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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2008-12-26 15:08:55 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-29 13:43:00 +0100 |
| commit | ea319518ba3de282c13ae1cf4bf2215c5e03e67e (patch) | |
| tree | 72eea2b8e5d8926e95ade18d610d59b13df5dae5 /mm/backing-dev.c | |
| parent | 00ef9f7348dfd2fc223ec42aceb30836e86b367f (diff) | |
| download | lwn-ea319518ba3de282c13ae1cf4bf2215c5e03e67e.tar.gz lwn-ea319518ba3de282c13ae1cf4bf2215c5e03e67e.zip | |
locking, percpu counters: introduce separate lock classes
Impact: fix lockdep false positives
Classify percpu_counter instances similar to regular lock objects --
that is, per instantiation site.
The networking code has increased its use of percpu_counters, which
leads to false positives if they are treated as a single class.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/backing-dev.c')
| -rw-r--r-- | mm/backing-dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/backing-dev.c b/mm/backing-dev.c index f2e574dbc300..f3b125857827 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -220,7 +220,7 @@ int bdi_init(struct backing_dev_info *bdi) bdi->max_prop_frac = PROP_FRAC_BASE; for (i = 0; i < NR_BDI_STAT_ITEMS; i++) { - err = percpu_counter_init_irq(&bdi->bdi_stat[i], 0); + err = percpu_counter_init(&bdi->bdi_stat[i], 0); if (err) goto err; } |