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| author | Steven Rostedt <rostedt@goodmis.org> | 2024-08-14 16:56:42 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2024-08-14 16:59:28 -0400 |
| commit | ee057c8c194b9283f4137b253b70e292693a39f0 (patch) | |
| tree | 4ee9868bfc432e0b1230016cd316468719f0b477 /kernel/padata.c | |
| parent | b96c312551b241bc17226c5347c6d6b38a1efd3e (diff) | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
Merge tag 'v6.11-rc3' into trace/ring-buffer/core
The "reserve_mem" kernel command line parameter has been pulled into
v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to
be able to be mapped at the address specified by the "reserve_mem" command
line parameter.
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/padata.c')
| -rw-r--r-- | kernel/padata.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/padata.c b/kernel/padata.c index 53f4bc912712..0fa6c2895460 100644 --- a/kernel/padata.c +++ b/kernel/padata.c @@ -517,6 +517,13 @@ void __init padata_do_multithreaded(struct padata_mt_job *job) ps.chunk_size = max(ps.chunk_size, job->min_chunk); ps.chunk_size = roundup(ps.chunk_size, job->align); + /* + * chunk_size can be 0 if the caller sets min_chunk to 0. So force it + * to at least 1 to prevent divide-by-0 panic in padata_mt_helper().` + */ + if (!ps.chunk_size) + ps.chunk_size = 1U; + list_for_each_entry(pw, &works, pw_list) if (job->numa_aware) { int old_node = atomic_read(&last_used_nid); |