ext4: provide ext4_issue_zeroout()

Create new function ext4_issue_zeroout() to zeroout contiguous (both
logically and physically) part of inode data. We will need to issue
zeroout when extent structure is not readily available and this function
will allow us to do it without making up fake extent structures.

Signed-off-by: Jan Kara <jack@suse.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 2 insertions, 4 deletions

diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
index 1a0835073663..c8021208a7eb 100644
--- a/fs/ext4/crypto.c
+++ b/fs/ext4/crypto.c
@@ -384,14 +384,12 @@ int ext4_decrypt(struct page *page)
                                 EXT4_DECRYPT, page->index, page, page);
 }
 
-int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex)
+int ext4_encrypted_zeroout(struct inode *inode, ext4_lblk_t lblk,
+                           ext4_fsblk_t pblk, ext4_lblk_t len)
 {
         struct ext4_crypto_ctx  *ctx;
         struct page             *ciphertext_page = NULL;
         struct bio              *bio;
-        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;
 
 #if 0