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| author | Dan Williams <dan.j.williams@intel.com> | 2016-12-16 05:04:31 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-12-16 05:04:31 +0100 |
| commit | 9cf8bd529c6ba81402ebf6b7a56307b0787e4f93 (patch) | |
| tree | f53a27f54dbdec467905608fa1585a3e5b7b6e67 | |
| parent | libnvdimm, pfn: fix align attribute (diff) | |
| download | linux-9cf8bd529c6ba81402ebf6b7a56307b0787e4f93.tar.xz linux-9cf8bd529c6ba81402ebf6b7a56307b0787e4f93.zip | |
libnvdimm: replace mutex_is_locked() warnings with lockdep_assert_held
For warnings that should only ever trigger during development and
testing replace WARN statements with lockdep_assert_held. The lockdep
pattern is prevalent, and these paths are are well covered by libnvdimm
unit tests.
Reported-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | drivers/nvdimm/claim.c | 10 | ||||
| -rw-r--r-- | drivers/nvdimm/namespace_devs.c | 2 | ||||
| -rw-r--r-- | drivers/nvdimm/region_devs.c | 2 |
3 files changed, 6 insertions, 8 deletions
diff --git a/drivers/nvdimm/claim.c b/drivers/nvdimm/claim.c index 3376da1fb263..97d1772774a8 100644 --- a/drivers/nvdimm/claim.c +++ b/drivers/nvdimm/claim.c @@ -22,9 +22,8 @@ void __nd_detach_ndns(struct device *dev, struct nd_namespace_common **_ndns) { struct nd_namespace_common *ndns = *_ndns; - dev_WARN_ONCE(dev, !mutex_is_locked(&ndns->dev.mutex) - || ndns->claim != dev, - "%s: invalid claim\n", __func__); + lockdep_assert_held(&ndns->dev.mutex); + dev_WARN_ONCE(dev, ndns->claim != dev, "%s: invalid claim\n", __func__); ndns->claim = NULL; *_ndns = NULL; put_device(&ndns->dev); @@ -49,9 +48,8 @@ bool __nd_attach_ndns(struct device *dev, struct nd_namespace_common *attach, { if (attach->claim) return false; - dev_WARN_ONCE(dev, !mutex_is_locked(&attach->dev.mutex) - || *_ndns, - "%s: invalid claim\n", __func__); + lockdep_assert_held(&attach->dev.mutex); + dev_WARN_ONCE(dev, *_ndns, "%s: invalid claim\n", __func__); attach->claim = dev; *_ndns = attach; get_device(&attach->dev); diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 8817f8a0cf38..de5809a88512 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -1653,7 +1653,7 @@ static int select_pmem_id(struct nd_region *nd_region, u8 *pmem_id) u64 hw_start, hw_end, pmem_start, pmem_end; struct nd_label_ent *label_ent; - WARN_ON(!mutex_is_locked(&nd_mapping->lock)); + lockdep_assert_held(&nd_mapping->lock); list_for_each_entry(label_ent, &nd_mapping->labels, list) { nd_label = label_ent->label; if (!nd_label) diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c index 6af5e629140c..7cd705f3247c 100644 --- a/drivers/nvdimm/region_devs.c +++ b/drivers/nvdimm/region_devs.c @@ -509,7 +509,7 @@ void nd_mapping_free_labels(struct nd_mapping *nd_mapping) { struct nd_label_ent *label_ent, *e; - WARN_ON(!mutex_is_locked(&nd_mapping->lock)); + lockdep_assert_held(&nd_mapping->lock); list_for_each_entry_safe(label_ent, e, &nd_mapping->labels, list) { list_del(&label_ent->list); kfree(label_ent); |