diff options
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 77 |
1 files changed, 24 insertions, 53 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 0399cf8e3c32..7929f054dda3 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -7,15 +7,9 @@ #include <linux/refcount.h> #include <linux/fiemap.h> #include <linux/btrfs_tree.h> +#include "compression.h" #include "ulist.h" -/* - * flags for bio submission. The high bits indicate the compression - * type for this bio - */ -#define EXTENT_BIO_COMPRESSED 1 -#define EXTENT_BIO_FLAG_SHIFT 16 - enum { EXTENT_BUFFER_UPTODATE, EXTENT_BUFFER_DIRTY, @@ -32,7 +26,6 @@ enum { /* write IO error */ EXTENT_BUFFER_WRITE_ERR, EXTENT_BUFFER_NO_CHECK, - EXTENT_BUFFER_ZONE_FINISH, }; /* these are flags for __process_pages_contig */ @@ -64,16 +57,19 @@ enum { #define BITMAP_LAST_BYTE_MASK(nbits) \ (BYTE_MASK >> (-(nbits) & (BITS_PER_BYTE - 1))) +struct btrfs_bio; struct btrfs_root; struct btrfs_inode; -struct btrfs_io_bio; struct btrfs_fs_info; struct io_failure_record; struct extent_io_tree; -typedef blk_status_t (submit_bio_hook_t)(struct inode *inode, struct bio *bio, +int __init extent_buffer_init_cachep(void); +void __cold extent_buffer_free_cachep(void); + +typedef void (submit_bio_hook_t)(struct inode *inode, struct bio *bio, int mirror_num, - unsigned long bio_flags); + enum btrfs_compression_type compress_type); typedef blk_status_t (extent_submit_bio_start_t)(struct inode *inode, struct bio *bio, u64 dio_file_offset); @@ -103,22 +99,11 @@ struct extent_buffer { }; /* - * Structure to record info about the bio being assembled, and other info like - * how many bytes are there before stripe/ordered extent boundary. - */ -struct btrfs_bio_ctrl { - struct bio *bio; - unsigned long bio_flags; - u32 len_to_stripe_boundary; - u32 len_to_oe_boundary; -}; - -/* * Structure to record how many bytes and which ranges are set/cleared */ struct extent_changeset { /* How many bytes are set/cleared in this operation */ - unsigned int bytes_changed; + u64 bytes_changed; /* Changed ranges */ struct ulist range_changed; @@ -158,32 +143,12 @@ static inline void extent_changeset_free(struct extent_changeset *changeset) kfree(changeset); } -static inline void extent_set_compress_type(unsigned long *bio_flags, - int compress_type) -{ - *bio_flags |= compress_type << EXTENT_BIO_FLAG_SHIFT; -} - -static inline int extent_compress_type(unsigned long bio_flags) -{ - return bio_flags >> EXTENT_BIO_FLAG_SHIFT; -} - struct extent_map_tree; -typedef struct extent_map *(get_extent_t)(struct btrfs_inode *inode, - struct page *page, size_t pg_offset, - u64 start, u64 len); - int try_release_extent_mapping(struct page *page, gfp_t mask); int try_release_extent_buffer(struct page *page); -int __must_check submit_one_bio(struct bio *bio, int mirror_num, - unsigned long bio_flags); -int btrfs_do_readpage(struct page *page, struct extent_map **em_cached, - struct btrfs_bio_ctrl *bio_ctrl, - unsigned int read_flags, u64 *prev_em_start); -int extent_write_full_page(struct page *page, struct writeback_control *wbc); +int btrfs_read_folio(struct file *file, struct folio *folio); int extent_write_locked_range(struct inode *inode, u64 start, u64 end); int extent_writepages(struct address_space *mapping, struct writeback_control *wbc); @@ -277,9 +242,10 @@ void extent_range_redirty_for_io(struct inode *inode, u64 start, u64 end); void extent_clear_unlock_delalloc(struct btrfs_inode *inode, u64 start, u64 end, struct page *locked_page, u32 bits_to_clear, unsigned long page_ops); -struct bio *btrfs_bio_alloc(unsigned int nr_iovecs); -struct bio *btrfs_bio_clone(struct bio *bio); -struct bio *btrfs_bio_clone_partial(struct bio *orig, u64 offset, u64 size); +int extent_invalidate_folio(struct extent_io_tree *tree, + struct folio *folio, size_t offset); + +int btrfs_alloc_page_array(unsigned int nr_pages, struct page **page_array); void end_extent_writepage(struct page *page, int err, u64 start, u64 end); int btrfs_repair_eb_io_failure(const struct extent_buffer *eb, int mirror_num); @@ -293,20 +259,25 @@ int btrfs_repair_eb_io_failure(const struct extent_buffer *eb, int mirror_num); * bio end_io callback is called to indicate things have failed. */ struct io_failure_record { + /* Use rb_simple_node for search/insert */ + struct { + struct rb_node rb_node; + u64 bytenr; + }; struct page *page; - u64 start; u64 len; u64 logical; - unsigned long bio_flags; int this_mirror; int failed_mirror; + int num_copies; }; -int btrfs_repair_one_sector(struct inode *inode, - struct bio *failed_bio, u32 bio_offset, - struct page *page, unsigned int pgoff, - u64 start, int failed_mirror, +int btrfs_repair_one_sector(struct inode *inode, struct btrfs_bio *failed_bbio, + u32 bio_offset, struct page *page, unsigned int pgoff, submit_bio_hook_t *submit_bio_hook); +void btrfs_free_io_failure_record(struct btrfs_inode *inode, u64 start, u64 end); +int btrfs_clean_io_failure(struct btrfs_inode *inode, u64 start, + struct page *page, unsigned int pg_offset); #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS bool find_lock_delalloc_range(struct inode *inode, |