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v4.7-rc4 build: 0 failures 3 warnings (v4.7-rc4)

by Build bot for Mark Brown

Tree/Branch: v4.7-rc4 Git describe: v4.7-rc4 Commit: 33688abb28 Linux 4.7-rc4 Build Time: 155 min 33 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

9 years, 3 months

lsk 4.1-android merge conflict review on

by Alex Shi

Hi Amit, I fixed some conflicts when merge lsk 4.1 to lsk 4.1-android. Would you like to review the solutions? After merge solution I also picked your fix patch: 703920 'cgroup: refactor allow_attach handler for 4.4' for allow_attach compiler issue. Here is the merge conflicts solution: --- commit c70c579d3c4abeacd9da1383b6b8d2e0817f91e8 Merge: b92a381 7c0ca54 Author: Alex Shi <alex.shi(a)linaro.org> Date: Fri Jun 17 15:12:36 2016 +0800 Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-android Conflicts: include/linux/cgroup-defs.h kernel/sched/core.c mm/memcontrol.c in kernel/cgroup.c, rewrite to compatible with commit: d09dd4117 cgroup: Add generic cgroup subsystem permission diff --cc include/linux/cgroup-defs.h index bdb4354,f7dbca9..72e4d67 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@@ -403,21 -427,16 +427,18 @@@ struct cgroup_subsys void (*css_reset)(struct cgroup_subsys_state *css); void (*css_e_css_changed)(struct cgroup_subsys_state *css); + int (*allow_attach)(struct cgroup_subsys_state *css, + struct cgroup_taskset *tset); - int (*can_attach)(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset); - void (*cancel_attach)(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset); - void (*attach)(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset); - void (*fork)(struct task_struct *task); - void (*exit)(struct cgroup_subsys_state *css, - struct cgroup_subsys_state *old_css, - struct task_struct *task); + int (*can_attach)(struct cgroup_taskset *tset); + void (*cancel_attach)(struct cgroup_taskset *tset); + void (*attach)(struct cgroup_taskset *tset); + int (*can_fork)(struct task_struct *task, void **priv_p); + void (*cancel_fork)(struct task_struct *task, void *priv); + void (*fork)(struct task_struct *task, void *priv); + void (*exit)(struct task_struct *task); + void (*free)(struct task_struct *task); void (*bind)(struct cgroup_subsys_state *root_css); - int disabled; int early_init; /* diff --cc include/linux/cgroup.h index f5da7ba,56e7af9..c96e20e --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@@ -367,195 -469,87 +469,103 @@@ static inline struct cgroup *task_cgrou return task_css(task, subsys_id)->cgroup; } - struct cgroup_subsys_state *css_next_child(struct cgroup_subsys_state *pos, - struct cgroup_subsys_state *parent); - - struct cgroup_subsys_state *css_from_id(int id, struct cgroup_subsys *ss); + /* no synchronization, the result can only be used as a hint */ + static inline bool cgroup_is_populated(struct cgroup *cgrp) + { + return cgrp->populated_cnt; + } - /** - * css_for_each_child - iterate through children of a css - * @pos: the css * to use as the loop cursor - * @parent: css whose children to walk - * - * Walk @parent's children. Must be called under rcu_read_lock(). - * - * If a subsystem synchronizes ->css_online() and the start of iteration, a - * css which finished ->css_online() is guaranteed to be visible in the - * future iterations and will stay visible until the last reference is put. - * A css which hasn't finished ->css_online() or already finished - * ->css_offline() may show up during traversal. It's each subsystem's - * responsibility to synchronize against on/offlining. - * - * It is allowed to temporarily drop RCU read lock during iteration. The - * caller is responsible for ensuring that @pos remains accessible until - * the start of the next iteration by, for example, bumping the css refcnt. - */ - #define css_for_each_child(pos, parent) \ - for ((pos) = css_next_child(NULL, (parent)); (pos); \ - (pos) = css_next_child((pos), (parent))) + /* returns ino associated with a cgroup */ + static inline ino_t