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| author | Chengguang Xu <cgxu519@zoho.com.cn> | 2019-08-20 18:03:25 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-11 18:21:13 +0200 |
| commit | 18dd2b05f349a3b430791b64676374a2d490896b (patch) | |
| tree | 7966478ab9f07ca90c1de6060bfe5d67c9918d55 /fs/hfs/inode.c | |
| parent | 07f3596ce34484d99bbd1449381002b09b523528 (diff) | |
| download | linux-stable-18dd2b05f349a3b430791b64676374a2d490896b.tar.gz linux-stable-18dd2b05f349a3b430791b64676374a2d490896b.tar.bz2 linux-stable-18dd2b05f349a3b430791b64676374a2d490896b.zip | |
9p: avoid attaching writeback_fid on mmap with type PRIVATE
[ Upstream commit c87a37ebd40b889178664c2c09cc187334146292 ]
Currently on mmap cache policy, we always attach writeback_fid
whether mmap type is SHARED or PRIVATE. However, in the use case
of kata-container which combines 9p(Guest OS) with overlayfs(Host OS),
this behavior will trigger overlayfs' copy-up when excute command
inside container.
Link: http://lkml.kernel.org/r/20190820100325.10313-1-cgxu519@zoho.com.cn
Signed-off-by: Chengguang Xu <cgxu519@zoho.com.cn>
Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'fs/hfs/inode.c')
0 files changed, 0 insertions, 0 deletions