diff options
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h index b22f3aba9ca..630ae358e99 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h +++ b/compiler-rt/lib/sanitizer_common/sanitizer_allocator_primary64.h @@ -677,7 +677,10 @@ class SizeClassAllocator64 { // preventing just allocated memory from being released sooner than // necessary and also preventing extraneous ReleaseMemoryPagesToOS calls // for short lived processes. - region->rtoi.last_release_at_ns = NanoTime(); + // Do it only when the feature is turned on, to avoid a potentially + // extraneous syscall. + if (ReleaseToOSIntervalMs() >= 0) + region->rtoi.last_release_at_ns = NanoTime(); } // Do the mmap for the user memory. uptr map_size = kUserMapSize; |
