From: Samuel J. Greear <sjg@thesjg.com>
Date: Wed, 24 Mar 2010 19:40:47 +0000 (-0600)
Subject: linux - Allow for maps to be read in chunks
X-Git-Tag: v2.7.0~22
X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/5a0bce274ba7b6eba861fec242ce092eb11fe9a6

linux - Allow for maps to be read in chunks
---

diff --git a/sys/emulation/linux/i386/linprocfs/linprocfs_misc.c b/sys/emulation/linux/i386/linprocfs/linprocfs_misc.c
index 359174cdb3..111b10a874 100644
--- a/sys/emulation/linux/i386/linprocfs/linprocfs_misc.c
+++ b/sys/emulation/linux/i386/linprocfs/linprocfs_misc.c
@@ -718,9 +718,6 @@ linprocfs_domaps(struct proc *curp, struct proc *p, struct pfsnode *pfs,
 	if (uio->uio_rw != UIO_READ)
 		return (EOPNOTSUPP);
 
-	if (uio->uio_offset != 0)
-		return (0);
-
 	sb = sbuf_new_auto();
 
 	error = 0;
@@ -822,7 +819,8 @@ linprocfs_domaps(struct proc *curp, struct proc *p, struct pfsnode *pfs,
 
 	sbuf_finish(sb);
 	if (error == 0)
-		error = uiomove_frombuf(sbuf_data(sb), sbuf_len(sb), uio);
+		error = uiomove_frombuf(sbuf_data(sb) + uio->uio_offset,
+		    sbuf_len(sb) - uio->uio_offset, uio);
 	sbuf_delete(sb);
 	return error;
 }