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Qcow2: Release refcount table clusters after growing the refcount table, 

by Juergen Keil.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2586 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-04-02 12:48:47 +00:00
parent cce1075c76
commit 23be50f1af
1 changed files with 5 additions and 0 deletions
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5
block-qcow2.c
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@ -1886,6 +1886,8 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
int64_t table_offset; int64_t table_offset;
uint64_t data64; uint64_t data64;
uint32_t data32; uint32_t data32;
int old_table_size;
int64_t old_table_offset;
if (min_size <= s->refcount_table_size) if (min_size <= s->refcount_table_size)
return 0; return 0;
@ -1931,11 +1933,14 @@ static int grow_refcount_table(BlockDriverState *bs, int min_size)
&data32, sizeof(data32)) != sizeof(data32)) &data32, sizeof(data32)) != sizeof(data32))
goto fail; goto fail;
qemu_free(s->refcount_table); qemu_free(s->refcount_table);
old_table_offset = s->refcount_table_offset;
old_table_size = s->refcount_table_size;
s->refcount_table = new_table; s->refcount_table = new_table;
s->refcount_table_size = new_table_size; s->refcount_table_size = new_table_size;
s->refcount_table_offset = table_offset; s->refcount_table_offset = table_offset;
update_refcount(bs, table_offset, new_table_size2, 1); update_refcount(bs, table_offset, new_table_size2, 1);
free_clusters(bs, old_table_offset, old_table_size * sizeof(uint64_t));
return 0; return 0;
fail: fail:
free_clusters(bs, table_offset, new_table_size2); free_clusters(bs, table_offset, new_table_size2);