diff options
Diffstat (limited to 'fs/proc')
-rw-r--r-- | fs/proc/Makefile | 3 | ||||
-rw-r--r-- | fs/proc/array.c | 18 | ||||
-rw-r--r-- | fs/proc/base.c | 172 | ||||
-rw-r--r-- | fs/proc/generic.c | 10 | ||||
-rw-r--r-- | fs/proc/inode.c | 6 | ||||
-rw-r--r-- | fs/proc/kcore.c | 16 | ||||
-rw-r--r-- | fs/proc/nommu.c | 4 | ||||
-rw-r--r-- | fs/proc/proc_misc.c | 13 | ||||
-rw-r--r-- | fs/proc/root.c | 1 | ||||
-rw-r--r-- | fs/proc/task_mmu.c | 8 | ||||
-rw-r--r-- | fs/proc/task_nommu.c | 4 |
11 files changed, 174 insertions, 81 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile index 7431d7ba2d09..f6c776272572 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile @@ -8,8 +8,9 @@ proc-y := nommu.o task_nommu.o proc-$(CONFIG_MMU) := mmu.o task_mmu.o proc-y += inode.o root.o base.o generic.o array.o \ - kmsg.o proc_tty.o proc_misc.o + proc_tty.o proc_misc.o proc-$(CONFIG_PROC_KCORE) += kcore.o proc-$(CONFIG_PROC_VMCORE) += vmcore.o proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o +proc-$(CONFIG_PRINTK) += kmsg.o diff --git a/fs/proc/array.c b/fs/proc/array.c index 25e917fb4739..70e4fab117b1 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -346,20 +346,13 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole) sigemptyset(&sigcatch); cutime = cstime = utime = stime = cputime_zero; - mutex_lock(&tty_mutex); rcu_read_lock(); if (lock_task_sighand(task, &flags)) { struct signal_struct *sig = task->signal; - struct tty_struct *tty = sig->tty; - - if (tty) { - /* - * sig->tty is not stable, but tty_mutex - * protects us from release_dev(tty) - */ - barrier(); - tty_pgrp = tty->pgrp; - tty_nr = new_encode_dev(tty_devnum(tty)); + + if (sig->tty) { + tty_pgrp = sig->tty->pgrp; + tty_nr = new_encode_dev(tty_devnum(sig->tty)); } num_threads = atomic_read(&sig->count); @@ -388,14 +381,13 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole) stime = cputime_add(stime, sig->stime); } - sid = sig->session; + sid = signal_session(sig); pgid = process_group(task); ppid = rcu_dereference(task->real_parent)->tgid; unlock_task_sighand(task, &flags); } rcu_read_unlock(); - mutex_unlock(&tty_mutex); if (!whole || num_threads<2) wchan = get_wchan(task); diff --git a/fs/proc/base.c b/fs/proc/base.c index 795319c54f72..77a57b5799c4 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -59,7 +59,7 @@ #include <linux/string.h> #include <linux/seq_file.h> #include <linux/namei.h> -#include <linux/namespace.h> +#include <linux/mnt_namespace.h> #include <linux/mm.h> #include <linux/smp_lock.h> #include <linux/rcupdate.h> @@ -365,33 +365,33 @@ struct proc_mounts { static int mounts_open(struct inode *inode, struct file *file) { struct task_struct *task = get_proc_task(inode); - struct namespace *namespace = NULL; + struct mnt_namespace *ns = NULL; struct proc_mounts *p; int ret = -EINVAL; if (task) { task_lock(task); - namespace = task->nsproxy->namespace; - if (namespace) - get_namespace(namespace); + ns = task->nsproxy->mnt_ns; + if (ns) + get_mnt_ns(ns); task_unlock(task); put_task_struct(task); } - if (namespace) { + if (ns) { ret = -ENOMEM; p = kmalloc(sizeof(struct proc_mounts), GFP_KERNEL); if (p) { file->private_data = &p->m; ret = seq_open(file, &mounts_op); if (!ret) { - p->m.private = namespace; - p->event = namespace->event; + p->m.private = ns; + p->event = ns->event; return 0; } kfree(p); } - put_namespace(namespace); + put_mnt_ns(ns); } return ret; } @@ -399,15 +399,15 @@ static int mounts_open(struct inode *inode, struct file *file) static int mounts_release(struct inode *inode, struct file *file) { struct