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authorDavid Sterba <dsterba@suse.com>2017-11-08 01:54:33 +0100
committerDavid Sterba <dsterba@suse.com>2018-01-22 16:08:14 +0100
commit5302e0896445ac3a9c707bd42c39c58a49959980 (patch)
tree71ebb14db4375fa265cf437d1b1a5c637ae7558c /fs/btrfs/transaction.h
parent165c8b022c492f7eb33f7c936ac063a6fd4e90a3 (diff)
btrfs: reorder btrfs_transaction members for better packing
There are now 20 bytes of holes, we can reduce that to 4 by minor changes. Moving 'aborted' to the status and flags is also more logical, similar for num_dirty_bgs. The size goes from 432 to 416. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/transaction.h')
-rw-r--r--fs/btrfs/transaction.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 1805fd101767..6beee072b1bd 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -58,6 +58,7 @@ struct btrfs_transaction {
/* Be protected by fs_info->trans_lock when we want to change it. */
enum btrfs_trans_state state;
+ int aborted;
struct list_head list;
struct extent_io_tree dirty_pages;
unsigned long start_time;
@@ -70,7 +71,6 @@ struct btrfs_transaction {
struct list_head dirty_bgs;
struct list_head io_bgs;
struct list_head dropped_roots;
- unsigned int num_dirty_bgs;
/*
* we need to make sure block group deletion doesn't race with
@@ -79,11 +79,11 @@ struct btrfs_transaction {
*/
struct mutex cache_write_mutex;
spinlock_t dirty_bgs_lock;
+ unsigned int num_dirty_bgs;
/* Protected by spin lock fs_info->unused_bgs_lock. */
struct list_head deleted_bgs;
spinlock_t dropped_roots_lock;
struct btrfs_delayed_ref_root delayed_refs;
- int aborted;
struct btrfs_fs_info *fs_info;
};