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] nilfs2: use atomic64_t type for inodes_count and blocks_count fields in nilfs_root struct

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The cp_inodes_count and cp_blocks_count are represented as __le64 type in
on-disk structure (struct nilfs_checkpoint).  But analogous fields in
in-core structure (struct nilfs_root) are represented by atomic_t type.

This patch replaces atomic_t on atomic64_t type in representation of
inodes_count and blocks_count fields in struct nilfs_root.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Acked-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Acked-by: Joern Engel <joern@logfs.org>
Cc: Clemens Eisserer <linuxhippy@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vyacheslav Dubeyko 2013-07-03 15:08:06 -07:00 committed by Linus Torvalds
parent c7ef972c44
commit e5f7f84843
6 changed files with 16 additions and 14 deletions
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2
fs/nilfs2/ifile.c
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@ -174,7 +174,7 @@ int nilfs_ifile_count_free_inodes(struct inode *ifile,
*nmaxinodes = 0;
*nfreeinodes = 0;
nused = atomic_read(&NILFS_I(ifile)->i_root->inodes_count);
nused = atomic64_read(&NILFS_I(ifile)->i_root->inodes_count);
err = nilfs_palloc_count_max_entries(ifile, nused, nmaxinodes);
if (likely(!err))
*nfreeinodes = *nmaxinodes - nused;

8
fs/nilfs2/inode.c
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@ -54,7 +54,7 @@ void nilfs_inode_add_blocks(struct inode *inode, int n)
inode_add_bytes(inode, (1 << inode->i_blkbits) * n);
if (root)
atomic_add(n, &root->blocks_count);
atomic64_add(n, &root->blocks_count);
}
void nilfs_inode_sub_blocks(struct inode *inode, int n)
@ -63,7 +63,7 @@ void nilfs_inode_sub_blocks(struct inode *inode, int n)
inode_sub_bytes(inode, (1 << inode->i_blkbits) * n);
if (root)
atomic_sub(n, &root->blocks_count);
atomic64_sub(n, &root->blocks_count);
}
/**
@ -369,7 +369,7 @@ struct inode *nilfs_new_inode(struct inode *dir, umode_t mode)
goto failed_ifile_create_inode;
/* reference count of i_bh inherits from nilfs_mdt_read_block() */
atomic_inc(&root->inodes_count);
atomic64_inc(&root->inodes_count);
inode_init_owner(inode, dir, mode);
inode->i_ino = ino;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
@ -801,7 +801,7 @@ void nilfs_evict_inode(struct inode *inode)
ret = nilfs_ifile_delete_inode(ii->i_root->ifile, inode->i_ino);
if (!ret)
atomic_dec(&ii->i_root->inodes_count);
atomic64_dec(&ii->i_root->inodes_count);
nilfs_clear_inode(inode);

4
fs/nilfs2/segment.c
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@ -835,9 +835,9 @@ static int nilfs_segctor_fill_in_checkpoint(struct nilfs_sc_info *sci)
raw_cp->cp_snapshot_list.ssl_next = 0;
raw_cp->cp_snapshot_list.ssl_prev = 0;
raw_cp->cp_inodes_count =
cpu_to_le64(atomic_read(&sci->sc_root->inodes_count));
cpu_to_le64(atomic64_read(&sci->sc_root->inodes_count));
raw_cp->cp_blocks_count =
cpu_to_le64(atomic_read(&sci->sc_root->blocks_count));
cpu_to_le64(atomic64_read(&sci->sc_root->blocks_count));
raw_cp->cp_nblk_inc =
cpu_to_le64(sci->sc_nblk_inc + sci->sc_nblk_this_inc);
raw_cp->cp_create = cpu_to_le64(sci->sc_seg_ctime);

8
fs/nilfs2/super.c
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@ -554,8 +554,10 @@ int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt,
if (err)
goto failed_bh;
atomic_set(&root->inodes_count, le64_to_cpu(raw_cp->cp_inodes_count));
atomic_set(&root->blocks_count, le64_to_cpu(raw_cp->cp_blocks_count));
atomic64_set(&root->inodes_count,
le64_to_cpu(raw_cp->cp_inodes_count));
atomic64_set(&root->blocks_count,
le64_to_cpu(raw_cp->cp_blocks_count));
nilfs_cpfile_put_checkpoint(nilfs->ns_cpfile, cno, bh_cp);
@ -647,7 +649,7 @@ static int nilfs_statfs(struct dentry *dentry, struct kstatfs *buf)
* curent inodes count as maximum possible and
* zero as free inodes value.
*/
nmaxinodes = atomic_read(&root->inodes_count);
nmaxinodes = atomic64_read(&root->inodes_count);
nfreeinodes = 0;
err = 0;
} else

4
fs/nilfs2/the_nilfs.c
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@ -764,8 +764,8 @@ nilfs_find_or_create_root(struct the_nilfs *nilfs, __u64 cno)
new->ifile = NULL;
new->nilfs = nilfs;
atomic_set(&new->count, 1);
atomic_set(&new->inodes_count, 0);
atomic_set(&new->blocks_count, 0);
atomic64_set(&new->inodes_count, 0);
atomic64_set(&new->blocks_count, 0);
rb_link_node(&new->rb_node, parent, p);
rb_insert_color(&new->rb_node, &nilfs->ns_cptree);

4
fs/nilfs2/the_nilfs.h
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@ -241,8 +241,8 @@ struct nilfs_root {
struct the_nilfs *nilfs;
struct inode *ifile;
atomic_t inodes_count;
atomic_t blocks_count;
atomic64_t inodes_count;
atomic64_t blocks_count;
};
/* Special checkpoint number */