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fs: take the ACL checks to common code

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Replace the ->check_acl method with a ->get_acl method that simply reads an
ACL from disk after having a cache miss.  This means we can replace the ACL
checking boilerplate code with a single implementation in namei.c.

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2011-07-23 17:37:31 +02:00 • committed by Al Viro
commit 4e34e719e4
52 changed files with 92 additions and 294 deletions
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14
fs/9p/acl.c
View file

@ -96,7 +96,7 @@ static struct posix_acl *v9fs_get_cached_acl(struct inode *inode, int type)
return acl;
}
int v9fs_check_acl(struct inode *inode, int mask)
struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type)
{
struct posix_acl *acl;
struct v9fs_session_info *v9ses;
@ -108,18 +108,10 @@ int v9fs_check_acl(struct inode *inode, int mask)
* On access = client and acl = on mode get the acl
* values from the server
*/
return -EAGAIN;
return NULL;
}
acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
return v9fs_get_cached_acl(inode, type);
if (IS_ERR(acl))
return PTR_ERR(acl);
if (acl) {
int error = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl);
return error;
}
return -EAGAIN;
}
static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)

4
fs/9p/acl.h
View file

@ -16,14 +16,14 @@
#ifdef CONFIG_9P_FS_POSIX_ACL
extern int v9fs_get_acl(struct inode *, struct p9_fid *);
extern int v9fs_check_acl(struct inode *inode, int mask);
extern struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type);
extern int v9fs_acl_chmod(struct dentry *);
extern int v9fs_set_create_acl(struct dentry *,
struct posix_acl **, struct posix_acl **);
extern int v9fs_acl_mode(struct inode *dir, mode_t *modep,
struct posix_acl **dpacl, struct posix_acl **pacl);
#else
#define v9fs_check_acl NULL
#define v9fs_iop_get_acl NULL
static inline int v9fs_get_acl(struct inode *inode, struct p9_fid *fid)
{
return 0;

4
fs/9p/vfs_inode_dotl.c
View file

@ -872,7 +872,7 @@ const struct inode_operations v9fs_dir_inode_operations_dotl = {
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = v9fs_listxattr,
.check_acl = v9fs_check_acl,
.get_acl = v9fs_iop_get_acl,
};
const struct inode_operations v9fs_file_inode_operations_dotl = {
@ -882,7 +882,7 @@ const struct inode_operations v9fs_file_inode_operations_dotl = {
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = v9fs_listxattr,
.check_acl = v9fs_check_acl,
.get_acl = v9fs_iop_get_acl,
};
const struct inode_operations v9fs_symlink_inode_operations_dotl = {