seq_file *m = file->private_data; - struct namespace *namespace = m->private; - put_namespace(namespace); + struct mnt_namespace *ns = m->private; + put_mnt_ns(ns); return seq_release(inode, file); } static unsigned mounts_poll(struct file *file, poll_table *wait) { struct proc_mounts *p = file->private_data; - struct namespace *ns = p->m.private; + struct mnt_namespace *ns = p->m.private; unsigned res = 0; poll_wait(file, &ns->poll, wait); @@ -437,21 +437,21 @@ static int mountstats_open(struct inode *inode, struct file *file) if (!ret) { struct seq_file *m = file->private_data; - struct namespace *namespace = NULL; + struct mnt_namespace *mnt_ns = NULL; struct task_struct *task = get_proc_task(inode); if (task) { task_lock(task); if (task->nsproxy) - namespace = task->nsproxy->namespace; - if (namespace) - get_namespace(namespace); + mnt_ns = task->nsproxy->mnt_ns; + if (mnt_ns) + get_mnt_ns(mnt_ns); task_unlock(task); put_task_struct(task); } - if (namespace) - m->private = namespace; + if (mnt_ns) + m->private = mnt_ns; else { seq_release(inode, file); ret = -EINVAL; @@ -472,7 +472,7 @@ static struct file_operations proc_mountstats_operations = { static ssize_t proc_info_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; unsigned long page; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -512,7 +512,7 @@ static int mem_open(struct inode* inode, struct file* file) static ssize_t mem_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); char *page; unsigned long src = *ppos; int ret = -ESRCH; @@ -584,7 +584,7 @@ static ssize_t mem_write(struct file * file, const char * buf, { int copied; char *page; - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); unsigned long dst = *ppos; copied = -ESRCH; @@ -654,7 +654,7 @@ static struct file_operations proc_mem_operations = { static ssize_t oom_adjust_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { - struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); char buffer[PROC_NUMBUF]; size_t len; int oom_adjust; @@ -683,8 +683,6 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf, char buffer[PROC_NUMBUF], *end; int oom_adjust; - if (!capable(CAP_SYS_RESOURCE)) - return -EPERM; memset(buffer, 0, sizeof(buffer)); if (count > sizeof(buffer) - 1) count = sizeof(buffer) - 1; @@ -696,9 +694,13 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf, return -EINVAL; if (*end == '\n') end++; - task = get_proc_task(file->f_dentry->d_inode); + task = get_proc_task(file->f_path.dentry->d_inode); if (!task) return -ESRCH; + if (oom_adjust < task->oomkilladj && !capable(CAP_SYS_RESOURCE)) { + put_task_struct(task); + return -EACCES; + } task->oomkilladj = oom_adjust; put_task_struct(task); if (end - buffer == 0) @@ -716,7 +718,7 @@ static struct file_operations proc_oom_adjust_operations = { static ssize_t proc_loginuid_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; struct task_struct *task = get_proc_task(inode); ssize_t length; char tmpbuf[TMPBUFLEN]; @@ -732,7 +734,7 @@ static ssize_t proc_loginuid_read(struct file * file, char __user * buf, static ssize_t proc_loginuid_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; char *page, *tmp; ssize_t length; uid_t loginuid; @@ -851,6 +853,65 @@ static struct file_operations proc_seccomp_operations = { }; #endif /* CONFIG_SECCOMP */ +#ifdef CONFIG_FAULT_INJECTION +static ssize_t proc_fault_inject_read(struct file * file, char __user * buf, + size_t count, loff_t *ppos) +{ + struct task_struct *task = get_proc_task(file->f_dentry->d_inode); + char buffer[PROC_NUMBUF]; + size_t len; + int