Changes in sysfs-block-dm

e5451c8f8330e03ad3cfa16048b4daf961af434f - Merge remote-tracking branch 'linusw-gpio/for-next' into devm_gpiochip

Tue, 23 Feb 2016 15:07:08 +0100

Merge remote-tracking branch 'linusw-gpio/for-next' into devm_gpiochipBase for demv_gpiochip_add_data() and devm_gpiochip_remove(). List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba - Merge branch 'next' into for-linus

Thu, 03 Sep 2015 19:01:44 +0200

Merge branch 'next' into for-linusPrepare first round of input updates for 4.3 merge window. List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

c57d5621d2f2dc238f4b9c4d00b2a54187a75445 - Merge tag 'v4.2-rc3' into next

Mon, 20 Jul 2015 19:08:17 +0200

Merge tag 'v4.2-rc3' into nextSync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces. List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

ec3b34e1975670e68be3abff76f56dbb41dd417c - Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus

Mon, 22 Jun 2015 16:23:43 +0200

Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linusConflicts: drivers/hid/wacom_wac.c List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

c0b59fafe31bf91f589736be304d739b13952fdd - Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Fri, 19 Jun 2015 16:07:07 +0200

Merge branch 'mvebu/drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socMerge the mvebu/drivers branch of the arm-soc tree which containsjust a single patch bfa1ce5f38938cc9e6c7f2d1011f88eba2b9e2b2 ("bus:mvebu-mbus: add mv_mbus_dram_info_nooverlap()") that happens to bea prerequisite of the new marvell/cesa crypto driver. List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

206c59d1d7d42bcafc1d7f1e476e87e4427e2345 - Merge remote-tracking branch 'net-next/master' into mac80211-next

Wed, 10 Jun 2015 12:44:58 +0200

Merge remote-tracking branch 'net-next/master' into mac80211-nextMerge back net-next to get wireless driver changes (from Kalle)to be able to create the API change across all trees properly.Signed-off-by: Johannes Berg List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

6724af486903df57338c14424e02599e371cf563 - Merge branch 'fix/fsl-dspi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-fsl-dspi

Tue, 09 Jun 2015 19:35:46 +0200

Merge branch 'fix/fsl-dspi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-fsl-dspi List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

7ae383be81781c5e1347f71c3eb0d53ce5188200 - Merge branch 'linus' into x86/asm, before applying dependent patch

Fri, 08 May 2015 13:33:33 +0200

Merge branch 'linus' into x86/asm, before applying dependent patchSigned-off-by: Ingo Molnar List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

b3e5ced63e051e8f911b795ac5b06229a5328f7b - Merge tag 'v4.1-rc1' into patchwork

Mon, 27 Apr 2015 15:32:45 +0200

Merge tag 'v4.1-rc1' into patchworkLinux 4.1-rc1* tag 'v4.1-rc1': (11651 commits) Linux 4.1-rc1 x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue v4l: xilinx: fix for include file movement platform/chrome: chromeos_laptop - instantiate Atmel at primary address RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() Btrfs: prevent list corruption during free space cache processing toshiba_acpi: Do not register vendor backlight when acpi_video bl is available x86: fix special __probe_kernel_write() tail zeroing case crypto: img-hash - CRYPTO_DEV_IMGTEC_HASH should depend on HAS_DMA crypto: x86/sha512_ssse3 - fixup for asm function prototype change nios2: rework cache nios2: Add types.h header required for __u32 type ALSA: hda - fix headset mic detection problem for one more machine eth: bf609 eth clock: add pclk clock for stmmac driver probe blackfin: Wire up missing syscalls Btrfs: fix inode cache writeout ACPI / scan: Add a scan handler for PRP0001 ... List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

64131a87f2aae2ed9e05d8227c5b009ca6c50d98 - Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus

Tue, 21 Apr 2015 11:33:03 +0200

Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits) media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format hexdump: avoid warning in test function fs: take i_mutex during prepare_binprm for set[ug]id executables smp: Fix error case handling in smp_call_function_*() iommu-common: Fix PARISC compile-time warnings sparc: Make LDC use common iommu poll management functions sparc: Make sparc64 use scalable lib/iommu-common.c functions Break up monolithic iommu table/lock into finer graularity pools and lock sparc: Revert generic IOMMU allocator. tools/power turbostat: correct dumped pkg-cstate-limit value tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL tools/power turbostat: correct DRAM RAPL units on recent Xeon processors tools/power turbostat: Initial Skylake support tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile tools/power turbostat: modprobe msr, if needed tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2 tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names Bluetooth: hidp: Fix regression with older userspace and flags validation config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected perf/x86/intel/pt: Fix and clean up error handling in pt_event_add() ...That solves several merge conflicts: Documentation/DocBook/media/v4l/subdev-formats.xml Documentation/devicetree/bindings/vendor-prefixes.txt drivers/staging/media/mn88473/mn88473.c include/linux/kconfig.h include/uapi/linux/media-bus-format.hThe ones at subdev-formats.xml and media-bus-format.h are not trivial.That's why we opted to merge from DRM. List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

