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-rw-r--r--migration/qemu-file-buf.c7
-rw-r--r--migration/qemu-file-stdio.c11
-rw-r--r--migration/qemu-file-unix.c6
-rw-r--r--migration/rdma.c13
-rw-r--r--migration/savevm.c7
5 files changed, 25 insertions, 19 deletions
diff --git a/migration/qemu-file-buf.c b/migration/qemu-file-buf.c
index 2de9330ca5..1d9528e674 100644
--- a/migration/qemu-file-buf.c
+++ b/migration/qemu-file-buf.c
@@ -372,7 +372,8 @@ typedef struct QEMUBuffer {
bool qsb_allocated;
} QEMUBuffer;
-static int buf_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static ssize_t buf_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
+ size_t size)
{
QEMUBuffer *s = opaque;
ssize_t len = qsb_get_length(s->qsb) - pos;
@@ -387,8 +388,8 @@ static int buf_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
return qsb_get_buffer(s->qsb, pos, len, buf);
}
-static int buf_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
+static ssize_t buf_put_buffer(void *opaque, const uint8_t *buf,
+ int64_t pos, size_t size)
{
QEMUBuffer *s = opaque;
diff --git a/migration/qemu-file-stdio.c b/migration/qemu-file-stdio.c
index 285068b303..dc91137b9c 100644
--- a/migration/qemu-file-stdio.c
+++ b/migration/qemu-file-stdio.c
@@ -37,11 +37,11 @@ static int stdio_get_fd(void *opaque)
return fileno(s->stdio_file);
}
-static int stdio_put_buffer(void *opaque, const uint8_t *buf, int64_t pos,
- int size)
+static ssize_t stdio_put_buffer(void *opaque, const uint8_t *buf, int64_t pos,
+ size_t size)
{
QEMUFileStdio *s = opaque;
- int res;
+ size_t res;
res = fwrite(buf, 1, size, s->stdio_file);
@@ -51,11 +51,12 @@ static int stdio_put_buffer(void *opaque, const uint8_t *buf, int64_t pos,
return res;
}
-static int stdio_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static ssize_t stdio_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
+ size_t size)
{
QEMUFileStdio *s = opaque;
FILE *fp = s->stdio_file;
- int bytes;
+ ssize_t bytes;
for (;;) {
clearerr(fp);
diff --git a/migration/qemu-file-unix.c b/migration/qemu-file-unix.c
index bfbc0861ab..adfe91add1 100644
--- a/migration/qemu-file-unix.c
+++ b/migration/qemu-file-unix.c
@@ -54,7 +54,8 @@ static int socket_get_fd(void *opaque)
return s->fd;
}
-static int socket_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static ssize_t socket_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
+ size_t size)
{
QEMUFileSocket *s = opaque;
ssize_t len;
@@ -138,7 +139,8 @@ static ssize_t unix_writev_buffer(void *opaque, struct iovec *iov, int iovcnt,
return total;
}
-static int unix_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static ssize_t unix_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
+ size_t size)
{
QEMUFileSocket *s = opaque;
ssize_t len;
diff --git a/migration/rdma.c b/migration/rdma.c
index 9424834501..be7fd922b8 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -2519,8 +2519,8 @@ static void *qemu_rdma_data_init(const char *host_port, Error **errp)
* SEND messages for control only.
* VM's ram is handled with regular RDMA messages.
*/
-static int qemu_rdma_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
+static ssize_t qemu_rdma_put_buffer(void *opaque, const uint8_t *buf,
+ int64_t pos, size_t size)
{
QEMUFileRDMA *r = opaque;
QEMUFile *f = r->file;
@@ -2547,7 +2547,8 @@ static int qemu_rdma_put_buffer(void *opaque, const uint8_t *buf,
r->len = MIN(remaining, RDMA_SEND_INCREMENT);
remaining -= r->len;
- head.len = r->len;
+ /* Guaranteed to fit due to RDMA_SEND_INCREMENT MIN above */
+ head.len = (uint32_t)r->len;
head.type = RDMA_CONTROL_QEMU_FILE;
ret = qemu_rdma_exchange_send(rdma, &head, data, NULL, NULL, NULL);
@@ -2564,7 +2565,7 @@ static int qemu_rdma_put_buffer(void *opaque, const uint8_t *buf,
}
static size_t qemu_rdma_fill(RDMAContext *rdma, uint8_t *buf,
- int size, int idx)
+ size_t size, int idx)
{
size_t len = 0;
@@ -2585,8 +2586,8 @@ static size_t qemu_rdma_fill(RDMAContext *rdma, uint8_t *buf,
* RDMA links don't use bytestreams, so we have to
* return bytes to QEMUFile opportunistically.
*/
-static int qemu_rdma_get_buffer(void *opaque, uint8_t *buf,
- int64_t pos, int size)
+static ssize_t qemu_rdma_get_buffer(void *opaque, uint8_t *buf,
+ int64_t pos, size_t size)
{
QEMUFileRDMA *r = opaque;
RDMAContext *rdma = r->rdma;
diff --git a/migration/savevm.c b/migration/savevm.c
index 33e55fea09..96b8210cc3 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -138,14 +138,15 @@ static ssize_t block_writev_buffer(void *opaque, struct iovec *iov, int iovcnt,
return qiov.size;
}
-static int block_put_buffer(void *opaque, const uint8_t *buf,
- int64_t pos, int size)
+static ssize_t block_put_buffer(void *opaque, const uint8_t *buf,
+ int64_t pos, size_t size)
{
bdrv_save_vmstate(opaque, buf, pos, size);
return size;
}
-static int block_get_buffer(void *opaque, uint8_t *buf, int64_t pos, int size)
+static ssize_t block_get_buffer(void *opaque, uint8_t *buf, int64_t pos,
+ size_t size)
{
return bdrv_load_vmstate(opaque, buf, pos, size);
}