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authorAnna Schumaker <Anna.Schumaker@netapp.com>2014-05-06 17:12:30 +0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-05-29 02:40:04 +0400
commit4a0de55c565a36cac8422b76a948c4634a90781e (patch)
tree749ab695ab23756f1f7c791a17a2125eac993d9c /include/linux/nfs_page.h
parent00bfa30abe86982ce1929e9cabd703e5546106bd (diff)
downloadlinux-4a0de55c565a36cac8422b76a948c4634a90781e.tar.xz
NFS: Create a common rw_header_alloc and rw_header_free function
I create a new struct nfs_rw_ops to decide the differences between reads and writes. This struct will be set when initializing a new nfs_pgio_descriptor, and then passed on to the nfs_rw_header when a new header is allocated. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/nfs_page.h')
-rw-r--r--include/linux/nfs_page.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 92ce5783b707..594812546c25 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -52,6 +52,11 @@ struct nfs_pageio_ops {
int (*pg_doio)(struct nfs_pageio_descriptor *);
};
+struct nfs_rw_ops {
+ struct nfs_rw_header *(*rw_alloc_header)(void);
+ void (*rw_free_header)(struct nfs_rw_header *);
+};
+
struct nfs_pageio_descriptor {
struct list_head pg_list;
unsigned long pg_bytes_written;
@@ -63,6 +68,7 @@ struct nfs_pageio_descriptor {
struct inode *pg_inode;
const struct nfs_pageio_ops *pg_ops;
+ const struct nfs_rw_ops *pg_rw_ops;
int pg_ioflags;
int pg_error;
const struct rpc_call_ops *pg_rpc_callops;
@@ -86,6 +92,7 @@ extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc,
struct inode *inode,
const struct nfs_pageio_ops *pg_ops,
const struct nfs_pgio_completion_ops *compl_ops,
+ const struct nfs_rw_ops *rw_ops,
size_t bsize,
int how);
extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *,