Re: [PATCH v2 2/3] erofs: treat files shared by inode_share as stacked

[Gao Xiang]

On Tue, Nov 03, 2026 at 03:29:32PM +0900, Daejun Park via B4 Relay wrote:
> From: Daejun Park <daejun7.park@xxxxxxxxxxx>
> 
> A file-backed mount whose image or extra device is on a block-backed
> EROFS passes erofs_is_stacked_file(). If inode_share shares that file,
> erofs_real_inode() may pick an inode of a file-backed EROFS in the same
> domain to read it. File-backed reads then nest in the same task.
> 
> Treat files that use erofs_ishare_fops as stacked.
> 
> Fixes: 34096ba919fd ("erofs: support unencoded inodes for page cache share")
> Reported-by: Sashiko <sashiko-bot@xxxxxxxxxx>
> Link: https://sashiko.dev/#/patchset/20261030-erofs-fileio-bioset-v1-1-caf47adbb3a3@xxxxxxxxxxx
> Signed-off-by: Daejun Park <daejun7.park@xxxxxxxxxxx>

Reviewed-by: Gao Xiang <xiang@xxxxxxxxxx>

I will address the first two patches upstream as fixes in these two weeks,
and then review the remaining one as a new feature later.

Thanks,
Gao Xiang