Symbol: GD_READ_ONLY
block/genhd.c
1571
if (test_and_set_bit(GD_READ_ONLY, &disk->state))
block/genhd.c
1574
if (!test_and_clear_bit(GD_READ_ONLY, &disk->state))
include/linux/blkdev.h
815
test_bit(GD_READ_ONLY, &disk->state);