Re: [PATCH 07/12] NFS: Don't enable deep stack recursion when doing memory reclaim

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Subject: Re: [PATCH 07/12] NFS: Don't enable deep stack recursion when doing memory reclaim
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 15 Jun 2016 00:09:50 -0700
Cc: linux-nfs@xxxxxxxxxxxxxxx
In-reply-to: <1465931115-30784-7-git-send-email-trond.myklebust@primarydata.com>
References: <1465931115-30784-1-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-2-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-3-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-4-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-5-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-6-git-send-email-trond.myklebust@primarydata.com> <1465931115-30784-7-git-send-email-trond.myklebust@primarydata.com>
User-agent: Mutt/1.5.24 (2015-08-30)

Aka don't do a COMMIT in ->releasepage?  This could use a few more
comments explaining why this change is done.  At least for XFS we
have stopped initiating writeback-like behavior in ->releasepage
long ago.
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References:
- [PATCH 01/12] NFS: Don't flush caches for a getattr that races with writeback
  - From: Trond Myklebust
- [PATCH 02/12] NFS: Cache access checks more aggressively
  - From: Trond Myklebust
- [PATCH 03/12] NFS: Cache aggressively when file is open for writing
  - From: Trond Myklebust
- [PATCH 04/12] NFS: Kill NFS_INO_NFS_INO_FLUSHING: it is a performance killer
  - From: Trond Myklebust
- [PATCH 05/12] NFS: writepage of a single page should not be synchronous
  - From: Trond Myklebust
- [PATCH 06/12] NFS: Don't hold the inode lock across fsync()
  - From: Trond Myklebust
- [PATCH 07/12] NFS: Don't enable deep stack recursion when doing memory reclaim
  - From: Trond Myklebust

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