[PATCH v2 0/3] fs_parser: handle parameters that can be empty and don't have a value

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While investigating an ext4/053 fstest failure, I realised that there was
an issue when the flag 'fs_param_can_be_empty' is set in a parameter and it
doesn't have a value

After an initial attempt to fix the issue, Christian suggested a different
approach and the following patches are based in his suggestion.

Another change that I'm introducing in this v2 is the change of parameter
'test_dummy_encryption' to also use the new helper introduced by the first
patch in this series.

Finally, I'd like to ask someone to look closer at the overlayfs patch as
I don't think there were any fstests to validate the case where 'lowerdir'
is empty.

Luis Henriques (3):
  fs_parser: add helper to define parameters with string and flag types
  ext4: fix the parsing of empty string mount parameters
  ovl: fix the parsing of empty string mount parameters

 fs/ext4/super.c           | 25 ++++++++++---------------
 fs/overlayfs/params.c     | 13 +++++--------
 include/linux/fs_parser.h |  8 ++++++++
 3 files changed, 23 insertions(+), 23 deletions(-)

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