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authorFred Isaman <iisaman@netapp.com>2012-04-20 14:47:45 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-04-27 14:10:37 -0400
commit30dd374f6fc1b202db3a1b57b61afff1326bad92 (patch)
tree7d3b631be897dd79a916ee8d410fd2bb92da4890 /fs/nfs/pagelist.c
parentcd841605f7a721878d8a2d1362484723d8abf569 (diff)
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NFS: create struct nfs_page_array
Both nfs_read_data and nfs_write_data devote several fields which can be combined into a single shared struct. Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pagelist.c')
-rw-r--r--fs/nfs/pagelist.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index d21fceaa9f62..d349bd4c48db 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -26,6 +26,19 @@
static struct kmem_cache *nfs_page_cachep;
+bool nfs_pgarray_set(struct nfs_page_array *p, unsigned int pagecount)
+{
+ p->npages = pagecount;
+ if (pagecount <= ARRAY_SIZE(p->page_array))
+ p->pagevec = p->page_array;
+ else {
+ p->pagevec = kcalloc(pagecount, sizeof(struct page *), GFP_KERNEL);
+ if (!p->pagevec)
+ p->npages = 0;
+ }
+ return p->pagevec != NULL;
+}
+
static inline struct nfs_page *
nfs_page_alloc(void)
{