Re: d_splice_alias() problem.

From: Andrew Morton
Date: Fri Apr 23 2004 - 18:51:30 EST

Nikita Danilov <Nikita@xxxxxxxxxxx> wrote:
> for some time I am observing that during stress tests over NFS
> shrink_slab->...->prune_dcache()->prune_one_dentry()->...->iput()
> is called on inode with ->i_nlink == 0 which results in truncate and
> file deletion. This is wrong in general (file system is re-entered), and
> deadlock prone on some file systems.

The filesystem is only reentered if the caller of __alloc_pages() passed in
__GFP_FS, in which case the bug is in the caller, not in shrink_slab().

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