Messages in this thread |  | | Date | Sat, 30 Dec 2000 15:06:54 -0500 (EST) | From | Alexander Viro <> | Subject | Re: [RFC] Generic deferred file writing |
| |
On Sat, 30 Dec 2000, Daniel Phillips wrote:
> When I saw you put in the if (PageDirty) -->writepage and related code > over the last couple of weeks I was wondering if you realize how close > we are to having generic deferred file writing in the VFS. I took some > time today to code this little hack and it comes awfully close to doing > the job. However, *** Warning, do not run this on a machine you care > about, it will mess it up ***. > > The advantages of deferred file writing are pretty obvious. Right now > we are deferring just the writeout of data to the disk, but we can also > defer the disk mapping, so that metadata blocks don't have to stay > around in cache waiting for data blocks to get mapped into them one at > a time - a whole group can be done in one flush.
Except that we've got file-expanding writes outside of ->i_sem. Thanks, but no thanks.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
|  |