qemu-block: deprecated/defunct, remove from tree

qemu-block xlator is not used by anyone, or so I'm told.

It's also substantially out of date. There's little reason to keep
it in our sources. (And FedoraProject doesn't like bundled software
either.)

Change-Id: I4aeb2fdfd962ec6d93de6bae126874121272220a
Signed-off-by: Kaleb S KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/13473
Smoke: Gluster Build System <jenkins@build.gluster.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>

7 files changed, 0 insertions, 1713 deletions

diff --git a/contrib/qemu/include/block/aio.h b/contrib/qemu/include/block/aio.h
deleted file mode 100644
index 183679374fa..00000000000
--- a/contrib/qemu/include/block/aio.h
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * QEMU aio implementation
- *
- * Copyright IBM, Corp. 2008
- *
- * Authors:
- *  Anthony Liguori   <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#ifndef QEMU_AIO_H
-#define QEMU_AIO_H
-
-#include "qemu-common.h"
-#include "qemu/queue.h"
-#include "qemu/event_notifier.h"
-
-typedef struct BlockDriverAIOCB BlockDriverAIOCB;
-typedef void BlockDriverCompletionFunc(void *opaque, int ret);
-
-typedef struct AIOCBInfo {
-    void (*cancel)(BlockDriverAIOCB *acb);
-    size_t aiocb_size;
-} AIOCBInfo;
-
-struct BlockDriverAIOCB {
-    const AIOCBInfo *aiocb_info;
-    BlockDriverState *bs;
-    BlockDriverCompletionFunc *cb;
-    void *opaque;
-};
-
-void *qemu_aio_get(const AIOCBInfo *aiocb_info, BlockDriverState *bs,
-                   BlockDriverCompletionFunc *cb, void *opaque);
-void qemu_aio_release(void *p);
-
-typedef struct AioHandler AioHandler;
-typedef void QEMUBHFunc(void *opaque);
-typedef void IOHandler(void *opaque);
-
-typedef struct AioContext {
-    GSource source;
-
-    /* The list of registered AIO handlers */
-    QLIST_HEAD(, AioHandler) aio_handlers;
-
-    /* This is a simple lock used to protect the aio_handlers list.
-     * Specifically, it's used to ensure that no callbacks are removed while
-     * we're walking and dispatching callbacks.
-     */
-    int walking_handlers;
-
-    /* Anchor of the list of Bottom Halves belonging to the context */
-    struct QEMUBH *first_bh;
-
-    /* A simple lock used to protect the first_bh list, and ensure that
-     * no callbacks are removed while we're walking and dispatching callbacks.
-     */
-    int walking_bh;
-
-    /* Used for aio_notify.  */
-    EventNotifier notifier;
-
-    /* GPollFDs for aio_poll() */
-    GArray *pollfds;
-
-    /* Thread pool for performing work and receiving completion callbacks */
-    struct ThreadPool *thread_pool;
-} AioContext;
-
-/* Returns 1 if there are still outstanding AIO requests; 0 otherwise */
-typedef int (AioFlushEventNotifierHandler)(EventNotifier *e);
-
-/**
- * aio_context_new: Allocate a new AioContext.
- *
- * AioContext provide a mini event-loop that can be waited on synchronously.
- * They also provide bottom halves, a service to execute a piece of code
- * as soon as possible.
- */
-AioContext *aio_context_new(void);
-
-/**
- * aio_context_ref:
- * @ctx: The AioContext to operate on.
- *
- * Add a reference to an AioContext.
- */
-void aio_context_ref(AioContext *ctx);
-
-/**
- * aio_context_unref:
- * @ctx: The AioContext to operate on.
- *
- * Drop a reference to an AioContext.
- */
-void aio_context_unref(AioContext *ctx);
-
-/**
- * aio_bh_new: Allocate a new bottom half structure.
- *
- * Bottom halves are lightweight callbacks whose invocation is guaranteed
- * to be wait-free, thread-safe and signal-safe.  The #QEMUBH structure
- * is opaque and must be allocated prior to its use.
- */
-QEMUBH *aio_bh_new(AioContext *ctx, QEMUBHFunc *cb, void *opaque);
-
-/**
- * aio_notify: Force processing of pending events.
- *
- * Similar to signaling a condition variable, aio_notify forces
- * aio_wait to exit, so that the next call will re-examine pending events.
- * The caller of aio_notify will usually call aio_wait again very soon,
- * or go through another iteration of the GLib main loop.  Hence, aio_notify
- * also has the side effect of recalculating the sets of file descriptors
- * that the main loop waits for.
- *
- * Calling aio_notify is rarely necessary, because for example scheduling
- * a bottom half calls it already.
- */
-void aio_notify(AioContext *ctx);
-
-/**
- * aio_bh_poll: Poll bottom halves for an AioContext.
- *
- * These are internal functions used by the QEMU main loop.
- */
-int aio_bh_poll(AioContext *ctx);
-
-/**
- * qemu_bh_schedule: Schedule a bottom half.
- *
- * Scheduling a bottom half interrupts the main loop and causes the
- * execution of the callback that was passed to qemu_bh_new.
- *
- * Bottom halves that are scheduled from a bottom half handler are instantly
- * invoked.  This can create an infinite loop if a bottom half handler
- * schedules itself.
- *
- * @bh: The bottom half to be scheduled.
- */
-void qemu_bh_schedule(QEMUBH *bh);
-
-/**
- * qemu_bh_cancel: Cancel execution of a bottom half.
- *
- * Canceling execution of a bottom half undoes the effect of calls to
- * qemu_bh_schedule without freeing its resources yet.  While cancellation
- * itself is also wait-free and thread-safe, it can of course race with the
- * loop that executes bottom halves unless you are holding the iothread
- * mutex.  This makes it mostly useless if you are not holding the mutex.
- *
- * @bh: The bottom half to be canceled.
- */
-void qemu_bh_cancel(QEMUBH *bh);
-
-/**
- *qemu_bh_delete: Cancel execution of a bottom half and free its resources.
- *
- * Deleting a bottom half frees the memory that was allocated for it by
- * qemu_bh_new.  It also implies canceling the bottom half if it was
- * scheduled.
- *
- * @bh: The bottom half to be deleted.
- */
-void qemu_bh_delete(QEMUBH *bh);
-
-/* Return whether there are any pending callbacks from the GSource
- * attached to the AioContext.
- *
- * This is used internally in the implementation of the GSource.
- */
-bool aio_pending(AioContext *ctx);
-
-/* Progress in completing AIO work to occur.  This can issue new pending
- * aio as a result of executing I/O completion or bh callbacks.
- *
- * If there is no pending AIO operation or completion (bottom half),
- * return false.  If there are pending AIO operations of bottom halves,
- * return true.
- *
- * If there are no pending bottom halves, but there are pending AIO
- * operations, it may not be possible to make any progress without
- * blocking.  If @blocking is true, this function will wait until one
- * or more AIO events have completed, to ensure something has moved
- * before returning.
- */
-bool aio_poll(AioContext *ctx, bool blocking);
-
-#ifdef CONFIG_POSIX
-/* Returns 1 if there are still outstanding AIO requests; 0 otherwise */
-typedef int (AioFlushHandler)(void *opaque);
-
-/* Register a file descriptor and associated callbacks.  Behaves very similarly
- * to qemu_set_fd_handler2.  Unlike qemu_set_fd_handler2, these callbacks will
- * be invoked when using qemu_aio_wait().
- *
- * Code that invokes AIO completion functions should rely on this function
- * instead of qemu_set_fd_handler[2].
- */
-void aio_set_fd_handler(AioContext *ctx,
-                        int fd,
-                        IOHandler *io_read,
-                        IOHandler *io_write,
-                        AioFlushHandler *io_flush,
-                        void *opaque);
-#endif
-
-/* Register an event notifier and associated callbacks.  Behaves very similarly
- * to event_notifier_set_handler.  Unlike event_notifier_set_handler, these callbacks
- * will be invoked when using qemu_aio_wait().
- *
- * Code that invokes AIO completion functions should rely on this function
- * instead of event_notifier_set_handler.
