void commit_start(const char *job_id, BlockDriverState *bs,

                  BlockDriverState *base, BlockDriverState *top, int64_t speed,

                  BlockdevOnError on_error, const char *backing_file_str,

                  Error **errp)

{

    CommitBlockJob *s;

    BlockReopenQueue *reopen_queue = NULL;

    int orig_overlay_flags;

    int orig_base_flags;

    BlockDriverState *iter;

    BlockDriverState *overlay_bs;

    Error *local_err = NULL;

    int ret;



    assert(top != bs);

    if (top == base) {

        error_setg(errp, "Invalid files for merge: top and base are the same");

        return;

    }



    overlay_bs = bdrv_find_overlay(bs, top);



    if (overlay_bs == NULL) {

        error_setg(errp, "Could not find overlay image for %s:", top->filename);

        return;

    }



    /* FIXME Use real permissions */

    s = block_job_create(job_id, &commit_job_driver, bs, 0, BLK_PERM_ALL,

                         speed, BLOCK_JOB_DEFAULT, NULL, NULL, errp);

    if (!s) {

        return;

    }



    orig_base_flags    = bdrv_get_flags(base);

    orig_overlay_flags = bdrv_get_flags(overlay_bs);



    /* convert base & overlay_bs to r/w, if necessary */

    if (!(orig_base_flags & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, base, NULL,

                                         orig_base_flags | BDRV_O_RDWR);

    }

    if (!(orig_overlay_flags & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,

                                         orig_overlay_flags | BDRV_O_RDWR);

    }

    if (reopen_queue) {

        bdrv_reopen_multiple(bdrv_get_aio_context(bs), reopen_queue, &local_err);

        if (local_err != NULL) {

            error_propagate(errp, local_err);

            goto fail;

        }

    }





    /* Block all nodes between top and base, because they will

     * disappear from the chain after this operation. */

    assert(bdrv_chain_contains(top, base));

    for (iter = top; iter != backing_bs(base); iter = backing_bs(iter)) {

        /* FIXME Use real permissions */

        block_job_add_bdrv(&s->common, "intermediate node", iter, 0,

                           BLK_PERM_ALL, &error_abort);

    }

    /* overlay_bs must be blocked because it needs to be modified to

     * update the backing image string, but if it's the root node then

     * don't block it again */

    if (bs != overlay_bs) {

        /* FIXME Use real permissions */

        block_job_add_bdrv(&s->common, "overlay of top", overlay_bs, 0,

                           BLK_PERM_ALL, &error_abort);

    }



    /* FIXME Use real permissions */

    s->base = blk_new(0, BLK_PERM_ALL);

    ret = blk_insert_bs(s->base, base, errp);

    if (ret < 0) {

        goto fail;

    }



    /* FIXME Use real permissions */

    s->top = blk_new(0, BLK_PERM_ALL);

    ret = blk_insert_bs(s->top, top, errp);

    if (ret < 0) {

        goto fail;

    }



    s->active = bs;



    s->base_flags          = orig_base_flags;

    s->orig_overlay_flags  = orig_overlay_flags;



    s->backing_file_str = g_strdup(backing_file_str);



    s->on_error = on_error;



    trace_commit_start(bs, base, top, s);

    block_job_start(&s->common);

    return;



fail:

    if (s->base) {

        blk_unref(s->base);

    }

    if (s->top) {

        blk_unref(s->top);

    }

    block_job_unref(&s->common);

}

void commit_start(const char *job_id, BlockDriverState *bs,

                  BlockDriverState *base, BlockDriverState *top, int64_t speed,

                  BlockdevOnError on_error, const char *backing_file_str,

                  Error **errp)

{

    CommitBlockJob *s;

    BlockReopenQueue *reopen_queue = NULL;

    int orig_overlay_flags;

    int orig_base_flags;

    BlockDriverState *iter;

    BlockDriverState *overlay_bs;

    Error *local_err = NULL;

    int ret;



    assert(top != bs);

    if (top == base) {

        error_setg(errp, "Invalid files for merge: top and base are the same");

        return;

    }



    overlay_bs = bdrv_find_overlay(bs, top);



    if (overlay_bs == NULL) {

        error_setg(errp, "Could not find overlay image for %s:", top->filename);

        return;

    }



    

    s = block_job_create(job_id, &commit_job_driver, bs, 0, BLK_PERM_ALL,

                         speed, BLOCK_JOB_DEFAULT, NULL, NULL, errp);

    if (!s) {

        return;

