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NFSD: Note an additional requirement when passing TCP sockets to portlist

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User space must call listen(3) on SOCK_STREAM sockets passed into
/proc/fs/nfsd/portlist, otherwise that listener is ignored.  Document
this.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Chuck Lever 2009-04-23 19:32:03 -04:00 committed by J. Bruce Fields
parent 0b7c2f6fc7
commit c71206a7b4
1 changed files with 3 additions and 1 deletions
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4
fs/nfsd/nfsctl.c
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@ -1061,7 +1061,9 @@ static ssize_t __write_ports(struct file *file, char *buf, size_t size)
* buf: C string containing an unsigned * buf: C string containing an unsigned
* integer value representing a bound * integer value representing a bound
* but unconnected socket that is to be * but unconnected socket that is to be
* used as an NFSD listener * used as an NFSD listener; listen(3)
* must be called for a SOCK_STREAM
* socket, otherwise it is ignored
* size: non-zero length of C string in @buf * size: non-zero length of C string in @buf
* Output: * Output:
* On success: NFS service is started; * On success: NFS service is started;