- */
-void aio_set_event_notifier(AioContext *ctx,
-                            EventNotifier *notifier,
-                            EventNotifierHandler *io_read,
-                            AioFlushEventNotifierHandler *io_flush);
-
-/* Return a GSource that lets the main loop poll the file descriptors attached
- * to this AioContext.
- */
-GSource *aio_get_g_source(AioContext *ctx);
-
-/* Return the ThreadPool bound to this AioContext */
-struct ThreadPool *aio_get_thread_pool(AioContext *ctx);
-
-/* Functions to operate on the main QEMU AioContext.  */
-
-bool qemu_aio_wait(void);
-void qemu_aio_set_event_notifier(EventNotifier *notifier,
-                                 EventNotifierHandler *io_read,
-                                 AioFlushEventNotifierHandler *io_flush);
-
-#ifdef CONFIG_POSIX
-void qemu_aio_set_fd_handler(int fd,
-                             IOHandler *io_read,
-                             IOHandler *io_write,
-                             AioFlushHandler *io_flush,
-                             void *opaque);
-#endif
-
-#endif
diff --git a/contrib/qemu/include/block/block.h b/contrib/qemu/include/block/block.h
deleted file mode 100644
index b6b9014a9ce..00000000000
--- a/contrib/qemu/include/block/block.h
+++ /dev/null
@@ -1,443 +0,0 @@
-#ifndef BLOCK_H
-#define BLOCK_H
-
-#include "block/aio.h"
-#include "qemu-common.h"
-#include "qemu/option.h"
-#include "block/coroutine.h"
-#include "qapi/qmp/qobject.h"
-#include "qapi-types.h"
-
-/* block.c */
-typedef struct BlockDriver BlockDriver;
-typedef struct BlockJob BlockJob;
-
-typedef struct BlockDriverInfo {
-    /* in bytes, 0 if irrelevant */
-    int cluster_size;
-    /* offset at which the VM state can be saved (0 if not possible) */
-    int64_t vm_state_offset;
-    bool is_dirty;
-} BlockDriverInfo;
-
-typedef struct BlockFragInfo {
-    uint64_t allocated_clusters;
-    uint64_t total_clusters;
-    uint64_t fragmented_clusters;
-    uint64_t compressed_clusters;
-} BlockFragInfo;
-
-/* Callbacks for block device models */
-typedef struct BlockDevOps {
-    /*
-     * Runs when virtual media changed (monitor commands eject, change)
-     * Argument load is true on load and false on eject.
-     * Beware: doesn't run when a host device's physical media
-     * changes.  Sure would be useful if it did.
-     * Device models with removable media must implement this callback.
-     */
-    void (*change_media_cb)(void *opaque, bool load);
-    /*
-     * Runs when an eject request is issued from the monitor, the tray
-     * is closed, and the medium is locked.
-     * Device models that do not implement is_medium_locked will not need
-     * this callback.  Device models that can lock the medium or tray might
-     * want to implement the callback and unlock the tray when "force" is
-     * true, even if they do not support eject requests.
-     */
-    void (*eject_request_cb)(void *opaque, bool force);
-    /*
-     * Is the virtual tray open?
-     * Device models implement this only when the device has a tray.
-     */
-    bool (*is_tray_open)(void *opaque);
-    /*
-     * Is the virtual medium locked into the device?
-     * Device models implement this only when device has such a lock.
-     */
-    bool (*is_medium_locked)(void *opaque);
-    /*
-     * Runs when the size changed (e.g. monitor command block_resize)
-     */
-    void (*resize_cb)(void *opaque);
-} BlockDevOps;
-
-#define BDRV_O_RDWR        0x0002
-#define BDRV_O_SNAPSHOT    0x0008 /* open the file read only and save writes in a snapshot */
-#define BDRV_O_NOCACHE     0x0020 /* do not use the host page cache */
-#define BDRV_O_CACHE_WB    0x0040 /* use write-back caching */
-#define BDRV_O_NATIVE_AIO  0x0080 /* use native AIO instead of the thread pool */
-#define BDRV_O_NO_BACKING  0x0100 /* don't open the backing file */
-#define BDRV_O_NO_FLUSH    0x0200 /* disable flushing on this disk */
-#define BDRV_O_COPY_ON_READ 0x0400 /* copy read backing sectors into image */
-#define BDRV_O_INCOMING    0x0800  /* consistency hint for incoming migration */
-#define BDRV_O_CHECK       0x1000  /* open solely for consistency check */
-#define BDRV_O_ALLOW_RDWR  0x2000  /* allow reopen to change from r/o to r/w */
-#define BDRV_O_UNMAP       0x4000  /* execute guest UNMAP/TRIM operations */
-
-#define BDRV_O_CACHE_MASK  (BDRV_O_NOCACHE | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH)
-
-#define BDRV_SECTOR_BITS   9
-#define BDRV_SECTOR_SIZE   (1ULL << BDRV_SECTOR_BITS)
-#define BDRV_SECTOR_MASK   ~(BDRV_SECTOR_SIZE - 1)
-
-typedef enum {
-    BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
-} BlockErrorAction;
-
-typedef QSIMPLEQ_HEAD(BlockReopenQueue, BlockReopenQueueEntry) BlockReopenQueue;
-
-typedef struct BDRVReopenState {
-    BlockDriverState *bs;
-    int flags;
-    void *opaque;
-} BDRVReopenState;
-
-
-void bdrv_iostatus_enable(BlockDriverState *bs);
-void bdrv_iostatus_reset(BlockDriverState *bs);
-void bdrv_iostatus_disable(BlockDriverState *bs);
-bool bdrv_iostatus_is_enabled(const BlockDriverState *bs);
-void bdrv_iostatus_set_err(BlockDriverState *bs, int error);
-void bdrv_info_print(Monitor *mon, const QObject *data);
-void bdrv_info(Monitor *mon, QObject **ret_data);
-void bdrv_stats_print(Monitor *mon, const QObject *data);
-void bdrv_info_stats(Monitor *mon, QObject **ret_data);
-
-/* disk I/O throttling */
-void bdrv_io_limits_enable(BlockDriverState *bs);
-void bdrv_io_limits_disable(BlockDriverState *bs);
-bool bdrv_io_limits_enabled(BlockDriverState *bs);
-
-void bdrv_init(void);
-void bdrv_init_with_whitelist(void);
-BlockDriver *bdrv_find_protocol(const char *filename,
-                                bool allow_protocol_prefix);
-BlockDriver *bdrv_find_format(const char *format_name);
-BlockDriver *bdrv_find_whitelisted_format(const char *format_name,
-                                          bool readonly);
-int bdrv_create(BlockDriver *drv, const char* filename,
-    QEMUOptionParameter *options);
-int bdrv_create_file(const char* filename, QEMUOptionParameter *options);
-BlockDriverState *bdrv_new(const char *device_name);
-void bdrv_make_anon(BlockDriverState *bs);
-void bdrv_swap(BlockDriverState *bs_new, BlockDriverState *bs_old);
-void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top);
-void bdrv_delete(BlockDriverState *bs);
-int bdrv_parse_cache_flags(const char *mode, int *flags);
-int bdrv_parse_discard_flags(const char *mode, int *flags);
-int bdrv_file_open(BlockDriverState **pbs, const char *filename,
-                   QDict *options, int flags);
-int bdrv_open_backing_file(BlockDriverState *bs, QDict *options);
-int bdrv_open(BlockDriverState *bs, const char *filename, QDict *options,
-              int flags, BlockDriver *drv);
-BlockReopenQueue *bdrv_reopen_queue(BlockReopenQueue *bs_queue,
-                                    BlockDriverState *bs, int flags);
-int bdrv_reopen_multiple(BlockReopenQueue *bs_queue, Error **errp);
-int bdrv_reopen(BlockDriverState *bs, int bdrv_flags, Error **errp);
-int bdrv_reopen_prepare(BDRVReopenState *reopen_state,
-                        BlockReopenQueue *queue, Error **errp);
-void bdrv_reopen_commit(BDRVReopenState *reopen_state);
-void bdrv_reopen_abort(BDRVReopenState *reopen_state);
-void bdrv_close(BlockDriverState *bs);
-void bdrv_add_close_notifier(BlockDriverState *bs, Notifier *notify);
-int bdrv_attach_dev(BlockDriverState *bs, void *dev);
-void bdrv_attach_dev_nofail(BlockDriverState *bs, void *dev);
-void bdrv_detach_dev(BlockDriverState *bs, void *dev);
-void *bdrv_get_attached_dev(BlockDriverState *bs);
-void bdrv_set_dev_ops(BlockDriverState *bs, const BlockDevOps *ops,
-                      void *opaque);
-void bdrv_dev_eject_request(BlockDriverState *bs, bool force);
-bool bdrv_dev_has_removable_media(BlockDriverState *bs);
-bool bdrv_dev_is_tray_open(BlockDriverState *bs);
-bool bdrv_dev_is_medium_locked(BlockDriverState *bs);
-int bdrv_read(BlockDriverState *bs, int64_t sector_num,
-              uint8_t *buf, int nb_sectors);
-int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
-                          uint8_t *buf, int nb_sectors);
-int bdrv_write(BlockDriverState *bs, int64_t sector_num,
-               const uint8_t *buf, int nb_sectors);
-int bdrv_writev(BlockDriverState *bs, int64_t sector_num, QEMUIOVector *qiov);
-int bdrv_pread(BlockDriverState *bs, int64_t offset,
-               void *buf, int count);
-int bdrv_pwrite(BlockDriverState *bs, int64_t offset,
-                const void *buf, int count);
-int bdrv_pwritev(BlockDriverState *bs, int64_t offset, QEMUIOVector *qiov);
-int bdrv_pwrite_sync(BlockDriverState *bs, int64_t offset,
-    const void *buf, int count);
-int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num,
-    int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
-    int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num,
-    int nb_sectors, QEMUIOVector *qiov);
-/*
- * Efficiently zero a region of the disk image.  Note that this is a regular
- * I/O request like read or write and should have a reasonable size.  This
- * function is not suitable for zeroing the entire image in a single request
- * because it may allocate memory for the entire region.
