dax: Use dax_write_cache* helpers (808c340b) · Commits · 戴 / test

drivers/dax/super.c

+3 −6

Original line number	Diff line number	Diff line
		@@ -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);