] 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@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>

1 files changed, 5 insertions, 3 deletions

diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 7d257e78fbad..1427de5ebf4d 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