mempool: reduce default RSEQ_PERCPU_STRIDE to 64kB on 64-bit

aarch64 has issues with mmap() of 16MB * 1000 cpus (ENOMEM).

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: If22aab4f9afacaf9bdf0318c8876486cdda2ec25

diff --git a/include/rseq/mempool.h b/include/rseq/mempool.h
index 59457593bc27cf70a3a52d4d857f71556f6eab30..92fa698aed9ac61c002b92cfd08fbf2062ca6974 100644 (file)
--- a/include/rseq/mempool.h
+++ b/include/rseq/mempool.h
@@ -35,11 +35,7 @@ extern "C" {
  * - rseq_percpu_ptr().
  * - rseq_percpu_free(),
  */
-#if RSEQ_BITS_PER_LONG == 64
-# define RSEQ_PERCPU_STRIDE    (1U << 24)      /* 64-bit stride: 16MB */
-#else
-# define RSEQ_PERCPU_STRIDE    (1U << 16)      /* 32-bit stride: 64kB */
-#endif
+#define RSEQ_PERCPU_STRIDE     (1U << 16)      /* stride: 64kB */
 
 /*
  * Tag pointers returned by: