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autofs4: coding style fixes 

Try and make the coding style completely consistent throughtout the
autofs module and inline with kernel coding style recommendations.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Ian Kent 2016-03-15 14:58:25 -07:00 committed by Linus Torvalds
parent c83aa55d0b
commit e9a7c2f1a5
12 changed files with 190 additions and 188 deletions
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55
fs/autofs4/autofs_i.h
View File

@ -1,15 +1,11 @@
/* -*- c -*- ------------------------------------------------------------- *
*
* linux/fs/autofs/autofs_i.h
*
* Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
/*
* Copyright 1997-1998 Transmeta Corporation - All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
*/
/* Internal header file for autofs */
@ -35,7 +31,7 @@
#include <linux/mount.h>
#include <linux/namei.h>
#include <asm/current.h>
#include <asm/uaccess.h>
#include <linux/uaccess.h>
/* #define DEBUG */
@ -51,12 +47,14 @@
printk(KERN_ERR "pid %d: %s: " fmt "\n", \
current->pid, __func__, ##__VA_ARGS__)
/* Unified info structure. This is pointed to by both the dentry and
inode structures. Each file in the filesystem has an instance of this
structure. It holds a reference to the dentry, so dentries are never
flushed while the file exists. All name lookups are dealt with at the
dentry level, although the filesystem can interfere in the validation
process. Readdir is implemented by traversing the dentry lists. */
/*
* Unified info structure. This is pointed to by both the dentry and
* inode structures. Each file in the filesystem has an instance of this
* structure. It holds a reference to the dentry, so dentries are never
* flushed while the file exists. All name lookups are dealt with at the
* dentry level, although the filesystem can interfere in the validation
* process. Readdir is implemented by traversing the dentry lists.
*/
struct autofs_info {
struct dentry *dentry;
struct inode *inode;
@ -78,7 +76,7 @@ struct autofs_info {
kgid_t gid;
};
#define AUTOFS_INF_EXPIRING (1<<0) /* dentry is in the process of expiring */
#define AUTOFS_INF_EXPIRING (1<<0) /* dentry in the process of expiring */
#define AUTOFS_INF_NO_RCU (1<<1) /* the dentry is being considered
* for expiry, so RCU_walk is
* not permitted
@ -140,10 +138,11 @@ static inline struct autofs_info *autofs4_dentry_ino(struct dentry *dentry)
}
/* autofs4_oz_mode(): do we see the man behind the curtain? (The
processes which do manipulations for us in user space sees the raw
filesystem without "magic".) */
static inline int autofs4_oz_mode(struct autofs_sb_info *sbi) {
* processes which do manipulations for us in user space sees the raw
* filesystem without "magic".)
*/
static inline int autofs4_oz_mode(struct autofs_sb_info *sbi)
{
return sbi->catatonic || task_pgrp(current) == sbi->oz_pgrp;
}
@ -154,12 +153,12 @@ void autofs4_free_ino(struct autofs_info *);
int is_autofs4_dentry(struct dentry *);
int autofs4_expire_wait(struct dentry *dentry, int rcu_walk);
int autofs4_expire_run(struct super_block *, struct vfsmount *,
struct autofs_sb_info *,
struct autofs_packet_expire __user *);
struct autofs_sb_info *,
struct autofs_packet_expire __user *);
int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_sb_info *sbi, int when);
int autofs4_expire_multi(struct super_block *, struct vfsmount *,
struct autofs_sb_info *, int __user *);
struct autofs_sb_info *, int __user *);
struct dentry *autofs4_expire_direct(struct super_block *sb,
struct vfsmount *mnt,
struct autofs_sb_info *sbi, int how);
@ -224,8 +223,8 @@ static inline int autofs_prepare_pipe(struct file *pipe)
/* Queue management functions */
int autofs4_wait(struct autofs_sb_info *,struct dentry *, enum autofs_notify);
int autofs4_wait_release(struct autofs_sb_info *,autofs_wqt_t,int);
int autofs4_wait(struct autofs_sb_info *, struct dentry *, enum autofs_notify);
int autofs4_wait_release(struct autofs_sb_info *, autofs_wqt_t, int);
void autofs4_catatonic_mode(struct autofs_sb_info *);
static inline u32 autofs4_get_dev(struct autofs_sb_info *sbi)
@ -242,37 +241,37 @@ static inline void __autofs4_add_expiring(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
if (ino) {
if (list_empty(&ino->expiring))
list_add(&ino->expiring, &sbi->expiring_list);
}
return;
}
static inline void autofs4_add_expiring(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (list_empty(&ino->expiring))
list_add(&ino->expiring, &sbi->expiring_list);
spin_unlock(&sbi->lookup_lock);
}
return;
}
static inline void autofs4_del_expiring(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (!list_empty(&ino->expiring))
list_del_init(&ino->expiring);
spin_unlock(&sbi->lookup_lock);
}
return;
}
extern void autofs4_kill_sb(struct super_block *);

