Re: [PATCH 10/17] jbd2: replace __get_free_pages() with kmalloc()

Matthew Wilcox <[email protected]> Fri, 5 Jun 2026 21:54:23 +0100
Newsgroups org.kernel.vger.linux-nilfs,dev.linux.lists.ocfs2-devel,org.kernel.vger.linux-ext4,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-nfs,org.kvack.linux-mm
Message-ID <[email protected]>
On Fri, Jun 05, 2026 at 09:33:32AM +0100, David Laight wrote:
> On Thu, 4 Jun 2026 10:05:52 -0400
> "Theodore Tso" <[email protected]> wrote:
> 
> ...
> > I suppose we could do it with kmalloc() with some flags which to
> > prevent forced reclaim / compaction, and if that fails, then fall back
> > to vmalloc().  Is there a better way?
> 
> There is already kvalloc().
> I'm not sure how hard that tries to get kmalloc() to succeed.

Please don't try to help.