OPT_BOOL(), \
BCH2_NO_SB_OPT, true, \
NULL, "Stash pointer to in memory btree node in btree ptr")\
+ x(btree_write_buffer_size, u32, \
+ OPT_FS|OPT_MOUNT, \
+ OPT_UINT(16, (1U << 20) - 1), \
+ BCH2_NO_SB_OPT, 1U << 13, \
+ NULL, "Number of btree write buffer entries") \
x(gc_reserve_percent, u8, \
OPT_FS|OPT_FORMAT|OPT_MOUNT|OPT_RUNTIME, \
OPT_UINT(5, 21), \