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| author |  Satya Tangirala <satyat@google.com>
| 2020-07-02 01:56:06 +0000 |
|---|---|---|
| committer |  Eric Biggers <ebiggers@google.com>
| 2020-07-08 10:29:43 -0700 |
| commit | 27aacd28ea3b891d1cdc7a9c726e2237f7d3701f (patch) | |
| tree | e409a2b7f35431720f61c5c29d84c3647435455e /Documentation/filesystems/f2fs.rst | |
| parent | fscrypt: add inline encryption support (diff) | |
| download | linux-27aacd28ea3b891d1cdc7a9c726e2237f7d3701f.tar.gz linux-27aacd28ea3b891d1cdc7a9c726e2237f7d3701f.tar.bz2 linux-27aacd28ea3b891d1cdc7a9c726e2237f7d3701f.zip | |
f2fs: add inline encryption support
Wire up f2fs to support inline encryption via the helper functions which
fs/crypto/ now provides. This includes:
- Adding a mount option 'inlinecrypt' which enables inline encryption
on encrypted files where it can be used.
- Setting the bio_crypt_ctx on bios that will be submitted to an
inline-encrypted file.
- Not adding logically discontiguous data to bios that will be submitted
to an inline-encrypted file.
- Not doing filesystem-layer crypto on inline-encrypted files.
This patch includes a fix for a race during IPU by
Sahitya Tummala <stummala@codeaurora.org>
Signed-off-by: Satya Tangirala <satyat@google.com>
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20200702015607.1215430-4-satyat@google.com
Co-developed-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'Documentation/filesystems/f2fs.rst')
| -rw-r--r-- | Documentation/filesystems/f2fs.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst index 099d45ac8d8f..8b4fac44f4e1 100644 --- a/Documentation/filesystems/f2fs.rst +++ b/Documentation/filesystems/f2fs.rst @@ -258,6 +258,13 @@ compress_extension=%s Support adding specified extension, so that f2fs can enab on compression extension list and enable compression on these file by default rather than to enable it via ioctl. For other files, we can still enable compression via ioctl. +inlinecrypt + When possible, encrypt/decrypt the contents of encrypted + files using the blk-crypto framework rather than + filesystem-layer encryption. This allows the use of + inline encryption hardware. The on-disk format is + unaffected. For more details, see + Documentation/block/inline-encryption.rst. ====================== ============================================================ Debugfs Entries |