This is a note to let you know that I've just added the patch titled
ia64: mmap: Consider pgoff when searching for free mapping
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ia64-mmap-consider-pgoff-when-searching-for-free-mapping.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 07e981137f17e5275b6fa5fd0c28b0ddb4519702 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Fri, 21 Jul 2023 17:24:32 +0200
Subject: ia64: mmap: Consider pgoff when searching for free mapping
From: Helge Deller <deller@xxxxxx>
commit 07e981137f17e5275b6fa5fd0c28b0ddb4519702 upstream.
IA64 is the only architecture which does not consider the pgoff value when
searching for a possible free memory region with vm_unmapped_area().
Adding this seems to have no negative side effect on IA64, so add it now
to make IA64 consistent with all other architectures.
Cc: stable@xxxxxxxxxxxxxxx # 6.4
Signed-off-by: Helge Deller <deller@xxxxxx>
Tested-by: matoro <matoro_mailinglist_kernel@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-ia64@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20230721152432.196382-3-deller@xxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/ia64/kernel/sys_ia64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 6e948d015332..eb561cc93632 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -63,7 +63,7 @@ arch_get_unmapped_area (struct file *filp, unsigned long addr, unsigned long len
info.low_limit = addr;
info.high_limit = TASK_SIZE;
info.align_mask = align_mask;
- info.align_offset = 0;
+ info.align_offset = pgoff << PAGE_SHIFT;
return vm_unmapped_area(&info);
}
--
2.41.0
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-6.4/of-preserve-of-display-device-name-for-compatibility.patch
queue-6.4/io_uring-fix-io_uring-mmap-by-using-architecture-provided-get_unmapped_area.patch
queue-6.4/ia64-mmap-consider-pgoff-when-searching-for-free-mapping.patch
