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nfs: move nfs_pgio_data and remove nfs_rw_header

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nfs_rw_header was used to allocate an nfs_pgio_header along with an
nfs_pgio_data, because a _header would need at least one _data.

Now there is only ever one nfs_pgio_data for each nfs_pgio_header -- move
it to nfs_pgio_header and get rid of nfs_rw_header.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Weston Andros Adamson <dros@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Weston Andros Adamson
2014-06-09 11:48:33 -04:00
committed by Trond Myklebust
parent 66b0686049
commit 1e7f3a4859
8 changed files with 71 additions and 119 deletions
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10
fs/nfs/write.c
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@@ -70,18 +70,18 @@ void nfs_commit_free(struct nfs_commit_data *p)
}
EXPORT_SYMBOL_GPL(nfs_commit_free);
static struct nfs_rw_header *nfs_writehdr_alloc(void)
static struct nfs_pgio_header *nfs_writehdr_alloc(void)
{
struct nfs_rw_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO);
struct nfs_pgio_header *p = mempool_alloc(nfs_wdata_mempool, GFP_NOIO);
if (p)
memset(p, 0, sizeof(*p));
return p;
}
static void nfs_writehdr_free(struct nfs_rw_header *whdr)
static void nfs_writehdr_free(struct nfs_pgio_header *hdr)
{
mempool_free(whdr, nfs_wdata_mempool);
mempool_free(hdr, nfs_wdata_mempool);
}
static void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
@@ -1655,7 +1655,7 @@ int nfs_migrate_page(struct address_space *mapping, struct page *newpage,
int __init nfs_init_writepagecache(void)
{
nfs_wdata_cachep = kmem_cache_create("nfs_write_data",
sizeof(struct nfs_rw_header),
sizeof(struct nfs_pgio_header),
0, SLAB_HWCACHE_ALIGN,
NULL);
if (nfs_wdata_cachep == NULL)