centos man page for disk_block_events

DISK_BLOCK_EVENTS(9)						   Block Devices					      DISK_BLOCK_EVENTS(9)

NAME
       disk_block_events - block and flush disk event checking

SYNOPSIS
       void disk_block_events(struct gendisk * disk);

ARGUMENTS
       disk
	   disk to block events for

DESCRIPTION
       On return from this function, it is guaranteed that event checking isn't in progress and won't happen until unblocked by
       disk_unblock_events. Events blocking is counted and the actual unblocking happens after the matching number of unblocks are done.

       Note that this intentionally does not block event checking from disk_clear_events.

CONTEXT
       Might sleep.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						      DISK_BLOCK_EVENTS(9)