diff options
| author | David Gstir | 2016-11-13 22:20:45 +0100 |
|---|---|---|
| committer | Theodore Ts'o | 2016-11-13 18:53:10 -0500 |
| commit | b50f7b268bad8088dfe7579a65cd910d8cc5c40f (patch) | |
| tree | 7a4db96f6779146e5b9df84bd7d1cbb0d10e1032 /fs/crypto | |
| parent | 1c7dcf69eea3224474fe884a03b3e19b82d1101e (diff) | |
fscrypt: Allow fscrypt_decrypt_page() to function with non-writeback pages
Some filesystem might pass pages which do not have page->mapping->host
set to the encrypted inode. We want the caller to explicitly pass the
corresponding inode.
Signed-off-by: David Gstir <david@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/crypto')
| -rw-r--r-- | fs/crypto/crypto.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c index f38dc8aac2fe..222a70520565 100644 --- a/fs/crypto/crypto.c +++ b/fs/crypto/crypto.c @@ -271,7 +271,8 @@ EXPORT_SYMBOL(fscrypt_encrypt_page); /** * f2crypt_decrypt_page() - Decrypts a page in-place - * @page: The page to decrypt. Must be locked. + * @inode: The encrypted inode to decrypt. + * @page: The page to decrypt. Must be locked. * * Decrypts page in-place using the ctx encryption context. * @@ -279,12 +280,12 @@ EXPORT_SYMBOL(fscrypt_encrypt_page); * * Return: Zero on success, non-zero otherwise. */ -int fscrypt_decrypt_page(struct page *page) +int fscrypt_decrypt_page(struct inode *inode, struct page *page) { BUG_ON(!PageLocked(page)); - return do_page_crypto(page->mapping->host, - FS_DECRYPT, page->index, page, page, GFP_NOFS); + return do_page_crypto(inode, FS_DECRYPT, page->index, page, page, + GFP_NOFS); } EXPORT_SYMBOL(fscrypt_decrypt_page); @@ -419,7 +420,7 @@ static void completion_pages(struct work_struct *work) bio_for_each_segment_all(bv, bio, i) { struct page *page = bv->bv_page; - int ret = fscrypt_decrypt_page(page); + int ret = fscrypt_decrypt_page(page->mapping->host, page); if (ret) { WARN_ON_ONCE(1); |