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nfs: Use remove_proc_subtree() instead remove_proc_entry() 

Thanks for Al Viro's comments of killing proc_fs_nfs completely.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Kinglong Mee 2015-07-01 23:00:29 +08:00 committed by Trond Myklebust
parent 71f81e51ee
commit 6a062a3687
1 changed files with 7 additions and 18 deletions
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25
fs/nfs/client.c
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@ -1192,8 +1192,6 @@ void nfs_clients_init(struct net *net)
}
#ifdef CONFIG_PROC_FS
static struct proc_dir_entry *proc_fs_nfs;
static int nfs_server_list_open(struct inode *inode, struct file *file);
static void *nfs_server_list_start(struct seq_file *p, loff_t *pos);
static void *nfs_server_list_next(struct seq_file *p, void *v, loff_t *pos);
@ -1435,27 +1433,20 @@ void nfs_fs_proc_net_exit(struct net *net)
*/
int __init nfs_fs_proc_init(void)
{
struct proc_dir_entry *p;
proc_fs_nfs = proc_mkdir("fs/nfsfs", NULL);
if (!proc_fs_nfs)
if (!proc_mkdir("fs/nfsfs", NULL))
goto error_0;
/* a file of servers with which we're dealing */
p = proc_symlink("servers", proc_fs_nfs, "../../net/nfsfs/servers");
if (!p)
if (!proc_symlink("fs/nfsfs/servers", NULL, "../../net/nfsfs/servers"))
goto error_1;
/* a file of volumes that we have mounted */
p = proc_symlink("volumes", proc_fs_nfs, "../../net/nfsfs/volumes");
if (!p)
goto error_2;
return 0;
if (!proc_symlink("fs/nfsfs/volumes", NULL, "../../net/nfsfs/volumes"))
goto error_1;
error_2:
remove_proc_entry("servers", proc_fs_nfs);
return 0;
error_1:
remove_proc_entry("fs/nfsfs", NULL);
remove_proc_subtree("fs/nfsfs", NULL);
error_0:
return -ENOMEM;
}
@ -1465,9 +1456,7 @@ error_0:
*/
void nfs_fs_proc_exit(void)
{
remove_proc_entry("volumes", proc_fs_nfs);
remove_proc_entry("servers", proc_fs_nfs);
remove_proc_entry("fs/nfsfs", NULL);
remove_proc_subtree("fs/nfsfs", NULL);
}
#endif /* CONFIG_PROC_FS */