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Message-ID: <ZXHzooF07LfQQYiE@google.com>
Date:   Thu, 7 Dec 2023 16:32:34 +0000
From:   Carlos Llamas <cmllamas@...gle.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Greg KH <greg@...ah.com>, Arnd Bergmann <arnd@...db.de>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Nhat Pham <nphamcs@...il.com>
Subject: Re: linux-next: manual merge of the char-misc tree with the mm tree

On Thu, Dec 07, 2023 at 01:42:13PM +1100, Stephen Rothwell wrote:
> Hi all,
> 
> Today's linux-next merge of the char-misc tree got a conflict in:
> 
>   drivers/android/binder_alloc.c
> 
> between commit:
> 
>   8b59d7857c30 ("list_lru: allow explicit memcg and NUMA node selection")
> 
> from the mm tree and commits:
> 
>   ea9cdbf0c727 ("binder: rename lru shrinker utilities")
>   ea2735ce19c1 ("binder: refactor page range allocation")
> (and maybe others)
> 
> from the char-misc 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

Oh I wasn't aware of this patch. Thanks for fixing it Stephen!

I checked the diff against the char-misc tree and it looks correct. It's
a much much easier read too. I'll post it below if anyone is interested.

--
Carlos Llamas

diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index a4a4dc87ba53aa..ea5e1ba2d0d77f 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -210,7 +210,7 @@ static void binder_lru_freelist_add(struct binder_alloc *alloc,

 		trace_binder_free_lru_start(alloc, index);

-		ret = list_lru_add(&binder_freelist, &page->lru);
+		ret = list_lru_add_obj(&binder_freelist, &page->lru);
 		WARN_ON(!ret);

 		trace_binder_free_lru_end(alloc, index);
@@ -317,7 +317,7 @@ static void binder_lru_freelist_del(struct binder_alloc *alloc,
 		if (page->page_ptr) {
 			trace_binder_alloc_lru_start(alloc, index);

-			on_lru = list_lru_del(&binder_freelist, &page->lru);
+			on_lru = list_lru_del_obj(&binder_freelist, &page->lru);
 			WARN_ON(!on_lru);

 			trace_binder_alloc_lru_end(alloc, index);
@@ -931,7 +931,7 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc)
 			if (!alloc->pages[i].page_ptr)
 				continue;

-			on_lru = list_lru_del(&binder_freelist,
+			on_lru = list_lru_del_obj(&binder_freelist,
 					      &alloc->pages[i].lru);
 			page_addr = alloc->buffer + i * PAGE_SIZE;
 			binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
@@ -1307,4 +1307,3 @@ int binder_alloc_copy_from_buffer(struct binder_alloc *alloc,
 	return binder_alloc_do_buffer_copy(alloc, false, buffer, buffer_offset,
 					   dest, bytes);
 }
-

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