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 *); - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html