The patch titled
Subject: mm/vmalloc: add code comment for find_vmap_area_exceed_addr()
has been added to the -mm mm-unstable branch. Its filename is
mm-vmalloc-add-code-comment-for-find_vmap_area_exceed_addr.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmalloc-add-code-comment-for-find_vmap_area_exceed_addr.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Baoquan He <bhe@xxxxxxxxxx>
Subject: mm/vmalloc: add code comment for find_vmap_area_exceed_addr()
Date: Mon, 6 Jun 2022 16:39:08 +0800
Its behaviour is like find_vma() which finds an area above the specified
address, add comment to make it easier to understand.
And also fix two places of grammer mistake/typo.
Link: https://lkml.kernel.org/r/20220606083909.363350-5-bhe@xxxxxxxxxx
Signed-off-by: Baoquan He <bhe@xxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Uladzislau Rezki (Sony) <urezki@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmalloc.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/mm/vmalloc.c~mm-vmalloc-add-code-comment-for-find_vmap_area_exceed_addr
+++ a/mm/vmalloc.c
@@ -790,6 +790,7 @@ unsigned long vmalloc_nr_pages(void)
return atomic_long_read(&nr_vmalloc_pages);
}
+/* Look up the first VA which satisfies addr < va_end, NULL if none. */
static struct vmap_area *find_vmap_area_exceed_addr(unsigned long addr)
{
struct vmap_area *va = NULL;
@@ -929,7 +930,7 @@ link_va(struct vmap_area *va, struct rb_
* Some explanation here. Just perform simple insertion
* to the tree. We do not set va->subtree_max_size to
* its current size before calling rb_insert_augmented().
- * It is because of we populate the tree from the bottom
+ * It is because we populate the tree from the bottom
* to parent levels when the node _is_ in the tree.
*
* Therefore we set subtree_max_size to zero after insertion,
@@ -1659,7 +1660,7 @@ static atomic_long_t vmap_lazy_nr = ATOM
/*
* Serialize vmap purging. There is no actual critical section protected
- * by this look, but we want to avoid concurrent calls for performance
+ * by this lock, but we want to avoid concurrent calls for performance
* reasons and to make the pcpu_get_vm_areas more deterministic.
*/
static DEFINE_MUTEX(vmap_purge_lock);
_
Patches currently in -mm which might be from bhe@xxxxxxxxxx are
mm-vmalloc-remove-the-unnecessary-type-check.patch
mm-vmalloc-remove-the-redundant-boundary-check.patch
mm-vmalloc-fix-typo-in-local-variable-name.patch
mm-vmalloc-add-code-comment-for-find_vmap_area_exceed_addr.patch
mm-ioremap-rename-ioremap_page_range-to-ioremap_range.patch
