Hello, after the tristate dax option change some applications fail to detect pmem devices because the dax option no longer shows in mtab when device is mounted with -o dax. At first it might seem stupid to detect pmem by looking at the mount options. However, if the application actually wants a mount point properly configured for dax rather than just backed by pmem I do not see any other easy way. Also this happens during early installtion steps when the mounted filesystem is typically empty and you want to perform non-destructive detection. If there are better ways to detect dax enabled mount poins I want to hear all about it. In the meantime we have legacy applications to support. It also makes sense that when you mount a device with -o dax it actually shows dax in the mount options. Not doind so is confusing for humans as well. Thanks Michal Michal Suchanek (2): xfs: show the dax option in mount options. ext4: show the dax option in mount options References: bsc#1178366 fs/ext4/super.c | 2 +- fs/xfs/xfs_super.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) -- 2.26.2