- */
-int coroutine_fn bdrv_co_write_zeroes(BlockDriverState *bs, int64_t sector_num,
-    int nb_sectors);
-int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t sector_num,
-    int nb_sectors, int *pnum);
-int coroutine_fn bdrv_co_is_allocated_above(BlockDriverState *top,
-                                            BlockDriverState *base,
-                                            int64_t sector_num,
-                                            int nb_sectors, int *pnum);
-BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
-    const char *backing_file);
-int bdrv_get_backing_file_depth(BlockDriverState *bs);
-int bdrv_truncate(BlockDriverState *bs, int64_t offset);
-int64_t bdrv_getlength(BlockDriverState *bs);
-int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
-void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
-int bdrv_commit(BlockDriverState *bs);
-int bdrv_commit_all(void);
-int bdrv_change_backing_file(BlockDriverState *bs,
-    const char *backing_file, const char *backing_fmt);
-void bdrv_register(BlockDriver *bdrv);
-int bdrv_drop_intermediate(BlockDriverState *active, BlockDriverState *top,
-                           BlockDriverState *base);
-BlockDriverState *bdrv_find_overlay(BlockDriverState *active,
-                                    BlockDriverState *bs);
-BlockDriverState *bdrv_find_base(BlockDriverState *bs);
-
-
-typedef struct BdrvCheckResult {
-    int corruptions;
-    int leaks;
-    int check_errors;
-    int corruptions_fixed;
-    int leaks_fixed;
-    int64_t image_end_offset;
-    BlockFragInfo bfi;
-} BdrvCheckResult;
-
-typedef enum {
-    BDRV_FIX_LEAKS    = 1,
-    BDRV_FIX_ERRORS   = 2,
-} BdrvCheckMode;
-
-int bdrv_check(BlockDriverState *bs, BdrvCheckResult *res, BdrvCheckMode fix);
-
-/* async block I/O */
-typedef void BlockDriverDirtyHandler(BlockDriverState *bs, int64_t sector,
-                                     int sector_num);
-BlockDriverAIOCB *bdrv_aio_readv(BlockDriverState *bs, int64_t sector_num,
-                                 QEMUIOVector *iov, int nb_sectors,
-                                 BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_writev(BlockDriverState *bs, int64_t sector_num,
-                                  QEMUIOVector *iov, int nb_sectors,
-                                  BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_flush(BlockDriverState *bs,
-                                 BlockDriverCompletionFunc *cb, void *opaque);
-BlockDriverAIOCB *bdrv_aio_discard(BlockDriverState *bs,
-                                   int64_t sector_num, int nb_sectors,
-                                   BlockDriverCompletionFunc *cb, void *opaque);
-void bdrv_aio_cancel(BlockDriverAIOCB *acb);
-
-typedef struct BlockRequest {
-    /* Fields to be filled by multiwrite caller */
-    int64_t sector;
-    int nb_sectors;
-    QEMUIOVector *qiov;
-    BlockDriverCompletionFunc *cb;
-    void *opaque;
-
-    /* Filled by multiwrite implementation */
-    int error;
-} BlockRequest;
-
-int bdrv_aio_multiwrite(BlockDriverState *bs, BlockRequest *reqs,
-    int num_reqs);
-
-/* sg packet commands */
-int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf);
-BlockDriverAIOCB *bdrv_aio_ioctl(BlockDriverState *bs,
-        unsigned long int req, void *buf,
-        BlockDriverCompletionFunc *cb, void *opaque);
-
-/* Invalidate any cached metadata used by image formats */
-void bdrv_invalidate_cache(BlockDriverState *bs);
-void bdrv_invalidate_cache_all(void);
-
-void bdrv_clear_incoming_migration_all(void);
-
-/* Ensure contents are flushed to disk.  */
-int bdrv_flush(BlockDriverState *bs);
-int coroutine_fn bdrv_co_flush(BlockDriverState *bs);
-int bdrv_flush_all(void);
-void bdrv_close_all(void);
-void bdrv_drain_all(void);
-
-int bdrv_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
-int bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, int nb_sectors);
-int bdrv_has_zero_init_1(BlockDriverState *bs);
-int bdrv_has_zero_init(BlockDriverState *bs);
-int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
-                      int *pnum);
-int bdrv_is_allocated_above(BlockDriverState *top, BlockDriverState *base,
-                            int64_t sector_num, int nb_sectors, int *pnum);
-
-void bdrv_set_on_error(BlockDriverState *bs, BlockdevOnError on_read_error,
-                       BlockdevOnError on_write_error);
-BlockdevOnError bdrv_get_on_error(BlockDriverState *bs, bool is_read);
-BlockErrorAction bdrv_get_error_action(BlockDriverState *bs, bool is_read, int error);
-void bdrv_error_action(BlockDriverState *bs, BlockErrorAction action,
-                       bool is_read, int error);
-int bdrv_is_read_only(BlockDriverState *bs);
-int bdrv_is_sg(BlockDriverState *bs);
-int bdrv_enable_write_cache(BlockDriverState *bs);
-void bdrv_set_enable_write_cache(BlockDriverState *bs, bool wce);
-int bdrv_is_inserted(BlockDriverState *bs);
-int bdrv_media_changed(BlockDriverState *bs);
-void bdrv_lock_medium(BlockDriverState *bs, bool locked);
-void bdrv_eject(BlockDriverState *bs, bool eject_flag);
-const char *bdrv_get_format_name(BlockDriverState *bs);
-BlockDriverState *bdrv_find(const char *name);
-BlockDriverState *bdrv_next(BlockDriverState *bs);
-void bdrv_iterate(void (*it)(void *opaque, BlockDriverState *bs),
-                  void *opaque);
-int bdrv_is_encrypted(BlockDriverState *bs);
-int bdrv_key_required(BlockDriverState *bs);
-int bdrv_set_key(BlockDriverState *bs, const char *key);
-int bdrv_query_missing_keys(void);
-void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
-                         void *opaque);
-const char *bdrv_get_device_name(BlockDriverState *bs);
-int bdrv_get_flags(BlockDriverState *bs);
-int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
-                          const uint8_t *buf, int nb_sectors);
-int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
-void bdrv_round_to_clusters(BlockDriverState *bs,
-                            int64_t sector_num, int nb_sectors,
-                            int64_t *cluster_sector_num,
-                            int *cluster_nb_sectors);
-
-const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
-void bdrv_get_backing_filename(BlockDriverState *bs,