cgroup_ino(struct cgroup *cgrp) + { + return cgrp->kn->ino; + } - struct cgroup_subsys_state * - css_next_descendant_pre(struct cgroup_subsys_state *pos, - struct cgroup_subsys_state *css); + /* cft/css accessors for cftype->write() operation */ + static inline struct cftype *of_cft(struct kernfs_open_file *of) + { + return of->kn->priv; + } - struct cgroup_subsys_state * - css_rightmost_descendant(struct cgroup_subsys_state *pos); + struct cgroup_subsys_state *of_css(struct kernfs_open_file *of); - /** - * css_for_each_descendant_pre - pre-order walk of a css's descendants - * @pos: the css * to use as the loop cursor - * @root: css whose descendants to walk - * - * Walk @root's descendants. @root is included in the iteration and the - * first node to be visited. Must be called under rcu_read_lock(). - * - * If a subsystem synchronizes ->css_online() and the start of iteration, a - * css which finished ->css_online() is guaranteed to be visible in the - * future iterations and will stay visible until the last reference is put. - * A css which hasn't finished ->css_online() or already finished - * ->css_offline() may show up during traversal. It's each subsystem's - * responsibility to synchronize against on/offlining. - * - * For example, the following guarantees that a descendant can't escape - * state updates of its ancestors. - * - * my_online(@css) - * { - * Lock @css's parent and @css; - * Inherit state from the parent; - * Unlock both. - * } - * - * my_update_state(@css) - * { - * css_for_each_descendant_pre(@pos, @css) { - * Lock @pos; - * if (@pos == @css) - * Update @css's state; - * else - * Verify @pos is alive and inherit state from its parent; - * Unlock @pos; - * } - * } - * - * As long as the inheriting step, including checking the parent state, is - * enclosed inside @pos locking, double-locking the parent isn't necessary - * while inheriting. The state update to the parent is guaranteed to be - * visible by walking order and, as long as inheriting operations to the - * same @pos are atomic to each other, multiple updates racing each other - * still result in the correct state. It's guaranateed that at least one - * inheritance happens for any css after the latest update to its parent. - * - * If checking parent's state requires locking the parent, each inheriting - * iteration should lock and unlock both @pos->parent and @pos. - * - * Alternatively, a subsystem may choose to use a single global lock to - * synchronize ->css_online() and ->css_offline() against tree-walking - * operations. - * - * It is allowed to temporarily drop RCU read lock during iteration. The - * caller is responsible for ensuring that @pos remains accessible until - * the start of the next iteration by, for example, bumping the css refcnt. - */ - #define css_for_each_descendant_pre(pos, css) \ - for ((pos) = css_next_descendant_pre(NULL, (css)); (pos); \ - (pos) = css_next_descendant_pre((pos), (css))) + /* cft/css accessors for cftype->seq_*() operations */ + static inline struct cftype *seq_cft(struct seq_file *seq) + { + return of_cft(seq->private); + } - struct cgroup_subsys_state * - css_next_descendant_post(struct cgroup_subsys_state *pos, - struct cgroup_subsys_state *css); + static inline struct cgroup_subsys_state *seq_css(struct seq_file *seq) + { + return of_css(seq->private); + } - /** - * css_for_each_descendant_post - post-order walk of a css's descendants - * @pos: the css * to use as the loop cursor - * @css: css whose descendants to walk - * - * Similar to css_for_each_descendant_pre() but performs post-order - * traversal instead. @root is included in the iteration and the last - * node to be visited. - * - * If a subsystem synchronizes ->css_online() and the start of iteration, a - * css which finished ->css_online() is guaranteed to be visible in the - * future iterations and will stay visible until the last reference is put. - * A css which hasn't finished ->css_online() or already finished - * ->css_offline() may show up during