block: add support for write hints in a bio

[mirror_ubuntu-bionic-kernel.git] / include / linux / blkdev.h

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index bf2157141d53e071808c1189b06cca9f9bc03727..0eebd3bcfd8581a37b538970b851df6766fd51b2 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -225,6 +225,8 @@ struct request {
 
        unsigned int extra_len; /* length of alignment and padding */
 
+       unsigned short write_hint;
+
        unsigned long deadline;
        struct list_head timeout_list;