diff options
Diffstat (limited to 'fs/proc')
-rw-r--r-- | fs/proc/Makefile | 1 | ||||
-rw-r--r-- | fs/proc/array.c | 17 | ||||
-rw-r--r-- | fs/proc/base.c | 2 | ||||
-rw-r--r-- | fs/proc/internal.h | 5 | ||||
-rw-r--r-- | fs/proc/proc_misc.c | 15 | ||||
-rw-r--r-- | fs/proc/proc_net.c | 200 | ||||
-rw-r--r-- | fs/proc/root.c | 8 |
7 files changed, 236 insertions, 12 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile index bce38e3f06c..ebaba021354 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile @@ -11,6 +11,7 @@ proc-y += inode.o root.o base.o generic.o array.o \ proc_tty.o proc_misc.o proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o +proc-$(CONFIG_NET) += proc_net.o proc-$(CONFIG_PROC_KCORE) += kcore.o proc-$(CONFIG_PROC_VMCORE) += vmcore.o proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o diff --git a/fs/proc/array.c b/fs/proc/array.c index ee4814dd98f..27b59f5f3bd 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -370,6 +370,11 @@ static cputime_t task_stime(struct task_struct *p) } #endif +static cputime_t task_gtime(struct task_struct *p) +{ + return p->gtime; +} + static int do_task_stat(struct task_struct *task, char *buffer, int whole) { unsigned long vsize, eip, esp, wchan = ~0UL; @@ -385,6 +390,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) unsigned long cmin_flt = 0, cmaj_flt = 0; unsigned long min_flt = 0, maj_flt = 0; cputime_t cutime, cstime, utime, stime; + cputime_t cgtime, gtime; unsigned long rsslim = 0; char tcomm[sizeof(task->comm)]; unsigned long flags; @@ -403,6 +409,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) sigemptyset(&sigign); sigemptyset(&sigcatch); cutime = cstime = utime = stime = cputime_zero; + cgtime = gtime = cputime_zero; rcu_read_lock(); if (lock_task_sighand(task, &flags)) { @@ -420,6 +427,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) cmaj_flt = sig->cmaj_flt; cutime = sig->cutime; cstime = sig->cstime; + cgtime = sig->cgtime; rsslim = sig->rlim[RLIMIT_RSS].rlim_cur; /* add up live thread stats at the group level */ @@ -430,6 +438,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) maj_flt += t->maj_flt; utime = cputime_add(utime, task_utime(t)); stime = cputime_add(stime, task_stime(t)); + gtime = cputime_add(gtime, task_gtime(t)); t = next_thread(t); } while (t != task); @@ -437,6 +446,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) maj_flt += sig->maj_flt; utime = cputime_add(utime, sig->utime); stime = cputime_add(stime, sig->stime); + gtime += cputime_add(gtime, sig->gtime); } sid = signal_session(sig); @@ -454,6 +464,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) maj_flt = task->maj_flt; utime = task_utime(task); stime = task_stime(task); + gtime = task_gtime(task); } /* scale priority and nice values from timeslices to -20..20 */ @@ -471,7 +482,7 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) res = sprintf(buffer, "%d (%s) %c %d %d %d %d %d %u %lu \ %lu %lu %lu %lu %lu %ld %ld %ld %ld %d 0 %llu %lu %ld %lu %lu %lu %lu %lu \ -%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu\n", +%lu %lu %lu %lu %lu %lu %lu %lu %d %d %u %u %llu %lu %ld\n", task->pid, tcomm, state, @@ -516,7 +527,9 @@ static int do_task_stat(struct task_struct *task, char *buffer, int whole) task_cpu(task), task->rt_priority, task->policy, - (unsigned long long)delayacct_blkio_ticks(task)); + (unsigned long long)delayacct_blkio_ticks(task), + cputime_to_clock_t(gtime), + cputime_to_clock_t(cgtime)); if (mm) mmput(mm); return res; diff --git a/fs/proc/base.c b/fs/proc/base.c index 19489b0d555..e5d0953d4db 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -304,7 +304,7 @@ static int proc_pid_schedstat(struct task_struct *task, char *buffer) return sprintf(buffer, "%llu %llu %lu\n", task->sched_info.cpu_time, task->sched_info.run_delay, - task->sched_info.pcnt); + task->sched_info.pcount); } #endif diff --git a/fs/proc/internal.h b/fs/proc/internal.h index b215c3524fa..1820eb2ef76 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -16,6 +16,11 @@ extern int proc_sys_init(void); #else static inline void proc_sys_init(void) { } #endif +#ifdef CONFIG_NET +extern int proc_net_init(void); +#else +static inline int proc_net_init(void) { return 0; } +#endif