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| author | Eric Biggers <ebiggers@google.com> | 2022-06-09 17:06:16 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2022-07-15 23:42:30 -0700 |
| commit | 8da572c52a9be6d006bae290339c629fc6501910 (patch) | |
| tree | db99443b0dc6ad0f526bc952d834cbcfeecc63e4 /fs/verity/Kconfig | |
| parent | 32346491ddf24599decca06190ebca03ff9de7f8 (diff) | |
fs-verity: mention btrfs support
btrfs supports fs-verity since Linux v5.15. Document this.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Acked-by: David Sterba <dsterba@suse.com>
Link: https://lore.kernel.org/r/20220610000616.18225-1-ebiggers@kernel.org
Diffstat (limited to 'fs/verity/Kconfig')
| -rw-r--r-- | fs/verity/Kconfig | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/verity/Kconfig b/fs/verity/Kconfig index 54598cd80145..aad1f1d998b9 100644 --- a/fs/verity/Kconfig +++ b/fs/verity/Kconfig @@ -14,11 +14,11 @@ config FS_VERITY help This option enables fs-verity. fs-verity is the dm-verity mechanism implemented at the file level. On supported - filesystems (currently EXT4 and F2FS), userspace can use an - ioctl to enable verity for a file, which causes the filesystem - to build a Merkle tree for the file. The filesystem will then - transparently verify any data read from the file against the - Merkle tree. The file is also made read-only. + filesystems (currently ext4, f2fs, and btrfs), userspace can + use an ioctl to enable verity for a file, which causes the + filesystem to build a Merkle tree for the file. The filesystem + will then transparently verify any data read from the file + against the Merkle tree. The file is also made read-only. This serves as an integrity check, but the availability of the Merkle tree root hash also allows efficiently supporting |