From: Adam Manzanares <adam.manzana...@wdc.com> This patchset interprets the aio_reqprio field of an iocb as a per-command value iff the RWF_IOPRIO flag is set on the iocb. This feature is implemented for a block device, but could also be leveraged by any consumers of the iocb.
See the following link for performance implications on a SATA HDD: https://lkml.org/lkml/2016/12/6/495 Adam Manzanares (2): fs: add RWF_IOPRIO fs: Add aio priority support for block_dev fs/aio.c | 9 +++++++++ fs/block_dev.c | 1 + include/linux/fs.h | 4 ++++ include/uapi/linux/fs.h | 5 ++++- 4 files changed, 18 insertions(+), 1 deletion(-) -- 2.15.1
