[RFC PATCH 0/4] Introduce capable_noaudit

[cem@kernel.org]

From: Carlos Maiolino <cem@kernel.org>

In some cases - filesystems quota specifically here - we'd like to check
for effective capabilities without issuing spurious audit messages and
without the need to specify a namespace for that.

This series introduce capable_noaudit() which has the same goal as
capable() but without firing audit messages.

Also, this updates both generic quota and xfs quota code to use that.

The last patch unexports has_capability_noaudit() which was originally
exported to be used in xfs but turns out it does not meet our needs.

Note this is based on top of a current series I have to remove
has_capability_noaudit() calls from xfs so the xfs patch won't
apply cleanly without that series.

If adding this helper is acceptable, I'll turn this into a non-rfc
series with the required changes to apply properly.

Comments? Flames?
Cheers

Carlos Maiolino (4):
  capabily: Add new capable_noaudit
  quota: Don't issue audit messages on quota enforcing
  xfs: replace ns_capable_noaudit()
  capability: unexport has_capability_noaudit

 fs/quota/dquot.c           |  2 +-
 fs/xfs/xfs_trans_dquot.c   |  2 +-
 include/linux/capability.h |  5 +++++
 kernel/capability.c        | 18 +++++++++++++++++-
 4 files changed, 24 insertions(+), 3 deletions(-)

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2.54.0