linaro-kernel June 2016

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next-20160617 build: 1 failures 8 warnings (next-20160617)

by Build bot for Mark Brown

Tree/Branch: next-20160617 Git describe: next-20160617 Commit: ce24ed9ec7 Add linux-next specific files for 20160617 Build Time: 138 min 55 sec Passed: 8 / 9 ( 88.89 %) Failed: 1 / 9 ( 11.11 %) Errors: 1 Warnings: 8 Section Mismatches: 0 Failed defconfigs: arm-allmodconfig Errors: arm-allmodconfig ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 7 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm-multi_v7_defconfig 70 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 1 3 ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' Warnings Summary: 8 66 ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints 4 ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] 2 ../net/rxrpc/peer_object.c:57:15: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1 ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 7 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] ../net/rxrpc/peer_object.c:57:15: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 3 errors, 70 warnings, 0 section mismatches Errors: ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../net/rxrpc/peer_object.c:57:15: warning: 'p' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig arm64-allnoconfig arm-allnoconfig arm-multi_v5_defconfig x86_64-defconfig

8 years, 3 months

writeback Cgroup backporting review on lsk 4.1

by Alex Shi

Hi All, Thanks a lot for Zhongjiang's needed commits candidate list! The writeback-cgroup feature was backported to lsk 4.1 git://git.linaro.org/kernel/linux-linaro-stable.git v4.1/topic/writeback-cg and mainly merged into LSK ba2b0f32c on linux-linaro-lsk-v4.1 branch This feature is for cgroup2 writeback support. Following is sourcecode change for this feature. Testing/review/comments are very appreciated! Thanks Alex --- CREDITS | 5 + Documentation/{cgroups => cgroup-legacy}/00-INDEX | 0 .../blkio-controller.txt | 30 +- .../{cgroups => cgroup-legacy}/cgroups.txt | 4 + .../{cgroups => cgroup-legacy}/cpuacct.txt | 0 .../{cgroups => cgroup-legacy}/cpusets.txt | 0 .../{cgroups => cgroup-legacy}/devices.txt | 0 .../freezer-subsystem.txt | 0 .../{cgroups => cgroup-legacy}/hugetlb.txt | 0 .../{cgroups => cgroup-legacy}/memcg_test.txt | 0 .../{cgroups => cgroup-legacy}/memory.txt | 1 + .../{cgroups => cgroup-legacy}/net_cls.txt | 0 .../{cgroups => cgroup-legacy}/net_prio.txt | 0 Documentation/cgroup-legacy/pids.txt | 85 + .../unified-hierarchy.txt | 254 ++- Documentation/cgroup.txt | 1293 +++++++++++++++ Documentation/filesystems/dax.txt | 7 +- MAINTAINERS | 1 + arch/Kconfig | 6 + arch/arm/include/asm/jump_label.h | 25 +- arch/arm/kernel/jump_label.c | 2 +- arch/arm64/include/asm/jump_label.h | 18 +- arch/arm64/kernel/jump_label.c | 2 +- arch/mips/include/asm/jump_label.h | 19 +- arch/mips/kernel/jump_label.c | 2 +- arch/powerpc/include/asm/jump_label.h | 19 +- arch/powerpc/kernel/jump_label.c | 2 +- arch/s390/include/asm/jump_label.h | 19 +- arch/s390/kernel/jump_label.c | 2 +- arch/sparc/include/asm/jump_label.h | 35 +- arch/sparc/kernel/jump_label.c | 2 +- arch/x86/include/asm/jump_label.h | 21 +- arch/x86/kernel/jump_label.c | 2 +- block/bio.c | 37 +- block/blk-cgroup.c | 754 ++++++--- block/blk-core.c | 74 +- block/blk-integrity.c | 1 + block/blk-sysfs.c | 3 +- block/blk-throttle.c | 509 +++--- block/blk.h | 5 - block/bounce.c | 8 +- block/cfq-iosched.c | 734 +++++---- block/elevator.c | 4 +- block/genhd.c | 1 + drivers/block/drbd/drbd_int.h | 1 + drivers/block/drbd/drbd_main.c | 10 +- drivers/block/pktcdvd.c | 1 + drivers/char/raw.c | 1 + drivers/md/bcache/request.c | 1 + drivers/md/dm.c | 2 +- drivers/md/dm.h | 1 + drivers/md/md.h | 1 + drivers/md/raid1.c | 4 +- drivers/md/raid10.c | 2 +- drivers/mtd/devices/block2mtd.c | 1 + .../lustre/include/linux/lustre_patchless_compat.h | 4 +- fs/9p/v9fs.c | 50 +- fs/9p/vfs_super.c | 8 +- fs/block_dev.c | 32 +- fs/btrfs/disk-io.c | 11 +- fs/btrfs/extent_io.c | 2 - fs/buffer.c | 74 +- fs/dax.c | 192 ++- fs/ext2/file.c | 14 +- fs/ext2/inode.c | 1 + fs/ext2/super.c | 1 + fs/ext4/ext4.h | 2 +- fs/ext4/extents.c | 1 + fs/ext4/file.c | 27 +- fs/ext4/indirect.c | 1 + fs/ext4/inode.c | 35 +- fs/ext4/mballoc.c | 1 + fs/ext4/page-io.c | 9 +- fs/ext4/super.c | 9 +- fs/f2fs/node.c | 4 +- fs/f2fs/segment.h | 3 +- fs/fat/file.c | 1 + fs/fat/inode.c | 1 + fs/fs-writeback.c | 1177 +++++++++++--- fs/fuse/file.c | 12 +- fs/gfs2/super.c | 2 +- fs/hfs/super.c | 1 + fs/hfsplus/super.c | 1 + fs/inode.c | 15 +- fs/internal.h | 2 +- fs/kernfs/dir.c | 23 + fs/kernfs/kernfs-internal.h | 1 - fs/mpage.c | 3 + fs/nfs/filelayout/filelayout.c | 1 + fs/nfs/internal.h | 2 +- fs/nfs/write.c | 3 +- fs/nilfs2/segbuf.c | 12 - fs/ocfs2/file.c | 1 + fs/reiserfs/super.c | 1 + fs/ufs/super.c | 1 + fs/xfs/xfs_aops.c | 12 +- fs/xfs/xfs_buf.h | 1 + fs/xfs/xfs_file.c | 1 + include/linux/backing-dev-defs.h | 259 +++ include/linux/backing-dev.h | 506 ++++-- include/linux/bio.h | 3 + {block => include/linux}/blk-cgroup.h | 381 +++-- include/linux/blk_types.h | 1 - include/linux/blkdev.h | 22 +- include/linux/cgroup-defs.h | 529 ++++++ include/linux/cgroup.h | 1088 ++++--------- include/linux/cgroup_subsys.h | 30 +- include/linux/dax.h | 35 + include/linux/elevator.h | 2 + include/linux/fs.h | 41 +- include/linux/huge_mm.h | 9 + include/linux/hugetlb_cgroup.h | 4 +- include/linux/init_task.h | 8 - include/linux/jump_label.h | 202 ++- include/linux/kernfs.h | 9 + include/linux/list.h | 5 + include/linux/memcontrol.h | 431 ++++- include/linux/mm.h | 31 +- include/linux/mmzone.h | 6 +- include/linux/pagemap.h | 3 +- include/linux/sched.h | 80 +- include/linux/string.h | 1 + include/linux/swap.h | 11 +- include/linux/tracehook.h | 3 + include/linux/writeback.h | 221 ++- include/net/sock.h | 33 - include/trace/events/writeback.h | 187 ++- include/uapi/linux/magic.h | 1 + init/Kconfig | 22 + kernel/Makefile | 1 + kernel/cgroup.c | 1697 ++++++++++++-------- kernel/cgroup_freezer.c | 25 +- kernel/cgroup_pids.c | 316 ++++ kernel/cpuset.c | 103 +- kernel/events/core.c | 22 +- kernel/fork.c | 31 +- kernel/jump_label.c | 168 +- kernel/sched/core.c | 36 +- lib/string.c | 17 + mm/backing-dev.c | 682 ++++++-- mm/fadvise.c | 2 +- mm/filemap.c | 34 +- mm/huge_memory.c | 50 +- mm/madvise.c | 1 + mm/memcontrol.c | 805 ++++------ mm/memory-failure.c | 2 +- mm/memory.c | 30 +- mm/migrate.c | 12 +- mm/page-writeback.c | 1265 ++++++++++----- mm/page_alloc.c | 21 +- mm/readahead.c | 2 +- mm/rmap.c | 2 + mm/slab_common.c | 2 +- mm/truncate.c | 18 +- mm/vmscan.c | 86 +- net/core/netclassid_cgroup.c | 14 +- net/core/netprio_cgroup.c | 9 +- 157 files changed, 10767 insertions(+), 4616 deletions(-) Picked commits (bottom up sequence): --- writeback: Fix performance regression in wb_over_bg_thresh() cgroup: replace unified-hierarchy.txt with a proper cgroup v2 documentation cgroup: rename Documentation/cgroups/ to Documentation/cgroup-legacy/ cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type cfq-iosched: fix the setting of IOPS mode on SSDs block: Make CFQ default to IOPS mode on SSDs writeback: initialize inode members that track writeback history writeback: keep superblock pinned during cgroup writeback association switches memcg: fix dirty page migration block: detach bdev inode from its wb in __blkdev_put() fs/block_dev.c: Remove WARN_ON() when inode writeback fails cgroup: make sure a parent css isn't offlined before its children cgroup: make sure a parent css isn't freed before its children mm: page_alloc: generalize the dirty balance reserve block: fix module reference leak on put_disk() call for cgroups throttle memcg: fix memory.high target memcg: ratify and consolidate over-charge handling memcg: punt high overage reclaim to return-to-userland path memcg: flatten task_struct->memcg_oom mm: memcontrol: eliminate root memory.current fs/writeback, rcu: Don't use list_entry_rcu() for pointer offsetting in bdi_split_work_to_wbs() writeback: bdi_writeback iteration must not skip dying ones writeback: sync_inodes_sb() must write out I_DIRTY_TIME inodes and always call wait_sb_inodes() mm, vmscan: unlock page while waiting on writeback cgroup_pids: don't account for the root cgroup cgroup: fix handling of multi-destination migration from subtree_control enabling cgroup_freezer: simplify propagation of CGROUP_FROZEN clearing in freezer_attach() cgroup: pids: kill pids_fork(), simplify pids_can_fork() and pids_cancel_fork() cgroup: pids: fix race between cgroup_post_fork() and cgroup_migrate() cgroup: make css_set pin its css's to avoid use-afer-free cgroup: fix cftype->file_offset handling cgroup: pids: fix invalid get/put usage cgroup: fix race condition around termination check in css_task_iter_next() blkcg: don't create "io.stat" on the root cgroup cgroup: drop cgroup__DEVEL__legacy_files_on_dfl cgroup: replace error handling in cgroup_init() with WARN_ON()s cgroup: add cgroup_subsys->free() method and use it to fix pids controller cgroup: keep zombies associated with their original cgroups cgroup: make css_set_rwsem a spinlock and rename it to css_set_lock cgroup: don't hold css_set_rwsem across css task iteration cgroup: reorganize css_task_iter functions cgroup: factor out css_set_move_task() cgroup: keep css_set and task lists in chronological order cgroup: make cgroup_destroy_locked() test cgroup_is_populated() cgroup: make css_sets pin the associated cgroups cgroup: relocate cgroup_[try]get/put() cgroup: move check_for_release() invocation cgroup: replace cgroup_has_tasks() with cgroup_is_populated() cgroup: make cgroup->nr_populated count the number of populated css_sets cgroup: remove an unused parameter from cgroup_task_migrate() cgroup: implement the PIDs subsystem cgroup: fix too early usage of static_branch_disable() cgroup: make cgroup_update_dfl_csses() migrate all target processes atomically cgroup: separate out taskset operations from cgroup_migrate() cgroup: reorder cgroup_migrate()'s parameters cgroup, memcg, cpuset: implement cgroup_taskset_for_each_leader() cpuset: migrate memory only for threadgroup leaders cgroup: allow a cgroup subsystem to reject a fork memcg: generate file modified notifications on "memory.events" cgroup: generalize obtaining the handles of and notifying cgroup files cgroup: restructure file creation / removal handling cgroup: cosmetic updates to rebind_subsystems() cgroup: make cgroup_addrm_files() clean up after itself on failures cgroup: relocate cgroup_populate_dir() cgroup: replace cftype->mode with CFTYPE_WORLD_WRITABLE cgroup: replace "cgroup.populated" with "cgroup.events" cgroup: replace cgroup_on_dfl() tests in controllers with cgroup_subsys_on_dfl() cgroup: replace cgroup_subsys->disabled tests with cgroup_subsys_enabled() memcg: move memcg_proto_active from sock.h memcg, tcp_kmem: check for cg_proto in sock_update_memcg memcg: restructure mem_cgroup_can_attach() memcg: get rid of extern for functions in memcontrol.h memcg: get rid of mem_cgroup_root_css for !CONFIG_MEMCG memcg: export struct mem_cgroup memcg: convert mem_cgroup->under_oom from atomic_t to int memcg: remove unused mem_cgroup->oom_wakeups jump_label: make static_key_enabled() work on static_key_true/false types too cgroup: implement static_key based cgroup_subsys_enabled() and cgroup_subsys_on_dfl() cgroup: add delegation section to unified hierarchy documentation cgroup: require write perm on common ancestor when moving processes on the default hierarchy cgroup: separate out cgroup_procs_write_permission() from __cgroup_procs_write() MAINTAINERS: add a cgroup core co-maintainer cgroup: fix uninitialised iterator in for_each_subsys_which cgroup: replace explicit ss_mask checking with for_each_subsys_which