make_it_fail; + loff_t __ppos = *ppos; + + if (!task) + return -ESRCH; + make_it_fail = task->make_it_fail; + put_task_struct(task); + + len = snprintf(buffer, sizeof(buffer), "%i\n", make_it_fail); + if (__ppos >= len) + return 0; + if (count > len-__ppos) + count = len-__ppos; + if (copy_to_user(buf, buffer + __ppos, count)) + return -EFAULT; + *ppos = __ppos + count; + return count; +} + +static ssize_t proc_fault_inject_write(struct file * file, + const char __user * buf, size_t count, loff_t *ppos) +{ + struct task_struct *task; + char buffer[PROC_NUMBUF], *end; + int make_it_fail; + + if (!capable(CAP_SYS_RESOURCE)) + return -EPERM; + memset(buffer, 0, sizeof(buffer)); + if (count > sizeof(buffer) - 1) + count = sizeof(buffer) - 1; + if (copy_from_user(buffer, buf, count)) + return -EFAULT; + make_it_fail = simple_strtol(buffer, &end, 0); + if (*end == '\n') + end++; + task = get_proc_task(file->f_dentry->d_inode); + if (!task) + return -ESRCH; + task->make_it_fail = make_it_fail; + put_task_struct(task); + if (end - buffer == 0) + return -EIO; + return end - buffer; +} + +static struct file_operations proc_fault_inject_operations = { + .read = proc_fault_inject_read, + .write = proc_fault_inject_write, +}; +#endif + static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) { struct inode *inode = dentry->d_inode; @@ -1076,7 +1137,7 @@ static int proc_fill_cache(struct file *filp, void *dirent, filldir_t filldir, char *name, int len, instantiate_t instantiate, struct task_struct *task, void *ptr) { - struct dentry *child, *dir = filp->f_dentry; + struct dentry *child, *dir = filp->f_path.dentry; struct inode *inode; struct qstr qname; ino_t ino = 0; @@ -1155,8 +1216,8 @@ static int proc_fd_link(struct inode *inode, struct dentry **dentry, struct vfsm spin_lock(&files->file_lock); file = fcheck_files(files, fd); if (file) { - *mnt = mntget(file->f_vfsmnt); - *dentry = dget(file->f_dentry); + *mnt = mntget(file->f_path.mnt); + *dentry = dget(file->f_path.dentry); spin_unlock(&files->file_lock); put_files_struct(files); return 0; @@ -1291,7 +1352,7 @@ static int proc_fd_fill_cache(struct file *filp, void *dirent, filldir_t filldir static int proc_readfd(struct file * filp, void * dirent, filldir_t filldir) { - struct dentry *dentry = filp->f_dentry; + struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; struct task_struct *p = get_proc_task(inode); unsigned int fd, tid, ino; @@ -1438,7 +1499,7 @@ static int proc_pident_readdir(struct file *filp, { int i; int pid; - struct dentry *dentry = filp->f_dentry; + struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; struct task_struct *task = get_proc_task(inode); struct pid_entry *p, *last; @@ -1494,7 +1555,7 @@ out_no_task: static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; unsigned long page; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -1510,7 +1571,7 @@ static ssize_t proc_pid_attr_read(struct file * file, char __user * buf, goto out; length = security_getprocattr(task, - (char*)file->f_dentry->d_name.name, + (char*)file->f_path.dentry->d_name.name, (void*)page, count); if (length >= 0) length = simple_read_from_buffer(buf, count, ppos, (char *)page, length); @@ -1524,7 +1585,7 @@ out_no_task: static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, size_t count, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; char *page; ssize_t length; struct task_struct *task = get_proc_task(inode); @@ -1550,7 +1611,7 @@ static ssize_t proc_pid_attr_write(struct file * file, const char __user * buf, goto out_free; length = security_setprocattr(task, - (char*)file->f_dentry->d_name.name, + (char*)file->f_path.dentry->d_name.name, (void*)page, count); out_free: free_page((unsigned long) page); @@ -1743,6 +1804,27 @@ static int proc_base_fill_cache(struct file *filp, void *dirent, filldir_t filld proc_base_instantiate, task, p); } +#ifdef CONFIG_TASK_IO_ACCOUNTING +static int proc_pid_io_accounting(struct task_struct *task, char *buffer) +{ + return sprintf(buffer, + "rchar: %llu\n" + "wchar: %llu\n" + "syscr: %llu\n" + "syscw: %llu\n" + "read_bytes: %llu\n" + "write_bytes: %llu\n" + "cancelled_write_bytes: %llu\n", + (unsigned long long)task->rchar, + (unsigned long long)task->wchar, + (unsigned long long)task->syscr, + (unsigned long long)task->syscw, + (unsigned long long)task->ioac.read_bytes, + (unsigned long long)task->ioac.write_bytes, + (unsigned long long)task->ioac.cancelled_write_bytes); +} +#endif + /* * Thread groups */ @@ -1791,6 +1873,12 @@ static struct pid_entry tgid_base_stuff[] = { #ifdef CONFIG_AUDITSYSCALL REG("loginuid", S_IWUSR|S_IRUGO, loginuid), #endif +#ifdef CONFIG_FAULT_INJECTION + REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject), +#endif +#ifdef CONFIG_TASK_IO_ACCOUNTING + INF("io", S_IRUGO, pid_io_accounting), +#endif }; static int proc_tgid_base_readdir(struct file * filp, @@ -1883,8 +1971,9 @@ out: return; } -struct dentry *proc_pid_instantiate(struct inode *dir, - struct dentry * dentry, struct task_struct *task, void *ptr) +static struct dentry *proc_pid_instantiate(struct inode *dir, + struct dentry * dentry, + struct task_struct *task, void *ptr) { struct dentry *error = ERR_PTR(-ENOENT); struct inode *inode; @@ -1991,7 +2080,7 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir) { unsigned int nr = filp->f_pos - FIRST_PROCESS_ENTRY; - struct task_struct *reaper = get_proc_task(filp->f_dentry->d_inode); + struct task_struct *reaper = get_proc_task(filp->f_path.dentry->d_inode); struct task_struct *task; int tgid; @@ -2065,6 +2154,9 @@ static struct pid_entry tid_base_stuff[] = { #ifdef CONFIG_AUDITSYSCALL REG("loginuid", S_IWUSR|S_IRUGO, loginuid), #endif +#ifdef CONFIG_FAULT_INJECTION + REG("make-it-fail", S_IRUGO|S_IWUSR, fault_inject), +#endif }; static int proc_tid_base_readdir(struct file * filp, @@ -2232,7 +2324,7 @@ static int proc_task_fill_cache(struct file *filp, void *dirent, filldir_t filld /* for the /proc/TGID/task/ directories */ static int proc_task_readdir(struct file * filp, void * dirent, filldir_t filldir) { - struct dentry *dentry = filp->f_dentry; + struct dentry *dentry = filp->f_path.dentry; struct inode *inode = dentry->d_inode; struct task_struct *leader = get_proc_task(inode); struct task_struct *task; diff --git a/fs/proc/generic.c b/fs/proc/generic.c index 4ba03009cf72..853cb877d5f3 100644 --- a/fs/proc/generic.c +++ b/fs/proc/generic.c @@ -52,7 +52,7 @@ static ssize_t proc_file_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos) { - struct inode * inode = file->f_dentry->d_inode; + struct inode * inode = file->f_path.dentry->d_inode; char *page; ssize_t retval=0; int eof=0; @@ -203,7 +203,7 @@ static ssize_t proc_file_write(struct file *file, const char __user *buffer, size_t count, loff_t *ppos) { - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file->f_path.dentry->d_inode; struct proc_dir_entry * dp; dp = PDE(inode); @@ -432,7 +432,7 @@ int proc_readdir(struct file * filp, struct proc_dir_entry * de; unsigned int ino; int i; - struct inode *inode = filp->f_dentry->d_inode; + struct inode *inode = filp->f_path.dentry->d_inode; int ret = 0; lock_kernel(); @@ -453,7 +453,7 @@ int proc_readdir(struct file * filp, /* fall through */ case 1: if (filldir(dirent, "..", 2, i, - parent_ino(filp->f_dentry), + parent_ino(filp->f_path.dentry), DT_DIR) < 0) goto out; i++; @@ -558,7 +558,7 @@ static void proc_kill_inodes(struct proc_dir_entry *de) file_list_lock(); list_for_each(p, &sb->s_files) { struct file * filp = list_entry(p, struct file, f_u.fu_list); - struct dentry * dentry = filp->f_dentry; + struct dentry * dentry = filp->f_path.dentry; struct inode * inode; const struct file_operations *fops; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 49dfb2ab783e..e26945ba685b 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -81,14 +81,14 @@ static void proc_read_inode(struct inode * inode) inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME; } -static kmem_cache_t * proc_inode_cachep; +static struct kmem_cache * proc_inode_cachep; static struct inode *proc_alloc_inode(struct super_block *sb) { struct proc_inode *ei; struct inode *inode; - ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, SLAB_KERNEL); + ei = (struct proc_inode *)kmem_cache_alloc(proc_inode_cachep, GFP_KERNEL); if (!ei) return NULL; ei->pid = NULL; @@ -105,7 +105,7 @@ static void proc_destroy_inode(struct inode *inode) kmem_cache_free(proc_inode_cachep, PROC_I(inode)); } -static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags) +static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags) { struct proc_inode *ei = (struct proc_inode *) foo; diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c index 1294eda4acae..1be73082edd3 100644 --- a/fs/proc/kcore.c +++ b/fs/proc/kcore.c @@ -22,6 +22,7 @@ #include <asm/uaccess.h> #include <asm/io.h> +#define CORE_STR "CORE" static int open_kcore(struct inode * inode, struct file * filp) { @@ -82,10 +83,11 @@ static size_t get_kcore_size(int *nphdr, size_t *elf_buflen) } *elf_buflen = sizeof(struct elfhdr) + (*nphdr + 2)*sizeof(struct elf_phdr) + - 3 * (sizeof(struct elf_note) + 4) + - sizeof(struct elf_prstatus) + - sizeof(struct elf_prpsinfo) + - sizeof(struct task_struct); + 3 * ((sizeof(struct elf_note)) + + roundup(sizeof(CORE_STR), 4)) + + roundup(sizeof(struct elf_prstatus), 4) + + roundup(sizeof(struct elf_prpsinfo), 4) + + roundup(sizeof(struct task_struct), 4); *elf_buflen = PAGE_ALIGN(*elf_buflen); return size + *elf_buflen; } @@ -210,7 +212,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff) nhdr->p_offset = offset; /* set up the process status */ - notes[0].name = "CORE"; + notes[0].name = CORE_STR; notes[0].type = NT_PRSTATUS; notes[0].datasz = sizeof(struct elf_prstatus); notes[0].data = &prstatus; @@ -221,7 +223,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff) bufp = storenote(¬es[0], bufp); /* set up the process info */ - notes[1].name = "CORE"; + notes[1].name = CORE_STR; notes[1].type = NT_PRPSINFO; notes[1].datasz = sizeof(struct elf_prpsinfo); notes[1].data = &prpsinfo; @@ -238,7 +240,7 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff) bufp = storenote(¬es[1], bufp); /* set up the task structure */ - notes[2].name = "CORE"; + notes[2].name = CORE_STR; notes[2].type = NT_TASKSTRUCT; notes[2].datasz = sizeof(struct task_struct); notes[2].data = current; diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c index d7dbdf9e0f49..5ec67257e5f9 100644 --- a/fs/proc/nommu.c +++ b/fs/proc/nommu.c @@ -46,7 +46,7 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma) file = vma->vm_file; if (file) { - struct inode *inode = vma->vm_file->f_dentry->d_inode; + struct inode *inode = vma->vm_file->f_path.dentry->d_inode; dev = inode->i_sb->s_dev; ino = inode->i_ino; } @@ -67,7 +67,7 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma) if (len < 1) len = 1; seq_printf(m, "%*c", len, ' '); - seq_path(m, file->f_vfsmnt, file->f_dentry, ""); + seq_path(m, file->f_path.mnt, file->f_path.dentry, ""); } seq_putc(m, '\n'); diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 93c43b676e59..b37ce33f67ea 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -39,13 +39,14 @@ #include <linux/seq_file.h> #include <linux/times.h> #include <linux/profile.h> +#include <linux/utsname.h> #include <linux/blkdev.h> #include <linux/hugetlb.h> #include <linux/jiffies.h> #include <linux/sysrq.h> #include <linux/vmalloc.h> #include <linux/crash_dump.h> -#include <linux/pspace.h> +#include <linux/pid_namespace.h> #include <asm/uaccess.h> #include <asm/pgtable.h> #include <asm/io.h> @@ -92,7 +93,7 @@ static int loadavg_read_proc(char *page, char **start, off_t off, LOAD_INT(a), LOAD_FRAC(a), LOAD_INT(b), LOAD_FRAC(b), LOAD_INT(c), LOAD_FRAC(c), - nr_running(), nr_threads, init_pspace.last_pid); + nr_running(), nr_threads, current->nsproxy->pid_ns->last_pid); return proc_calc_metrics(page, start, off, count, eof, len); } @@ -252,8 +253,10 @@ static int version_read_proc(char *page, char **start, off_t off, { int len; - strcpy(page, linux_banner); - len = strlen(page); + len = snprintf(page, PAGE_SIZE, linux_proc_banner, + utsname()->sysname, + utsname()->release, + utsname()->version); return proc_calc_metrics(page, start, off, count, eof, len); } @@ -696,9 +699,11 @@ void __init proc_misc_init(void) proc_symlink("mounts", NULL, "self/mounts"); /* And now for trickier ones */ +#ifdef CONFIG_PRINTK entry = create_proc_entry("kmsg", S_IRUSR, &proc_root); if (entry) entry->proc_fops = &proc_kmsg_operations; +#endif create_seq_entry("devices", 0, &proc_devinfo_operations); create_seq_entry("cpuinfo", 0, &proc_cpuinfo_operations); #ifdef CONFIG_BLOCK diff --git a/fs/proc/root.c b/fs/proc/root.c index ffe66c38488b..64d242b6dcfa 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -13,6 +13,7 @@ #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> diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 6b769afac55a..55ade0d15621 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -94,8 +94,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount * } if (vma) { - *mnt = mntget(vma->vm_file->f_vfsmnt); - *dentry = dget(vma->vm_file->f_dentry); + *mnt = mntget(vma->vm_file->f_path.mnt); + *dentry = dget(vma->vm_file->f_path.dentry); result = 0; } @@ -135,7 +135,7 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats int len; if (file) { - struct inode *inode = vma->vm_file->f_dentry->d_inode; + struct inode *inode = vma->vm_file->f_path.dentry->d_inode; dev = inode->i_sb->s_dev; ino = inode->i_ino; } @@ -156,7 +156,7 @@ static int show_map_internal(struct seq_file *m, void *v, struct mem_size_stats */ if (file) { pad_len_spaces(m, len); - seq_path(m, file->f_vfsmnt, file->f_dentry, "\n"); + seq_path(m, file->f_path.mnt, file->f_path.dentry, "\n"); } else { const char *name = arch_vma_name(vma); if (!name) { diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 091aa8e48e02..fcc5caf93f55 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -126,8 +126,8 @@ int proc_exe_link(struct inode *inode, struct dentry **dentry, struct vfsmount * } if (vma) { - *mnt = mntget(vma->vm_file->f_vfsmnt); - *dentry = dget(vma->vm_file->f_dentry); + *mnt = mntget(vma->vm_file->f_path.mnt); + *dentry = dget(vma->vm_file->f_path.dentry); result = 0; } |