diff options
| -rw-r--r-- | fs/btrfs/block-rsv.h | 77 | ||||
| -rw-r--r-- | fs/btrfs/ctree.h | 69 | ||||
| -rw-r--r-- | fs/btrfs/extent-tree.c | 1 |
3 files changed, 79 insertions, 68 deletions
diff --git a/fs/btrfs/block-rsv.h b/fs/btrfs/block-rsv.h new file mode 100644 index 000000000000..359e73d329e7 --- /dev/null +++ b/fs/btrfs/block-rsv.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef BTRFS_BLOCK_RSV_H +#define BTRFS_BLOCK_RSV_H + +enum btrfs_reserve_flush_enum; + +/* + * Types of block reserves + */ +enum { + BTRFS_BLOCK_RSV_GLOBAL, + BTRFS_BLOCK_RSV_DELALLOC, + BTRFS_BLOCK_RSV_TRANS, + BTRFS_BLOCK_RSV_CHUNK, + BTRFS_BLOCK_RSV_DELOPS, + BTRFS_BLOCK_RSV_DELREFS, + BTRFS_BLOCK_RSV_EMPTY, + BTRFS_BLOCK_RSV_TEMP, +}; + +struct btrfs_block_rsv { + u64 size; + u64 reserved; + struct btrfs_space_info *space_info; + spinlock_t lock; + unsigned short full; + unsigned short type; + unsigned short failfast; + + /* + * Qgroup equivalent for @size @reserved + * + * Unlike normal @size/@reserved for inode rsv, qgroup doesn't care + * about things like csum size nor how many tree blocks it will need to + * reserve. + * + * Qgroup cares more about net change of the extent usage. + * + * So for one newly inserted file extent, in worst case it will cause + * leaf split and level increase, nodesize for each file extent is + * already too much. + * + * In short, qgroup_size/reserved is the upper limit of possible needed + * qgroup metadata reservation. + */ + u64 qgroup_rsv_size; + u64 qgroup_rsv_reserved; +}; + +void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type); +struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info, + unsigned short type); +void btrfs_init_metadata_block_rsv(struct btrfs_fs_info *fs_info, + struct btrfs_block_rsv *rsv, + unsigned short type); +void btrfs_free_block_rsv(struct btrfs_fs_info *fs_info, + struct btrfs_block_rsv *rsv); +int btrfs_block_rsv_add(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, u64 num_bytes, + enum btrfs_reserve_flush_enum flush); +int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_factor); +int btrfs_block_rsv_refill(struct btrfs_root *root, + struct btrfs_block_rsv *block_rsv, u64 min_reserved, + enum btrfs_reserve_flush_enum flush); +int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, + struct btrfs_block_rsv *dst_rsv, u64 num_bytes, + bool update_size); +int btrfs_block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv, u64 num_bytes); +int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info, + struct btrfs_block_rsv *dest, u64 num_bytes, + int min_factor); +void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info, + struct btrfs_block_rsv *block_rsv, + u64 num_bytes); + +#endif /* BTRFS_BLOCK_RSV_H */ diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index b78470fdc226..adb6d2747e0c 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -32,6 +32,7 @@ #include "extent_io.h" #include "extent_map.h" #include "async-thread.h" +#include "block-rsv.h" struct btrfs_trans_handle; struct btrfs_transaction; @@ -404,49 +405,6 @@ struct raid_kobject { }; /* - * Types of block reserves - */ -enum { - BTRFS_BLOCK_RSV_GLOBAL, - BTRFS_BLOCK_RSV_DELALLOC, - BTRFS_BLOCK_RSV_TRANS, - BTRFS_BLOCK_RSV_CHUNK, - BTRFS_BLOCK_RSV_DELOPS, - BTRFS_BLOCK_RSV_DELREFS, - BTRFS_BLOCK_RSV_EMPTY, - BTRFS_BLOCK_RSV_TEMP, -}; - -struct btrfs_block_rsv { - u64 size; - u64 reserved; - struct btrfs_space_info *space_info; - spinlock_t lock; - unsigned short full; - unsigned short type; - unsigned short failfast; - - /* - * Qgroup equivalent for @size @reserved - * - * Unlike normal @size/@reserved for inode rsv, qgroup doesn't care - * about things like csum size nor how many tree blocks it will need to - * reserve. - * - * Qgroup cares more about net change of the extent usage. - * - * So for one newly inserted file extent, in worst case it will cause - * leaf split and level increase, nodesize for each file extent is - * already too much. - * - * In short, qgroup_size/reserved is the upper limit of possible needed - * qgroup metadata reservation. - */ - u64 qgroup_rsv_size; - u64 qgroup_rsv_reserved; -}; - -/* * free clusters are used to claim free space in relatively large chunks, * allowing us to do less seeky writes. They are used for all metadata * allocations. In ssd_spread mode they are also used for data allocations. @@ -2826,31 +2784,6 @@ void btrfs_delalloc_release_metadata(struct btrfs_inode *inode, u64 num_bytes, bool qgroup_free); int btrfs_delalloc_reserve_space(struct inode *inode, struct extent_changeset **reserved, u64 start, u64 len); -void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type); -struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info, - unsigned short type); -void btrfs_init_metadata_block_rsv(struct btrfs_fs_info *fs_info, - struct btrfs_block_rsv *rsv, - unsigned short type); -void btrfs_free_block_rsv(struct btrfs_fs_info *fs_info, - struct btrfs_block_rsv *rsv); -int btrfs_block_rsv_add(struct btrfs_root *root, - struct btrfs_block_rsv *block_rsv, u64 num_bytes, - enum btrfs_reserve_flush_enum flush); -int btrfs_block_rsv_check(struct btrfs_block_rsv *block_rsv, int min_factor); -int btrfs_block_rsv_refill(struct btrfs_root *root, - struct btrfs_block_rsv *block_rsv, u64 min_reserved, - enum btrfs_reserve_flush_enum flush); -int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src_rsv, - struct btrfs_block_rsv *dst_rsv, u64 num_bytes, - bool update_size); -int btrfs_block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv, u64 num_bytes); -int btrfs_cond_migrate_bytes(struct btrfs_fs_info *fs_info, - struct btrfs_block_rsv *dest, u64 num_bytes, - int min_factor); -void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info, - struct btrfs_block_rsv *block_rsv, - u64 num_bytes); void btrfs_delayed_refs_rsv_release(struct btrfs_fs_info *fs_info, int nr); void btrfs_update_delayed_refs_rsv(struct btrfs_trans_handle *trans); int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info, diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index c887f3352341..3f2ccfed3b0e 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -29,6 +29,7 @@ #include "qgroup.h" #include "ref-verify.h" #include "space-info.h" +#include "block-rsv.h" #undef SCRAMBLE_DELAYED_REFS |