blk_limits_max_hw_sectors9
Set hard and soft limit of max sectors for request
Usage
void blk_limits_max_hw_sectors(struct queue_limits * limits, unsigned int max_hw_sectors);
Arguments
limits
the queue limits
max_hw_sectors
max hardware sectors in the usual 512b unit
Overview
Enables a low level driver to set a hard upper limit, max_hw_sectors, on the size of requests. max_hw_sectors is set by the device driver based upon the combined capabilities of I/O controller and storage device.
max_sectors is a soft limit imposed by the block layer for filesystem type requests. This value can be overridden on a per-device basis in /sys/block/<device>/queue/max_sectors_kb. The soft limit can not exceed max_hw_sectors.
Releases
2 releases since Debian 7 (Wheezy); the text changed 1 time.