K 10
svn:author
V 6
royger
K 8
svn:date
V 27
2018-06-21T15:47:47.060765Z
K 7
svn:log
V 513
xen: check if there are clients waiting in gnttab_end_foreign_access_references

Without a call to check_free_callbacks() clients waiting for grant
references would not be woken up even when there are sufficient grant
references available.

The check was likely left out as a mistake when the function was first
added.

Note that other functions used to free grant references already call
check_free_callbacks.

Submitted by:		pratyush
Reviewed by:		royger
Differential review:	https://reviews.freebsd.org/D15899

END