[Bluetooth] Restrict well known PSM to privileged users

[pandora-kernel.git] / fs / xfs / xfs_iget.c

diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 4b0c188..c1c89da 100644 (file)
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -237,6 +237,36 @@ again:
 
                                        goto again;
                                }
+                               ASSERT(xfs_iflags_test(ip, XFS_IRECLAIMABLE));
+
+                               /*
+                                * If lookup is racing with unlink, then we
+                                * should return an error immediately so we
+                                * don't remove it from the reclaim list and
+                                * potentially leak the inode.
+                                */
+                               if ((ip->i_d.di_mode == 0) &&
+                                   !(flags & XFS_IGET_CREATE)) {
+                                       read_unlock(&ih->ih_lock);
+                                       return ENOENT;
+                               }
+
+                               /*
+                                * There may be transactions sitting in the
+                                * incore log buffers or being flushed to disk
+                                * at this time.  We can't clear the
+                                * XFS_IRECLAIMABLE flag until these
+                                * transactions have hit the disk, otherwise we
+                                * will void the guarantee the flag provides
+                                * xfs_iunpin()
+                                */
+                               if (xfs_ipincount(ip)) {
+                                       read_unlock(&ih->ih_lock);
+                                       xfs_log_force(mp, 0,
+                                               XFS_LOG_FORCE|XFS_LOG_SYNC);
+                                       XFS_STATS_INC(xs_ig_frecycle);
+                                       goto again;
+                               }
 
                                vn_trace_exit(vp, "xfs_iget.alloc",
                                        (inst_t *)__return_address);