28
fs/autofs4/dev-ioctl.c
View File

@ -72,8 +72,8 @@ static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)
{
int err = 0;
if ((AUTOFS_DEV_IOCTL_VERSION_MAJOR != param->ver_major) ||
(AUTOFS_DEV_IOCTL_VERSION_MINOR < param->ver_minor)) {
if ((param->ver_major != AUTOFS_DEV_IOCTL_VERSION_MAJOR) ||
(param->ver_minor > AUTOFS_DEV_IOCTL_VERSION_MINOR)) {
AUTOFS_WARN("ioctl control interface version mismatch: "
"kernel(%u.%u), user(%u.%u), cmd(%d)",
AUTOFS_DEV_IOCTL_VERSION_MAJOR,
@ -93,7 +93,8 @@ static int check_dev_ioctl_version(int cmd, struct autofs_dev_ioctl *param)
* Copy parameter control struct, including a possible path allocated
* at the end of the struct.
*/
static struct autofs_dev_ioctl *copy_dev_ioctl(struct autofs_dev_ioctl __user *in)
static struct autofs_dev_ioctl *
copy_dev_ioctl(struct autofs_dev_ioctl __user *in)
{
struct autofs_dev_ioctl tmp, *res;
@ -116,7 +117,6 @@ static struct autofs_dev_ioctl *copy_dev_ioctl(struct autofs_dev_ioctl __user *i
static inline void free_dev_ioctl(struct autofs_dev_ioctl *param)
{
kfree(param);
return;
}
/*
@ -197,7 +197,9 @@ static int find_autofs_mount(const char *pathname,
void *data)
{
struct path path;
int err = kern_path_mountpoint(AT_FDCWD, pathname, &path, 0);
int err;
err = kern_path_mountpoint(AT_FDCWD, pathname, &path, 0);
if (err)
return err;
err = -ENOENT;
@ -225,6 +227,7 @@ static int test_by_dev(struct path *path, void *p)
static int test_by_type(struct path *path, void *p)
{
struct autofs_info *ino = autofs4_dentry_ino(path->dentry);
return ino && ino->sbi->type & *(unsigned *)p;
}
@ -456,8 +459,10 @@ static int autofs_dev_ioctl_requester(struct file *fp,
err = 0;
autofs4_expire_wait(path.dentry, 0);
spin_lock(&sbi->fs_lock);
param->requester.uid = from_kuid_munged(current_user_ns(), ino->uid);
param->requester.gid = from_kgid_munged(current_user_ns(), ino->gid);
param->requester.uid =
from_kuid_munged(current_user_ns(), ino->uid);
param->requester.gid =
from_kgid_munged(current_user_ns(), ino->gid);
spin_unlock(&sbi->fs_lock);
}
path_put(&path);
@ -619,7 +624,8 @@ static ioctl_fn lookup_dev_ioctl(unsigned int cmd)
}
/* ioctl dispatcher */
static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __user *user)
static int _autofs_dev_ioctl(unsigned int command,
struct autofs_dev_ioctl __user *user)
{
struct autofs_dev_ioctl *param;
struct file *fp;
@ -711,6 +717,7 @@ out:
static long autofs_dev_ioctl(struct file *file, uint command, ulong u)
{
int err;
err = _autofs_dev_ioctl(command, (struct autofs_dev_ioctl __user *) u);
return (long) err;
}
@ -733,8 +740,8 @@ static const struct file_operations _dev_ioctl_fops = {
static struct miscdevice _autofs_dev_ioctl_misc = {
.minor = AUTOFS_MINOR,
.name = AUTOFS_DEVICE_NAME,
.fops = &_dev_ioctl_fops
.name = AUTOFS_DEVICE_NAME,
.fops = &_dev_ioctl_fops
};
MODULE_ALIAS_MISCDEV(AUTOFS_MINOR);
@ -757,6 +764,5 @@ int __init autofs_dev_ioctl_init(void)
void autofs_dev_ioctl_exit(void)
{
misc_deregister(&_autofs_dev_ioctl_misc);
return;
}

