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-rw-r--r--fs/ext3/fsync.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
index 09b13bb..0bcf63a 100644
--- a/fs/ext3/fsync.c
+++ b/fs/ext3/fsync.c
@@ -43,7 +43,7 @@
* inode to disk.
*/
-int ext3_sync_file(struct file *file, int datasync)
+int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
{
struct inode *inode = file->f_mapping->host;
struct ext3_inode_info *ei = EXT3_I(inode);
@@ -54,6 +54,17 @@ int ext3_sync_file(struct file *file, int datasync)
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
+ ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (ret)
+ return ret;
+
+ /*
+ * Taking the mutex here just to keep consistent with how fsync was
+ * called previously, however it looks like we don't need to take
+ * i_mutex at all.
+ */
+ mutex_lock(&inode->i_mutex);
+
J_ASSERT(ext3_journal_current_handle() == NULL);
/*
@@ -70,8 +81,10 @@ int ext3_sync_file(struct file *file, int datasync)
* (they were dirtied by commit). But that's OK - the blocks are
* safe in-journal, which is all fsync() needs to ensure.
*/
- if (ext3_should_journal_data(inode))
+ if (ext3_should_journal_data(inode)) {
+ mutex_unlock(&inode->i_mutex);
return ext3_force_commit(inode->i_sb);
+ }
if (datasync)
commit_tid = atomic_read(&ei->i_datasync_tid);
@@ -91,5 +104,6 @@ int ext3_sync_file(struct file *file, int datasync)
*/
if (needs_barrier)
blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+ mutex_unlock(&inode->i_mutex);
return ret;
}
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