From: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>
Subject: [PATCH v6 2/2] nilfs2: use atomic64_t type for inodes_count and blocks_count fields in nilfs_root struct
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@xxxxxxxxxxx>
CC: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
CC: Joern Engel <joern@xxxxxxxxx>
---
fs/nilfs2/ifile.c | 2 +-
fs/nilfs2/inode.c | 8 ++++----
fs/nilfs2/segment.c | 4 ++--
fs/nilfs2/super.c | 8 +++++---
fs/nilfs2/the_nilfs.c | 4 ++--
fs/nilfs2/the_nilfs.h | 4 ++--
6 files changed, 16 insertions(+), 14 deletions(-)
diff --git a/fs/nilfs2/ifile.c b/fs/nilfs2/ifile.c
index d788a59..6548c78 100644
--- a/fs/nilfs2/ifile.c
+++ b/fs/nilfs2/ifile.c
@@ -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;
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 689fb60..3444dca 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -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);
}
/**
@@ -350,7 +350,7 @@ 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;
@@ -782,7 +782,7 @@ 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);
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index a5752a58..bd88a74 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -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);
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 7d257e7..1427de5 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -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
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 41e6a04..94c451c 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -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);
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index be1267a..de8cc53 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -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 */
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
