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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-06-01 17:54:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-06-01 17:54:55 +0200 |
| commit | d0acb5202d0e33d23cbe6994424587fbb05a5360 (patch) | |
| tree | 4b7fd07149896994fb739e1cbb5d65f2e47cd6d7 /tools/testing/selftests/ublk/kublk.c | |
| parent | 55f3722fc694d6478eca3020b12a4d6a79b06f27 (diff) | |
| parent | bb532bfaf7919c7c98caab81864e9ce2646e11e3 (diff) | |
Merge v7.0.11linux-rolling-stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/ublk/kublk.c')
| -rw-r--r-- | tools/testing/selftests/ublk/kublk.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tools/testing/selftests/ublk/kublk.c b/tools/testing/selftests/ublk/kublk.c index e1c3b3c55e56..c40aa7952b6e 100644 --- a/tools/testing/selftests/ublk/kublk.c +++ b/tools/testing/selftests/ublk/kublk.c @@ -1395,6 +1395,17 @@ static int __cmd_dev_add(const struct dev_ctx *ctx) goto fail; } + /* + * The kernel may reduce nr_hw_queues (e.g. capped to nr_cpu_ids). + * Cap nthreads to the actual queue count to avoid creating extra + * handler threads that will hang during device removal. + * + * per_io_tasks mode is excluded: threads interleave across all + * queues so nthreads > nr_hw_queues is valid and intentional. + */ + if (!ctx->per_io_tasks && dev->nthreads > info->nr_hw_queues) + dev->nthreads = info->nr_hw_queues; + ret = ublk_start_daemon(ctx, dev); ublk_dbg(UBLK_DBG_DEV, "%s: daemon exit %d\n", __func__, ret); if (ret < 0) |