[PATCH 5.4 001/131] NFS/pNFS: Report EINVAL errors from connect() to the server

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5.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>

[ Upstream commit dd7d7ee3ba2a70d12d02defb478790cf57d5b87b ]

With IPv6, connect() can occasionally return EINVAL if a route is
unavailable. If this happens during I/O to a data server, we want to
report it using LAYOUTERROR as an inability to connect.

Fixes: dd52128afdde ("NFSv4.1/pnfs Ensure flexfiles reports all connection related errors")
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/nfs/flexfilelayout/flexfilelayout.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index fa1c920afb494..1b88b78f40bea 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1280,6 +1280,7 @@ static void ff_layout_io_track_ds_error(struct pnfs_layout_segment *lseg,
 		case -EPFNOSUPPORT:
 		case -EPROTONOSUPPORT:
 		case -EOPNOTSUPP:
+		case -EINVAL:
 		case -ECONNREFUSED:
 		case -ECONNRESET:
 		case -EHOSTDOWN:
-- 
2.40.1






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