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authorOlga Kornievskaia <kolga@netapp.com>2018-08-13 22:33:01 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2018-08-14 00:04:23 +0300
commite4648aa4f98a87cf0a83f73a5864cede073053a0 (patch)
treec6e48236e743a8be03bf7062d33e98d8e550aecb /fs/nfs/nfs4_fs.h
parent6b8d84e2f1299a5876ed812b137c49686cc85c7c (diff)
downloadlinux-e4648aa4f98a87cf0a83f73a5864cede073053a0.tar.xz
NFS recover from destination server reboot for copies
Mark the destination state to indicate a server-side copy is happening. On detecting a reboot and recovering open state check if any state is engaged in a server-side copy, if so, find the copy and mark it and then signal the waiting thread. Upon wakeup, if copy was marked then propage EAGAIN to the nfsd_copy_file_range and restart the copy from scratch. Signed-off-by: Olga Kornievskaia <kolga@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/nfs4_fs.h')
-rw-r--r--fs/nfs/nfs4_fs.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index e87d414c40d0..542b2fce0447 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -163,6 +163,9 @@ enum {
NFS_STATE_RECOVERY_FAILED, /* OPEN stateid state recovery failed */
NFS_STATE_MAY_NOTIFY_LOCK, /* server may CB_NOTIFY_LOCK */
NFS_STATE_CHANGE_WAIT, /* A state changing operation is outstanding */
+#ifdef CONFIG_NFS_V4_2
+ NFS_CLNT_DST_SSC_COPY_STATE, /* dst server open state on client*/
+#endif /* CONFIG_NFS_V4_2 */
};
struct nfs4_state {