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| author |   David Sterba <dsterba@suse.com> | 2017-11-08 01:54:33 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-01-22 16:08:14 +0100 |
| commit | 5302e0896445ac3a9c707bd42c39c58a49959980 (patch) | |
| tree | 71ebb14db4375fa265cf437d1b1a5c637ae7558c /fs/btrfs/transaction.h | |
| parent | btrfs: use narrower type for btrfs_transaction::num_dirty_bgs (diff) | |
| download | linux-dev-5302e0896445ac3a9c707bd42c39c58a49959980.tar.xz linux-dev-5302e0896445ac3a9c707bd42c39c58a49959980.zip | |
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.h | 4 |
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; }; |