cgroup: use bitmask to filter for_each_subsys cgroup: add seq_file forward declaration for struct cftype cgroup: simplify threadgroup locking sched, cgroup: replace signal_struct->group_rwsem with a global percpu_rwsem sched, cgroup: reorganize threadgroup locking cgroup: switch to unsigned long for bitmasks kernfs: make kernfs_get_inode() public locking/static_keys: Add selftest locking/static_keys: Add a new static_key interface locking/static_keys: Rework update logic locking/static_keys: Add static_key_{en,dis}able() helpers jump_label: Add jump_entry_key() helper jump_label, locking/static_keys: Rename JUMP_LABEL_TYPE_* and related helpers to the static_key* pattern module, jump_label: Fix module locking jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP} block: fix bounce_end_io writeback: remove broken rbtree_postorder_for_each_entry_safe() usage in cgwb_bdi_destroy() ext4: optimize ext4_writepage() for attempted 4k delalloc writes dax: don't use set_huge_zero_page() mm: add vmf_insert_pfn_pmd() mm: export various functions for the benefit of DAX dax: add huge page fault support dax: move DAX-related functions to a new header dax: expose __dax_fault for filesystems with locking constraints dax: don't abuse get_block mapping for endio callbacks writeback: memcg dirty_throttle_control should be initialized with wb->memcg_completions writeback: fix bdi_writeback iteration in wakeup_dirtytime_writeback() writeback: laptop_mode_timer_fn() needs rcu_read_lock() around bdi_writeback iteration writeback: fix incorrect calculation of available memory for memcg domains blkcg: use CGROUP_WEIGHT_* scale for io.weight on the unified hierarchy blkcg: s/CFQ_WEIGHT_*/CFQ_WEIGHT_LEGACY_*/ blkcg: implement interface for the unified hierarchy blkcg: misc preparations for unified hierarchy interface blkcg: separate out tg_conf_updated() from tg_set_conf() blkcg: move body parsing from blkg_conf_prep() to its callers blkcg: mark existing cftypes as legacy blkcg: rename subsystem name from blkio to io blkcg: refine error codes returned during blkcg configuration blkcg: remove unnecessary NULL checks from __cfqg_set_weight_device() blkcg: reduce stack usage of blkg_rwstat_recursive_sum() blkcg: remove cfqg_stats->sectors blkcg: move io_service_bytes and io_serviced stats into blkcg_gq blkcg: make blkg_[rw]stat_recursive_sum() to be able to index into blkcg_gq blkcg: make blkcg_[rw]stat per-cpu blkcg: add blkg_[rw]stat->aux_cnt and replace cfq_group->dead_stats with it blkcg: consolidate blkg creation in blkcg_bio_issue_check() blk-throttle: improve queue bypass handling blkcg: move root blkg lookup optimization from throtl_lookup_tg() to __blkg_lookup() blkcg: inline [__]blkg_lookup() blkcg: replace blkcg_policy->cpd_size with ->cpd_alloc/free_fn() methods blkcg: minor updates around blkcg_policy_data blkcg: make blkcg_policy methods take a pointer to blkcg_policy_data blk-throttle: clean up blkg_policy_data alloc/init/exit/free methods blk-throttle: remove asynchrnous percpu stats allocation mechanism blkcg: replace blkcg_policy->pd_size with ->pd_alloc/free_fn() methods blkcg: make blkcg_activate_policy() allow NULL ->pd_init_fn blkcg: restructure blkg_policy_data allocation in blkcg_activate_policy() blkcg: remove unnecessary blkcg_root handling from css_alloc/free paths blkcg: use blkg_free() in blkcg_init_queue() failure path blkcg: remove unnecessary request_list->blkg NULL test in blk_put_rl() cfq-iosched: charge async IOs to the appropriate blkcg's instead of the root cfq-iosched: fold cfq_find_alloc_queue() into cfq_get_queue() cfq-iosched: move cfq_group determination from cfq_find_alloc_queue() to cfq_get_queue() cfq-iosched: remove @gfp_mask from cfq_find_alloc_queue() blkcg, cfq-iosched: use GFP_NOWAIT instead of GFP_ATOMIC for non-critical allocations cfq-iosched: minor cleanups cfq-iosched: fix oom cfq_queue ref leak in cfq_set_request() cfq-iosched: fix async oom queue handling cfq-iosched: simplify control flow in cfq_get_queue() writeback: update writeback tracepoints to report cgroup kernfs: implement kernfs_path_len() writeback: explain why @inode is allowed to be NULL for inode_congested() writeback: remove wb_writeback_work->single_wait/done writeback: bdi_for_each_wb() iteration is memcg ID based not blkcg cgroup, writeback: don't enable cgroup writeback on traditional hierarchies fs-writeback: unplug before cond_resched in writeback_sb_inodes writeback: plug writeback in wb_writeback() and writeback_inodes_wb() block: blkg_destroy_all() should clear q->root_blkg and ->root_rl.blkg ext4: huge page fault support ext2: huge page fault support mm: add a pmd_fault handler lib/string.c: introduce strreplace() ext4: reject journal options for ext2 mounts blkcg: fix blkcg_policy_data allocation bug blkcg: implement all_blkcgs list blkcg: blkcg_css_alloc() should grab blkcg_pol_mutex while iterating blkcg_policy[] cfq-iosched: fix other locations where blkcg_to_cfqgd() can return NULL cfq-iosched: fix sysfs oops when attempting to read unconfigured weights cfq-iosched: move group scheduling functions under ifdef cfq-iosched: fix the setting of IOPS mode on SSDs block, cgroup: implement policy-specific per-blkcg data block: Make CFQ default to IOPS mode on SSDs block: add blk_set_queue_dying() to blkdev.h blkcg: allow blkcg_pol_mutex to be grabbed from cgroup [file] methods block/blk-cgroup.c: free per-blkcg data when freeing the blkcg cgroup: introduce cgroup_subsys->legacy_name cgroup: don't print subsystems for the default hierarchy inode: rename i_wb_list to i_io_list inode: add hlist_fake to avoid the inode hash lock in evict writeback: plug writeback at a high level blk-cgroup: Drop unlikely before IS_ERR(_OR_NULL) cgroup: make cftype->private a unsigned long writeback: fix initial dirty limit cgroup: export cgrp_dfl_root cgroup: define controller file conventions