squashfs - a compressed fs for Linux

This is fixed in Squashfs CVS (devel-3_4 branch). Devel-3_4 is currently
targeted at linux-next, but there are patches for linux-2.6.27-rc3 and
older kernels. See the README file in cvsroot/squashfs/kernel.

Squashfs CVS normally has fixes for the latest mainline kernel on
kernel.org, plus bug fixes and other improvements, and so it's always worth
looking there for problems like this. The 3.4 kernel code has a re-written
cache which gives up to 20% speed improvement.

Make sure you use the devel-3_4 branch, currently CVS HEAD is targetted at
Squashfs 4.0 which isn't compatible with 3.3 filesystems, and it is still
in development anyway.

There is going to be another release of Squashfs soon because too many
people are finding Squashfs 3.3 lacks any patches for the latest kernels
:)

Phillip

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Zoltan, thanks again!

My mistake: I was using the -next tree :P
I just switch to vanilla and d_alloc_anon already is there.

About the Oops: I tested here and your patch works fine ;-)
You should mark this bug as "fixed" or just close as "solved".

Kind Regards,
Carlos.

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Well, d_alloc_anon is in vanilla 2.6.27-rc3, even in the current git
tree.

I don't know when the referenced patch will be merged into mainline, but
the fix for it should also be trivial if you look at:
http://kerneltrap.org/mailarchive/linux-fsdevel/2008/8/11/2892234

BR,
Zoltan

Hi Zoltan, thanks for your interest =)

It seems that d_alloc_anon was removed recently (see this mail):
http://kerneltrap.org/mailarchive/linux-fsdevel/2008/8/11/2892244

By the header comment "d_alloc_anon" and "d_alloc_root" are similar... did
you know if it's true?

Thanks!

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I've got to compile it under 2.6.27-rc3, but causes an oops when trying to
use it.

For the first error: There must be something weird with your kernel
sources, d_alloc_anon is still there
in fs/dcache.c and the declaration is also included via linux/fs.h.

The second warning is caused by changeset
51cc50685a4275c6a02653670af9f108a64e01cf and probably causes
the oops (didn't test it yet). It can be easily fixed by:
--- squashfs3.3.patch
+++ squashfs3.3.patch
@@ -2235,7 +2235,7 @@
+}
+
+
-+static void init_once(struct kmem_cache *cachep, void *foo)
++static void init_once(void *foo)



Zoltan