Try madvise first before posix_madvise.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1322 2f5784b3-3f2a-0410-8824-cb99058d5e15

2 files changed, 6 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 1877529..f1034d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -145,6 +145,8 @@ Version 8.33 28-April-2013
     of the compiled pattern block, expand the flags field from 16 to 32 bits
     because it was almost full.
 
+39. Try madvise first before posix_madvise.
+
 
 Version 8.32 30-November-2012
 -----------------------------
diff --git a/sljit/sljitUtils.c b/sljit/sljitUtils.c
index 1f023fa..b29b403 100644
--- a/sljit/sljitUtils.c
+++ b/sljit/sljitUtils.c
@@ -315,12 +315,12 @@ SLJIT_API_FUNC_ATTRIBUTE sljit_sw SLJIT_CALL sljit_stack_resize(struct sljit_sta
 	aligned_new_limit = (new_limit + sljit_page_align) & ~sljit_page_align;
 	aligned_old_limit = (stack->limit + sljit_page_align) & ~sljit_page_align;
 	/* If madvise is available, we release the unnecessary space. */
-#if defined(POSIX_MADV_DONTNEED)
-	if (aligned_new_limit < aligned_old_limit)
-		posix_madvise((void*)aligned_new_limit, aligned_old_limit - aligned_new_limit, POSIX_MADV_DONTNEED);
-#elif defined(MADV_DONTNEED)
+#if defined(MADV_DONTNEED)
 	if (aligned_new_limit < aligned_old_limit)
 		madvise((void*)aligned_new_limit, aligned_old_limit - aligned_new_limit, MADV_DONTNEED);
+#elif defined(POSIX_MADV_DONTNEED)
+	if (aligned_new_limit < aligned_old_limit)
+		posix_madvise((void*)aligned_new_limit, aligned_old_limit - aligned_new_limit, POSIX_MADV_DONTNEED);
 #endif
 	stack->limit = new_limit;
 	return 0;