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authorJosef Bacik <josef@toxicpanda.com>2019-09-23 10:05:19 -0400
committerDavid Sterba <dsterba@suse.com>2019-11-18 12:46:47 +0100
commit9c7d3a548331e72ba3613eaa5c8a74839462b764 (patch)
tree6e3e7a011b1085121feb1cda159c4074492895c5 /fs/btrfs/extent_io.h
parent6f0d04f8e72e1c7fd17e7fac0fea82553a6443b4 (diff)
btrfs: move extent_io_tree defs to their own header
extent_io.c/h are huge, encompassing a bunch of different things. The extent_io_tree code can live on its own, so separate this out. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h217
1 files changed, 1 insertions, 216 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index e813f593202d..8c782d061132 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -7,35 +7,6 @@
#include <linux/refcount.h>
#include "ulist.h"
-/* bits for the extent state */
-#define EXTENT_DIRTY (1U << 0)
-#define EXTENT_UPTODATE (1U << 1)
-#define EXTENT_LOCKED (1U << 2)
-#define EXTENT_NEW (1U << 3)
-#define EXTENT_DELALLOC (1U << 4)
-#define EXTENT_DEFRAG (1U << 5)
-#define EXTENT_BOUNDARY (1U << 6)
-#define EXTENT_NODATASUM (1U << 7)
-#define EXTENT_CLEAR_META_RESV (1U << 8)
-#define EXTENT_NEED_WAIT (1U << 9)
-#define EXTENT_DAMAGED (1U << 10)
-#define EXTENT_NORESERVE (1U << 11)
-#define EXTENT_QGROUP_RESERVED (1U << 12)
-#define EXTENT_CLEAR_DATA_RESV (1U << 13)
-#define EXTENT_DELALLOC_NEW (1U << 14)
-#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \
- EXTENT_CLEAR_DATA_RESV)
-#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING)
-
-/*
- * Redefined bits above which are used only in the device allocation tree,
- * shouldn't be using EXTENT_LOCKED / EXTENT_BOUNDARY / EXTENT_CLEAR_META_RESV
- * / EXTENT_CLEAR_DATA_RESV because they have special meaning to the bit
- * manipulation functions
- */
-#define CHUNK_ALLOCATED EXTENT_DIRTY
-#define CHUNK_TRIMMED EXTENT_DEFRAG
-
/*
* flags for bio submission. The high bits indicate the compression
* type for this bio
@@ -89,12 +60,11 @@ enum {
#define BITMAP_LAST_BYTE_MASK(nbits) \
(BYTE_MASK >> (-(nbits) & (BITS_PER_BYTE - 1)))
-struct extent_state;
struct btrfs_root;
struct btrfs_inode;
struct btrfs_io_bio;
struct io_failure_record;
-
+struct extent_io_tree;
typedef blk_status_t (extent_submit_bio_start_t)(void *private_data,
struct bio *bio, u64 bio_offset);
@@ -111,47 +81,6 @@ struct extent_io_ops {
int mirror);
};
-enum {
- IO_TREE_FS_INFO_FREED_EXTENTS0,
- IO_TREE_FS_INFO_FREED_EXTENTS1,
- IO_TREE_INODE_IO,
- IO_TREE_INODE_IO_FAILURE,
- IO_TREE_RELOC_BLOCKS,
- IO_TREE_TRANS_DIRTY_PAGES,
- IO_TREE_ROOT_DIRTY_LOG_PAGES,
- IO_TREE_SELFTEST,
-};
-
-struct extent_io_tree {
- struct rb_root state;
- struct btrfs_fs_info *fs_info;
- void *private_data;
- u64 dirty_bytes;
- bool track_uptodate;
-
- /* Who owns this io tree, should be one of IO_TREE_* */
- u8 owner;
-
- spinlock_t lock;
- const struct extent_io_ops *ops;
-};
-
-struct extent_state {
- u64 start;
- u64 end; /* inclusive */
- struct rb_node rb_node;
-
- /* ADD NEW ELEMENTS AFTER THIS */
- wait_queue_head_t wq;
- refcount_t refs;
- unsigned state;
-
- struct io_failure_record *failrec;
-
-#ifdef CONFIG_BTRFS_DEBUG
- struct list_head leak_list;
-#endif
-};
#define INLINE_EXTENT_BUFFER_PAGES 16
#define MAX_INLINE_EXTENT_BUFFER_SIZE (INLINE_EXTENT_BUFFER_PAGES * PAGE_SIZE)
@@ -259,152 +188,11 @@ typedef struct extent_map *(get_extent_t)(struct btrfs_inode *inode,
u64 start, u64 len,
int create);
-void extent_io_tree_init(struct btrfs_fs_info *fs_info,
- struct extent_io_tree *tree, unsigned int owner,
- void *private_data);
-void extent_io_tree_release(struct extent_io_tree *tree);
int try_release_extent_mapping(struct page *page, gfp_t mask);
int try_release_extent_buffer(struct page *page);
-int lock_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
- struct extent_state **cached);
-static inline int lock_extent(struct extent_io_tree *tree, u64 start, u64 end)
-{
- return lock_extent_bits(tree, start, end, NULL);
-}
-
-int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
int extent_read_full_page(struct extent_io_tree *tree, struct page *page,
get_extent_t *get_extent, int mirror_num);
-int __init extent_io_init(void);
-void __cold extent_io_exit(void);
-
