haraldwolff/qemu-patch-raspberry4
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qcow/qcow2: Use DIV_ROUND_UP

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Replace (((n) + (d) - 1) /(d)) by DIV_ROUND_UP(n,d).

This patch is the result of coccinelle script
scripts/coccinelle/round.cocci

CC: qemu-block@nongnu.org
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Laurent Vivier 2016-05-31 18:35:52 +02:00 committed by Michael Tokarev
parent 969401fe76
commit d737b78cc1
3 changed files with 6 additions and 8 deletions
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4
block/qcow.c
View file

@ -868,8 +868,8 @@ static int qcow_create(const char *filename, QemuOpts *opts, Error **errp)
}
tmp = g_malloc0(BDRV_SECTOR_SIZE);
for (i = 0; i < ((sizeof(uint64_t)*l1_size + BDRV_SECTOR_SIZE - 1)/
BDRV_SECTOR_SIZE); i++) {
for (i = 0; i < DIV_ROUND_UP(sizeof(uint64_t) * l1_size, BDRV_SECTOR_SIZE);
i++) {
ret = blk_pwrite(qcow_blk, header_size + BDRV_SECTOR_SIZE * i,
tmp, BDRV_SECTOR_SIZE, 0);
if (ret != BDRV_SECTOR_SIZE) {

4
block/qcow2-cluster.c
View file

@ -1868,8 +1868,8 @@ int qcow2_expand_zero_clusters(BlockDriverState *bs,
}
for (i = 0; i < s->nb_snapshots; i++) {
int l1_sectors = (s->snapshots[i].l1_size * sizeof(uint64_t) +
BDRV_SECTOR_SIZE - 1) / BDRV_SECTOR_SIZE;
int l1_sectors = DIV_ROUND_UP(s->snapshots[i].l1_size *
sizeof(uint64_t), BDRV_SECTOR_SIZE);
l1_table = g_realloc(l1_table, l1_sectors * BDRV_SECTOR_SIZE);

6
block/qcow2-refcount.c
View file

@ -490,14 +490,12 @@ static int alloc_refcount_block(BlockDriverState *bs,
uint64_t table_clusters =
size_to_clusters(s, table_size * sizeof(uint64_t));
blocks_clusters = 1 +
((table_clusters + s->refcount_block_size - 1)
/ s->refcount_block_size);
DIV_ROUND_UP(table_clusters, s->refcount_block_size);
uint64_t meta_clusters = table_clusters + blocks_clusters;
last_table_size = table_size;
table_size = next_refcount_table_size(s, blocks_used +
((meta_clusters + s->refcount_block_size - 1)
/ s->refcount_block_size));
DIV_ROUND_UP(meta_clusters, s->refcount_block_size));
} while (last_table_size != table_size);