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Btrfs: fix check for changed extent in is_extent_unchanged
author
Alexander Block
<ablock84@googlemail.com>
Wed, 1 Aug 2012 10:46:05 +0000
(12:46 +0200)
committer
Chris Mason
<chris.mason@fusionio.com>
Mon, 1 Oct 2012 19:18:57 +0000
(15:18 -0400)
The previous check was working fine, but this check should be
easier to read. Also, we could theoritically have some exotic
bugs with the previous checks.
Signed-off-by: Alexander Block <ablock84@googlemail.com>
fs/btrfs/send.c
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diff --git
a/fs/btrfs/send.c
b/fs/btrfs/send.c
index
cfbe987
..
35222d5
100644
(file)
--- a/
fs/btrfs/send.c
+++ b/
fs/btrfs/send.c
@@
-3819,8
+3819,8
@@
static int is_extent_unchanged(struct send_ctx *sctx,
/*
* Check if we have the same extent.
*/
- if (left_disknr
+ left_offset_fixed !=
-
right_disknr +
right_offset) {
+ if (left_disknr
!= right_disknr ||
+
left_offset_fixed !=
right_offset) {
ret = 0;
goto out;
}