Opps, forgot, this is for 2.6.20.x, guess I'll wait for the updated patch.

Thanks!
Phy

On 3/25/07, Neil Brown <[EMAIL PROTECTED]> wrote:
On Monday March 26, [EMAIL PROTECTED] wrote:
>
> I'll try to have a patch for you to try on 2.6.21rc4 shortly.
>

This patch should remove the Oops, but I have a suspicion that
something else is wrong, so I'd be very interested if you could run
with this for a few days and report the results.

NeilBrown

Signed-off-by: Neil Brown <[EMAIL PROTECTED]>

### Diffstat output
 ./fs/nfsd/nfsfh.c |   37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff .prev/fs/nfsd/nfsfh.c ./fs/nfsd/nfsfh.c
--- .prev/fs/nfsd/nfsfh.c       2007-03-26 10:51:01.000000000 +1000
+++ ./fs/nfsd/nfsfh.c   2007-03-26 11:04:20.000000000 +1000
@@ -324,7 +324,7 @@ fh_compose(struct svc_fh *fhp, struct sv
         *
         */

-       u8 version = 1;
+       u8 version;
        u8 fsid_type = 0;
        struct inode * inode = dentry->d_inode;
        struct dentry *parent = dentry->d_parent;
@@ -342,12 +342,45 @@ fh_compose(struct svc_fh *fhp, struct sv
         * the reference filehandle (if it is in the same export)
         * or the export options.
         */
+ retry:
+       version = 1;
        if (ref_fh && ref_fh->fh_export == exp) {
                version = ref_fh->fh_handle.fh_version;
                if (version == 0xca)
                        fsid_type = FSID_DEV;
-               else
+               else {
                        fsid_type = ref_fh->fh_handle.fh_fsid_type;
+                       /* need to check that this type works for this
+                        * export point.  As the lookup was done with
+                        * help from user-space, there is no guarantee
+                        */
+                       if (ref_fh == fhp)
+                               fh_put(ref_fh);
+                       ref_fh = NULL;
+                       switch(fsid_type) {
+                       case FSID_DEV:
+                               if (!old_valid_dev(ex_dev))
+                                       goto retry;
+                               break;
+                       case FSID_NUM:
+                               if (! (exp->ex_flags & NFSEXP_FSID))
+                                       goto retry;
+                               break;
+                       case FSID_MAJOR_MINOR:
+                       case FSID_ENCODE_DEV:
+                               break;
+                       case FSID_UUID8:
+                       case FSID_UUID16:
+                               if (!root_export)
+                                       goto retry;
+                               /* fall through */
+                       case FSID_UUID4_INUM:
+                       case FSID_UUID16_INUM:
+                               if (exp->ex_uuid == NULL)
+                                       goto retry;
+                               break;
+                       }
+               }
                /* We know this version/type works for this export
                 * so there is no need for further checks.
                 */

-
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