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Re: [PATCH 1/3] block: invalidate the page cache when issuing BLKZEROOUT

from [Martin K. Petersen] [Permanent Link][Original]
To: "Darrick J. Wong" <darrick.wong@xxxxxxxxxx>
Subject: Re: [PATCH 1/3] block: invalidate the page cache when issuing BLKZEROOUT.
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Wed, 29 Jun 2016 00:57:27 -0400
Cc: axboe@xxxxxxxxx, hch@xxxxxxxxxxxxx, tytso@xxxxxxx, martin.petersen@xxxxxxxxxx, snitzer@xxxxxxxxxx, linux-api@xxxxxxxxxxxxxxx, bfoster@xxxxxxxxxx, xfs@xxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, Christoph Hellwig <hch@xxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <146612625412.12764.6647932282740152837.stgit@xxxxxxxxxxxxxxxx> (Darrick J. Wong's message of "Thu, 16 Jun 2016 18:17:34 -0700")
Organization: Oracle Corporation
References: <146612624734.12764.4316680863289411106.stgit@xxxxxxxxxxxxxxxx> <146612625412.12764.6647932282740152837.stgit@xxxxxxxxxxxxxxxx>
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) 
>>>>> "Darrick" == Darrick J Wong <darrick.wong@xxxxxxxxxx> writes:

Darrick> Invalidate the page cache (as a regular O_DIRECT write would
Darrick> do) to avoid returning stale cache contents at a later time.

Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>

-- 
Martin K. Petersen      Oracle Linux Engineering
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