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From: Andrew Morton <akpm@osdl.org>
To: Nikita Danilov <Nikita@Namesys.COM>
Cc: linux-kernel@vger.kernel.org,
	viro@parcelfarce.linux.theplanet.co.uk, trondmy@trondhjem.org,
	neilb@cse.unsw.edu.au
Subject: Re: d_splice_alias() problem.
Date: Fri, 23 Apr 2004 16:49:36 -0700	[thread overview]
Message-ID: <20040423164936.390462fb.akpm@osdl.org> (raw)
In-Reply-To: <16521.5104.489490.617269@laputa.namesys.com>

Nikita Danilov <Nikita@Namesys.COM> 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().


  parent reply	other threads:[~2004-04-23 23:49 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-04-23 13:02 Nikita Danilov
2004-04-23 15:40 ` Andreas Dilger
2004-04-23 16:20   ` Nikita Danilov
2004-04-23 23:49 ` Andrew Morton [this message]
2004-04-26 12:45   ` Nikita Danilov
2004-04-30  4:54 ` Neil Brown
2004-04-30  7:50   ` Greg Banks
2004-04-30 13:28   ` Nikita Danilov
2004-05-03 23:46     ` Neil Brown
2004-05-03 12:02   ` Greg Banks
2004-05-03 23:28     ` Neil Brown
2004-05-04  0:05       ` Greg Banks
2004-05-04  7:00       ` Greg Banks
2004-05-04  9:46         ` viro
2004-05-04 10:21           ` Greg Banks
2004-05-05  0:11           ` Neil Brown
2004-05-10  3:03         ` Neil Brown
2004-05-10  4:50           ` Greg Banks
2004-05-10  3:27       ` Neil Brown
2004-05-10 11:28         ` Greg Banks
2004-05-13  5:58           ` Neil Brown
2004-05-13  7:15             ` Greg Banks

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