This flag was introduced in a52d9a8033c4 ("Btrfs: Extent based page
cache code.") and subsequently it's usage effectively was removed by
1edbb734b4e0 ("Btrfs: reduce CPU usage in the extent_state tree") and
f2a97a9dbd86 ("btrfs: remove all unused functions"). Just remove it,
no functional changes.
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
fs/btrfs/extent_io.c | 3 +--
fs/btrfs/extent_io.h | 31 +++++++++++++++----------------
2 files changed, 16 insertions(+), 18 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a958cbd8b11a..d3cd6cb6c1d8 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4289,8 +4289,7 @@ int try_release_extent_mapping(struct page *page, gfp_t mask)
}
if (!test_range_bit(tree, em->start,
extent_map_end(em) - 1,
- EXTENT_LOCKED | EXTENT_WRITEBACK,
- 0, NULL)) {
+ EXTENT_LOCKED, 0, NULL)) {
set_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
&btrfs_inode->runtime_flags);
remove_extent_mapping(map, em);
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 7012ff27da82..0ed7a572673d 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -9,22 +9,21 @@
/* bits for the extent state */
#define EXTENT_DIRTY (1U << 0)
-#define EXTENT_WRITEBACK (1U << 1)
-#define EXTENT_UPTODATE (1U << 2)
-#define EXTENT_LOCKED (1U << 3)
-#define EXTENT_NEW (1U << 4)
-#define EXTENT_DELALLOC (1U << 5)
-#define EXTENT_DEFRAG (1U << 6)
-#define EXTENT_BOUNDARY (1U << 9)
-#define EXTENT_NODATASUM (1U << 10)
-#define EXTENT_CLEAR_META_RESV (1U << 11)
-#define EXTENT_NEED_WAIT (1U << 12)
-#define EXTENT_DAMAGED (1U << 13)
-#define EXTENT_NORESERVE (1U << 14)
-#define EXTENT_QGROUP_RESERVED (1U << 15)
-#define EXTENT_CLEAR_DATA_RESV (1U << 16)
-#define EXTENT_DELALLOC_NEW (1U << 17)
-#define EXTENT_IOBITS (EXTENT_LOCKED | EXTENT_WRITEBACK)
+#define EXTENT_UPTODATE (1U << 1)
+#define EXTENT_LOCKED (1U << 2)
+#define EXTENT_NEW (1U << 3)
+#define EXTENT_DELALLOC (1U << 4)
+#define EXTENT_DEFRAG (1U << 5)
+#define EXTENT_BOUNDARY (1U << 6)
+#define EXTENT_NODATASUM (1U << 7)
+#define EXTENT_CLEAR_META_RESV (1U << 8)
+#define EXTENT_NEED_WAIT (1U << 9)
+#define EXTENT_DAMAGED (1U << 10)
+#define EXTENT_NORESERVE (1U << 11)
+#define EXTENT_QGROUP_RESERVED (1U << 12)
+#define EXTENT_CLEAR_DATA_RESV (1U << 13)
+#define EXTENT_DELALLOC_NEW (1U << 14)
+#define EXTENT_IOBITS (EXTENT_LOCKED)
#define EXTENT_DO_ACCOUNTING (EXTENT_CLEAR_META_RESV | \
EXTENT_CLEAR_DATA_RESV)
#define EXTENT_CTLBITS (EXTENT_DO_ACCOUNTING)
--
2.17.1
