Re: ext2 + -osync: not as easy as it seems

From: Jens Axboe
Date: Tue Jan 13 2009 - 09:08:43 EST


On Tue, Jan 13 2009, Theodore Tso wrote:
> Adding a barrier shouldn't be that hard; just a matter adding a call
> to blkdev_issue_flush() to ext2_sync_file() before it returns.
>
> BTW, I think there's a stale documentation bug in in
> block/blk-barrier.c, around line 305:
>
> * Description:
> * Issue a flush for the block device in question. Caller can supply
> * room for storing the error offset in case of a flush error, if they
> - * wish to. Caller must run wait_for_completion() on its own.
> + * wish to.
> */
> int blkdev_issue_flush(struct block_device *bdev, sector_t *error_sector)
> {
>
> Jens, is that right?

Yep, that is indeed stale!

--
Jens Axboe

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