#include <linux/pagemap.h>
#include <linux/parser.h>
#include <linux/bitops.h>
-#include <linux/smp_lock.h>
#include <linux/magic.h>
#include "autofs_i.h"
#include <linux/module.h>
static void ino_lnkfree(struct autofs_info *ino)
{
- kfree(ino->u.symlink);
- ino->u.symlink = NULL;
+ if (ino->u.symlink) {
+ kfree(ino->u.symlink);
+ ino->u.symlink = NULL;
+ }
}
struct autofs_info *autofs4_init_ino(struct autofs_info *ino,
if (ino == NULL)
return NULL;
- ino->flags = 0;
- ino->mode = mode;
- ino->inode = NULL;
- ino->dentry = NULL;
- ino->size = 0;
+ if (!reinit) {
+ ino->flags = 0;
+ ino->inode = NULL;
+ ino->dentry = NULL;
+ ino->size = 0;
+ INIT_LIST_HEAD(&ino->active);
+ INIT_LIST_HEAD(&ino->expiring);
+ atomic_set(&ino->count, 0);
+ }
+ ino->mode = mode;
ino->last_used = jiffies;
- atomic_set(&ino->count, 0);
ino->sbi = sbi;
/*
* In the event of a failure in get_sb_nodev the superblock
* info is not present so nothing else has been setup, so
- * just exit when we are called from deactivate_super.
+ * just call kill_anon_super when we are called from
+ * deactivate_super.
*/
if (!sbi)
- return;
+ goto out_kill_sb;
- sb->s_fs_info = NULL;
-
- if ( !sbi->catatonic )
- autofs4_catatonic_mode(sbi); /* Free wait queues, close pipe */
+ /* Free wait queues, close pipe */
+ autofs4_catatonic_mode(sbi);
/* Clean up and release dangling references */
autofs4_force_release(sbi);
+ sb->s_fs_info = NULL;
kfree(sbi);
+out_kill_sb:
DPRINTK("shutting down");
kill_anon_super(sb);
}
static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt)
{
struct autofs_sb_info *sbi = autofs4_sbi(mnt->mnt_sb);
+ struct inode *root_inode = mnt->mnt_sb->s_root->d_inode;
if (!sbi)
return 0;
seq_printf(m, ",fd=%d", sbi->pipefd);
+ if (root_inode->i_uid != 0)
+ seq_printf(m, ",uid=%u", root_inode->i_uid);
+ if (root_inode->i_gid != 0)
+ seq_printf(m, ",gid=%u", root_inode->i_gid);
seq_printf(m, ",pgrp=%d", sbi->oz_pgrp);
seq_printf(m, ",timeout=%lu", sbi->exp_timeout/HZ);
seq_printf(m, ",minproto=%d", sbi->min_proto);
return 0;
}
-static struct super_operations autofs4_sops = {
+static const struct super_operations autofs4_sops = {
.statfs = simple_statfs,
.show_options = autofs4_show_options,
};
};
static int parse_options(char *options, int *pipefd, uid_t *uid, gid_t *gid,
- pid_t *pgrp, unsigned int *type,
- int *minproto, int *maxproto)
+ pid_t *pgrp, unsigned int *type, int *minproto, int *maxproto)
{
char *p;
substring_t args[MAX_OPT_ARGS];
*uid = current->uid;
*gid = current->gid;
- *pgrp = process_group(current);
+ *pgrp = task_pgrp_nr(current);
*minproto = AUTOFS_MIN_PROTO_VERSION;
*maxproto = AUTOFS_MAX_PROTO_VERSION;
struct autofs_sb_info *sbi;
struct autofs_info *ino;
- sbi = (struct autofs_sb_info *) kmalloc(sizeof(*sbi), GFP_KERNEL);
- if ( !sbi )
+ sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
+ if (!sbi)
goto fail_unlock;
DPRINTK("starting up, sbi = %p",sbi);
- memset(sbi, 0, sizeof(*sbi));
-
s->s_fs_info = sbi;
sbi->magic = AUTOFS_SBI_MAGIC;
sbi->pipefd = -1;
sbi->pipe = NULL;
sbi->catatonic = 1;
sbi->exp_timeout = 0;
- sbi->oz_pgrp = process_group(current);
+ sbi->oz_pgrp = task_pgrp_nr(current);
sbi->sb = s;
sbi->version = 0;
sbi->sub_version = 0;
mutex_init(&sbi->wq_mutex);
spin_lock_init(&sbi->fs_lock);
sbi->queues = NULL;
+ spin_lock_init(&sbi->lookup_lock);
+ INIT_LIST_HEAD(&sbi->active_list);
+ INIT_LIST_HEAD(&sbi->expiring_list);
s->s_blocksize = 1024;
s->s_blocksize_bits = 10;
s->s_magic = AUTOFS_SUPER_MAGIC;
root->d_fsdata = ino;
/* Can this call block? */
- if (parse_options(data, &pipefd,
- &root_inode->i_uid, &root_inode->i_gid,
- &sbi->oz_pgrp, &sbi->type,
- &sbi->min_proto, &sbi->max_proto)) {
+ if (parse_options(data, &pipefd, &root_inode->i_uid, &root_inode->i_gid,
+ &sbi->oz_pgrp, &sbi->type, &sbi->min_proto,
+ &sbi->max_proto)) {
printk("autofs: called with bogus options\n");
goto fail_dput;
}
DPRINTK("pipe fd = %d, pgrp = %u", pipefd, sbi->oz_pgrp);
pipe = fget(pipefd);
- if ( !pipe ) {
+ if (!pipe) {
printk("autofs: could not open pipe file descriptor\n");
goto fail_dput;
}
- if ( !pipe->f_op || !pipe->f_op->write )
+ if (!pipe->f_op || !pipe->f_op->write)
goto fail_fput;
sbi->pipe = pipe;
sbi->pipefd = pipefd;
fail_free:
kfree(sbi);
s->s_fs_info = NULL;
- kill_anon_super(s);
fail_unlock:
return -EINVAL;
}