    }



    orig_base_flags    = bdrv_get_flags(base);

    orig_overlay_flags = bdrv_get_flags(overlay_bs);



    

    if (!(orig_base_flags & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, base, NULL,

                                         orig_base_flags | BDRV_O_RDWR);

    }

    if (!(orig_overlay_flags & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,

                                         orig_overlay_flags | BDRV_O_RDWR);

    }

    if (reopen_queue) {

        bdrv_reopen_multiple(bdrv_get_aio_context(bs), reopen_queue, &local_err);

        if (local_err != NULL) {

            error_propagate(errp, local_err);

            goto fail;

        }

    }





    



    assert(bdrv_chain_contains(top, base));

    for (iter = top; iter != backing_bs(base); iter = backing_bs(iter)) {

        

        block_job_add_bdrv(&s->common, "intermediate node", iter, 0,

                           BLK_PERM_ALL, &error_abort);

    }

    





    if (bs != overlay_bs) {

        

        block_job_add_bdrv(&s->common, "overlay of top", overlay_bs, 0,

                           BLK_PERM_ALL, &error_abort);

    }



    

    s->base = blk_new(0, BLK_PERM_ALL);

    ret = blk_insert_bs(s->base, base, errp);

    if (ret < 0) {

        goto fail;

    }



    

    s->top = blk_new(0, BLK_PERM_ALL);

    ret = blk_insert_bs(s->top, top, errp);

    if (ret < 0) {

        goto fail;

    }



    s->active = bs;



    s->base_flags          = orig_base_flags;

    s->orig_overlay_flags  = orig_overlay_flags;



    s->backing_file_str = g_strdup(backing_file_str);



    s->on_error = on_error;



    trace_commit_start(bs, base, top, s);

    block_job_start(&s->common);

    return;



fail:

    if (s->base) {

        blk_unref(s->base);

    }

    if (s->top) {

        blk_unref(s->top);

    }

    block_job_unref(&s->common);

}

void FUNC_0(const char *VAR_0, BlockDriverState *VAR_1,

                  BlockDriverState *VAR_2, BlockDriverState *VAR_3, int64_t VAR_4,

                  BlockdevOnError VAR_5, const char *VAR_6,

                  Error **VAR_7)

{

    CommitBlockJob *s;

    BlockReopenQueue *reopen_queue = NULL;

    int VAR_8;

    int VAR_9;

    BlockDriverState *iter;

    BlockDriverState *overlay_bs;

    Error *local_err = NULL;

    int VAR_10;



    assert(VAR_3 != VAR_1);

    if (VAR_3 == VAR_2) {

        error_setg(VAR_7, "Invalid files for merge: VAR_3 and VAR_2 are the same");

        return;

    }



    overlay_bs = bdrv_find_overlay(VAR_1, VAR_3);



    if (overlay_bs == NULL) {

        error_setg(VAR_7, "Could not find overlay image for %s:", VAR_3->filename);

        return;

    }



    

    s = block_job_create(VAR_0, &commit_job_driver, VAR_1, 0, BLK_PERM_ALL,

                         VAR_4, BLOCK_JOB_DEFAULT, NULL, NULL, VAR_7);

    if (!s) {

        return;

    }



    VAR_9    = bdrv_get_flags(VAR_2);

    VAR_8 = bdrv_get_flags(overlay_bs);



    

    if (!(VAR_9 & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, VAR_2, NULL,

                                         VAR_9 | BDRV_O_RDWR);

    }

    if (!(VAR_8 & BDRV_O_RDWR)) {

        reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,

                                         VAR_8 | BDRV_O_RDWR);

    }

    if (reopen_queue) {

        bdrv_reopen_multiple(bdrv_get_aio_context(VAR_1), reopen_queue, &local_err);

        if (local_err != NULL) {

            error_propagate(VAR_7, local_err);

            goto fail;

        }

    }





    



    assert(bdrv_chain_contains(VAR_3, VAR_2));

    for (iter = VAR_3; iter != backing_bs(VAR_2); iter = backing_bs(iter)) {

        

        block_job_add_bdrv(&s->common, "intermediate node", iter, 0,

                           BLK_PERM_ALL, &error_abort);

