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-rw-r--r--fs/btrfs/extent-io-tree.h126
1 files changed, 49 insertions, 77 deletions
diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h
index 04083ee5ae6e..a855f40dd61d 100644
--- a/fs/btrfs/extent-io-tree.h
+++ b/fs/btrfs/extent-io-tree.h
@@ -17,7 +17,6 @@ struct io_failure_record;
#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)
@@ -35,10 +34,18 @@ struct io_failure_record;
* delalloc bytes decremented, in an atomic way to prevent races with stat(2).
*/
#define EXTENT_ADD_INODE_BYTES (1U << 15)
+
+/*
+ * Set during truncate when we're clearing an entire range and we just want the
+ * extent states to go away.
+ */
+#define EXTENT_CLEAR_ALL_BITS (1U << 16)
+
#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \
EXTENT_CLEAR_DATA_RESV)
#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING | \
- EXTENT_ADD_INODE_BYTES)
+ EXTENT_ADD_INODE_BYTES | \
+ EXTENT_CLEAR_ALL_BITS)
/*
* Redefined bits above which are used only in the device allocation tree,
@@ -56,7 +63,6 @@ enum {
IO_TREE_FS_EXCLUDED_EXTENTS,
IO_TREE_BTREE_INODE_IO,
IO_TREE_INODE_IO,
- IO_TREE_INODE_IO_FAILURE,
IO_TREE_RELOC_BLOCKS,
IO_TREE_TRANS_DIRTY_PAGES,
IO_TREE_ROOT_DIRTY_LOG_PAGES,
@@ -70,8 +76,6 @@ 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;
@@ -89,33 +93,23 @@ struct extent_state {
refcount_t refs;
u32 state;
- struct io_failure_record *failrec;
-
#ifdef CONFIG_BTRFS_DEBUG
struct list_head leak_list;
#endif
};
-int __init extent_state_cache_init(void);
-void __cold extent_state_cache_exit(void);
-
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 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 lock_extent(struct extent_io_tree *tree, u64 start, u64 end,
+ struct extent_state **cached);
int try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
-int __init extent_io_init(void);
-void __cold extent_io_exit(void);
+int __init extent_state_init_cachep(void);
+void __cold extent_state_free_cachep(void);
u64 count_range_bits(struct extent_io_tree *tree,
u64 *start, u64 search_end,
@@ -126,72 +120,66 @@ int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
u32 bits, int filled, struct extent_state *cached_state);
int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
u32 bits, struct extent_changeset *changeset);
-int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- u32 bits, int wake, int delete,
- struct extent_state **cached);
int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- u32 bits, int wake, int delete,
- struct extent_state **cached, gfp_t mask,
- struct extent_changeset *changeset);
+ u32 bits, 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)
+static inline int clear_extent_bit(struct extent_io_tree *tree, u64 start,
+ u64 end, u32 bits,
+ struct extent_state **cached)
{
- return clear_extent_bit(tree, start, end, EXTENT_LOCKED, 1, 0, NULL);
+ return __clear_extent_bit(tree, start, end, bits, cached,
+ GFP_NOFS, NULL);
}
-static inline int unlock_extent_cached(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached)
+static inline int unlock_extent(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);
+ return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, cached,
+ GFP_NOFS, NULL);
}
-static inline int unlock_extent_cached_atomic(struct extent_io_tree *tree,
- u64 start, u64 end, struct extent_state **cached)
+static inline int unlock_extent_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);
+ return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, cached,
+ GFP_ATOMIC, NULL);
}
static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, u32 bits)
{
- int wake = 0;
-
- if (bits & EXTENT_LOCKED)
- wake = 1;
-
- return clear_extent_bit(tree, start, end, bits, wake, 0, NULL);
+ return clear_extent_bit(tree, start, end, bits, NULL);
}
int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
u32 bits, struct extent_changeset *changeset);
int set_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- u32 bits, unsigned exclusive_bits, u64 *failed_start,
- struct extent_state **cached_state, gfp_t mask,
- struct extent_changeset *changeset);
-int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
- u32 bits);
+ u32 bits, struct extent_state **cached_state, gfp_t mask);
+
+static inline int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start,
+ u64 end, u32 bits)
+{
+ return set_extent_bit(tree, start, end, bits, NULL, GFP_NOWAIT);
+}
static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, u32 bits)
{
- return set_extent_bit(tree, start, end, bits, 0, NULL, NULL, GFP_NOFS,
- NULL);
+ return set_extent_bit(tree, start, end, bits, 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);
+ return __clear_extent_bit(tree, start, end, EXTENT_UPTODATE,
+ 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, 0, NULL, NULL,
- mask, NULL);
+ return set_extent_bit(tree, start, end, EXTENT_DIRTY, NULL, mask);
}
static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start,
@@ -199,7 +187,7 @@ static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start,
{
return clear_extent_bit(tree, start, end,
EXTENT_DIRTY | EXTENT_DELALLOC |
- EXTENT_DO_ACCOUNTING, 0, 0, cached);
+ EXTENT_DO_ACCOUNTING, cached);
}
int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
@@ -211,30 +199,29 @@ static inline int set_extent_delalloc(struct extent_io_tree *tree, u64 start,
struct extent_state **cached_state)
{
return set_extent_bit(tree, start, end,
- EXTENT_DELALLOC | EXTENT_UPTODATE | extra_bits,
- 0, NULL, cached_state, GFP_NOFS, NULL);
+ EXTENT_DELALLOC | extra_bits,
+ 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,
- 0, NULL, cached_state, GFP_NOFS, NULL);
+ EXTENT_DELALLOC | EXTENT_DEFRAG,
+ 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, 0, NULL, NULL,
- GFP_NOFS, NULL);
+ return set_extent_bit(tree, start, end, EXTENT_NEW, 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, 0, NULL,
- cached_state, mask, NULL);
+ return set_extent_bit(tree, start, end, EXTENT_UPTODATE,
+ cached_state, mask);
}
int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
@@ -244,24 +231,9 @@ void find_first_clear_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, u32 bits);
int find_contiguous_extent_bit(struct extent_io_tree *tree, u64 start,
u64 *start_ret, u64 *end_ret, u32 bits);
-int extent_invalidatepage(struct extent_io_tree *tree,
- struct page *page, unsigned long offset);
bool btrfs_find_delalloc_range(struct extent_io_tree *tree, u64 *start,
u64 *end, u64 max_bytes,
struct extent_state **cached_state);
-
-/* This should be reworked in the future and put elsewhere. */
-struct io_failure_record *get_state_failrec(struct extent_io_tree *tree, u64 start);
-int set_state_failrec(struct extent_io_tree *tree, u64 start,
- struct io_failure_record *failrec);
-void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start,
- u64 end);
-int free_io_failure(struct extent_io_tree *failure_tree,
- struct extent_io_tree *io_tree,
- struct io_failure_record *rec);
-int clean_io_failure(struct btrfs_fs_info *fs_info,
- struct extent_io_tree *failure_tree,
- struct extent_io_tree *io_tree, u64 start,
- struct page *page, u64 ino, unsigned int pg_offset);
+void wait_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, u32 bits);
#endif /* BTRFS_EXTENT_IO_TREE_H */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.