From 5600f5ebd318f7af6f4b19a29f08d18bb85264e5 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Wed, 28 Oct 2009 14:57:25 -0700
Subject: [PATCH] ceph: correct comment to match striping calculation
The object extent offset is the file offset _modulo_ the stripe unit.
The code was correct, the comment was wrong.
Reported-by: Noah Watkins <jayhawk@soe.ucsc.edu>
Signed-off-by: Sage Weil <sage@newdream.net>
---
fs/ceph/osdmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/ceph/osdmap.c b/fs/ceph/osdmap.c
index 60012e05bdfd..a9a4143234fa 100644
--- a/fs/ceph/osdmap.c
+++ b/fs/ceph/osdmap.c
@@ -752,7 +752,7 @@ void ceph_calc_file_object_mapping(struct ceph_file_layout *layout,
*bno = objsetno * sc + stripepos;
dout("objset %u * sc %u = bno %u\n", objsetno, sc, (unsigned)*bno);
- /* *oxoff = *off / layout->fl_stripe_unit; */
+ /* *oxoff = *off % layout->fl_stripe_unit; */
t = off;
*oxoff = do_div(t, su);
*oxlen = min_t(u64, *plen, su - *oxoff);
--
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