From: Fiona Ebner <f.ebner@proxmox.com>
To: qemu-devel@nongnu.org
Cc: qemu-block@nongnu.org, fam@euphon.net, stefanha@redhat.com,
hreitz@redhat.com, kwolf@redhat.com
Subject: [PATCH v2 1/5] include/block/block_int-common: document when resize callback is used
Date: Wed, 17 Sep 2025 13:54:48 +0200 [thread overview]
Message-ID: <20250917115509.401015-2-f.ebner@proxmox.com> (raw)
In-Reply-To: <20250917115509.401015-1-f.ebner@proxmox.com>
The 'resize' callback is only called by bdrv_parent_cb_resize() which
is only called by bdrv_co_write_req_finish() to notify the parent(s)
that the child was resized.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
---
include/block/block_int-common.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/block/block_int-common.h b/include/block/block_int-common.h
index 034c0634c8..8a3d427356 100644
--- a/include/block/block_int-common.h
+++ b/include/block/block_int-common.h
@@ -1020,6 +1020,9 @@ struct BdrvChildClass {
* the I/O API.
*/
+ /*
+ * Notifies the parent that the child was resized.
+ */
void (*resize)(BdrvChild *child);
/*
--
2.47.2
next prev parent reply other threads:[~2025-09-17 11:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-17 11:54 [PATCH v2 0/5] block: refresh filter parents when child was resized Fiona Ebner
2025-09-17 11:54 ` Fiona Ebner [this message]
2025-09-17 11:54 ` [PATCH v2 2/5] block: make bdrv_co_parent_cb_resize() a proper IO API function Fiona Ebner
2025-09-17 11:54 ` [PATCH v2 3/5] block: implement 'resize' callback for child_of_bds class Fiona Ebner
2025-09-17 11:54 ` [PATCH v2 4/5] iotests: add test for resizing a node below filters Fiona Ebner
2025-09-17 11:54 ` [PATCH v2 5/5] iotests: add test for resizing a 'file' node below a 'raw' node Fiona Ebner
2025-10-21 11:31 ` [PATCH v2 0/5] block: refresh filter parents when child was resized Fiona Ebner
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