Btrfs: account for large extents with enospc

[mirror_ubuntu-hirsute-kernel.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index e6fbbd74b716ae69da265779af5317c0057f1a18..b3dd55f52f713dc8be60fcd8e2a96512e07c2ca8 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -198,6 +198,8 @@ static int btrfs_csum_sizes[] = { 4, 0 };
 
 #define BTRFS_DIRTY_METADATA_THRESH    (32 * 1024 * 1024)
 
+#define BTRFS_MAX_EXTENT_SIZE (128 * 1024 * 1024)
+
 /*
  * The key defines the order in the tree, and so it also defines (optimal)
  * block layout.
@@ -1020,6 +1022,9 @@ enum btrfs_raid_types {
                                         BTRFS_BLOCK_GROUP_RAID6 |   \
                                         BTRFS_BLOCK_GROUP_DUP |     \
                                         BTRFS_BLOCK_GROUP_RAID10)
+#define BTRFS_BLOCK_GROUP_RAID56_MASK  (BTRFS_BLOCK_GROUP_RAID5 |   \
+                                        BTRFS_BLOCK_GROUP_RAID6)
+
 /*
  * We need a bit for restriper to be able to tell when chunks of type
  * SINGLE are available.  This "extended" profile format is used in
@@ -1238,7 +1243,6 @@ enum btrfs_disk_cache_state {
        BTRFS_DC_ERROR          = 1,
        BTRFS_DC_CLEAR          = 2,
        BTRFS_DC_SETUP          = 3,
-       BTRFS_DC_NEED_WRITE     = 4,
 };
 
 struct btrfs_caching_control {
@@ -1276,7 +1280,6 @@ struct btrfs_block_group_cache {
        unsigned long full_stripe_len;
 
        unsigned int ro:1;
-       unsigned int dirty:1;
        unsigned int iref:1;
        unsigned int has_caching_ctl:1;
        unsigned int removed:1;
@@ -1314,6 +1317,9 @@ struct btrfs_block_group_cache {
        struct list_head ro_list;
 
        atomic_t trimming;
+
+       /* For dirty block groups */
+       struct list_head dirty_list;
 };
 
 /* delayed seq elem */
@@ -1740,6 +1746,7 @@ struct btrfs_fs_info {
 
        spinlock_t unused_bgs_lock;
        struct list_head unused_bgs;
+       struct mutex unused_bg_unpin_mutex;
 
        /* For btrfs to record security options */
        struct security_mnt_opts security_opts;
@@ -1775,6 +1782,7 @@ struct btrfs_subvolume_writers {
 #define BTRFS_ROOT_DEFRAG_RUNNING      6
 #define BTRFS_ROOT_FORCE_COW           7
 #define BTRFS_ROOT_MULTI_LOG_TASKS     8
+#define BTRFS_ROOT_DIRTY               9
 
 /*
  * in ram representation of the tree.  extent_root is used for all allocations
@@ -1793,8 +1801,6 @@ struct btrfs_root {
        struct btrfs_fs_info *fs_info;
        struct extent_io_tree dirty_log_pages;
 
-       struct kobject root_kobj;
-       struct completion kobj_unregister;
        struct mutex objectid_mutex;
 
        spinlock_t accounting_lock;
@@ -2464,31 +2470,6 @@ BTRFS_SETGET_STACK_FUNCS(stack_inode_gid, struct btrfs_inode_item, gid, 32);
 BTRFS_SETGET_STACK_FUNCS(stack_inode_mode, struct btrfs_inode_item, mode, 32);
 BTRFS_SETGET_STACK_FUNCS(stack_inode_rdev, struct btrfs_inode_item, rdev, 64);
 BTRFS_SETGET_STACK_FUNCS(stack_inode_flags, struct btrfs_inode_item, flags, 64);
-
-static inline struct btrfs_timespec *
-btrfs_inode_atime(struct btrfs_inode_item *inode_item)
-{
-       unsigned long ptr = (unsigned long)inode_item;
-       ptr += offsetof(struct btrfs_inode_item, atime);
-       return (struct btrfs_timespec *)ptr;
-}
-
-static inline struct btrfs_timespec *
-btrfs_inode_mtime(struct btrfs_inode_item *inode_item)
-{
-       unsigned long ptr = (unsigned long)inode_item;
-       ptr += offsetof(struct btrfs_inode_item, mtime);
-       return (struct btrfs_timespec *)ptr;
-}
-
-static inline struct btrfs_timespec *
-btrfs_inode_ctime(struct btrfs_inode_item *inode_item)
-{
-       unsigned long ptr = (unsigned long)inode_item;
-       ptr += offsetof(struct btrfs_inode_item, ctime);
-       return (struct btrfs_timespec *)ptr;
-}
-
 BTRFS_SETGET_FUNCS(timespec_sec, struct btrfs_timespec, sec, 64);
 BTRFS_SETGET_FUNCS(timespec_nsec, struct btrfs_timespec, nsec, 32);
 BTRFS_SETGET_STACK_FUNCS(stack_timespec_sec, struct btrfs_timespec, sec, 64);
@@ -3481,8 +3462,8 @@ void btrfs_put_block_group_cache(struct btrfs_fs_info *info);
 u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo);
 int btrfs_error_unpin_extent_range(struct btrfs_root *root,
                                   u64 start, u64 end);
-int btrfs_error_discard_extent(struct btrfs_root *root, u64 bytenr,
-                              u64 num_bytes, u64 *actual_bytes);
+int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr,
+                        u64 num_bytes, u64 *actual_bytes);
 int btrfs_force_chunk_alloc(struct btrfs_trans_handle *trans,
                            struct btrfs_root *root, u64 type);
 int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range);