#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,
/* ADD NEW ELEMENTS AFTER THIS */
wait_queue_head_t wq;
refcount_t refs;
- unsigned state;
+ u32 state;
struct io_failure_record *failrec;
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);
}
static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
- u64 end, unsigned bits)
+ u64 end, u32 bits)
{
int wake = 0;
}
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,
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,
}
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,
{
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,
projects / linux-2.6-microblaze.git / blobdiff