1 files changed, 44 insertions, 19 deletions

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index ed9ba6fe04f5..9978803ceedc 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -145,31 +145,32 @@ int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
                 return 0;
 }
 
-void jfs_delete_inode(struct inode *inode)
+void jfs_evict_inode(struct inode *inode)
 {
-        jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
+        jfs_info("In jfs_evict_inode, inode = 0x%p", inode);
 
-        if (!is_bad_inode(inode))
+        if (!inode->i_nlink && !is_bad_inode(inode)) {
                 dquot_initialize(inode);
 
-        if (!is_bad_inode(inode) &&
-            (JFS_IP(inode)->fileset == FILESYSTEM_I)) {
-                truncate_inode_pages(&inode->i_data, 0);
+                if (JFS_IP(inode)->fileset == FILESYSTEM_I) {
+                        truncate_inode_pages(&inode->i_data, 0);
 
-                if (test_cflag(COMMIT_Freewmap, inode))
-                        jfs_free_zero_link(inode);
+                        if (test_cflag(COMMIT_Freewmap, inode))
+                                jfs_free_zero_link(inode);
 
-                diFree(inode);
+                        diFree(inode);
 
-                /*
-                 * Free the inode from the quota allocation.
-                 */
-                dquot_initialize(inode);
-                dquot_free_inode(inode);
-                dquot_drop(inode);
+                        /*
+                         * Free the inode from the quota allocation.
+                         */
+                        dquot_initialize(inode);
+                        dquot_free_inode(inode);
+                }
+        } else {
+                truncate_inode_pages(&inode->i_data, 0);
         }
-
-        clear_inode(inode);
+        end_writeback(inode);
+        dquot_drop(inode);
 }
 
 void jfs_dirty_inode(struct inode *inode)
@@ -303,8 +304,17 @@ static int jfs_write_begin(struct file *file, struct address_space *mapping,
                                 loff_t pos, unsigned len, unsigned flags,
                                 struct page **pagep, void **fsdata)
 {
-        return nobh_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
+        int ret;
+
+        ret = nobh_write_begin(mapping, pos, len, flags, pagep, fsdata,
                                 jfs_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 jfs_bmap(struct address_space *mapping, sector_t block)
@@ -317,9 +327,24 @@ static ssize_t jfs_direct_IO(int rw, struct kiocb *iocb,
 {
         struct file *file = iocb->ki_filp;
         struct inode *inode = file->f_mapping->host;
+        ssize_t ret;
 
-        return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
+        ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
                                 offset, nr_segs, jfs_get_block, NULL);
+
+        /*
+         * In case of error extending write may have instantiated a few
+         * blocks outside i_size. Trim these off again.
+         */
+        if (unlikely((rw & WRITE) && ret < 0)) {
+                loff_t isize = i_size_read(inode);
+                loff_t end = offset + iov_length(iov, nr_segs);
+
+                if (end > isize)
+                        vmtruncate(inode, isize);
+        }
+
+        return ret;
 }
 
 const struct address_space_operations jfs_aops = {