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dump: Rework dump_calculate_size function

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dump_calculate_size() sums up all the sizes of the guest memory
blocks. Since we already have a function that calculates the size of a
single memory block (dump_get_memblock_size()) we can simply iterate
over the blocks and use the function instead of calculating the size
ourselves.

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Message-Id: <20220811121111.9878-7-frankja@linux.ibm.com>
This commit is contained in:
Janosch Frank 2022-08-11 12:10:59 +00:00 committed by Marc-André Lureau
parent dddf725f70
commit c370d5300f
1 changed files with 8 additions and 14 deletions
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22
dump/dump.c
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@ -1548,25 +1548,19 @@ bool qemu_system_dump_in_progress(void)
return (qatomic_read(&state->status) == DUMP_STATUS_ACTIVE);
}
/* calculate total size of memory to be dumped (taking filter into
* acoount.) */
/*
* calculate total size of memory to be dumped (taking filter into
* account.)
*/
static int64_t dump_calculate_size(DumpState *s)
{
GuestPhysBlock *block;
int64_t size = 0, total = 0, left = 0, right = 0;
int64_t total = 0;
QTAILQ_FOREACH(block, &s->guest_phys_blocks.head, next) {
if (dump_has_filter(s)) {
/* calculate the overlapped region. */
left = MAX(s->filter_area_begin, block->target_start);
right = MIN(s->filter_area_begin + s->filter_area_length, block->target_end);
size = right - left;
size = size > 0 ? size : 0;
} else {
/* count the whole region in */
size = (block->target_end - block->target_start);
}
total += size;
total += dump_filtered_memblock_size(block,
s->filter_area_begin,
s->filter_area_length);
}
return total;