Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[cascardo/linux.git] / fs / btrfs / transaction.h

diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index a994bb0..b05b2f6 100644 (file)
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -32,6 +32,10 @@ enum btrfs_trans_state {
        TRANS_STATE_MAX                 = 6,
 };
 
+#define BTRFS_TRANS_HAVE_FREE_BGS      0
+#define BTRFS_TRANS_DIRTY_BG_RUN       1
+#define BTRFS_TRANS_CACHE_ENOSPC       2
+
 struct btrfs_transaction {
        u64 transid;
        /*
@@ -46,11 +50,9 @@ struct btrfs_transaction {
         */
        atomic_t num_writers;
        atomic_t use_count;
+       atomic_t pending_ordered;
 
-       /*
-        * true if there is free bgs operations in this transaction
-        */
-       int have_free_bgs;
+       unsigned long flags;
 
        /* Be protected by fs_info->trans_lock when we want to change it. */
        enum btrfs_trans_state state;
@@ -59,9 +61,9 @@ struct btrfs_transaction {
        unsigned long start_time;
        wait_queue_head_t writer_wait;
        wait_queue_head_t commit_wait;
+       wait_queue_head_t pending_wait;
        struct list_head pending_snapshots;
        struct list_head pending_chunks;
-       struct list_head pending_ordered;
        struct list_head switch_commits;
        struct list_head dirty_bgs;
        struct list_head io_bgs;
@@ -80,7 +82,6 @@ struct btrfs_transaction {
        spinlock_t dropped_roots_lock;
        struct btrfs_delayed_ref_root delayed_refs;
        int aborted;
-       int dirty_bg_run;
 };
 
 #define __TRANS_FREEZABLE      (1U << 0)
@@ -107,7 +108,6 @@ struct btrfs_trans_handle {
        u64 transid;
        u64 bytes_reserved;
        u64 chunk_bytes_reserved;
-       u64 qgroup_reserved;
        unsigned long use_count;
        unsigned long blocks_reserved;
        unsigned long blocks_used;
@@ -129,7 +129,6 @@ struct btrfs_trans_handle {
         */
        struct btrfs_root *root;
        struct seq_list delayed_ref_elem;
-       struct list_head ordered;
        struct list_head qgroup_ref_list;
        struct list_head new_bgs;
 };
@@ -185,9 +184,10 @@ static inline void btrfs_clear_skip_qgroup(struct btrfs_trans_handle *trans)
 int btrfs_end_transaction(struct btrfs_trans_handle *trans,
                          struct btrfs_root *root);
 struct btrfs_trans_handle *btrfs_start_transaction(struct btrfs_root *root,
-                                                  int num_items);
+                                                  unsigned int num_items);
 struct btrfs_trans_handle *btrfs_start_transaction_lflush(
-                                       struct btrfs_root *root, int num_items);
+                                       struct btrfs_root *root,
+                                       unsigned int num_items);
 struct btrfs_trans_handle *btrfs_join_transaction(struct btrfs_root *root);
 struct btrfs_trans_handle *btrfs_join_transaction_nolock(struct btrfs_root *root);
 struct btrfs_trans_handle *btrfs_attach_transaction(struct btrfs_root *root);