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-rw-r--r--fs/ocfs2/file.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index bd94d26b0b21..0f14f906dc65 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2630,7 +2630,16 @@ static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int whence)
case SEEK_SET:
break;
case SEEK_END:
- offset += inode->i_size;
+ /* SEEK_END requires the OCFS2 inode lock for the file
+ * because it references the file's size.
+ */
+ ret = ocfs2_inode_lock(inode, NULL, 0);
+ if (ret < 0) {
+ mlog_errno(ret);
+ goto out;
+ }
+ offset += i_size_read(inode);
+ ocfs2_inode_unlock(inode, 0);
break;
case SEEK_CUR:
if (offset == 0) {