path: root/net
diff options
authorTrond Myklebust <trond.myklebust@primarydata.com>2014-02-06 14:38:53 -0500
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-02-10 08:44:12 -0500
commitfd1defc257e2b12ab69bc0b379105c00eca4e112 (patch)
treef0058b38b262aacd30da1ac5e4e85fb37451f559 /net
parentb28a960c42fcd9cfc987441fa6d1c1a471f0f9ed (diff)
NFS: Do not set NFS_INO_INVALID_LABEL unless server supports labeled NFS
Commit aa9c2669626c (NFS: Client implementation of Labeled-NFS) introduces a performance regression. When nfs_zap_caches_locked is called, it sets the NFS_INO_INVALID_LABEL flag irrespectively of whether or not the NFS server supports security labels. Since that flag is never cleared, it means that all calls to nfs_revalidate_inode() will now trigger an on-the-wire GETATTR call. This patch ensures that we never set the NFS_INO_INVALID_LABEL unless the server advertises support for labeled NFS. It also causes nfs_setsecurity() to clear NFS_INO_INVALID_LABEL when it has successfully set the security label for the inode. Finally it gets rid of the NFS_INO_INVALID_LABEL cruft from nfs_update_inode, which has nothing to do with labeled NFS. Reported-by: Neil Brown <neilb@suse.de> Cc: stable@vger.kernel.org # 3.11+ Tested-by: Neil Brown <neilb@suse.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions

Privacy Policy