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| author | Eric Biggers <ebiggers@google.com> | 2019-10-24 14:54:38 -0700 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2019-11-06 12:34:42 -0800 |
| commit | 0eee17e3322625b87ce5fa631bda16562a8dc494 (patch) | |
| tree | 750222432e17c8a4cb73dddc018118b3f0d196fa /fs/f2fs | |
| parent | b925acb8f83d7ce3582b34018c05aae1be666abf (diff) | |
| download | lwn-0eee17e3322625b87ce5fa631bda16562a8dc494.tar.gz lwn-0eee17e3322625b87ce5fa631bda16562a8dc494.zip | |
f2fs: add support for IV_INO_LBLK_64 encryption policies
f2fs inode numbers are stable across filesystem resizing, and f2fs inode
and file logical block numbers are always 32-bit. So f2fs can always
support IV_INO_LBLK_64 encryption policies. Wire up the needed
fscrypt_operations to declare support.
Acked-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/super.c | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index 1443cee15863..851ac9522926 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -2308,13 +2308,27 @@ static bool f2fs_dummy_context(struct inode *inode) return DUMMY_ENCRYPTION_ENABLED(F2FS_I_SB(inode)); } +static bool f2fs_has_stable_inodes(struct super_block *sb) +{ + return true; +} + +static void f2fs_get_ino_and_lblk_bits(struct super_block *sb, + int *ino_bits_ret, int *lblk_bits_ret) +{ + *ino_bits_ret = 8 * sizeof(nid_t); + *lblk_bits_ret = 8 * sizeof(block_t); +} + static const struct fscrypt_operations f2fs_cryptops = { - .key_prefix = "f2fs:", - .get_context = f2fs_get_context, - .set_context = f2fs_set_context, - .dummy_context = f2fs_dummy_context, - .empty_dir = f2fs_empty_dir, - .max_namelen = F2FS_NAME_LEN, + .key_prefix = "f2fs:", + .get_context = f2fs_get_context, + .set_context = f2fs_set_context, + .dummy_context = f2fs_dummy_context, + .empty_dir = f2fs_empty_dir, + .max_namelen = F2FS_NAME_LEN, + .has_stable_inodes = f2fs_has_stable_inodes, + .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits, }; #endif |