[git pull] RCU-safe common_lsm_audit()

[Al Viro]

	Making common_lsm_audit() non-blocking; we don't really need to grab/drop
dentry in there - rcu_read_lock() is enough.  There's a couple of followups
using that to simplify the logics in selinux, but those hadn't soaked in -next
yet, so they'll have to go in next window.

The following changes since commit d36a1dd9f77ae1e72da48f4123ed35627848507d:

  dump_common_audit_data(): fix racy accesses to ->d_name (2021-01-16 15:11:35 -0500)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git work.audit

for you to fetch changes up to 23d8f5b684fc30126b7708cad38b753eaa078b3e:

  make dump_common_audit_data() safe to be called from RCU pathwalk (2021-01-16 15:12:08 -0500)

----------------------------------------------------------------
Al Viro (2):
      new helper: d_find_alias_rcu()
      make dump_common_audit_data() safe to be called from RCU pathwalk

 fs/dcache.c            | 25 +++++++++++++++++++++++++
 include/linux/dcache.h |  2 ++
 security/lsm_audit.c   |  5 +++--
 3 files changed, 30 insertions(+), 2 deletions(-)