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From: Christian Brauner <brauner@kernel.org>
To: Jeff Layton <jlayton@kernel.org>, Jan Kara <jack@suse.com>,
	Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>,
	Josef Bacik <josef@toxicpanda.com>
Cc: Christian Brauner <brauner@kernel.org>,
	Eric Biggers <ebiggers@kernel.org>,
	"Theodore Y. Ts'o" <tytso@mit.edu>,
	linux-fsdevel@vger.kernel.org, linux-fscrypt@vger.kernel.org,
	fsverity@lists.linux.dev
Subject: [PATCH RFC DRAFT v2 01/13] fs: add fscrypt offset
Date: Tue, 22 Jul 2025 14:57:07 +0200	[thread overview]
Message-ID: <20250722-work-inode-fscrypt-v2-1-782f1fdeaeba@kernel.org> (raw)
In-Reply-To: <20250722-work-inode-fscrypt-v2-0-782f1fdeaeba@kernel.org>

Store the offset of the fscrypt data pointer from struct inode in struct
inode_operations. Both are embedded in the filesystem's private inode.

This will allow us to drop the fscrypt data pointer from struct inode
itself and move it into the filesystem's inode.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 include/linux/fs.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 96c7925a6551..82678b523720 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2217,6 +2217,7 @@ int wrap_directory_iterator(struct file *, struct dir_context *,
 	{ return wrap_directory_iterator(file, ctx, x); }
 
 struct inode_operations {
+	ptrdiff_t i_fscrypt;
 	struct dentry * (*lookup) (struct inode *,struct dentry *, unsigned int);
 	const char * (*get_link) (struct dentry *, struct inode *, struct delayed_call *);
 	int (*permission) (struct mnt_idmap *, struct inode *, int);

