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authorArnd Bergmann <arnd@arndb.de>2010-04-27 16:24:25 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2010-05-17 05:27:04 +0200
commitce8273a573918612cbd320597db3d5dd89578454 (patch)
treef3a6df94053ee0c3276c318e108c88bc479106c3 /fs/smbfs/ioctl.c
parent977183902a52d1e0adc986f9462424db5a545044 (diff)
smbfs: Push down BKL into ioctl function
Converting from ->ioctl to ->unlocked_ioctl with explicit lock_kernel lets us kill the ioctl operation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [fixed inode reference in smb_ioctl] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'fs/smbfs/ioctl.c')
-rw-r--r--fs/smbfs/ioctl.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/smbfs/ioctl.c b/fs/smbfs/ioctl.c
index dbae1f8ea26f..07215312ad39 100644
--- a/fs/smbfs/ioctl.c
+++ b/fs/smbfs/ioctl.c
@@ -13,6 +13,7 @@
#include <linux/time.h>
#include <linux/mm.h>
#include <linux/highuid.h>
+#include <linux/smp_lock.h>
#include <linux/net.h>
#include <linux/smb_fs.h>
@@ -22,14 +23,14 @@
#include "proto.h"
-int
-smb_ioctl(struct inode *inode, struct file *filp,
- unsigned int cmd, unsigned long arg)
+long
+smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
- struct smb_sb_info *server = server_from_inode(inode);
+ struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
struct smb_conn_opt opt;
int result = -EINVAL;
+ lock_kernel();
switch (cmd) {
uid16_t uid16;
uid_t uid32;
@@ -62,6 +63,7 @@ smb_ioctl(struct inode *inode, struct file *filp,
default:
break;
}
+ unlock_kernel();
return result;
}