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[4/6] btrfs: reoder btrfs_trans_handle members for better packing

Message ID e6a3d3470b20fa79a000a939729653c220b583cb.1510767175.git.dsterba@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

David Sterba Nov. 15, 2017, 5:42 p.m. UTC 
Recent updates to the structure left some holes, reorder the types so
the packing is tight. The size goes from 112 to 104 on 64bit.

Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/transaction.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index afa88f035654..edf53112a6f2 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -111,11 +111,12 @@  struct btrfs_trans_handle {
 	u64 transid;
 	u64 bytes_reserved;
 	u64 chunk_bytes_reserved;
-	refcount_t use_count;
 	unsigned long delayed_ref_updates;
 	struct btrfs_transaction *transaction;
 	struct btrfs_block_rsv *block_rsv;
 	struct btrfs_block_rsv *orig_rsv;
+	refcount_t use_count;
+	unsigned int type;
 	short aborted;
 	bool adding_csums;
 	bool allocating_chunk;
@@ -123,7 +124,6 @@  struct btrfs_trans_handle {
 	bool reloc_reserved;
 	bool sync;
 	bool dirty;
-	unsigned int type;
 	struct btrfs_root *root;
 	struct btrfs_fs_info *fs_info;
 	struct list_head new_bgs;