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Commit 51fab693 authored by Liu Bo's avatar Liu Bo Committed by Josef Bacik
Browse files

Btrfs: use token to avoid times mapping extent buffer 



The API in tree log code has done sort of changes, and it proves that
we can benifit from using token, so do the same thing here.

function_graph tracer's timer shows that it costs nearly half time
of before(39.788us -> 22.391us).

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Signed-off-by: default avatarJosef Bacik <jbacik@fusionio.com>
parent dcfac415

fs/btrfs/inode.c

+35 −28
Original line number Diff line number Diff line
@@ -2715,34 +2715,41 @@ static void fill_inode_item(struct btrfs_trans_handle *trans, 
			    struct btrfs_inode_item *item,

			    struct inode *inode)

{

	btrfs_set_inode_uid(leaf, item, i_uid_read(inode));

	btrfs_set_inode_gid(leaf, item, i_gid_read(inode));

	btrfs_set_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size);

	btrfs_set_inode_mode(leaf, item, inode->i_mode);

	btrfs_set_inode_nlink(leaf, item, inode->i_nlink);



	btrfs_set_timespec_sec(leaf, btrfs_inode_atime(item),

			       inode->i_atime.tv_sec);

	btrfs_set_timespec_nsec(leaf, btrfs_inode_atime(item),

				inode->i_atime.tv_nsec);



	btrfs_set_timespec_sec(leaf, btrfs_inode_mtime(item),

			       inode->i_mtime.tv_sec);

	btrfs_set_timespec_nsec(leaf, btrfs_inode_mtime(item),

				inode->i_mtime.tv_nsec);



	btrfs_set_timespec_sec(leaf, btrfs_inode_ctime(item),

			       inode->i_ctime.tv_sec);

	btrfs_set_timespec_nsec(leaf, btrfs_inode_ctime(item),

				inode->i_ctime.tv_nsec);



	btrfs_set_inode_nbytes(leaf, item, inode_get_bytes(inode));

	btrfs_set_inode_generation(leaf, item, BTRFS_I(inode)->generation);

	btrfs_set_inode_sequence(leaf, item, inode->i_version);

	btrfs_set_inode_transid(leaf, item, trans->transid);

	btrfs_set_inode_rdev(leaf, item, inode->i_rdev);

	btrfs_set_inode_flags(leaf, item, BTRFS_I(inode)->flags);

	btrfs_set_inode_block_group(leaf, item, 0);

	struct btrfs_map_token token;



	btrfs_init_map_token(&token);



	btrfs_set_token_inode_uid(leaf, item, i_uid_read(inode), &token);

	btrfs_set_token_inode_gid(leaf, item, i_gid_read(inode), &token);

	btrfs_set_token_inode_size(leaf, item, BTRFS_I(inode)->disk_i_size,

				   &token);

	btrfs_set_token_inode_mode(leaf, item, inode->i_mode, &token);

	btrfs_set_token_inode_nlink(leaf, item, inode->i_nlink, &token);



	btrfs_set_token_timespec_sec(leaf, btrfs_inode_atime(item),

				     inode->i_atime.tv_sec, &token);

	btrfs_set_token_timespec_nsec(leaf, btrfs_inode_atime(item),

				      inode->i_atime.tv_nsec, &token);



	btrfs_set_token_timespec_sec(leaf, btrfs_inode_mtime(item),

				     inode->i_mtime.tv_sec, &token);

	btrfs_set_token_timespec_nsec(leaf, btrfs_inode_mtime(item),

				      inode->i_mtime.tv_nsec, &token);



	btrfs_set_token_timespec_sec(leaf, btrfs_inode_ctime(item),

				     inode->i_ctime.tv_sec, &token);

	btrfs_set_token_timespec_nsec(leaf, btrfs_inode_ctime(item),

				      inode->i_ctime.tv_nsec, &token);



	btrfs_set_token_inode_nbytes(leaf, item, inode_get_bytes(inode),

				     &token);

	btrfs_set_token_inode_generation(leaf, item, BTRFS_I(inode)->generation,

					 &token);

	btrfs_set_token_inode_sequence(leaf, item, inode->i_version, &token);

	btrfs_set_token_inode_transid(leaf, item, trans->transid, &token);

	btrfs_set_token_inode_rdev(leaf, item, inode->i_rdev, &token);

	btrfs_set_token_inode_flags(leaf, item, BTRFS_I(inode)->flags, &token);

	btrfs_set_token_inode_block_group(leaf, item, 0, &token);

}



/*