struct vmalloc_info { unsigned long used; diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index c9d6d5f400a..0071939c009 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -442,6 +442,7 @@ static int show_stat(struct seq_file *p, void *v) int i; unsigned long jif; cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; + cputime64_t guest; u64 sum = 0; struct timespec boottime; unsigned int *per_irq_sum; @@ -452,6 +453,7 @@ static int show_stat(struct seq_file *p, void *v) user = nice = system = idle = iowait = irq = softirq = steal = cputime64_zero; + guest = cputime64_zero; getboottime(&boottime); jif = boottime.tv_sec; @@ -466,6 +468,7 @@ static int show_stat(struct seq_file *p, void *v) irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq); softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq); steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal); + guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest); for (j = 0; j < NR_IRQS; j++) { unsigned int temp = kstat_cpu(i).irqs[j]; sum += temp; @@ -473,7 +476,7 @@ static int show_stat(struct seq_file *p, void *v) } } - seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n", + seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu %llu\n", (unsigned long long)cputime64_to_clock_t(user), (unsigned long long)cputime64_to_clock_t(nice), (unsigned long long)cputime64_to_clock_t(system), @@ -481,7 +484,8 @@ static int show_stat(struct seq_file *p, void *v) (unsigned long long)cputime64_to_clock_t(iowait), (unsigned long long)cputime64_to_clock_t(irq), (unsigned long long)cputime64_to_clock_t(softirq), - (unsigned long long)cputime64_to_clock_t(steal)); + (unsigned long long)cputime64_to_clock_t(steal), + (unsigned long long)cputime64_to_clock_t(guest)); for_each_online_cpu(i) { /* Copy values here to work around gcc-2.95.3, gcc-2.96 */ @@ -493,7 +497,9 @@ static int show_stat(struct seq_file *p, void *v) irq = kstat_cpu(i).cpustat.irq; softirq = kstat_cpu(i).cpustat.softirq; steal = kstat_cpu(i).cpustat.steal; - seq_printf(p, "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu\n", + guest = kstat_cpu(i).cpustat.guest; + seq_printf(p, + "cpu%d %llu %llu %llu %llu %llu %llu %llu %llu %llu\n", i, (unsigned long long)cputime64_to_clock_t(user), (unsigned long long)cputime64_to_clock_t(nice), @@ -502,7 +508,8 @@ static int show_stat(struct seq_file *p, void *v) (unsigned long long)cputime64_to_clock_t(iowait), (unsigned long long)cputime64_to_clock_t(irq), (unsigned long long)cputime64_to_clock_t(softirq), - (unsigned long long)cputime64_to_clock_t(steal)); + (unsigned long long)cputime64_to_clock_t(steal), + (unsigned long long)cputime64_to_clock_t(guest)); } seq_printf(p, "intr %llu", (unsigned long long)sum); diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c new file mode 100644 index 00000000000..2e91fb756e9 --- /dev/null +++ b/fs/proc/proc_net.c @@ -0,0 +1,200 @@ +/* + * linux/fs/proc/net.c + * + * Copyright (C) 2007 + * + * Author: Eric Biederman <ebiederm@xmission.com> + * + * proc net directory handling functions + */ + +#include <asm/uaccess.h> + +#include <linux/errno.h> +#include <linux/time.h> +#include <linux/proc_fs.h> +#include <linux/stat.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/module.h> +#include <linux/bitops.h> +#include <linux/smp_lock.h> +#include <linux/mount.h> +#include <linux/nsproxy.h> +#include <net/net_namespace.h> + +#include "internal.h" + + +struct proc_dir_entry *proc_net_create(struct net *net, + const char *name, mode_t mode, get_info_t *get_info) +{ + return create_proc_info_entry(name,mode, net->proc_net, get_info); +} +EXPORT_SYMBOL_GPL(proc_net_create); + +struct proc_dir_entry *proc_net_fops_create(struct net *net, + const char *name, mode_t mode, const struct file_operations *fops) +{ + struct proc_dir_entry *res; + + res = create_proc_entry(name, mode, net->proc_net); + if (res) + res->proc_fops = fops; + return res; +} +EXPORT_SYMBOL_GPL(proc_net_fops_create); + +void proc_net_remove(struct net *net, const char *name) +{ + remove_proc_entry(name, net->proc_net); +} +EXPORT_SYMBOL_GPL(proc_net_remove); + +struct net *get_proc_net(const struct inode *inode) +{ + return maybe_get_net(PDE_NET(PDE(inode))); +} +EXPORT_SYMBOL_GPL(get_proc_net); + +static