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NFS: create struct nfs_page_array

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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>
This commit is contained in:
Fred Isaman
2012-04-20 14:47:45 -04:00
committed by Trond Myklebust
parent cd841605f7
commit 30dd374f6f
7 changed files with 67 additions and 56 deletions
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13
fs/nfs/pagelist.c
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@@ -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)
{