Bruce, Jeff, These patches fix issues I found when running nfstest_posix over NFS exported overlayfs. The issues stem from the fact that the overlay inode i_mtime is often out of date w.r.t stat->mtime. I am posting these separately from (soon to be posted) overlayfs NFS export support patches to get your ACK, or, since those changes are independent from overlayfs, you could carry them through your tree. Please note that this does not eliminate all direct access of nfsd to inode->i_mtime, but only the low hanging access sites, which also happen to be the cases that matter to overlayfs. Changes since v1 (RFC): - Use stat->mtime times instead of inode->i_mtime where relevant, so overlayfs doesn't need to be special cased Thanks, Amir. Amir Goldstein (2): nfsd: encode stat->mtime for getattr instead of inode->i_mtime nfsd: store stat times in fill_pre_wcc() instead of inode times fs/locks.c | 6 ++---- fs/nfsd/nfs3xdr.c | 31 ++++++++++++++++++++++++++++++- fs/nfsd/nfs4xdr.c | 2 +- fs/nfsd/nfsfh.h | 28 ++++++---------------------- fs/nfsd/nfsxdr.c | 1 + 5 files changed, 40 insertions(+), 28 deletions(-) -- 2.7.4
