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2011-10-21block: drop redundant bdrv_flush implementationStefan Hajnoczi
Block drivers now only need to provide either of .bdrv_co_flush, .bdrv_aio_flush() or for legacy drivers .bdrv_flush(). Remove the redundant .bdrv_flush() implementations. [Paolo Bonzini: change raw driver to bdrv_co_flush] Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21block: unify flush implementationsPaolo Bonzini
Add coroutine support for flush and apply the same emulation that we already do for read/write. bdrv_aio_flush is simplified to always go through a coroutine. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21xen_disk: Always set feature-barrier = 1Kevin Wolf
The synchronous .bdrv_flush callback doesn't exist any more and a device really shouldn't poke into the block layer internals anyway. All drivers are supposed to have a correctly working bdrv_flush, so let's just hard-code this. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21fix memory leak in aio_write_fAlex Jia
Haven't released memory of 'ctx' before return. Signed-off-by: Alex Jia <ajia@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21block: rename bdrv_co_rw_bhPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21add socket_set_blockPaolo Bonzini
Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21sheepdog: add coroutine_fn markersPaolo Bonzini
This makes the following patch easier to review. Cc: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-21hw/arm_gic.c: Fix save/load of irq_target arrayDmitry Koshelev
irq_target array saving/loading is in the wrong loop. Version bump. Signed-off-by: Dmitry Koshelev <karaghiozis@gmail.com> Acked-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-10-21hw/omap2: Wire up the IRQ for the 2430's fifth GPIO modulePeter Maydell
The OMAP2430 version of the omap-gpio device has five GPIO modules, not four like the other OMAP2 versions; wire up the fifth module's IRQ line correctly. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
2011-10-20hw/9pfs: Fix broken compilation caused by wrong trace eventsStefan Weil
Commit c572f23a3e7180dbeab5e86583e43ea2afed6271 added trace events with mismatching format string and arguments. gcc reports these errors: In file included from trace.c:2:0: trace.h: In function ‘trace_v9fs_attach’: trace.h:2850:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_wstat’: trace.h:3039:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_mkdir’: trace.h:3088:9: error: too many arguments for format [-Werror=format-extra-args] trace.h: In function ‘trace_v9fs_mkdir_return’: trace.h:3095:9: error: too many arguments for format [-Werror=format-extra-args] Fix the format strings and also use %u instead of %d for unsigned values in the changed strings. There are more minor errors of this kind which I did not fix because that would make the review more difficult. v2: Fixed position of } for v9fs_mkdir_return. Cc: Harsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20Merge remote-tracking branch 'quintela/migration-pull' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into stagingAnthony Liguori
2011-10-20Merge remote-tracking branch 'aneesh/for-upstream-6' into stagingAnthony Liguori
Conflicts: trace-events
2011-10-20migration: make migration-{tcp,unix} consistentJuan Quintela
Files are almost identical in functionality, just remove the differences that make no sense. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: propagate error correctlyJuan Quintela
unix and tcp outgoing migration have error values, but didn't returned it. Make them return the error. Notice that EINPROGRESS & EWOULDBLOCK are not considered errors as call will be retry later. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Don't use callback on file defining itJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Make state definitions localJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Export a function that tells if the migration has finished correctlyJuan Quintela
This will allow us to hide the state values. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Pass MigrationState in migration notifiersJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Use bandwidth_limit directlyJuan Quintela
Now that current_migration always exist, there is no reason for max_throotle variable. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: create accessor for current_migrationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Move exported functions to the end of the fileJuan Quintela
This means we can remove the two forward declarations. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Remove migration cancel() callbackJuan Quintela
It is used only in one place Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Remove get_status() accessorJuan Quintela
It is only used inside migration.c, and fields on that struct are accessed all around the place on that file. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Our release callback was just freeJuan Quintela
We called it from a single place, and always with state != MIG_STATE_ACTIVE. Just remove the whole callback. For users of the notifier, notice that this is exactly the case where they don't care, we are just freeing the state from previous failed migration (it can't be a sucessful one, otherwise we would not be running on that machine in the first place). Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Introduce migrate_fd_completed() for consistencyJuan Quintela
This function is a bit different of the others that change the state, in the sense that if migrate_fd_cleanup() returns an error, it set the status to error, not completed. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: Refactor and simplify error checking in migrate_fd_put_readyJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Introduce MIG_STATE_SETUPJuan Quintela
Use MIG_STATE_ACTIVE only when migration has really started. Use this new state to setup migration parameters. Change defines for an anonymous struct. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: move migrate_new to do_migrateJuan Quintela
Once there, remove all parameters that don't need to be passed to *start_outgoing_migration() functions Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Make all posible migration functions staticJuan Quintela
I have to move two functions postions to avoid forward declarations Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Refactor MigrationState creationJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Rename FdMigrationState MigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Fold MigrationState into FdMigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Use FdMigrationState instead of MigrationState when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Make *start_outgoing_migration return FdMigrationStateJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: make *save_live return errorsJuan Quintela
Make *save_live() return negative values when there is one error, and updates all callers to check for the error. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: use qemu_file_get_error() return value when possibleJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20savevm: Rename has_error to last_error fieldJuan Quintela
Now the field contains the last error name, so rename acordingly. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: rename qemu_file_has_error to qemu_file_get_errorJuan Quintela
Now the function returned errno, so it is better the new name. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: return real error codeJuan Quintela
make functions propagate errno, instead of just using -EIO. Add a comment about what are the return value of qemu_savevm_state_iterate(). Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: change has_error to contain errno valuesJuan Quintela
We normally already have an errno value. When not, abuse EIO. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: set error if select return one errorJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: don't "write" when migration is not activeJuan Quintela
If migration is not active, just ignore writes. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20buffered_file: reuse QEMUFile has_error fieldJuan Quintela
Instead of having two has_error fields in QEMUFile & QEMUBufferedFile, reuse the 1st one. Notice that the one in buffered_file is only set after a file operation. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20buffered_file: Use right "opaque"Juan Quintela
buffered_close 's' variable is of type QEMUFileBuffered, and wait_for_unfreeze() expect to receive a MigrationState, that 'coincidentaly' is s->opaque. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: If there is one error, it makes no sense to continueJuan Quintela
Once there, add a comment about what each error mean. Signed-off-by: Juan Quintela <quintela@redhat.com>
2011-10-20migration: add error handling to migrate_fd_put_notify().Yoshiaki Tamura
Although migrate_fd_put_buffer() sets MIG_STATE_ERROR if it failed, since migrate_fd_put_notify() isn't checking error of underlying QEMUFile, those resources are kept open. This patch checks it and calls migrate_fd_error() in case of error. Signed-off-by: Yoshiaki Tamura <tamura.yoshiaki@lab.ntt.co.jp> Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: Check that migration is active before cancel itJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20migration: simplify state assignmenteJuan Quintela
Once there, make sure that if we already know that there is one error, just call migration_fd_cleanup() with the ERROR state. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
2011-10-20ds1225y: Use stdio instead of QEMUFileJuan Quintela
QEMUFile * is only intended for migration nowadays. Using it for anything else just adds pain and a layer of buffers for no good reason. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
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