struct proc_dir_entry *proc_net_shadow; + +static struct dentry *proc_net_shadow_dentry(struct dentry *parent, + struct proc_dir_entry *de) +{ + struct dentry *shadow = NULL; + struct inode *inode; + if (!de) + goto out; + de_get(de); + inode = proc_get_inode(parent->d_inode->i_sb, de->low_ino, de); + if (!inode) + goto out_de_put; + shadow = d_alloc_name(parent, de->name); + if (!shadow) + goto out_iput; + shadow->d_op = parent->d_op; /* proc_dentry_operations */ + d_instantiate(shadow, inode); +out: + return shadow; +out_iput: + iput(inode); +out_de_put: + de_put(de); + goto out; +} + +static void *proc_net_follow_link(struct dentry *parent, struct nameidata *nd) +{ + struct net *net = current->nsproxy->net_ns; + struct dentry *shadow; + shadow = proc_net_shadow_dentry(parent, net->proc_net); + if (!shadow) + return ERR_PTR(-ENOENT); + + dput(nd->dentry); + /* My dentry count is 1 and that should be enough as the + * shadow dentry is thrown away immediately. + */ + nd->dentry = shadow; + return NULL; +} + +static struct dentry *proc_net_lookup(struct inode *dir, struct dentry *dentry, + struct nameidata *nd) +{ + struct net *net = current->nsproxy->net_ns; + struct dentry *shadow; + + shadow = proc_net_shadow_dentry(nd->dentry, net->proc_net); + if (!shadow) + return ERR_PTR(-ENOENT); + + dput(nd->dentry); + nd->dentry = shadow; + + return shadow->d_inode->i_op->lookup(shadow->d_inode, dentry, nd); +} + +static int proc_net_setattr(struct dentry *dentry, struct iattr *iattr) +{ + struct net *net = current->nsproxy->net_ns; + struct dentry *shadow; + int ret; + + shadow = proc_net_shadow_dentry(dentry->d_parent, net->proc_net); + if (!shadow) + return -ENOENT; + ret = shadow->d_inode->i_op->setattr(shadow, iattr); + dput(shadow); + return ret; +} + +static const struct file_operations proc_net_dir_operations = { + .read = generic_read_dir, +}; + +static struct inode_operations proc_net_dir_inode_operations = { + .follow_link = proc_net_follow_link, + .lookup = proc_net_lookup, + .setattr = proc_net_setattr, +}; + +static __net_init int proc_net_ns_init(struct net *net) +{ + struct proc_dir_entry *root, *netd, *net_statd; + int err; + + err = -ENOMEM; + root = kzalloc(sizeof(*root), GFP_KERNEL); + if (!root) + goto out; + + err = -EEXIST; + netd = proc_mkdir("net", root); + if (!netd) + goto free_root; + + err = -EEXIST; + net_statd = proc_mkdir("stat", netd); + if (!net_statd) + goto free_net; + + root->data = net; + netd->data = net; + net_statd->data = net; + + net->proc_net_root = root; + net->proc_net = netd; + net->proc_net_stat = net_statd; + err = 0; + +out: + return err; +free_net: + remove_proc_entry("net", root); +free_root: + kfree(root); + goto out; +} + +static __net_exit void proc_net_ns_exit(struct net *net) +{ + remove_proc_entry("stat", net->proc_net); + remove_proc_entry("net", net->proc_net_root); + kfree(net->proc_net_root); +} + +struct pernet_operations __net_initdata proc_net_ns_ops = { + .init = proc_net_ns_init, + .exit = proc_net_ns_exit, +}; + +int __init proc_net_init(void) +{ + proc_net_shadow = proc_mkdir("net", NULL); + proc_net_shadow->proc_iops = &proc_net_dir_inode_operations; + proc_net_shadow->proc_fops = &proc_net_dir_operations; + + return register_pernet_subsys(&proc_net_ns_ops); +} diff --git a/fs/proc/root.c b/fs/proc/root.c index 41f17037f73..cf3046638b0 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -21,7 +21,7 @@ #include "internal.h" -struct proc_dir_entry *proc_net, *proc_net_stat, *proc_bus, *proc_root_fs, *proc_root_driver; +struct proc_dir_entry *proc_bus, *proc_root_fs, *proc_root_driver; static int proc_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, struct vfsmount *mnt) @@ -61,8 +61,8 @@ void __init proc_root_init(void) return; } proc_misc_init(); - proc_net = proc_mkdir("net", NULL); - proc_net_stat = proc_mkdir("net/stat", NULL); + + proc_net_init(); #ifdef CONFIG_SYSVIPC proc_mkdir("sysvipc", NULL); @@ -159,7 +159,5 @@ EXPORT_SYMBOL(create_proc_entry); EXPORT_SYMBOL(remove_proc_entry); EXPORT_SYMBOL(proc_root); EXPORT_SYMBOL(proc_root_fs); -EXPORT_SYMBOL(proc_net); -EXPORT_SYMBOL(proc_net_stat); EXPORT_SYMBOL(proc_bus); EXPORT_SYMBOL(proc_root_driver); |