knfsd: move nfsv4 slab creation/destruction to module init/exit
We have some slabs that the nfs4 server uses to store state objects.
We're currently creating and destroying those slabs whenever the server
is brought up or down. That seems excessive; may as well just do that
in module initialization and exit.
Also add some minor header cleanup. (Thanks to Andrew Morton for that
and a compile fix.)
Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
Acked-by: Neil Brown <neilb@suse.de>
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 2b20eb8..09573b9 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1021,7 +1021,7 @@
*slab = NULL;
}
-static void
+void
nfsd4_free_slabs(void)
{
nfsd4_free_slab(&stateowner_slab);
@@ -3152,11 +3152,14 @@
/* initialization to perform at module load time: */
-void
+int
nfs4_state_init(void)
{
- int i;
+ int i, status;
+ status = nfsd4_init_slabs();
+ if (status)
+ return status;
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
INIT_LIST_HEAD(&conf_id_hashtbl[i]);
INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -3185,6 +3188,7 @@
for (i = 0; i < CLIENT_HASH_SIZE; i++)
INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
reclaim_str_hashtbl_size = 0;
+ return 0;
}
static void
@@ -3245,20 +3249,15 @@
set_max_delegations();
}
-int
+void
nfs4_state_start(void)
{
- int status;
-
if (nfs4_init)
- return 0;
- status = nfsd4_init_slabs();
- if (status)
- return status;
+ return;
nfsd4_load_reboot_recovery_data();
__nfs4_state_start();
nfs4_init = 1;
- return 0;
+ return;
}
int
@@ -3316,7 +3315,6 @@
nfs4_lock_state();
nfs4_release_reclaim();
__nfs4_state_shutdown();
- nfsd4_free_slabs();
nfs4_unlock_state();
}