perf cpumap: Add new map type for aggregation

[linux-2.6-microblaze.git] / fs / ceph / export.c

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 79dc068..e088843 100644 (file)
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -172,9 +172,16 @@ struct inode *ceph_lookup_inode(struct super_block *sb, u64 ino)
 static struct dentry *__fh_to_dentry(struct super_block *sb, u64 ino)
 {
        struct inode *inode = __lookup_inode(sb, ino);
+       int err;
+
        if (IS_ERR(inode))
                return ERR_CAST(inode);
-       if (inode->i_nlink == 0) {
+       /* We need LINK caps to reliably check i_nlink */
+       err = ceph_do_getattr(inode, CEPH_CAP_LINK_SHARED, false);
+       if (err)
+               return ERR_PTR(err);
+       /* -ESTALE if inode as been unlinked and no file is open */
+       if ((inode->i_nlink == 0) && (atomic_read(&inode->i_count) == 1)) {
                iput(inode);
                return ERR_PTR(-ESTALE);
        }