Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | Subject | Re: Problems with NFS exports | From | Florian Weimer <> | Date | Wed, 07 Aug 2002 11:25:33 +0200 |
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Florian Weimer <fw@deneb.enyo.de> writes:
> I'm seeing weired errors with nfsctl(): > > This works: > > nfsservctl(NFSCTL_EXPORT, "deneb.enyo.de", "/mnt/storage/2/backup/deneb/tmp", makedev(3, 66), ino 167772288, uid 65534, gid 65534) = 0 > > But a subsequent call fails: > > nfsservctl(NFSCTL_EXPORT, "deneb.enyo.de", "/mnt/storage/2/backup/deneb", makedev(3, 66), ino 150995072, uid 65534, gid 65534) = -1 EINVAL (Invalid argument) > > I don't understand what makes the difference (the inode values are > correct). This is kernel 2.4.18 with XFS support, and the directory > resides on an XFS file system. > > Any ideas?
(Full quote because of additional recipeint.)
It appears that a directory tree can only be exported once. Is this intentional? If yes, the following patch should be applied (to linux/fs/nfsd/export.c), so that the return value is more meaningful:
--- export.c 2002/08/07 09:22:11 1.1 +++ export.c 2002/08/07 09:22:28 @@ -219,6 +219,7 @@ goto finish; } + err = -EBUSY; if ((parent = exp_child(clp, dev, nd.dentry)) != NULL) { dprintk("exp_export: export not valid (Rule 3).\n"); goto finish;
After this change, the userspace tools can issue are more meaningful error message for this case. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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