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| author | Max Reitz | 2021-06-24 10:38:24 +0200 |
|---|---|---|
| committer | Kevin Wolf | 2021-07-20 16:49:31 +0200 |
| commit | 8573823f3ba2b63926f82d5732473e0cd73c1213 (patch) | |
| tree | 168930d75dbb0d0044e47a2be1eb915e20b1fb00 /block/export | |
| parent | block/vvfat: fix: drop backing (diff) | |
| download | qemu-8573823f3ba2b63926f82d5732473e0cd73c1213.tar.gz qemu-8573823f3ba2b63926f82d5732473e0cd73c1213.tar.xz qemu-8573823f3ba2b63926f82d5732473e0cd73c1213.zip | |
block/export: Conditionally ignore set-context error
When invoking block-export-add with some iothread and
fixed-iothread=false, and changing the node's iothread fails, the error
is supposed to be ignored.
However, it is still stored in *errp, which is wrong. If a second error
occurs, the "*errp must be NULL" assertion in error_setv() fails:
qemu-system-x86_64: ../util/error.c:59: error_setv: Assertion
`*errp == NULL' failed.
So if fixed-iothread=false, we should ignore the error by passing NULL
to bdrv_try_set_aio_context().
Fixes: f51d23c80af73c95e0ce703ad06a300f1b3d63ef
("block/export: add iothread and fixed-iothread options")
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210624083825.29224-2-mreitz@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/export')
| -rw-r--r-- | block/export/export.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/block/export/export.c b/block/export/export.c index fec7d9f738..6d3b9964c8 100644 --- a/block/export/export.c +++ b/block/export/export.c @@ -111,6 +111,7 @@ BlockExport *blk_exp_add(BlockExportOptions *export, Error **errp) if (export->has_iothread) { IOThread *iothread; AioContext *new_ctx; + Error **set_context_errp; iothread = iothread_by_id(export->iothread); if (!iothread) { @@ -120,7 +121,9 @@ BlockExport *blk_exp_add(BlockExportOptions *export, Error **errp) new_ctx = iothread_get_aio_context(iothread); - ret = bdrv_try_set_aio_context(bs, new_ctx, errp); + /* Ignore errors with fixed-iothread=false */ + set_context_errp = fixed_iothread ? errp : NULL; + ret = bdrv_try_set_aio_context(bs, new_ctx, set_context_errp); if (ret == 0) { aio_context_release(ctx); aio_context_acquire(new_ctx); |