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-rw-r--r--include/linux/dm-bufio.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/dm-bufio.h b/include/linux/dm-bufio.h
index 90bd558a17f5..15d9e15ca830 100644
--- a/include/linux/dm-bufio.h
+++ b/include/linux/dm-bufio.h
@@ -18,13 +18,19 @@ struct dm_bufio_client;
struct dm_buffer;
/*
+ * Flags for dm_bufio_client_create
+ */
+#define DM_BUFIO_CLIENT_NO_SLEEP 0x1
+
+/*
* Create a buffered IO cache on a given device
*/
struct dm_bufio_client *
dm_bufio_client_create(struct block_device *bdev, unsigned block_size,
unsigned reserved_buffers, unsigned aux_size,
void (*alloc_callback)(struct dm_buffer *),
- void (*write_callback)(struct dm_buffer *));
+ void (*write_callback)(struct dm_buffer *),
+ unsigned int flags);
/*
* Release a buffered IO cache.