cgroup, block: implement task_get_css() and use it in bio_associate_current() cgroup: reorganize include/linux/cgroup.h cgroup: separate out include/linux/cgroup-defs.h Revert "cgroup, block: implement task_get_css() and use it in bio_associate_current()" cgroup: fix idr_preload usage cgroup: net_cls: fix false-positive "suspicious RCU usage" block: export bio_associate_*() and wbc_account_io() mm/page-writeback.c: initialize m_dirty to avoid compile warning v9fs: fix error handling in v9fs_session_init() Merge branch 'writeback-cg' into linux-4.1.y mm, vmscan: Do not wait for page writeback for GFP_NOFS allocations ext4: implement cgroup writeback support ext4: replace ext4_io_submit->io_op with ->io_wbc block: remove BIO_EOPNOTSUPP writeback: don't drain bdi_writeback_congested on bdi destruction writeback: don't embed root bdi_writeback_congested in bdi_writeback ext4: avoid deadlocks in the writeback path by using sb_getblk_gfp bufferhead: Add _gfp version for sb_getblk() writeback, blkio: add documentation for cgroup writeback support vfs, writeback: replace FS_CGROUP_WRITEBACK with SB_I_CGROUPWB writeback: do foreign inode detection iff cgroup writeback is enabled bdi: fix wrong error return value in cgwb_create() writeback: disassociate inodes from dying bdi_writebacks writeback: implement foreign cgroup inode bdi_writeback switching writeback: add lockdep annotation to inode_to_wb() writeback: use unlocked_inode_to_wb transaction in inode_congested() writeback: implement unlocked_inode_to_wb transaction and use it for stat updates writeback: implement [locked_]inode_to_wb_and_lock_list() writeback: implement foreign cgroup inode detection writeback: make writeback_control track the inode being written back writeback: relocate wb[_try]_get(), wb_put(), inode_{attach|detach}_wb() mm: vmscan: disable memcg direct reclaim stalling if cgroup writeback support is in use writeback: implement memcg writeback domain based throttling writeback: reset wb_domain->dirty_limit[_tstmp] when memcg domain size changes writeback: implement memcg wb_domain writeback: update wb_over_bg_thresh() to use wb_domain aware operations writeback: move over_bground_thresh() to mm/page-writeback.c writeback: separate out domain_dirty_limits() writeback: make __wb_writeout_inc() and hard_dirty_limit() take wb_domaas a parameter writeback: add dirty_throttle_control->dom writeback: add dirty_throttle_control->wb_completions writeback: add dirty_throttle_control->pos_ratio writeback: make __wb_calc_thresh() take dirty_throttle_control writeback: add dirty_throttle_control->wb_bg_thresh writeback: consolidate dirty throttle parameters into dirty_throttle_control writeback: move global_dirty_limit into wb_domain writeback: implement wb_domain writeback: reorganize [__]wb_update_bandwidth() writeback: clean up wb_dirty_limit() memcg: make mem_cgroup_read_{stat|event}() iterate possible cpus instead of online ext2: enable cgroup writeback support mpage: make __mpage_writepage() honor cgroup writeback buffer, writeback: make __block_write_full_page() honor cgroup writeback writeback: dirty inodes against their matching cgroup bdi_writeback's writeback: make writeback initiation functions handle multiple bdi_writeback's writeback: restructure try_writeback_inodes_sb[_nr]() writeback: implement wb_wait_for_single_work() writeback: implement bdi_wait_for_completion() writeback: add wb_writeback_work->auto_free writeback: make wakeup_dirtytime_writeback() handle multiple bdi_writeback's writeback: make wakeup_flusher_threads() handle multiple bdi_writeback's writeback: make bdi_start_background_writeback() take bdi_writeback instead of backing_dev_info writeback: make writeback_in_progress() take bdi_writeback instead of backing_dev_info writeback: make laptop_mode_timer_fn() handle multiple bdi_writeback's writeback: remove bdi_start_writeback() writeback: implement bdi_for_each_wb() writeback: make bdi->min/max_ratio handling cgroup writeback aware writeback: don't issue wb_writeback_work if clean writeback: make bdi_has_dirty_io() take multiple bdi_writeback's into account writeback: implement backing_dev_info->tot_write_bandwidth writeback: implement WB_has_dirty_io wb_state flag writeback: implement and use inode_congested() writeback, blkcg: propagate non-root blkcg congestion state writeback, blkcg: restructure blk_{set|clear}_queue_congested() writeback: make congestion functions per bdi_writeback writeback: let balance_dirty_pages() work on the matching cgroup bdi_writeback writeback: attribute stats to the matching per-cgroup bdi_writeback writeback, blkcg: associate each blkcg_gq with the corresponding bdi_writeback_congested writeback: make backing_dev_info host cgroup-specific bdi_writebacks writeback: add {CONFIG|BDI_CAP|FS}_CGROUP_WRITEBACK bdi: separate out congested state into a separate struct writeback: add @gfp to wb_init() bdi: make inode_to_bdi() inline writeback: separate out include/linux/backing-dev-defs.h writeback: reorganize mm/backing-dev.c writeback: move backing_dev_info->wb_lock and ->worklist into bdi_writeback writeback: s/bdi/wb/ in mm/page-writeback.c writeback: move bandwidth related fields from backing_dev_info into bdi_writeback writeback: move backing_dev_info->bdi_stat[] into bdi_writeback writeback: move backing_dev_info->state into bdi_writeback memcg: implement mem_cgroup_css_from_page() blkcg: implement bio_associate_blkcg() blkcg: implement task_get_blkcg_css() cgroup, block: implement task_get_css() and use it in bio_associate_current() blkcg: add blkcg_root_css memcg: add mem_cgroup_root_css blkcg: always create the blkcg_gq for the root blkcg update !CONFIG_BLK_CGROUP dummies in include/linux/blk-cgroup.h blkcg: move block/blk-cgroup.h to include/linux/blk-cgroup.h memcg: add per cgroup dirty page accounting page_writeback: revive cancel_dirty_page() in a restricted form

