Date: Sun, 18 Feb 2018 09:10:14 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r329514 - head/sys/compat/linuxkpi/common/include/linux Message-ID: <201802180910.w1I9AE6w022051@repo.freebsd.org>
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Author: hselasky Date: Sun Feb 18 09:10:14 2018 New Revision: 329514 URL: https://svnweb.freebsd.org/changeset/base/329514 Log: Implement the rcu_dereference_raw() function macro. Make sure all RCU dereferencing use the READ_ONCE() function macro. MFC after: 1 week Submitted by: Johannes Lundberg <johalun0@gmail.com> Sponsored by: Mellanox Technologies Sponsored by: Limelight Networks 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 Sun Feb 18 08:58:20 2018 (r329513) +++ head/sys/compat/linuxkpi/common/include/linux/rcupdate.h Sun Feb 18 09:10:14 2018 (r329514) @@ -74,13 +74,16 @@ } while (0) #define rcu_access_pointer(p) \ - ((__typeof(*p) *)(READ_ONCE(p))) + ((__typeof(*p) *)READ_ONCE(p)) #define rcu_dereference_protected(p, c) \ - ((__typeof(*p) *)(p)) + ((__typeof(*p) *)READ_ONCE(p)) #define rcu_dereference(p) \ rcu_dereference_protected(p, 0) + +#define rcu_dereference_raw(p) \ + ((__typeof(*p) *)READ_ONCE(p)) #define rcu_pointer_handoff(p) (p)
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