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autofs: fix protocol sub version setting

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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@themaw.net>
Reviewed-by: Bill O'Donnell <bodonnel@redhat.com>
Message-Id: <20230922041215.13675-9-raven@themaw.net>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Ian Kent 2023-09-22 12:12:15 +08:00 committed by Christian Brauner
parent e6ec453bd0
commit dede367149
1 changed files with 11 additions and 1 deletions
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12
fs/autofs/inode.c
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@ -287,7 +287,17 @@ 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;
}