diff options
| author | Pekka Enberg <penberg@kernel.org> | 2010-10-24 19:57:05 +0300 |
|---|---|---|
| committer | Pekka Enberg <penberg@kernel.org> | 2010-10-24 19:57:05 +0300 |
| commit | 6d4121f6c20a0e86231d52f535f1c82423b3326f (patch) | |
| tree | 5c235cac699ca86b504850aa663ddadde0455a61 /fs/autofs4/root.c | |
| parent | 92a5bbc11ff2442a54b2f1d313088c245828ef4e (diff) | |
| parent | 35da7a307c535f9c2929cae277f3df425c9f9b1e (diff) | |
Merge branch 'master' into for-linus
Conflicts:
include/linux/percpu.h
mm/percpu.c
Diffstat (limited to 'fs/autofs4/root.c')
| -rw-r--r-- | fs/autofs4/root.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c index cb1bd38dc08..d5c1401f003 100644 --- a/fs/autofs4/root.c +++ b/fs/autofs4/root.c @@ -19,7 +19,7 @@ #include <linux/param.h> #include <linux/time.h> #include <linux/compat.h> -#include <linux/smp_lock.h> +#include <linux/mutex.h> #include "autofs_i.h" @@ -28,7 +28,9 @@ 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 *,int); 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); +#endif static int autofs4_dir_open(struct inode *inode, struct file *file); static struct dentry *autofs4_lookup(struct inode *,struct dentry *, struct nameidata *); static void *autofs4_follow_link(struct dentry *, struct nameidata *); @@ -978,15 +980,17 @@ static int autofs4_root_ioctl_unlocked(struct inode *inode, struct file *filp, } } +static DEFINE_MUTEX(autofs4_ioctl_mutex); + static long autofs4_root_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { long ret; struct inode *inode = filp->f_dentry->d_inode; - lock_kernel(); + mutex_lock(&autofs4_ioctl_mutex); ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg); - unlock_kernel(); + mutex_unlock(&autofs4_ioctl_mutex); return ret; } @@ -998,13 +1002,13 @@ static long autofs4_root_compat_ioctl(struct file *filp, struct inode *inode = filp->f_path.dentry->d_inode; int ret; - lock_kernel(); + mutex_lock(&autofs4_ioctl_mutex); if (cmd == AUTOFS_IOC_READY || cmd == AUTOFS_IOC_FAIL) ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, arg); else ret = autofs4_root_ioctl_unlocked(inode, filp, cmd, (unsigned long)compat_ptr(arg)); - unlock_kernel(); + mutex_unlock(&autofs4_ioctl_mutex); return ret; } |