Commit 67e55205 authored by Alessio Igor Bogani's avatar Alessio Igor Bogani Committed by Al Viro
Browse files

vfs: umount_begin BKL pushdown 



Push BKL down into ->umount_begin()

Signed-off-by: default avatarAlessio Igor Bogani <abogani@texware.it>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 091bf762

fs/9p/vfs_super.c

+5 −1
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@ 
#include <linux/mount.h>

#include <linux/idr.h>

#include <linux/sched.h>

#include <linux/smp_lock.h>

#include <net/9p/9p.h>

#include <net/9p/client.h>
@@ -230,9 +231,12 @@ static int v9fs_show_options(struct seq_file *m, struct vfsmount *mnt) 
static void

v9fs_umount_begin(struct super_block *sb)

{

	struct v9fs_session_info *v9ses = sb->s_fs_info;

	struct v9fs_session_info *v9ses;



	lock_kernel();

	v9ses = sb->s_fs_info;

	v9fs_session_cancel(v9ses);

	unlock_kernel();

}



static const struct super_operations v9fs_super_ops = {

fs/cifs/cifsfs.c

+3 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ 
#include <linux/delay.h>

#include <linux/kthread.h>

#include <linux/freezer.h>

#include <linux/smp_lock.h>

#include "cifsfs.h"

#include "cifspdu.h"

#define DECLARE_GLOBALS_HERE
@@ -530,6 +531,7 @@ static void cifs_umount_begin(struct super_block *sb) 
	if (tcon == NULL)

		return;



	lock_kernel();

	read_lock(&cifs_tcp_ses_lock);

	if (tcon->tc_count == 1)

		tcon->tidStatus = CifsExiting;
@@ -548,6 +550,7 @@ static void cifs_umount_begin(struct super_block *sb) 
	}

/* BB FIXME - finish add checks for tidStatus BB */



	unlock_kernel();

	return;

}

fs/fuse/inode.c

+3 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include <linux/random.h>

#include <linux/sched.h>

#include <linux/exportfs.h>

#include <linux/smp_lock.h>



MODULE_AUTHOR("Miklos Szeredi <miklos@szeredi.hu>");

MODULE_DESCRIPTION("Filesystem in Userspace");
@@ -259,7 +260,9 @@ struct inode *fuse_iget(struct super_block *sb, u64 nodeid, 


static void fuse_umount_begin(struct super_block *sb)

{

	lock_kernel();

	fuse_abort_conn(get_fuse_conn_super(sb));

	unlock_kernel();

}



static void fuse_send_destroy(struct fuse_conn *fc)

fs/namespace.c

+0 −2
Original line number Diff line number Diff line
@@ -1073,9 +1073,7 @@ static int do_umount(struct vfsmount *mnt, int flags) 
	 */



	if (flags & MNT_FORCE && sb->s_op->umount_begin) {

		lock_kernel();

		sb->s_op->umount_begin(sb);

		unlock_kernel();

	}



	/*

fs/nfs/super.c

+6 −1
Original line number Diff line number Diff line
@@ -683,9 +683,12 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt) 
 */

static void nfs_umount_begin(struct super_block *sb)

{

	struct nfs_server *server = NFS_SB(sb);

	struct nfs_server *server;

	struct rpc_clnt *rpc;



	lock_kernel();



	server = NFS_SB(sb);

	/* -EIO all pending I/O */

	rpc = server->client_acl;

	if (!IS_ERR(rpc))
@@ -693,6 +696,8 @@ static void nfs_umount_begin(struct super_block *sb) 
	rpc = server->client;

	if (!IS_ERR(rpc))

		rpc_killall_tasks(rpc);



	unlock_kernel();

}



/*