From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52579) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xa6xu-0007nn-5s for qemu-devel@nongnu.org; Fri, 03 Oct 2014 13:48:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xa6xl-00019d-TM for qemu-devel@nongnu.org; Fri, 03 Oct 2014 13:48:26 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44220) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xa6xl-00017o-KF for qemu-devel@nongnu.org; Fri, 03 Oct 2014 13:48:17 -0400 From: "Dr. David Alan Gilbert (git)" Date: Fri, 3 Oct 2014 18:47:10 +0100 Message-Id: <1412358473-31398-5-git-send-email-dgilbert@redhat.com> In-Reply-To: <1412358473-31398-1-git-send-email-dgilbert@redhat.com> References: <1412358473-31398-1-git-send-email-dgilbert@redhat.com> Subject: [Qemu-devel] [PATCH v4 04/47] qemu_ram_foreach_block: pass up error value, and down the ramblock name List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: aarcange@redhat.com, yamahata@private.email.ne.jp, lilei@linux.vnet.ibm.com, quintela@redhat.com, cristian.klein@cs.umu.se, amit.shah@redhat.com, yanghy@cn.fujitsu.com From: "Dr. David Alan Gilbert" 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 __qemu_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 --- 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 759055d..7989d19 100644 --- a/exec.c +++ b/exec.c @@ -2867,12 +2867,18 @@ 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; QTAILQ_FOREACH(block, &ram_list.blocks, next) { - func(block->host, block->offset, block->length, opaque); + ret = func(block->idstr, block->host, block->offset, block->length, + opaque); + if (ret) { + return ret; + } } + return 0; } #endif diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h index e3ec4c8..8042f50 100644 --- a/include/exec/cpu-common.h +++ b/include/exec/cpu-common.h @@ -118,10 +118,10 @@ 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 b32dbdf..c0e52ed 100644 --- a/migration-rdma.c +++ b/migration-rdma.c @@ -595,10 +595,10 @@ static int __qemu_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) { - __qemu_rdma_add_block(opaque, host_addr, block_offset, length); + return __qemu_rdma_add_block(opaque, host_addr, block_offset, length); } /* -- 1.9.3