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Message-Id: <20180105184502.48473-5-ebiggers3@gmail.com> Date: Fri, 5 Jan 2018 10:44:55 -0800 From: Eric Biggers <ebiggers3@...il.com> To: linux-fscrypt@...r.kernel.org, "Theodore Y . Ts'o" <tytso@....edu> Cc: linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net, linux-mtd@...ts.infradead.org, linux-fsdevel@...r.kernel.org, Eric Biggers <ebiggers@...gle.com> Subject: [PATCH v2 04/11] fscrypt: move fscrypt_ctx declaration to fscrypt_supp.h From: Eric Biggers <ebiggers@...gle.com> Filesystems only ever access 'struct fscrypt_ctx' through fscrypt functions. But when a filesystem is built without encryption support, these functions are all stubbed out, so the declaration of fscrypt_ctx is unneeded. Therefore, move it from fscrypt.h to fscrypt_supp.h. Signed-off-by: Eric Biggers <ebiggers@...gle.com> --- include/linux/fscrypt.h | 16 +--------------- include/linux/fscrypt_supp.h | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 15 deletions(-) diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index c23b2f16129a..0f94d087a6d1 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -24,23 +24,9 @@ #define FS_CRYPTO_BLOCK_SIZE 16 +struct fscrypt_ctx; struct fscrypt_info; -struct fscrypt_ctx { - union { - struct { - struct page *bounce_page; /* Ciphertext page */ - struct page *control_page; /* Original page */ - } w; - struct { - struct bio *bio; - struct work_struct work; - } r; - struct list_head free_list; /* Free list */ - }; - u8 flags; /* Flags */ -}; - /** * For encrypted symlinks, the ciphertext length is stored at the beginning * of the string in little-endian format. diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h index 33d641e27c18..fd6ee089ced0 100644 --- a/include/linux/fscrypt_supp.h +++ b/include/linux/fscrypt_supp.h @@ -11,6 +11,21 @@ #ifndef _LINUX_FSCRYPT_SUPP_H #define _LINUX_FSCRYPT_SUPP_H +struct fscrypt_ctx { + union { + struct { + struct page *bounce_page; /* Ciphertext page */ + struct page *control_page; /* Original page */ + } w; + struct { + struct bio *bio; + struct work_struct work; + } r; + struct list_head free_list; /* Free list */ + }; + u8 flags; /* Flags */ +}; + static inline bool fscrypt_has_encryption_key(const struct inode *inode) { return (inode->i_crypt_info != NULL); -- 2.16.0.rc0.223.g4a4ac83678-goog
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