2c33ce009ca2389dbf0535d0672214d09738e35e - Merge Linus master into drm-next

Mon, 20 Apr 2015 03:32:26 +0200

Merge Linus master into drm-nextThe merge is clean, but the arm build fails afterwards,due to API changes in the regulator tree.I've included the patch into the merge to fix the build.Signed-off-by: Dave Airlie List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

afad97eee47c1f1f242202e2473929b4ef5d9f43 - Merge tag 'dm-4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Sat, 18 Apr 2015 14:14:18 +0200

Merge tag 'dm-4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dmPull device mapper updates from Mike Snitzer: - the most extensive changes this cycle are the DM core improvements to add full blk-mq support to request-based DM. - disabled by default but user can opt-in with CONFIG_DM_MQ_DEFAULT - depends on some blk-mq changes from Jens' for-4.1/core branch so that explains why this pull is built on linux-block.git - update DM to use name_to_dev_t() rather than open-coding a less capable device parser. - includes a couple small improvements to name_to_dev_t() that offer stricter constraints that DM's code provided. - improvements to the dm-cache "mq" cache replacement policy. - a DM crypt crypt_ctr() error path fix and an async crypto deadlock fix - a small efficiency improvement for DM crypt decryption by leveraging immutable biovecs - add error handling modes for corrupted blocks to DM verity - a new "log-writes" DM target from Josef Bacik that is meant for file system developers to test file system integrity at particular points in the life of a file system - a few DM log userspace cleanups and fixes - a few Documentation fixes (for thin, cache, crypt and switch)* tag 'dm-4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (34 commits) dm crypt: fix missing error code return from crypt_ctr error path dm crypt: fix deadlock when async crypto algorithm returns -EBUSY dm crypt: leverage immutable biovecs when decrypting on read dm crypt: update URLs to new cryptsetup project page dm: add log writes target dm table: use bool function return values of true/false not 1/0 dm verity: add error handling modes for corrupted blocks dm thin: remove stale 'trim' message documentation dm delay: use msecs_to_jiffies for time conversion dm log userspace base: fix compile warning dm log userspace transfer: match wait_for_completion_timeout return type dm table: fall back to getting device using name_to_dev_t() init: stricter checking of major:minor root= values init: export name_to_dev_t and mark name argument as const dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr dm: optimize dm_mq_queue_rq to _not_ use kthread if using pure blk-mq dm: add full blk-mq support to request-based DM dm: impose configurable deadline for dm_request_fn's merge heuristic dm sysfs: introduce ability to add writable attributes dm: don't start current request if it would've merged with the previous ... List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

17e149b8f73ba116e71e25930dd6f2eb3828792d - dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr

Wed, 11 Mar 2015 20:01:09 +0100

dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attrRequest-based DM's blk-mq support defaults to off; but a user can easilychange the default using the dm_mod.use_blk_mq module/boot option.Also, you can check what mode a given request-based DM device is usingwith: cat /sys/block/dm-X/dm/use_blk_mqThis change enabled further cleanup and reduced work (e.g. themd->io_pool and md->rq_pool isn't created if using blk-mq).Signed-off-by: Mike Snitzer List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

0ce65797a77ee780f62909d3128bf08b9735718b - dm: impose configurable deadline for dm_request_fn's merge heuristic

Thu, 26 Feb 2015 06:50:28 +0100

dm: impose configurable deadline for dm_request_fn's merge heuristicOtherwise, for sequential workloads, the dm_request_fn can allowexcessive request merging at the expense of increased service time.Add a per-device sysfs attribute to allow the user to control how long arequest, that is a reasonable merge candidate, can be queued on therequest queue. The resolution of this request dispatch deadline is inmicroseconds (ranging from 1 to 100000 usecs), to set a 20us deadline: echo 20 > /sys/block/dm-7/dm/rq_based_seq_io_merge_deadlineThe dm_request_fn's merge heuristic and associated extra accounting isdisabled by default (rq_based_seq_io_merge_deadline is 0).This sysfs attribute is not applicable to bio-based DM devices so itwill only ever report 0 for them.By allowing a request to remain on the queue it will block othersrequests on the queue. But introducing a short dequeue delay has provenvery effective at enabling certain sequential IO workloads on reallyfast, yet IOPS constrained, devices to build up slightly larger IOs --yielding 90+% throughput improvements. Having precise control over thetime taken to wait for larger requests to build affords control beyondthat of waiting for certain IO sizes to accumulate (which would requirea deadline anyway). This knob will only ever make sense with sequentialIO workloads and the particular value used is storage configurationspecific.Given the expected niche use-case for when this knob is useful it hasbeen deemed acceptable to expose this relatively crude method forcrafting optimal IO on specific storage -- especially given the solutionis simple yet effective. In the context of DM multipath, it isadvisable to tune this sysfs attribute to a value that offers the bestperformance for the common case (e.g. if 4 paths are expected active,tune for that; if paths fail then performance may be slightly reduced).Alternatives were explored to have request-based DM autotune this value(e.g. if/when paths fail) but they were quickly deemed too fragile andcomplex to warrant further design and development time. If this problemproves more common as faster storage emerges we'll have to look atelevating a generic solution into the block core.Tested-by: Shiva Krishna Merla Signed-off-by: Mike Snitzer List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

