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authorScott Mayhew <smayhew@redhat.com>2020-02-19 23:52:15 +0300
committerChuck Lever <chuck.lever@oracle.com>2020-03-16 19:04:30 +0300
commit7627d7dc79a8edd4b8f946a66002ea4205203112 (patch)
treeada1890d3a593920ca589e8f5c5fd6836a66fc60 /fs/nfsd/netns.h
parentfb33c6510d5595144d585aa194d377cf74d31911 (diff)
downloadlinux-7627d7dc79a8edd4b8f946a66002ea4205203112.tar.xz
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 <smayhew@redhat.com> [bfields: fix up major_id too] Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/netns.h')
-rw-r--r--fs/nfsd/netns.h2
1 files changed, 2 insertions, 0 deletions
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 */