Modified: trunk/Source/_javascript_Core/ChangeLog (110873 => 110874)
--- trunk/Source/_javascript_Core/ChangeLog 2012-03-15 19:33:55 UTC (rev 110873)
+++ trunk/Source/_javascript_Core/ChangeLog 2012-03-15 19:54:15 UTC (rev 110874)
@@ -1,3 +1,15 @@
+2012-03-15 Hojong Han <hojong....@samsung.com>
+
+ Linux has madvise enough to support OSAllocator::commit/decommit
+ https://bugs.webkit.org/show_bug.cgi?id=80505
+
+ Reviewed by Geoffrey Garen.
+
+ * wtf/OSAllocatorPosix.cpp:
+ (WTF::OSAllocator::reserveUncommitted):
+ (WTF::OSAllocator::commit):
+ (WTF::OSAllocator::decommit):
+
2012-03-15 Steve Falkenburg <sfal...@apple.com>
Windows build fix.
Modified: trunk/Source/_javascript_Core/wtf/OSAllocatorPosix.cpp (110873 => 110874)
--- trunk/Source/_javascript_Core/wtf/OSAllocatorPosix.cpp 2012-03-15 19:33:55 UTC (rev 110873)
+++ trunk/Source/_javascript_Core/wtf/OSAllocatorPosix.cpp 2012-03-15 19:54:15 UTC (rev 110874)
@@ -39,6 +39,8 @@
void* result = reserveAndCommit(bytes, usage, writable, executable, includesGuardPages);
#if OS(QNX)
posix_madvise(result, bytes, POSIX_MADV_DONTNEED);
+#elif OS(LINUX)
+ madvise(result, bytes, MADV_DONTNEED);
#elif HAVE(MADV_FREE_REUSE)
// To support the "reserve then commit" model, we have to initially decommit.
while (madvise(result, bytes, MADV_FREE_REUSABLE) == -1 && errno == EAGAIN) { }
@@ -124,6 +126,8 @@
{
#if OS(QNX)
posix_madvise(address, bytes, POSIX_MADV_WILLNEED);
+#elif OS(LINUX)
+ madvise(address, bytes, MADV_WILLNEED);
#elif HAVE(MADV_FREE_REUSE)
while (madvise(address, bytes, MADV_FREE_REUSE) == -1 && errno == EAGAIN) { }
#else
@@ -137,6 +141,8 @@
{
#if OS(QNX)
posix_madvise(address, bytes, POSIX_MADV_DONTNEED);
+#elif OS(LINUX)
+ madvise(address, bytes, MADV_DONTNEED);
#elif HAVE(MADV_FREE_REUSE)
while (madvise(address, bytes, MADV_FREE_REUSABLE) == -1 && errno == EAGAIN) { }
#elif HAVE(MADV_FREE)
