From: Max Reitz <mreitz@redhat.com>
To: qemu-block@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>,
Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-devel@nongnu.org, Max Reitz <mreitz@redhat.com>
Subject: [PATCH v8 22/43] block: Use CAFs for debug breakpoints
Date: Tue, 1 Sep 2020 16:34:03 +0200 [thread overview]
Message-ID: <20200901143424.884735-23-mreitz@redhat.com> (raw)
In-Reply-To: <20200901143424.884735-1-mreitz@redhat.com>
When looking for a blkdebug node (which implements debug breakpoints),
use bdrv_primary_bs() to iterate through the graph, because that is
where a blkdebug node would be.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
---
block.c | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)
diff --git a/block.c b/block.c
index ed29d1edb4..ac4ab07f07 100644
--- a/block.c
+++ b/block.c
@@ -5568,17 +5568,7 @@ void bdrv_debug_event(BlockDriverState *bs, BlkdebugEvent event)
static BlockDriverState *bdrv_find_debug_node(BlockDriverState *bs)
{
while (bs && bs->drv && !bs->drv->bdrv_debug_breakpoint) {
- if (bs->file) {
- bs = bs->file->bs;
- continue;
- }
-
- if (bs->drv->is_filter && bs->backing) {
- bs = bs->backing->bs;
- continue;
- }
-
- break;
+ bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_breakpoint) {
@@ -5613,7 +5603,7 @@ int bdrv_debug_remove_breakpoint(BlockDriverState *bs, const char *tag)
int bdrv_debug_resume(BlockDriverState *bs, const char *tag)
{
while (bs && (!bs->drv || !bs->drv->bdrv_debug_resume)) {
- bs = bs->file ? bs->file->bs : NULL;
+ bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_resume) {
@@ -5626,7 +5616,7 @@ int bdrv_debug_resume(BlockDriverState *bs, const char *tag)
bool bdrv_debug_is_suspended(BlockDriverState *bs, const char *tag)
{
while (bs && bs->drv && !bs->drv->bdrv_debug_is_suspended) {
- bs = bs->file ? bs->file->bs : NULL;
+ bs = bdrv_primary_bs(bs);
}
if (bs && bs->drv && bs->drv->bdrv_debug_is_suspended) {
--
2.26.2
next prev parent reply other threads:[~2020-09-01 15:00 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 14:33 [PATCH v8 00/43] block: Deal with filters Max Reitz
2020-09-01 14:33 ` [PATCH v8 01/43] block: Add child access functions Max Reitz
2020-09-01 14:33 ` [PATCH v8 02/43] block: Add chain helper functions Max Reitz
2020-09-01 14:33 ` [PATCH v8 03/43] block: bdrv_cow_child() for bdrv_has_zero_init() Max Reitz
2020-09-01 14:33 ` [PATCH v8 04/43] block: bdrv_set_backing_hd() is about bs->backing Max Reitz
2020-09-01 14:33 ` [PATCH v8 05/43] block: Include filters when freezing backing chain Max Reitz
2020-09-01 14:33 ` [PATCH v8 06/43] block: Drop bdrv_is_encrypted() Max Reitz
2020-09-01 14:33 ` [PATCH v8 07/43] block: Add bdrv_supports_compressed_writes() Max Reitz
2020-09-01 14:33 ` [PATCH v8 08/43] throttle: Support compressed writes Max Reitz
2020-09-01 14:33 ` [PATCH v8 09/43] copy-on-read: " Max Reitz
2020-09-01 14:33 ` [PATCH v8 10/43] block: Use bdrv_filter_(bs|child) where obvious Max Reitz
