6 files changed, 60 insertions, 9 deletions

diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index 08c6dd0c6713..9949bb746a52 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -1502,7 +1502,7 @@ struct inode *gfs2_dir_search(struct inode *dir, const struct qstr *name)
                 inode = gfs2_inode_lookup(dir->i_sb, 
                                 be16_to_cpu(dent->de_type),
                                 be64_to_cpu(dent->de_inum.no_addr),
-                                be64_to_cpu(dent->de_inum.no_formal_ino));
+                                be64_to_cpu(dent->de_inum.no_formal_ino), 0);
                 brelse(bh);
                 return inode;
         }
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 013f00b90cc2..5f6dc32946cd 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -77,6 +77,49 @@ static struct inode *gfs2_iget(struct super_block *sb, u64 no_addr)
         return iget5_locked(sb, hash, iget_test, iget_set, &no_addr);
 }
 
+struct gfs2_skip_data {
+        u64     no_addr;
+        int     skipped;
+};
+
+static int iget_skip_test(struct inode *inode, void *opaque)
+{
+        struct gfs2_inode *ip = GFS2_I(inode);
+        struct gfs2_skip_data *data = opaque;
+
+        if (ip->i_no_addr == data->no_addr && inode->i_private != NULL){
+                if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE)){
+                        data->skipped = 1;
+                        return 0;
+                }
+                return 1;
+        }
+        return 0;
+}
+
+static int iget_skip_set(struct inode *inode, void *opaque)
+{
+        struct gfs2_inode *ip = GFS2_I(inode);
+        struct gfs2_skip_data *data = opaque;
+
+        if (data->skipped)
+                return 1;
+        inode->i_ino = (unsigned long)(data->no_addr);
+        ip->i_no_addr = data->no_addr;
+        return 0;
+}
+
+static struct inode *gfs2_iget_skip(struct super_block *sb,
+                                    u64 no_addr)
+{
+        struct gfs2_skip_data data;
+        unsigned long hash = (unsigned long)no_addr;
+
+        data.no_addr = no_addr;
+        data.skipped = 0;
+        return iget5_locked(sb, hash, iget_skip_test, iget_skip_set, &data);
+}
+
 /**
  * GFS2 lookup code fills in vfs inode contents based on info obtained
  * from directory entry inside gfs2_inode_lookup(). This has caused issues
@@ -112,6 +155,7 @@ void gfs2_set_iop(struct inode *inode)
  * @sb: The super block
  * @no_addr: The inode number
  * @type: The type of the inode
+ * @skip_freeing: set this not return an inode if it is currently being freed.
  *
  * Returns: A VFS inode, or an error
  */
@@ -119,13 +163,19 @@ void gfs2_set_iop(struct inode *inode)
 struct inode *gfs2_inode_lookup(struct super_block *sb, 
                                 unsigned int type,
                                 u64 no_addr,
-                                u64 no_formal_ino)
+                                u64 no_formal_ino, int skip_freeing)
 {
-        struct inode *inode = gfs2_iget(sb, no_addr);
-        struct gfs2_inode *ip = GFS2_I(inode);
+        struct inode *inode;
+        struct gfs2_inode *ip;
         struct gfs2_glock *io_gl;
         int error;
 
+        if (skip_freeing)
+                inode = gfs2_iget_skip(sb, no_addr);
+        else
+                inode = gfs2_iget(sb, no_addr);
+        ip = GFS2_I(inode);
+
         if (!inode)
                 return ERR_PTR(-ENOBUFS);
 
@@ -949,7 +999,7 @@ struct inode *gfs2_createi(struct gfs2_holder *ghs, const struct qstr *name,
 
         inode = gfs2_inode_lookup(dir->i_sb, IF2DT(mode),
                                         inum.no_addr,
-                                        inum.no_formal_ino);
+                                        inum.no_formal_ino, 0);
         if (IS_ERR(inode))
                 goto fail_gunlock2;
 
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 4517ac82c01c..351ac87ab384 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -49,7 +49,8 @@ static inline void gfs2_inum_out(const struct gfs2_inode *ip,
 void gfs2_inode_attr_in(struct gfs2_inode *ip);
 void gfs2_set_iop(struct inode *inode);
 struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned type, 
-                                u64 no_addr, u64 no_formal_ino);
+                                u64 no_addr, u64 no_formal_ino,
+                                int skip_freeing);
 struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
 
 int gfs2_inode_refresh(struct gfs2_inode *ip);
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index b8312edee0e4..e2d1347796a9 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -237,7 +237,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
 
         inode = gfs2_inode_lookup(sb, DT_UNKNOWN,
                                         inum->no_addr,
-                                        0);
+                                        0, 0);
         if (!inode)
                 goto fail;
         if (IS_ERR(inode)) {
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 1ac9afa58c65..17de58e83d92 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -230,7 +230,7 @@ fail:
 static inline struct inode *gfs2_lookup_root(struct super_block *sb,
                                              u64 no_addr)
 {
-        return gfs2_inode_lookup(sb, DT_DIR, no_addr, 0);
+        return gfs2_inode_lookup(sb, DT_DIR, no_addr, 0, 0);
 }
 
 static int init_sb(struct gfs2_sbd *sdp, int silent, int undo)
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 2d7f7ea0c9a8..708c287e1d0e 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -884,7 +884,7 @@ static struct inode *try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked)
                         continue;
                 *last_unlinked = no_addr;
                 inode = gfs2_inode_lookup(rgd->rd_sbd->sd_vfs, DT_UNKNOWN,
-                                          no_addr, -1);
+                                          no_addr, -1, 1);
                 if (!IS_ERR(inode))
                         return inode;
         }