Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h
new file mode 100644
index 0000000..9800a83
--- /dev/null
+++ b/fs/btrfs/extent-io-tree.h
@@ -0,0 +1,252 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef BTRFS_EXTENT_IO_TREE_H
+#define BTRFS_EXTENT_IO_TREE_H
+
+struct extent_changeset;
+struct io_failure_record;
+
+/* 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
+#define CHUNK_STATE_MASK (CHUNK_ALLOCATED | \
+ CHUNK_TRIMMED)
+
+enum {
+ IO_TREE_FS_PINNED_EXTENTS,
+ 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,
+ IO_TREE_INODE_FILE_EXTENT,
+ IO_TREE_LOG_CSUM_RANGE,
+ IO_TREE_SELFTEST,
+ IO_TREE_DEVICE_ALLOC_STATE,
+};
+
+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;
+};
+
+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
+};
+
+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 try_lock_extent(struct extent_io_tree *tree, u64 start, u64 end);
+
+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 find_contiguous_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);
+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);
+
+#endif /* BTRFS_EXTENT_IO_TREE_H */