* erofs: add GFP_NOIO in the bio completion if needed
@ 2026-03-30 3:08 Jiucheng Xu
2026-03-30 5:44 ` Greg KH
0 siblings, 1 reply; 2+ messages in thread
From: Jiucheng Xu @ 2026-03-30 3:08 UTC (permalink / raw)
To: stable; +Cc: tuan.zhang, jianxin.pan
Dear 5.15.y and 6.12.y maintainers,
An erofs patch should be backported from upstream mainline to the stable
5.15.y and 6.12.y branch. The patch's information is shown as below:
[Subject]
erofs: add GFP_NOIO in the bio completion if needed
[Upstream commit ID]
c23df30915f83e7257c8625b690a1cece94142a0
[Kernel version]
5.15.y
6.12.y
[Why]
Due to insufficient memory, vm_map_ram() may generate memory
swapping I/O, which can cause submit_bio_wait to deadlock
in some scenarios.
Thanks,
Jiucheng Xu
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: erofs: add GFP_NOIO in the bio completion if needed
2026-03-30 3:08 erofs: add GFP_NOIO in the bio completion if needed Jiucheng Xu
@ 2026-03-30 5:44 ` Greg KH
0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2026-03-30 5:44 UTC (permalink / raw)
To: Jiucheng Xu; +Cc: stable, tuan.zhang, jianxin.pan
On Mon, Mar 30, 2026 at 11:08:32AM +0800, Jiucheng Xu wrote:
> Dear 5.15.y and 6.12.y maintainers,
>
> An erofs patch should be backported from upstream mainline to the stable
> 5.15.y and 6.12.y branch. The patch's information is shown as below:
>
> [Subject]
> erofs: add GFP_NOIO in the bio completion if needed
>
> [Upstream commit ID]
> c23df30915f83e7257c8625b690a1cece94142a0
>
> [Kernel version]
> 5.15.y
> 6.12.y
Why not earlier versions, and also the versions in between those
releases? I've done so now :)
thanks,
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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