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Diffstat (limited to 'fs/ext4/crypto.c')
-rw-r--r--fs/ext4/crypto.c31
1 files changed, 6 insertions, 25 deletions
diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index 2fab243a4..1a0835073 100644
--- a/fs/ext4/crypto.c
+++ b/fs/ext4/crypto.c
@@ -253,8 +253,7 @@ typedef enum {
EXT4_ENCRYPT,
} ext4_direction_t;
-static int ext4_page_crypto(struct ext4_crypto_ctx *ctx,
- struct inode *inode,
+static int ext4_page_crypto(struct inode *inode,
ext4_direction_t rw,
pgoff_t index,
struct page *src_page,
@@ -296,7 +295,6 @@ static int ext4_page_crypto(struct ext4_crypto_ctx *ctx,
else
res = crypto_ablkcipher_encrypt(req);
if (res == -EINPROGRESS || res == -EBUSY) {
- BUG_ON(req->base.data != &ecr);
wait_for_completion(&ecr.completion);
res = ecr.res;
}
@@ -353,7 +351,7 @@ struct page *ext4_encrypt(struct inode *inode,
if (IS_ERR(ciphertext_page))
goto errout;
ctx->w.control_page = plaintext_page;
- err = ext4_page_crypto(ctx, inode, EXT4_ENCRYPT, plaintext_page->index,
+ err = ext4_page_crypto(inode, EXT4_ENCRYPT, plaintext_page->index,
plaintext_page, ciphertext_page);
if (err) {
ciphertext_page = ERR_PTR(err);
@@ -378,37 +376,20 @@ struct page *ext4_encrypt(struct inode *inode,
*
* Return: Zero on success, non-zero otherwise.
*/
-int ext4_decrypt(struct ext4_crypto_ctx *ctx, struct page *page)
+int ext4_decrypt(struct page *page)
{
BUG_ON(!PageLocked(page));
- return ext4_page_crypto(ctx, page->mapping->host,
+ return ext4_page_crypto(page->mapping->host,
EXT4_DECRYPT, page->index, page, page);
}
-/*
- * Convenience function which takes care of allocating and
- * deallocating the encryption context
- */
-int ext4_decrypt_one(struct inode *inode, struct page *page)
-{
- int ret;
-
- struct ext4_crypto_ctx *ctx = ext4_get_crypto_ctx(inode);
-
- if (IS_ERR(ctx))
- return PTR_ERR(ctx);
- ret = ext4_decrypt(ctx, page);
- ext4_release_crypto_ctx(ctx);
- return ret;
-}
-
int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
{
struct ext4_crypto_ctx *ctx;
struct page *ciphertext_page = NULL;
struct bio *bio;
- ext4_lblk_t lblk = ex->ee_block;
+ ext4_lblk_t lblk = le32_to_cpu(ex->ee_block);
ext4_fsblk_t pblk = ext4_ext_pblock(ex);
unsigned int len = ext4_ext_get_actual_len(ex);
int ret, err = 0;
@@ -432,7 +413,7 @@ int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
}
while (len--) {
- err = ext4_page_crypto(ctx, inode, EXT4_ENCRYPT, lblk,
+ err = ext4_page_crypto(inode, EXT4_ENCRYPT, lblk,
ZERO_PAGE(0), ciphertext_page);
if (err)
goto errout;