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[Qemu-devel] [PATCH v3 00/23] Refactor and cleanup migration code

From: Juan Quintela
Subject: [Qemu-devel] [PATCH v3 00/23] Refactor and cleanup migration code
Date: Tue, 20 Sep 2011 16:19:28 +0200


        this patch applies on top of my previous "migration error"
        patches.  All error handling has been moved to that series,
        except for "propagate error correctly", without this
        refactoring, it is quite complicated to apply it.

Please, review.

Later, Juan.

- more checkpatch.pl happines
- split error handling in a previous series
- make Anthony happy.  current_migration is still a pointer, but points to
  a static variable.  We can change current_migration when we integrate

- make Jan^Wcheckpatch.pl happy
- Yoshiaki Tamura suggestions:
  - include its two patches to clean things
  - MAX_THROTTLE define
  - migration_state enum
- I removed spurious differences between migration-{tcp,unix}
- better error propagation, after this patch:
   migrate -d "tcp:name_don_exist:port"
   migrate -d "tcp:name:port_dont_exist"
   migrate -d "exec: prog_dont_exist"
   migrate -d "exec: gzip > /path/dont/exist"
 fail as expected.  Last two used to enter an infinite loop.

The fixes part should be backported to 0.14, waiting for the review to do that.

Later, Juan.

This series:
- Fold MigrationState into FdMigrationState (and then rename)
- Factorize migration statec creation in a single place
- Make use of MIG_STATE_*, setup through helpers and make them local
- remove relase & cancel callbacks (where used only one in same
  file than defined)
- get_status() is no more, just access directly to .state
- current_migration use cleanup, and make variable static
- max_throotle is gone, now inside current_migration
- change get_migration_status() to migration_has_finished()
  and actualize single user.

Please review.

Later, Juan.

*** BLURB HERE ***

Juan Quintela (23):
  migration: Make *start_outgoing_migration return FdMigrationState
  migration: Use FdMigrationState instead of MigrationState when
  migration: Fold MigrationState into FdMigrationState
  migration: Rename FdMigrationState MigrationState
  migration: Refactor MigrationState creation
  migration: Make all posible migration functions static
  migration: move migrate_create_state to do_migrate
  migration: Introduce MIG_STATE_NONE
  migration: Refactor and simplify error checking in
  migration: Introduce migrate_fd_completed() for consistency
  migration: Our release callback was just free
  migration: Remove get_status() accessor
  migration: Remove migration cancel() callback
  migration: Move exported functions to the end of the file
  migration: use global variable directly
  migration: another case of global variable assigned to local one
  migration: make sure we always have a migration state
  migration: Use bandwidth_limit directly
  migration: Export a function that tells if the migration has finished
  migration: Make state definitions local
  migration: Don't use callback on file defining it
  migration: propagate error correctly
  migration: make migration-{tcp,unix} consistent

 migration-exec.c |   39 +----
 migration-fd.c   |   42 ++-----
 migration-tcp.c  |   76 ++++------
 migration-unix.c |  112 ++++++---------
 migration.c      |  400 ++++++++++++++++++++++++++----------------------------
 migration.h      |   85 ++----------
 ui/spice-core.c  |    4 +-
 7 files changed, 300 insertions(+), 458 deletions(-)


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