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-rw-r--r--modules/libjar/nsZipArchive.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/modules/libjar/nsZipArchive.cpp b/modules/libjar/nsZipArchive.cpp
index 429de1011..841503ebf 100644
--- a/modules/libjar/nsZipArchive.cpp
+++ b/modules/libjar/nsZipArchive.cpp
@@ -688,7 +688,9 @@ MOZ_WIN_MEM_TRY_BEGIN
// Success means optimized jar layout from bug 559961 is in effect
uint32_t readaheadLength = xtolong(startp);
if (readaheadLength) {
-#if defined(XP_UNIX)
+#ifdef XP_SOLARIS
+ posix_madvise(const_cast<uint8_t*>(startp), readaheadLength, POSIX_MADV_WILLNEED);
+#elif defined(XP_UNIX)
madvise(const_cast<uint8_t*>(startp), readaheadLength, MADV_WILLNEED);
#elif defined(XP_WIN)
if (aFd) {