2020-09-01 14:33 ` [PATCH v8 11/43] block: Use CAFs in block status functions Max Reitz
2020-09-01 14:33 ` [PATCH v8 12/43] stream: Deal with filters Max Reitz
2020-09-01 14:33 ` [PATCH v8 13/43] block: Use CAFs when working with backing chains Max Reitz
2020-09-01 14:33 ` [PATCH v8 14/43] block: Use bdrv_cow_child() in bdrv_co_truncate() Max Reitz
2020-09-01 14:33 ` [PATCH v8 15/43] block: Re-evaluate backing file handling in reopen Max Reitz
2020-09-01 14:33 ` [PATCH v8 16/43] block: Flush all children in generic code Max Reitz
2020-09-01 14:33 ` [PATCH v8 17/43] vmdk: Drop vmdk_co_flush() Max Reitz
2020-09-01 14:33 ` [PATCH v8 18/43] block: Iterate over children in refresh_limits Max Reitz
2020-09-01 14:34 ` [PATCH v8 19/43] block: Use CAFs in bdrv_refresh_filename() Max Reitz
2020-09-01 14:34 ` [PATCH v8 20/43] block: Use CAF in bdrv_co_rw_vmstate() Max Reitz
2020-09-01 14:34 ` [PATCH v8 21/43] block/snapshot: Fix fallback Max Reitz
2020-09-01 14:34 ` Max Reitz [this message]
2020-09-01 14:34 ` [PATCH v8 23/43] block: Improve get_allocated_file_size's default Max Reitz
2020-09-01 14:34 ` [PATCH v8 24/43] block/null: Implement bdrv_get_allocated_file_size Max Reitz
2020-09-01 14:34 ` [PATCH v8 25/43] blockdev: Use CAF in external_snapshot_prepare() Max Reitz
2020-09-01 14:34 ` [PATCH v8 26/43] block: Report data child for query-blockstats Max Reitz
2020-09-01 14:34 ` [PATCH v8 27/43] block: Use child access functions for QAPI queries Max Reitz
2020-09-01 14:34 ` [PATCH v8 28/43] block-copy: Use CAF to find sync=top base Max Reitz
2020-09-01 14:34 ` [PATCH v8 29/43] mirror: Deal with filters Max Reitz
2020-09-02 8:53 ` Kevin Wolf
2020-09-02 10:19 ` Max Reitz
2020-09-01 14:34 ` [PATCH v8 30/43] backup: " Max Reitz
2020-09-01 14:34 ` [PATCH v8 31/43] commit: " Max Reitz
2020-09-01 14:34 ` [PATCH v8 32/43] nbd: Use CAF when looking for dirty bitmap Max Reitz
2020-09-01 14:34 ` [PATCH v8 33/43] qemu-img: Use child access functions Max Reitz
2020-09-01 14:34 ` [PATCH v8 34/43] block: Drop backing_bs() Max Reitz
2020-09-01 14:34 ` [PATCH v8 35/43] blockdev: Fix active commit choice Max Reitz
2020-09-02 9:10 ` Kevin Wolf
2020-09-01 14:34 ` [PATCH v8 36/43] block: Inline bdrv_co_block_status_from_*() Max Reitz
2020-09-01 14:34 ` [PATCH v8 37/43] block: Leave BDS.backing_{file,format} constant Max Reitz
2020-09-01 14:34 ` [PATCH v8 38/43] iotests: Test that qcow2's data-file is flushed Max Reitz
2020-09-01 14:34 ` [PATCH v8 39/43] iotests: Let complete_and_wait() work with commit Max Reitz
2020-09-01 14:34 ` [PATCH v8 40/43] iotests: Add filter commit test cases Max Reitz
2020-09-01 14:34 ` [PATCH v8 41/43] iotests: Add filter mirror " Max Reitz
2020-09-01 14:34 ` [PATCH v8 42/43] iotests: Add test for commit in sub directory Max Reitz
2020-09-01 14:34 ` [PATCH v8 43/43] iotests: Test committing to overridden backing Max Reitz
2020-09-02 10:23 ` [PATCH v8 00/43] block: Deal with filters Kevin Wolf
2020-09-02 12:26 ` Max Reitz
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