fat12_entry_lock 20 fs/fat/fatent.c static DEFINE_SPINLOCK(fat12_entry_lock); fat12_entry_lock 123 fs/fat/fatent.c spin_lock(&fat12_entry_lock); fat12_entry_lock 128 fs/fat/fatent.c spin_unlock(&fat12_entry_lock); fat12_entry_lock 161 fs/fat/fatent.c spin_lock(&fat12_entry_lock); fat12_entry_lock 169 fs/fat/fatent.c spin_unlock(&fat12_entry_lock);