Hi,
here again are those patches from request deferral improvement set
that have not yet been applied.
I had previously missed the cache lookups in svcauth_gss, and have now
made them work correctly.
I also discovered that for NFSv4.1 and later, the current deferral
scheme is disabled once the request gets into the NFS layer (i.e. out
of the RPC layer). I don't know that 4.0 doesn't disable it as well
- maybe the problems it can cause are more severe with 4.1? With
this patch set included it might be acceptable to disable the current
scheme for 4.0.
I believe this is ready for wider testing and probably mainline
inclusion.
Thanks,
NeilBrown
---
NeilBrown (9):
sunrpc: close connection when a request is irretrievably lost.
sunrpc/cache: change deferred-request hash table to use hlist.
nfsd/idmap: drop special request deferal in favour of improved default.
sunrpc/cache: retry cache lookups that return -ETIMEDOUT
sunrpc/cache: allow threads to block while waiting for cache update.
sunrpc/cache: avoid variable over-loading in cache_defer_req
sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req
sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.
sunrpc/cache: change cache_defer_req to return -ve error, not boolean.
fs/nfsd/export.c | 18 ++++++
fs/nfsd/nfs4idmap.c | 105 ++++------------------------------
include/linux/sunrpc/cache.h | 5 +-
include/linux/sunrpc/svcauth.h | 10 ++-
net/sunrpc/auth_gss/svcauth_gss.c | 29 ++++++---
net/sunrpc/cache.c | 115 ++++++++++++++++++++++++-------------
net/sunrpc/svc.c | 3 +
net/sunrpc/svc_xprt.c | 11 ++++
net/sunrpc/svcauth_unix.c | 34 +++++++++--
9 files changed, 176 insertions(+), 154 deletions(-)
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