SUNRPC: Remove now-redundant RCU-safe rpc_task free path

Now that we've tightened up the locking rules for RPC queue wakeups, we can
remove the RCU-safe kfree calls...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

2 files changed, 3 insertions, 21 deletions

diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 87546cd277d5..be9e8270f4d7 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -58,19 +58,13 @@ struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
         return p;
 }
 
-static void nfs_readdata_rcu_free(struct rcu_head *head)
+static void nfs_readdata_free(struct nfs_read_data *p)
 {
-        struct nfs_read_data *p = container_of(head, struct nfs_read_data, task.u.tk_rcu);
         if (p && (p->pagevec != &p->page_array[0]))
                 kfree(p->pagevec);
         mempool_free(p, nfs_rdata_mempool);
 }
 
-static void nfs_readdata_free(struct nfs_read_data *rdata)
-{
-        call_rcu_bh(&rdata->task.u.tk_rcu, nfs_readdata_rcu_free);
-}
-
 void nfs_readdata_release(void *data)
 {
         struct nfs_read_data *rdata = data;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 84495ef90728..30513029c00c 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -58,19 +58,13 @@ struct nfs_write_data *nfs_commit_alloc(void)
         return p;
 }
 
-static void nfs_commit_rcu_free(struct rcu_head *head)
+void nfs_commit_free(struct nfs_write_data *p)
 {
-        struct nfs_write_data *p = container_of(head, struct nfs_write_data, task.u.tk_rcu);
         if (p && (p->pagevec != &p->page_array[0]))
                 kfree(p->pagevec);
         mempool_free(p, nfs_commit_mempool);
 }
 
-void nfs_commit_free(struct nfs_write_data *wdata)
-{
-        call_rcu_bh(&wdata->task.u.tk_rcu, nfs_commit_rcu_free);
-}
-
 struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
 {
         struct nfs_write_data *p = mempool_alloc(nfs_wdata_mempool, GFP_NOFS);
@@ -92,19 +86,13 @@ struct nfs_write_data *nfs_writedata_alloc(unsigned int pagecount)
         return p;
 }
 
-static void nfs_writedata_rcu_free(struct rcu_head *head)
+static void nfs_writedata_free(struct nfs_write_data *p)
 {
-        struct nfs_write_data *p = container_of(head, struct nfs_write_data, task.u.tk_rcu);
         if (p && (p->pagevec != &p->page_array[0]))
                 kfree(p->pagevec);
         mempool_free(p, nfs_wdata_mempool);
 }
 
-static void nfs_writedata_free(struct nfs_write_data *wdata)
-{
-        call_rcu_bh(&wdata->task.u.tk_rcu, nfs_writedata_rcu_free);
-}
-
 void nfs_writedata_release(void *data)
 {
         struct nfs_write_data *wdata = data;