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| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2021-09-14 15:24:45 +0300 |
|---|---|---|
| committer | Hanna Reitz <hreitz@redhat.com> | 2021-09-15 18:42:38 +0200 |
| commit | 786c22d9c2c890f7c7fcd2600571a2ef429d65db (patch) | |
| tree | 10b6482cd81c7cd2353ee0837b1913ff3680916f /block | |
| parent | a1c62436a4f053766892355da0ca35c5df19fc22 (diff) | |
| download | qemu-786c22d9c2c890f7c7fcd2600571a2ef429d65db.zip qemu-786c22d9c2c890f7c7fcd2600571a2ef429d65db.tar.gz qemu-786c22d9c2c890f7c7fcd2600571a2ef429d65db.tar.bz2 | |
qcow2-refcount: improve style of check_refcounts_l2()
- don't use same name for size in bytes and in entries
- use g_autofree for l2_table
- add whitespace
- fix block comment style
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Hanna Reitz <hreitz@redhat.com>
Message-Id: <20210914122454.141075-2-vsementsov@virtuozzo.com>
Signed-off-by: Hanna Reitz <hreitz@redhat.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/qcow2-refcount.c | 47 |
1 files changed, 24 insertions, 23 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c index 8e649b0..2734338 100644 --- a/block/qcow2-refcount.c +++ b/block/qcow2-refcount.c @@ -1601,23 +1601,22 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, int flags, BdrvCheckMode fix, bool active) { BDRVQcow2State *s = bs->opaque; - uint64_t *l2_table, l2_entry; + uint64_t l2_entry; uint64_t next_contiguous_offset = 0; - int i, l2_size, nb_csectors, ret; + int i, nb_csectors, ret; + size_t l2_size_bytes = s->l2_size * l2_entry_size(s); + g_autofree uint64_t *l2_table = g_malloc(l2_size_bytes); /* Read L2 table from disk */ - l2_size = s->l2_size * l2_entry_size(s); - l2_table = g_malloc(l2_size); - - ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size); + ret = bdrv_pread(bs->file, l2_offset, l2_table, l2_size_bytes); if (ret < 0) { fprintf(stderr, "ERROR: I/O error in check_refcounts_l2\n"); res->check_errors++; - goto fail; + return ret; } /* Do the actual checks */ - for(i = 0; i < s->l2_size; i++) { + for (i = 0; i < s->l2_size; i++) { l2_entry = get_l2_entry(s, l2_table, i); switch (qcow2_get_cluster_type(bs, l2_entry)) { @@ -1647,14 +1646,15 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, l2_entry & QCOW2_COMPRESSED_SECTOR_MASK, nb_csectors * QCOW2_COMPRESSED_SECTOR_SIZE); if (ret < 0) { - goto fail; + return ret; } if (flags & CHECK_FRAG_INFO) { res->bfi.allocated_clusters++; res->bfi.compressed_clusters++; - /* Compressed clusters are fragmented by nature. Since they + /* + * Compressed clusters are fragmented by nature. Since they * take up sub-sector space but we only have sector granularity * I/O we need to re-read the same sectors even for adjacent * compressed clusters. @@ -1700,9 +1700,11 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, if (ret < 0) { fprintf(stderr, "ERROR: Overlap check failed\n"); res->check_errors++; - /* Something is seriously wrong, so abort checking - * this L2 table */ - goto fail; + /* + * Something is seriously wrong, so abort checking + * this L2 table. + */ + return ret; } ret = bdrv_pwrite_sync(bs->file, l2e_offset, @@ -1712,13 +1714,17 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, fprintf(stderr, "ERROR: Failed to overwrite L2 " "table entry: %s\n", strerror(-ret)); res->check_errors++; - /* Do not abort, continue checking the rest of this - * L2 table's entries */ + /* + * Do not abort, continue checking the rest of this + * L2 table's entries. + */ } else { res->corruptions--; res->corruptions_fixed++; - /* Skip marking the cluster as used - * (it is unused now) */ + /* + * Skip marking the cluster as used + * (it is unused now). + */ continue; } } @@ -1743,7 +1749,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, refcount_table_size, offset, s->cluster_size); if (ret < 0) { - goto fail; + return ret; } } break; @@ -1758,12 +1764,7 @@ static int check_refcounts_l2(BlockDriverState *bs, BdrvCheckResult *res, } } - g_free(l2_table); return 0; - -fail: - g_free(l2_table); - return ret; } /* |