From: Yang Shi <yang@os.amperecomputing.com>
To: muchun.song@linux.dev, catalin.marinas@arm.com, will@kernel.org,
akpm@linux-foundation.org
Cc: yang@os.amperecomputing.com, linux-mm@kvack.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] hugetlbfs: add MTE support
Date: Tue, 25 Jun 2024 16:37:17 -0700 [thread overview]
Message-ID: <20240625233717.2769975-1-yang@os.amperecomputing.com> (raw)
MTE can be supported on ram based filesystem. It is supported on tmpfs.
There is use case to use MTE on hugetlbfs as well, adding MTE support.
Signed-off-by: Yang Shi <yang@os.amperecomputing.com>
---
fs/hugetlbfs/inode.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index ecad73a4f713..c34faef62daf 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -110,7 +110,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
* way when do_mmap unwinds (may be important on powerpc
* and ia64).
*/
- vm_flags_set(vma, VM_HUGETLB | VM_DONTEXPAND);
+ vm_flags_set(vma, VM_HUGETLB | VM_DONTEXPAND | VM_MTE_ALLOWED);
vma->vm_ops = &hugetlb_vm_ops;
ret = seal_check_write(info->seals, vma);
--
2.41.0
next reply other threads:[~2024-06-25 23:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-25 23:37 Yang Shi [this message]
2024-06-26 20:40 ` Andrew Morton
2024-06-26 20:45 ` Yang Shi
2024-06-26 23:43 ` Yang Shi
2024-07-02 12:34 ` Catalin Marinas
2024-07-02 13:09 ` David Hildenbrand
2024-07-03 0:20 ` Yang Shi
2024-07-03 10:24 ` David Hildenbrand
2024-07-03 13:57 ` Catalin Marinas
2024-07-03 0:04 ` Yang Shi
2024-07-03 0:15 ` Yang Shi
2024-07-04 13:44 ` Catalin Marinas
2024-07-09 17:42 ` Yang Shi
2024-08-13 17:08 ` Yang Shi
2024-08-15 10:31 ` Catalin Marinas
2024-08-15 19:15 ` Yang Shi
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