From: Amir Goldstein <amir73il@xxxxxxxxxxxx>
On snapshot take, after copying the pre-allocated blocks, some are
fixed to make the snapshot image appear as a valid Ext4 file system.
The has_snapshot flags is cleared from the super block as well as
the last_snapshot field and all snapshot inodes are cleared
(to appear as empty inodes).
Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxxxxx>
Signed-off-by: Yongqiang Yang <xiaoqiangnk@xxxxxxxxx>
---
fs/ext4/ext4.h | 2 ++
fs/ext4/inode.c | 4 ++--
2 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 3cf6602..c04a031 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1850,6 +1850,8 @@ struct buffer_head *ext4_bread(handle_t *, struct inode *,
int ext4_get_block(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
+extern blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
+ struct ext4_inode_info *ei);
extern struct inode *ext4_iget(struct super_block *, unsigned long);
extern int ext4_write_inode(struct inode *, struct writeback_control *);
extern int ext4_setattr(struct dentry *, struct iattr *);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c3d4e7a..4bc60f1 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5203,8 +5203,8 @@ void ext4_get_inode_flags(struct ext4_inode_info *ei)
} while (cmpxchg(&ei->i_flags, old_fl, new_fl) != old_fl);
}
-static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
- struct ext4_inode_info *ei)
+blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
+ struct ext4_inode_info *ei)
{
blkcnt_t i_blocks ;
struct inode *inode = &(ei->vfs_inode);
--
1.7.0.4
--
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