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migration/rdma: Drop qemu_rdma_search_ram_block() error handling

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qemu_rdma_search_ram_block() can't fail.  Return void, and drop the
unreachable error handling.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230928132019.2544702-14-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2023-09-28 15:19:39 +02:00 • committed by Juan Quintela
parent 0610d7a1d8
commit 87e6bdabf0
1 changed files with 8 additions and 16 deletions
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24
migration/rdma.c
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@ -1231,15 +1231,13 @@ static int qemu_rdma_reg_whole_ram_blocks(RDMAContext *rdma)
* *
* Once the block is found, also identify which 'chunk' within that * Once the block is found, also identify which 'chunk' within that
* block that the page belongs to. * block that the page belongs to.
*
* This search cannot fail or the migration will fail.
*/ */
static int qemu_rdma_search_ram_block(RDMAContext *rdma, static void qemu_rdma_search_ram_block(RDMAContext *rdma,
uintptr_t block_offset, uintptr_t block_offset,
uint64_t offset, uint64_t offset,
uint64_t length, uint64_t length,
uint64_t *block_index, uint64_t *block_index,
uint64_t *chunk_index) uint64_t *chunk_index)
{ {
uint64_t current_addr = block_offset + offset; uint64_t current_addr = block_offset + offset;
RDMALocalBlock *block = g_hash_table_lookup(rdma->blockmap, RDMALocalBlock *block = g_hash_table_lookup(rdma->blockmap,
@ -1251,8 +1249,6 @@ static int qemu_rdma_search_ram_block(RDMAContext *rdma,
*block_index = block->index; *block_index = block->index;
*chunk_index = ram_chunk_index(block->local_host_addr, *chunk_index = ram_chunk_index(block->local_host_addr,
block->local_host_addr + (current_addr - block->offset)); block->local_host_addr + (current_addr - block->offset));
return 0;
} }
/* /*
@ -2341,12 +2337,8 @@ static int qemu_rdma_write(RDMAContext *rdma,
rdma->current_length = 0; rdma->current_length = 0;
rdma->current_addr = current_addr; rdma->current_addr = current_addr;
ret = qemu_rdma_search_ram_block(rdma, block_offset, qemu_rdma_search_ram_block(rdma, block_offset,
offset, len, &index, &chunk); offset, len, &index, &chunk);
if (ret) {
error_report("ram block search failed");
return ret;
}
rdma->current_index = index; rdma->current_index = index;
rdma->current_chunk = chunk; rdma->current_chunk = chunk;
} }