[RFC 1/2] block: allow other bd i_node flags when DAX is disabled
Jon Derrick
jonathan.derrick at intel.com
Thu May 12 10:43:05 PDT 2016
When DAX is not compiled into the kernel or the device does not support
direct-access, the block device file's inode flags are fully cleared.
This patch changes it to only clear the S_DAX flag when DAX is disabled.
This reverts to i_flags behavior prior to
bbab37ddc20bae4709bca8745c128c4f46fe63c5
Signed-off-by: Jon Derrick <jonathan.derrick at intel.com>
---
fs/block_dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 20a2c02..d4fa725 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -1208,7 +1208,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
if (IS_ENABLED(CONFIG_BLK_DEV_DAX) && disk->fops->direct_access)
bdev->bd_inode->i_flags = S_DAX;
else
- bdev->bd_inode->i_flags = 0;
+ bdev->bd_inode->i_flags &= ~S_DAX;
if (!partno) {
ret = -ENXIO;
--
1.8.3.1
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