On Fri, Oct 11, 2024 at 09:44:42AM +0800, Baokun Li wrote:
On 2024/10/11 8:17, Sasha Levin wrote:
This is a note to let you know that I've just added the patch titled
Revert "mm/filemap: avoid buffered read/write race to read inconsistent data"to the 6.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: revert-mm-filemap-avoid-buffered-read-write-race-to-.patch and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
Hi Sasha,
The current patch is a cleanup after adding smp_load_acquire/store_release() to i_size_read/write().
In my opinion stable versions continue to use smp_rmb just fine, no need to backport the current patch to stable.
In addition, the current patch belongs to a patch set:
https://lore.kernel.org/all/20240124142857.4146716-1-libaokun1@huawei.com/
If the current patch does need to be backported to stable, then the entire patch set needs to be backported or problems will be introduced.
All the patches in the patch set are listed below:
d8f899d13d72 ("fs: make the i_size_read/write helpers be smp_load_acquire/store_release()") 4b944f8ef996 ("Revert "mm/filemap: avoid buffered read/write race to read inconsistent data"") ad72872eb3ae ("asm-generic: remove extra type checking in acquire/release for non-SMP case")
Ok, now dropped, thanks
greg k-h