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NFS: Convert v4 into a module

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This patch exports symbols needed by the v4 module.  In addition, I also
switch over to using IS_ENABLED() to check if CONFIG_NFS_V4 or
CONFIG_NFS_V4_MODULE are set.

The module (nfs4.ko) will be created in the same directory as nfs.ko and
will be automatically loaded the first time you try to mount over NFS v4.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker 2012-07-30 16:05:25 -04:00 • committed by Trond Myklebust
parent 1c606fb74c
commit 89d77c8fa8
25 changed files with 155 additions and 116 deletions
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6
include/linux/nfs_fs.h
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@ -191,7 +191,7 @@ struct nfs_inode {
struct hlist_head silly_list;
wait_queue_head_t waitqueue;
#ifdef CONFIG_NFS_V4
#if IS_ENABLED(CONFIG_NFS_V4)
struct nfs4_cached_acl *nfs4_acl;
/* NFSv4 state */
struct list_head open_states;
@ -428,7 +428,7 @@ extern __be32 root_nfs_parse_addr(char *name); /*__init*/
* linux/fs/nfs/file.c
*/
extern const struct file_operations nfs_file_operations;
#ifdef CONFIG_NFS_V4
#if IS_ENABLED(CONFIG_NFS_V4)
extern const struct file_operations nfs4_file_operations;
#endif /* CONFIG_NFS_V4 */
extern const struct address_space_operations nfs_file_aops;
@ -538,7 +538,7 @@ extern void nfs_writeback_done(struct rpc_task *, struct nfs_write_data *);
extern int nfs_wb_all(struct inode *inode);
extern int nfs_wb_page(struct inode *inode, struct page* page);
extern int nfs_wb_page_cancel(struct inode *inode, struct page* page);
#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4)
#if IS_ENABLED(CONFIG_NFS_V3) || IS_ENABLED(CONFIG_NFS_V4)
extern int nfs_commit_inode(struct inode *, int);
extern struct nfs_commit_data *nfs_commitdata_alloc(void);
extern void nfs_commit_free(struct nfs_commit_data *data);