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[Qemu-block] [PATCH v5 29/42] nbd: Use CAF when looking for dirty bitmap
From: |
Max Reitz |
Subject: |
[Qemu-block] [PATCH v5 29/42] nbd: Use CAF when looking for dirty bitmap |
Date: |
Thu, 13 Jun 2019 00:09:51 +0200 |
When looking for a dirty bitmap to share, we should handle filters by
just including them in the search (so they do not break backing chains).
Signed-off-by: Max Reitz <address@hidden>
---
nbd/server.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/nbd/server.c b/nbd/server.c
index aeca3893fe..0d51d46b81 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -1508,13 +1508,13 @@ NBDExport *nbd_export_new(BlockDriverState *bs,
uint64_t dev_offset,
if (bitmap) {
BdrvDirtyBitmap *bm = NULL;
- while (true) {
+ while (bs) {
bm = bdrv_find_dirty_bitmap(bs, bitmap);
- if (bm != NULL || bs->backing == NULL) {
+ if (bm != NULL) {
break;
}
- bs = bs->backing->bs;
+ bs = bdrv_filtered_bs(bs);
}
if (bm == NULL) {
--
2.21.0
- Re: [Qemu-block] [PATCH v5 25/42] mirror: Deal with filters, (continued)
[Qemu-block] [PATCH v5 22/42] block: Use CAFs in bdrv_get_allocated_file_size(), Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 26/42] backup: Deal with filters, Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 27/42] commit: Deal with filters, Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 29/42] nbd: Use CAF when looking for dirty bitmap,
Max Reitz <=
[Qemu-block] [PATCH v5 28/42] stream: Deal with filters, Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 31/42] block: Drop backing_bs(), Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 32/42] block: Make bdrv_get_cumulative_perm() public, Max Reitz, 2019/06/12
[Qemu-block] [PATCH v5 33/42] blockdev: Fix active commit choice, Max Reitz, 2019/06/12