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| author | Anna Schumaker <Anna.Schumaker@netapp.com> | 2014-09-26 19:58:48 +0200 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2014-09-30 22:24:56 +0200 |
| commit | 1c6dcbe5ceff81c2cf8d929646af675cd59fe7c0 (patch) | |
| tree | 1e432e1decca1b3a6de427db31db5737d997a7f5 /include | |
| parent | Merge commit '24bab491220f' into client-4.2 (diff) | |
| download | linux-1c6dcbe5ceff81c2cf8d929646af675cd59fe7c0.tar.xz linux-1c6dcbe5ceff81c2cf8d929646af675cd59fe7c0.zip | |
NFS: Implement SEEK
The SEEK operation is used when an application makes an lseek call with
either the SEEK_HOLE or SEEK_DATA flags set. I fall back on
nfs_file_llseek() if the server does not have SEEK support.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nfs4.h | 3 | ||||
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 1 | ||||
| -rw-r--r-- | include/linux/nfs_xdr.h | 19 |
3 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 026b0c042c40..356acc2846fd 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -487,6 +487,9 @@ enum { NFSPROC4_CLNT_GETDEVICELIST, NFSPROC4_CLNT_BIND_CONN_TO_SESSION, NFSPROC4_CLNT_DESTROY_CLIENTID, + + /* nfs42 */ + NFSPROC4_CLNT_SEEK, }; /* nfs41 types */ diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 922be2e050f5..a32ba0d7a98f 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -230,5 +230,6 @@ struct nfs_server { #define NFS_CAP_STATEID_NFSV41 (1U << 16) #define NFS_CAP_ATOMIC_OPEN_V1 (1U << 17) #define NFS_CAP_SECURITY_LABEL (1U << 18) +#define NFS_CAP_SEEK (1U << 19) #endif diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 0040629894df..0051b1ad2b37 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1239,6 +1239,25 @@ struct pnfs_ds_commit_info { #endif /* CONFIG_NFS_V4_1 */ +#ifdef CONFIG_NFS_V4_2 +struct nfs42_seek_args { + struct nfs4_sequence_args seq_args; + + struct nfs_fh *sa_fh; + nfs4_stateid sa_stateid; + u64 sa_offset; + u32 sa_what; +}; + +struct nfs42_seek_res { + struct nfs4_sequence_res seq_res; + unsigned int status; + + u32 sr_eof; + u64 sr_offset; +}; +#endif + struct nfs_page; #define NFS_PAGEVEC_SIZE (8U) |