Merge tag 'migration-20231031-pull-request' of https://gitlab.com/juan.quintela/qemu...

Merge tag 'migration-20231031-pull-request' of https://gitlab.com/juan.quintela/qemu into staging

Migration Pull request (20231031)

Hi

This is repeat of the Migration PULL for 20231020.
- I removed vmstate_register(big problems with s390x)
- I added yet more countes (juan)

CI: https://gitlab.com/juan.quintela/qemu/-/pipelines/1055797950

Please apply.

Thanks, Juan.

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# gpg: Signature made Tue 31 Oct 2023 18:01:26 JST
# gpg:                using RSA key 1899FF8EDEBF58CCEE034B82F487EF185872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>" [full]
# gpg:                 aka "Juan Quintela <quintela@trasno.org>" [full]
# Primary key fingerprint: 1899 FF8E DEBF 58CC EE03  4B82 F487 EF18 5872 D723

* tag 'migration-20231031-pull-request' of https://gitlab.com/juan.quintela/qemu: (38 commits)
  qemu-file: Make qemu_fflush() return errors
  migration: Remove transferred atomic counter
  migration: Use migration_transferred_bytes()
  qemu-file: Simplify qemu_file_get_error()
  migration: migration_rate_limit_reset() don't need the QEMUFile
  migration: migration_transferred_bytes() don't need the QEMUFile
  qemu-file: Remove _noflush from qemu_file_transferred_noflush()
  qemu_file: Remove unused qemu_file_transferred()
  migration: Use the number of transferred bytes directly
  qemu_file: total_transferred is not used anymore
  qemu_file: Use a stat64 for qemu_file_transferred
  qemu-file: Don't increment qemu_file_transferred at qemu_file_fill_buffer
  migration: Stop migration immediately in RDMA error paths
  migration: Deprecate old compression method
  migration: Deprecate block migration
  migration: migrate 'blk' command option is deprecated.
  migration: migrate 'inc' command option is deprecated.
  qemu-iotests: Filter warnings about block migration being deprecated
  migration: set file error on subsection loading
  migration: rename vmstate_save_needed->vmstate_section_needed
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>