summaryrefslogtreecommitdiff
path: root/fs/f2fs
diff options
context:
space:
mode:
authorEric Biggers <ebiggers@google.com>2019-10-24 14:54:38 -0700
committerEric Biggers <ebiggers@google.com>2019-11-06 12:34:42 -0800
commit0eee17e3322625b87ce5fa631bda16562a8dc494 (patch)
tree750222432e17c8a4cb73dddc018118b3f0d196fa /fs/f2fs
parentb925acb8f83d7ce3582b34018c05aae1be666abf (diff)
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.c26
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