git: sys/vfs/hammer2: Cleanup freemap index calculation
Tomohiro Kusumi
tkusumi at crater.dragonflybsd.org
Tue Sep 17 12:24:47 PDT 2019
commit cef11e5a699b5d500d12a5716b8337beed0d9f86
Author: Tomohiro Kusumi <kusumi.tomohiro at gmail.com>
Date: Mon Sep 16 22:02:13 2019 +0900
sys/vfs/hammer2: Cleanup freemap index calculation
Freemap bitmaps (64KB x 5levels x 8rotations) exist in the first
4MB area of every 1GB, so bitmap offset mask should be 4MB-1 rather
than 1GB-1. It explicitly wants to clear bit 22-29.
This doesn't change the result since bref->data_off for freemap
itself has to have 0 for bit 22-29.
Summary of changes:
sys/vfs/hammer2/hammer2_freemap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/cef11e5a699b5d500d12a5716b8337beed0d9f86
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