kernel/EntryCache: Always resize if needed in _AddEntryToCurrentGeneration.

Otherwise, the only place we resize the table is Remove(), and if
that doesn't get called (because no files are being deleted) then
we will rarely, if ever, resize the table, leading to performance
issues.

Fixes a performance regression easily seen by running "grep -R".

src/system/kernel/fs/EntryCache.cpp

@@ -243,6 +243,10 @@ EntryCache::_AddEntryToCurrentGeneration(EntryCacheEntry* entry, bool move)
 	readLocker.Unlock();
 	WriteLocker writeLocker(fLock);
 
+	// Resize the table if needed, no matter what. (The only other place it can
+	// be resized is Remove(), so this is important.)
+	fEntries.ResizeIfNeeded();
+
 	if (entry->index == kEntryRemoved) {
 		// the entry has been removed in the meantime
 		writeLocker.Unlock();
@@ -256,8 +260,6 @@ EntryCache::_AddEntryToCurrentGeneration(EntryCacheEntry* entry, bool move)
 		fGenerations[fCurrentGeneration].entries[index] = entry;
 		entry->generation = fCurrentGeneration;
 		entry->index = index;
-
-		fEntries.ResizeIfNeeded();
 		return true;
 	}