s390: add support for transactional memory

Allow user-space processes to use transactional execution (TX).
If the TX facility is available user space programs can use
transactions for fine-grained serialization based on the data
objects that are referenced during a transaction. This is
useful for lockless data structures and speculative compiler
optimizations.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 45ef1a7b08f9..fface87056eb 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -157,6 +157,8 @@ int main(void)
         DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
         DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
         DEFINE(__LC_GMAP, offsetof(struct _lowcore, gmap));
+        DEFINE(__LC_PGM_TDB, offsetof(struct _lowcore, pgm_tdb));
+        DEFINE(__THREAD_trap_tdb, offsetof(struct task_struct, thread.trap_tdb));
         DEFINE(__GMAP_ASCE, offsetof(struct gmap, asce));
 #endif /* CONFIG_32BIT */
         return 0;