X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=blockdev.c;h=dcf8c8d2ab95d45aa9efdab63a09308648612adb;hb=dcf7ea4a78b10575dcc032e0356233ab3a95e7d2;hp=266ecc06cca08a82c5a2ea3825df7200ec82019d;hpb=ab41fc4853cc0cf01ed4903ffe7c36e3768b538f;p=mirror_qemu.git

diff --git a/blockdev.c b/blockdev.c
index 266ecc06cc..dcf8c8d2ab 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -35,6 +35,7 @@
 #include "sysemu/blockdev.h"
 #include "hw/block/block.h"
 #include "block/blockjob.h"
+#include "block/qdict.h"
 #include "block/throttle-groups.h"
 #include "monitor/monitor.h"
 #include "qemu/error-report.h"
@@ -1968,7 +1969,7 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
     assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
     backup = common->action->u.blockdev_backup.data;
 
-    bs = qmp_get_root_bs(backup->device, errp);
+    bs = bdrv_lookup_bs(backup->device, backup->device, errp);
     if (!bs) {
         return;
     }
@@ -2052,6 +2053,7 @@ typedef struct BlockDirtyBitmapState {
     BlockDriverState *bs;
     HBitmap *backup;
     bool prepared;
+    bool was_enabled;
 } BlockDirtyBitmapState;
 
 static void block_dirty_bitmap_add_prepare(BlkActionState *common,
@@ -2072,6 +2074,7 @@ static void block_dirty_bitmap_add_prepare(BlkActionState *common,
                                action->has_granularity, action->granularity,
                                action->has_persistent, action->persistent,
                                action->has_autoload, action->autoload,
+                               action->has_x_disabled, action->x_disabled,
                                &local_err);
 
     if (!local_err) {
@@ -2151,6 +2154,74 @@ static void block_dirty_bitmap_clear_commit(BlkActionState *common)
     hbitmap_free(state->backup);
 }
 
+static void block_dirty_bitmap_enable_prepare(BlkActionState *common,
+                                              Error **errp)
+{
+    BlockDirtyBitmap *action;
+    BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
+                                             common, common);
+
+    if (action_check_completion_mode(common, errp) < 0) {
+        return;
+    }
+
+    action = common->action->u.x_block_dirty_bitmap_enable.data;
+    state->bitmap = block_dirty_bitmap_lookup(action->node,
+                                              action->name,
+                                              NULL,
+                                              errp);
+    if (!state->bitmap) {
+        return;
+    }
+
+    state->was_enabled = bdrv_dirty_bitmap_enabled(state->bitmap);
+    bdrv_enable_dirty_bitmap(state->bitmap);
+}
+
+static void block_dirty_bitmap_enable_abort(BlkActionState *common)
+{
+    BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
+                                             common, common);
+
+    if (!state->was_enabled) {
+        bdrv_disable_dirty_bitmap(state->bitmap);
+    }
+}
+
+static void block_dirty_bitmap_disable_prepare(BlkActionState *common,
+                                               Error **errp)
+{
+    BlockDirtyBitmap *action;
+    BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
+                                             common, common);
+
+    if (action_check_completion_mode(common, errp) < 0) {
+        return;
+    }
+
+    action = common->action->u.x_block_dirty_bitmap_disable.data;
+    state->bitmap = block_dirty_bitmap_lookup(action->node,
+                                              action->name,
+                                              NULL,
+                                              errp);
+    if (!state->bitmap) {
+        return;
+    }
+
+    state->was_enabled = bdrv_dirty_bitmap_enabled(state->bitmap);
+    bdrv_disable_dirty_bitmap(state->bitmap);
+}
+
+static void block_dirty_bitmap_disable_abort(BlkActionState *common)
+{
+    BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
+                                             common, common);
+
+    if (state->was_enabled) {
+        bdrv_enable_dirty_bitmap(state->bitmap);
+    }
+}
+
 static void abort_prepare(BlkActionState *common, Error **errp)
 {
     error_setg(errp, "Transaction aborted using Abort action");
@@ -2211,7 +2282,17 @@ static const BlkActionOps actions[] = {
         .prepare = block_dirty_bitmap_clear_prepare,
         .commit = block_dirty_bitmap_clear_commit,
         .abort = block_dirty_bitmap_clear_abort,
-    }
+    },
+    [TRANSACTION_ACTION_KIND_X_BLOCK_DIRTY_BITMAP_ENABLE] = {
+        .instance_size = sizeof(BlockDirtyBitmapState),
+        .prepare = block_dirty_bitmap_enable_prepare,
+        .abort = block_dirty_bitmap_enable_abort,
+    },
+    [TRANSACTION_ACTION_KIND_X_BLOCK_DIRTY_BITMAP_DISABLE] = {
+        .instance_size = sizeof(BlockDirtyBitmapState),
+        .prepare = block_dirty_bitmap_disable_prepare,
+        .abort = block_dirty_bitmap_disable_abort,
+     }
 };
 
