diff options
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 53 | ||||
| -rw-r--r-- | fs/proc/meminfo.c | 15 | ||||
| -rw-r--r-- | fs/proc/stat.c | 2 |
3 files changed, 67 insertions, 3 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 590aeda5af12..3f3d7aeb0712 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -2464,6 +2464,57 @@ static const struct file_operations proc_projid_map_operations = { .llseek = seq_lseek, .release = proc_id_map_release, }; + +static int proc_setgroups_open(struct inode *inode, struct file *file) +{ + struct user_namespace *ns = NULL; + struct task_struct *task; + int ret; + + ret = -ESRCH; + task = get_proc_task(inode); + if (task) { + rcu_read_lock(); + ns = get_user_ns(task_cred_xxx(task, user_ns)); + rcu_read_unlock(); + put_task_struct(task); + } + if (!ns) + goto err; + + if (file->f_mode & FMODE_WRITE) { + ret = -EACCES; + if (!ns_capable(ns, CAP_SYS_ADMIN)) + goto err_put_ns; + } + + ret = single_open(file, &proc_setgroups_show, ns); + if (ret) + goto err_put_ns; + + return 0; +err_put_ns: + put_user_ns(ns); +err: + return ret; +} + +static int proc_setgroups_release(struct inode *inode, struct file *file) +{ + struct seq_file *seq = file->private_data; + struct user_namespace *ns = seq->private; + int ret = single_release(inode, file); + put_user_ns(ns); + return ret; +} + +static const struct file_operations proc_setgroups_operations = { + .open = proc_setgroups_open, + .write = proc_setgroups_write, + .read = seq_read, + .llseek = seq_lseek, + .release = proc_setgroups_release, +}; #endif /* CONFIG_USER_NS */ static int proc_pid_personality(struct seq_file *m, struct pid_namespace *ns, @@ -2572,6 +2623,7 @@ static const struct pid_entry tgid_base_stuff[] = { REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations), REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations), REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations), + REG("setgroups", S_IRUGO|S_IWUSR, proc_setgroups_operations), #endif #ifdef CONFIG_CHECKPOINT_RESTORE REG("timers", S_IRUGO, proc_timers_operations), @@ -2916,6 +2968,7 @@ static const struct pid_entry tid_base_stuff[] = { REG("uid_map", S_IRUGO|S_IWUSR, proc_uid_map_operations), REG("gid_map", S_IRUGO|S_IWUSR, proc_gid_map_operations), REG("projid_map", S_IRUGO|S_IWUSR, proc_projid_map_operations), + REG("setgroups", S_IRUGO|S_IWUSR, proc_setgroups_operations), #endif }; diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c index aa1eee06420f..d3ebf2e61853 100644 --- a/fs/proc/meminfo.c +++ b/fs/proc/meminfo.c @@ -12,6 +12,9 @@ #include <linux/vmstat.h> #include <linux/atomic.h> #include <linux/vmalloc.h> +#ifdef CONFIG_CMA +#include <linux/cma.h> +#endif #include <asm/page.h> #include <asm/pgtable.h> #include "internal.h" @@ -138,6 +141,10 @@ static int meminfo_proc_show(struct seq_file *m, void *v) #ifdef CONFIG_TRANSPARENT_HUGEPAGE "AnonHugePages: %8lu kB\n" #endif +#ifdef CONFIG_CMA + "CmaTotal: %8lu kB\n" + "CmaFree: %8lu kB\n" +#endif , K(i.totalram), K(i.freeram), @@ -187,12 +194,16 @@ static int meminfo_proc_show(struct seq_file *m, void *v) vmi.used >> 10, vmi.largest_chunk >> 10 #ifdef CONFIG_MEMORY_FAILURE - ,atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10) + , atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10) #endif #ifdef CONFIG_TRANSPARENT_HUGEPAGE - ,K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) * + , K(global_page_state(NR_ANON_TRANSPARENT_HUGEPAGES) * HPAGE_PMD_NR) #endif +#ifdef CONFIG_CMA + , K(totalcma_pages) + , K(global_page_state(NR_FREE_CMA_PAGES)) +#endif ); hugetlb_report_meminfo(m); diff --git a/fs/proc/stat.c b/fs/proc/stat.c index bf2d03f8fd3e..510413eb25b8 100644 --- a/fs/proc/stat.c +++ b/fs/proc/stat.c @@ -159,7 +159,7 @@ static int show_stat(struct seq_file *p, void *v) /* sum again ? it could be updated? */ for_each_irq_nr(j) - seq_put_decimal_ull(p, ' ', kstat_irqs(j)); + seq_put_decimal_ull(p, ' ', kstat_irqs_usr(j)); seq_printf(p, "\nctxt %llu\n" |
