There were a number of updates to protocol version 4, take account of that when setting the super block info sub version field. Signed-off-by: Ian Kent <raven@xxxxxxxxxx> --- fs/autofs/inode.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index 3f2dfed428f9..53c0df354206 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -279,7 +279,17 @@ static int autofs_validate_protocol(struct fs_context *fc) sbi->version = AUTOFS_MAX_PROTO_VERSION; else sbi->version = sbi->max_proto; - sbi->sub_version = AUTOFS_PROTO_SUBVERSION; + + switch (sbi->version) { + case 4: + sbi->sub_version = 7; + break; + case 5: + sbi->sub_version = AUTOFS_PROTO_SUBVERSION; + break; + default: + sbi->sub_version = 0; + } return 0; } -- 2.41.0