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authorAndy Adamson <andros@netapp.com>2011-03-23 13:27:54 +0000
committerTrond Myklebust <Trond.Myklebust@netapp.com>2011-03-23 15:29:04 -0400
commit863a3c6c686d5773f7192a4818769e15db12ce08 (patch)
tree3ff8bf04c583aa0c16ae30b0821bc9148d49a47a /fs/nfs/pnfs.h
parente0c2b3801828aadb65dec9f67f7c6b7a675ad007 (diff)
downloadlinux-stericsson-863a3c6c686d5773f7192a4818769e15db12ce08.tar.gz
NFSv4.1: layoutcommit
The filelayout driver sends LAYOUTCOMMIT only when COMMIT goes to the data server (as opposed to the MDS) and the data server WRITE is not NFS_FILE_SYNC. Only whole file layout support means that there is only one IOMODE_RW layout segment. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Alexandros Batsakis <batsakis@netapp.com> Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Fred Isaman <iisaman@citi.umich.edu> Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn> Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn> Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn> Tested-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Benny Halevy <bhalevy@panasas.com> Signed-off-by: Fred Isaman <iisaman@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/pnfs.h')
-rw-r--r--fs/nfs/pnfs.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 5370f1b9aa43..0806c77862b6 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -43,6 +43,8 @@ struct pnfs_layout_segment {
atomic_t pls_refcount;
unsigned long pls_flags;
struct pnfs_layout_hdr *pls_layout;
+ struct rpc_cred *pls_lc_cred; /* LAYOUTCOMMIT credential */
+ loff_t pls_end_pos; /* LAYOUTCOMMIT write end */
};
enum pnfs_try_status {
@@ -152,7 +154,8 @@ bool pnfs_roc(struct inode *ino);
void pnfs_roc_release(struct inode *ino);
void pnfs_roc_set_barrier(struct inode *ino, u32 barrier);
bool pnfs_roc_drain(struct inode *ino, u32 *barrier);
-
+void pnfs_set_layoutcommit(struct nfs_write_data *wdata);
+int pnfs_layoutcommit_inode(struct inode *inode, int sync);
static inline int lo_fail_bit(u32 iomode)
{
@@ -325,6 +328,10 @@ static inline void pnfs_clear_request_commit(struct nfs_page *req)
{
}
+static inline int pnfs_layoutcommit_inode(struct inode *inode, int sync)
+{
+ return 0;
+}
#endif /* CONFIG_NFS_V4_1 */
#endif /* FS_NFS_PNFS_H */