Re: [PATCH V3 1/3] block: Allow mapping of vmalloc-ed buffers

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To: Damien Le Moal <damien.lemoal@xxxxxxx>
Subject: Re: [PATCH V3 1/3] block: Allow mapping of vmalloc-ed buffers
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 26 Jun 2019 15:17:33 +0200
Cc: linux-scsi@xxxxxxxxxxxxxxx, "Martin K . Petersen" <martin.petersen@xxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, Jens Axboe <axboe@xxxxxxxxx>, Christoph Hellwig <hch@xxxxxx>, Bart Van Assche <bvanassche@xxxxxxx>
In-reply-to: <20190626065438.19307-2-damien.lemoal@wdc.com>
User-agent: Mutt/1.5.17 (2007-11-01)

This is still missing the proper vmalloc flushing and invalidation.

We can't leave that to the callers as is very subtle and trivial
to get wrong, as shown by your couple of previous attempts.

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References:
- [PATCH V3 0/3] Fix zone revalidation memory allocation failures
  - From: Damien Le Moal
- [PATCH V3 1/3] block: Allow mapping of vmalloc-ed buffers
  - From: Damien Le Moal

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