| Message ID | 1381522554-22243-1-git-send-email-geyslan@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi,
I've got a problem on the nfs export operation. I'm not sure if this is the right place to ask this, if not, can you please tell me where?
Here's what I need:
1. I have a folder named /mnt/fs1 to be exported.
2. All the host in subnetwork 192.168.0.0/16 should be able access this folder, but their root should be squashed.
3. Some specified host in the same subnetwork can gain the root permission on the folder, for example: 192.168.0.21, 192.168.0.22.
I've got a SLES11SP1 box as the nfs server, the nfs clients are SLES11SP1, too. And the test uses nfsv3.
Here are the commands I used to do the export:
#exportfs -o rw,root_squash 192.168.0.0/16:/mnt/fs1 #exportfs -o rw,no_root_squash 192.168.0.21:/mnt/fs1 #exportfs -o rw,no_root_squash 192.168.0.22:/mnt/fs1
After this, everything works as expected.
But, after the following operations:
#exportfs -u 192.168.0.0/16:/mnt/fs1 /* Delete this export */
# exportfs -o rw,root_squash 192.168.0.0/16:/mnt/fs1 /* And add it again */
Hosts on 192.168.0.21 and 192.168.0.22 doesn't get root permission any more. when I tried to write a file, it complains about "Permission denied".
So, does the order of exportfs command has something to do the final result? Or am I doing something wrong?
B.R
Minlan Wang
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diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c index bb939ed..0c29b1b 100644 --- a/fs/nfs/unlink.c +++ b/fs/nfs/unlink.c @@ -493,7 +493,7 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry) unsigned long long fileid; struct dentry *sdentry; struct rpc_task *task; - int error = -EIO; + int error = -EBUSY; dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n", dentry->d_parent->d_name.name, dentry->d_name.name, @@ -503,7 +503,6 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry) /* * We don't allow a dentry to be silly-renamed twice. */ - error = -EBUSY; if (dentry->d_flags & DCACHE_NFSFS_RENAMED) goto out;
the 'error' variable was been assigned twice in vain. Signed-off-by: Geyslan G. Bem <geyslan@gmail.com> --- fs/nfs/unlink.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)