Add a 'deferred cache invalidation' mode that we can use when we thing
the NFS cache may have been changed on the server, but the file in
question is already open and is cached on the client. In order to avoid
performance issues due to false positive detection of server changes,
we defer invalidating the cache until the file has been closed, and
the cached data is no longer in active use.
Trond Myklebust (3):
NFS: Fix up ftrace printout of the cache invalidation flags
NFS: Fix up ftrace logging of nfs_inode flags
NFS: Add deferred cache invalidation for close-to-open consistency
violations
fs/nfs/dir.c | 4 ++++
fs/nfs/inode.c | 15 +++++++++++----
fs/nfs/nfstrace.h | 22 ++++++++++++++--------
include/linux/nfs_fs.h | 2 ++
4 files changed, 31 insertions(+), 12 deletions(-)
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2.21.0