-                               char *filename, int filename_size);
-void bdrv_get_full_backing_filename(BlockDriverState *bs,
-                                    char *dest, size_t sz);
-int bdrv_is_snapshot(BlockDriverState *bs);
-
-int path_is_absolute(const char *path);
-void path_combine(char *dest, int dest_size,
-                  const char *base_path,
-                  const char *filename);
-
-int bdrv_writev_vmstate(BlockDriverState *bs, QEMUIOVector *qiov, int64_t pos);
-int bdrv_save_vmstate(BlockDriverState *bs, const uint8_t *buf,
-                      int64_t pos, int size);
-
-int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
-                      int64_t pos, int size);
-
-void bdrv_img_create(const char *filename, const char *fmt,
-                     const char *base_filename, const char *base_fmt,
-                     char *options, uint64_t img_size, int flags,
-                     Error **errp, bool quiet);
-
-void bdrv_set_buffer_alignment(BlockDriverState *bs, int align);
-void *qemu_blockalign(BlockDriverState *bs, size_t size);
-bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov);
-
-struct HBitmapIter;
-void bdrv_set_dirty_tracking(BlockDriverState *bs, int granularity);
-int bdrv_get_dirty(BlockDriverState *bs, int64_t sector);
-void bdrv_set_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
-void bdrv_reset_dirty(BlockDriverState *bs, int64_t cur_sector, int nr_sectors);
-void bdrv_dirty_iter_init(BlockDriverState *bs, struct HBitmapIter *hbi);
-int64_t bdrv_get_dirty_count(BlockDriverState *bs);
-
-void bdrv_enable_copy_on_read(BlockDriverState *bs);
-void bdrv_disable_copy_on_read(BlockDriverState *bs);
-
-void bdrv_set_in_use(BlockDriverState *bs, int in_use);
-int bdrv_in_use(BlockDriverState *bs);
-
-#ifdef CONFIG_LINUX_AIO
-int raw_get_aio_fd(BlockDriverState *bs);
-#else
-static inline int raw_get_aio_fd(BlockDriverState *bs)
-{
-    return -ENOTSUP;
-}
-#endif
-
-enum BlockAcctType {
-    BDRV_ACCT_READ,
-    BDRV_ACCT_WRITE,
-    BDRV_ACCT_FLUSH,
-    BDRV_MAX_IOTYPE,
-};
-
-typedef struct BlockAcctCookie {
-    int64_t bytes;
-    int64_t start_time_ns;
-    enum BlockAcctType type;
-} BlockAcctCookie;
-
-void bdrv_acct_start(BlockDriverState *bs, BlockAcctCookie *cookie,
-        int64_t bytes, enum BlockAcctType type);
-void bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie);
-
-typedef enum {
-    BLKDBG_L1_UPDATE,
-
-    BLKDBG_L1_GROW_ALLOC_TABLE,
-    BLKDBG_L1_GROW_WRITE_TABLE,
-    BLKDBG_L1_GROW_ACTIVATE_TABLE,
-
-    BLKDBG_L2_LOAD,
-    BLKDBG_L2_UPDATE,
-    BLKDBG_L2_UPDATE_COMPRESSED,
-    BLKDBG_L2_ALLOC_COW_READ,
-    BLKDBG_L2_ALLOC_WRITE,
-
-    BLKDBG_READ_AIO,
-    BLKDBG_READ_BACKING_AIO,
-    BLKDBG_READ_COMPRESSED,
-
-    BLKDBG_WRITE_AIO,
-    BLKDBG_WRITE_COMPRESSED,
-
-    BLKDBG_VMSTATE_LOAD,
-    BLKDBG_VMSTATE_SAVE,
-
-    BLKDBG_COW_READ,
-    BLKDBG_COW_WRITE,
-
-    BLKDBG_REFTABLE_LOAD,
-    BLKDBG_REFTABLE_GROW,
-
-    BLKDBG_REFBLOCK_LOAD,
-    BLKDBG_REFBLOCK_UPDATE,
-    BLKDBG_REFBLOCK_UPDATE_PART,
-    BLKDBG_REFBLOCK_ALLOC,
-    BLKDBG_REFBLOCK_ALLOC_HOOKUP,
-    BLKDBG_REFBLOCK_ALLOC_WRITE,
-    BLKDBG_REFBLOCK_ALLOC_WRITE_BLOCKS,
-    BLKDBG_REFBLOCK_ALLOC_WRITE_TABLE,
-    BLKDBG_REFBLOCK_ALLOC_SWITCH_TABLE,
-
-    BLKDBG_CLUSTER_ALLOC,
-    BLKDBG_CLUSTER_ALLOC_BYTES,
-    BLKDBG_CLUSTER_FREE,
-
-    BLKDBG_FLUSH_TO_OS,
-    BLKDBG_FLUSH_TO_DISK,
-
-    BLKDBG_EVENT_MAX,
-} BlkDebugEvent;
-
-#define BLKDBG_EVENT(bs, evt) bdrv_debug_event(bs, evt)
-void bdrv_debug_event(BlockDriverState *bs, BlkDebugEvent event);
-
-int bdrv_debug_breakpoint(BlockDriverState *bs, const char *event,
-                           const char *tag);
-int bdrv_debug_resume(BlockDriverState *bs, const char *tag);
-bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag);
-
-#endif
diff --git a/contrib/qemu/include/block/block_int.h b/contrib/qemu/include/block/block_int.h
deleted file mode 100644
index c6ac871e210..00000000000
--- a/contrib/qemu/include/block/block_int.h
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * QEMU System Emulator block driver
- *
- * Copyright (c) 2003 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef BLOCK_INT_H
-#define BLOCK_INT_H
-
-#include "block/block.h"
-#include "qemu/option.h"
-#include "qemu/queue.h"
-#include "block/coroutine.h"
-#include "qemu/timer.h"
-#include "qapi-types.h"
-#include "qapi/qmp/qerror.h"
-#include "monitor/monitor.h"
-#include "qemu/hbitmap.h"
-#include "block/snapshot.h"
-
-#define BLOCK_FLAG_ENCRYPT          1
-#define BLOCK_FLAG_COMPAT6          4
-#define BLOCK_FLAG_LAZY_REFCOUNTS   8
-
-#define BLOCK_IO_LIMIT_READ     0
-#define BLOCK_IO_LIMIT_WRITE    1
-#define BLOCK_IO_LIMIT_TOTAL    2
-
-#define BLOCK_IO_SLICE_TIME     100000000
-#define NANOSECONDS_PER_SECOND  1000000000.0
-
-#define BLOCK_OPT_SIZE              "size"
-#define BLOCK_OPT_ENCRYPT           "encryption"
-#define BLOCK_OPT_COMPAT6           "compat6"
-#define BLOCK_OPT_BACKING_FILE      "backing_file"
-#define BLOCK_OPT_BACKING_FMT       "backing_fmt"
-#define BLOCK_OPT_CLUSTER_SIZE      "cluster_size"
-#define BLOCK_OPT_TABLE_SIZE        "table_size"
-#define BLOCK_OPT_PREALLOC          "preallocation"
-#define BLOCK_OPT_SUBFMT            "subformat"
-#define BLOCK_OPT_COMPAT_LEVEL      "compat"
-#define BLOCK_OPT_LAZY_REFCOUNTS    "lazy_refcounts"
-#define BLOCK_OPT_ADAPTER_TYPE      "adapter_type"
-
-typedef struct BdrvTrackedRequest {
-    BlockDriverState *bs;
-    int64_t sector_num;
-    int nb_sectors;
-    bool is_write;
-    QLIST_ENTRY(BdrvTrackedRequest) list;
-    Coroutine *co; /* owner, used for deadlock detection */
-    CoQueue wait_queue; /* coroutines blocked on this request */
-} BdrvTrackedRequest;
-
-
-typedef struct BlockIOLimit {
-    int64_t bps[3];
-    int64_t iops[3];
-} BlockIOLimit;
-
-typedef struct BlockIOBaseValue {
-    uint64_t bytes[2];
-    uint64_t ios[2];
-} BlockIOBaseValue;
-
-struct BlockDriver {
-    const char *format_name;
-    int instance_size;
-    int (*bdrv_probe)(const uint8_t *buf, int buf_size, const char *filename);
-    int (*bdrv_probe_device)(const char *filename);
-
-    /* Any driver implementing this callback is expected to be able to handle
-     * NULL file names in its .bdrv_open() implementation */