60
fs/autofs4/expire.c
View File

@ -1,16 +1,12 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/expire.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include "autofs_i.h"
@ -18,7 +14,7 @@ static unsigned long now;
/* Check if a dentry can be expired */
static inline int autofs4_can_expire(struct dentry *dentry,
unsigned long timeout, int do_now)
unsigned long timeout, int do_now)
{
struct autofs_info *ino = autofs4_dentry_ino(dentry);
@ -58,7 +54,9 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry)
/* Update the expiry counter if fs is busy */
if (!may_umount_tree(path.mnt)) {
struct autofs_info *ino = autofs4_dentry_ino(top);
struct autofs_info *ino;
ino = autofs4_dentry_ino(top);
ino->last_used = jiffies;
goto done;
}
@ -74,7 +72,7 @@ done:
* Calculate and dget next entry in the subdirs list under root.
*/
static struct dentry *get_next_positive_subdir(struct dentry *prev,
struct dentry *root)
struct dentry *root)
{
struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
struct list_head *next;
@ -121,7 +119,7 @@ cont:
* Calculate and dget next entry in top down tree traversal.
*/
static struct dentry *get_next_positive_dentry(struct dentry *prev,
struct dentry *root)
struct dentry *root)
{
struct autofs_sb_info *sbi = autofs4_sbi(root->d_sb);
struct list_head *next;
@ -187,15 +185,17 @@ again:
* autofs submounts.
*/
static int autofs4_direct_busy(struct vfsmount *mnt,
struct dentry *top,
unsigned long timeout,
int do_now)
struct dentry *top,
unsigned long timeout,
int do_now)
{
DPRINTK("top %p %pd", top, top);
/* If it's busy update the expiry counters */
if (!may_umount_tree(mnt)) {
struct autofs_info *ino = autofs4_dentry_ino(top);
struct autofs_info *ino;
ino = autofs4_dentry_ino(top);
if (ino)
ino->last_used = jiffies;
return 1;
@ -208,7 +208,8 @@ static int autofs4_direct_busy(struct vfsmount *mnt,
return 0;
}
/* Check a directory tree of mount points for busyness
/*
* Check a directory tree of mount points for busyness
* The tree is not busy iff no mountpoints are busy
*/
static int autofs4_tree_busy(struct vfsmount *mnt,
@ -404,6 +405,7 @@ static struct dentry *should_expire(struct dentry *dentry,
} else {
/* Path walk currently on this dentry? */
struct dentry *expired;
ino_count = atomic_read(&ino->count) + 1;
if (d_count(dentry) > ino_count)
return NULL;
@ -522,21 +524,22 @@ int autofs4_expire_wait(struct dentry *dentry, int rcu_walk)
/* Perform an expiry operation */
int autofs4_expire_run(struct super_block *sb,
struct vfsmount *mnt,
struct autofs_sb_info *sbi,
struct autofs_packet_expire __user *pkt_p)
struct vfsmount *mnt,
struct autofs_sb_info *sbi,
struct autofs_packet_expire __user *pkt_p)
{
struct autofs_packet_expire pkt;
struct autofs_info *ino;
struct dentry *dentry;
int ret = 0;
memset(&pkt,0,sizeof pkt);
memset(&pkt, 0, sizeof(pkt));
pkt.hdr.proto_version = sbi->version;
pkt.hdr.type = autofs_ptype_expire;
if ((dentry = autofs4_expire_indirect(sb, mnt, sbi, 0)) == NULL)
dentry = autofs4_expire_indirect(sb, mnt, sbi, 0);
if (!dentry)
return -EAGAIN;
pkt.len = dentry->d_name.len;
@ -544,7 +547,7 @@ int autofs4_expire_run(struct super_block *sb,
pkt.name[pkt.len] = '\0';
dput(dentry);
if ( copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)) )
if (copy_to_user(pkt_p, &pkt, sizeof(struct autofs_packet_expire)))
ret = -EFAULT;
spin_lock(&sbi->fs_lock);
@ -573,7 +576,8 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_info *ino = autofs4_dentry_ino(dentry);
/* This is synchronous because it makes the daemon a
little easier */
* little easier
*/
ret = autofs4_wait(sbi, dentry, NFY_EXPIRE);
spin_lock(&sbi->fs_lock);
@ -588,8 +592,10 @@ int autofs4_do_expire_multi(struct super_block *sb, struct vfsmount *mnt,
return ret;
}
/* Call repeatedly until it returns -EAGAIN, meaning there's nothing
more to be done */
/*
* Call repeatedly until it returns -EAGAIN, meaning there's nothing
* more to be done.
*/
int autofs4_expire_multi(struct super_block *sb, struct vfsmount *mnt,
struct autofs_sb_info *sbi, int __user *arg)
{

