NFS: Ensure the NFS_CAP_SECURITY_LABEL capability is set when appropriate
Commit ce62b114 ("NFS: Split attribute support out from the server capabilities") removed the logic from _nfs4_server_capabilities() that sets the NFS_CAP_SECURITY_LABEL capability based on the presence of FATTR4_WORD2_SECURITY_LABEL in the attr_bitmask of the server's response. Now NFS_CAP_SECURITY_LABEL is never set, which breaks labelled NFS. This was replaced with logic that clears the NFS_ATTR_FATTR_V4_SECURITY_LABEL bit in the newly added fattr_valid field based on the absence of FATTR4_WORD2_SECURITY_LABEL in the attr_bitmask of the server's response. This essentially has no effect since there's nothing looks for that bit in fattr_supported. So revert that part of the commit, but adding the logic that sets NFS_CAP_SECURITY_LABEL near where the other capabilities are set in _nfs4_server_capabilities(). Fixes: ce62b114 ("NFS: Split attribute support out from the server capabilities") Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
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