Commit cde64360 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

ext4: Remove i_ext_generation from ext4_inode_info structure 



The i_ext_generation was incremented, but never used.  Remove it to
slim down the ext4_inode_info structure.

Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 30773840

fs/ext4/ext4_extents.h

+0 −5
Original line number Diff line number Diff line
@@ -194,11 +194,6 @@ static inline unsigned short ext_depth(struct inode *inode) 
	return le16_to_cpu(ext_inode_hdr(inode)->eh_depth);

}



static inline void ext4_ext_tree_changed(struct inode *inode)

{

	EXT4_I(inode)->i_ext_generation++;

}



static inline void

ext4_ext_invalidate_cache(struct inode *inode)

{

fs/ext4/ext4_i.h

+0 −1
Original line number Diff line number Diff line
@@ -117,7 +117,6 @@ struct ext4_inode_info { 
	struct inode vfs_inode;

	struct jbd2_inode jinode;



	unsigned long i_ext_generation;

	struct ext4_ext_cache i_cached_extent;

	/*

	 * File creation time. Its function is same as that of

fs/ext4/extents.c

+0 −2
Original line number Diff line number Diff line
@@ -1621,7 +1621,6 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode, 
		ext4_ext_drop_refs(npath);

		kfree(npath);

	}

	ext4_ext_tree_changed(inode);

	ext4_ext_invalidate_cache(inode);

	return err;

}
@@ -2232,7 +2231,6 @@ static int ext4_ext_remove_space(struct inode *inode, ext4_lblk_t start) 
		}

	}

out:

	ext4_ext_tree_changed(inode);

	ext4_ext_drop_refs(path);

	kfree(path);

	ext4_journal_stop(handle);