10
fs/autofs4/init.c
View File

@ -1,14 +1,10 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/init.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include <linux/module.h>
#include <linux/init.h>

25
fs/autofs4/inode.c
View File

@ -1,15 +1,11 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/inode.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2005-2006 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include <linux/kernel.h>
#include <linux/slab.h>
@ -24,7 +20,9 @@
struct autofs_info *autofs4_new_ino(struct autofs_sb_info *sbi)
{
struct autofs_info *ino = kzalloc(sizeof(*ino), GFP_KERNEL);
struct autofs_info *ino;
ino = kzalloc(sizeof(*ino), GFP_KERNEL);
if (ino) {
INIT_LIST_HEAD(&ino->active);
INIT_LIST_HEAD(&ino->expiring);
@ -152,6 +150,7 @@ static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
while ((p = strsep(&options, ",")) != NULL) {
int token;
if (!*p)
continue;
@ -209,9 +208,9 @@ static int parse_options(char *options, int *pipefd, kuid_t *uid, kgid_t *gid,
int autofs4_fill_super(struct super_block *s, void *data, int silent)
{
struct inode * root_inode;
struct dentry * root;
struct file * pipe;
struct inode *root_inode;
struct dentry *root;
struct file *pipe;
int pipefd;
struct autofs_sb_info *sbi;
struct autofs_info *ino;
@ -222,7 +221,7 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
DPRINTK("starting up, sbi = %p",sbi);
DPRINTK("starting up, sbi = %p", sbi);
s->s_fs_info = sbi;
sbi->magic = AUTOFS_SBI_MAGIC;

