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-rw-r--r--indra/newview/lltexturecache.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/indra/newview/lltexturecache.cpp b/indra/newview/lltexturecache.cpp
index 845e71378a..051c189013 100644
--- a/indra/newview/lltexturecache.cpp
+++ b/indra/newview/lltexturecache.cpp
@@ -934,6 +934,8 @@ void LLTextureCache::setDirNames(ELLPath location)
void LLTextureCache::purgeCache(ELLPath location)
{
+ LLMutexLock lock(&mHeaderMutex);
+
if (!mReadOnly)
{
setDirNames(location);