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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:37 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:37 -0500
commit3feb2d49394b7874348a6e43c076b780c1d222c5 (patch)
tree6d27d4170fd9435574bd804033793f9d0d69a355 /fs/nfs/read.c
parent5db3a7b2cabe8f0957683f798c4f8fa8605f9ebb (diff)
downloadop-kernel-dev-3feb2d49394b7874348a6e43c076b780c1d222c5.zip
op-kernel-dev-3feb2d49394b7874348a6e43c076b780c1d222c5.tar.gz
NFS: Uninline nfs_writedata_(alloc|free) and nfs_readdata_(alloc|free)
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/read.c')
-rw-r--r--fs/nfs/read.c32
1 files changed, 31 insertions, 1 deletions
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 2da255f..3961524 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -40,10 +40,40 @@ static const struct rpc_call_ops nfs_read_partial_ops;
static const struct rpc_call_ops nfs_read_full_ops;
static kmem_cache_t *nfs_rdata_cachep;
-mempool_t *nfs_rdata_mempool;
+static mempool_t *nfs_rdata_mempool;
#define MIN_POOL_READ (32)
+struct nfs_read_data *nfs_readdata_alloc(unsigned int pagecount)
+{
+ struct nfs_read_data *p = mempool_alloc(nfs_rdata_mempool, SLAB_NOFS);
+
+ if (p) {
+ memset(p, 0, sizeof(*p));
+ INIT_LIST_HEAD(&p->pages);
+ if (pagecount < NFS_PAGEVEC_SIZE)
+ p->pagevec = &p->page_array[0];
+ else {
+ size_t size = ++pagecount * sizeof(struct page *);
+ p->pagevec = kmalloc(size, GFP_NOFS);
+ if (p->pagevec) {
+ memset(p->pagevec, 0, size);
+ } else {
+ mempool_free(p, nfs_rdata_mempool);
+ p = NULL;
+ }
+ }
+ }
+ return p;
+}
+
+void nfs_readdata_free(struct nfs_read_data *p)
+{
+ if (p && (p->pagevec != &p->page_array[0]))
+ kfree(p->pagevec);
+ mempool_free(p, nfs_rdata_mempool);
+}
+
void nfs_readdata_release(void *data)
{
nfs_readdata_free(data);
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