[PATCH 2/5] fscrypt: Export fscrypt_d_revalidate

[Daniel Rosenberg <drosen@google.com>]

This is in preparation for shifting the responsibility of setting the
dentry_operations to the filesystem, allowing it to maintain its own
operations.

Signed-off-by: Daniel Rosenberg <drosen@google.com>
---
 fs/crypto/fname.c       | 3 ++-
 include/linux/fscrypt.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index 011830f84d8d..d45db23ff6c4 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -541,7 +541,7 @@ EXPORT_SYMBOL_GPL(fscrypt_fname_siphash);
  * Validate dentries in encrypted directories to make sure we aren't potentially
  * caching stale dentries after a key has been added.
  */
-static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
+int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct dentry *dir;
 	int err;
@@ -580,6 +580,7 @@ static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
 
 	return valid;
 }
+EXPORT_SYMBOL_GPL(fscrypt_d_revalidate);
 
 const struct dentry_operations fscrypt_d_ops = {
 	.d_revalidate = fscrypt_d_revalidate,
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
index 991ff8575d0e..265b1e9119dc 100644
--- a/include/linux/fscrypt.h
+++ b/include/linux/fscrypt.h
@@ -207,6 +207,7 @@ int fscrypt_fname_disk_to_usr(const struct inode *inode,
 bool fscrypt_match_name(const struct fscrypt_name *fname,
 			const u8 *de_name, u32 de_name_len);
 u64 fscrypt_fname_siphash(const struct inode *dir, const struct qstr *name);
+extern int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags);
 
 /* bio.c */
 void fscrypt_decrypt_bio(struct bio *bio);
-- 
2.28.0.681.g6f77f65b4e-goog