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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2009-03-08 16:30:55 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2009-03-08 16:30:55 -0700
commitd15c22e78674f9a5bc0de0932a43abe1aafae303 (patch)
tree3e4198c44bd2d9184e91647346c66aa95e28f843 /fs/xfs/linux-2.6/xfs_export.c
parent0f4954819fb6f840d46076f0dbd313ef5da48f5d (diff)
parentfec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff)
Merge commit 'v2.6.29-rc7' into next
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_export.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_export.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 595751f78350..87b8cbd23d4b 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -126,11 +126,26 @@ xfs_nfs_get_inode(
if (ino == 0)
return ERR_PTR(-ESTALE);
- error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0);
- if (error)
+ /*
+ * The XFS_IGET_BULKSTAT means that an invalid inode number is just
+ * fine and not an indication of a corrupted filesystem. Because
+ * clients can send any kind of invalid file handle, e.g. after
+ * a restore on the server we have to deal with this case gracefully.
+ */
+ error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT,
+ XFS_ILOCK_SHARED, &ip, 0);
+ if (error) {
+ /*
+ * EINVAL means the inode cluster doesn't exist anymore.
+ * This implies the filehandle is stale, so we should
+ * translate it here.
+ * We don't use ESTALE directly down the chain to not
+ * confuse applications using bulkstat that expect EINVAL.
+ */
+ if (error == EINVAL)
+ error = ESTALE;
return ERR_PTR(-error);
- if (!ip)
- return ERR_PTR(-EIO);
+ }
if (ip->i_d.di_gen != generation) {
xfs_iput_new(ip, XFS_ILOCK_SHARED);