diff options
Diffstat (limited to 'fs/btrfs/extent-io-tree.h')
| -rw-r--r-- | fs/btrfs/extent-io-tree.h | 71 |
1 files changed, 43 insertions, 28 deletions
diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h index 9800a8306368..04083ee5ae6e 100644 --- a/fs/btrfs/extent-io-tree.h +++ b/fs/btrfs/extent-io-tree.h @@ -21,10 +21,24 @@ struct io_failure_record; #define EXTENT_NORESERVE (1U << 11) #define EXTENT_QGROUP_RESERVED (1U << 12) #define EXTENT_CLEAR_DATA_RESV (1U << 13) +/* + * Must be cleared only during ordered extent completion or on error paths if we + * did not manage to submit bios and create the ordered extents for the range. + * Should not be cleared during page release and page invalidation (if there is + * an ordered extent in flight), that is left for the ordered extent completion. + */ #define EXTENT_DELALLOC_NEW (1U << 14) +/* + * When an ordered extent successfully completes for a region marked as a new + * delalloc range, use this flag when clearing a new delalloc range to indicate + * that the VFS' inode number of bytes should be incremented and the inode's new + * delalloc bytes decremented, in an atomic way to prevent races with stat(2). + */ +#define EXTENT_ADD_INODE_BYTES (1U << 15) #define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \ EXTENT_CLEAR_DATA_RESV) -#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING) +#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING | \ + EXTENT_ADD_INODE_BYTES) /* * Redefined bits above which are used only in the device allocation tree, @@ -73,7 +87,7 @@ struct extent_state { /* ADD NEW ELEMENTS AFTER THIS */ wait_queue_head_t wq; refcount_t refs; - unsigned state; + u32 state; struct io_failure_record *failrec; @@ -105,19 +119,18 @@ 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); + u64 max_bytes, u32 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); + u32 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); + u32 bits, struct extent_changeset *changeset); int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, - unsigned bits, int wake, int delete, + u32 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, + u32 bits, int wake, int delete, struct extent_state **cached, gfp_t mask, struct extent_changeset *changeset); @@ -141,7 +154,7 @@ static inline int unlock_extent_cached_atomic(struct extent_io_tree *tree, } static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start, - u64 end, unsigned bits) + u64 end, u32 bits) { int wake = 0; @@ -152,17 +165,19 @@ static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start, } int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end, - unsigned bits, struct extent_changeset *changeset); + u32 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); + 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, - unsigned bits); + u32 bits); static inline int set_extent_bits(struct extent_io_tree *tree, u64 start, - u64 end, unsigned bits) + u64 end, u32 bits) { - return set_extent_bit(tree, start, end, bits, NULL, NULL, GFP_NOFS); + return set_extent_bit(tree, start, end, bits, 0, NULL, NULL, GFP_NOFS, + NULL); } static inline int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, @@ -175,8 +190,8 @@ static inline int clear_extent_uptodate(struct extent_io_tree *tree, u64 start, 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); + return set_extent_bit(tree, start, end, EXTENT_DIRTY, 0, NULL, NULL, + mask, NULL); } static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start, @@ -188,16 +203,16 @@ static inline int clear_extent_dirty(struct extent_io_tree *tree, u64 start, } int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end, - unsigned bits, unsigned clear_bits, + u32 bits, u32 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, + u64 end, u32 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); + 0, NULL, cached_state, GFP_NOFS, NULL); } static inline int set_extent_defrag(struct extent_io_tree *tree, u64 start, @@ -205,30 +220,30 @@ static inline int set_extent_defrag(struct extent_io_tree *tree, u64 start, { return set_extent_bit(tree, start, end, EXTENT_DELALLOC | EXTENT_UPTODATE | EXTENT_DEFRAG, - NULL, cached_state, GFP_NOFS); + 0, NULL, cached_state, GFP_NOFS, NULL); } 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); + return set_extent_bit(tree, start, end, EXTENT_NEW, 0, NULL, NULL, + GFP_NOFS, NULL); } 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); + return set_extent_bit(tree, start, end, EXTENT_UPTODATE, 0, NULL, + cached_state, mask, NULL); } int find_first_extent_bit(struct extent_io_tree *tree, u64 start, - u64 *start_ret, u64 *end_ret, unsigned bits, + u64 *start_ret, u64 *end_ret, u32 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); + 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, unsigned bits); + 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, |