5 files changed, 53 insertions, 38 deletions

diff --git a/fs/udf/file.c b/fs/udf/file.c
index 6e450e01a1bb..66b9e7e7e4c5 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -227,6 +227,28 @@ const struct file_operations udf_file_operations = {
         .llseek                 = generic_file_llseek,
 };
 
+static int udf_setattr(struct dentry *dentry, struct iattr *attr)
+{
+        struct inode *inode = dentry->d_inode;
+        int error;
+
+        error = inode_change_ok(inode, attr);
+        if (error)
+                return error;
+
+        if ((attr->ia_valid & ATTR_SIZE) &&
+            attr->ia_size != i_size_read(inode)) {
+                error = vmtruncate(inode, attr->ia_size);
+                if (error)
+                        return error;
+        }
+
+        setattr_copy(inode, attr);
+        mark_inode_dirty(inode);
+        return 0;
+}
+
 const struct inode_operations udf_file_inode_operations = {
+        .setattr                = udf_setattr,
         .truncate               = udf_truncate,
 };
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index 18cd7111185d..75d9304d0dc3 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -31,8 +31,6 @@ void udf_free_inode(struct inode *inode)
         struct super_block *sb = inode->i_sb;
         struct udf_sb_info *sbi = UDF_SB(sb);
 
-        clear_inode(inode);
-
         mutex_lock(&sbi->s_alloc_mutex);
         if (sbi->s_lvid_bh) {
                 struct logicalVolIntegrityDescImpUse *lvidiu =
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 124852bcf6fe..fc48f37aa2dd 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -68,37 +68,23 @@ static void udf_update_extents(struct inode *,
 static int udf_get_block(struct inode *, sector_t, struct buffer_head *, int);
 
 
-void udf_delete_inode(struct inode *inode)
-{
-        truncate_inode_pages(&inode->i_data, 0);
-
-        if (is_bad_inode(inode))
-                goto no_delete;
-
-        inode->i_size = 0;
-        udf_truncate(inode);
-        lock_kernel();
-
-        udf_update_inode(inode, IS_SYNC(inode));
-        udf_free_inode(inode);
-
-        unlock_kernel();
-        return;
-
-no_delete:
-        clear_inode(inode);
-}
-
-/*
- * If we are going to release inode from memory, we truncate last inode extent
- * to proper length. We could use drop_inode() but it's called under inode_lock
- * and thus we cannot mark inode dirty there.  We use clear_inode() but we have
- * to make sure to write inode as it's not written automatically.
- */
-void udf_clear_inode(struct inode *inode)
+void udf_evict_inode(struct inode *inode)
 {
         struct udf_inode_info *iinfo = UDF_I(inode);
+        int want_delete = 0;
+
+        truncate_inode_pages(&inode->i_data, 0);
 
+        if (!inode->i_nlink && !is_bad_inode(inode)) {
+                want_delete = 1;
+                inode->i_size = 0;
+                udf_truncate(inode);
+                lock_kernel();
+                udf_update_inode(inode, IS_SYNC(inode));
+                unlock_kernel();
+        }
+        invalidate_inode_buffers(inode);
+        end_writeback(inode);
         if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB &&
             inode->i_size != iinfo->i_lenExtents) {
                 printk(KERN_WARNING "UDF-fs (%s): Inode %lu (mode %o) has "
@@ -108,9 +94,13 @@ void udf_clear_inode(struct inode *inode)
                         (unsigned long long)inode->i_size,
                         (unsigned long long)iinfo->i_lenExtents);
         }
-
         kfree(iinfo->i_ext.i_data);
         iinfo->i_ext.i_data = NULL;
+        if (want_delete) {
+                lock_kernel();
+                udf_free_inode(inode);
+                unlock_kernel();
+        }
 }
 
 static int udf_writepage(struct page *page, struct writeback_control *wbc)
@@ -127,9 +117,16 @@ static int udf_write_begin(struct file *file, struct address_space *mapping,
                         loff_t pos, unsigned len, unsigned flags,
                         struct page **pagep, void **fsdata)
 {
-        *pagep = NULL;
-        return block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
-                                udf_get_block);
+        int ret;
+
+        ret = block_write_begin(mapping, pos, len, flags, pagep, udf_get_block);
+        if (unlikely(ret)) {
+                loff_t isize = mapping->host->i_size;
+                if (pos + len > isize)
+                        vmtruncate(mapping->host, isize);
+        }
+
+        return ret;
 }
 
 static sector_t udf_bmap(struct address_space *mapping, sector_t block)
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 12bb651e5400..65412d84a45d 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -175,8 +175,7 @@ static const struct super_operations udf_sb_ops = {
         .alloc_inode    = udf_alloc_inode,
         .destroy_inode  = udf_destroy_inode,
         .write_inode    = udf_write_inode,
-        .delete_inode   = udf_delete_inode,
-        .clear_inode    = udf_clear_inode,
+        .evict_inode    = udf_evict_inode,
         .put_super      = udf_put_super,
         .sync_fs        = udf_sync_fs,
         .statfs         = udf_statfs,
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 2bac0354891f..6995ab1f4305 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -139,8 +139,7 @@ extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
 extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
 extern void udf_truncate(struct inode *);
 extern void udf_read_inode(struct inode *);
-extern void udf_delete_inode(struct inode *);
-extern void udf_clear_inode(struct inode *);
+extern void udf_evict_inode(struct inode *);
 extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
 extern long udf_block_map(struct inode *, sector_t);
 extern int udf_extend_file(struct inode *, struct extent_position *,