1. 26 4月, 2011 1 次提交
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      SELINUX: Make selinux cache VFS RCU walks safe · 0dc1ba24
      Eric Paris 提交于
      Now that the security modules can decide whether they support the
      dcache RCU walk or not it's possible to make selinux a bit more
      RCU friendly.  The SELinux AVC and security server access decision
      code is RCU safe.  A specific piece of the LSM audit code may not
      be RCU safe.
      
      This patch makes the VFS RCU walk retry if it would hit the non RCU
      safe chunk of code.  It will normally just work under RCU.  This is
      done simply by passing the VFS RCU state as a flag down into the
      avc_audit() code and returning ECHILD there if it would have an issue.
      Based-on-patch-by: NAndi Kleen <ak@linux.intel.com>
      Signed-off-by: NEric Paris <eparis@redhat.com>
      0dc1ba24
  2. 25 4月, 2011 3 次提交
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