Files
linux/fs
Kinglong Mee 5b53dc88b0 NFS: Avoid infinite loop when RELEASE_LOCKOWNER getting expired error
Fix Commit 60ea681299 (NFS: Migration support for RELEASE_LOCKOWNER)
If getting expired error, client will enter a infinite loop as,

client                            server
   RELEASE_LOCKOWNER(old clid) ----->
                <--- expired error
   RENEW(old clid)             ----->
                <--- expired error
   SETCLIENTID                 ----->
                <--- a new clid
   SETCLIENTID_CONFIRM (new clid) -->
                <--- ok
   RELEASE_LOCKOWNER(old clid) ----->
                <--- expired error
   RENEW(new clid)             ----->
                <-- ok
   RELEASE_LOCKOWNER(old clid) ----->
                <--- expired error
   RENEW(new clid)             ----->
                <-- ok
                ... ...

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
[Trond: replace call to nfs4_async_handle_error() with
 nfs4_schedule_lease_recovery()]
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-08-04 16:51:38 -04:00
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