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| author | Jon Tourville <jon.tourville@canonical.com> | 2022-07-11 19:36:08 +0300 |
|---|---|---|
| committer | John Johansen <john.johansen@canonical.com> | 2022-10-04 00:49:02 +0300 |
| commit | f4d6b94b40c966ddd9eeb0d451e8a02c595ec7e3 (patch) | |
| tree | 918cf11a9d4d6ccc6f362f4ee149586bff23c1fc /security/apparmor/Kconfig | |
| parent | f47acc4b7c43d566bf42816335830c4c17f9c200 (diff) | |
| download | linux-f4d6b94b40c966ddd9eeb0d451e8a02c595ec7e3.tar.xz | |
apparmor: use zstd compression for profile data
Change the algorithm used by apparmor to compress profile data from
zlib to zstd, using the new zstd API introduced in 5.16.
Zstd provides a larger range of compression levels than zlib and
significantly better performance at the default level (for a relatively
small increase in compressed size).
The apparmor module parameter raw_data_compression_level is now clamped
to the minimum and maximum compression levels reported by the zstd
library. A compression level of 0 retains the previous behavior of
disabling policy compression instead of using zstd's behavior, which is
to use the default compression level.
Signed-off-by: Jon Tourville <jon.tourville@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/Kconfig')
| -rw-r--r-- | security/apparmor/Kconfig | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/security/apparmor/Kconfig b/security/apparmor/Kconfig index cb3496e00d8a..acac3bb3eef2 100644 --- a/security/apparmor/Kconfig +++ b/security/apparmor/Kconfig @@ -85,8 +85,8 @@ config SECURITY_APPARMOR_HASH_DEFAULT config SECURITY_APPARMOR_EXPORT_BINARY bool "Allow exporting the raw binary policy" depends on SECURITY_APPARMOR_INTROSPECT_POLICY - select ZLIB_INFLATE - select ZLIB_DEFLATE + select ZSTD_COMPRESS + select ZSTD_DECOMPRESS default y help This option allows reading back binary policy as it was loaded. |