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[Qemu-devel] [RFC 15/24] qcow2: split up the creation of new refcount ta
From: |
Devin Nakamura |
Subject: |
[Qemu-devel] [RFC 15/24] qcow2: split up the creation of new refcount table from the act of checking it |
Date: |
Fri, 29 Jul 2011 00:49:45 -0400 |
Signed-off-by: Devin Nakamura <address@hidden>
---
block/qcow2-refcount.c | 39 +++++++++++++++++++++++++++++----------
1 files changed, 29 insertions(+), 10 deletions(-)
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 14b2f67..75f1f88 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -1075,17 +1075,10 @@ fail:
return -EIO;
}
-/*
- * Checks an image for refcount consistency.
- *
- * Returns 0 if no errors are found, the number of errors in case the image is
- * detected as corrupted, and -errno when an internal error occurred.
- */
-int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res)
-{
+static int inc_refcount_table(BlockDriverState *bs, BdrvCheckResult *res,
uint16_t **table) {
BDRVQcowState *s = bs->opaque;
int64_t size;
- int nb_clusters, refcount1, refcount2, i;
+ int nb_clusters, i;
QCowSnapshot *sn;
uint16_t *refcount_table;
int ret;
@@ -1151,6 +1144,33 @@ int qcow2_check_refcounts(BlockDriverState *bs,
BdrvCheckResult *res)
}
}
}
+ *table = refcount_table;
+ ret = 0;
+
+fail:
+ return ret;
+}
+
+/*
+ * Checks an image for refcount consistency.
+ *
+ * Returns 0 if no errors are found, the number of errors in case the image is
+ * detected as corrupted, and -errno when an internal error occurred.
+ */
+int qcow2_check_refcounts(BlockDriverState *bs, BdrvCheckResult *res)
+{
+ BDRVQcowState *s = bs->opaque;
+ int64_t size;
+ int nb_clusters, refcount1, refcount2, i;
+ uint16_t *refcount_table;
+ int ret;
+
+ size = bdrv_getlength(bs->file);
+ nb_clusters = size_to_clusters(s, size);
+ ret = inc_refcount_table(bs, res, &refcount_table);
+ if (ret) {
+ goto fail;
+ }
/* compare ref counts */
for(i = 0; i < nb_clusters; i++) {
@@ -1182,4 +1202,3 @@ fail:
return ret;
}
-
--
1.7.6.rc1
- [Qemu-devel] [RFC 04/24] block: add bdrv_get_mapping(), (continued)
- [Qemu-devel] [RFC 04/24] block: add bdrv_get_mapping(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 05/24] block: add bdrv_map(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 06/24] block: add bdrv_copy_header(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 07/24] qed: make qed_alloc_clusters round up offset to nearest cluster, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 08/24] qed: add qed_find_cluster_sync(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 10/24] qed: add qed_bdrv_map(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 11/24] qed: add open_conversion_target(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 09/24] qed: add qed_bdrv_get_mapping(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 13/24] qed: add bdrv_qed_get_conversion_options(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 12/24] qed: add bdrv_qed_copy_header(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 15/24] qcow2: split up the creation of new refcount table from the act of checking it,
Devin Nakamura <=
- [Qemu-devel] [RFC 14/24] qcow2: fix typo in documentation for qcow2_get_cluster_offset(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 16/24] qcow2: add qcow2_drop_leaked_clusters(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 17/24] qcow2: add qcow2_get_mapping, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 18/24] qcow2: add qcow2_map, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 19/24] qcow2: add qcow2_copy_header(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 21/24] qcow2: add qcow2_open_conversion_target(), Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 23/24] qemu-io: add setmap command, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 24/24] qemu-img: add inplace conversion to qemu-img, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 22/24] qemu-io: make map command use new block mapping function, Devin Nakamura, 2011/07/29
- [Qemu-devel] [RFC 20/24] qcow2: add get_conversion_options(), Devin Nakamura, 2011/07/29