It will be used in a future patch that will require modifying an
extent_io_tree struct under a spinlock.
Signed-off-by: Nikolay Borisov <nborisov@xxxxxxxx>
---
fs/btrfs/extent_io.c | 7 +++++++
fs/btrfs/extent_io.h | 2 ++
2 files changed, 9 insertions(+)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index eec64436d488..4bf17d4c0819 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1366,6 +1366,13 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
changeset);
}
+int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
+ unsigned bits)
+{
+ return __set_extent_bit(tree, start, end, bits, 0, NULL, NULL,
+ GFP_NOWAIT, NULL);
+}
+
int clear_extent_bit(struct extent_io_tree *tree, u64 start, u64 end,
unsigned bits, int wake, int delete,
struct extent_state **cached)
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 0fda249e5982..c23ce4df88f3 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -329,6 +329,8 @@ int set_record_extent_bits(struct extent_io_tree *tree, u64 start, u64 end,
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);
+int set_extent_bits_nowait(struct extent_io_tree *tree, u64 start, u64 end,
+ unsigned bits);
static inline int set_extent_bits(struct extent_io_tree *tree, u64 start,
u64 end, unsigned bits)
--
2.17.1
