diff options
| author | Luís Henriques <lhenriques@suse.de> | 2023-03-16 18:14:11 +0000 |
|---|---|---|
| committer | Eric Biggers <ebiggers@google.com> | 2023-03-27 21:15:49 -0700 |
| commit | 6f2656eab290f0dd437cd4b2ec956c3519172d3b (patch) | |
| tree | d3bf73108737fddc91eab34e53995a7db33a5438 /include/linux/fscrypt.h | |
| parent | 9c7fb7f7637496e375cec9f56d7e316fb7dbf6c3 (diff) | |
fscrypt: new helper function - fscrypt_prepare_lookup_partial()
This patch introduces a new helper function which can be used both in
lookups and in atomic_open operations by filesystems that want to handle
filename encryption and no-key dentries themselves.
The reason for this function to be used in atomic open is that this
operation can act as a lookup if handed a dentry that is negative. And in
this case we may need to set DCACHE_NOKEY_NAME.
Signed-off-by: Luís Henriques <lhenriques@suse.de>
Tested-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Xiubo Li <xiubli@redhat.com>
[ebiggers: improved the function comment, and moved the function to just
below __fscrypt_prepare_lookup()]
Link: https://lore.kernel.org/r/20230320220149.21863-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
Diffstat (limited to 'include/linux/fscrypt.h')
| -rw-r--r-- | include/linux/fscrypt.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h index e0a49c3125eb..a69f1302051d 100644 --- a/include/linux/fscrypt.h +++ b/include/linux/fscrypt.h @@ -359,6 +359,7 @@ int __fscrypt_prepare_rename(struct inode *old_dir, struct dentry *old_dentry, unsigned int flags); int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry, struct fscrypt_name *fname); +int fscrypt_prepare_lookup_partial(struct inode *dir, struct dentry *dentry); int __fscrypt_prepare_readdir(struct inode *dir); int __fscrypt_prepare_setattr(struct dentry *dentry, struct iattr *attr); int fscrypt_prepare_setflags(struct inode *inode, @@ -673,6 +674,12 @@ static inline int __fscrypt_prepare_lookup(struct inode *dir, return -EOPNOTSUPP; } +static inline int fscrypt_prepare_lookup_partial(struct inode *dir, + struct dentry *dentry) +{ + return -EOPNOTSUPP; +} + static inline int __fscrypt_prepare_readdir(struct inode *dir) { return -EOPNOTSUPP; |