diff options
| author |   Dai Ngo <dai.ngo@oracle.com> | 2022-09-14 08:54:26 -0700 |
|---|---|---|
| committer |   Chuck Lever <chuck.lever@oracle.com> | 2022-09-26 14:02:41 -0400 |
| commit | 7746b32f467b3813fb61faaab3258de35806a7ac (patch) | |
| tree | 22ace645fe5c97affbe517c0f36395cdc2e898cf /fs/nfsd/netns.h | |
| parent | NFSD: keep track of the number of courtesy clients in the system (diff) | |
| download | linux-dev-7746b32f467b3813fb61faaab3258de35806a7ac.tar.xz linux-dev-7746b32f467b3813fb61faaab3258de35806a7ac.zip | |
NFSD: add shrinker to reap courtesy clients on low memory condition
Add courtesy_client_reaper to react to low memory condition triggered
by the system memory shrinker.
The delayed_work for the courtesy_client_reaper is scheduled on
the shrinker's count callback using the laundry_wq.
The shrinker's scan callback is not used for expiring the courtesy
clients due to potential deadlocks.
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/netns.h')
| -rw-r--r-- | fs/nfsd/netns.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfsd/netns.h b/fs/nfsd/netns.h index 55c7006d6109..8c854ba3285b 100644 --- a/fs/nfsd/netns.h +++ b/fs/nfsd/netns.h @@ -194,6 +194,8 @@ struct nfsd_net { int nfs4_max_clients; atomic_t nfsd_courtesy_clients; + struct shrinker nfsd_client_shrinker; + struct delayed_work nfsd_shrinker_work; }; /* Simple check to find out if a given net was properly initialized */ |