-u64 count_range_bits(struct extent_io_tree *tree,
- u64 *start, u64 search_end,
- u64 max_bytes, unsigned bits, int contig);
-
-void free_extent_state(struct extent_state *state);
-int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, int filled,
- struct extent_state *cached_state);
-int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, struct extent_changeset *changeset);
-int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, int wake, int delete,
- struct extent_state **cached);
-int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, int wake, int delete,
- struct extent_state **cached, gfp_t mask,
- struct extent_changeset *changeset);
-
-static inline int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end)
-{
- return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL);
-}
-
-static inline int unlock_extent_cached(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached)
-{
- return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, cached,
- GFP_NOFS, NULL);
-}
-
-static inline int unlock_extent_cached_atomic(struct extent_io_tree *tree,
- u64 start, u64 end, struct extent_state **cached)
-{
- return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, cached,
- GFP_ATOMIC, NULL);
-}
-
-static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
- u64 end, unsigned bits)
-{
- int wake = 0;
-
- if (bits & EXTENT_LOCKED)
- wake = 1;
-
- return clear_extent_bit(tree, start, end, bits, wake, 0, NULL);
-}
-
-int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, struct extent_changeset *changeset);
-int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, u64 *failed_start,
- struct extent_state **cached_state, gfp_t mask);
-int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits);
-
-static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
- u64 end, unsigned bits)
-{
- return set_extent_bit(tree, start, end, bits, NULL, NULL, GFP_NOFS);
-}
-
-static inline int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state)
-{
- return __clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0,
- cached_state, GFP_NOFS, NULL);
-}
-
-static inline int set_extent_dirty(struct extent_io_tree *tree, u64 start,
- u64 end, gfp_t mask)
-{
- return set_extent_bit(tree, start, end, EXTENT_DIRTY, NULL,
- NULL, mask);
-}
-
-static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached)
-{
- return clear_extent_bit(tree, start, end,
- EXTENT_DIRTY | EXTENT_DELALLOC |
- EXTENT_DO_ACCOUNTING, 0, 0, cached);
-}
-
-int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- unsigned bits, unsigned clear_bits,
- struct extent_state **cached_state);
-
-static inline int set_extent_delalloc(struct extent_io_tree *tree, u64 start,
- u64 end, unsigned int extra_bits,
- struct extent_state **cached_state)
-{
- return set_extent_bit(tree, start, end,
- EXTENT_DELALLOC | EXTENT_UPTODATE | extra_bits,
- NULL, cached_state, GFP_NOFS);
-}
-
-static inline int set_extent_defrag(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state)
-{
- return set_extent_bit(tree, start, end,
- EXTENT_DELALLOC | EXTENT_UPTODATE | EXTENT_DEFRAG,
- NULL, cached_state, GFP_NOFS);
-}
-
-static inline int set_extent_new(struct extent_io_tree *tree, u64 start,
- u64 end)
-{
- return set_extent_bit(tree, start, end, EXTENT_NEW, NULL, NULL,
- GFP_NOFS);
-}
-
-static inline int set_extent_uptodate(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state, gfp_t mask)
-{
- return set_extent_bit(tree, start, end, EXTENT_UPTODATE, NULL,
- cached_state, mask);
-}
-
-int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
- u64 *start_ret, u64 *end_ret, unsigned bits,
- struct extent_state **cached_state);
-void find_first_clear_extent_bit(struct extent_io_tree *tree, u64 start,
- u64 *start_ret, u64 *end_ret, unsigned bits);
-int extent_invalidatepage(struct extent_io_tree *tree,
- struct page *page, unsigned long offset);
int extent_write_full_page(struct page *page, struct writeback_control *wbc);
int extent_write_locked_range(struct inode *inode, u64 start, u64 end,
int mode);
@@ -555,7 +343,4 @@ bool find_lock_delalloc_range(struct inode *inode,
#endif
struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,
u64 start);
-
-int __init extent_state_cache_init(void);
-void __cold extent_state_cache_exit(void);
#endif