Re: [PATCH] block: avoild hang when bio_list is non-NULL in submit_bio_wait()

[Gao Xiang]

On 2026/3/3 10:03, Jiucheng Xu wrote:
>

...

> > > that need to use GFP_NOIO.
> >
> > Yes, it should make vm_map_ram() in the end_io path use
> > GFP_NOIO instead.
> >
> > Jiucheng, could you add memalloc_noio_{save,restore}() to
> > wrap up this path?
>
> Thanks for Christoph's and Xiang's comments, I will try it. Thanks!

Just one more note: just wrap up z_erofs_decompressqueue_work() in
z_erofs_decompress_kickoff() with memalloc_noio_{save,restore}() is
enough.

 ...
 memalloc_noio_save()
 z_erofs_decompressqueue_work()
 memalloc_noio_restore()

> Best Regards,
> Jiucheng