8 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-70-g41ef721)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-70-g41ef721 Commit: 41ef72181a Merge tag 'nfsd-4.7-1' of git://linux-nfs.org/~bfields/linux Build Time: 154 min 41 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 3 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 3 2 ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] 1 ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig

8 years, 3 months

[PATCH] arm64: kgdb: Match pstate size with gdbserver protocol

by Daniel Thompson

Current versions of gdb do not interoperate cleanly with kgdb on arm64 systems because gdb and kgdb do not use the same register description. This patch modifies kgdb to work with recent releases of gdb (>= 7.8.1). Compatibility with gdb (after the patch is applied) is as follows: gdb-7.6 and earlier Ok gdb-7.7 series Works if user provides custom target description gdb-7.8(.0) Works if user provides custom target description gdb-7.8.1 and later Ok When commit 44679a4f142b ("arm64: KGDB: Add step debugging support") was introduced it was paired with a gdb patch that made an incompatible change to the gdbserver protocol. This patch was eventually merged into the gdb sources: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=a4d9ba8… The change to the protocol was mostly made to simplify big-endian support inside the kernel gdb stub. Unfortunately the gdb project released gdb-7.7.x and gdb-7.8.0 before the protocol incompatibility was identified and reversed: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commit;h=bdc1441… This leaves us in a position where kgdb still uses the no-longer-used protocol; gdb-7.8.1, which restored the original behaviour,If was released on 2014-10-29. I don't believe it is possible to detect/correct the protocol incompatiblity which means the kernel must take a view about which version of the gdb remote protocol is "correct". This patch takes the view that the original/current version of the protocol is correct and that version found in gdb-7.7.x and gdb-7.8.0 is anomalous. Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- Notes: Vijaya: I really hope I have the history lesson in the commit message correct! I've done a fair bit of archeology to unpick things. arch/arm64/include/asm/kgdb.h | 13 +++++-------- arch/arm64/kernel/kgdb.c | 7 ++++++- 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/arch/arm64/include/asm/kgdb.h b/arch/arm64/include/asm/kgdb.h index f69f69c8120c..326fa8f44da5 100644 --- a/arch/arm64/include/asm/kgdb.h +++ b/arch/arm64/include/asm/kgdb.h @@ -43,20 +43,17 @@ extern int kgdb_fault_expected; * General purpose regs: * r0-r30: 64 bit * sp,pc : 64 bit - * pstate : 64 bit - * Total: 34 + * pstate : 32 bit + * Total: 33 + 1 * FPU regs: * f0-f31: 128 bit - * Total: 32 - * Extra regs * fpsr & fpcr: 32 bit - * Total: 2 - * + * Total: 32 + 2 */ -#define _GP_REGS 34 +#define _GP_REGS 33 #define _FP_REGS 32 -#define _EXTRA_REGS 2 +#define _EXTRA_REGS 3 /* * general purpose registers size in bytes. * pstate is only 4 bytes. subtract 4 bytes diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgdb.c index b67531a13136..ec62a4e3c190 100644 --- a/arch/arm64/kernel/kgdb.c +++ b/arch/arm64/kernel/kgdb.c @@ -58,7 +58,11 @@ struct dbg_reg_def_t dbg_reg_def[DBG_MAX_REG_NUM] = { { "x30", 8, offsetof(struct pt_regs, regs[30])}, { "sp", 8, offsetof(struct pt_regs, sp)}, { "pc", 8, offsetof(struct pt_regs, pc)}, - { "pstate", 8, offsetof(struct pt_regs, pstate)}, + { "pstate", 4, offsetof(struct pt_regs, pstate) +#ifdef CONFIG_CPU_BIG_ENDIAN + + 4 +#endif + }, { "v0", 16, -1 }, { "v1", 16, -1 }, { "v2", 16, -1 }, @@ -128,6 +132,7 @@ sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *task) memset((char *)gdb_regs, 0, NUMREGBYTES); thread_regs = task_pt_regs(task); memcpy((void *)gdb_regs, (void *)thread_regs->regs, GP_REG_BYTES); + dbg_get_reg(33, gdb_regs + GP_REG_BYTES, thread_regs); } void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc) -- 2.5.5

