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Diffstat (limited to 'fs/autofs4')
-rw-r--r--fs/autofs4/autofs_i.h3
-rw-r--r--fs/autofs4/dev-ioctl.c6
-rw-r--r--fs/autofs4/inode.c13
3 files changed, 6 insertions, 16 deletions
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 3f1128b..4218e26 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -122,6 +122,7 @@ struct autofs_sb_info {
spinlock_t lookup_lock;
struct list_head active_list;
struct list_head expiring_list;
+ struct rcu_head rcu;
};
static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
@@ -271,7 +272,7 @@ void autofs4_clean_ino(struct autofs_info *);
static inline int autofs_prepare_pipe(struct file *pipe)
{
- if (!pipe->f_op || !pipe->f_op->write)
+ if (!pipe->f_op->write)
return -EINVAL;
if (!S_ISFIFO(file_inode(pipe)->i_mode))
return -EINVAL;
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 0f00da3..1818ce7 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -658,12 +658,6 @@ static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __use
goto out;
}
- if (!fp->f_op) {
- err = -ENOTTY;
- fput(fp);
- goto out;
- }
-
sbi = autofs_dev_ioctl_sbi(fp);
if (!sbi || sbi->magic != AUTOFS_SBI_MAGIC) {
err = -EINVAL;
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index b104726..3b9cc9b 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -56,18 +56,13 @@ void autofs4_kill_sb(struct super_block *sb)
* just call kill_anon_super when we are called from
* deactivate_super.
*/
- if (!sbi)
- goto out_kill_sb;
-
- /* Free wait queues, close pipe */
- autofs4_catatonic_mode(sbi);
-
- sb->s_fs_info = NULL;
- kfree(sbi);
+ if (sbi) /* Free wait queues, close pipe */
+ autofs4_catatonic_mode(sbi);
-out_kill_sb:
DPRINTK("shutting down");
kill_litter_super(sb);
+ if (sbi)
+ kfree_rcu(sbi, rcu);
}
static int autofs4_show_options(struct seq_file *m, struct dentry *root)
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