Re: [PATCH 13/17] NFS: Client implementation of Labeled-NFS

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On 01/05/13 15:03, Myklebust, Trond wrote:
>> @@ -2409,10 +2468,26 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
>> >  			server->caps |= NFS_CAP_CTIME;
>> >  		if (res.attr_bitmask[1] & FATTR4_WORD1_TIME_MODIFY)
>> >  			server->caps |= NFS_CAP_MTIME;
>> > +#ifdef CONFIG_NFS_V4_SECURITY_LABEL
>> > +		if (res.attr_bitmask[2] & FATTR4_WORD2_SECURITY_LABEL)
>> > +			server->caps |= NFS_CAP_SECURITY_LABEL;
>> > +#endif
>> > +		memcpy(server->attr_bitmask_nl, res.attr_bitmask, 
>> > +				sizeof(server->attr_bitmask));
>> > +
>> > +		if (server->caps & NFS_CAP_SECURITY_LABEL)
>> > +			server->attr_bitmask_nl[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
>> >  
>> >  		memcpy(server->cache_consistency_bitmask, res.attr_bitmask, sizeof(server->cache_consistency_bitmask));
>> >  		server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
>> > -		server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
>> > +		server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA |
>> > +							FATTR4_WORD1_TIME_MODIFY;
>> > +#ifdef CONFIG_NFS_V4_SECURITY_LABEL
>> > +		server->cache_consistency_bitmask[2] &= FATTR4_WORD2_SECURITY_LABEL;
> Why? How is the security label relevant to cache consistency?
Its used to the set label bit in the GETATTR that goes out with ACCESS compound.

steved.

   
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