From mboxrd@z Thu Jan 1 00:00:00 1970 From: jonathan.derrick@intel.com (Jon Derrick) Date: Thu, 12 May 2016 11:43:05 -0600 Subject: [RFC 1/2] block: allow other bd i_node flags when DAX is disabled In-Reply-To: <1463074986-3070-1-git-send-email-jonathan.derrick@intel.com> References: <1463074986-3070-1-git-send-email-jonathan.derrick@intel.com> Message-ID: <1463074986-3070-2-git-send-email-jonathan.derrick@intel.com> 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 --- 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