From: "Dr. David Alan Gilbert" <address@hidden>
check the return value of the function it calls and error if it's non-0
Fixup qemu_rdma_init_one_block that is the only current caller,
and rdma_add_block the only function it calls using it.
Pass the name of the ramblock to the function; helps in debugging.
Signed-off-by: Dr. David Alan Gilbert <address@hidden>
Reviewed-by: David Gibson <address@hidden>
---
exec.c | 10 ++++++++--
include/exec/cpu-common.h | 4 ++--
migration/rdma.c | 4 ++--
3 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/exec.c b/exec.c
index 874ecfc..7693794 100644
--- a/exec.c
+++ b/exec.c
@@ -3067,14 +3067,20 @@ bool cpu_physical_memory_is_io(hwaddr phys_addr)
memory_region_is_romd(mr));
}
-void qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)
+int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque)
{
RAMBlock *block;
+ int ret = 0;
rcu_read_lock();
QLIST_FOREACH_RCU(block, &ram_list.blocks, next) {
- func(block->host, block->offset, block->used_length, opaque);
+ ret = func(block->idstr, block->host, block->offset,
+ block->used_length, opaque);
+ if (ret) {
+ break;
+ }
}
rcu_read_unlock();
+ return ret;
}
#endif
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index fcc3162..2abecac 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -125,10 +125,10 @@ void cpu_flush_icache_range(hwaddr start, int len);
extern struct MemoryRegion io_mem_rom;
extern struct MemoryRegion io_mem_notdirty;
-typedef void (RAMBlockIterFunc)(void *host_addr,
+typedef int (RAMBlockIterFunc)(const char *block_name, void *host_addr,
ram_addr_t offset, ram_addr_t length, void *opaque);
-void qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque);
+int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque);
#endif
diff --git a/migration/rdma.c b/migration/rdma.c
index 089adcf..38e5f44 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -570,10 +570,10 @@ static int rdma_add_block(RDMAContext *rdma, void
*host_addr,
* in advanced before the migration starts. This tells us where the RAM blocks
* are so that we can register them individually.
*/
-static void qemu_rdma_init_one_block(void *host_addr,
+static int qemu_rdma_init_one_block(const char *block_name, void *host_addr,
ram_addr_t block_offset, ram_addr_t length, void *opaque)
{
- rdma_add_block(opaque, host_addr, block_offset, length);
+ return rdma_add_block(opaque, host_addr, block_offset, length);
}
/*