Pankaj Raghav
>From cgroup writeback POV:
Acked-by: Tejun Heo
Thanks.
--
tejun
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Hello,
On Tue, Jul 02, 2024 at 05:27:19PM +0800, yi sun wrote:
> Yes, adding the io priority attribute to work will bring huge benefits in the
> following scenarios:
> The system has huge IO pressure (these IOs may all be low-priority IOs),
> and a work (we hope to complete quickly) is also doing
Hello,
On Mon, Jul 01, 2024 at 03:51:37PM +0800, Yi Sun wrote:
> +/*
> + * If a work may do disk IO, it is recommended to use struct io_work
> + * instead of struct work_struct.
> + */
> +struct io_work {
> + struct work_struct work;
> +
> + /* If the work does submit_bio, io priority may
Hello, again.
On Mon, Dec 04, 2023 at 04:03:47PM +, Naohiro Aota wrote:
...
> In summary, we misuse max_active, considering it is a global limit. And,
> the recent commit introduced a huge performance drop in some cases. We
> need to review alloc_workqueue() usage to check if its max_active s
Hello,
On Mon, Dec 04, 2023 at 04:03:47PM +, Naohiro Aota wrote:
> Recently, commit 636b927eba5b ("workqueue: Make unbound workqueues to use
> per-cpu pool_workqueues") changed WQ_UNBOUND workqueue's behavior. It
> changed the meaning of alloc_workqueue()'s max_active from an upper limit
> imp
the I/O to the owner
> of the pagecache page as it should.
>
> Fix this by always passing the pagecache page to
> wbc_account_cgroup_owner().
>
> Fixes: 578c647879f7 ("f2fs: implement cgroup writeback support")
> Cc: sta...@vger.kernel.org
> Reported-by: Matthew Wil
Hello,
On Tue, Jan 31, 2023 at 10:31:31PM -0800, Eric Biggers wrote:
> > These can usually be handled by explicitly associating the bio's to the
> > desired cgroups using one of bio_associate_blkg*() or
> > bio_clone_blkg_association().
>
> Here that already happens in wbc_init_bio(), called from
Hello,
On Sun, Jan 29, 2023 at 09:26:57PM +, Matthew Wilcox wrote:
> > > diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
> > > index e78be66bbf01..a4e76f96f291 100644
> > > --- a/fs/crypto/crypto.c
> > > +++ b/fs/crypto/crypto.c
> > > @@ -205,6 +205,9 @@ struct page *fscrypt_encrypt_pagec
Hello, Stephen.
On Tue, Apr 03, 2018 at 12:29:19PM +1000, Stephen Rothwell wrote:
> > I am still applying this to the merge of the btrfs tree every day ...
> >
> > Commit
> > 578c647879f7 ("f2fs: implement cgroup writeback support")
> > was merged into Linus' tree on Jan 31.
> >
> > Here is th
