* [PATCH] mm: use vma_lookup() instead of find_vma()
@ 2022-10-07 3:03 Deming Wang
0 siblings, 0 replies; only message in thread
From: Deming Wang @ 2022-10-07 3:03 UTC (permalink / raw)
To: akpm; +Cc: linux-mm, linux-kernel, Deming Wang
Using vma_lookup() verifies the start address is contained in the found
vma. This results in easier to read the code.
Signed-off-by: Deming Wang <wangdeming@inspur.com>
---
mm/mincore.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/mincore.c b/mm/mincore.c
index fa200c14185f..e7e046fe17d7 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -190,8 +190,8 @@ static long do_mincore(unsigned long addr, unsigned long pages, unsigned char *v
unsigned long end;
int err;
- vma = find_vma(current->mm, addr);
- if (!vma || addr < vma->vm_start)
+ vma = vma_lookup(current->mm, addr);
+ if (!vma)
return -ENOMEM;
end = min(vma->vm_end, addr + (pages << PAGE_SHIFT));
if (!can_do_mincore(vma)) {
--
2.27.0
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2022-10-08 9:28 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-10-07 3:03 [PATCH] mm: use vma_lookup() instead of find_vma() Deming Wang
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).