-    void (*bdrv_parse_filename)(const char *filename, QDict *options, Error **errp);
-
-    /* For handling image reopen for split or non-split files */
-    int (*bdrv_reopen_prepare)(BDRVReopenState *reopen_state,
-                               BlockReopenQueue *queue, Error **errp);
-    void (*bdrv_reopen_commit)(BDRVReopenState *reopen_state);
-    void (*bdrv_reopen_abort)(BDRVReopenState *reopen_state);
-
-    int (*bdrv_open)(BlockDriverState *bs, QDict *options, int flags);
-    int (*bdrv_file_open)(BlockDriverState *bs, QDict *options, int flags);
-    int (*bdrv_read)(BlockDriverState *bs, int64_t sector_num,
-                     uint8_t *buf, int nb_sectors);
-    int (*bdrv_write)(BlockDriverState *bs, int64_t sector_num,
-                      const uint8_t *buf, int nb_sectors);
-    void (*bdrv_close)(BlockDriverState *bs);
-    void (*bdrv_rebind)(BlockDriverState *bs);
-    int (*bdrv_create)(const char *filename, QEMUOptionParameter *options);
-    int (*bdrv_set_key)(BlockDriverState *bs, const char *key);
-    int (*bdrv_make_empty)(BlockDriverState *bs);
-    /* aio */
-    BlockDriverAIOCB *(*bdrv_aio_readv)(BlockDriverState *bs,
-        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
-        BlockDriverCompletionFunc *cb, void *opaque);
-    BlockDriverAIOCB *(*bdrv_aio_writev)(BlockDriverState *bs,
-        int64_t sector_num, QEMUIOVector *qiov, int nb_sectors,
-        BlockDriverCompletionFunc *cb, void *opaque);
-    BlockDriverAIOCB *(*bdrv_aio_flush)(BlockDriverState *bs,
-        BlockDriverCompletionFunc *cb, void *opaque);
-    BlockDriverAIOCB *(*bdrv_aio_discard)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors,
-        BlockDriverCompletionFunc *cb, void *opaque);
-
-    int coroutine_fn (*bdrv_co_readv)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-    int coroutine_fn (*bdrv_co_writev)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors, QEMUIOVector *qiov);
-    /*
-     * Efficiently zero a region of the disk image.  Typically an image format
-     * would use a compact metadata representation to implement this.  This
-     * function pointer may be NULL and .bdrv_co_writev() will be called
-     * instead.
-     */
-    int coroutine_fn (*bdrv_co_write_zeroes)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors);
-    int coroutine_fn (*bdrv_co_discard)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors);
-    int coroutine_fn (*bdrv_co_is_allocated)(BlockDriverState *bs,
-        int64_t sector_num, int nb_sectors, int *pnum);
-
-    /*
-     * Invalidate any cached meta-data.
-     */
-    void (*bdrv_invalidate_cache)(BlockDriverState *bs);
-
-    /*
-     * Flushes all data that was already written to the OS all the way down to
-     * the disk (for example raw-posix calls fsync()).
-     */
-    int coroutine_fn (*bdrv_co_flush_to_disk)(BlockDriverState *bs);
-
-    /*
-     * Flushes all internal caches to the OS. The data may still sit in a
-     * writeback cache of the host OS, but it will survive a crash of the qemu
-     * process.
-     */
-    int coroutine_fn (*bdrv_co_flush_to_os)(BlockDriverState *bs);
-
-    const char *protocol_name;
-    int (*bdrv_truncate)(BlockDriverState *bs, int64_t offset);
-    int64_t (*bdrv_getlength)(BlockDriverState *bs);
-    int64_t (*bdrv_get_allocated_file_size)(BlockDriverState *bs);
-    int (*bdrv_write_compressed)(BlockDriverState *bs, int64_t sector_num,
-                                 const uint8_t *buf, int nb_sectors);
-
-    int (*bdrv_snapshot_create)(BlockDriverState *bs,
-                                QEMUSnapshotInfo *sn_info);
-    int (*bdrv_snapshot_goto)(BlockDriverState *bs,
-                              const char *snapshot_id);
-    int (*bdrv_snapshot_delete)(BlockDriverState *bs, const char *snapshot_id);
-    int (*bdrv_snapshot_list)(BlockDriverState *bs,
-                              QEMUSnapshotInfo **psn_info);
-    int (*bdrv_snapshot_load_tmp)(BlockDriverState *bs,
-                                  const char *snapshot_name);
-    int (*bdrv_get_info)(BlockDriverState *bs, BlockDriverInfo *bdi);
-
-    int (*bdrv_save_vmstate)(BlockDriverState *bs, QEMUIOVector *qiov,
-                             int64_t pos);
-    int (*bdrv_load_vmstate)(BlockDriverState *bs, uint8_t *buf,
-                             int64_t pos, int size);
-
-    int (*bdrv_change_backing_file)(BlockDriverState *bs,
-        const char *backing_file, const char *backing_fmt);
-
-    /* removable device specific */
-    int (*bdrv_is_inserted)(BlockDriverState *bs);
-    int (*bdrv_media_changed)(BlockDriverState *bs);
-    void (*bdrv_eject)(BlockDriverState *bs, bool eject_flag);
-    void (*bdrv_lock_medium)(BlockDriverState *bs, bool locked);
-
-    /* to control generic scsi devices */
-    int (*bdrv_ioctl)(BlockDriverState *bs, unsigned long int req, void *buf);
-    BlockDriverAIOCB *(*bdrv_aio_ioctl)(BlockDriverState *bs,
-        unsigned long int req, void *buf,
-        BlockDriverCompletionFunc *cb, void *opaque);
-
-    /* List of options for creating images, terminated by name == NULL */
-    QEMUOptionParameter *create_options;
-
-
-    /*
-     * Returns 0 for completed check, -errno for internal errors.
-     * The check results are stored in result.
-     */
-    int (*bdrv_check)(BlockDriverState* bs, BdrvCheckResult *result,
-        BdrvCheckMode fix);
-
-    void (*bdrv_debug_event)(BlockDriverState *bs, BlkDebugEvent event);
-
-    /* TODO Better pass a option string/QDict/QemuOpts to add any rule? */
-    int (*bdrv_debug_breakpoint)(BlockDriverState *bs, const char *event,
-        const char *tag);
-    int (*bdrv_debug_resume)(BlockDriverState *bs, const char *tag);
-    bool (*bdrv_debug_is_suspended)(BlockDriverState *bs, const char *tag);
-
-    /*
-     * Returns 1 if newly created images are guaranteed to contain only
-     * zeros, 0 otherwise.
-     */
-    int (*bdrv_has_zero_init)(BlockDriverState *bs);
-
-    QLIST_ENTRY(BlockDriver) list;
-};
-
-/*
- * Note: the function bdrv_append() copies and swaps contents of
- * BlockDriverStates, so if you add new fields to this struct, please
- * inspect bdrv_append() to determine if the new fields need to be
- * copied as well.
