[PATCH] NFS: Set the stable writes flag when initialising the super block

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From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

We need to wait for outstanding writes on the page to complete before we
can update it.

Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
 fs/nfs/fs_context.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/fs_context.c b/fs/nfs/fs_context.c
index b6be02aa79f0..971a9251c1d9 100644
--- a/fs/nfs/fs_context.c
+++ b/fs/nfs/fs_context.c
@@ -1512,6 +1512,8 @@ static int nfs_init_fs_context(struct fs_context *fc)
 		ctx->selected_flavor	= RPC_AUTH_MAXFLAVOR;
 		ctx->minorversion	= 0;
 		ctx->need_mount		= true;
+
+		fc->s_iflags		|= SB_I_STABLE_WRITES;
 	}
 	fc->fs_private = ctx;
 	fc->ops = &nfs_fs_context_ops;
-- 
2.29.2




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