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From: Eric Biggers <ebiggers3@gmail.com>
To: linux-fscrypt@vger.kernel.org, "Theodore Y . Ts'o" <tytso@mit.edu>
Cc: linux-ext4@vger.kernel.org,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org,
	Eric Biggers <ebiggers@google.com>
Subject: [PATCH v2 05/11] fscrypt: split fscrypt_dummy_context_enabled() into supp/notsupp versions
Date: Fri,  5 Jan 2018 10:44:56 -0800	[thread overview]
Message-ID: <20180105184502.48473-6-ebiggers3@gmail.com> (raw)
In-Reply-To: <20180105184502.48473-1-ebiggers3@gmail.com>

From: Eric Biggers <ebiggers@google.com>

fscrypt_dummy_context_enabled() accesses ->s_cop, which now is only set
when the filesystem is built with encryption support.  This didn't
actually matter because no filesystems called it.  However, it will
start being used soon, so fix it by moving it from fscrypt.h to
fscrypt_supp.h and stubbing it out in fscrypt_notsupp.h.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 include/linux/fscrypt.h         | 8 --------
 include/linux/fscrypt_notsupp.h | 5 +++++
 include/linux/fscrypt_supp.h    | 6 ++++++
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 0f94d087a6d1..b671a4eef47f 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -75,14 +75,6 @@ struct fscrypt_operations {
 /* Maximum value for the third parameter of fscrypt_operations.set_context(). */
 #define FSCRYPT_SET_CONTEXT_MAX_SIZE	28
 
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
-	if (inode->i_sb->s_cop->dummy_context &&
-				inode->i_sb->s_cop->dummy_context(inode))
-		return true;
-	return false;
-}
-
 static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
 					u32 filenames_mode)
 {
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h
index 812dc701a5b3..81e02201b215 100644
--- a/include/linux/fscrypt_notsupp.h
+++ b/include/linux/fscrypt_notsupp.h
@@ -19,6 +19,11 @@ static inline bool fscrypt_has_encryption_key(const struct inode *inode)
 	return false;
 }
 
+static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
+{
+	return false;
+}
+
 /* crypto.c */
 static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode,
 						  gfp_t gfp_flags)
diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h
index fd6ee089ced0..e7dfa2974906 100644
--- a/include/linux/fscrypt_supp.h
+++ b/include/linux/fscrypt_supp.h
@@ -31,6 +31,12 @@ static inline bool fscrypt_has_encryption_key(const struct inode *inode)
 	return (inode->i_crypt_info != NULL);
 }
 
+static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
+{
+	return inode->i_sb->s_cop->dummy_context &&
+		inode->i_sb->s_cop->dummy_context(inode);
+}
+
 /* crypto.c */
 extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t);
 extern void fscrypt_release_ctx(struct fscrypt_ctx *);
-- 
2.16.0.rc0.223.g4a4ac83678-goog

WARNING: multiple messages have this Message-ID (diff)
From: Eric Biggers <ebiggers3@gmail.com>
To: linux-fscrypt@vger.kernel.org, "Theodore Y . Ts'o" <tytso@mit.edu>
Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
	linux-mtd@lists.infradead.org, Eric Biggers <ebiggers@google.com>,
	linux-f2fs-devel@lists.sourceforge.net
Subject: [PATCH v2 05/11] fscrypt: split fscrypt_dummy_context_enabled() into supp/notsupp versions
Date: Fri,  5 Jan 2018 10:44:56 -0800	[thread overview]
Message-ID: <20180105184502.48473-6-ebiggers3@gmail.com> (raw)
In-Reply-To: <20180105184502.48473-1-ebiggers3@gmail.com>

From: Eric Biggers <ebiggers@google.com>

fscrypt_dummy_context_enabled() accesses ->s_cop, which now is only set
when the filesystem is built with encryption support.  This didn't
actually matter because no filesystems called it.  However, it will
start being used soon, so fix it by moving it from fscrypt.h to
fscrypt_supp.h and stubbing it out in fscrypt_notsupp.h.

