xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

NFSv4.1: layoutcommit

Browse Source 
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>
This commit is contained in:
Andy Adamson
2011-03-23 13:27:54 +00:00
committed by Trond Myklebust
parent e0c2b38018
commit 863a3c6c68
11 changed files with 387 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
fs/nfs/pnfs.h
View File

@@ -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 */