From: Martin Michaelis <code@mgjm.de>
+commit 7deba791ad495ce1d7921683f4f7d1190fa210d1 upstream.
+
Incrementally consumed buffer rings are generally fully consumed, but
it's quite possible that the application has a minimum size it needs to
meet to avoid truncation. Currently that minimum limit is 1 byte, but
[axboe: write commit message, change io_buffer_list member name]
Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-(cherry picked from commit 7deba791ad495ce1d7921683f4f7d1190fa210d1)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/uapi/linux/io_uring.h | 3 ++-