ARM: dove: Add clock-names to CuBox Si5351 clk generator ARM: AM33xx+: hwmod: re-use omap4 implementations for reset functionality ARM: OMAP4+: PRM: add support for passing status register/bit info to reset ARM: AM43xx: hwmod: add VPFE hwmod entries ARM: mvebu: Fix the main PLL frequency on Armada 375, 38x and 39x SoCs ...
2015-05-16Merge branch 'for-rc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal fixes from Zhang Rui: "Specifics: - fix an issue in intel_powerclamp driver that idle injection target is not accurately maintained on newer Intel CPUs. Package C8 to C10 states are introduced on these CPUs but they were not included in the package c-state residency calculation. From Jacob Pan. - fix a problem that package c-state idle injection was missing on Broadwell server, by adding its id to intel_powerclamp driver. From Jacob Pan. - a couple of small fixes and cleanups from Joe Perches, Mathias Krause, Dan Carpenter and Anand Moon" * 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: tools/thermal: tmon: fixed the 'make install' command thermal: rockchip: fix an error code thermal/powerclamp: fix missing newer package c-states thermal/intel_powerclamp: add id for broadwell server thermal/intel_powerclamp: add __init / __exit annotations thermal: Use bool function return values of true/false not 1/0
2015-05-16Merge tag 'linux-kselftest-4.1-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "Urgent fix for Kselftest regression introduced in 4.1-rc1 by the new x86 test due to its hard dependency on 32-bit build environment. A set of 5 patches fix the make kselftest run and kselftest install" * tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests, x86: Rework x86 target architecture detection selftests, x86: Remove useless run_tests rule selftests/x86: install tests selftest/x86: have no dependency on all when cross building selftest/x86: build both bitnesses
2015-05-15Merge branch 'parisc-4.1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "One important patch which fixes crashes due to stack randomization on architectures where the stack grows upwards (currently parisc and metag only). This bug went unnoticed on parisc since kernel 3.14 where the flexible mmap memory layout support was added by commit 9dabf60dc4ab. The changes in fs/exec.c are inside an #ifdef CONFIG_STACK_GROWSUP section and will not affect other platforms. The other two patches rename args of the kthread_arg() function and fixes a printk output" * 'parisc-4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc,metag: Fix crashes due to stack randomization on stack-grows-upwards architectures parisc: copy_thread(): rename 'arg' argument to 'kthread_arg' parisc: %pf is only for function pointers
2015-05-15Documentation: dt: mtd: replace "nor-jedec" binding with "jedec, spi-nor"Brian Norris
In commit 8ff16cf77ce3 ("Documentation: devicetree: m25p80: add "nor-jedec" binding"), we added a generic "nor-jedec" binding to catch all mostly-compatible SPI NOR flash which can be detected via the READ ID opcode (0x9F). This was discussed and reviewed at the time, however objections have come up since then as part of this discussion: http://lkml.kernel.org/g/20150511224646.GJ32500@ld-irv-0074 It seems the parties involved agree that "jedec,spi-nor" does a better job of capturing the fact that this is SPI-specific, not just any NOR flash. This binding was only merged for v4.1-rc1, so it's still OK to change the naming. At the same time, let's move the documentation to a better name. Next up: stop referring to code (drivers/mtd/devices/m25p80.c) from the documentation. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Cc: Marek Vasut <marex@denx.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: devicetree@vger.kernel.org Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Mark Rutland <mark.rutland@arm.com>
2015-05-15MIPS: tlb-r4k: Fix PG_ELPA commentJames Hogan
The ELPA bit in PageGrain is all about large *physical* addresses, so correct the reference to "large virtual address" in the comment above where it is set for MIPS64. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: David Daney <ddaney@caviumnetworks.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10038/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-05-15MIPS: Fix up obsolete cpu_set usageEzequiel Garcia
cpu_set was removed (along with a bunch of cpumask helpers) by commit 2f0f267ea072 ("cpumask: remove deprecated functions."). Fix this by replacing cpu_set with cpumask_set_cpu. Without this fix the following error is triggered when CONFIG_MIPS_MT_FPAFF=y. arch/mips/kernel/smp-cps.c: In function 'cps_smp_setup': arch/mips/kernel/smp-cps.c:95:3: error: implicit declaration of function 'cpu_set' [-Werror=implicit-function-declaration] Fixes: 90db024f140d ("MIPS: smp-cps: cpu_set FPU mask if FPU present") Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Acked-by: Niklas Cassel <niklass@axis.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9912/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-05-15Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build fix from Ingo Molnar: "A bzImage build fix on older distros" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/vdso: Fix 'make bzImage' on older distros
2015-05-15Merge branch 'sched-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler fixes from Ingo Molnar: "Two fixes: a suspend/resume related regression fix, and an RT priority boosting fix" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/core: Fix regression in cpuset_cpu_inactive() for suspend sched: Handle priority boosted tasks proper in setscheduler()
2015-05-15Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Mostly tooling fixes, but also a lockdep annotation fix, a PMU event list fix and a new model addition" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tools/liblockdep: Fix compilation error tools/liblockdep: Fix linker error in case of cross compile perf tools: Use getconf to determine number of online CPUs tools: Fix tools/vm build perf/x86/rapl: Enable Broadwell-U RAPL support perf/x86/intel: Fix SLM cache event list perf: Annotate inherited event ctx->mutex recursion
2015-05-15Merge branch 'irq-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull irq fix from Ingo Molnar: "A tegra irqchip driver memory corruption fix" * 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip: tegra: Set the proper base address in irq chip data
2015-05-15Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Radeon: one oops fix, one bug fix, one pci id addition patch i915: one suspend/resume regression fix. All seems quiet enough." * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon: don't do mst probing if MST isn't enabled. drm/radeon: add new bonaire pci id drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling drm/i915: Avoid GPU hang when coming out of s3 or s4