- */
-struct BlockDriverState {
-    int64_t total_sectors; /* if we are reading a disk image, give its
-                              size in sectors */
-    int read_only; /* if true, the media is read only */
-    int open_flags; /* flags used to open the file, re-used for re-open */
-    int encrypted; /* if true, the media is encrypted */
-    int valid_key; /* if true, a valid encryption key has been set */
-    int sg;        /* if true, the device is a /dev/sg* */
-    int copy_on_read; /* if true, copy read backing sectors into image
-                         note this is a reference count */
-
-    BlockDriver *drv; /* NULL means no media */
-    void *opaque;
-
-    void *dev;                  /* attached device model, if any */
-    /* TODO change to DeviceState when all users are qdevified */
-    const BlockDevOps *dev_ops;
-    void *dev_opaque;
-
-    char filename[1024];
-    char backing_file[1024]; /* if non zero, the image is a diff of
-                                this file image */
-    char backing_format[16]; /* if non-zero and backing_file exists */
-    int is_temporary;
-
-    BlockDriverState *backing_hd;
-    BlockDriverState *file;
-
-    NotifierList close_notifiers;
-
-    /* Callback before write request is processed */
-    NotifierWithReturnList before_write_notifiers;
-
-    /* number of in-flight copy-on-read requests */
-    unsigned int copy_on_read_in_flight;
-
-    /* the time for latest disk I/O */
-    int64_t slice_start;
-    int64_t slice_end;
-    BlockIOLimit io_limits;
-    BlockIOBaseValue slice_submitted;
-    CoQueue      throttled_reqs;
-    QEMUTimer    *block_timer;
-    bool         io_limits_enabled;
-
-    /* I/O stats (display with "info blockstats"). */
-    uint64_t nr_bytes[BDRV_MAX_IOTYPE];
-    uint64_t nr_ops[BDRV_MAX_IOTYPE];
-    uint64_t total_time_ns[BDRV_MAX_IOTYPE];
-    uint64_t wr_highest_sector;
-
-    /* Whether the disk can expand beyond total_sectors */
-    int growable;
-
-    /* the memory alignment required for the buffers handled by this driver */
-    int buffer_alignment;
-
-    /* do we need to tell the quest if we have a volatile write cache? */
-    int enable_write_cache;
-
-    /* NOTE: the following infos are only hints for real hardware
-       drivers. They are not used by the block driver */
-    BlockdevOnError on_read_error, on_write_error;
-    bool iostatus_enabled;
-    BlockDeviceIoStatus iostatus;
-    char device_name[32];
-    HBitmap *dirty_bitmap;
-    int in_use; /* users other than guest access, eg. block migration */
-    QTAILQ_ENTRY(BlockDriverState) list;
-
-    QLIST_HEAD(, BdrvTrackedRequest) tracked_requests;
-
-    /* long-running background operation */
-    BlockJob *job;
-
-    QDict *options;
-};
-
-int get_tmp_filename(char *filename, int size);
-
-void bdrv_set_io_limits(BlockDriverState *bs,
-                        BlockIOLimit *io_limits);
-
-/**
- * bdrv_add_before_write_notifier:
- *
- * Register a callback that is invoked before write requests are processed but
- * after any throttling or waiting for overlapping requests.
- */
-void bdrv_add_before_write_notifier(BlockDriverState *bs,
-                                    NotifierWithReturn *notifier);
-
-/**
- * bdrv_get_aio_context:
- *
- * Returns: the currently bound #AioContext
- */
-AioContext *bdrv_get_aio_context(BlockDriverState *bs);
-
-#ifdef _WIN32
-int is_windows_drive(const char *filename);
-#endif
-void bdrv_emit_qmp_error_event(const BlockDriverState *bdrv,
-                               enum MonitorEvent ev,
-                               BlockErrorAction action, bool is_read);
-
-/**
- * stream_start:
- * @bs: Block device to operate on.
- * @base: Block device that will become the new base, or %NULL to
- * flatten the whole backing file chain onto @bs.
- * @base_id: The file name that will be written to @bs as the new
- * backing file if the job completes.  Ignored if @base is %NULL.
- * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @on_error: The action to take upon error.
- * @cb: Completion function for the job.
- * @opaque: Opaque pointer value passed to @cb.
- * @errp: Error object.
- *
- * Start a streaming operation on @bs.  Clusters that are unallocated
- * in @bs, but allocated in any image between @base and @bs (both
- * exclusive) will be written to @bs.  At the end of a successful
- * streaming job, the backing file of @bs will be changed to
- * @base_id in the written image and to @base in the live BlockDriverState.
- */
-void stream_start(BlockDriverState *bs, BlockDriverState *base,
-                  const char *base_id, int64_t speed, BlockdevOnError on_error,
-                  BlockDriverCompletionFunc *cb,
-                  void *opaque, Error **errp);
-
-/**
- * commit_start:
- * @bs: Top Block device
- * @base: Block device that will be written into, and become the new top
- * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @on_error: The action to take upon error.
- * @cb: Completion function for the job.
- * @opaque: Opaque pointer value passed to @cb.
- * @errp: Error object.
- *
- */
-void commit_start(BlockDriverState *bs, BlockDriverState *base,
-                 BlockDriverState *top, int64_t speed,
-                 BlockdevOnError on_error, BlockDriverCompletionFunc *cb,
-                 void *opaque, Error **errp);
-
-/*
- * mirror_start:
- * @bs: Block device to operate on.
- * @target: Block device to write to.
- * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @granularity: The chosen granularity for the dirty bitmap.
- * @buf_size: The amount of data that can be in flight at one time.
- * @mode: Whether to collapse all images in the chain to the target.
- * @on_source_error: The action to take upon error reading from the source.
- * @on_target_error: The action to take upon error writing to the target.
- * @cb: Completion function for the job.
- * @opaque: Opaque pointer value passed to @cb.
- * @errp: Error object.
- *
- * Start a mirroring operation on @bs.  Clusters that are allocated
- * in @bs will be written to @bs until the job is cancelled or
- * manually completed.  At the end of a successful mirroring job,
- * @bs will be switched to read from @target.
- */
-void mirror_start(BlockDriverState *bs, BlockDriverState *target,
-                  int64_t speed, int64_t granularity, int64_t buf_size,
-                  MirrorSyncMode mode, BlockdevOnError on_source_error,
-                  BlockdevOnError on_target_error,
-                  BlockDriverCompletionFunc *cb,
-                  void *opaque, Error **errp);
-
-/*
- * backup_start:
- * @bs: Block device to operate on.
- * @target: Block device to write to.
- * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @on_source_error: The action to take upon error reading from the source.
- * @on_target_error: The action to take upon error writing to the target.
- * @cb: Completion function for the job.
- * @opaque: Opaque pointer value passed to @cb.
- *
- * Start a backup operation on @bs.  Clusters in @bs are written to @target
- * until the job is cancelled or manually completed.
- */
-void backup_start(BlockDriverState *bs, BlockDriverState *target,
-                  int64_t speed, BlockdevOnError on_source_error,
-                  BlockdevOnError on_target_error,
-                  BlockDriverCompletionFunc *cb, void *opaque,
-                  Error **errp);
-
-#endif /* BLOCK_INT_H */
diff --git a/contrib/qemu/include/block/blockjob.h b/contrib/qemu/include/block/blockjob.h
deleted file mode 100644
index c290d07bba0..00000000000
--- a/contrib/qemu/include/block/blockjob.h
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * Declarations for long-running block device operations
- *
- * Copyright (c) 2011 IBM Corp.
- * Copyright (c) 2012 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#ifndef BLOCKJOB_H
-#define BLOCKJOB_H 1
-
-#include "block/block.h"
-
-/**
- * BlockJobType:
- *
- * A class type for block job objects.
- */
-typedef struct BlockJobType {
-    /** Derived BlockJob struct size */
-    size_t instance_size;
-
-    /** String describing the operation, part of query-block-jobs QMP API */
-    const char *job_type;
-
-    /** Optional callback for job types that support setting a speed limit */
-    void (*set_speed)(BlockJob *job, int64_t speed, Error **errp);
-
-    /** Optional callback for job types that need to forward I/O status reset */
-    void (*iostatus_reset)(BlockJob *job);
-
-    /**
-     * Optional callback for job types whose completion must be triggered
-     * manually.
-     */
-    void (*complete)(BlockJob *job, Error **errp);
-} BlockJobType;
-
-/**
- * BlockJob:
- *
- * Long-running operation on a BlockDriverState.
