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SubjectRe: GFS2: Pre-pull patch posting (merge window)
On 03/23/2012 12:41 PM, David Teigland wrote:

>
>> on i386:
>>
>> ERROR: "sctp_do_peeloff" [fs/dlm/dlm.ko] undefined!
>>
>>
>> GFS2_FS selects DLM (if GFS2_FS_LOCKING_DLM, which is enabled).
>> GFS2_FS selects IP_SCTP if DLM_SCTP, which is not enabled and not
>> used anywhere else in the kernel tree AFAICT.
>> DLM just always selects IP_SCTP.
>
> Here's what we have now:
>
> config GFS2_FS
> tristate "GFS2 file system support"
> depends on (64BIT || LBDAF)
> select DLM if GFS2_FS_LOCKING_DLM
> select CONFIGFS_FS if GFS2_FS_LOCKING_DLM
> select SYSFS if GFS2_FS_LOCKING_DLM
> select IP_SCTP if DLM_SCTP
> select FS_POSIX_ACL
> select CRC32
> select QUOTACTL
>
> menuconfig DLM
> tristate "Distributed Lock Manager (DLM)"
> depends on EXPERIMENTAL && INET
> depends on SYSFS && CONFIGFS_FS && (IPV6 || IPV6=n)
> select IP_SCTP
>
> Why does gfs2 Kconfig bother with SCTP at all? It seems that line should
> just be removed. I'll also remove EXPERIMENTAL. I don't understand the
> vagaries of Kconfig, so a dumb question, how could sctp_do_peeloff
> possibly be undefined if we're selecting SCTP.

What is selecting SCTP? DLM? so GFS2 selects DLM, but selects
don't follow dependency chains. Also, the "select IP_SCTP if DLM_SCTP"
in GFS2 is meaningless since there is no DLM_SCTP.

I just verified that the (posted) failing config still fails with
today's linux-next.

--
~Randy


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