V2: Added inode locking as appropriate when setting i_flags This set intends to recreate block polling (now HIPRI) behavior that was present in 4.5, where all IO on a queue could be selected to use block polling behavior. The set allows a block device file to subscribe to block polling on a block device granularity, rather than a per-queue granularity. There have been few-to-no arguments in support of the per-queue, always-poll functionality that 4.5 offered, moreso in favor of enabling polling on the entire block device (or indivual IOs as 4.6 offers). I've been made aware that streams and ioprio may supercede this functionality in the future, but I'm hoping this is an acceptable stopgap in the meantime. This set applies against 4.6-rc7 as well as Jens' for-4.7/core (I've also been made aware that it may not apply cleanly to 4.7 after several DAX changes) Jon Derrick (3): block: allow other bd i_node flags when DAX is disabled block: add helper for setting and clearing S_DAX on inode block: Introduce S_HIPRI inode flag block/ioctl.c | 43 +++++++++++++++++++++++++++++++++++++++++++ fs/block_dev.c | 23 +++++++++++++++++++---- include/linux/fs.h | 2 ++ include/uapi/linux/fs.h | 2 ++ 4 files changed, 66 insertions(+), 4 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
