"Edward \"Koko\" Konetzko" <konetzed@xxxxxxxxxxxxxxxxx> wrote:
> No problem, I was just looking for an update. Let me know if there is anymore
> debugging input I can give you.
One thing you could try: Find cachefiles_attr_changed() in
fs/cachefiles/interface.c. See this line near the top:
_enter("{OBJ%x},[%llu]",
_object->debug_id, (unsigned long long) ni_size);
Can you change the _enter() to kenter() and don't turn on general debugging?
I'm curious to know where the shrinkage:
> [kslowd] ==> cachefiles_attr_changed({OBJ5},[1620])
> [kslowd] - change i_size 1000 -> 654
occurs (I don't see anywhere that's rounding stuff up). Matching the object
that's shrunk may tell me something. It may be better, though, to alter
nfs_fscache_inode_get_attr() by adding a line at the end:
printk("NFS GET_ATTR i=%lx sz=%llu\n", nfsi->vfs_inode.i_ino, *size);
You could also try changing:
- *size = nfsi->vfs_inode.i_size;
+ *size = i_size_read(&nfsi->vfs_inode);
in that function, though I don't see why that should make a difference if the
size on the server doesn't change.
David
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