bio_lock           63 usr/server/fs/vfs/vfs_bio.c static mutex_t bio_lock = MUTEX_INITIALIZER;
bio_lock           64 usr/server/fs/vfs/vfs_bio.c #define BIO_LOCK()	mutex_lock(&bio_lock)
bio_lock           65 usr/server/fs/vfs/vfs_bio.c #define BIO_UNLOCK()	mutex_unlock(&bio_lock)