D49372.id.diff
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D49372.id.diff
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	diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
	--- a/sys/kern/kern_descrip.c
	+++ b/sys/kern/kern_descrip.c
	@@ -2993,6 +2993,47 @@
	return (error);
	}

	+int
	+fget_remote_foreach(struct thread td, struct proc p,
	+ int (fn)(struct proc , int, struct file , void ), void *arg)
	+{
	+ struct filedesc *fdp;
	+ struct fdescenttbl *fdt;
	+ struct file *fp;
	+ int error, error1, fd, highfd;
	+
	+ error = 0;
	+ PROC_LOCK(p);
	+ fdp = fdhold(p);
	+ PROC_UNLOCK(p);
	+ if (fdp == NULL)
	+ return (ENOENT);
	+
	+ FILEDESC_SLOCK(fdp);
	+ if (refcount_load(&fdp->fd_refcnt) != 0) {
	+ fdt = atomic_load_ptr(&fdp->fd_files);
	+ highfd = fdt->fdt_nfiles - 1;
	+ FILEDESC_SUNLOCK(fdp);
	+ } else {
	+ error = ENOENT;
	+ FILEDESC_SUNLOCK(fdp);
	+ goto out;
	+ }
	+
	+ for (fd = 0; fd <= highfd; fd++) {
	+ error1 = fget_remote(td, p, fd, &fp);
	+ if (error1 != 0)
	+ continue;
	+ error = fn(p, fd, fp, arg);
	+ fdrop(fp, td);
	+ if (error != 0)
	+ break;
	+ }
	+out:
	+ fddrop(fdp);
	+ return (error);
	+}
	+
	#ifdef CAPABILITIES
	int
	fgetvp_lookup_smr(struct nameidata ndp, struct vnode vpp, bool fsearch)
	diff --git a/sys/sys/file.h b/sys/sys/file.h
	--- a/sys/sys/file.h
	+++ b/sys/sys/file.h
	@@ -267,6 +267,8 @@
	int needfcntl, struct file **fpp);
	int _fdrop(struct file fp, struct thread td);
	int fget_remote(struct thread td, struct proc p, int fd, struct file **fpp);
	+int fget_remote_foreach(struct thread td, struct proc p,
	+ int (fn)(struct proc , int, struct file , void ), void *arg);

	fo_rdwr_t invfo_rdwr;
	fo_truncate_t invfo_truncate;