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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 18:53:52 +08:00
linux-next/fs/overlayfs
Christian Brauner 6521f89170
namei: prepare for idmapped mounts
The various vfs_*() helpers are called by filesystems or by the vfs
itself to perform core operations such as create, link, mkdir, mknod, rename,
rmdir, tmpfile and unlink. Enable them to handle idmapped mounts. If the
inode is accessed through an idmapped mount map it into the
mount's user namespace and pass it down. Afterwards the checks and
operations are identical to non-idmapped mounts. If the initial user
namespace is passed nothing changes so non-idmapped mounts will see
identical behavior as before.

Link: https://lore.kernel.org/r/20210121131959.646623-15-christian.brauner@ubuntu.com
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
2021-01-24 14:27:18 +01:00
..
copy_up.c xattr: handle idmapped mounts 2021-01-24 14:27:17 +01:00
dir.c namei: prepare for idmapped mounts 2021-01-24 14:27:18 +01:00
export.c ovl: propagate ovl_fs to ovl_decode_real_fh and ovl_encode_real_fh 2020-11-12 11:31:55 +01:00
file.c inode: make init and permission helpers idmapped mount aware 2021-01-24 14:27:16 +01:00
inode.c xattr: handle idmapped mounts 2021-01-24 14:27:17 +01:00
Kconfig docs: fix broken references to text files 2020-04-20 15:35:59 -06:00
Makefile treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
namei.c ovl: check privs before decoding file handle 2020-12-14 15:26:14 +01:00
overlayfs.h namei: prepare for idmapped mounts 2021-01-24 14:27:18 +01:00
ovl_entry.h ovl: user xattr 2020-12-14 15:26:14 +01:00
readdir.c ovl: support [S|G]ETFLAGS and FS[S|G]ETXATTR ioctls for directories 2020-10-06 15:38:14 +02:00
super.c xattr: handle idmapped mounts 2021-01-24 14:27:17 +01:00
util.c inode: make init and permission helpers idmapped mount aware 2021-01-24 14:27:16 +01:00