wok-next diff qemu/stuff/cloop.u @ rev 18828
cloop: deduplicate support
author | Pascal Bellard <pascal.bellard@slitaz.org> |
---|---|
date | Sun Jan 17 14:10:13 2016 +0100 (2016-01-17) |
parents | 9375c1de578d |
children | 74ce1799eee7 |
line diff
1.1 --- a/qemu/stuff/cloop.u Thu Apr 23 15:15:23 2015 +0200 1.2 +++ b/qemu/stuff/cloop.u Sun Jan 17 14:10:13 2016 +0100 1.3 @@ -1,6 +1,6 @@ 1.4 --- block/cloop.c 1.5 +++ block/cloop.c 1.6 -@@ -29,11 +29,85 @@ 1.7 +@@ -29,11 +29,90 @@ 1.8 /* Maximum compressed block size */ 1.9 #define MAX_BLOCK_SIZE (64 * 1024 * 1024) 1.10 1.11 @@ -72,7 +72,12 @@ 1.12 + } 1.13 + for (i = 0, j = 128 + 4 + 4; i < n; i++) { 1.14 + offsets[i].offset = j; 1.15 -+ j += offsets[i].size; 1.16 ++ if (offsets[i].size & 0x80000000) { 1.17 ++ unsigned long k = offset[i].size & 0x7FFFFFFF; 1.18 ++ offsets[i].offset = offsets[k].offset; 1.19 ++ offsets[i].size = offsets[k].size; 1.20 ++ } 1.21 ++ else j += offsets[i].size; 1.22 + } 1.23 + } 1.24 + return 0;