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Btrfs: remove no longer used member num_dirty_bgs from transaction

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The member num_dirty_bgs of struct btrfs_transaction is not used anymore,
it is set and incremented but nothing reads its value anymore. Its last
read use was removed by commit 64403612b7 ("btrfs: rework
btrfs_check_space_for_delayed_refs"). So just remove that member.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Filipe Manana
2019-04-15 09:29:19 +01:00
committed by David Sterba
parent 2b584c688b
commit 74f657d89c
3 changed files with 0 additions and 3 deletions
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fs/btrfs/transaction.h
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@@ -80,7 +80,6 @@ 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;