[linux-yocto] [PATCH 23/46] xen/grant-table: add gnttab_try_end_foreign_access()

From: Juergen Gross commit 72103f08cde854334ec48d30f33d58a642d68344 from https://github.com/altera-opensource/linux-socfpga.git [upstream commit 6b1775f26a2da2b05a6dc8ec2b5d14e9a4701a1a] Add a new grant table function gnttab_try_end_foreign_access(), which will remove and free a grant if it is

[linux-yocto] [PATCH 23/46] xen/grant-table: add gnttab_try_end_foreign_access()

From: Juergen Gross commit 72103f08cde854334ec48d30f33d58a642d68344 from https://github.com/altera-opensource/linux-socfpga.git [upstream commit 6b1775f26a2da2b05a6dc8ec2b5d14e9a4701a1a] Add a new grant table function gnttab_try_end_foreign_access(), which will remove and free a grant if it is