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| author | Andreas Gruenbacher <agruenba@redhat.com> | 2021-02-05 20:10:18 +0300 |
|---|---|---|
| committer | Andreas Gruenbacher <agruenba@redhat.com> | 2021-02-08 15:01:24 +0300 |
| commit | 866eef48d80234e1ea3a2f78b54afc563be3ea4a (patch) | |
| tree | 61626e0bd41554a4645d3c61e34488c4491765fe /fs/gfs2/super.h | |
| parent | 47b7ec1daa511cd82cb9c31e88bfdb664b031d2a (diff) | |
| download | linux-866eef48d80234e1ea3a2f78b54afc563be3ea4a.tar.xz | |
gfs2: Add trusted xattr support
Add support for an additional filesystem version (sb_fs_format = 1802).
When a filesystem with the new version is mounted, the filesystem
supports "trusted.*" xattrs.
In addition, version 1802 filesystems implement a form of forward
compatibility for xattrs: when xattrs with an unknown prefix (ea_type)
are found on a version 1802 filesystem, those attributes are not shown
by listxattr, and they are not accessible by getxattr, setxattr, or
removexattr.
This mechanism might turn out to be what we need in the future, but if
not, we can always bump the filesystem version and break compatibility
instead.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Andrew Price <anprice@redhat.com>
Diffstat (limited to 'fs/gfs2/super.h')
| -rw-r--r-- | fs/gfs2/super.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/gfs2/super.h b/fs/gfs2/super.h index 977079693bdc..08e502dec7ec 100644 --- a/fs/gfs2/super.h +++ b/fs/gfs2/super.h @@ -58,7 +58,9 @@ extern struct file_system_type gfs2meta_fs_type; extern const struct export_operations gfs2_export_ops; extern const struct super_operations gfs2_super_ops; extern const struct dentry_operations gfs2_dops; -extern const struct xattr_handler *gfs2_xattr_handlers[]; + +extern const struct xattr_handler *gfs2_xattr_handlers_max[]; +extern const struct xattr_handler **gfs2_xattr_handlers_min; #endif /* __SUPER_DOT_H__ */ |