    }

    





    if (VAR_1 != overlay_bs) {

        

        block_job_add_bdrv(&s->common, "overlay of VAR_3", overlay_bs, 0,

                           BLK_PERM_ALL, &error_abort);

    }



    

    s->VAR_2 = blk_new(0, BLK_PERM_ALL);

    VAR_10 = blk_insert_bs(s->VAR_2, VAR_2, VAR_7);

    if (VAR_10 < 0) {

        goto fail;

    }



    

    s->VAR_3 = blk_new(0, BLK_PERM_ALL);

    VAR_10 = blk_insert_bs(s->VAR_3, VAR_3, VAR_7);

    if (VAR_10 < 0) {

        goto fail;

    }



    s->active = VAR_1;



    s->base_flags          = VAR_9;

    s->VAR_8  = VAR_8;



    s->VAR_6 = g_strdup(VAR_6);



    s->VAR_5 = VAR_5;



    trace_commit_start(VAR_1, VAR_2, VAR_3, s);

    block_job_start(&s->common);

    return;



fail:

    if (s->VAR_2) {

        blk_unref(s->VAR_2);

    }

    if (s->VAR_3) {

        blk_unref(s->VAR_3);

    }

    block_job_unref(&s->common);

}

void FUNC_0(const char *VAR_0, BlockDriverState *VAR_1,
BlockDriverState *VAR_2, BlockDriverState *VAR_3, int64_t VAR_4,
BlockdevOnError VAR_5, const char *VAR_6,
Error **VAR_7)
{ CommitBlockJob *s; BlockReopenQueue *reopen_queue = NULL; int VAR_8; int VAR_9; BlockDriverState *iter; BlockDriverState *overlay_bs; Error *local_err = NULL; int VAR_10; assert(VAR_3 != VAR_1); if (VAR_3 == VAR_2) { error_setg(VAR_7, "Invalid files for merge: VAR_3 and VAR_2 are the same"); return; } overlay_bs = bdrv_find_overlay(VAR_1, VAR_3); if (overlay_bs == NULL) { error_setg(VAR_7, "Could not find overlay image for %s:", VAR_3->filename); return; } s = block_job_create(VAR_0, &commit_job_driver, VAR_1, 0, BLK_PERM_ALL,
VAR_4, BLOCK_JOB_DEFAULT, NULL, NULL, VAR_7); if (!s) { return; } VAR_9    = bdrv_get_flags(VAR_2); VAR_8 = bdrv_get_flags(overlay_bs); if (!(VAR_9 & BDRV_O_RDWR)) { reopen_queue = bdrv_reopen_queue(reopen_queue, VAR_2, NULL,
VAR_9 | BDRV_O_RDWR); } if (!(VAR_8 & BDRV_O_RDWR)) { reopen_queue = bdrv_reopen_queue(reopen_queue, overlay_bs, NULL,
VAR_8 | BDRV_O_RDWR); } if (reopen_queue) { bdrv_reopen_multiple(bdrv_get_aio_context(VAR_1), reopen_queue, &local_err); if (local_err != NULL) { error_propagate(VAR_7, local_err); goto fail; } } assert(bdrv_chain_contains(VAR_3, VAR_2)); for (iter = VAR_3; iter != backing_bs(VAR_2); iter = backing_bs(iter)) { block_job_add_bdrv(&s->common, "intermediate node", iter, 0,
BLK_PERM_ALL, &error_abort); } if (VAR_1 != overlay_bs) { block_job_add_bdrv(&s->common, "overlay of VAR_3", overlay_bs, 0,
BLK_PERM_ALL, &error_abort); } s->VAR_2 = blk_new(0, BLK_PERM_ALL); VAR_10 = blk_insert_bs(s->VAR_2, VAR_2, VAR_7); if (VAR_10 < 0) { goto fail; } s->VAR_3 = blk_new(0, BLK_PERM_ALL); VAR_10 = blk_insert_bs(s->VAR_3, VAR_3, VAR_7); if (VAR_10 < 0) { goto fail; } s->active = VAR_1; s->base_flags          = VAR_9; s->VAR_8  = VAR_8; s->VAR_6 = g_strdup(VAR_6); s->VAR_5 = VAR_5; trace_commit_start(VAR_1, VAR_2, VAR_3, s); block_job_start(&s->common); return; fail:
if (s->VAR_2) { blk_unref(s->VAR_2); } if (s->VAR_3) { blk_unref(s->VAR_3); } block_job_unref(&s->common); }