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authorWeston Andros Adamson <dros@primarydata.com>2014-05-15 19:56:54 +0400
committerTrond Myklebust <trond.myklebust@primarydata.com>2014-05-29 19:11:48 +0400
commit5002c58639d41b93e800c8a4b7eca49c40d57822 (patch)
treeb9d9981b3396f4f7a5f518f905d8a1199e087509 /include/linux/nfs.h
parent7f714720fac03383d687dbe39494cc96b845bd46 (diff)
downloadlinux-5002c58639d41b93e800c8a4b7eca49c40d57822.tar.xz
pnfs: support multiple verfs per direct req
Support direct requests that span multiple pnfs data servers by comparing nfs_pgio_header->verf to a cached verf in pnfs_commit_bucket. Continue to use dreq->verf if the MDS is used / non-pNFS. Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/nfs.h')
-rw-r--r--include/linux/nfs.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index 3e794c12e90a..610af5155ef2 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -46,6 +46,9 @@ static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *sourc
enum nfs3_stable_how {
NFS_UNSTABLE = 0,
NFS_DATA_SYNC = 1,
- NFS_FILE_SYNC = 2
+ NFS_FILE_SYNC = 2,
+
+ /* used by direct.c to mark verf as invalid */
+ NFS_INVALID_STABLE_HOW = -1
};
#endif /* _LINUX_NFS_H */