From: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Allow filesystems to decide to perform pre-umount processing whether or not
MNT_FORCE is set.
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/9p/vfs_super.c | 7 ++++---
fs/cifs/cifsfs.c | 6 ++++--
fs/fuse/inode.c | 5 +++--
fs/namespace.c | 4 ++--
fs/nfs/inode.c | 14 +++++++++-----
include/linux/fs.h | 2 +-
6 files changed, 23 insertions(+), 15 deletions(-)
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 61c599b..00c1f6b 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -253,11 +253,12 @@ static int v9fs_show_options(struct seq_
}
static void
-v9fs_umount_begin(struct super_block *sb)
+v9fs_umount_begin(struct vfsmount *vfsmnt, int flags)
{
- struct v9fs_session_info *v9ses = sb->s_fs_info;
+ struct v9fs_session_info *v9ses = vfsmnt->mnt_sb->s_fs_info;
- v9fs_session_cancel(v9ses);
+ if (flags & MNT_FORCE)
+ v9fs_session_cancel(v9ses);
}
static struct super_operations v9fs_super_ops = {
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index d4b713e..8c60c53 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -404,12 +404,14 @@ static struct quotactl_ops cifs_quotactl
#endif
#ifdef CONFIG_CIFS_EXPERIMENTAL
-static void cifs_umount_begin(struct super_block * sblock)
+static void cifs_umount_begin(struct vfsmount * vfsmnt, int flags)
{
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo * tcon;
- cifs_sb = CIFS_SB(sblock);
+ if (!(flags & MNT_FORCE))
+ return;
+ cifs_sb = CIFS_SB(vfsmnt->mnt_sb);
if(cifs_sb == NULL)
return;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index fd34037..7b3d4e7 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -195,9 +195,10 @@ struct inode *fuse_iget(struct super_blo
return inode;
}
-static void fuse_umount_begin(struct super_block *sb)
+static void fuse_umount_begin(struct vfsmount *vfsmnt, int flags)
{
- fuse_abort_conn(get_fuse_conn_super(sb));
+ if (flags & MNT_FORCE)
+ fuse_abort_conn(get_fuse_conn_super(vfsmnt->mnt_sb));
}
static void fuse_put_super(struct super_block *sb)
diff --git a/fs/namespace.c b/fs/namespace.c
index 7bff436..b21c5c2 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -576,8 +576,8 @@ static int do_umount(struct vfsmount *mn
*/
lock_kernel();
- if ((flags & MNT_FORCE) && sb->s_op->umount_begin)
- sb->s_op->umount_begin(sb);
+ if (sb->s_op->umount_begin)
+ sb->s_op->umount_begin(mnt, flags);
unlock_kernel();
/*
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 1fd3452..cfcc585 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -64,7 +64,7 @@ static void nfs_destroy_inode(struct ino
static int nfs_write_inode(struct inode *,int);
static void nfs_delete_inode(struct inode *);
static void nfs_clear_inode(struct inode *);
-static void nfs_umount_begin(struct super_block *);
+static void nfs_umount_begin(struct vfsmount *, int);
static int nfs_statfs(struct super_block *, struct kstatfs *);
static int nfs_show_options(struct seq_file *, struct vfsmount *);
static int nfs_show_stats(struct seq_file *, struct vfsmount *);
@@ -179,15 +179,19 @@ nfs_clear_inode(struct inode *inode)
BUG_ON(atomic_read(&nfsi->data_updates) != 0);
}
-void
-nfs_umount_begin(struct super_block *sb)
+static void nfs_umount_begin(struct vfsmount *vfsmnt, int flags)
{
- struct rpc_clnt *rpc = NFS_SB(sb)->client;
+ struct nfs_server *server;
+ struct rpc_clnt *rpc;
+ if (!(flags & MNT_FORCE))
+ return;
/* -EIO all pending I/O */
+ server = NFS_SB(vfsmnt->mnt_sb);
+ rpc = server->client;
if (!IS_ERR(rpc))
rpc_killall_tasks(rpc);
- rpc = NFS_SB(sb)->client_acl;
+ rpc = server->client_acl;
if (!IS_ERR(rpc))
rpc_killall_tasks(rpc);
}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 162c6e5..f83400a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1100,7 +1100,7 @@ struct super_operations {
int (*statfs) (struct super_block *, struct kstatfs *);
int (*remount_fs) (struct super_block *, int *, char *);
void (*clear_inode) (struct inode *);
- void (*umount_begin) (struct super_block *);
+ void (*umount_begin) (struct vfsmount *, int);
int (*show_options)(struct seq_file *, struct vfsmount *);
int (*show_stats)(struct seq_file *, struct vfsmount *);
-
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