linux-ext4 - [PATCH 06/11] fscrypt: pass a byte offset to fscrypt_zeroout_range_inline

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251118062159.2358085-7-hch@lst.de>
Date: Tue, 18 Nov 2025 07:21:49 +0100
From: Christoph Hellwig <hch@....de>
To: Eric Biggers <ebiggers@...nel.org>
Cc: "Theodore Y. Ts'o" <tytso@....edu>,
	Jaegeuk Kim <jaegeuk@...nel.org>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	Chao Yu <chao@...nel.org>,
	Christian Brauner <brauner@...nel.org>,
	"Darrick J. Wong" <djwong@...nel.org>,
	linux-fscrypt@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	linux-f2fs-devel@...ts.sourceforge.net,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 06/11] fscrypt: pass a byte offset to fscrypt_zeroout_range_inline_crypt

Logical offsets into an inode are usually expresssed as bytes in the VFS.
Switch fscrypt_zeroout_range_inline_crypt to that convention.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/crypto/bio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c
index 3a7e3b37ac02..07d757d2777e 100644
--- a/fs/crypto/bio.c
+++ b/fs/crypto/bio.c
@@ -70,12 +70,11 @@ static void fscrypt_zeroout_range_end_io(struct bio *bio)
 }
 
 static int fscrypt_zeroout_range_inline_crypt(const struct inode *inode,
-					      pgoff_t lblk, sector_t sector,
+					      loff_t pos, sector_t sector,
 					      unsigned int len)
 {
 	const unsigned int blockbits = inode->i_blkbits;
 	const unsigned int blocks_per_page = 1 << (PAGE_SHIFT - blockbits);
-	loff_t pos = (loff_t)lblk << blockbits;
 	struct fscrypt_zero_done done = {
 		.pending	= ATOMIC_INIT(1),
 		.done		= COMPLETION_INITIALIZER_ONSTACK(done.done),
@@ -142,6 +141,7 @@ int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
 	const unsigned int du_per_page = 1U << du_per_page_bits;
 	u64 du_index = (u64)lblk << (inode->i_blkbits - du_bits);
 	u64 du_remaining = (u64)len << (inode->i_blkbits - du_bits);
+	loff_t pos = (loff_t)lblk << inode->i_blkbits;
 	sector_t sector = pblk << (inode->i_blkbits - SECTOR_SHIFT);
 	struct page *pages[16]; /* write up to 16 pages at a time */
 	unsigned int nr_pages;
@@ -154,7 +154,7 @@ int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
 		return 0;
 
 	if (fscrypt_inode_uses_inline_crypto(inode))
-		return fscrypt_zeroout_range_inline_crypt(inode, lblk, sector,
+		return fscrypt_zeroout_range_inline_crypt(inode, pos, sector,
 							  len);
 
 	BUILD_BUG_ON(ARRAY_SIZE(pages) > BIO_MAX_VECS);
-- 
2.47.3