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authorEric Biggers <ebiggers@google.com>2017-02-22 13:25:14 -0800
committerTheodore Ts'o <tytso@mit.edu>2017-03-15 14:15:47 -0400
commit94840e3c802daa1a62985957f36ac48faf8ceedd (patch)
tree09901080ff440233d2c092bd51a2aa296a2d9710 /fs/crypto
parent1b53cf9815bb4744958d41f3795d5d5a1d365e2d (diff)
downloadlinux-94840e3c802daa1a62985957f36ac48faf8ceedd.tar.gz
fscrypt: eliminate ->prepare_context() operation
The only use of the ->prepare_context() fscrypt operation was to allow
ext4 to evict inline data from the inode before ->set_context().
However, there is no reason why this cannot be done as simply the first
step in ->set_context(), and in fact it makes more sense to do it that
way because then the policy modes and flags get validated before any
real work is done.  Therefore, merge ext4_prepare_context() into
ext4_set_context(), and remove ->prepare_context().

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/crypto')
-rw-r--r--fs/crypto/policy.c7
1 files changed, 0 insertions, 7 deletions
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index 14b76da71269..4908906d54d5 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -33,17 +33,10 @@ static int create_encryption_context_from_policy(struct inode *inode,
 				const struct fscrypt_policy *policy)
 {
 	struct fscrypt_context ctx;
-	int res;
 
 	if (!inode->i_sb->s_cop->set_context)
 		return -EOPNOTSUPP;
 
-	if (inode->i_sb->s_cop->prepare_context) {
-		res = inode->i_sb->s_cop->prepare_context(inode);
-		if (res)
-			return res;
-	}
-
 	ctx.format = FS_ENCRYPTION_CONTEXT_FORMAT_V1;
 	memcpy(ctx.master_key_descriptor, policy->master_key_descriptor,
 					FS_KEY_DESCRIPTOR_SIZE);