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OpenCloudOS-Kernel
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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>
This commit is contained in:
Arnd Bergmann 2010-04-27 16:24:25 +02:00 committed by Frederic Weisbecker
parent 977183902a
commit ce8273a573
4 changed files with 9 additions and 7 deletions
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2
fs/smbfs/dir.c
View File

@ -39,7 +39,7 @@ const struct file_operations smb_dir_operations =
{ {
.read = generic_read_dir, .read = generic_read_dir,
.readdir = smb_readdir, .readdir = smb_readdir,
.ioctl = smb_ioctl, .unlocked_ioctl = smb_ioctl,
.open = smb_dir_open, .open = smb_dir_open,
}; };

2
fs/smbfs/file.c
View File

@ -437,7 +437,7 @@ const struct file_operations smb_file_operations =
.aio_read = smb_file_aio_read, .aio_read = smb_file_aio_read,
.write = do_sync_write, .write = do_sync_write,
.aio_write = smb_file_aio_write, .aio_write = smb_file_aio_write,
.ioctl = smb_ioctl, .unlocked_ioctl = smb_ioctl,
.mmap = smb_file_mmap, .mmap = smb_file_mmap,
.open = smb_file_open, .open = smb_file_open,
.release = smb_file_release, .release = smb_file_release,

10
fs/smbfs/ioctl.c
View File

@ -13,6 +13,7 @@
#include <linux/time.h> #include <linux/time.h>
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/highuid.h> #include <linux/highuid.h>
#include <linux/smp_lock.h>
#include <linux/net.h> #include <linux/net.h>
#include <linux/smb_fs.h> #include <linux/smb_fs.h>
@ -22,14 +23,14 @@
#include "proto.h" #include "proto.h"
int long
smb_ioctl(struct inode *inode, struct file *filp, smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
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; struct smb_conn_opt opt;
int result = -EINVAL; int result = -EINVAL;
lock_kernel();
switch (cmd) { switch (cmd) {
uid16_t uid16; uid16_t uid16;
uid_t uid32; uid_t uid32;
@ -62,6 +63,7 @@ smb_ioctl(struct inode *inode, struct file *filp,
default: default:
break; break;
} }
unlock_kernel();
return result; return result;
} }

2
fs/smbfs/proto.h
View File

@ -67,7 +67,7 @@ extern const struct address_space_operations smb_file_aops;
extern const struct file_operations smb_file_operations; extern const struct file_operations smb_file_operations;
extern const struct inode_operations smb_file_inode_operations; extern const struct inode_operations smb_file_inode_operations;
/* ioctl.c */ /* ioctl.c */
extern int smb_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); extern long smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
/* smbiod.c */ /* smbiod.c */
extern void smbiod_wake_up(void); extern void smbiod_wake_up(void);
extern int smbiod_register_server(struct smb_sb_info *server); extern int smbiod_register_server(struct smb_sb_info *server);