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Diffstat (limited to 'fs/btrfs/extent_io.h')
-rw-r--r--fs/btrfs/extent_io.h79
1 files changed, 48 insertions, 31 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index faffa28ba707..b77d84909863 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __EXTENTIO__
#define __EXTENTIO__
@@ -33,7 +34,6 @@
* type for this bio
*/
#define EXTENT_BIO_COMPRESSED 1
-#define EXTENT_BIO_TREE_LOG 2
#define EXTENT_BIO_FLAG_SHIFT 16
/* these are bit numbers for test/set bit */
@@ -83,8 +83,8 @@ static inline int le_test_bit(int nr, const u8 *addr)
return 1U & (addr[BIT_BYTE(nr)] >> (nr & (BITS_PER_BYTE-1)));
}
-extern void le_bitmap_set(u8 *map, unsigned int start, int len);
-extern void le_bitmap_clear(u8 *map, unsigned int start, int len);
+void le_bitmap_set(u8 *map, unsigned int start, int len);
+void le_bitmap_clear(u8 *map, unsigned int start, int len);
struct extent_state;
struct btrfs_root;
@@ -95,6 +95,13 @@ struct io_failure_record;
typedef blk_status_t (extent_submit_bio_hook_t)(void *private_data, struct bio *bio,
int mirror_num, unsigned long bio_flags,
u64 bio_offset);
+
+typedef blk_status_t (extent_submit_bio_start_t)(void *private_data,
+ struct bio *bio, u64 bio_offset);
+
+typedef blk_status_t (extent_submit_bio_done_t)(void *private_data,
+ struct bio *bio, int mirror_num);
+
struct extent_io_ops {
/*
* The following callbacks must be allways defined, the function
@@ -116,7 +123,8 @@ struct extent_io_ops {
*/
int (*fill_delalloc)(void *private_data, struct page *locked_page,
u64 start, u64 end, int *page_started,
- unsigned long *nr_written);
+ unsigned long *nr_written,
+ struct writeback_control *wbc);
int (*writepage_start_hook)(struct page *page, u64 start, u64 end);
void (*writepage_end_io_hook)(struct page *page, u64 start, u64 end,
@@ -285,7 +293,7 @@ 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 extent_io_exit(void);
+void __cold extent_io_exit(void);
u64 count_range_bits(struct extent_io_tree *tree,
u64 *start, u64 search_end,
@@ -299,19 +307,29 @@ 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, gfp_t mask);
+ 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,
- GFP_NOFS);
+ 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, gfp_t mask)
+ 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,
- mask);
+ 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,
@@ -322,8 +340,7 @@ static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
if (bits & EXTENT_LOCKED)
wake = 1;
- return clear_extent_bit(tree, start, end, bits, wake, 0, NULL,
- GFP_NOFS);
+ 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,
@@ -339,10 +356,10 @@ static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
}
static inline int clear_extent_uptodate(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state, gfp_t mask)
+ u64 end, struct extent_state **cached_state)
{
- return clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, 0,
- cached_state, mask);
+ 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,
@@ -357,7 +374,7 @@ 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, NULL, GFP_NOFS);
+ EXTENT_DO_ACCOUNTING, 0, 0, NULL);
}
int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
@@ -365,10 +382,11 @@ int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached_state);
static inline int set_extent_delalloc(struct extent_io_tree *tree, u64 start,
- u64 end, struct extent_state **cached_state)
+ u64 end, unsigned int extra_bits,
+ struct extent_state **cached_state)
{
return set_extent_bit(tree, start, end,
- EXTENT_DELALLOC | EXTENT_UPTODATE,
+ EXTENT_DELALLOC | EXTENT_UPTODATE | extra_bits,
NULL, cached_state, GFP_NOFS);
}
@@ -399,24 +417,19 @@ int find_first_extent_bit(struct extent_io_tree *tree, u64 start,
struct extent_state **cached_state);
int extent_invalidatepage(struct extent_io_tree *tree,
struct page *page, unsigned long offset);
-int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
- get_extent_t *get_extent,
- struct writeback_control *wbc);
-int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
- u64 start, u64 end, get_extent_t *get_extent,
+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);
int extent_writepages(struct extent_io_tree *tree,
struct address_space *mapping,
- get_extent_t *get_extent,
struct writeback_control *wbc);
int btree_write_cache_pages(struct address_space *mapping,
struct writeback_control *wbc);
int extent_readpages(struct extent_io_tree *tree,
struct address_space *mapping,
- struct list_head *pages, unsigned nr_pages,
- get_extent_t get_extent);
+ struct list_head *pages, unsigned nr_pages);
int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
- __u64 start, __u64 len, get_extent_t *get_extent);
+ __u64 start, __u64 len);
void set_page_extent_mapped(struct page *page);
struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info,
@@ -435,7 +448,7 @@ void free_extent_buffer_stale(struct extent_buffer *eb);
#define WAIT_PAGE_LOCK 2
int read_extent_buffer_pages(struct extent_io_tree *tree,
struct extent_buffer *eb, int wait,
- get_extent_t *get_extent, int mirror_num);
+ int mirror_num);
void wait_on_extent_buffer_writeback(struct extent_buffer *eb);
static inline unsigned long num_extent_pages(u64 start, u64 len)
@@ -449,6 +462,11 @@ static inline void extent_buffer_get(struct extent_buffer *eb)
atomic_inc(&eb->refs);
}
+static inline int extent_buffer_uptodate(struct extent_buffer *eb)
+{
+ return test_bit(EXTENT_BUFFER_UPTODATE, &eb->bflags);
+}
+
int memcmp_extent_buffer(const struct extent_buffer *eb, const void *ptrv,
unsigned long start, unsigned long len);
void read_extent_buffer(const struct extent_buffer *eb, void *dst,
@@ -483,7 +501,6 @@ void clear_extent_buffer_dirty(struct extent_buffer *eb);
int set_extent_buffer_dirty(struct extent_buffer *eb);
void set_extent_buffer_uptodate(struct extent_buffer *eb);
void clear_extent_buffer_uptodate(struct extent_buffer *eb);
-int extent_buffer_uptodate(struct extent_buffer *eb);
int extent_buffer_under_io(struct extent_buffer *eb);
int map_private_extent_buffer(const struct extent_buffer *eb,
unsigned long offset, unsigned long min_len,
@@ -538,7 +555,7 @@ void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start,
u64 end);
int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end,
struct io_failure_record **failrec_ret);
-bool btrfs_check_repairable(struct inode *inode, struct bio *failed_bio,
+bool btrfs_check_repairable(struct inode *inode, unsigned failed_bio_pages,
struct io_failure_record *failrec, int fail_mirror);
struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio,
struct io_failure_record *failrec,
generated by cgit (git 2.34.1) at 2024-05-23 16:48:17 +0000