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Diffstat (limited to 'fs/btrfs/extent-io-tree.h')
-rw-r--r--fs/btrfs/extent-io-tree.h28
1 files changed, 18 insertions, 10 deletions
diff --git a/fs/btrfs/extent-io-tree.h b/fs/btrfs/extent-io-tree.h
index 913d83a2eee7..bcc8f6b05c03 100644
--- a/fs/btrfs/extent-io-tree.h
+++ b/fs/btrfs/extent-io-tree.h
@@ -35,10 +35,18 @@ struct io_failure_record;
* delalloc bytes decremented, in an atomic way to prevent races with stat(2).
*/
#define EXTENT_ADD_INODE_BYTES (1U << 15)
+
+/*
+ * Set during truncate when we're clearing an entire range and we just want the
+ * extent states to go away.
+ */
+#define EXTENT_CLEAR_ALL_BITS (1U << 16)
+
#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \
EXTENT_CLEAR_DATA_RESV)
#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING | \
- EXTENT_ADD_INODE_BYTES)
+ EXTENT_ADD_INODE_BYTES | \
+ EXTENT_CLEAR_ALL_BITS)
/*
* Redefined bits above which are used only in the device allocation tree,
@@ -114,35 +122,35 @@ int test_range_bit(struct extent_io_tree *tree, u64 start, u64 end,
int clear_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
u32 bits, struct extent_changeset *changeset);
int __clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
- u32 bits, int delete, struct extent_state **cached,
- gfp_t mask, struct extent_changeset *changeset);
+ u32 bits, struct extent_state **cached, gfp_t mask,
+ struct extent_changeset *changeset);
static inline int clear_extent_bit(struct extent_io_tree *tree, u64 start,
- u64 end, u32 bits, int delete,
+ u64 end, u32 bits,
struct extent_state **cached)
{
- return __clear_extent_bit(tree, start, end, bits, delete, cached,
+ return __clear_extent_bit(tree, start, end, bits, cached,
GFP_NOFS, NULL);
}
static inline int unlock_extent(struct extent_io_tree *tree, u64 start, u64 end,
struct extent_state **cached)
{
- return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 0, cached,
+ return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, cached,
GFP_NOFS, NULL);
}
static inline int unlock_extent_atomic(struct extent_io_tree *tree, u64 start,
u64 end, struct extent_state **cached)
{
- return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, 0, cached,
+ return __clear_extent_bit(tree, start, end, EXTENT_LOCKED, cached,
GFP_ATOMIC, NULL);
}
static inline int clear_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, u32 bits)
{
- return clear_extent_bit(tree, start, end, bits, 0, NULL);
+ return clear_extent_bit(tree, start, end, bits, NULL);
}
int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
@@ -165,7 +173,7 @@ 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)
{
- return __clear_extent_bit(tree, start, end, EXTENT_UPTODATE, 0,
+ return __clear_extent_bit(tree, start, end, EXTENT_UPTODATE,
cached_state, GFP_NOFS, NULL);
}
@@ -180,7 +188,7 @@ 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, cached);
+ EXTENT_DO_ACCOUNTING, cached);
}
int convert_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,