diff mbox series

[V2,09/13] ext4: Decrypt the block that needs to be partially zeroed

Message ID 20190428043121.30925-10-chandan@linux.ibm.com (mailing list archive)
State Superseded
Headers show
Series Consolidate FS read I/O callbacks code | expand

Commit Message

Chandan Rajendra April 28, 2019, 4:31 a.m. UTC 
__ext4_block_zero_page_range decrypts the entire page. This commit
decrypts the block to be partially zeroed instead of the whole page.

Signed-off-by: Chandan Rajendra <chandan@linux.ibm.com>
---
 fs/ext4/inode.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 51744a3c3964..ade1816697a8 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4080,9 +4080,10 @@  static int __ext4_block_zero_page_range(handle_t *handle,
 		if (S_ISREG(inode->i_mode) && IS_ENCRYPTED(inode)) {
 			/* We expect the key to be set. */
 			BUG_ON(!fscrypt_has_encryption_key(inode));
-			BUG_ON(blocksize != PAGE_SIZE);
 			WARN_ON_ONCE(fscrypt_decrypt_page(page->mapping->host,
-						page, PAGE_SIZE, 0, page->index));
+							page, blocksize,
+							round_down(offset, blocksize),
+							iblock));
 		}
 	}
 	if (ext4_should_journal_data(inode)) {