diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cgroup.c | 494 |
1 files changed, 247 insertions, 247 deletions
diff --git a/kernel/cgroup.c b/kernel/cgroup.c index c2f12a49dff2..5987dccdb2a0 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -124,18 +124,18 @@ static int need_forkexit_callback; /* bits in struct cgroup flags field */ enum { /* Control Group is dead */ - CONT_REMOVED, + CGRP_REMOVED, /* Control Group has previously had a child cgroup or a task, - * but no longer (only if CONT_NOTIFY_ON_RELEASE is set) */ - CONT_RELEASABLE, + * but no longer (only if CGRP_NOTIFY_ON_RELEASE is set) */ + CGRP_RELEASABLE, /* Control Group requires release notifications to userspace */ - CONT_NOTIFY_ON_RELEASE, + CGRP_NOTIFY_ON_RELEASE, }; /* convenient tests for these bits */ -inline int cgroup_is_removed(const struct cgroup *cont) +inline int cgroup_is_removed(const struct cgroup *cgrp) { - return test_bit(CONT_REMOVED, &cont->flags); + return test_bit(CGRP_REMOVED, &cgrp->flags); } /* bits in struct cgroupfs_root flags field */ @@ -143,17 +143,17 @@ enum { ROOT_NOPREFIX, /* mounted subsystems have no named prefix */ }; -inline int cgroup_is_releasable(const struct cgroup *cont) +inline int cgroup_is_releasable(const struct cgroup *cgrp) { const int bits = - (1 << CONT_RELEASABLE) | - (1 << CONT_NOTIFY_ON_RELEASE); - return (cont->flags & bits) == bits; + (1 << CGRP_RELEASABLE) | + (1 << CGRP_NOTIFY_ON_RELEASE); + return (cgrp->flags & bits) == bits; } -inline int notify_on_release(const struct cgroup *cont) +inline int notify_on_release(const struct cgroup *cgrp) { - return test_bit(CONT_NOTIFY_ON_RELEASE, &cont->flags); + return test_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags); } /* @@ -173,7 +173,7 @@ static LIST_HEAD(release_list); static DEFINE_SPINLOCK(release_list_lock); static void cgroup_release_agent(struct work_struct *work); static DECLARE_WORK(release_agent_work, cgroup_release_agent); -static void check_for_release(struct cgroup *cont); +static void check_for_release(struct cgroup *cgrp); /* Link structure for associating css_set objects with cgroups */ struct cg_cgroup_link { @@ -181,7 +181,7 @@ struct cg_cgroup_link { * List running through cg_cgroup_links associated with a * cgroup, anchored on cgroup->css_sets */ - struct list_head cont_link_list; + struct list_head cgrp_link_list; /* * List running through cg_cgroup_links pointing at a * single css_set object, anchored on css_set->cg_links @@ -239,7 +239,7 @@ static void unlink_css_set(struct css_set *cg) link = list_entry(cg->cg_links.next, struct cg_cgroup_link, cg_link_list); list_del(&link->cg_link_list); - list_del(&link->cont_link_list); + list_del(&link->cgrp_link_list); kfree(link); } write_unlock(&css_set_lock); @@ -254,12 +254,12 @@ static void __release_css_set(struct kref *k, int taskexit) rcu_read_lock(); for (i = 0; i < CGROUP_SUBSYS_COUNT; i++) { - struct cgroup *cont = cg->subsys[i]->cgroup; - if (atomic_dec_and_test(&cont->count) && - notify_on_release(cont)) { + struct cgroup *cgrp = cg->subsys[i]->cgroup; + if (atomic_dec_and_test(&cgrp->count) && + notify_on_release(cgrp)) { if (taskexit) - set_bit(CONT_RELEASABLE, &cont->flags); - check_for_release(cont); + set_bit(CGRP_RELEASABLE, &cgrp->flags); + check_for_release(cgrp); } } rcu_read_unlock(); @@ -304,7 +304,7 @@ static inline void put_css_set_taskexit(struct css_set *cg) * oldcg: the cgroup group that we're using before the cgroup * transition * - * cont: the cgroup that we're moving into + * cgrp: the cgroup that we're moving into * * template: location in which to build the desired set of subsystem * state objects for the new cgroup group @@ -312,11 +312,11 @@ static inline void put_css_set_taskexit(struct css_set *cg) static struct css_set *find_existing_css_set( struct css_set *oldcg, - struct cgroup *cont, + struct cgroup *cgrp, struct cgroup_subsys_state *template[]) { int i; - struct cgroupfs_root *root = cont->root; + struct cgroupfs_root *root = cgrp->root; struct list_head *l = &init_css_set.list; /* Built the set of subsystem state objects that we want to @@ -326,7 +326,7 @@ static struct css_set *find_existing_css_set( /* Subsystem is in this hierarchy. So we want * the subsystem state from the new * cgroup */ - template[i] = cont->subsys[i]; + template[i] = cgrp->subsys[i]; } else { /* Subsystem is not in this hierarchy, so we * don't want to change the subsystem state */ @@ -353,7 +353,7 @@ static struct css_set *find_existing_css_set( /* * allocate_cg_links() allocates "count" cg_cgroup_link structures - * and chains them on tmp through their cont_link_list fields. Returns 0 on + * and chains them on tmp through their cgrp_link_list fields. Returns 0 on * success or a negative error */ @@ -368,13 +368,13 @@ static int allocate_cg_links(int count, struct list_head *tmp) while (!list_empty(tmp)) { link = list_entry(tmp->next, struct cg_cgroup_link, - cont_link_list); - list_del(&link->cont_link_list); + cgrp_link_list); + list_del(&link->cgrp_link_list); kfree(link); } return -ENOMEM; } - list_add(&link->cont_link_list, tmp); + list_add(&link->cgrp_link_list, tmp); } return 0; } @@ -385,8 +385,8 @@ static void free_cg_links(struct list_head *tmp) struct cg_cgroup_link *link; link = list_entry(tmp->next, struct cg_cgroup_link, - cont_link_list); - list_del(&link->cont_link_list); + cgrp_link_list); + list_del(&link->cgrp_link_list); kfree(link); } } @@ -400,7 +400,7 @@ static void free_cg_links(struct list_head *tmp) */ static struct css_set *find_css_set( - struct css_set *oldcg, struct cgroup *cont) + struct css_set *oldcg, struct cgroup *cgrp) { struct css_set *res; struct cgroup_subsys_state *template[CGROUP_SUBSYS_COUNT]; @@ -412,7 +412,7 @@ static struct css_set *find_css_set( /* First see if we already have a cgroup group that matches * the desired set */ write_lock(&css_set_lock); - res = find_existing_css_set(oldcg, cont, template); + res = find_existing_css_set(oldcg, cgrp, template); if (res) get_css_set(res); write_unlock(&css_set_lock); @@ -441,9 +441,9 @@ static struct css_set *find_css_set( write_lock(&css_set_lock); /* Add reference counts and links from the new css_set. */ for (i = 0; i < CGROUP_SUBSYS_COUNT; i++) { - struct cgroup *cont = res->subsys[i]->cgroup; + struct cgroup *cgrp = res->subsys[i]->cgroup; struct cgroup_subsys *ss = subsys[i]; - atomic_inc(&cont->count); + atomic_inc(&cgrp->count); /* * We want to add a link once per cgroup, so we * only do it for the first subsystem in each @@ -453,9 +453,9 @@ static struct css_set *find_css_set( BUG_ON(list_empty(&tmp_cg_links)); link = list_entry(tmp_cg_links.next, struct cg_cgroup_link, - cont_link_list); - list_del(&link->cont_link_list); - list_add(&link->cont_link_list, &cont->css_sets); + cgrp_link_list); + list_del(&link->cgrp_link_list); + list_add(&link->cgrp_link_list, &cgrp->css_sets); link->cg = res; list_add(&link->cg_link_list, &res->cg_links); } @@ -463,9 +463,9 @@ static struct css_set *find_css_set( if (list_empty(&rootnode.subsys_list)) { link = list_entry(tmp_cg_links.next, struct cg_cgroup_link, - cont_link_list); - list_del(&link->cont_link_list); - list_add(&link->cont_link_list, &dummytop->css_sets); + cgrp_link_list); + list_del(&link->cgrp_link_list); + list_add(&link->cgrp_link_list, &dummytop->css_sets); link->cg = res; list_add(&link->cg_link_list, &res->cg_links); } @@ -565,7 +565,7 @@ void cgroup_unlock(void) static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode); static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry); -static int cgroup_populate_dir(struct cgroup *cont); +static int cgroup_populate_dir(struct cgroup *cgrp); static struct inode_operations cgroup_dir_inode_operations; static struct file_operations proc_cgroupstats_operations; @@ -592,8 +592,8 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode) { /* is dentry a directory ? if so, kfree() associated cgroup */ if (S_ISDIR(inode->i_mode)) { - struct cgroup *cont = dentry->d_fsdata; - BUG_ON(!(cgroup_is_removed(cont))); + struct cgroup *cgrp = dentry->d_fsdata; + BUG_ON(!(cgroup_is_removed(cgrp))); /* It's possible for external users to be holding css * reference counts on a cgroup; css_put() needs to * be able to access the cgroup after decrementing @@ -601,7 +601,7 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode) * queue the cgroup to be handled by the release * agent */ synchronize_rcu(); - kfree(cont); + kfree(cgrp); } iput(inode); } @@ -658,7 +658,7 @@ static int rebind_subsystems(struct cgroupfs_root *root, unsigned long final_bits) { unsigned long added_bits, removed_bits; - struct cgroup *cont = &root->top_cgroup; + struct cgroup *cgrp = &root->top_cgroup; int i; removed_bits = root->actual_subsys_bits & ~final_bits; @@ -679,7 +679,7 @@ static int rebind_subsystems(struct cgroupfs_root *root, * any child cgroups exist. This is theoretically supportable * but involves complex error handling, so it's being left until * later */ - if (!list_empty(&cont->children)) + if (!list_empty(&cgrp->children)) return -EBUSY; /* Process each subsystem */ @@ -688,32 +688,32 @@ static int rebind_subsystems(struct cgroupfs_root *root, unsigned long bit = 1UL << i; if (bit & added_bits) { /* We're binding this subsystem to this hierarchy */ - BUG_ON(cont->subsys[i]); + BUG_ON(cgrp->subsys[i]); BUG_ON(!dummytop->subsys[i]); BUG_ON(dummytop->subsys[i]->cgroup != dummytop); - cont->subsys[i] = dummytop->subsys[i]; - cont->subsys[i]->cgroup = cont; + cgrp->subsys[i] = dummytop->subsys[i]; + cgrp->subsys[i]->cgroup = cgrp; list_add(&ss->sibling, &root->subsys_list); rcu_assign_pointer(ss->root, root); if (ss->bind) - ss->bind(ss, cont); + ss->bind(ss, cgrp); } else if (bit & removed_bits) { /* We're removing this subsystem */ - BUG_ON(cont->subsys[i] != dummytop->subsys[i]); - BUG_ON(cont->subsys[i]->cgroup != cont); + BUG_ON(cgrp->subsys[i] != dummytop->subsys[i]); + BUG_ON(cgrp->subsys[i]->cgroup != cgrp); if (ss->bind) ss->bind(ss, dummytop); dummytop->subsys[i]->cgroup = dummytop; - cont->subsys[i] = NULL; + cgrp->subsys[i] = NULL; rcu_assign_pointer(subsys[i]->root, &rootnode); list_del(&ss->sibling); } else if (bit & final_bits) { /* Subsystem state should already exist */ - BUG_ON(!cont->subsys[i]); + BUG_ON(!cgrp->subsys[i]); } else { /* Subsystem state shouldn't exist */ - BUG_ON(cont->subsys[i]); + BUG_ON(cgrp->subsys[i]); } } root->subsys_bits = root->actual_subsys_bits = final_bits; @@ -797,10 +797,10 