Chengguang Xu 338aec3e9d 9p: avoid attaching writeback_fid on mmap with type PRIVATE ...

[ Upstream commit c87a37ebd4 ]

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>

2019-10-11 18:18:38 +02:00

..

acl.c

9p: acl: fix uninitialized iattr access

2019-07-03 13:15:58 +02:00

acl.h

…

cache.c

fscache: remove unused ->now_uncached callback

2017-09-06 17:27:26 -07:00

cache.h

fs: 9p: cache.h: Add #define of include guard

2015-11-11 02:19:50 -05:00

fid.c

9p: constify ->d_name handling

2017-01-12 04:01:17 -05:00

fid.h

9p: use clone_fid()

2016-08-03 11:12:12 -04:00

Kconfig

…

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

v9fs_vfs.h

9p: use inode->i_lock to protect i_size_write() under 32-bit

2019-03-23 14:35:09 +01:00

v9fs.c

9p locks: add mount option for lock retry interval

2019-04-20 09:15:04 +02:00

v9fs.h

9p locks: add mount option for lock retry interval

2019-04-20 09:15:04 +02:00

vfs_addr.c

9p: pass the correct prototype to read_cache_page

2019-07-31 07:28:55 +02:00

vfs_dentry.c

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

vfs_dir.c

9p: do not trust pdu content for stat item size

2019-04-20 09:15:04 +02:00

vfs_file.c

9p: avoid attaching writeback_fid on mmap with type PRIVATE

2019-10-11 18:18:38 +02:00

vfs_inode_dotl.c

9p: use inode->i_lock to protect i_size_write() under 32-bit

2019-03-23 14:35:09 +01:00

vfs_inode.c

9p: use inode->i_lock to protect i_size_write() under 32-bit

2019-03-23 14:35:09 +01:00

vfs_super.c

9p: use inode->i_lock to protect i_size_write() under 32-bit

2019-03-23 14:35:09 +01:00

xattr.c

fs/9p/xattr.c: catch the error of p9_client_clunk when setting xattr failed

2018-09-09 19:55:55 +02:00

xattr.h

9p: xattr simplifications

2015-11-13 20:34:33 -05:00