[lustre-devel] [PATCH 01/22] ext4: add i_fs_version

[James Simmons <jsimmons@infradead.org>]

From: James Simmons <uja.ornl@yahoo.com>

Add inode version field that osd-ldiskfs uses.

Signed-off-by: James Simmons <uja.ornl@yahoo.com>
---
 fs/ext4/ext4.h   | 2 ++
 fs/ext4/ialloc.c | 1 +
 fs/ext4/inode.c  | 4 ++--
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1cb6785..8abbcab 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1063,6 +1063,8 @@ struct ext4_inode_info {
 	struct dquot *i_dquot[MAXQUOTAS];
 #endif
 
+	u64 i_fs_version;
+
 	/* Precomputed uuid+inum+igen checksum for seeding inode checksums */
 	__u32 i_csum_seed;
 
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 764ff4c..09ae4a4 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1100,6 +1100,7 @@ struct inode *__ext4_new_inode(handle_t *handle, struct inode *dir,
 	ei->i_dtime = 0;
 	ei->i_block_group = group;
 	ei->i_last_alloc_group = ~0;
+	ei->i_fs_version = 0;
 
 	ext4_set_inode_flags(inode);
 	if (IS_DIRSYNC(inode))
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c7f77c6..6e66175 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4806,14 +4806,14 @@ static inline void ext4_inode_set_iversion_queried(struct inode *inode, u64 val)
 	if (unlikely(EXT4_I(inode)->i_flags & EXT4_EA_INODE_FL))
 		inode_set_iversion_raw(inode, val);
 	else
-		inode_set_iversion_queried(inode, val);
+		EXT4_I(inode)->i_fs_version = val;
 }
 static inline u64 ext4_inode_peek_iversion(const struct inode *inode)
 {
 	if (unlikely(EXT4_I(inode)->i_flags & EXT4_EA_INODE_FL))
 		return inode_peek_iversion_raw(inode);
 	else
-		return inode_peek_iversion(inode);
+		return EXT4_I(inode)->i_fs_version;
 }
 
 struct inode *__ext4_iget(struct super_block *sb, unsigned long ino,
-- 
1.8.3.1