- */
-struct BlockJob {
-    /** The job type, including the job vtable.  */
-    const BlockJobType *job_type;
-
-    /** The block device on which the job is operating.  */
-    BlockDriverState *bs;
-
-    /**
-     * The coroutine that executes the job.  If not NULL, it is
-     * reentered when busy is false and the job is cancelled.
-     */
-    Coroutine *co;
-
-    /**
-     * Set to true if the job should cancel itself.  The flag must
-     * always be tested just before toggling the busy flag from false
-     * to true.  After a job has been cancelled, it should only yield
-     * if #qemu_aio_wait will ("sooner or later") reenter the coroutine.
-     */
-    bool cancelled;
-
-    /**
-     * Set to true if the job is either paused, or will pause itself
-     * as soon as possible (if busy == true).
-     */
-    bool paused;
-
-    /**
-     * Set to false by the job while it is in a quiescent state, where
-     * no I/O is pending and the job has yielded on any condition
-     * that is not detected by #qemu_aio_wait, such as a timer.
-     */
-    bool busy;
-
-    /** Status that is published by the query-block-jobs QMP API */
-    BlockDeviceIoStatus iostatus;
-
-    /** Offset that is published by the query-block-jobs QMP API */
-    int64_t offset;
-
-    /** Length that is published by the query-block-jobs QMP API */
-    int64_t len;
-
-    /** Speed that was set with @block_job_set_speed.  */
-    int64_t speed;
-
-    /** The completion function that will be called when the job completes.  */
-    BlockDriverCompletionFunc *cb;
-
-    /** The opaque value that is passed to the completion function.  */
-    void *opaque;
-};
-
-/**
- * block_job_create:
- * @job_type: The class object for the newly-created job.
- * @bs: The block
- * @speed: The maximum speed, in bytes per second, or 0 for unlimited.
- * @cb: Completion function for the job.
- * @opaque: Opaque pointer value passed to @cb.
- * @errp: Error object.
- *
- * Create a new long-running block device job and return it.  The job
- * will call @cb asynchronously when the job completes.  Note that
- * @bs may have been closed at the time the @cb it is called.  If
- * this is the case, the job may be reported as either cancelled or
- * completed.
- *
- * This function is not part of the public job interface; it should be
- * called from a wrapper that is specific to the job type.
- */
-void *block_job_create(const BlockJobType *job_type, BlockDriverState *bs,
-                       int64_t speed, BlockDriverCompletionFunc *cb,
-                       void *opaque, Error **errp);
-
-/**
- * block_job_sleep_ns:
- * @job: The job that calls the function.
- * @clock: The clock to sleep on.
- * @ns: How many nanoseconds to stop for.
- *
- * Put the job to sleep (assuming that it wasn't canceled) for @ns
- * nanoseconds.  Canceling the job will interrupt the wait immediately.
- */
-void block_job_sleep_ns(BlockJob *job, QEMUClock *clock, int64_t ns);
-
-/**
- * block_job_completed:
- * @job: The job being completed.
- * @ret: The status code.
- *
- * Call the completion function that was registered at creation time, and
- * free @job.
- */
-void block_job_completed(BlockJob *job, int ret);
-
-/**
- * block_job_set_speed:
- * @job: The job to set the speed for.
- * @speed: The new value
- * @errp: Error object.
- *
- * Set a rate-limiting parameter for the job; the actual meaning may
- * vary depending on the job type.
- */
-void block_job_set_speed(BlockJob *job, int64_t speed, Error **errp);
-
-/**
- * block_job_cancel:
- * @job: The job to be canceled.
- *
- * Asynchronously cancel the specified job.
- */
-void block_job_cancel(BlockJob *job);
-
-/**
- * block_job_complete:
- * @job: The job to be completed.
- * @errp: Error object.
- *
- * Asynchronously complete the specified job.
- */
-void block_job_complete(BlockJob *job, Error **errp);
-
-/**
- * block_job_is_cancelled:
- * @job: The job being queried.
- *
- * Returns whether the job is scheduled for cancellation.
- */
-bool block_job_is_cancelled(BlockJob *job);
-
-/**
- * block_job_query:
- * @job: The job to get information about.
- *
- * Return information about a job.
- */
-BlockJobInfo *block_job_query(BlockJob *job);
-
-/**
- * block_job_pause:
- * @job: The job to be paused.
- *
- * Asynchronously pause the specified job.
- */
-void block_job_pause(BlockJob *job);
-
-/**
- * block_job_resume:
- * @job: The job to be resumed.
- *
- * Resume the specified job.
- */
-void block_job_resume(BlockJob *job);
-
-/**
- * qobject_from_block_job:
- * @job: The job whose information is requested.
- *
- * Return a QDict corresponding to @job's query-block-jobs entry.
- */
-QObject *qobject_from_block_job(BlockJob *job);
-
-/**
- * block_job_ready:
- * @job: The job which is now ready to complete.
- *
- * Send a BLOCK_JOB_READY event for the specified job.
- */
-void block_job_ready(BlockJob *job);
-
-/**
- * block_job_is_paused:
- * @job: The job being queried.
- *
- * Returns whether the job is currently paused, or will pause
- * as soon as it reaches a sleeping point.
- */
-bool block_job_is_paused(BlockJob *job);
-
-/**
- * block_job_cancel_sync:
- * @job: The job to be canceled.
- *
- * Synchronously cancel the job.  The completion callback is called
- * before the function returns.  The job may actually complete
- * instead of canceling itself; the circumstances under which this
- * happens depend on the kind of job that is active.
- *
- * Returns the return value from the job if the job actually completed
- * during the call, or -ECANCELED if it was canceled.
- */
-int block_job_cancel_sync(BlockJob *job);
-
-/**
- * block_job_iostatus_reset:
- * @job: The job whose I/O status should be reset.
- *
- * Reset I/O status on @job and on BlockDriverState objects it uses,
- * other than job->bs.
- */
-void block_job_iostatus_reset(BlockJob *job);
-
-/**
- * block_job_error_action:
- * @job: The job to signal an error for.
- * @bs: The block device on which to set an I/O error.
- * @on_err: The error action setting.
- * @is_read: Whether the operation was a read.
- * @error: The error that was reported.
- *
- * Report an I/O error for a block job and possibly stop the VM.  Return the
- * action that was selected based on @on_err and @error.
- */
-BlockErrorAction block_job_error_action(BlockJob *job, BlockDriverState *bs,
-                                        BlockdevOnError on_err,
-                                        int is_read, int error);
-#endif
diff --git a/contrib/qemu/include/block/coroutine.h b/contrib/qemu/include/block/coroutine.h
deleted file mode 100644
index 377805a3b08..00000000000
--- a/contrib/qemu/include/block/coroutine.h
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * QEMU coroutine implementation
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- *  Stefan Hajnoczi    <stefanha@linux.vnet.ibm.com>
- *  Kevin Wolf         <kwolf@redhat.com>
- *
- * This work is licensed under the terms of the GNU LGPL, version 2 or later.
- * See the COPYING.LIB file in the top-level directory.
- *
- */
-
-#ifndef QEMU_COROUTINE_H
-#define QEMU_COROUTINE_H
-
-#include <stdbool.h>
-#include "qemu/queue.h"
-#include "qemu/timer.h"
-
-/**
- * Coroutines are a mechanism for stack switching and can be used for
- * cooperative userspace threading.  These functions provide a simple but
- * useful flavor of coroutines that is suitable for writing sequential code,
- * rather than callbacks, for operations that need to give up control while
- * waiting for events to complete.
- *
- * These functions are re-entrant and may be used outside the global mutex.
- */
-
-/**
- * Mark a function that executes in coroutine context
- *
- * Functions that execute in coroutine context cannot be called directly from
- * normal functions.  In the future it would be nice to enable compiler or
- * static checker support for catching such errors.  This annotation might make
- * it possible and in the meantime it serves as documentation.
- *
- * For example:
- *
- *   static void coroutine_fn foo(void) {
- *       ....
- *   }
- */
-#define coroutine_fn
-
-typedef struct Coroutine Coroutine;
-
-/**
- * Coroutine entry point
- *
- * When the coroutine is entered for the first time, opaque is passed in as an
- * argument.
