mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-17 01:34:00 +08:00
c7ef972c44
Currently, NILFS2 returns 0 as free inodes count (f_ffree) and current used inodes count as total file nodes in file system (f_files): df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/loop0 2 2 0 100% /mnt/nilfs2 This patch implements real calculation of free inodes count. First of all, it is calculated total file nodes in file system as (desc_blocks_count * groups_per_desc_block * entries_per_group). Then, it is calculated free inodes count as difference the total file nodes and used inodes count. As a result, we have such output for NILFS2: df -i Filesystem Inodes IUsed IFree IUse% Mounted on /dev/loop0 4194304 2114701 2079603 51% /mnt/nilfs2 Reported-by: Clemens Eisserer <linuxhippy@gmail.com> Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Tested-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Joern Engel <joern@logfs.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/*
|
|
* ifile.h - NILFS inode file
|
|
*
|
|
* Copyright (C) 2006-2008 Nippon Telegraph and Telephone Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* Written by Amagai Yoshiji <amagai@osrg.net>
|
|
* Revised by Ryusuke Konishi <ryusuke@osrg.net>
|
|
*
|
|
*/
|
|
|
|
#ifndef _NILFS_IFILE_H
|
|
#define _NILFS_IFILE_H
|
|
|
|
#include <linux/fs.h>
|
|
#include <linux/buffer_head.h>
|
|
#include <linux/nilfs2_fs.h>
|
|
#include "mdt.h"
|
|
#include "alloc.h"
|
|
|
|
|
|
static inline struct nilfs_inode *
|
|
nilfs_ifile_map_inode(struct inode *ifile, ino_t ino, struct buffer_head *ibh)
|
|
{
|
|
void *kaddr = kmap(ibh->b_page);
|
|
return nilfs_palloc_block_get_entry(ifile, ino, ibh, kaddr);
|
|
}
|
|
|
|
static inline void nilfs_ifile_unmap_inode(struct inode *ifile, ino_t ino,
|
|
struct buffer_head *ibh)
|
|
{
|
|
kunmap(ibh->b_page);
|
|
}
|
|
|
|
int nilfs_ifile_create_inode(struct inode *, ino_t *, struct buffer_head **);
|
|
int nilfs_ifile_delete_inode(struct inode *, ino_t);
|
|
int nilfs_ifile_get_inode_block(struct inode *, ino_t, struct buffer_head **);
|
|
|
|
int nilfs_ifile_count_free_inodes(struct inode *, u64 *, u64 *);
|
|
|
|
int nilfs_ifile_read(struct super_block *sb, struct nilfs_root *root,
|
|
size_t inode_size, struct nilfs_inode *raw_inode,
|
|
struct inode **inodep);
|
|
|
|
#endif /* _NILFS_IFILE_H */
|