diff options
| author |   Ross Zwisler <ross.zwisler@linux.intel.com> | 2018-06-06 10:45:14 -0600 |
|---|---|---|
| committer |   Dan Williams <dan.j.williams@intel.com> | 2018-06-06 11:02:34 -0700 |
| commit | 808c340be17dc77131fcdf9ad1eb34452d650da1 (patch) | |
| tree | 54cdace8155c87dbc75a9db2afd0a24768f41eea /drivers/dax | |
| parent | libnvdimm, pmem: Do not flush power-fail protected CPU caches (diff) | |
| download | linux-dev-808c340be17dc77131fcdf9ad1eb34452d650da1.tar.xz linux-dev-808c340be17dc77131fcdf9ad1eb34452d650da1.zip | |
dax: Use dax_write_cache* helpers
Use dax_write_cache() and dax_write_cache_enabled() instead of open coding
the bit operations.
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax')
| -rw-r--r-- | drivers/dax/super.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/dax/super.c b/drivers/dax/super.c index 2b2332b605e4..c2c46f96b18c 100644 --- a/drivers/dax/super.c +++ b/drivers/dax/super.c @@ -182,8 +182,7 @@ static ssize_t write_cache_show(struct device *dev, if (!dax_dev) return -ENXIO; - rc = sprintf(buf, "%d\n", !!test_bit(DAXDEV_WRITE_CACHE, - &dax_dev->flags)); + rc = sprintf(buf, "%d\n", !!dax_write_cache_enabled(dax_dev)); put_dax(dax_dev); return rc; } @@ -201,10 +200,8 @@ static ssize_t write_cache_store(struct device *dev, if (rc) len = rc; - else if (write_cache) - set_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags); else - clear_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags); + dax_write_cache(dax_dev, write_cache); put_dax(dax_dev); return len; @@ -286,7 +283,7 @@ EXPORT_SYMBOL_GPL(dax_copy_from_iter); void arch_wb_cache_pmem(void *addr, size_t size); void dax_flush(struct dax_device *dax_dev, void *addr, size_t size) { - if (unlikely(!test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags))) + if (unlikely(!dax_write_cache_enabled(dax_dev))) return; arch_wb_cache_pmem(addr, size); |