-- 
2.47.2


  reply	other threads:[~2025-07-22 12:57 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-07-15 14:35 [PATCH RFC DRAFT DOESNOTBUILD] inode: free up more space Christian Brauner
2025-07-15 14:52 ` Jeff Layton
2025-07-15 16:09 ` Matthew Wilcox
2025-07-16 12:53   ` Christian Brauner
2025-07-16 13:02   ` Christoph Hellwig
2025-07-17  7:48     ` Christian Brauner
2025-07-17  7:51       ` Christoph Hellwig
2025-07-17 15:55         ` Darrick J. Wong
2025-07-16  9:15 ` Jan Kara
2025-07-16  9:50   ` Christian Brauner
2025-07-16 11:21 ` Christoph Hellwig
2025-07-16 12:19   ` Christian Brauner
2025-07-16 12:38     ` Jeff Layton
2025-07-16 14:08       ` Matthew Wilcox
2025-07-16 14:10         ` Christoph Hellwig
2025-07-17  8:32           ` Christian Brauner
2025-07-17 10:54             ` Jan Kara
2025-07-17 11:40               ` Christian Brauner
2025-07-17 11:43                 ` Christoph Hellwig
2025-07-17 12:57     ` Jan Kara
2025-07-18  8:24       ` Christian Brauner
2025-07-18  8:32         ` Christoph Hellwig
2025-07-18  8:58           ` Christian Brauner
2025-07-18 16:04 ` Eric Biggers
2025-07-18 17:11   ` Eric Biggers
2025-07-21  6:14   ` Christoph Hellwig
2025-07-21 23:55     ` Eric Biggers
2025-07-22  5:49       ` Christoph Hellwig
2025-07-22  7:52       ` Jan Kara
2025-07-22 12:57         ` [PATCH RFC DRAFT v2 00/13] Move fscrypt and fsverity out of struct inode Christian Brauner
2025-07-22 12:57           ` Christian Brauner [this message]
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 02/13] fs/crypto: use accessors Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 03/13] ext4: move fscrypt to filesystem inode Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 04/13] ubifs: " Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 05/13] f2fs: " Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 06/13] ceph: " Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 07/13] fs: drop i_crypt_info from struct inode Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 08/13] fs: add fsverity offset Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 09/13] fs/verity: use accessors Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 10/13] btrfs: move fsverity to filesystem inode Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 11/13] ext4: " Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 12/13] f2fs: " Christian Brauner
2025-07-22 12:57           ` [PATCH RFC DRAFT v2 13/13] fs: drop i_verity_info from struct inode Christian Brauner
2025-07-22 13:09           ` [PATCH RFC DRAFT v2 00/13] Move fscrypt and fsverity out of " Christian Brauner
2025-07-22 19:27             ` [PATCH v3 " Christian Brauner
2025-07-22 19:27               ` [PATCH v3 01/13] fs: add fscrypt offset Christian Brauner
2025-07-22 20:02                 ` Eric Biggers
2025-07-23  7:48                   ` Christian Brauner
2025-07-23  3:49                 ` Al Viro
2025-07-22 19:27               ` [PATCH v3 02/13] fs/crypto: use accessors Christian Brauner
2025-07-22 19:27               ` [PATCH v3 03/13] ext4: move fscrypt to filesystem inode Christian Brauner
2025-07-22 20:07                 ` Eric Biggers
2025-07-23  8:59                   ` Christian Brauner
2025-07-22 19:27               ` [PATCH v3 04/13] ubifs: " Christian Brauner
2025-07-22 19:27               ` [PATCH v3 05/13] f2fs: " Christian Brauner
2025-07-22 19:27               ` [PATCH v3 06/13] ceph: " Christian Brauner
2025-07-22 20:14                 ` Eric Biggers
2025-07-23  8:58                   ` Christian Brauner
2025-07-22 19:27               ` [PATCH v3 07/13] fs: drop i_crypt_info from struct inode Christian Brauner
2025-07-22 20:19                 ` Eric Biggers
2025-07-23  8:52                   ` Christian Brauner
2025-07-22 19:27               ` [PATCH v3 08/13] fs: add fsverity offset Christian Brauner
2025-07-23  3:53                 ` Al Viro
2025-07-22 19:27               ` [PATCH v3 09/13] fs/verity: use accessors Christian Brauner
2025-07-22 20:25                 ` Eric Biggers
2025-07-23  8:55                   ` Christian Brauner
2025-07-22 19:27               ` [PATCH v3 10/13] btrfs: move fsverity to filesystem inode Christian Brauner
2025-07-22 19:27               ` [PATCH v3 11/13] ext4: " Christian Brauner
2025-07-22 19:27               ` [PATCH v3 12/13] f2fs: " Christian Brauner
2025-07-22 19:27               ` [PATCH v3 13/13] fs: drop i_verity_info from struct inode Christian Brauner
2025-07-23 10:57               ` [PATCH v4 00/15] Move fscrypt and fsverity out of " Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 01/15] fs: add fscrypt offset Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 02/15] fs/crypto: use accessors Christian Brauner
2025-07-25  0:29                   ` Eric Biggers
2025-07-25  4:01                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 03/15] ext4: move fscrypt to filesystem inode Christian Brauner
2025-07-25  0:32                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 04/15] ubifs: " Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 05/15] f2fs: " Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 06/15] ceph: " Christian Brauner
2025-07-25  0:34                   ` Eric Biggers
2025-07-25  8:15                     ` Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 07/15] fs: drop i_crypt_info from struct inode Christian Brauner
2025-07-25  0:38                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 08/15] fscrypt: rephrase documentation and comments Christian Brauner
2025-07-25  0:35                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 09/15] fs: add fsverity offset Christian Brauner
2025-07-25  0:45                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 10/15] fs/verity: use accessors Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 11/15] btrfs: move fsverity to filesystem inode Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 12/15] ext4: " Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 13/15] f2fs: " Christian Brauner
2025-07-23 10:57                 ` [PATCH v4 14/15] fs: drop i_verity_info from struct inode Christian Brauner
2025-07-25  0:43                   ` Eric Biggers
2025-07-23 10:57                 ` [PATCH v4 15/15] fsverity: rephrase documentation and comments Christian Brauner
2025-07-22 13:50           ` [PATCH RFC DRAFT v2 00/13] Move fscrypt and fsverity out of struct inode Jeff Layton

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