On Thu, Apr 19, 2018 at 11:47:21AM +0800, Yecheng Fu wrote: > `libmount` from util-linux and many softwares in userspace (e.g. > kubelet) did not expect empty string as mount source: > > ``` > $ mount -t tmpfs "" /mnt/tmpfs > $ findmnt /mnt/tmpfs > findmnt: /proc/self/mountinfo: parse error at line 51 > $ cat /proc/self/mountinfo | grep -P '\/mnt\/tmpfs' > 74 25 0:59 / /mnt/tmpfs rw,relatime shared:38 - tmpfs rw > $ cat /proc/self/mounts | grep -P '\/mnt\/tmpfs' > /mnt/tmpfs tmpfs rw,relatime 0 0 > ``` > > `source` field in mounts/mountinfo is empty, which breaks a lot of > mounts/mountinfo parsers. > > This fixes issues in parsing when user uses empty string as mount > source. > > Cc: Karel Zak <kzak@xxxxxxxxxx> > Signed-off-by: Yecheng Fu <cofyc.jackson@xxxxxxxxx> Reviewed-by: Matthew Wilcox <mawilcox@xxxxxxxxxxxxx>
