Re: [PATCH BUGFIX] block: add missing group association in bio_split

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Il 09/05/2016 16:35, Jeff Moyer ha scritto:
Jeff Moyer <jmoyer@xxxxxxxxxx> writes:

Paolo Valente <paolo.valente@xxxxxxxxxx> writes:

@@ -1811,6 +1811,11 @@ struct bio *bio_split(struct bio *bio, int sectors,

  	bio_advance(bio, split->bi_iter.bi_size);

+#ifdef CONFIG_BLK_CGROUP
+	if (bio->bi_css)
+		bio_associate_blkcg(split, bio->bi_css);
+#endif
+
  	return split;
  }
  EXPORT_SYMBOL(bio_split);

Get rid of the #ifdefery.  This should be just:

bio_associate_blkcg(split, bio->bi_css);

Gah, I see that the bi_css member is only present for CONFIG_BLK_CGROUP.
I guess we'll have to live with the ifdef.


We have already tried to remove it, but it seems it would require other major changes.

Thanks,
Paolo

-Jeff


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