1 files changed, 15 insertions, 18 deletions

diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 6572ea4bc4df..d24057d58f17 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -297,7 +297,18 @@ static int nilfs_ioctl_move_inode_block(struct inode *inode,
                                (unsigned long long)vdesc->vd_vblocknr);
                 return ret;
         }
-        bh->b_private = vdesc;
+        if (unlikely(!list_empty(&bh->b_assoc_buffers))) {
+                printk(KERN_CRIT "%s: conflicting %s buffer: ino=%llu, "
+                       "cno=%llu, offset=%llu, blocknr=%llu, vblocknr=%llu\n",
+                       __func__, vdesc->vd_flags ? "node" : "data",
+                       (unsigned long long)vdesc->vd_ino,
+                       (unsigned long long)vdesc->vd_cno,
+                       (unsigned long long)vdesc->vd_offset,
+                       (unsigned long long)vdesc->vd_blocknr,
+                       (unsigned long long)vdesc->vd_vblocknr);
+                brelse(bh);
+                return -EEXIST;
+        }
         list_add_tail(&bh->b_assoc_buffers, buffers);
         return 0;
 }
@@ -335,24 +346,10 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
         list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) {
                 ret = nilfs_gccache_wait_and_mark_dirty(bh);
                 if (unlikely(ret < 0)) {
-                        if (ret == -EEXIST) {
-                                vdesc = bh->b_private;
-                                printk(KERN_CRIT
-                                       "%s: conflicting %s buffer: "
-                                       "ino=%llu, cno=%llu, offset=%llu, "
-                                       "blocknr=%llu, vblocknr=%llu\n",
-                                       __func__,
-                                       vdesc->vd_flags ? "node" : "data",
-                                       (unsigned long long)vdesc->vd_ino,
-                                       (unsigned long long)vdesc->vd_cno,
-                                       (unsigned long long)vdesc->vd_offset,
-                                       (unsigned long long)vdesc->vd_blocknr,
-                                       (unsigned long long)vdesc->vd_vblocknr);
-                        }
+                        WARN_ON(ret == -EEXIST);
                         goto failed;
                 }
                 list_del_init(&bh->b_assoc_buffers);
-                bh->b_private = NULL;
                 brelse(bh);
         }
         return nmembs;
@@ -360,7 +357,6 @@ static int nilfs_ioctl_move_blocks(struct the_nilfs *nilfs,
  failed:
         list_for_each_entry_safe(bh, n, &buffers, b_assoc_buffers) {
                 list_del_init(&bh->b_assoc_buffers);
-                bh->b_private = NULL;
                 brelse(bh);
         }
         return ret;
@@ -471,7 +467,6 @@ int nilfs_ioctl_prepare_clean_segments(struct the_nilfs *nilfs,
         return 0;
 
  failed:
-        nilfs_remove_all_gcinode(nilfs);
         printk(KERN_ERR "NILFS: GC failed during preparation: %s: err=%d\n",
                msg, ret);
         return ret;
@@ -560,6 +555,8 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
         else
                 ret = nilfs_clean_segments(inode->i_sb, argv, kbufs);
 
+        if (ret < 0)
+                nilfs_remove_all_gcinode(nilfs);
         clear_nilfs_gc_running(nilfs);
 
  out_free: