vtruncbuf - Haiku

Symbol: vtruncbuf

src/add-ons/kernel/file_systems/fat/bsd/fs/msdosfs/msdosfs_denode.c

allerror = vtruncbuf(DETOV(dep), length, pmp->pm_bpcluster);

src/add-ons/kernel/file_systems/fat/bsd/sys/vnode.h

int vtruncbuf(struct vnode* vp, off_t length, int blksize);