[Patchew-devel] [PATCH] do not go through each updated series many times
Philippe Mathieu-Daudé
philmd at redhat.com
Sat Jun 15 06:22:23 UTC 2019
On 6/13/19 2:28 PM, Paolo Bonzini wrote:
> When a series consists of many patches and they are (as it almost
> always happens) merged in a single batch, series_update has
> quadratic complexity. Fix that by using a set.
>
> Signed-off-by: Paolo Bonzini <pbonzini at redhat.com>
> ---
> api/models.py | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/api/models.py b/api/models.py
> index 81bc167..059eaeb 100644
> --- a/api/models.py
> +++ b/api/models.py
> @@ -306,7 +306,7 @@ class Project(models.Model):
> project_head = property(get_project_head, set_project_head)
>
> def series_update(self, message_ids):
> - updated_series = []
> + updated_series = set()
> for msgid in message_ids:
> if msgid.startswith("<") and msgid.endswith(">"):
> msgid = msgid[1:-1]
> @@ -319,7 +319,7 @@ class Project(models.Model):
> mo.save()
> s = mo.get_series_head()
> if s:
> - updated_series.append(s)
> + updated_series.add(s)
> for series in updated_series:
> for p in series.get_patches():
> if not p.is_merged:
>
Reviewed-by: Philippe Mathieu-Daudé <philmd at redhat.com>
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