From 7627d7dc79a8edd4b8f946a66002ea4205203112 Mon Sep 17 00:00:00 2001 From: Scott Mayhew Date: Wed, 19 Feb 2020 15:52:15 -0500 Subject: nfsd: set the server_scope during service startup Currently, nfsd4_encode_exchange_id() encodes the utsname nodename string in the server_scope field. In a multi-host container environemnt, if an nfsd container is restarted on a different host than it was originally running on, clients will see a server_scope mismatch and will not attempt to reclaim opens. Instead, set the server_scope while we're in a process context during service startup, so we get the utsname nodename of the current process and store that in nfsd_net. Signed-off-by: Scott Mayhew [bfields: fix up major_id too] Signed-off-by: J. Bruce Fields Signed-off-by: Chuck Lever --- fs/nfsd/netns.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/nfsd/netns.h') diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 2baf32311e00..09aa545825bd 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -172,6 +172,8 @@ struct nfsd_net { unsigned int longest_chain_cachesize; struct shrinker nfsd_reply_cache_shrinker; + /* utsname taken from the the process that starts the server */ + char nfsd_name[UNX_MAXNODENAME+1]; }; /* Simple check to find out if a given net was properly initialized */ -- cgit v1.2.3