From: Christoph Hellwig <hch@infradead.org>
To: Namjae Jeon <namjae.jeon@samsung.com>
Cc: 'Luk?? Czerner' <lczerner@redhat.com>,
'OGAWA Hirofumi' <hirofumi@mail.parknet.co.jp>,
'Andrew Morton' <akpm@linux-foundation.org>,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v8 1/4] fat: add fat_fallocate operation
Date: Wed, 10 Dec 2014 02:45:24 -0800 [thread overview]
Message-ID: <20141210104524.GA865@infradead.org> (raw)
In-Reply-To: <003d01d01465$f719f3f0$e54ddbd0$@samsung.com>
On Wed, Dec 10, 2014 at 07:42:16PM +0900, Namjae Jeon wrote:
> User have to call fallocate again if opening file after close().
> And fallocate() will skip allocation if fallocated blocks is avaiable.
> Instead, It gurrantee to be available fallocated blocks between open
> and close(). And I updated such limitation of fat fallocate in
> Documentation.
Documentation doesn't help, this breaks application exposed semantics.
If you think there is a use case for non-persistant preallocations
please propose a new fallocate flag for it, or given the lack of use
case probably just add a fat specific ioctl instead.
next prev parent reply other threads:[~2014-12-10 10:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-09 7:17 [PATCH v8 1/4] fat: add fat_fallocate operation Namjae Jeon
2014-12-09 14:21 ` Lukáš Czerner
2014-12-10 10:42 ` Namjae Jeon
2014-12-10 10:45 ` Christoph Hellwig [this message]
2014-12-10 12:10 ` Namjae Jeon
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