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Commit 32db5107 authored by Amir Goldstein's avatar Amir Goldstein
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ovl: fix regression in showing lowerdir mount option



Before commit b36a5780 ("ovl: modify layer parameter parsing"),
spaces and commas in lowerdir mount option value used to be escaped using
seq_show_option().

In current upstream, when lowerdir value has a space, it is not escaped
in /proc/mounts, e.g.:

  none /mnt overlay rw,relatime,lowerdir=l l,upperdir=u,workdir=w 0 0

which results in broken output of the mount utility:

  none on /mnt type overlay (rw,relatime,lowerdir=l)

Store the original lowerdir mount options before unescaping and show
them using the same escaping used for seq_show_option() in addition to
escaping the colon separator character.

Fixes: b36a5780 ("ovl: modify layer parameter parsing")
Signed-off-by: default avatarAmir Goldstein <amir73il@gmail.com>
parent c34706ac
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