 /**
@@ -2801,6 +2882,7 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
                                 bool has_granularity, uint32_t granularity,
                                 bool has_persistent, bool persistent,
                                 bool has_autoload, bool autoload,
+                                bool has_disabled, bool disabled,
                                 Error **errp)
 {
     BlockDriverState *bs;
@@ -2835,6 +2917,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
         warn_report("Autoload option is deprecated and its value is ignored");
     }
 
+    if (!has_disabled) {
+        disabled = false;
+    }
+
     if (persistent &&
         !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
     {
@@ -2846,6 +2932,10 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
         return;
     }
 
+    if (disabled) {
+        bdrv_disable_dirty_bitmap(bitmap);
+    }
+
     bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
 }
 
@@ -2922,6 +3012,78 @@ void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
     bdrv_clear_dirty_bitmap(bitmap, NULL);
 }
 
+void qmp_x_block_dirty_bitmap_enable(const char *node, const char *name,
+                                   Error **errp)
+{
+    BlockDriverState *bs;
+    BdrvDirtyBitmap *bitmap;
+
+    bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+    if (!bitmap) {
+        return;
+    }
+
+    if (bdrv_dirty_bitmap_frozen(bitmap)) {
+        error_setg(errp,
+                   "Bitmap '%s' is currently frozen and cannot be enabled",
+                   name);
+        return;
+    }
+
+    bdrv_enable_dirty_bitmap(bitmap);
+}
+
+void qmp_x_block_dirty_bitmap_disable(const char *node, const char *name,
+                                    Error **errp)
+{
+    BlockDriverState *bs;
+    BdrvDirtyBitmap *bitmap;
+
+    bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+    if (!bitmap) {
+        return;
+    }
+
+    if (bdrv_dirty_bitmap_frozen(bitmap)) {
+        error_setg(errp,
+                   "Bitmap '%s' is currently frozen and cannot be disabled",
+                   name);
+        return;
+    }
+
+    bdrv_disable_dirty_bitmap(bitmap);
+}
+
+void qmp_x_block_dirty_bitmap_merge(const char *node, const char *dst_name,
+                                    const char *src_name, Error **errp)
+{
+    BlockDriverState *bs;
+    BdrvDirtyBitmap *dst, *src;
+
+    dst = block_dirty_bitmap_lookup(node, dst_name, &bs, errp);
+    if (!dst) {
+        return;
+    }
+
+    if (bdrv_dirty_bitmap_frozen(dst)) {
+        error_setg(errp, "Bitmap '%s' is frozen and cannot be modified",
+                   dst_name);
+        return;
+    } else if (bdrv_dirty_bitmap_readonly(dst)) {
+        error_setg(errp, "Bitmap '%s' is readonly and cannot be modified",
+                   dst_name);
+        return;
+    }
+
+    src = bdrv_find_dirty_bitmap(bs, src_name);
+    if (!src) {
+        error_setg(errp, "Dirty bitmap '%s' not found", src_name);
+        return;
+    }
+
+    bdrv_merge_dirty_bitmap(dst, src, errp);
+}
+
 BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitmap_sha256(const char *node,
                                                               const char *name,
                                                               Error **errp)
@@ -3465,7 +3627,7 @@ BlockJob *do_blockdev_backup(BlockdevBackup *backup, JobTxn *txn,
         backup->compress = false;
     }
 
-    bs = qmp_get_root_bs(backup->device, errp);
+    bs = bdrv_lookup_bs(backup->device, backup->device, errp);
     if (!bs) {
         return NULL;
     }
@@ -3534,6 +3696,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
                                    bool has_unmap, bool unmap,
                                    bool has_filter_node_name,
                                    const char *filter_node_name,
+                                   bool has_copy_mode, MirrorCopyMode copy_mode,
                                    Error **errp)
 {
 
@@ -3558,6 +3721,9 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
     if (!has_filter_node_name) {
         filter_node_name = NULL;
     }
+    if (!has_copy_mode) {
+        copy_mode = MIRROR_COPY_MODE_BACKGROUND;
+    }
 
     if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "granularity",
@@ -3588,7 +3754,7 @@ static void blockdev_mirror_common(const char *job_id, BlockDriverState *bs,
                  has_replaces ? replaces : NULL,
                  speed, granularity, buf_size, sync, backing_mode,
                  on_source_error, on_target_error, unmap, filter_node_name,
-                 errp);
+                 copy_mode, errp);
 }
 
 void qmp_drive_mirror(DriveMirror *arg, Error **errp)
@@ -3734,6 +3900,7 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
                            arg->has_on_target_error, arg->on_target_error,
                            arg->has_unmap, arg->unmap,
                            false, NULL,
+                           arg->has_copy_mode, arg->copy_mode,
                            &local_err);
     bdrv_unref(target_bs);
     error_propagate(errp, local_err);
@@ -3754,6 +3921,7 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
                          BlockdevOnError on_target_error,
                          bool has_filter_node_name,
                          const char *filter_node_name,
+                         bool has_copy_mode, MirrorCopyMode copy_mode,
                          Error **errp)
 {
     BlockDriverState *bs;
@@ -3786,6 +3954,7 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
                            has_on_target_error, on_target_error,
                            true, true,
                            has_filter_node_name, filter_node_name,
+                           has_copy_mode, copy_mode,
                            &local_err);
     error_propagate(errp, local_err);