8 years, 3 months

[PATCH V2] PM / OPP: 'UNKNOWN' status of opp-table->shared

by Viresh Kumar

dev_pm_opp_get_sharing_cpus() returns 0 even in the case where the OPP core doesn't know if the table is shared or not. It is working for most of the platforms, as the OPP table was never created and we returned -ENODEV then. But in case of one of the platforms (Jetson TK1) at least, the situation is a bit different. The OPP table is created (somehow) before dev_pm_opp_get_sharing_cpus() is called and so we returned 0. The caller of this routine treated that as 'CPUs don't share OPPs' and that had bad consequences on performance. Fix this by creating a converting 'shared_opp' to an enum. dev_pm_opp_get_sharing_cpus() returns -EINVAL now in case the status in access-unknown, so that the caller can handle it accordingly (cpufreq-dt considers that as 'all CPUs share the table'). Fixes: 6f707daa3833 ("PM / OPP: Add dev_pm_opp_get_sharing_cpus()") Reported-and-tested-by: Alexandre Courbot <acourbot(a)nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- V2: - Use enum instead of macros. - 0 is used for unknown now, and so no need to initialize it. drivers/base/power/opp/cpu.c | 12 +++++++++--- drivers/base/power/opp/of.c | 10 ++++++++-- drivers/base/power/opp/opp.h | 8 +++++++- 3 files changed, 24 insertions(+), 6 deletions(-) diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c index 83d6e7ba1a34..8c3434bdb26d 100644 --- a/drivers/base/power/opp/cpu.c +++ b/drivers/base/power/opp/cpu.c @@ -211,7 +211,7 @@ int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, } /* Mark opp-table as multiple CPUs are sharing it now */ - opp_table->shared_opp = true; + opp_table->shared_opp = OPP_TABLE_ACCESS_SHARED; } unlock: mutex_unlock(&opp_table_lock); @@ -227,7 +227,8 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_set_sharing_cpus); * * This updates the @cpumask with CPUs that are sharing OPPs with @cpu_dev. * - * Returns -ENODEV if OPP table isn't already present. + * Returns -ENODEV if OPP table isn't already present and -EINVAL if the OPP + * table's status is access-unknown. * * Locking: The internal opp_table and opp structures are RCU protected. * Hence this function internally uses RCU updater strategy with mutex locks @@ -249,9 +250,14 @@ int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) goto unlock; } + if (opp_table->shared_opp == OPP_TABLE_ACCESS_UNKNOWN) { + ret = -EINVAL; + goto unlock; + } + cpumask_clear(cpumask); - if (opp_table->shared_opp) { + if (opp_table->shared_opp == OPP_TABLE_ACCESS_SHARED) { list_for_each_entry(opp_dev, &opp_table->dev_list, node) cpumask_set_cpu(opp_dev->dev->id, cpumask); } else { diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c index 94d2010558e3..1dfd3dd92624 100644 --- a/drivers/base/power/opp/of.c +++ b/drivers/base/power/opp/of.c @@ -34,7 +34,10 @@ static struct opp_table *_managed_opp(const struct device_node *np) * But the OPPs will be considered as shared only if the * OPP table contains a "opp-shared" property. */ - return opp_table->shared_opp ? opp_table : NULL; + if (opp_table->shared_opp == OPP_TABLE_ACCESS_SHARED) + return opp_table; + + return NULL; } } @@ -353,7 +356,10 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np) } opp_table->np = opp_np; - opp_table->shared_opp = of_property_read_bool(opp_np, "opp-shared"); + if (of_property_read_bool(opp_np, "opp-shared")) + opp_table->shared_opp = OPP_TABLE_ACCESS_SHARED; + else + opp_table->shared_opp = OPP_TABLE_ACCESS_EXCLUSIVE; mutex_unlock(&opp_table_lock); diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h index 20f3be22e060..fabd5ca1a083 100644 --- a/drivers/base/power/opp/opp.h +++ b/drivers/base/power/opp/opp.h @@ -119,6 +119,12 @@ struct opp_device { #endif }; +enum opp_table_access { + OPP_TABLE_ACCESS_UNKNOWN = 0, + OPP_TABLE_ACCESS_EXCLUSIVE = 1, + OPP_TABLE_ACCESS_SHARED = 2, +}; + /** * struct opp_table - Device opp structure * @node: table node - contains the devices with OPPs that @@ -166,7 +172,7 @@ struct opp_table { /* For backward compatibility with v1 bindings */ unsigned int voltage_tolerance_v1; - bool shared_opp; + enum opp_table_access shared_opp; struct dev_pm_opp *suspend_opp; unsigned int *supported_hw; -- 2.7.1.410.g6faf27b

8 years, 3 months

[PATCH] PM / OPP: 'UNKNOWN' status of opp-table->shared

by Viresh Kumar

dev_pm_opp_get_sharing_cpus() returns 0 even in the case where the OPP core doesn't know if the table is shared or not. It is working for most of the platforms, as the OPP table was never created and we returned -ENODEV then. But in case of one of the platforms (Jetson TK1) at least, the situation is a bit different. The OPP table is created (somehow) before dev_pm_opp_get_sharing_cpus() is called and so we returned 0. The caller of this routine treated that as 'CPUs don't share OPPs' and that had bad consequences on performance. Fix this by converting 'shared_opp' to an integer and have an extra value when its state in undefined. dev_pm_opp_get_sharing_cpus() returns -EINVAL now in that case, so that the caller can handle it accordingly (cpufreq-dt considers that as 'all CPUs share the table'). Fixes: 6f707daa3833 ("PM / OPP: Add dev_pm_opp_get_sharing_cpus()") Reported-by: Alexandre Courbot <acourbot(a)nvidia.com> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- Hi Alexandre, This is untested, can you please confirm if this fixes it for you? drivers/base/power/opp/core.c | 3 +++ drivers/base/power/opp/cpu.c | 12 +++++++++--- drivers/base/power/opp/of.c | 10 ++++++++-- drivers/base/power/opp/opp.h | 5 ++++- 4 files changed, 24 insertions(+), 6 deletions(-) diff --git a/drivers/base/power/opp/core.c b/drivers/base/power/opp/core.c index 7c04c87738a6..14d212885098 100644 --- a/drivers/base/power/opp/core.c +++ b/drivers/base/power/opp/core.c @@ -764,6 +764,9 @@ static struct opp_table *_add_opp_table(struct device *dev) /* Set regulator to a non-NULL error value */ opp_table->regulator = ERR_PTR(-ENXIO); + /* Set sharing information as unknown */ + opp_table->shared_opp = OPP_TABLE_SHARED_UNKNOWN; + /* Find clk for the device */ opp_table->clk = clk_get(dev, NULL); if (IS_ERR(opp_table->clk)) { diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c index 83d6e7ba1a34..4ca86df8a451 100644 --- a/drivers/base/power/opp/cpu.c +++ b/drivers/base/power/opp/cpu.c @@ -211,7 +211,7 @@ int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, } /* Mark opp-table as multiple CPUs are sharing it now */ - opp_table->shared_opp = true; + opp_table->shared_opp = OPP_TABLE_IS_SHARED; } unlock: mutex_unlock(&opp_table_lock); @@ -227,7 +227,8 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_set_sharing_cpus); * * This updates the @cpumask with CPUs that are sharing OPPs with @cpu_dev. * - * Returns -ENODEV if OPP table isn't already present. + * Returns -ENODEV if OPP table isn't already present and -EINVAL if the OPP + * table's status is shared-unknown. * * Locking: The internal opp_table and opp structures are RCU protected. * Hence this function internally uses RCU updater strategy with mutex locks @@ -249,9 +250,14 @@ int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask) goto unlock; } + if (opp_table->shared_opp == OPP_TABLE_SHARED_UNKNOWN) { + ret = -EINVAL; + goto unlock; + } + cpumask_clear(cpumask); - if (opp_table->shared_opp) { + if (opp_table->shared_opp == OPP_TABLE_IS_SHARED) { list_for_each_entry(opp_dev, &opp_table->dev_list, node) cpumask_set_cpu(opp_dev->dev->id, cpumask); } else { diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c index 94d2010558e3..83ad3a6a16f1 100644 --- a/drivers/base/power/opp/of.c +++ b/drivers/base/power/opp/of.c @@ -34,7 +34,10 @@ static struct opp_table *_managed_opp(const struct device_node *np) * But the OPPs will be considered as shared only if the * OPP table contains a "opp-shared" property. */ - return opp_table->shared_opp ? opp_table : NULL; + if (opp_table->shared_opp == OPP_TABLE_IS_SHARED) + return opp_table; + + return NULL; } } @@ -353,7 +356,10 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np) } opp_table->np = opp_np; - opp_table->shared_opp = of_property_read_bool(opp_np, "opp-shared"); + if (of_property_read_bool(opp_np, "opp-shared")) + opp_table->shared_opp = OPP_TABLE_IS_SHARED; + else + opp_table->shared_opp = OPP_TABLE_IS_NOT_SHARED; mutex_unlock(&opp_table_lock); diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h index 20f3be22e060..ffd0b54e7894 100644 --- a/drivers/base/power/opp/opp.h +++ b/drivers/base/power/opp/opp.h @@ -166,7 +166,10 @@ struct opp_table { /* For backward compatibility with v1 bindings */ unsigned int voltage_tolerance_v1; - bool shared_opp; +#define OPP_TABLE_IS_NOT_SHARED 0 +#define OPP_TABLE_IS_SHARED 1 +#define OPP_TABLE_SHARED_UNKNOWN UINT_MAX + unsigned int shared_opp; struct dev_pm_opp *suspend_opp; unsigned int *supported_hw; -- 2.7.1.410.g6faf27b

8 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-55-gd325ea8)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-55-gd325ea8 Commit: d325ea8594 Merge tag 'drm-fixes-for-v4.7-rc4' of git://people.freedesktop.org/~airlied/linux Build Time: 81 min 12 sec Passed: 9 / 9 (100.00 %) Failed: 0 / 9 ( 0.00 %) Errors: 0 Warnings: 3 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allmodconfig 1 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 3 2 ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] 1 ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: ../fs/reiserfs/ibalance.c:1156:2: warning: 'new_insert_key' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../drivers/xen/balloon.c:154:13: warning: 'release_memory_resource' declared 'static' but never defined [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v5_defconfig arm-multi_v7_defconfig x86_64-defconfig arm-allmodconfig arm-allnoconfig x86_64-allnoconfig

8 years, 3 months

next-20160616 build: 1 failures 9 warnings (next-20160616)

