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Enable writing after the 2G boundary

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This patch fixes a bug in readwrite.c which truncated the 'from' field
in nbd requests.  It was casting them down from an off64_t to an int.
This commit is contained in:
Alex Young
2012-07-12 18:01:10 +01:00
parent cef2dcaad2
commit 2e4e592c08
6 changed files with 55 additions and 19 deletions
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28
src/ioutil.c
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@@ -55,18 +55,22 @@ struct bitset_mapping* build_allocation_map(int fd, uint64_t size, int resolutio
);
}
for (i=0; i<(size/resolution); i++) {
debug("map[%d] = %d%d%d%d%d%d%d%d",
i,
(allocation_map->bits[i] & 1) == 1,
(allocation_map->bits[i] & 2) == 2,
(allocation_map->bits[i] & 4) == 4,
(allocation_map->bits[i] & 8) == 8,
(allocation_map->bits[i] & 16) == 16,
(allocation_map->bits[i] & 32) == 32,
(allocation_map->bits[i] & 64) == 64,
(allocation_map->bits[i] & 128) == 128
);
/* This is pointlessly verbose for real discs, it's here as a
* reference for pulling data out of the allocation map */
if ( 0 ) {
for (i=0; i<(size/resolution); i++) {
debug("map[%d] = %d%d%d%d%d%d%d%d",
i,
(allocation_map->bits[i] & 1) == 1,
(allocation_map->bits[i] & 2) == 2,
(allocation_map->bits[i] & 4) == 4,
(allocation_map->bits[i] & 8) == 8,
(allocation_map->bits[i] & 16) == 16,
(allocation_map->bits[i] & 32) == 32,
(allocation_map->bits[i] & 64) == 64,
(allocation_map->bits[i] & 128) == 128
);
}
}