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authorJ. Bruce Fields <bfields@redhat.com>2015-10-15 23:11:01 +0300
committerJ. Bruce Fields <bfields@redhat.com>2015-10-23 22:57:31 +0300
commit4eaea13425078272895ec37814c6878d78b8db9f (patch)
treea24bbc91aac3af627870e62b998218951e9a1c71 /fs
parent2b63482185e6054cc11ca6d6c073f90160c161fd (diff)
downloadlinux-4eaea13425078272895ec37814c6878d78b8db9f.tar.xz
nfsd: improve client_has_state to check for unused openowners
At least in the v4.0 case openowners can hang around for a while after last close, but they shouldn't really block (for example), a new mount with a different principal. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfsd/nfs4state.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index bac6207191d5..f2ea343086b8 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -2256,16 +2256,20 @@ nfsd4_set_ex_flags(struct nfs4_client *new, struct nfsd4_exchange_id *clid)
clid->flags = new->cl_exchange_flags;
}
+static bool client_has_openowners(struct nfs4_client *clp)
+{
+ struct nfs4_openowner *oo;
+
+ list_for_each_entry(oo, &clp->cl_openowners, oo_perclient) {
+ if (!list_empty(&oo->oo_owner.so_stateids))
+ return true;
+ }
+ return false;
+}
+
static bool client_has_state(struct nfs4_client *clp)
{
- /*
- * Note clp->cl_openowners check isn't quite right: there's no
- * need to count owners without stateid's.
- *
- * Also note in 4.0 case should also be checking for openowners
- * kept around just for close handling.
- */
- return !list_empty(&clp->cl_openowners)
+ return client_has_openowners(clp)
#ifdef CONFIG_NFSD_PNFS
|| !list_empty(&clp->cl_lo_states)
#endif