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authorDavid S. Miller <davem@davemloft.net>2009-08-12 20:44:53 -0400
committerDavid S. Miller <davem@davemloft.net>2009-08-12 20:44:53 -0400
commitaa11d958d1a6572eda08214d7c6a735804fe48a5 (patch)
treed025b05270ad1e010660d17eeadc6ac3c1abbd7d /fs/btrfs/ctree.h
parent07f6642ee9418e962e54cbc07471cfe2e559c568 (diff)
parent9799218ae36910af50f002a5db1802d576fffb43 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: arch/microblaze/include/asm/socket.h
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h27
1 files changed, 23 insertions, 4 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 98a873838717..837435ce84ca 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -481,7 +481,7 @@ struct btrfs_shared_data_ref {
481 481
482struct btrfs_extent_inline_ref { 482struct btrfs_extent_inline_ref {
483 u8 type; 483 u8 type;
484 u64 offset; 484 __le64 offset;
485} __attribute__ ((__packed__)); 485} __attribute__ ((__packed__));
486 486
487/* old style backrefs item */ 487/* old style backrefs item */
@@ -689,6 +689,7 @@ struct btrfs_space_info {
689 struct list_head block_groups; 689 struct list_head block_groups;
690 spinlock_t lock; 690 spinlock_t lock;
691 struct rw_semaphore groups_sem; 691 struct rw_semaphore groups_sem;
692 atomic_t caching_threads;
692}; 693};
693 694
694/* 695/*
@@ -707,6 +708,9 @@ struct btrfs_free_cluster {
707 /* first extent starting offset */ 708 /* first extent starting offset */
708 u64 window_start; 709 u64 window_start;
709 710
711 /* if this cluster simply points at a bitmap in the block group */
712 bool points_to_bitmap;
713
710 struct btrfs_block_group_cache *block_group; 714 struct btrfs_block_group_cache *block_group;
711 /* 715 /*
712 * when a cluster is allocated from a block group, we put the 716 * when a cluster is allocated from a block group, we put the
@@ -716,24 +720,37 @@ struct btrfs_free_cluster {
716 struct list_head block_group_list; 720 struct list_head block_group_list;
717}; 721};
718 722
723enum btrfs_caching_type {
724 BTRFS_CACHE_NO = 0,
725 BTRFS_CACHE_STARTED = 1,
726 BTRFS_CACHE_FINISHED = 2,
727};
728
719struct btrfs_block_group_cache { 729struct btrfs_block_group_cache {
720 struct btrfs_key key; 730 struct btrfs_key key;
721 struct btrfs_block_group_item item; 731 struct btrfs_block_group_item item;
732 struct btrfs_fs_info *fs_info;
722 spinlock_t lock; 733 spinlock_t lock;
723 struct mutex cache_mutex;
724 u64 pinned; 734 u64 pinned;
725 u64 reserved; 735 u64 reserved;
726 u64 flags; 736 u64 flags;
727 int cached; 737 u64 sectorsize;
738 int extents_thresh;
739 int free_extents;
740 int total_bitmaps;
728 int ro; 741 int ro;
729 int dirty; 742 int dirty;
730 743
744 /* cache tracking stuff */
745 wait_queue_head_t caching_q;
746 int cached;
747
731 struct btrfs_space_info *space_info; 748 struct btrfs_space_info *space_info;
732 749
733 /* free space cache stuff */ 750 /* free space cache stuff */
734 spinlock_t tree_lock; 751 spinlock_t tree_lock;
735 struct rb_root free_space_bytes;
736 struct rb_root free_space_offset; 752 struct rb_root free_space_offset;
753 u64 free_space;
737 754
738 /* block group cache stuff */ 755 /* block group cache stuff */
739 struct rb_node cache_node; 756 struct rb_node cache_node;
@@ -808,6 +825,7 @@ struct btrfs_fs_info {
808 struct mutex drop_mutex; 825 struct mutex drop_mutex;
809 struct mutex volume_mutex; 826 struct mutex volume_mutex;
810 struct mutex tree_reloc_mutex; 827 struct mutex tree_reloc_mutex;
828 struct rw_semaphore extent_commit_sem;
811 829
812 /* 830 /*
813 * this protects the ordered operations list only while we are 831 * this protects the ordered operations list only while we are
@@ -1988,6 +2006,7 @@ void btrfs_delalloc_reserve_space(struct btrfs_root *root, struct inode *inode,
1988 u64 bytes); 2006 u64 bytes);
1989void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode, 2007void btrfs_delalloc_free_space(struct btrfs_root *root, struct inode *inode,
1990 u64 bytes); 2008 u64 bytes);
2009void btrfs_free_pinned_extents(struct btrfs_fs_info *info);
1991/* ctree.c */ 2010/* ctree.c */
1992int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key, 2011int btrfs_bin_search(struct extent_buffer *eb, struct btrfs_key *key,
1993 int level, int *slot); 2012 int level, int *slot);