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| author | Anna Schumaker <Anna.Schumaker@netapp.com> | 2014-05-06 09:12:30 -0400 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-05-28 18:40:04 -0400 |
| commit | 4a0de55c565a36cac8422b76a948c4634a90781e (patch) | |
| tree | 749ab695ab23756f1f7c791a17a2125eac993d9c /include/linux/nfs_page.h | |
| parent | 00bfa30abe86982ce1929e9cabd703e5546106bd (diff) | |
| download | lwn-4a0de55c565a36cac8422b76a948c4634a90781e.tar.gz lwn-4a0de55c565a36cac8422b76a948c4634a90781e.zip | |
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.h | 7 |
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 *, |