diff options
| author | Christian Brauner <brauner@kernel.org> | 2022-09-22 17:17:13 +0200 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2022-10-20 10:13:29 +0200 |
| commit | 4f353ba4a9f42ad283dc6afdd84dae0b1d294842 (patch) | |
| tree | c62d1aec700285b4cd768a3ca2cbe4b453e1d5ca /include/linux/posix_acl.h | |
| parent | e4cc9163032fed6ff27dd03325ddc54f88863a24 (diff) | |
acl: add vfs_get_acl()
In previous patches we implemented get and set inode operations for all
non-stacking filesystems that support posix acls but didn't yet
implement get and/or set acl inode operations. This specifically
affected cifs and 9p.
Now we can build a posix acl api based solely on get and set inode
operations. We add a new vfs_get_acl() api that can be used to get posix
acls. This finally removes all type unsafety and type conversion issues
explained in detail in [1] that we aim to get rid of.
After we finished building the vfs api we can switch stacking
filesystems to rely on the new posix api and then finally switch the
xattr system calls themselves to rely on the posix acl api.
Link: https://lore.kernel.org/all/20220801145520.1532837-1-brauner@kernel.org [1]
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Diffstat (limited to 'include/linux/posix_acl.h')
| -rw-r--r-- | include/linux/posix_acl.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 316b05c1dc97..86aec1efc80e 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -102,6 +102,8 @@ static inline void cache_no_acl(struct inode *inode) int vfs_set_acl(struct user_namespace *mnt_userns, struct dentry *dentry, const char *acl_name, struct posix_acl *kacl); +struct posix_acl *vfs_get_acl(struct user_namespace *mnt_userns, + struct dentry *dentry, const char *acl_name); #else static inline int posix_acl_chmod(struct user_namespace *mnt_userns, struct dentry *dentry, umode_t mode) @@ -136,6 +138,13 @@ static inline int vfs_set_acl(struct user_namespace *mnt_userns, { return -EOPNOTSUPP; } + +static inline struct posix_acl *vfs_get_acl(struct user_namespace *mnt_userns, + struct dentry *dentry, + const char *acl_name) +{ + return ERR_PTR(-EOPNOTSUPP); +} #endif /* CONFIG_FS_POSIX_ACL */ struct posix_acl *get_inode_acl(struct inode *inode, int type); |