Re: [PATCH 1/3] block: try one write zeroes request before going further

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To: Tom Yan <tom.ty89@xxxxxxxxx>
Subject: Re: [PATCH 1/3] block: try one write zeroes request before going further
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Wed, 9 Dec 2020 17:51:21 +0000
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, linux-block@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx
In-reply-to: <CAGnHSEmzrJxm2RVHqP9qGfT0-5N2Zi8wdhvDz_zy-d7W0g7caQ@mail.gmail.com>
References: <20201206055332.3144-1-tom.ty89@gmail.com> <20201207133658.GC28592@infradead.org> <CAGnHSEmzrJxm2RVHqP9qGfT0-5N2Zi8wdhvDz_zy-d7W0g7caQ@mail.gmail.com>

On Tue, Dec 08, 2020 at 08:48:15PM +0800, Tom Yan wrote:
> You mean like submit_bio_wait() is a blocking operation?

Yes, it blocks to wait for the I/O to complete.

References:
- [PATCH 1/3] block: try one write zeroes request before going further
  - From: Tom Yan
- Re: [PATCH 1/3] block: try one write zeroes request before going further
  - From: Christoph Hellwig
- Re: [PATCH 1/3] block: try one write zeroes request before going further
  - From: Tom Yan

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