Author: manu Date: Wed May 27 10:01:30 2020 New Revision: 361550 URL: https://svnweb.freebsd.org/changeset/base/361550
Log: linuxkpi: Add rcu_swap_protected This macros swap an rcu pointer with a normal pointer. The condition only seems to be used for debug/warning under linux, ignore for now. Sponsored-by: The FreeBSD Foundation Reviewed by: hselasky Differential Revision: https://reviews.freebsd.org/D24954 Modified: head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Modified: head/sys/compat/linuxkpi/common/include/linux/rcupdate.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Wed May 27 09:31:50 2020 (r361549) +++ head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Wed May 27 10:01:30 2020 (r361550) @@ -97,6 +97,12 @@ (uintptr_t)(v)); \ } while (0) +#define rcu_swap_protected(rcu, ptr, c) do { \ + typeof(ptr) p = rcu_dereference_protected(rcu, c); \ + rcu_assign_pointer(rcu, ptr); \ + (ptr) = p; \ +} while (0) + /* prototypes */ extern void linux_call_rcu(unsigned type, struct rcu_head *ptr, rcu_callback_t func); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
