diff options
Diffstat (limited to 'fs/btrfs/extent_io.h')
| -rw-r--r-- | fs/btrfs/extent_io.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 3e4fad4a909d..c2890bc1fe75 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -2,6 +2,7 @@ #define __EXTENTIO__ #include <linux/rbtree.h> +#include <linux/refcount.h> #include "ulist.h" /* bits for the extent state */ @@ -14,7 +15,7 @@ #define EXTENT_DEFRAG (1U << 6) #define EXTENT_BOUNDARY (1U << 9) #define EXTENT_NODATASUM (1U << 10) -#define EXTENT_DO_ACCOUNTING (1U << 11) +#define EXTENT_CLEAR_META_RESV (1U << 11) #define EXTENT_FIRST_DELALLOC (1U << 12) #define EXTENT_NEED_WAIT (1U << 13) #define EXTENT_DAMAGED (1U << 14) @@ -22,6 +23,8 @@ #define EXTENT_QGROUP_RESERVED (1U << 16) #define EXTENT_CLEAR_DATA_RESV (1U << 17) #define EXTENT_IOBITS (EXTENT_LOCKED | EXTENT_WRITEBACK) +#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \ + EXTENT_CLEAR_DATA_RESV) #define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING | EXTENT_FIRST_DELALLOC) /* @@ -143,7 +146,7 @@ struct extent_state { /* ADD NEW ELEMENTS AFTER THIS */ wait_queue_head_t wq; - atomic_t refs; + refcount_t refs; unsigned state; struct io_failure_record *failrec; @@ -201,12 +204,24 @@ struct extent_buffer { */ struct extent_changeset { /* How many bytes are set/cleared in this operation */ - u64 bytes_changed; + unsigned int bytes_changed; /* Changed ranges */ struct ulist range_changed; }; +static inline void extent_changeset_init(struct extent_changeset *changeset) +{ + changeset->bytes_changed = 0; + ulist_init(&changeset->range_changed); +} + +static inline void extent_changeset_release(struct extent_changeset *changeset) +{ + changeset->bytes_changed = 0; + ulist_release(&changeset->range_changed); +} + static inline void extent_set_compress_type(unsigned long *bio_flags, int compress_type) { |