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Merge remote-tracking branch 'stefanha/block' into staging

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* stefanha/block:
  rbd: add an asynchronous flush
  iotests: Add 'check -ssh' option to test Secure Shell block device.
  block: ssh: Use libssh2_sftp_fsync (if supported by libssh2) to flush to disk.
  block: Add support for Secure Shell (ssh) block device.
  ide: refuse WIN_READ_NATIVE_MAX on empty device
  qemu-iotests: filter QEMU_PROG in 051.out
  qemu-iotests: Add test for -drive options
  qemu-iotests: A few more bdrv_pread/pwrite tests
  block: Introduce bdrv_pwritev() for qcow2_save_vmstate
  savevm: Implement block_writev_buffer()
  block: Introduce bdrv_writev_vmstate

Conflicts:
	savevm.c

aliguori: add f->pos parameter to writev_buffer().

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori
2013-04-15 08:02:41 -05:00
parent c530b1423b dc7588c1eb
commit db08dc213b
22 changed files with 1722 additions and 44 deletions
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25
savevm.c
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@@ -175,7 +175,8 @@ static void coroutine_fn yield_until_fd_readable(int fd)
qemu_coroutine_yield();
}
static ssize_t socket_writev_buffer(void *opaque, struct iovec *iov, int iovcnt)
static ssize_t socket_writev_buffer(void *opaque, struct iovec *iov, int iovcnt,
int64_t pos)
{
QEMUFileSocket *s = opaque;
ssize_t len;
@@ -457,6 +458,21 @@ fail:
return NULL;
}
static ssize_t block_writev_buffer(void *opaque, struct iovec *iov, int iovcnt,
int64_t pos)
{
int ret;
QEMUIOVector qiov;
qemu_iovec_init_external(&qiov, iov, iovcnt);
ret = bdrv_writev_vmstate(opaque, &qiov, pos);
if (ret < 0) {
return ret;
}
return qiov.size;
}
static int block_put_buffer(void *opaque, const uint8_t *buf,
int64_t pos, int size)
{
@@ -480,8 +496,9 @@ static const QEMUFileOps bdrv_read_ops = {
};
static const QEMUFileOps bdrv_write_ops = {
.put_buffer = block_put_buffer,
.close = bdrv_fclose
.put_buffer = block_put_buffer,
.writev_buffer = block_writev_buffer,
.close = bdrv_fclose
};
static QEMUFile *qemu_fopen_bdrv(BlockDriverState *bs, int is_writable)
@@ -535,7 +552,7 @@ static void qemu_fflush(QEMUFile *f)
if (f->ops->writev_buffer) {
if (f->iovcnt > 0) {
ret = f->ops->writev_buffer(f->opaque, f->iov, f->iovcnt);
ret = f->ops->writev_buffer(f->opaque, f->iov, f->iovcnt, f->pos);
}
} else {
if (f->buf_index > 0) {