Re: [fuse-devel] When does fuse FORGET?

[Miklos S. <mi...@sz...>]

> > > the mount line from 'strace mount -ni -o remount /mnt'
> > >
> > > mount("glusterfs", "/mnt", "fuse",
> > MS_NOSUID|MS_NODEV|MS_REMOUNT|0xc0ed0000,
> > > 0x805c990) = 0
> > >
> > > does MS_NODEV cause VFS not to shrink the dcache?
> >
> > No, it shrinks the dcache unconditionally.  What I haven't realized,
> > that it doesn't shrink the icache as well, which is the couse of the
> > problem I think.
> 
> 
> 
> Do you mean upgrading to 2.6.22 should make it work?

I think so.

> Or should it work with 2.6.18 itself?

I only tested with 2.6.22, and it works.  And if my theory is correct
it should not work with 2.6.18.  But I may be wrong.

Also the change is very simple.  If you don't want to upgrade, then
you can just apply this patch, which should fix the issue.

Miklos

Index: linux/fs/fuse/inode.c
===================================================================
--- linux.orig/fs/fuse/inode.c	2007-05-18 11:32:21.000000000 +0200
+++ linux/fs/fuse/inode.c	2007-05-18 11:47:36.000000000 +0200
@@ -470,6 +470,7 @@ static const struct super_operations fus
 	.destroy_inode  = fuse_destroy_inode,
 	.read_inode	= fuse_read_inode,
 	.clear_inode	= fuse_clear_inode,
+	.drop_inode	= generic_delete_inode,
 	.remount_fs	= fuse_remount_fs,
 	.put_super	= fuse_put_super,
 	.umount_begin	= fuse_umount_begin,