From: Theodore Tso <tytso@mit.edu>
To: Ric Wheeler <rwheeler@redhat.com>
Cc: Alex Tomas <bzzz@sun.com>, Andreas Dilger <adilger@sun.com>,
linux-ext4@vger.kernel.org
Subject: Re: Potential bug in mballoc --- reusing data blocks before txn commit
Date: Mon, 29 Sep 2008 19:00:31 -0400 [thread overview]
Message-ID: <20080929230031.GK10831@mit.edu> (raw)
In-Reply-To: <48E142C4.7090809@redhat.com>
On Mon, Sep 29, 2008 at 05:04:04PM -0400, Ric Wheeler wrote:
>
> I don't disagree with any of the above, just want to point out that TRIM
> has a SCSI T10 cousin that is very similar (used to implement thinly
> provisioned luns). We should make sure as much as possible to make our
> file system level support work for both...
>
That's shouldn't be a problem. David Woodhouse created a standard
block device interface that should be suitable both for ATA and SCSI:
int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
unsigned nr_sects, bio_end_io_t end_io);
- Ted
next prev parent reply other threads:[~2008-09-29 23:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-28 1:35 Potential bug in mballoc --- reusing data blocks before txn commit Theodore Ts'o
2008-09-29 20:21 ` Alex Tomas
2008-09-29 20:57 ` Theodore Tso
2008-09-29 21:04 ` Ric Wheeler
2008-09-29 23:00 ` Theodore Tso [this message]
2008-09-29 23:05 ` Ric Wheeler
2008-09-30 4:35 ` Alex Tomas
2008-09-30 13:02 ` Theodore Tso
2008-09-30 13:12 ` Alex Tomas
2008-09-30 14:15 ` Theodore Tso
2008-10-01 7:17 ` Andreas Dilger
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