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SubjectRe: Linux 2.6.15-rc2
Linus Torvalds wrote:

>On Tue, 22 Nov 2005, Andrew Morton wrote:
>
>
>>>Why does it happen at all, though?
>>>
>>>
>>davem recently merged a patch which adds ext3 ioctls to fs/compat_ioctl.c.
>>That required inclusion of ext3 and jbd header files. Those files explode
>>unpleasantly when CONFIG_JBD=n.
>>
>>
>
>Oh. How about just making jbd.h do the rigt thing, and not care about the
>configuration?
>
>If we include jbd.h, we want the jbd data structures. There's never any
>reason to care whether jbd is enabled or not afaik.
>
>Ie maybe just something like this?
>
>(Untested, obviously. I'm just assuming that anything that actually
>_needs_ the jbd functionality should have made sure that jdb is enabled.)
>
>Zan, Jeffrey?
>
> Linus
>---
>diff --git a/include/linux/jbd.h b/include/linux/jbd.h
>index aa56172..dcde7ad 100644
>--- a/include/linux/jbd.h
>+++ b/include/linux/jbd.h
>@@ -16,8 +16,6 @@
> #ifndef _LINUX_JBD_H
> #define _LINUX_JBD_H
>
>-#if defined(CONFIG_JBD) || defined(CONFIG_JBD_MODULE) || !defined(__KERNEL__)
>-
> /* Allow this file to be included directly into e2fsprogs */
> #ifndef __KERNEL__
> #include "jfs_compat.h"
>@@ -1083,19 +1081,4 @@ extern int jbd_blocks_per_page(struct in
>
> #endif /* __KERNEL__ */
>
>-#endif /* CONFIG_JBD || CONFIG_JBD_MODULE || !__KERNEL__ */
>-
>-/*
>- * Compatibility no-ops which allow the kernel to compile without CONFIG_JBD
>- * go here.
>- */
>-
>-#if defined(__KERNEL__) && !(defined(CONFIG_JBD) || defined(CONFIG_JBD_MODULE))
>-
>-#define J_ASSERT(expr) do {} while (0)
>-#define J_ASSERT_BH(bh, expr) do {} while (0)
>-#define buffer_jbd(bh) 0
>-#define journal_buffer_journal_lru(bh) 0
>-
>-#endif /* defined(__KERNEL__) && !defined(CONFIG_JBD) */
> #endif /* _LINUX_JBD_H */
>
>

This one compiles and boots just fine. I was also able to loop mount an
ext2 filesystem.

Thanks for all the effort!

BTW: Since I have your ear, this same version DOES seem to have some
other bug as well. I did a "make distclean" and the "rm -f" of all he
object files hung forever in "D" state. I'm using XFS on IDE disks.
I'm using the same config as was posted before. I didn't get anything
in an log files that would indicate a problem. Has this been reported?
If not, what can I do to make a meaningful report?

--
Jeffrey Hundstad

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