lisa/android_kernel_xiaomi_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

FROMLIST: f2fs: add support for IV_INO_LBLK_64 encryption policies

Browse Source 
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.

Signed-off-by: Eric Biggers <ebiggers@google.com>

Change-Id: I15c9b0f277df106701c4aacdf9456dbb3f8876a1
Signed-off-by: Satya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11210903/
This commit is contained in:
Eric Biggers 2019-10-24 14:43:37 -07:00 committed by Satya Tangirala
parent 2735b44d17
commit a62a18ccb1
1 changed files with 20 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
fs/f2fs/super.c
View File

@ -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