95
fs/autofs4/root.c
View File

@ -1,16 +1,12 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/root.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include <linux/capability.h>
#include <linux/errno.h>
@ -23,16 +19,18 @@
#include "autofs_i.h"
static int autofs4_dir_symlink(struct inode *,struct dentry *,const char *);
static int autofs4_dir_unlink(struct inode *,struct dentry *);
static int autofs4_dir_rmdir(struct inode *,struct dentry *);
static int autofs4_dir_mkdir(struct inode *,struct dentry *,umode_t);
static long autofs4_root_ioctl(struct file *,unsigned int,unsigned long);
static int autofs4_dir_symlink(struct inode *, struct dentry *, const char *);
static int autofs4_dir_unlink(struct inode *, struct dentry *);
static int autofs4_dir_rmdir(struct inode *, struct dentry *);
static int autofs4_dir_mkdir(struct inode *, struct dentry *, umode_t);
static long autofs4_root_ioctl(struct file *, unsigned int, unsigned long);
#ifdef CONFIG_COMPAT
static long autofs4_root_compat_ioctl(struct file *,unsigned int,unsigned long);
static long autofs4_root_compat_ioctl(struct file *,
unsigned int, unsigned long);
#endif
static int autofs4_dir_open(struct inode *inode, struct file *file);
static struct dentry *autofs4_lookup(struct inode *,struct dentry *, unsigned int);
static struct dentry *autofs4_lookup(struct inode *,
struct dentry *, unsigned int);
static struct vfsmount *autofs4_d_automount(struct path *);
static int autofs4_d_manage(struct dentry *, bool);
static void autofs4_dentry_release(struct dentry *);
@ -74,7 +72,9 @@ const struct dentry_operations autofs4_dentry_operations = {
static void autofs4_add_active(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
struct autofs_info *ino;
ino = autofs4_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
if (!ino->active_count) {
@ -84,13 +84,14 @@ static void autofs4_add_active(struct dentry *dentry)
ino->active_count++;
spin_unlock(&sbi->lookup_lock);
}
return;
}
static void autofs4_del_active(struct dentry *dentry)
{
struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
struct autofs_info *ino;
ino = autofs4_dentry_ino(dentry);
if (ino) {
spin_lock(&sbi->lookup_lock);
ino->active_count--;
@ -100,7 +101,6 @@ static void autofs4_del_active(struct dentry *dentry)
}
spin_unlock(&sbi->lookup_lock);
}
return;
}
static int autofs4_dir_open(struct inode *inode, struct file *file)
@ -320,7 +320,9 @@ static struct dentry *autofs4_mountpoint_changed(struct path *path)
if (autofs_type_indirect(sbi->type) && d_unhashed(dentry)) {
struct dentry *parent = dentry->d_parent;
struct autofs_info *ino;
struct dentry *new = d_lookup(parent, &dentry->d_name);
struct dentry *new;
new = d_lookup(parent, &dentry->d_name);
if (!new)
return NULL;
ino = autofs4_dentry_ino(new);
@ -455,6 +457,7 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
* a mount-trap.
*/
struct inode *inode;
if (ino->flags & (AUTOFS_INF_EXPIRING | AUTOFS_INF_NO_RCU))
return 0;
if (d_mountpoint(dentry))
@ -494,7 +497,8 @@ static int autofs4_d_manage(struct dentry *dentry, bool rcu_walk)
}
/* Lookups in the root directory */
static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
static struct dentry *autofs4_lookup(struct inode *dir,
struct dentry *dentry, unsigned int flags)
{
struct autofs_sb_info *sbi;
struct autofs_info *ino;
@ -513,9 +517,9 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, u
autofs4_oz_mode(sbi));
active = autofs4_lookup_active(dentry);
if (active) {
if (active)
return active;
} else {
else {
/*
* A dentry that is not within the root can never trigger a
* mount operation, unless the directory already exists, so we
@ -526,7 +530,8 @@ static struct dentry *autofs4_lookup(struct inode *dir, struct dentry *dentry, u
return ERR_PTR(-ENOENT);
/* Mark entries in the root as mount triggers */
if (autofs_type_indirect(sbi->type) && IS_ROOT(dentry->d_parent))
if (IS_ROOT(dentry->d_parent) &&
autofs_type_indirect(sbi->type))
__managed_dentry_set_managed(dentry);
ino = autofs4_new_ino(sbi);
@ -664,7 +669,6 @@ static void autofs_set_leaf_automount_flags(struct dentry *dentry)
if (IS_ROOT(parent->d_parent))
return;
managed_dentry_clear_managed(parent);
return;
}
static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
@ -687,7 +691,6 @@ static void autofs_clear_leaf_automount_flags(struct dentry *dentry)
