On Apr 5, 2005 6:11 PM, nitin ahuja <nitin2ahuja@xxxxxxxxxxxxx> wrote:
> Hi,
>
> >
> >> To commit a buffer's data to disk try this:
> >>
> >> void commit_to_disk (struct buffer_head * bh)
> >> {
> >> mark_buffer_dirty(bh);
> >> sync_dirty_buffer(bh);
> >> }
> >>
>
> > I am using 2.4.29 atm, and I am wondering if
> > "sync_dirty_buffer" is the
> > equivalent of "fs/buffer.c:int sync_buffers(kdev_t
> > dev, int wait)"
> >
>
> Then just say mark_buffer_dirty(bh).
> "sync_dirty_buffer()" is to sync dirty buffer to disk instantly, which otherwise, would be done by bdflush deamon at regular intervels.
sync_dirty_buffer works great on non-journaling/non-data logging fs.
b_data indeed pointing to the data of the files in there. Thanks for
the pointer.
I tried to recode it to view file data in terms of pages (which in
turn, points to a collection of blocks) in page cache, instead of
blocks in buffer cache, but i can't seem to work it out yet.
Kathy
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