Differential D21391 Diff 62554 head/sys/kern/kern_descrip.c

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head/sys/kern/kern_descrip.c

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kern_fcntl(struct thread *td, int fd, int cmd, intptr_t arg)		kern_fcntl(struct thread *td, int fd, int cmd, intptr_t arg)
{		{
struct filedesc *fdp;		struct filedesc *fdp;
struct flock *flp;		struct flock *flp;
struct file fp, fp2;		struct file fp, fp2;
struct filedescent *fde;		struct filedescent *fde;
struct proc *p;		struct proc *p;
struct vnode *vp;		struct vnode *vp;
int error, flg, tmp;		int error, flg, seals, tmp;
uint64_t bsize;		uint64_t bsize;
off_t foffset;		off_t foffset;

error = 0;		error = 0;
flg = F_POSIX;		flg = F_POSIX;
p = td->td_proc;		p = td->td_proc;
fdp = p->p_fd;		fdp = p->p_fd;

▲ Show 20 Lines • Show All 247 Lines • ▼ Show 20 Lines	if (flp->l_whence == SEEK_CUR) {
fdrop(fp, td);		fdrop(fp, td);
break;		break;
}		}
flp->l_start += foffset;		flp->l_start += foffset;
}		}
vp = fp->f_vnode;		vp = fp->f_vnode;
error = VOP_ADVLOCK(vp, (caddr_t)p->p_leader, F_GETLK, flp,		error = VOP_ADVLOCK(vp, (caddr_t)p->p_leader, F_GETLK, flp,
F_POSIX);		F_POSIX);
		fdrop(fp, td);
		break;

		case F_ADD_SEALS:
		error = fget_unlocked(fdp, fd, &cap_no_rights, &fp, NULL);
		if (error != 0)
		break;
		error = fo_add_seals(fp, arg);
		fdrop(fp, td);
		break;

		case F_GET_SEALS:
		error = fget_unlocked(fdp, fd, &cap_no_rights, &fp, NULL);
		if (error != 0)
		break;
		if (fo_get_seals(fp, &seals) == 0)
		td->td_retval[0] = seals;
		else
		error = EINVAL;
fdrop(fp, td);		fdrop(fp, td);
break;		break;

case F_RDAHEAD:		case F_RDAHEAD:
arg = arg ? 128 * 1024: 0;		arg = arg ? 128 * 1024: 0;
/* FALLTHROUGH */		/* FALLTHROUGH */
case F_READAHEAD:		case F_READAHEAD:
error = fget_unlocked(fdp, fd, &cap_no_rights, &fp, NULL);		error = fget_unlocked(fdp, fd, &cap_no_rights, &fp, NULL);
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