by Build bot for Mark Brown

Tree/Branch: next-20160616 Git describe: next-20160616 Commit: 649a37133c Add linux-next specific files for 20160616 Build Time: 166 min 21 sec Passed: 8 / 9 ( 88.89 %) Failed: 1 / 9 ( 11.11 %) Errors: 1 Warnings: 9 Section Mismatches: 0 Failed defconfigs: arm-allmodconfig Errors: arm-allmodconfig ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 7 warnings 0 mismatches : arm64-allmodconfig 2 warnings 0 mismatches : arm-multi_v7_defconfig 71 warnings 0 mismatches : arm-allmodconfig 2 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 1 3 ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' Warnings Summary: 9 66 ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints 4 ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] 3 ../drivers/net/phy/mdio-mux.c:188:3: warning: 'parent_bus_node' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] 2 ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] 1 ../include/linux/of.h:1002:20: warning: comparison of distinct pointer types lacks a cast 1 ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast 1 ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 7 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/kernel.h:743:17: warning: comparison of distinct pointer types lacks a cast ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/iio/adc/ad7606_spi.c:24:18: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/net/phy/mdio-mux.c:188:3: warning: 'parent_bus_node' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../drivers/net/phy/mdio-mux.c:188:3: warning: 'parent_bus_node' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 3 errors, 71 warnings, 0 section mismatches Errors: ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' ../include/linux/compiler-gcc.h:243:38: error: impossible constraint in 'asm' Warnings: ../include/linux/of.h:1002:20: warning: comparison of distinct pointer types lacks a cast ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../include/linux/compiler-gcc.h:243:38: warning: asm operand 0 probably doesn't match constraints ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/dynamic_debug.h:134:3: warning: 'carrier_offset' may be used uninitialized in this function [-Wmaybe-uninitialized] ../drivers/staging/ks7010/ks7010_config.c:263:8: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers] ../drivers/net/phy/mdio-mux.c:188:3: warning: 'parent_bus_node' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: ../drivers/clk/sunxi/clk-sun4i-tcon-ch1.c:82:6: warning: unused variable 'num_parents' [-Wunused-variable] ../include/linux/kfifo.h:403:39: warning: 'ge.id' may be used uninitialized in this function [-Wmaybe-uninitialized] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: x86_64-allnoconfig arm64-allnoconfig arm-allnoconfig arm-multi_v5_defconfig x86_64-defconfig close failed in file object destructor: sys.excepthook is missing lost sys.stderr

8 years, 3 months

[GIT PULL] [lsk-v3.18-android] linaro-android v3.18 topic branch updates

by Amit Pundir

Hi Alex, Mark, Please consider following linaro-android pull request for "linux-linaro-lsk-v3.18-android" LSK branch. Regards, Amit Pundir The following changes since commit a4b4755eb2cf335c47738ad98968eba6d5117381: UPSTREAM: android: binder: fix binder mmap failures (2016-05-26 14:04:58 +0530) are available in the git repository at: git://android.git.linaro.org/kernel/linaro-android.git lsk-v3.18-android for you to fetch changes up to ba0f321f1537d64f8dfaabd8a562fdc825f13436: ANDROID: dm verity fec: add missing release from fec_ktype (2016-06-16 15:11:57 +0530) ---------------------------------------------------------------- Badhri Jagan Sridharan (1): ANDROID: dm: use default verity public key Ben Hutchings (1): BACKPORT: perf tools: Document the perf sysctls Jeff Vander Stoep (2): FROMLIST: security,perf: Allow further restriction of perf_event_open ANDROID: restrict access to perf events Sami Tolvanen (2): ANDROID: dm verity fec: limit error correction recursion ANDROID: dm verity fec: add missing release from fec_ktype Documentation/sysctl/kernel.txt | 43 +++++++++++++++++++++++++++++-------------- android/configs/android-base.cfg | 1 + drivers/md/dm-android-verity.c | 67 +++++++++++++++++++++++++++++++++++++++++++++++-------------------- drivers/md/dm-android-verity.h | 16 ++++++++++++++++ drivers/md/dm-verity-fec.c | 14 ++++++++++++-- drivers/md/dm-verity-fec.h | 4 ++++ include/linux/perf_event.h | 5 +++++ kernel/events/core.c | 8 ++++++++ security/Kconfig | 9 +++++++++ tools/perf/util/evsel.c | 15 +++++++++------ 10 files changed, 140 insertions(+), 42 deletions(-)

8 years, 3 months

[GIT PULL] [lsk-v4.4-android] linaro-android v4.4 topic branch updates

by Amit Pundir

Hi Alex, Mark, Please consider following linaro-android pull request for "linux-linaro-lsk-v4.4-android" LSK branch. Regards, Amit Pundir The following changes since commit 9ad8208bd7d0a5d9e232142d95f94bddc35ffff7: Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android (2016-06-14 17:08:03 +0800) are available in the git repository at: git://android.git.linaro.org/kernel/linaro-android.git lsk-v4.4-android for you to fetch changes up to 5db5b648730e1d70d07bfa21c28854c05d8d0329: ANDROID: dm verity fec: add missing release from fec_ktype (2016-06-16 13:45:07 +0530) ---------------------------------------------------------------- Amit Pundir (2): Revert "arm: dcc_tty: fix armv6 dcc tty build failure" Revert "armv6 dcc tty driver" Ben Hutchings (1): BACKPORT: perf tools: Document the perf sysctls Dmitry Shmidt (1): ARM64: Ignore Image-dtb from git point of view Haojian Zhuang (1): arm64: add option to build Image-dtb Jeff Vander Stoep (2): FROMLIST: security,perf: Allow further restriction of perf_event_open ANDROID: restrict access to perf events Sami Tolvanen (2): ANDROID: dm verity fec: limit error correction recursion ANDROID: dm verity fec: add missing release from fec_ktype Winter Wang (1): ANDROID: usb: gadget: f_midi: set fi->f to NULL when free f_midi function Documentation/sysctl/kernel.txt | 15 ++++++ android/configs/android-base.cfg | 1 + arch/arm64/Makefile | 2 +- arch/arm64/boot/.gitignore | 1 + arch/arm64/boot/Makefile | 3 ++ drivers/char/Kconfig | 4 -- drivers/char/Makefile | 1 - drivers/char/dcc_tty.c | 326 --------------------------------------------------------------------------------------------------------------------------- drivers/md/dm-verity-fec.c | 14 +++++- drivers/md/dm-verity-fec.h | 4 ++ drivers/usb/gadget/function/f_midi.c | 1 + include/linux/perf_event.h | 5 ++ kernel/events/core.c | 8 +++ security/Kconfig | 9 ++++ tools/perf/util/evsel.c | 15 +++--- 15 files changed, 69 insertions(+), 340 deletions(-) delete mode 100644 drivers/char/dcc_tty.c

8 years, 3 months

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