[stgt] [PATCH 1/1] tgtd: Patch to add bsoflags options o tgtd.

[FUJITA Tomonori]

On Tue, 18 May 2010 16:21:00 -0300
Daniel Henrique Debonzi <debonzi at linux.vnet.ibm.com> wrote:

> One idea to solve it and don't make necessary to touch all backing 
> stores to avoid this issue is to create a new template like bs_rdrw_sync 
> O_SYNC and O_DIRECT flags on open, and don't have the options as this 
> patch does. This way I got want I am interested in and don't need to 
> involve all the other stuff. What are your thoughts about it?

Or a new option to touch only bs_rdrw.

However, I want to know why you want to use O_SYNC and O_DIRECT.

- what's the advantage of O_SYNC compared with the current approach
(sync_file after write)? notably faster?

- why do you want to use O_DIRECT with bd_rdrw? bd_aio does aio with
  O_DIRECT? It's not enough for you?

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