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data) { int ret = 0; struct cgroupfs_root *root = sb->s_fs_info; - struct cgroup *cont = &root->top_cgroup; + struct cgroup *cgrp = &root->top_cgroup; struct cgroup_sb_opts opts; - mutex_lock(&cont->dentry->d_inode->i_mutex); + mutex_lock(&cgrp->dentry->d_inode->i_mutex); mutex_lock(&cgroup_mutex); /* See what subsystems are wanted */ @@ -818,7 +818,7 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data) /* (re)populate subsystem files */ if (!ret) - cgroup_populate_dir(cont); + cgroup_populate_dir(cgrp); if (opts.release_agent) strcpy(root->release_agent_path, opts.release_agent); @@ -826,7 +826,7 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data) if (opts.release_agent) kfree(opts.release_agent); mutex_unlock(&cgroup_mutex); - mutex_unlock(&cont->dentry->d_inode->i_mutex); + mutex_unlock(&cgrp->dentry->d_inode->i_mutex); return ret; } @@ -839,16 +839,16 @@ static struct super_operations cgroup_ops = { static void init_cgroup_root(struct cgroupfs_root *root) { - struct cgroup *cont = &root->top_cgroup; + struct cgroup *cgrp = &root->top_cgroup; INIT_LIST_HEAD(&root->subsys_list); INIT_LIST_HEAD(&root->root_list); root->number_of_cgroups = 1; - cont->root = root; - cont->top_cgroup = cont; - INIT_LIST_HEAD(&cont->sibling); - INIT_LIST_HEAD(&cont->children); - INIT_LIST_HEAD(&cont->css_sets); - INIT_LIST_HEAD(&cont->release_list); + cgrp->root = root; + cgrp->top_cgroup = cgrp; + INIT_LIST_HEAD(&cgrp->sibling); + INIT_LIST_HEAD(&cgrp->children); + INIT_LIST_HEAD(&cgrp->css_sets); + INIT_LIST_HEAD(&cgrp->release_list); } static int cgroup_test_super(struct super_block *sb, void *data) @@ -955,7 +955,7 @@ static int cgroup_get_sb(struct file_system_type *fs_type, root = NULL; } else { /* New superblock */ - struct cgroup *cont = &root->top_cgroup; + struct cgroup *cgrp = &root->top_cgroup; struct inode *inode; BUG_ON(sb->s_root != NULL); @@ -1009,10 +1009,10 @@ static int cgroup_get_sb(struct file_system_type *fs_type, BUG_ON(list_empty(&tmp_cg_links)); link = list_entry(tmp_cg_links.next, struct cg_cgroup_link, - cont_link_list); - list_del(&link->cont_link_list); + cgrp_link_list); + list_del(&link->cgrp_link_list); link->cg = cg; - list_add(&link->cont_link_list, + list_add(&link->cgrp_link_list, &root->top_cgroup.css_sets); list_add(&link->cg_link_list, &cg->cg_links); l = l->next; @@ -1021,11 +1021,11 @@ static int cgroup_get_sb(struct file_system_type *fs_type, free_cg_links(&tmp_cg_links); - BUG_ON(!list_empty(&cont->sibling)); - BUG_ON(!list_empty(&cont->children)); + BUG_ON(!list_empty(&cgrp->sibling)); + BUG_ON(!list_empty(&cgrp->children)); BUG_ON(root->number_of_cgroups != 1); - cgroup_populate_dir(cont); + cgroup_populate_dir(cgrp); mutex_unlock(&inode->i_mutex); mutex_unlock(&cgroup_mutex); } @@ -1041,14 +1041,14 @@ static int cgroup_get_sb(struct file_system_type *fs_type, static void cgroup_kill_sb(struct super_block *sb) { struct cgroupfs_root *root = sb->s_fs_info; - struct cgroup *cont = &root->top_cgroup; + struct cgroup *cgrp = &root->top_cgroup; int ret; BUG_ON(!root); BUG_ON(root->number_of_cgroups != 1); - BUG_ON(!list_empty(&cont->children)); - BUG_ON(!list_empty(&cont->sibling)); + BUG_ON(!list_empty(&cgrp->children)); + BUG_ON(!list_empty(&cgrp->sibling)); mutex_lock(&cgroup_mutex); @@ -1062,12 +1062,12 @@ static void cgroup_kill_sb(struct super_block *sb) { * root cgroup */ write_lock(&css_set_lock); - while (!list_empty(&cont->css_sets)) { + while (!list_empty(&cgrp->css_sets)) { struct cg_cgroup_link *link; - link = list_entry(cont->css_sets.next, - struct cg_cgroup_link, cont_link_list); + link = list_entry(cgrp->css_sets.next, + struct cg_cgroup_link, cgrp_link_list); list_del(&link->cg_link_list); - list_del(&link->cont_link_list); + list_del(&link->cgrp_link_list); kfree(link); } write_unlock(&css_set_lock); @@ -1088,7 +1088,7 @@ static struct file_system_type cgroup_fs_type = { .kill_sb = cgroup_kill_sb, }; -static inline struct cgroup *__d_cont(struct dentry *dentry) +static inline struct cgroup *__d_cgrp(struct dentry *dentry) { return dentry->d_fsdata; } @@ -1102,11 +1102,11 @@ static inline struct cftype *__d_cft(struct dentry *dentry) * Called with cgroup_mutex held. Writes path of cgroup into buf. * Returns 0 on success, -errno on error. */ -int cgroup_path(const struct cgroup *cont, char *buf, int buflen) +int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen) { char *start; - if (cont == dummytop) { + if (cgrp == dummytop) { /* * Inactive subsystems have no dentry for their root * cgroup @@ -1119,14 +1119,14 @@ int cgroup_path(const struct cgroup *cont, char *buf, int buflen) *--start = '\0'; for (;;) { - int len = cont->dentry->d_name.len; + int len = cgrp->dentry->d_name.len; if ((start -= len) < buf) return -ENAMETOOLONG; - memcpy(start, cont->dentry->d_name.name, len); - cont = cont->parent; - if (!cont) + memcpy(start, cgrp->dentry->d_name.name, len); + cgrp = cgrp->parent; + if (!cgrp) break; - if (!cont->parent) + if (!cgrp->parent) continue; if (--start < buf) return -ENAMETOOLONG; @@ -1141,16 +1141,16 @@ int cgroup_path(const struct cgroup *cont, char *buf, int buflen) * its subsystem id. */ -static void get_first_subsys(const struct cgroup *cont, +static void get_first_subsys(const struct cgroup *cgrp, struct cgroup_subsys_state **css, int *subsys_id) { - const struct cgroupfs_root *root = cont->root; + const struct cgroupfs_root *root = cgrp->root; const struct cgroup_subsys *test_ss; BUG_ON(list_empty(&root->subsys_list)); test_ss = list_entry(root->subsys_list.next, struct cgroup_subsys, sibling); if (css) { - *css = cont->subsys[test_ss->subsys_id]; + *css = cgrp->subsys[test_ss->subsys_id]; BUG_ON(!