Re: linux-next: manual merge of the block tree with the mm tree

Stephen Rothwell
2024-03-11T21:54:34Z

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Hi all,

On Wed, 14 Feb 2024 11:25:19 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Today's linux-next merge of the block tree got a conflict in:
>
> include/linux/sched.h
>
> between commit:
>
> d9233ee073c9 ("mm: document memalloc_noreclaim_save() and memalloc_pin_save()")
>
> from the mm-unstable branch of the mm tree and commit:
>
> 06b23f92af87 ("block: update cached timestamp post schedule/preemption")
>
> from the block tree.
>
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging. You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
>
> --
> Cheers,
> Stephen Rothwell
>
> diff --cc include/linux/sched.h
> index 5b27a548d863,15b7cb478d16..000000000000
> --- a/include/linux/sched.h
> +++ b/include/linux/sched.h
> @@@ -1642,9 -1641,8 +1642,9 @@@ extern struct pid *cad_pid
> #define PF__HOLE__02000000 0x02000000
> #define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_mask */
> #define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */
> -#define PF_MEMALLOC_PIN 0x10000000 /* Allocation context constrained to zones which allow long term pinning. */
> +#define PF_MEMALLOC_PIN 0x10000000 /* Allocations constrained to zones which allow long term pinning.
> + * See memalloc_pin_save() */
> - #define PF__HOLE__20000000 0x20000000
> + #define PF_BLOCK_TS 0x20000000 /* plug has ts that needs updating */
> #define PF__HOLE__40000000 0x40000000
> #define PF_SUSPEND_TASK 0x80000000 /* This thread called freeze_processes() and should not be frozen */
>

This is now a conflict between the mm-stable tree and Linus' tree.

--
Cheers,
Stephen Rothwell

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