if (d_child->next == &parent->d_subdirs &&
d_child->prev == &parent->d_subdirs)
managed_dentry_set_managed(parent);
return;
}
static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
@ -728,7 +731,8 @@ static int autofs4_dir_rmdir(struct inode *dir, struct dentry *dentry)
return 0;
}
static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
static int autofs4_dir_mkdir(struct inode *dir,
struct dentry *dentry, umode_t mode)
{
struct autofs_sb_info *sbi = autofs4_sbi(dir->i_sb);
struct autofs_info *ino = autofs4_dentry_ino(dentry);
@ -768,7 +772,7 @@ static int autofs4_dir_mkdir(struct inode *dir, struct dentry *dentry, umode_t m
/* Get/set timeout ioctl() operation */
#ifdef CONFIG_COMPAT
static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
compat_ulong_t __user *p)
compat_ulong_t __user *p)
{
int rv;
unsigned long ntimeout;
@ -787,7 +791,7 @@ static inline int autofs4_compat_get_set_timeout(struct autofs_sb_info *sbi,
#endif
static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
unsigned long __user *p)
unsigned long __user *p)
{
int rv;
unsigned long ntimeout;
@ -805,13 +809,15 @@ static inline int autofs4_get_set_timeout(struct autofs_sb_info *sbi,
}
/* Return protocol version */
static inline int autofs4_get_protover(struct autofs_sb_info *sbi, int __user *p)
static inline int autofs4_get_protover(struct autofs_sb_info *sbi,
int __user *p)
{
return put_user(sbi->version, p);
}
/* Return protocol sub version */
static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi, int __user *p)
static inline int autofs4_get_protosubver(struct autofs_sb_info *sbi,
int __user *p)
{
return put_user(sbi->sub_version, p);
}
@ -834,9 +840,9 @@ static inline int autofs4_ask_umount(struct vfsmount *mnt, int __user *p)
}
/* Identify autofs4_dentries - this is so we can tell if there's
an extra dentry refcount or not. We only hold a refcount on the
dentry if its non-negative (ie, d_inode != NULL)
*/
* an extra dentry refcount or not. We only hold a refcount on the
* dentry if its non-negative (ie, d_inode != NULL)
*/
int is_autofs4_dentry(struct dentry *dentry)
{
return dentry && d_really_is_positive(dentry) &&
@ -855,7 +861,7 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
void __user *p = (void __user *)arg;
DPRINTK("cmd = 0x%08x, arg = 0x%08lx, sbi = %p, pgrp = %u",
cmd,arg,sbi,task_pgrp_nr(current));
cmd, arg, sbi, task_pgrp_nr(current));
if (_IOC_TYPE(cmd) != _IOC_TYPE(AUTOFS_IOC_FIRST) ||
_IOC_NR(cmd) - _IOC_NR(AUTOFS_IOC_FIRST) >= AUTOFS_IOC_COUNT)
@ -864,11 +870,11 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
if (!autofs4_oz_mode(sbi) && !capable(CAP_SYS_ADMIN))
return -EPERM;
switch(cmd) {
switch (cmd) {
case AUTOFS_IOC_READY: /* Wait queue: go ahead and retry */
return autofs4_wait_release(sbi,(autofs_wqt_t)arg,0);
return autofs4_wait_release(sbi, (autofs_wqt_t) arg, 0);
case AUTOFS_IOC_FAIL: /* Wait queue: fail with ENOENT */
return autofs4_wait_release(sbi,(autofs_wqt_t)arg,-ENOENT);
return autofs4_wait_release(sbi, (autofs_wqt_t) arg, -ENOENT);
case AUTOFS_IOC_CATATONIC: /* Enter catatonic mode (daemon shutdown) */
autofs4_catatonic_mode(sbi);
return 0;
@ -888,10 +894,12 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp,
/* return a single thing to expire */
case AUTOFS_IOC_EXPIRE:
return autofs4_expire_run(inode->i_sb,filp->f_path.mnt,sbi, p);
return autofs4_expire_run(inode->i_sb,
filp->f_path.mnt, sbi, p);
/* same as above, but can send multiple expires through pipe */
case AUTOFS_IOC_EXPIRE_MULTI:
return autofs4_expire_multi(inode->i_sb,filp->f_path.mnt,sbi, p);
return autofs4_expire_multi(inode->i_sb,
filp->f_path.mnt, sbi, p);
default:
return -ENOSYS;
@ -902,12 +910,13 @@ static long autofs4_root_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
return autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
}
#ifdef CONFIG_COMPAT
static long autofs4_root_compat_ioctl(struct file *filp,
unsigned int cmd, unsigned long arg)
unsigned int cmd, unsigned long arg)
{
struct inode *inode = file_inode(filp);
int ret;
@ -916,7 +925,7 @@ static long autofs4_root_compat_ioctl(struct file *filp,
ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg);
else
ret = autofs4_root_ioctl_unlocked(inode, filp, cmd,
(unsigned long)compat_ptr(arg));
(unsigned long) compat_ptr(arg));
return ret;
}

