Refactoring courtesy_client_reaper to generic low memory
shrinker so it can be used for other purposes.
Signed-off-by: Dai Ngo <dai.ngo@xxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 836bd825ca4a..142481bc96de 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4347,7 +4347,7 @@ nfsd4_init_slabs(void)
}
static unsigned long
-nfsd_courtesy_client_count(struct shrinker *shrink, struct shrink_control *sc)
+nfsd_lowmem_shrinker_count(struct shrinker *shrink, struct shrink_control *sc)
{
int cnt;
struct nfsd_net *nn = container_of(shrink,
@@ -4360,7 +4360,7 @@ nfsd_courtesy_client_count(struct shrinker *shrink, struct shrink_control *sc)
}
static unsigned long
-nfsd_courtesy_client_scan(struct shrinker *shrink, struct shrink_control *sc)
+nfsd_lowmem_shrinker_scan(struct shrinker *shrink, struct shrink_control *sc)
{
return SHRINK_STOP;
}
@@ -4387,8 +4387,8 @@ nfsd4_init_leases_net(struct nfsd_net *nn)
nn->nfs4_max_clients = max_t(int, max_clients, NFS4_CLIENTS_PER_GB);
atomic_set(&nn->nfsd_courtesy_clients, 0);
- nn->nfsd_client_shrinker.scan_objects = nfsd_courtesy_client_scan;
- nn->nfsd_client_shrinker.count_objects = nfsd_courtesy_client_count;
+ nn->nfsd_client_shrinker.scan_objects = nfsd_lowmem_shrinker_scan;
+ nn->nfsd_client_shrinker.count_objects = nfsd_lowmem_shrinker_count;
nn->nfsd_client_shrinker.seeks = DEFAULT_SEEKS;
return register_shrinker(&nn->nfsd_client_shrinker, "nfsd-client");
}
@@ -6125,17 +6125,24 @@ laundromat_main(struct work_struct *laundry)
}
static void
-courtesy_client_reaper(struct work_struct *reaper)
+courtesy_client_reaper(struct nfsd_net *nn)
{
struct list_head reaplist;
- struct delayed_work *dwork = to_delayed_work(reaper);
- struct nfsd_net *nn = container_of(dwork, struct nfsd_net,
- nfsd_shrinker_work);
nfs4_get_courtesy_client_reaplist(nn, &reaplist);
nfs4_process_client_reaplist(&reaplist);
}
+static void
+nfsd4_lowmem_shrinker(struct work_struct *work)
+{
+ struct delayed_work *dwork = to_delayed_work(work);
+ struct nfsd_net *nn = container_of(dwork, struct nfsd_net,
+ nfsd_shrinker_work);
+
+ courtesy_client_reaper(nn);
+}
+
static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_stid *stp)
{
if (!fh_match(&fhp->fh_handle, &stp->sc_file->fi_fhandle))
@@ -7958,7 +7965,7 @@ static int nfs4_state_create_net(struct net *net)
INIT_LIST_HEAD(&nn->blocked_locks_lru);
INIT_DELAYED_WORK(&nn->laundromat_work, laundromat_main);
- INIT_DELAYED_WORK(&nn->nfsd_shrinker_work, courtesy_client_reaper);
+ INIT_DELAYED_WORK(&nn->nfsd_shrinker_work, nfsd4_lowmem_shrinker);
get_net(net);
return 0;
--
2.9.5