*css); } if (subsys_id) @@ -1158,31 +1158,31 @@ static void get_first_subsys(const struct cgroup *cont, } /* - * Attach task 'tsk' to cgroup 'cont' + * Attach task 'tsk' to cgroup 'cgrp' * * Call holding cgroup_mutex. May take task_lock of * the task 'pid' during call. */ -static int attach_task(struct cgroup *cont, struct task_struct *tsk) +static int attach_task(struct cgroup *cgrp, struct task_struct *tsk) { int retval = 0; struct cgroup_subsys *ss; - struct cgroup *oldcont; + struct cgroup *oldcgrp; struct css_set *cg = tsk->cgroups; struct css_set *newcg; - struct cgroupfs_root *root = cont->root; + struct cgroupfs_root *root = cgrp->root; int subsys_id; - get_first_subsys(cont, NULL, &subsys_id); + get_first_subsys(cgrp, NULL, &subsys_id); /* Nothing to do if the task is already in that cgroup */ - oldcont = task_cgroup(tsk, subsys_id); - if (cont == oldcont) + oldcgrp = task_cgroup(tsk, subsys_id); + if (cgrp == oldcgrp) return 0; for_each_subsys(root, ss) { if (ss->can_attach) { - retval = ss->can_attach(ss, cont, tsk); + retval = ss->can_attach(ss, cgrp, tsk); if (retval) { return retval; } @@ -1193,7 +1193,7 @@ static int attach_task(struct cgroup *cont, struct task_struct *tsk) * Locate or allocate a new css_set for this task, * based on its final set of cgroups */ - newcg = find_css_set(cg, cont); + newcg = find_css_set(cg, cgrp); if (!newcg) { return -ENOMEM; } @@ -1217,20 +1217,20 @@ static int attach_task(struct cgroup *cont, struct task_struct *tsk) for_each_subsys(root, ss) { if (ss->attach) { - ss->attach(ss, cont, oldcont, tsk); + ss->attach(ss, cgrp, oldcgrp, tsk); } } - set_bit(CONT_RELEASABLE, &oldcont->flags); + set_bit(CGRP_RELEASABLE, &oldcgrp->flags); synchronize_rcu(); put_css_set(cg); return 0; } /* - * Attach task with pid 'pid' to cgroup 'cont'. Call with + * Attach task with pid 'pid' to cgroup 'cgrp'. Call with * cgroup_mutex, may take task_lock of task */ -static int attach_task_by_pid(struct cgroup *cont, char *pidbuf) +static int attach_task_by_pid(struct cgroup *cgrp, char *pidbuf) { pid_t pid; struct task_struct *tsk; @@ -1259,7 +1259,7 @@ static int attach_task_by_pid(struct cgroup *cont, char *pidbuf) get_task_struct(tsk); } - ret = attach_task(cont, tsk); + ret = attach_task(cgrp, tsk); put_task_struct(tsk); return ret; } @@ -1275,7 +1275,7 @@ enum cgroup_filetype { FILE_RELEASE_AGENT, }; -static ssize_t cgroup_write_uint(struct cgroup *cont, struct cftype *cft, +static ssize_t cgroup_write_uint(struct cgroup *cgrp, struct cftype *cft, struct file *file, const char __user *userbuf, size_t nbytes, loff_t *unused_ppos) @@ -1302,13 +1302,13 @@ static ssize_t cgroup_write_uint(struct cgroup *cont, struct cftype *cft, return -EINVAL; /* Pass to subsystem */ - retval = cft->write_uint(cont, cft, val); + retval = cft->write_uint(cgrp, cft, val); if (!retval) retval = nbytes; return retval; } -static ssize_t cgroup_common_file_write(struct cgroup *cont, +static ssize_t cgroup_common_file_write(struct cgroup *cgrp, struct cftype *cft, struct file *file, const char __user *userbuf, @@ -1334,25 +1334,25 @@ static ssize_t cgroup_common_file_write(struct cgroup *cont, mutex_lock(&cgroup_mutex); - if (cgroup_is_removed(cont)) { + if (cgroup_is_removed(cgrp)) { retval = -ENODEV; goto out2; } switch (type) { case FILE_TASKLIST: - retval = attach_task_by_pid(cont, buffer); + retval = attach_task_by_pid(cgrp, buffer); break; case FILE_NOTIFY_ON_RELEASE: - clear_bit(CONT_RELEASABLE, &cont->flags); + clear_bit(CGRP_RELEASABLE, &cgrp->flags); if (simple_strtoul(buffer, NULL, 10) != 0) - set_bit(CONT_NOTIFY_ON_RELEASE, &cont->flags); + set_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags); else - clear_bit(CONT_NOTIFY_ON_RELEASE, &cont->flags); + clear_bit(CGRP_NOTIFY_ON_RELEASE, &cgrp->flags); break; case FILE_RELEASE_AGENT: { - struct cgroupfs_root *root = cont->root; + struct cgroupfs_root *root = cgrp->root; /* Strip trailing newline */ if (nbytes && (buffer[nbytes-1] == '\n')) { buffer[nbytes-1] = 0; @@ -1387,30 +1387,30 @@ static ssize_t cgroup_file_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos) { struct cftype *cft = __d_cft(file->f_dentry); - struct cgroup *cont = __d_cont(file->f_dentry->d_parent); + struct cgroup *cgrp = __d_cgrp(file->f_dentry->d_parent); if (!cft) return -ENODEV; if (cft->write) - return cft->write(cont, cft, file, buf, nbytes, ppos); + return cft->write(cgrp, cft, file, buf, nbytes, ppos); if (cft->write_uint) - return cgroup_write_uint(cont, cft, file, buf, nbytes, ppos); + return cgroup_write_uint(cgrp, cft, file, buf, nbytes, ppos); return -EINVAL; } -static ssize_t cgroup_read_uint(struct cgroup *cont, struct cftype *cft, +static ssize_t cgroup_read_uint(struct cgroup *cgrp, struct cftype *cft, struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { char tmp[64]; - u64 val = cft->read_uint(cont, cft); + u64 val = cft->read_uint(cgrp, cft); int len = sprintf(tmp, "%llu\n", (unsigned long long) val); return simple_read_from_buffer(buf, nbytes, ppos, tmp, len); } -static ssize_t cgroup_common_file_read(struct cgroup *cont, +static ssize_t cgroup_common_file_read(struct cgroup *cgrp, struct cftype *cft, struct file *file, char __user *buf, @@ -1432,7 +1432,7 @@ static ssize_t cgroup_common_file_read(struct cgroup *cont, struct cgroupfs_root *root; size_t n; mutex_lock(&cgroup_mutex); - root = cont->root; + root = cgrp->root; n = strnlen(root->release_agent_path, sizeof(root->release_agent_path)); n = min(n, (size_t) PAGE_SIZE); @@ -1457,15 +1457,15 @@ static ssize_t cgroup_file_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { struct cftype *cft = __d_cft(file->f_dentry); - struct cgroup *cont = __d_cont(file->f_dentry->d_parent); + struct cgroup *cgrp = __d_cgrp(file->f_dentry->d_parent); if (!cft) return -ENODEV; if (cft->read) - return cft->read(cont, cft, file, buf, nbytes, ppos); + return cft->read(cgrp, cft, file, buf, nbytes, ppos); if (cft->read_uint) - return cgroup_read_uint(cont, cft, file, buf, nbytes, ppos); + return cgroup_read_uint(cgrp, cft, file, buf, nbytes, ppos); return -EINVAL; } @@ -1567,24 +1567,24 @@ static int cgroup_create_file(struct dentry *dentry, int mode, /* * cgroup_create_dir - create a directory for an object. - * cont: the cgroup we create the directory for. + * cgrp: the cgroup we create the directory for. * It must have a valid ->parent field * And we are going to fill its ->dentry field. - * dentry: dentry of the new container + * dentry: dentry of the new cgroup * mode: mode to set on new directory. */ -static int cgroup_create_dir(struct cgroup *cont, struct dentry *dentry, +static int cgroup_create_dir(struct cgroup *cgrp, struct dentry *dentry, int mode) { struct dentry *parent; int error = 0; - parent = cont->parent->dentry; - error = cgroup_create_file(dentry, S_IFDIR | mode, cont->root->sb); + parent = cgrp->parent->dentry; + error = cgroup_create_file(dentry, S_IFDIR | mode, cgrp->root->sb); if (!error) { - dentry->d_fsdata = cont; + dentry->d_fsdata = cgrp; inc_nlink(parent->d_inode); - cont->dentry = dentry; + cgrp->dentry = dentry; dget(dentry); } dput(dentry); @@ -1592,16 +1592,16 @@ static int cgroup_create_dir(struct cgroup *cont, struct dentry *dentry, return error; } -int cgroup_add_file(struct cgroup *cont, +int cgroup_add_file(struct cgroup *cgrp, struct cgroup_subsys *subsys, const struct cftype *cft) { - struct dentry *dir = cont->dentry; + struct dentry *dir = cgrp->dentry; struct dentry *dentry; int error; char name[MAX_CGROUP_TYPE_NAMELEN + MAX_CFTYPE_NAME + 2] = { 0 }; - if (subsys && !test_bit(ROOT_NOPREFIX, &cont->root->flags)) { + if (subsys && !test_bit(ROOT_NOPREFIX, &cgrp->root->flags)) { strcpy(name, subsys->name); strcat(name, "."); } @@ -1610,7 +1610,7 @@ int cgroup_add_file(struct cgroup *cont, dentry = lookup_one_len(name, dir, strlen(name)); if (!IS_ERR(dentry)) { error = cgroup_create_file(dentry, 0644 | S_IFREG, - cont->root->sb); + cgrp->root->sb); if (!error) dentry->d_fsdata = (void *)cft; dput(dentry); @@ -1619,14 +1619,14 @@ int cgroup_add_file(struct cgroup *cont, return error; } -int cgroup_add_files(struct cgroup *cont, +int cgroup_add_files(struct cgroup *cgrp, struct cgroup_subsys *subsys, const struct cftype cft[], int count) { int i, err; for (i = 0; i < count; i++) { - err = cgroup_add_file(cont, subsys, &cft[i]); + err = cgroup_add_file(cgrp, subsys, &cft[i]); if (err) return err; } @@ -1635,16 +1635,16 @@ int cgroup_add_files(struct cgroup *cont, /* Count the number of tasks in a cgroup. */ -int cgroup_task_count(const struct cgroup *cont) +int cgroup_task_count(const struct cgroup *cgrp) { int count = 0; struct list_head *l; read_lock(&css_set_lock); - l = cont->css_sets.next; - while (l != &cont->css_sets) { + l = cgrp->css_sets.next; + while (l != &cgrp->css_sets) { struct cg_cgroup_link *link = - list_entry(l, struct cg_cgroup_link, cont_link_list); + list_entry(l, struct cg_cgroup_link, cgrp_link_list); count += atomic_read(&link->cg->ref.refcount); l = l->next; } @@ -1656,7 +1656,7 @@ int cgroup_task_count(const struct cgroup *cont) * Advance a list_head iterator. The iterator should be positioned at * the start of a css_set */ -static void cgroup_advance_iter(struct cgroup *cont, +static void cgroup_advance_iter(struct cgroup *cgrp, struct cgroup_iter *it) { struct list_head *l = it->cg_link; @@ -1666,18 +1666,18 @@ static void cgroup_advance_iter(struct cgroup *cont, /* Advance to the next non-empty css_set */ do { l = l->next; - if (l == &cont->css_sets) { + if (l == &cgrp->css_sets) { it->cg_link = NULL; return; } - link = list_entry(l, struct cg_cgroup_link, cont_link_list); + link = list_entry(l, struct cg_cgroup_link, cgrp_link_list); cg = link->cg; } while (list_empty(&cg->tasks)); it->cg_link = l; it->task = cg->tasks.next; } -void cgroup_iter_start(struct cgroup *cont, struct cgroup_iter *it) +void cgroup_iter_start(struct cgroup *cgrp, struct cgroup_iter *it) { /* * The first time anyone tries to iterate across a cgroup, @@ -1697,11 +1697,11 @@ void cgroup_iter_start(struct cgroup *cont, struct cgroup_iter *it) write_unlock(&css_set_lock); } read_lock(&css_set_lock); - it->cg_link = &cont->css_sets; - cgroup_advance_iter(cont, it); + it->cg_link = &cgrp->css_sets; + cgroup_advance_iter(cgrp, it); } -struct task_struct *cgroup_iter_next(struct cgroup *cont, +struct task_struct *cgroup_iter_next(struct cgroup *cgrp, struct cgroup_iter *it) { struct task_struct *res; @@ -1716,14 +1716,14 @@ struct task_struct *cgroup_iter_next(struct cgroup *cont, if (l == &res->cgroups->tasks) { /* We reached the end of this task list - move on to * the next cg_cgroup_link */ - cgroup_advance_iter(cont, it); + cgroup_advance_iter(cgrp, it); } else { it->task = l; } return res; } -void cgroup_iter_end(struct cgroup *cont, struct cgroup_iter *it) +void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it) { read_unlock(&css_set_lock); } @@ -1749,23 +1749,23 @@ struct ctr_struct { /* * Load into 'pidarray' up to 'npids' of the tasks using cgroup - * 'cont'. Return actual number of pids loaded. No need to + * 'cgrp'. Return actual number of pids loaded. No need to * task_lock(p) when reading out p->cgroup, since we're in an RCU * read section, so the css_set can't go away, and is * immutable after creation. */ -static int pid_array_load(pid_t *pidarray, int npids, struct cgroup *cont) +static int pid_array_load(pid_t *pidarray, int npids, struct cgroup *cgrp) { int n = 0; struct cgroup_iter it; struct task_struct *tsk; - cgroup_iter_start(cont, &it); - while ((tsk = cgroup_iter_next(cont, &it))) { + cgroup_iter_start(cgrp, &it); + while ((tsk = cgroup_iter_next(cgrp, &it))) { if (unlikely(n == npids)) break; pidarray[n++] = task_pid_nr(tsk); } - cgroup_iter_end(cont, &it); + cgroup_iter_end(cgrp, &it); return n; } @@ -1780,7 +1780,7 @@ static int pid_array_load(pid_t *pidarray, int npids, struct cgroup *cont) int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) { int ret = -EINVAL; - struct cgroup *cont; + struct cgroup *cgrp; struct cgroup_iter it; struct task_struct *tsk; /* @@ -1790,11 +1790,11 @@ int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) goto err; ret = 0; - cont = dentry->d_fsdata; + cgrp = dentry->d_fsdata; rcu_read_lock(); - cgroup_iter_start(cont, &it); - while ((tsk = cgroup_iter_next(cont, &it))) { + cgroup_iter_start(cgrp, &it); + while ((tsk = cgroup_iter_next(cgrp, &it))) { switch (tsk->state) { case TASK_RUNNING: stats->nr_running++; @@ -1814,7 +1814,7 @@ int cgroupstats_build(struct cgroupstats *stats, struct dentry *dentry) break; } } - cgroup_iter_end(cont, &it); + cgroup_iter_end(cgrp, &it); rcu_read_unlock(); err: @@ -1849,7 +1849,7 @@ static int pid_array_to_buf(char *buf, int sz, pid_t *a, int npids) */ static int cgroup_tasks_open(struct inode *unused, struct file *file) { - struct cgroup *cont = __d_cont(file->f_dentry->d_parent); + struct cgroup *cgrp = __d_cgrp(file->f_dentry->d_parent); struct ctr_struct *ctr; pid_t *pidarray; int npids; @@ -1868,13 +1868,13 @@ static int cgroup_tasks_open(struct inode *unused, struct file *file) * caller from the case that the additional cgroup users didn't * show up until sometime later on. */ - npids = cgroup_task_count(cont); + npids = cgroup_task_count(cgrp); if (npids) { pidarray = kmalloc(npids * sizeof(pid_t), GFP_KERNEL); if (!pidarray) goto err1; - npids = pid_array_load(pidarray, npids, cont); + npids = pid_array_load(pidarray, npids, cgrp); sort(pidarray, npids, sizeof(pid_t), cmppid, NULL); /* Call pid_array_to_buf() twice, first just to get bufsz */ @@ -1900,7 +1900,7 @@ err0: return -ENOMEM; } -static ssize_t cgroup_tasks_read(struct cgroup *cont, +static ssize_t cgroup_tasks_read(struct cgroup *cgrp, struct cftype *cft, struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) @@ -1923,15 +1923,15 @@ static int cgroup_tasks_release(struct inode *unused_inode, return 0; } -static u64 cgroup_read_notify_on_release(struct cgroup *cont, +static u64 cgroup_read_notify_on_release(struct cgroup *cgrp, struct cftype *cft) { - return notify_on_release(cont); + return notify_on_release(cgrp); } -static u64 cgroup_read_releasable(struct cgroup *cont, struct cftype *cft) +static u64 cgroup_read_releasable(struct cgroup *cgrp, struct cftype *cft) { - return test_bit(CONT_RELEASABLE, &cont->flags); + return test_bit(CGRP_RELEASABLE, &cgrp->flags); } /* @@ -1968,25 +1968,25 @@ static struct cftype cft_release_agent = { .private = FILE_RELEASE_AGENT, }; -static int cgroup_populate_dir(struct cgroup *cont) +static int cgroup_populate_dir(struct cgroup *cgrp) { int err; struct cgroup_subsys *ss; /* First clear out any existing files */ - cgroup_clear_directory(cont->dentry); + cgroup_clear_directory(cgrp->dentry); - err = cgroup_add_files(cont, NULL, files, ARRAY_SIZE(files)); + err = cgroup_add_files(cgrp, NULL, files, ARRAY_SIZE(files)); if (err < 0) return err; - if (cont == cont->top_cgroup) { - if ((err = cgroup_add_file(cont, NULL, &cft_release_agent)) < 0) + if (cgrp == cgrp->top_cgroup) { + if ((err = cgroup_add_file(cgrp, NULL, &cft_release_agent)) < 0) return err; } - for_each_subsys(cont->root, ss) { - if (ss->populate && (err = ss->populate(ss, cont)) < 0) + for_each_subsys(cgrp->root, ss) { + if (ss->populate && (err = ss->populate(ss, cgrp)) < 0) return err; } @@ -1995,15 +1995,15 @@ static int cgroup_populate_dir(struct cgroup *cont) static void init_cgroup_css(struct cgroup_subsys_state *css, struct cgroup_subsys *ss, - struct cgroup *cont) + struct cgroup *cgrp) { - css->cgroup = cont; + css->cgroup = cgrp; atomic_set(&css->refcnt, 0); css->flags = 0; - if (cont == dummytop) + if (cgrp == dummytop) set_bit(CSS_ROOT, &css->flags); - BUG_ON(cont->subsys[ss->subsys_id]); - cont->subsys[ss->subsys_id] = css; + BUG_ON(cgrp->subsys[ss->subsys_id]); + cgrp->subsys[ss->subsys_id] = css; } /* @@ -2018,14 +2018,14 @@ static void init_cgroup_css(struct cgroup_subsys_state *css, static long cgroup_create(struct cgroup *parent, struct dentry *dentry, int mode) { - struct cgroup *cont; + struct cgroup *cgrp; struct cgroupfs_root *root = parent->root; int err = 0; struct cgroup_subsys *ss; struct super_block *sb = root->sb; - cont = kzalloc(sizeof(*cont), GFP_KERNEL); - if (!cont) + cgrp = kzalloc(sizeof(*cgrp), GFP_KERNEL); + if (!cgrp) return -ENOMEM; /* Grab a reference on the superblock so the hierarchy doesn't @@ -2037,53 +2037,53 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, mutex_lock(&cgroup_mutex); - cont->flags = 0; - INIT_LIST_HEAD(&cont->sibling); - INIT_LIST_HEAD(&cont->children); - INIT_LIST_HEAD(&cont->css_sets); - INIT_LIST_HEAD(&cont->release_list); + cgrp->flags = 0; + INIT_LIST_HEAD(&cgrp->sibling); + INIT_LIST_HEAD(&cgrp->children); + INIT_LIST_HEAD(&cgrp->css_sets); + INIT_LIST_HEAD(&cgrp->release_list); - cont->parent = parent; - cont->root = parent->root; - cont->top_cgroup = parent->top_cgroup; + cgrp->parent = parent; + cgrp->root = parent->root; + cgrp->top_cgroup = parent->top_cgroup; for_each_subsys(root, ss) { - struct cgroup_subsys_state *css = ss->create(ss, cont); + struct cgroup_subsys_state *css = ss->create(ss, cgrp); if (IS_ERR(css)) { err = PTR_ERR(css); goto err_destroy; } - init_cgroup_css(css, ss, cont); + init_cgroup_css(css, ss, cgrp); } - list_add(&cont->sibling, &cont->parent->children); + list_add(&cgrp->sibling, &cgrp->parent->children); root->number_of_cgroups++; - err = cgroup_create_dir(cont, dentry, mode); + err = cgroup_create_dir(cgrp, dentry, mode); if (err < 0) goto err_remove; /* The cgroup directory was pre-locked for us */ - BUG_ON(!mutex_is_locked(&cont->dentry->d_inode->i_mutex)); + BUG_ON(!mutex_is_locked(&cgrp->dentry->d_inode->i_mutex)); - err = cgroup_populate_dir(cont); + err = cgroup_populate_dir(cgrp); /* If err < 0, we have a half-filled directory - oh well ;) */ mutex_unlock(&cgroup_mutex); - mutex_unlock(&cont->dentry->d_inode->i_mutex); + mutex_unlock(&cgrp->dentry->d_inode->i_mutex); return 0; err_remove: - list_del(&cont->sibling); + list_del(&cgrp->sibling); root->number_of_cgroups--; err_destroy: for_each_subsys(root, ss) { - if (cont->subsys[ss->subsys_id]) - ss->destroy(ss, cont); + if (cgrp->subsys[ss->subsys_id]) + ss->destroy(ss, cgrp); } mutex_unlock(&cgroup_mutex); @@ -2091,7 +2091,7 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry, /* Release the reference count that we took on the superblock */ deactivate_super(sb); - kfree(cont); + kfree(cgrp); return err; } @@ -2103,7 +2103,7 @@ static int cgroup_mkdir(struct inode *dir, struct dentry *dentry, int mode) return cgroup_create(c_parent, dentry, mode | S_IFDIR); } -static inline int cgroup_has_css_refs(struct cgroup *cont) +static inline int cgroup_has_css_refs(struct cgroup *cgrp) { /* Check the reference count on each subsystem. Since we * already established that there are no tasks in the @@ -2119,9 +2119,9 @@ static inline int cgroup_has_css_refs(struct cgroup *cont) struct cgroup_subsys *ss = subsys[i]; struct cgroup_subsys_state *css; /* Skip subsystems not in this hierarchy */ - if (ss->root != cont->root) + if (ss->root != cgrp->root) continue; - css = cont->subsys[ss->subsys_id]; + css = cgrp->subsys[ss->subsys_id]; /* When called from check_for_release() it's possible * that by this point the cgroup has been removed * and the css deleted. But a false-positive doesn't @@ -2137,7 +2137,7 @@ static inline int cgroup_has_css_refs(struct cgroup *cont) static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry) { - struct cgroup *cont = dentry->d_fsdata; + struct cgroup *cgrp = dentry->d_fsdata; struct dentry *d; struct cgroup *parent; struct cgroup_subsys *ss; @@ -2147,46 +2147,46 @@ static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry) /* the vfs holds both inode->i_mutex already */ mutex_lock(&cgroup_mutex); - if (atomic_read(&cont->count) != 0) { + if (atomic_read(&cgrp->count) != 0) { mutex_unlock(&cgroup_mutex); return -EBUSY; } - if (!list_empty(&cont->children)) { + if (!list_empty(&cgrp->children)) { mutex_unlock(&cgroup_mutex); return -EBUSY; } - parent = cont->parent; - root = cont->root; + parent = cgrp->parent; + root = cgrp->root; sb = root->sb; - if (cgroup_has_css_refs(cont)) { + if (cgroup_has_css_refs(cgrp)) { mutex_unlock(&cgroup_mutex); return -EBUSY; } for_each_subsys(root, ss) { - if (cont->subsys[ss->subsys_id]) - ss->destroy(ss, cont); + if (cgrp->subsys[ss->subsys_id]) + ss->destroy(ss, cgrp); } spin_lock(&release_list_lock); - set_bit(CONT_REMOVED, &cont->flags); - if (!list_empty(&cont->release_list)) - list_del(&cont->release_list); + set_bit(CGRP_REMOVED, &cgrp->flags); + if (!list_empty(&cgrp->release_list)) + list_del(&cgrp->release_list); spin_unlock(&release_list_lock); /* delete my sibling from parent->children */ - list_del(&cont->sibling); - spin_lock(&cont->dentry->d_lock); - d = dget(cont->dentry); - cont->dentry = NULL; + list_del(&cgrp->sibling); + spin_lock(&cgrp->dentry->d_lock); + d = dget(cgrp->dentry); + cgrp->dentry = NULL; spin_unlock(&d->d_lock); cgroup_d_remove_dir(d); dput(d); root->number_of_cgroups--; - set_bit(CONT_RELEASABLE, &parent->flags); + set_bit(CGRP_RELEASABLE, &parent->flags); check_for_release(parent); mutex_unlock(&cgroup_mutex); @@ -2260,7 +2260,7 @@ int __init cgroup_init_early(void) init_task.cgroups = &init_css_set; init_css_set_link.cg = &init_css_set; - list_add(&init_css_set_link.cont_link_list, + list_add(&init_css_set_link.cgrp_link_list, &rootnode.top_cgroup.css_sets); list_add(&init_css_set_link.cg_link_list, &init_css_set.cg_links); @@ -2357,7 +2357,7 @@ static int proc_cgroup_show(struct seq_file *m, void *v) for_each_root(root) { struct cgroup_subsys *ss; - struct cgroup *cont; + struct cgroup *cgrp; int subsys_id; int count = 0; @@ -2368,8 +2368,8 @@ static int proc_cgroup_show(struct seq_file *m, void *v) seq_printf(m, "%s%s", count++ ? "," : "", ss->name); seq_putc(m, ':'); get_first_subsys(&root->top_cgroup, NULL, &subsys_id); - cont = task_cgroup(tsk, subsys_id); - retval = cgroup_path(cont, buf, PAGE_SIZE); + cgrp = task_cgroup(tsk, subsys_id); + retval = cgroup_path(cgrp, buf, PAGE_SIZE); if (retval < 0) goto out_unlock; seq_puts(m, buf); @@ -2614,7 +2614,7 @@ int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *subsys) /* Create the cgroup directory, which also creates the cgroup */ ret = vfs_mkdir(inode, dentry, S_IFDIR | 0755); - child = __d_cont(dentry); + child = __d_cgrp(dentry); dput(dentry); if (ret) { printk(KERN_INFO @@ -2671,7 +2671,7 @@ int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *subsys) } /* - * See if "cont" is a descendant of the current task's cgroup in + * See if "cgrp" is a descendant of the current task's cgroup in * the appropriate hierarchy * * If we are sending in dummytop, then presumably we are creating @@ -2679,37 +2679,37 @@ int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *subsys) * * Called only by the ns (nsproxy) cgroup. */ -int cgroup_is_descendant(const struct cgroup *cont) +int cgroup_is_descendant(const struct cgroup *cgrp) { int ret; struct cgroup *target; int subsys_id; - if (cont == dummytop) + if (cgrp == dummytop) return 1; - get_first_subsys(cont, NULL, &subsys_id); + get_first_subsys(cgrp, NULL, &subsys_id); target = task_cgroup(current, subsys_id); - while (cont != target && cont!= cont->top_cgroup) - cont = cont->parent; - ret = (cont == target); + while (cgrp != target && cgrp!= cgrp->top_cgroup) + cgrp = cgrp->parent; + ret = (cgrp == target); return ret; } -static void check_for_release(struct cgroup *cont) +static void check_for_release(struct cgroup *cgrp) { /* All of these checks rely on RCU to keep the cgroup * structure alive */ - if (cgroup_is_releasable(cont) && !atomic_read(&cont->count) - && list_empty(&cont->children) && !cgroup_has_css_refs(cont)) { + if (cgroup_is_releasable(cgrp) && !atomic_read(&cgrp->count) + && list_empty(&cgrp->children) && !cgroup_has_css_refs(cgrp)) { /* Control Group is currently removeable. If it's not * already queued for a userspace notification, queue * it now */ int need_schedule_work = 0; spin_lock(&release_list_lock); - if (!cgroup_is_removed(cont) && - list_empty(&cont->release_list)) { - list_add(&cont->release_list, &release_list); + if (!cgroup_is_removed(cgrp) && + list_empty(&cgrp->release_list)) { + list_add(&cgrp->release_list, &release_list); need_schedule_work = 1; } spin_unlock(&release_list_lock); @@ -2720,11 +2720,11 @@ static void check_for_release(struct cgroup *cont) void __css_put(struct cgroup_subsys_state *css) { - struct cgroup *cont = css->cgroup; + struct cgroup *cgrp = css->cgroup; rcu_read_lock(); - if (atomic_dec_and_test(&css->refcnt) && notify_on_release(cont)) { - set_bit(CONT_RELEASABLE, &cont->flags); - check_for_release(cont); + if (atomic_dec_and_test(&css->refcnt) && notify_on_release(cgrp)) { + set_bit(CGRP_RELEASABLE, &cgrp->flags); + check_for_release(cgrp); } rcu_read_unlock(); } @@ -2763,10 +2763,10 @@ static void cgroup_release_agent(struct work_struct *work) char *argv[3], *envp[3]; int i; char *pathbuf; - struct cgroup *cont = list_entry(release_list.next, + struct cgroup *cgrp = list_entry(release_list.next, struct cgroup, release_list); - list_del_init(&cont->release_list); + list_del_init(&cgrp->release_list); spin_unlock(&release_list_lock); pathbuf = kmalloc(PAGE_SIZE, GFP_KERNEL); if (!pathbuf) { @@ -2774,14 +2774,14 @@ static void cgroup_release_agent(struct work_struct *work) continue; } - if (cgroup_path(cont, pathbuf, PAGE_SIZE) < 0) { + if (cgroup_path(cgrp, pathbuf, PAGE_SIZE) < 0) { kfree(pathbuf); spin_lock(&release_list_lock); continue; } i = 0; - argv[i++] = cont->root->release_agent_path; + argv[i++] = cgrp->root->release_agent_path; argv[i++] = (char *)pathbuf; argv[i] = NULL; |