On Thu, Jun 20, 2019 at 3:25 PM Theodore Ts'o <tytso@xxxxxxx> wrote: > On Thu, Jun 20, 2019 at 09:18:38AM -0600, Ross Zwisler wrote: > > diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h > > index 5c04181b7c6d8..0e0393e7f41a4 100644 > > --- a/include/linux/jbd2.h > > +++ b/include/linux/jbd2.h > > @@ -1397,6 +1413,12 @@ extern int jbd2_journal_force_commit(journal_t *); > > extern int jbd2_journal_force_commit_nested(journal_t *); > > extern int jbd2_journal_inode_add_write(handle_t *handle, struct jbd2_inode *inode); > > extern int jbd2_journal_inode_add_wait(handle_t *handle, struct jbd2_inode *inode); > > +extern int jbd2_journal_inode_ranged_write(handle_t *handle, > > + struct jbd2_inode *inode, loff_t start_byte, > > + loff_t length); > > +extern int jbd2_journal_inode_ranged_wait(handle_t *handle, > > + struct jbd2_inode *inode, loff_t start_byte, > > + loff_t length); > > extern int jbd2_journal_begin_ordered_truncate(journal_t *journal, > > struct jbd2_inode *inode, loff_t new_size); > > extern void jbd2_journal_init_jbd_inode(struct jbd2_inode *jinode, struct inode *inode); > > You're adding two new functions that are called from outside the jbd2 > subsystem. To support compiling jbd2 as a module, we also need to add > EXPORT_SYMBOL declarations for these two functions. > > I'll take care of this when applying this change. Ah, yep, great catch. Thanks!