Commit 93d84b6d authored by John Kacur's avatar John Kacur Committed by Frederic Weisbecker
Browse files

ncpfs: BKL ioctl pushdown 



Convert ncp_ioctl to an unlocked_ioctl and push down the bkl into it.

Signed-off-by: default avatarJohn Kacur <jkacur@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
parent 1977bb2e

fs/ncpfs/dir.c

+1 −1
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ const struct file_operations ncp_dir_operations = 
{

	.read		= generic_read_dir,

	.readdir	= ncp_readdir,

	.ioctl		= ncp_ioctl,

	.unlocked_ioctl	= ncp_ioctl,

#ifdef CONFIG_COMPAT

	.compat_ioctl	= ncp_compat_ioctl,

#endif

fs/ncpfs/file.c

+1 −1
Original line number Diff line number Diff line
@@ -295,7 +295,7 @@ const struct file_operations ncp_file_operations = 
	.llseek 	= ncp_remote_llseek,

	.read		= ncp_file_read,

	.write		= ncp_file_write,

	.ioctl		= ncp_ioctl,

	.unlocked_ioctl	= ncp_ioctl,

#ifdef CONFIG_COMPAT

	.compat_ioctl	= ncp_compat_ioctl,

#endif

fs/ncpfs/ioctl.c

+16 −11
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 
#include <linux/smp_lock.h>

#include <linux/vmalloc.h>

#include <linux/sched.h>

#include <linux/smp_lock.h>



#include <linux/ncp_fs.h>
@@ -261,9 +262,9 @@ ncp_get_charsets(struct ncp_server* server, struct ncp_nls_ioctl __user *arg) 
}

#endif /* CONFIG_NCPFS_NLS */



static int __ncp_ioctl(struct inode *inode, struct file *filp,

	      unsigned int cmd, unsigned long arg)

static long __ncp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)

{

	struct inode *inode = filp->f_dentry->d_inode;

	struct ncp_server *server = NCP_SERVER(inode);

	int result;

	struct ncp_ioctl_request request;
@@ -841,11 +842,11 @@ static int ncp_ioctl_need_write(unsigned int cmd) 
	}

}



int ncp_ioctl(struct inode *inode, struct file *filp,

	      unsigned int cmd, unsigned long arg)

long ncp_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)

{

	int ret;

	long ret;



	lock_kernel();

	if (ncp_ioctl_need_write(cmd)) {

		/*

		 * inside the ioctl(), any failures which
@@ -853,24 +854,28 @@ int ncp_ioctl(struct inode *inode, struct file *filp, 
		 * -EACCESS, so it seems consistent to keep

		 *  that here.

		 */

		if (mnt_want_write(filp->f_path.mnt))

			return -EACCES;

		if (mnt_want_write(filp->f_path.mnt)) {

			ret = -EACCES;

			goto out;

		}

	}

	ret = __ncp_ioctl(inode, filp, cmd, arg);

	ret = __ncp_ioctl(filp, cmd, arg);

	if (ncp_ioctl_need_write(cmd))

		mnt_drop_write(filp->f_path.mnt);



out:

	unlock_kernel();

	return ret;

}



#ifdef CONFIG_COMPAT

long ncp_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

{

	struct inode *inode = file->f_path.dentry->d_inode;

	int ret;

	long ret;



	lock_kernel();

	arg = (unsigned long) compat_ptr(arg);

	ret = ncp_ioctl(inode, file, cmd, arg);

	ret = ncp_ioctl(file, cmd, arg);

	unlock_kernel();

	return ret;

}

include/linux/ncp_fs.h

+1 −1
Original line number Diff line number Diff line
@@ -210,7 +210,7 @@ int ncp_date_dos2unix(__le16 time, __le16 date); 
void ncp_date_unix2dos(int unix_date, __le16 * time, __le16 * date);



/* linux/fs/ncpfs/ioctl.c */

int ncp_ioctl(struct inode *, struct file *, unsigned int, unsigned long);

long ncp_ioctl(struct file *, unsigned int, unsigned long);

long ncp_compat_ioctl(struct file *, unsigned int, unsigned long);



/* linux/fs/ncpfs/sock.c */

CRA Git | Maintained and supported by SUSTech CRA and CCSE