From 82eaed2beef5ce31ecfeb70a33616e6331a51ef2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 10 Dec 2019 07:30:58 -0500 Subject: [PATCH] nfs: merge xdev and remote file_system_type they are identical now... Reviewed-by: David Howells Signed-off-by: Al Viro Signed-off-by: Anna Schumaker --- fs/nfs/internal.h | 2 +- fs/nfs/namespace.c | 2 +- fs/nfs/nfs4super.c | 22 +--------------------- fs/nfs/super.c | 14 ++++++++------ 4 files changed, 11 insertions(+), 29 deletions(-) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 4a0ba66bc3aa..e338558b7908 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -388,7 +388,7 @@ extern int nfs_wait_atomic_killable(atomic_t *p, unsigned int mode); /* super.c */ extern const struct super_operations nfs_sops; extern struct file_system_type nfs_fs_type; -extern struct file_system_type nfs_xdev_fs_type; +extern struct file_system_type nfs_prepared_fs_type; #if IS_ENABLED(CONFIG_NFS_V4) extern struct file_system_type nfs4_referral_fs_type; #endif diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index a00936dd153b..e5f4f2d760af 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -257,7 +257,7 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh, if (IS_ERR(devname)) mnt = ERR_CAST(devname); else - mnt = vfs_submount(dentry, &nfs_xdev_fs_type, devname, &mount_info); + mnt = vfs_submount(dentry, &nfs_prepared_fs_type, devname, &mount_info); if (mount_info.server) nfs_free_server(mount_info.server); diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c index 2b34d8e124cd..1358d8078737 100644 --- a/fs/nfs/nfs4super.c +++ b/fs/nfs/nfs4super.c @@ -18,19 +18,9 @@ static int nfs4_write_inode(struct inode *inode, struct writeback_control *wbc); static void nfs4_evict_inode(struct inode *inode); -static struct dentry *nfs4_remote_mount(struct file_system_type *fs_type, - int flags, const char *dev_name, void *raw_data); static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data); -static struct file_system_type nfs4_remote_fs_type = { - .owner = THIS_MODULE, - .name = "nfs4", - .mount = nfs4_remote_mount, - .kill_sb = nfs_kill_super, - .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, -}; - struct file_system_type nfs4_referral_fs_type = { .owner = THIS_MODULE, .name = "nfs4", @@ -91,16 +81,6 @@ static void nfs4_evict_inode(struct inode *inode) nfs_clear_inode(inode); } -/* - * Get the superblock for the NFS4 root partition - */ -static struct dentry * -nfs4_remote_mount(struct file_system_type *fs_type, int flags, - const char *dev_name, void *info) -{ - return nfs_fs_mount_common(flags, dev_name, info); -} - struct nfs_referral_count { struct list_head list; const struct task_struct *task; @@ -194,7 +174,7 @@ static struct dentry *do_nfs4_mount(struct nfs_server *server, int flags, else snprintf(root_devname, len, "%s:/", hostname); info->server = server; - root_mnt = vfs_kern_mount(&nfs4_remote_fs_type, flags, root_devname, info); + root_mnt = vfs_kern_mount(&nfs_prepared_fs_type, flags, root_devname, info); if (info->server) nfs_free_server(info->server); info->server = NULL; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index cb0ead628842..60845dc864e7 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -293,7 +293,7 @@ static match_table_t nfs_vers_tokens = { { Opt_vers_err, NULL } }; -static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type, +static struct dentry *nfs_prepared_mount(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data); struct file_system_type nfs_fs_type = { @@ -306,13 +306,14 @@ struct file_system_type nfs_fs_type = { MODULE_ALIAS_FS("nfs"); EXPORT_SYMBOL_GPL(nfs_fs_type); -struct file_system_type nfs_xdev_fs_type = { +struct file_system_type nfs_prepared_fs_type = { .owner = THIS_MODULE, .name = "nfs", - .mount = nfs_xdev_mount, + .mount = nfs_prepared_mount, .kill_sb = nfs_kill_super, .fs_flags = FS_RENAME_DOES_D_MOVE|FS_BINARY_MOUNTDATA, }; +EXPORT_SYMBOL_GPL(nfs_prepared_fs_type); const struct super_operations nfs_sops = { .alloc_inode = nfs_alloc_inode, @@ -2791,11 +2792,12 @@ void nfs_kill_super(struct super_block *s) EXPORT_SYMBOL_GPL(nfs_kill_super); /* - * Clone an NFS2/3/4 server record on xdev traversal (FSID-change) + * Internal use only: mount_info is already set up by caller. + * Used for mountpoint crossings and for nfs4 root. */ static struct dentry * -nfs_xdev_mount(struct file_system_type *fs_type, int flags, - const char *dev_name, void *raw_data) +nfs_prepared_mount(struct file_system_type *fs_type, int flags, + const char *dev_name, void *raw_data) { return nfs_fs_mount_common(flags, dev_name, raw_data); } -- 2.39.5