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authorMiklos Szeredi <mszeredi@redhat.com>2021-08-18 22:08:24 +0200
committerMiklos Szeredi <mszeredi@redhat.com>2021-08-18 22:08:24 +0200
commit0cad6246621b5887d5b33fea84219d2a71f2f99a (patch)
tree2b2a42252442e71dec8043c6e20f9d8eb86925b9 /fs/ext2
parent52d5a0c6bd8a89f460243ed937856354f8f253a3 (diff)
downloadlinux-0cad6246621b5887d5b33fea84219d2a71f2f99a.tar.bz2
vfs: add rcu argument to ->get_acl() callback
Add a rcu argument to the ->get_acl() callback to allow get_cached_acl_rcu() to call the ->get_acl() method in the next patch. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/ext2')
-rw-r--r--fs/ext2/acl.c5
-rw-r--r--fs/ext2/acl.h2
2 files changed, 5 insertions, 2 deletions
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index b9a9db98e94b..bf298967c5b8 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -141,13 +141,16 @@ fail:
* inode->i_mutex: don't care
*/
struct posix_acl *
-ext2_get_acl(struct inode *inode, int type)
+ext2_get_acl(struct inode *inode, int type, bool rcu)
{
int name_index;
char *value = NULL;
struct posix_acl *acl;
int retval;
+ if (rcu)
+ return ERR_PTR(-ECHILD);
+
switch (type) {
case ACL_TYPE_ACCESS:
name_index = EXT2_XATTR_INDEX_POSIX_ACL_ACCESS;
diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h
index 917db5f6630a..925ab6287d35 100644
--- a/fs/ext2/acl.h
+++ b/fs/ext2/acl.h
@@ -55,7 +55,7 @@ static inline int ext2_acl_count(size_t size)
#ifdef CONFIG_EXT2_FS_POSIX_ACL
/* acl.c */
-extern struct posix_acl *ext2_get_acl(struct inode *inode, int type);
+extern struct posix_acl *ext2_get_acl(struct inode *inode, int type, bool rcu);
extern int ext2_set_acl(struct user_namespace *mnt_userns, struct inode *inode,
struct posix_acl *acl, int type);
extern int ext2_init_acl (struct inode *, struct inode *);