11
fs/autofs4/symlink.c
View File

@ -1,14 +1,10 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/symlink.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include "autofs_i.h"
@ -18,6 +14,7 @@ static const char *autofs4_get_link(struct dentry *dentry,
{
struct autofs_sb_info *sbi;
struct autofs_info *ino;
if (!dentry)
return ERR_PTR(-ECHILD);
sbi = autofs4_sbi(dentry->d_sb);

49
fs/autofs4/waitq.c
View File

@ -1,15 +1,11 @@
/* -*- c -*- --------------------------------------------------------------- *
*
* linux/fs/autofs/waitq.c
*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
/*
* Copyright 1997-1998 Transmeta Corporation -- All Rights Reserved
* Copyright 2001-2006 Ian Kent <raven@themaw.net>
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ------------------------------------------------------------------------- */
*/
#include <linux/slab.h>
#include <linux/time.h>
@ -18,7 +14,8 @@
#include "autofs_i.h"
/* We make this a static variable rather than a part of the superblock; it
is better if we don't reassign numbers easily even across filesystems */
* is better if we don't reassign numbers easily even across filesystems
*/
static autofs_wqt_t autofs4_next_wait_queue = 1;
/* These are the signals we allow interrupting a pending mount */
@ -69,17 +66,19 @@ static int autofs4_write(struct autofs_sb_info *sbi,
set_fs(KERNEL_DS);
mutex_lock(&sbi->pipe_mutex);
while (bytes &&
(wr = __vfs_write(file,data,bytes,&file->f_pos)) > 0) {
wr = __vfs_write(file, data, bytes, &file->f_pos);
while (bytes && wr) {
data += wr;
bytes -= wr;
wr = __vfs_write(file, data, bytes, &file->f_pos);
}
mutex_unlock(&sbi->pipe_mutex);
set_fs(fs);
/* Keep the currently executing process from receiving a
SIGPIPE unless it was already supposed to get one */
* SIGPIPE unless it was already supposed to get one
*/
if (wr == -EPIPE && !sigpipe) {
spin_lock_irqsave(&current->sighand->siglock, flags);
sigdelset(&current->pending.signal, SIGPIPE);
@ -103,9 +102,10 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
size_t pktsz;
DPRINTK("wait id = 0x%08lx, name = %.*s, type=%d",
(unsigned long) wq->wait_queue_token, wq->name.len, wq->name.name, type);
(unsigned long) wq->wait_queue_token,
wq->name.len, wq->name.name, type);
memset(&pkt,0,sizeof pkt); /* For security reasons */
memset(&pkt, 0, sizeof(pkt)); /* For security reasons */
pkt.hdr.proto_version = sbi->version;
pkt.hdr.type = type;
@ -126,7 +126,8 @@ static void autofs4_notify_daemon(struct autofs_sb_info *sbi,
}
case autofs_ptype_expire_multi:
{
struct autofs_packet_expire_multi *ep = &pkt.v4_pkt.expire_multi;
struct autofs_packet_expire_multi *ep =
&pkt.v4_pkt.expire_multi;
pktsz = sizeof(*ep);
@ -231,7 +232,7 @@ autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
if (wq->name.hash == qstr->hash &&
wq->name.len == qstr->len &&
wq->name.name &&
!memcmp(wq->name.name, qstr->name, qstr->len))
!memcmp(wq->name.name, qstr->name, qstr->len))
break;
}
return wq;
@ -248,7 +249,7 @@ autofs4_find_wait(struct autofs_sb_info *sbi, struct qstr *qstr)
static int validate_request(struct autofs_wait_queue **wait,
struct autofs_sb_info *sbi,
struct qstr *qstr,
struct dentry*dentry, enum autofs_notify notify)
struct dentry *dentry, enum autofs_notify notify)
{
struct autofs_wait_queue *wq;
struct autofs_info *ino;
@ -322,8 +323,10 @@ static int validate_request(struct autofs_wait_queue **wait,
* continue on and create a new request.
*/
if (!IS_ROOT(dentry)) {
if (d_really_is_positive(dentry) && d_unhashed(dentry)) {
if (d_unhashed(dentry) &&
d_really_is_positive(dentry)) {
struct dentry *parent = dentry->d_parent;
new = d_lookup(parent, &dentry->d_name);
if (new)
dentry = new;
@ -340,8 +343,8 @@ static int validate_request(struct autofs_wait_queue **wait,
return 1;
}
int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
enum autofs_notify notify)
int autofs4_wait(struct autofs_sb_info *sbi,
struct dentry *dentry, enum autofs_notify notify)
{
struct autofs_wait_queue *wq;
struct qstr qstr;
@ -411,7 +414,7 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
if (!wq) {
/* Create a new wait queue */
wq = kmalloc(sizeof(struct autofs_wait_queue),GFP_KERNEL);
wq = kmalloc(sizeof(struct autofs_wait_queue), GFP_KERNEL);
if (!wq) {
kfree(qstr.name);
mutex_unlock(&sbi->wq_mutex);
@ -454,7 +457,9 @@ int autofs4_wait(struct autofs_sb_info *sbi, struct dentry *dentry,
(unsigned long) wq->wait_queue_token, wq->name.len,
wq->name.name, notify);
/* autofs4_notify_daemon() may block; it will unlock ->wq_mutex */
/*
* autofs4_notify_daemon() may block; it will unlock ->wq_mutex
*/
autofs4_notify_daemon(sbi, wq, type);
} else {
wq->wait_ctr++;