traversal. It's each subsystem's - * responsibility to synchronize against on/offlining. - * - * Note that the walk visibility guarantee example described in pre-order - * walk doesn't apply the same to post-order walks. + /* + * Name / path handling functions. All are thin wrappers around the kernfs + * counterparts and can be called under any context. */ - #define css_for_each_descendant_post(pos, css) \ - for ((pos) = css_next_descendant_post(NULL, (css)); (pos); \ - (pos) = css_next_descendant_post((pos), (css))) - - bool css_has_online_children(struct cgroup_subsys_state *css); - - /* A css_task_iter should be treated as an opaque object */ - struct css_task_iter { - struct cgroup_subsys *ss; - struct list_head *cset_pos; - struct list_head *cset_head; - - struct list_head *task_pos; - struct list_head *tasks_head; - struct list_head *mg_tasks_head; - }; + static inline int cgroup_name(struct cgroup *cgrp, char *buf, size_t buflen) + { + return kernfs_name(cgrp->kn, buf, buflen); + } - void css_task_iter_start(struct cgroup_subsys_state *css, - struct css_task_iter *it); - struct task_struct *css_task_iter_next(struct css_task_iter *it); - void css_task_iter_end(struct css_task_iter *it); + static inline char * __must_check cgroup_path(struct cgroup *cgrp, char *buf, + size_t buflen) + { + return kernfs_path(cgrp->kn, buf, buflen); + } - int cgroup_attach_task_all(struct task_struct *from, struct task_struct *); - int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from); + static inline void pr_cont_cgroup_name(struct cgroup *cgrp) + { + pr_cont_kernfs_name(cgrp->kn); + } - struct cgroup_subsys_state *cgroup_get_e_css(struct cgroup *cgroup, - struct cgroup_subsys *ss); - struct cgroup_subsys_state *css_tryget_online_from_dir(struct dentry *dentry, - struct cgroup_subsys *ss); + static inline void pr_cont_cgroup_path(struct cgroup *cgrp) + { + pr_cont_kernfs_path(cgrp->kn); + } +/* + * Default Android check for whether the current process is allowed to move a + * task across cgroups, either because CAP_SYS_NICE is set or because the uid + * of the calling process is the same as the moved task or because we are + * running as root. + * Returns 0 if this is allowed, or -EACCES otherwise. + */ +int subsys_cgroup_allow_attach(struct cgroup_subsys_state *css, + struct cgroup_taskset *tset); + + #else /* !CONFIG_CGROUPS */ struct cgroup_subsys_state; - static inline int cgroup_init_early(void) { return 0; } - static inline int cgroup_init(void) { return 0; } - static inline void cgroup_fork(struct task_struct *p) {} - static inline void cgroup_post_fork(struct task_struct *p) {} - static inline void cgroup_exit(struct task_struct *p) {} - + static inline void css_put(struct cgroup_subsys_state *css) {} + static inline int cgroup_attach_task_all(struct task_struct *from, + struct task_struct *t) { return 0; } static inline int cgroupstats_build(struct cgroupstats *stats, - struct dentry *dentry) - { - return -EINVAL; - } + struct dentry *dentry) { return -EINVAL; } - static inline void css_put(struct cgroup_subsys_state *css) {} + static inline void cgroup_fork(struct task_struct *p) {} + static inline int cgroup_can_fork(struct task_struct *p, + void *ss_priv[CGROUP_CANFORK_COUNT]) + { return 0; } + static inline void cgroup_cancel_fork(struct task_struct *p, + void *ss_priv[CGROUP_CANFORK_COUNT]) {} + static inline void cgroup_post_fork(struct task_struct *p, + void *ss_priv[CGROUP_CANFORK_COUNT]) {} + static inline void cgroup_exit(struct task_struct *p) {} + static inline void cgroup_free(struct task_struct *p) {} - /* No cgroups - nothing to do */ - static inline int cgroup_attach_task_all(struct task_struct *from, - struct task_struct *t) - { - return 0; - } + static inline int cgroup_init_early(void) { return 0; } + static inline int cgroup_init(void) { return 0; } +static inline int subsys_cgroup_allow_attach(struct cgroup_subsys_state *css, + void *tset) +{ + return -EINVAL; +} #endif /* !CONFIG_CGROUPS */ #endif /* _LINUX_CGROUP_H */ diff --cc include/net/sock.h index 4e6159f,e96b2e8..1903243 --- a/include/net/sock.h +++ b/include/net/sock.h @@@ -1050,37 -1050,8 +1050,9 @@@ struct proto void (*destroy_cgroup)(struct mem_cgroup *memcg); struct cg_proto *(*proto_cgroup)(struct mem_cgroup *memcg); #endif + int (*diag_destroy)(struct sock *sk, int err); }; - /* - * Bits in struct cg_proto.flags - */ - enum cg_proto_flags { - /* Currently active and new sockets should be assigned to cgroups */ - MEMCG_SOCK_ACTIVE, - /* It was ever activated; we must disarm static keys on destruction */ - MEMCG_SOCK_ACTIVATED, - }; - - struct cg_proto { - struct page_counter memory_allocated; /* Current allocated memory. */ - struct percpu_counter sockets_allocated; /* Current number of sockets. */ - int memory_pressure; - long sysctl_mem[3]; - unsigned long flags; - /* - * memcg field is used to find which memcg we belong directly - * Each memcg struct can hold more than one cg_proto, so container_of - * won't really cut. - * - * The elegant solution would be having an inverse function to - * proto_cgroup in struct proto, but that means polluting the structure - * for everybody, instead of just for memcg users. - */ - struct mem_cgroup *memcg; - }; - int proto_register(struct proto *prot, int alloc_slab); void proto_unregister(struct proto *prot); diff --cc include/uapi/linux/magic.h index 23de409,1dd008c..4ae8ef3 --- a/include/uapi/linux/magic.h +++ b/include/uapi/linux/magic.h @@@ -52,10 -52,9 +52,11 @@@ #define REISER2FS_SUPER_MAGIC_STRING "ReIsEr2Fs" #define REISER2FS_JR_SUPER_MAGIC_STRING "ReIsEr3Fs" +#define SDCARDFS_SUPER_MAGIC 0xb550ca10 + #define SMB_SUPER_MAGIC 0x517B #define CGROUP_SUPER_MAGIC 0x27e0eb + #define CGROUP2_SUPER_MAGIC 0x63677270 #define STACK_END_MAGIC 0x57AC6E9D diff --cc kernel/cgroup.c index 0e98a35,862402d..721419e --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@@ -2375,44 -2661,47 +2661,101 @@@ static int cgroup_attach_task(struct cg return ret; } +int subsys_cgroup_allow_attach(struct cgroup_subsys_state *css, struct cgroup_taskset *tset) +{ + const struct cred *cred = current_cred(), *tcred; + struct task_struct *task; + + if (capable(CAP_SYS_NICE)) + return 0; + + cgroup_taskset_for_each(task, tset) { + tcred = __task_cred(task); + + if (current != task && !uid_eq(cred->euid, tcred->uid) && + !uid_eq(cred->euid, tcred->suid)) + return -EACCES; + } + + return 0; +} + +static int cgroup_allow_attach(struct cgroup *cgrp, struct cgroup_taskset *tset) +{ + struct cgroup_subsys_state *css; + int i; + int ret; + + for_each_css(css, i, cgrp) { + if (css->ss->allow_attach) { + ret = css->ss->allow_attach(css, tset); + if (ret) + return ret; + } else { + return -EACCES; + } + } + + return 0; +} + + static int cgroup_procs_write_permission(struct task_struct *task, + struct cgroup *dst_cgrp, + struct kernfs_open_file *of) + { + const struct cred *cred = current_cred(); + const struct cred *tcred = get_task_cred(task); + int ret = 0; + + /* + * even if we're attaching all tasks in the thread group, we only + * need to check permissions on one of them. + */ + if (!uid_eq(cred->euid, GLOBAL_ROOT_UID) && - !uid_eq(cred->euid, tcred->uid) && - !uid_eq(cred->euid, tcred->suid)) - ret = -EACCES; ++ !uid_eq(cred->euid, tcred->uid) && ++ !uid_eq(cred->euid, tcred->suid)) { ++ /* ++ * if the default permission check fails, give each ++ * cgroup a chance to extend the permission check ++ */ ++ struct cgroup_taskset tset = { ++ .src_csets = LIST_HEAD_INIT(tset.src_csets), ++ .dst_csets = LIST_HEAD_INIT(tset.dst_csets), ++ .csets = &tset.src_csets, ++ }; ++ struct css_set *cset; ++ cset = task_css_set(task); ++ list_add(&cset->mg_node, &tset.src_csets); ++ ret = cgroup_allow_attach(dst_cgrp, &tset); ++ list_del(&tset.src_csets); ++ if (ret) ++ ret = -EACCES; ++ } + + if (!ret && cgroup_on_dfl(dst_cgrp)) { + struct super_block *sb = of->file->f_path.dentry->d_sb; + struct cgroup *cgrp; + struct inode *inode; + + spin_lock_bh(&css_set_lock); + cgrp = task_cgroup_from_root(task, &cgrp_dfl_root); + spin_unlock_bh(&css_set_lock); + + while (!cgroup_is_descendant(dst_cgrp, cgrp)) + cgrp = cgroup_parent(cgrp); + + ret = -ENOMEM; + inode = kernfs_get_inode(sb, cgrp->procs_file.kn); + if (inode) { + ret = inode_permission(inode, MAY_WRITE); + iput(inode); + } + } + + put_cred(tcred); + return ret; + } + /* * Find the task_struct of the task to attach by vpid and pass it along to the * function to attach either it or all tasks in its threadgroup. Will lock diff --cc kernel/sched/core.c index cc328d3,121af05..6ac7147 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@@ -8395,8 -8368,6 +8378,7 @@@ struct cgroup_subsys cpu_cgrp_subsys = .fork = cpu_cgroup_fork, .can_attach = cpu_cgroup_can_attach, .attach = cpu_cgroup_attach, + .allow_attach = subsys_cgroup_allow_attach, - .exit = cpu_cgroup_exit, .legacy_cftypes = cpu_files, .early_init = 1, }; diff --cc mm/memcontrol.c index 02e5bab,31623c7..20a2a21 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@@ -5164,14 -4896,7 +4896,13 @@@ static int mem_cgroup_can_attach(struc return ret; } +static int mem_cgroup_allow_attach(struct cgroup_subsys_state *css, + struct cgroup_taskset *tset) +{ + return subsys_cgroup_allow_attach(css, tset); +} + - static void mem_cgroup_cancel_attach(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset) + static void mem_cgroup_cancel_attach(struct cgroup_taskset *tset) { if (mc.to) mem_cgroup_clear_mc(); @@@ -5333,17 -5057,10 +5063,15 @@@ static int mem_cgroup_can_attach(struc { return 0; } +static int mem_cgroup_allow_attach(struct cgroup_subsys_state *css, + struct cgroup_taskset *tset) +{ + return 0; +} - static void mem_cgroup_cancel_attach(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset) + static void mem_cgroup_cancel_attach(struct cgroup_taskset *tset) { } - static void mem_cgroup_move_task(struct cgroup_subsys_state *css, - struct cgroup_taskset *tset) + static void mem_cgroup_move_task(struct cgroup_taskset *tset) { } #endif

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-297-gc369533)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-297-gc369533 Commit: c3695331f3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Build Time: 79 min 36 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

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-240-gc141afd)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-240-gc141afd Commit: c141afd1a2 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm Build Time: 79 min 37 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

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-237-ge80dac1)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-237-ge80dac1 Commit: e80dac114c Merge tag 'usb-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Build Time: 79 min 44 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

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-112-gd9e6614)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-112-gd9e6614 Commit: d9e66146c1 Merge tag 'acpi-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Build Time: 79 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 close failed in file object destructor: sys.excepthook is missing lost sys.stderr

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-102-g9cbbef4)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-102-g9cbbef4 Commit: 9cbbef4efb Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Build Time: 79 min 38 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

9 years, 3 months

master build: 0 failures 3 warnings (v4.7-rc3-87-gbb96727)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.7-rc3-87-gbb96727 Commit: bb967271c0 Merge tag 'pwm/for-4.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Build Time: 80 min 7 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

9 years, 3 months

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

9 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

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