March 28, 2014
6:01 p.m.
On Fri, Mar 28, 2014 at 11:16:30PM +0530, Rishi Agrawal wrote:
Hi All,
I want to wait in my code till the IO actually goes to the disk.
That's an issue, as you really don't know what a "disk" is from within the kernel :) Back up, what exactly are you trying to do?
For example
struct buffer_head *bh=sb_bread(sb, 20)
strcpy(bh->b_data, "Some Data");
/* mark and sync */ mark_buffer_dirty(bh); sync_dirty_buffer(bh);
The above code only adds the bh to the request queue and returns.
And that's all you should need. Why do you feel you need more? thanks, greg k-h