Signed-off-by: Eric Biggers <ebiggers@google.com>
---
 include/linux/fscrypt.h         | 8 --------
 include/linux/fscrypt_notsupp.h | 5 +++++
 include/linux/fscrypt_supp.h    | 6 ++++++
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 0f94d087a6d1..b671a4eef47f 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -75,14 +75,6 @@ struct fscrypt_operations {
 /* Maximum value for the third parameter of fscrypt_operations.set_context(). */
 #define FSCRYPT_SET_CONTEXT_MAX_SIZE	28
 
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
-	if (inode->i_sb->s_cop->dummy_context &&
-				inode->i_sb->s_cop->dummy_context(inode))
-		return true;
-	return false;
-}
-
 static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
 					u32 filenames_mode)
 {
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h
index 812dc701a5b3..81e02201b215 100644
--- a/include/linux/fscrypt_notsupp.h
+++ b/include/linux/fscrypt_notsupp.h
@@ -19,6 +19,11 @@ static inline bool fscrypt_has_encryption_key(const struct inode *inode)
 	return false;
 }
 
+static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
+{
+	return false;
+}
+
 /* crypto.c */
 static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode,
 						  gfp_t gfp_flags)
diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h
index fd6ee089ced0..e7dfa2974906 100644
--- a/include/linux/fscrypt_supp.h
+++ b/include/linux/fscrypt_supp.h
@@ -31,6 +31,12 @@ static inline bool fscrypt_has_encryption_key(const struct inode *inode)
 	return (inode->i_crypt_info != NULL);
 }
 
+static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
+{
+	return inode->i_sb->s_cop->dummy_context &&
+		inode->i_sb->s_cop->dummy_context(inode);
+}
+
 /* crypto.c */
 extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t);
 extern void fscrypt_release_ctx(struct fscrypt_ctx *);
-- 
2.16.0.rc0.223.g4a4ac83678-goog


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  parent reply	other threads:[~2018-01-05 18:44 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-05 18:44 [PATCH v2 00/11] fscrypt: symlink helpers and fscrypt.h cleanup Eric Biggers
2018-01-05 18:44 ` Eric Biggers
2018-01-05 18:44 ` [PATCH v2 01/11] fscrypt: move fscrypt_has_encryption_key() to supp/notsupp headers Eric Biggers
2018-01-05 18:44   ` Eric Biggers
2018-01-05 18:44 ` [PATCH v2 02/11] fscrypt: move fscrypt_control_page() " Eric Biggers
2018-01-05 18:44 ` [PATCH v2 03/11] fscrypt: move fscrypt_info_cachep declaration to fscrypt_private.h Eric Biggers
2018-01-05 18:44   ` Eric Biggers
2018-01-05 18:44 ` [PATCH v2 04/11] fscrypt: move fscrypt_ctx declaration to fscrypt_supp.h Eric Biggers
2018-01-05 18:44   ` Eric Biggers
2018-01-05 18:44 ` Eric Biggers [this message]
2018-01-05 18:44   ` [PATCH v2 05/11] fscrypt: split fscrypt_dummy_context_enabled() into supp/notsupp versions Eric Biggers
2018-01-05 20:40   ` Jaegeuk Kim
2018-01-05 21:18     ` Eric Biggers
2018-01-05 21:18       ` Eric Biggers
2018-01-05 21:36       ` Jaegeuk Kim
2018-01-05 22:01         ` Eric Biggers
2018-01-06  0:39           ` Jaegeuk Kim
2018-01-06  2:49             ` Theodore Ts'o
2018-01-06  2:49               ` Theodore Ts'o
2018-01-05 18:44 ` [PATCH v2 06/11] fscrypt: move fscrypt_operations declaration to fscrypt_supp.h Eric Biggers
2018-01-05 18:44 ` [PATCH v2 07/11] fscrypt: move fscrypt_valid_enc_modes() to fscrypt_private.h Eric Biggers
2018-01-05 18:44   ` Eric Biggers
2018-01-05 18:44 ` [PATCH v2 08/11] fscrypt: move fscrypt_is_dot_dotdot() to fs/crypto/fname.c Eric Biggers
2018-01-05 18:44   ` Eric Biggers
2018-01-05 18:45 ` [PATCH v2 09/11] fscrypt: trim down fscrypt.h includes Eric Biggers
2018-01-05 18:45   ` Eric Biggers
2018-01-05 18:45 ` [PATCH v2 10/11] fscrypt: new helper functions for ->symlink() Eric Biggers
2018-01-05 18:45   ` Eric Biggers
2018-01-05 18:45 ` [PATCH v2 11/11] fscrypt: new helper function - fscrypt_get_symlink() Eric Biggers
2018-01-12  4:33 ` [PATCH v2 00/11] fscrypt: symlink helpers and fscrypt.h cleanup Theodore Ts'o
2018-01-12  4:33   ` Theodore Ts'o
2018-01-16 23:46   ` Jaegeuk Kim

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