- *
- * When this function returns, the coroutine is destroyed automatically and
- * execution continues in the caller who last entered the coroutine.
- */
-typedef void coroutine_fn CoroutineEntry(void *opaque);
-
-/**
- * Create a new coroutine
- *
- * Use qemu_coroutine_enter() to actually transfer control to the coroutine.
- */
-Coroutine *qemu_coroutine_create(CoroutineEntry *entry);
-
-/**
- * Transfer control to a coroutine
- *
- * The opaque argument is passed as the argument to the entry point when
- * entering the coroutine for the first time.  It is subsequently ignored.
- */
-void qemu_coroutine_enter(Coroutine *coroutine, void *opaque);
-
-/**
- * Transfer control back to a coroutine's caller
- *
- * This function does not return until the coroutine is re-entered using
- * qemu_coroutine_enter().
- */
-void coroutine_fn qemu_coroutine_yield(void);
-
-/**
- * Get the currently executing coroutine
- */
-Coroutine *coroutine_fn qemu_coroutine_self(void);
-
-/**
- * Return whether or not currently inside a coroutine
- *
- * This can be used to write functions that work both when in coroutine context
- * and when not in coroutine context.  Note that such functions cannot use the
- * coroutine_fn annotation since they work outside coroutine context.
- */
-bool qemu_in_coroutine(void);
-
-
-
-/**
- * CoQueues are a mechanism to queue coroutines in order to continue executing
- * them later. They provide the fundamental primitives on which coroutine locks
- * are built.
- */
-typedef struct CoQueue {
-    QTAILQ_HEAD(, Coroutine) entries;
-    AioContext *ctx;
-} CoQueue;
-
-/**
- * Initialise a CoQueue. This must be called before any other operation is used
- * on the CoQueue.
- */
-void qemu_co_queue_init(CoQueue *queue);
-
-/**
- * Adds the current coroutine to the CoQueue and transfers control to the
- * caller of the coroutine.
- */
-void coroutine_fn qemu_co_queue_wait(CoQueue *queue);
-
-/**
- * Adds the current coroutine to the head of the CoQueue and transfers control to the
- * caller of the coroutine.
- */
-void coroutine_fn qemu_co_queue_wait_insert_head(CoQueue *queue);
-
-/**
- * Restarts the next coroutine in the CoQueue and removes it from the queue.
- *
- * Returns true if a coroutine was restarted, false if the queue is empty.
- */
-bool qemu_co_queue_next(CoQueue *queue);
-
-/**
- * Restarts all coroutines in the CoQueue and leaves the queue empty.
- */
-void qemu_co_queue_restart_all(CoQueue *queue);
-
-/**
- * Checks if the CoQueue is empty.
- */
-bool qemu_co_queue_empty(CoQueue *queue);
-
-
-/**
- * Provides a mutex that can be used to synchronise coroutines
- */
-typedef struct CoMutex {
-    bool locked;
-    CoQueue queue;
-} CoMutex;
-
-/**
- * Initialises a CoMutex. This must be called before any other operation is used
- * on the CoMutex.
- */
-void qemu_co_mutex_init(CoMutex *mutex);
-
-/**
- * Locks the mutex. If the lock cannot be taken immediately, control is
- * transferred to the caller of the current coroutine.
- */
-void coroutine_fn qemu_co_mutex_lock(CoMutex *mutex);
-
-/**
- * Unlocks the mutex and schedules the next coroutine that was waiting for this
- * lock to be run.
- */
-void coroutine_fn qemu_co_mutex_unlock(CoMutex *mutex);
-
-typedef struct CoRwlock {
-    bool writer;
-    int reader;
-    CoQueue queue;
-} CoRwlock;
-
-/**
- * Initialises a CoRwlock. This must be called before any other operation
- * is used on the CoRwlock
- */
-void qemu_co_rwlock_init(CoRwlock *lock);
-
-/**
- * Read locks the CoRwlock. If the lock cannot be taken immediately because
- * of a parallel writer, control is transferred to the caller of the current
- * coroutine.
- */
-void qemu_co_rwlock_rdlock(CoRwlock *lock);
-
-/**
- * Write Locks the mutex. If the lock cannot be taken immediately because
- * of a parallel reader, control is transferred to the caller of the current
- * coroutine.
- */
-void qemu_co_rwlock_wrlock(CoRwlock *lock);
-
-/**
- * Unlocks the read/write lock and schedules the next coroutine that was
- * waiting for this lock to be run.
- */
-void qemu_co_rwlock_unlock(CoRwlock *lock);
-
-/**
- * Yield the coroutine for a given duration
- *
- * Note this function uses timers and hence only works when a main loop is in
- * use.  See main-loop.h and do not use from qemu-tool programs.
- */
-void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns);
-
-/**
- * Yield until a file descriptor becomes readable
- *
- * Note that this function clobbers the handlers for the file descriptor.
- */
-void coroutine_fn yield_until_fd_readable(int fd);
-#endif /* QEMU_COROUTINE_H */
diff --git a/contrib/qemu/include/block/coroutine_int.h b/contrib/qemu/include/block/coroutine_int.h
deleted file mode 100644
index f133d65af86..00000000000
--- a/contrib/qemu/include/block/coroutine_int.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Coroutine internals
- *
- * Copyright (c) 2011 Kevin Wolf <kwolf@redhat.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef QEMU_COROUTINE_INT_H
-#define QEMU_COROUTINE_INT_H
-
-#include "qemu/queue.h"
-#include "block/coroutine.h"
-
-typedef enum {
-    COROUTINE_YIELD = 1,
-    COROUTINE_TERMINATE = 2,
-} CoroutineAction;
-
-struct Coroutine {
-    CoroutineEntry *entry;
-    void *entry_arg;
-    Coroutine *caller;
-    QSLIST_ENTRY(Coroutine) pool_next;
-
-    /* Coroutines that should be woken up when we yield or terminate */
-    QTAILQ_HEAD(, Coroutine) co_queue_wakeup;
-    QTAILQ_ENTRY(Coroutine) co_queue_next;
-};
-
-Coroutine *qemu_coroutine_new(void);
-void qemu_coroutine_delete(Coroutine *co);
-CoroutineAction qemu_coroutine_switch(Coroutine *from, Coroutine *to,
-                                      CoroutineAction action);
-void coroutine_fn qemu_co_queue_run_restart(Coroutine *co);
-
-#endif
diff --git a/contrib/qemu/include/block/snapshot.h b/contrib/qemu/include/block/snapshot.h
deleted file mode 100644
index eaf61f0326e..00000000000
--- a/contrib/qemu/include/block/snapshot.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Block layer snapshot related functions
- *
- * Copyright (c) 2003-2008 Fabrice Bellard
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef SNAPSHOT_H
-#define SNAPSHOT_H
-
-#include "qemu-common.h"
-
-typedef struct QEMUSnapshotInfo {
-    char id_str[128]; /* unique snapshot id */
-    /* the following fields are informative. They are not needed for
-       the consistency of the snapshot */
-    char name[256]; /* user chosen name */
-    uint64_t vm_state_size; /* VM state info size */
-    uint32_t date_sec; /* UTC date of the snapshot */
-    uint32_t date_nsec;
-    uint64_t vm_clock_nsec; /* VM clock relative to boot */
-} QEMUSnapshotInfo;
-
-int bdrv_snapshot_find(BlockDriverState *bs, QEMUSnapshotInfo *sn_info,
-                       const char *name);
-int bdrv_can_snapshot(BlockDriverState *bs);
-int bdrv_snapshot_create(BlockDriverState *bs,
-                         QEMUSnapshotInfo *sn_info);
-int bdrv_snapshot_goto(BlockDriverState *bs,
-                       const char *snapshot_id);
-int bdrv_snapshot_delete(BlockDriverState *bs, const char *snapshot_id);
-int bdrv_snapshot_list(BlockDriverState *bs,
-                       QEMUSnapshotInfo **psn_info);
-int bdrv_snapshot_load_tmp(BlockDriverState *bs,
-                           const char *snapshot_name);
-#endif