[PATCH RFC] nfs-utils: mount: handle EACCES during version negotiation

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mount() can return EACCES for servers which permit 4.0
but are configured not to allow 4.1  This is currently
only handled by the default case, so these mounts fail
without retrying a lower minor.

Add handling for EACCES to be retried with a lower
minor version.

Signed-off-by: Frank Sorenson <sorenson@xxxxxxxxxx>
---
 utils/mount/stropts.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
index 1d30d34..4401314 100644
--- a/utils/mount/stropts.c
+++ b/utils/mount/stropts.c
@@ -862,6 +862,9 @@ check_result:
 	case EINVAL:
 		/* A less clear indication that our client
 		 * does not support NFSv4 minor version. */
+	case EACCES:
+		/* An unclear indication that the server
+		 * may not support NFSv4 minor version. */
 		if (mi->version.v_mode != V_SPECIFIC) {
 			if (mi->version.minor > 0) {
 				mi->version.minor--;
-- 
2.13.5

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