From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,vbabka@suse.cz,usamaarif642@gmail.com,souravpanda@google.com,shakeel.butt@linux.dev,pasha.tatashin@soleen.com,kent.overstreet@linux.dev,hannes@cmpxchg.org,akpm@linux-foundation.org,00107082@163.com,surenb@google.com,akpm@linux-foundation.org
Subject: [merged mm-stable] alloc_tag-use-release_pages-in-the-cleanup-path.patch removed from -mm tree
Date: Sun, 21 Sep 2025 14:26:21 -0700 [thread overview]
Message-ID: <20250921212622.5214EC4CEE7@smtp.kernel.org> (raw)
The quilt patch titled
Subject: alloc_tag: use release_pages() in the cleanup path
has been removed from the -mm tree. Its filename was
alloc_tag-use-release_pages-in-the-cleanup-path.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Suren Baghdasaryan <surenb@google.com>
Subject: alloc_tag: use release_pages() in the cleanup path
Date: Mon, 15 Sep 2025 14:27:54 -0700
Patch series "Minor fixes for memory allocation profiling", v2.
Over the last couple months I gathered a few reports of minor issues in
memory allocation profiling which are addressed in this patchset.
This patch (of 2):
When bulk-freeing an array of pages use release_pages() instead of freeing
them page-by-page.
Link: https://lkml.kernel.org/r/20250915212756.3998938-1-surenb@google.com
Link: https://lkml.kernel.org/r/20250915212756.3998938-2-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Suggested-by: Usama Arif <usamaarif642@gmail.com>
Acked-by: Shakeel Butt <shakeel.butt@linux.dev>
Acked-by: Usama Arif <usamaarif642@gmail.com>
Cc: David Wang <00107082@163.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
lib/alloc_tag.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/lib/alloc_tag.c~alloc_tag-use-release_pages-in-the-cleanup-path
+++ a/lib/alloc_tag.c
@@ -438,9 +438,10 @@ static int vm_module_tags_populate(void)
if (nr < more_pages ||
vmap_pages_range(phys_end, phys_end + (nr << PAGE_SHIFT), PAGE_KERNEL,
next_page, PAGE_SHIFT) < 0) {
+ release_pages_arg arg = { .pages = next_page };
+
/* Clean up and error out */
- for (int i = 0; i < nr; i++)
- __free_page(next_page[i]);
+ release_pages(arg, nr);
return -ENOMEM;
}
@@ -682,11 +683,10 @@ static int __init alloc_mod_tags_mem(voi
static void __init free_mod_tags_mem(void)
{
- int i;
+ release_pages_arg arg = { .pages = vm_module_tags->pages };
module_tags.start_addr = 0;
- for (i = 0; i < vm_module_tags->nr_pages; i++)
- __free_page(vm_module_tags->pages[i]);
+ release_pages(arg, vm_module_tags->nr_pages);
kfree(vm_module_tags->pages);
free_vm_area(vm_module_tags);
}
_
Patches currently in -mm which might be from surenb@google.com are
reply other threads:[~2025-09-21 21:26 UTC|newest]
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