1
include/linux/auto_dev-ioctl.h
View File

@ -125,7 +125,6 @@ static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
in->size = sizeof(struct autofs_dev_ioctl);
in->ioctlfd = -1;
return;
}
/*

10
include/linux/auto_fs.h
View File

@ -1,14 +1,10 @@
/* -*- linux-c -*- ------------------------------------------------------- *
*
* linux/include/linux/auto_fs.h
*
* Copyright 1997 Transmeta Corporation - All Rights Reserved
/*
* Copyright 1997 Transmeta Corporation - All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
* the terms of the GNU General Public License, version 2, or at your
* option, any later version, incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
*/
#ifndef _LINUX_AUTO_FS_H
#define _LINUX_AUTO_FS_H

19
include/uapi/linux/auto_fs.h
View File

@ -1,7 +1,4 @@
/* -*- linux-c -*- ------------------------------------------------------- *
*
* linux/include/linux/auto_fs.h
*
/*
* Copyright 1997 Transmeta Corporation - All Rights Reserved
*
* This file is part of the Linux kernel and is made available under
@ -63,12 +60,12 @@ struct autofs_packet_expire {
char name[NAME_MAX+1];
};
#define AUTOFS_IOC_READY _IO(0x93,0x60)
#define AUTOFS_IOC_FAIL _IO(0x93,0x61)
#define AUTOFS_IOC_CATATONIC _IO(0x93,0x62)
#define AUTOFS_IOC_PROTOVER _IOR(0x93,0x63,int)
#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,compat_ulong_t)
#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93,0x64,unsigned long)
#define AUTOFS_IOC_EXPIRE _IOR(0x93,0x65,struct autofs_packet_expire)
#define AUTOFS_IOC_READY _IO(0x93, 0x60)
#define AUTOFS_IOC_FAIL _IO(0x93, 0x61)
#define AUTOFS_IOC_CATATONIC _IO(0x93, 0x62)
#define AUTOFS_IOC_PROTOVER _IOR(0x93, 0x63, int)
#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93, 0x64, compat_ulong_t)
#define AUTOFS_IOC_SETTIMEOUT _IOWR(0x93, 0x64, unsigned long)
#define AUTOFS_IOC_EXPIRE _IOR(0x93, 0x65, struct autofs_packet_expire)
#endif /* _UAPI_LINUX_AUTO_FS_H */

15
include/uapi/linux/auto_fs4.h
View File

@ -1,6 +1,4 @@
/* -*- c -*-
* linux/include/linux/auto_fs4.h
*
/*
* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
*
* This file is part of the Linux kernel and is made available under
@ -38,7 +36,6 @@
static inline void set_autofs_type_indirect(unsigned int *type)
{
*type = AUTOFS_TYPE_INDIRECT;
return;
}
static inline unsigned int autofs_type_indirect(unsigned int type)
@ -49,7 +46,6 @@ static inline unsigned int autofs_type_indirect(unsigned int type)
static inline void set_autofs_type_direct(unsigned int *type)
{
*type = AUTOFS_TYPE_DIRECT;
return;
}
static inline unsigned int autofs_type_direct(unsigned int type)
@ -60,7 +56,6 @@ static inline unsigned int autofs_type_direct(unsigned int type)
static inline void set_autofs_type_offset(unsigned int *type)
{
*type = AUTOFS_TYPE_OFFSET;
return;
}
static inline unsigned int autofs_type_offset(unsigned int type)
@ -81,7 +76,6 @@ static inline unsigned int autofs_type_trigger(unsigned int type)
static inline void set_autofs_type_any(unsigned int *type)
{
*type = AUTOFS_TYPE_ANY;
return;
}
static inline unsigned int autofs_type_any(unsigned int type)
@ -154,11 +148,10 @@ union autofs_v5_packet_union {
autofs_packet_expire_direct_t expire_direct;
};
#define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93,0x66,int)
#define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93, 0x66, int)
#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int)
#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int)
#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93, 0x67, int)
#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93, 0x70, int)
#endif /* _LINUX_AUTO_FS4_H */