9a64e8e0ace51b309fdcff4b4754b3649250382a - Merge tag 'v3.5-rc1'

Fri, 15 Jun 2012 21:32:04 +0200

Merge tag 'v3.5-rc1'Linux 3.5-rc1Conflicts: net/ceph/messenger.c List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

d987dd137bac8dca9b0015763d3106f48bb8a596 - Merge remote branch 'wireless-next/master' into ath6kl-next

Thu, 14 Jun 2012 13:20:18 +0200

Merge remote branch 'wireless-next/master' into ath6kl-nextConflicts: drivers/net/wireless/ath/ath6kl/cfg80211.c List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

e644dae645e167d154c0526358940986682a72b0 - Merge branch 'next' into for-linus

Thu, 24 May 2012 10:13:01 +0200

Merge branch 'next' into for-linus List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

57b8628bb0ac4e47c806e45c5bbd89282e93869b - Merge commit 'v3.4-rc4' into next

Sun, 22 Apr 2012 08:28:35 +0200

Merge commit 'v3.4-rc4' into next List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

d5aeee8cb28317ef608ecac421abc4d986d585d2 - Merge tag 'v3.4-rc3' into staging/for_v3.5

Thu, 19 Apr 2012 14:23:28 +0200

Merge tag 'v3.4-rc3' into staging/for_v3.5* tag 'v3.4-rc3': (3755 commits) Linux 3.4-rc3 x86-32: fix up strncpy_from_user() sign error ARM: 7386/1: jump_label: fixup for rename to static_key ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus PCI: Fix regression in pci_restore_state(), v3 SCSI: Fix error handling when no ULD is attached ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors ARM: dts: remove blank interrupt-parent properties ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files do not export kernel's NULL #define to userspace ARM: EXYNOS: Remove broken config values for touchscren for NURI board ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards ARM: EXYNOS: fix regulator name for NURI board ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS sparc64: Eliminate obsolete __handle_softirq() function sparc64: Fix bootup crash on sun4v. ARM: msm: Fix section mismatches in proc_comm.c ... List of files: /linux/Documentation/ABI/testing/sysfs-block-dm

681e4a5e13c1c8315694eb4f44e0cdd84c9082d2 - Merge commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81' into stable/for-linus-3.4

Wed, 18 Apr 2012 21:52:50 +0200

Merge commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81' into stable/for-linus-3.4* commit 'c104f1fa1ecf4ee0fc06e31b1f77630b2551be81': (14566 commits) cpufreq: OMAP: fix build errors: depends on ARCH_OMAP2PLUS sparc64: Eliminate obsolete __handle_softirq() function sparc64: Fix bootup crash on sun4v. kconfig: delete last traces of __enabled_ from autoconf.h Revert "kconfig: fix __enabled_ macros definition for invisible and un-selected symbols" kconfig: fix IS_ENABLED to not require all options to be defined irq_domain: fix type mismatch in debugfs output format staging: android: fix mem leaks in __persistent_ram_init() staging: vt6656: Don't leak memory in drivers/staging/vt6656/ioctl.c::private_ioctl() staging: iio: hmc5843: Fix crash in probe function. panic: fix stack dump print on direct call to panic() drivers/rtc/rtc-pl031.c: enable clock on all ST variants Revert "mm: vmscan: fix misused nr_reclaimed in shrink_mem_cgroup_zone()" hugetlb: fix race condition in hugetlb_fault() drivers/rtc/rtc-twl.c: use static register while reading time drivers/rtc/rtc-s3c.c: add placeholder for driver private data drivers/rtc/rtc-s3c.c: fix compilation error MAINTAINERS: add PCDP console maintainer memcg: do not open code accesses to res_counter members drivers/rtc/rtc-efi.c: fix section mismatch warning ... List of files: /linux/Documentation/ABI/testing/sysfs-block-dm