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Commit 060bc66d authored by Tiger Yang's avatar Tiger Yang Committed by Mark Fasheh
Browse files

ocfs2: add ocfs2_acl_chmod 



This function is used to update acl xattrs during file mode changes.

Signed-off-by: default avatarTiger Yang <tiger.yang@oracle.com>
Signed-off-by: default avatarMark Fasheh <mfasheh@suse.com>
parent 23fc2702

fs/ocfs2/acl.c

+27 −0
Original line number Diff line number Diff line
@@ -245,6 +245,33 @@ int ocfs2_check_acl(struct inode *inode, int mask) 
	return -EAGAIN;

}



int ocfs2_acl_chmod(struct inode *inode)

{

	struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);

	struct posix_acl *acl, *clone;

	int ret;



	if (S_ISLNK(inode->i_mode))

		return -EOPNOTSUPP;



	if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))

		return 0;



	acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);

	if (IS_ERR(acl) || !acl)

		return PTR_ERR(acl);

	clone = posix_acl_clone(acl, GFP_KERNEL);

	posix_acl_release(acl);

	if (!clone)

		return -ENOMEM;

	ret = posix_acl_chmod_masq(clone, inode->i_mode);

	if (!ret)

		ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,

				    clone, NULL, NULL);

	posix_acl_release(clone);

	return ret;

}



static size_t ocfs2_xattr_list_acl_access(struct inode *inode,

					  char *list,

					  size_t list_len,

fs/ocfs2/acl.h

+5 −0
Original line number Diff line number Diff line
@@ -29,10 +29,15 @@ struct ocfs2_acl_entry { 
#ifdef CONFIG_OCFS2_FS_POSIX_ACL



extern int ocfs2_check_acl(struct inode *, int);

extern int ocfs2_acl_chmod(struct inode *);



#else /* CONFIG_OCFS2_FS_POSIX_ACL*/



#define ocfs2_check_acl NULL

static inline int ocfs2_acl_chmod(struct inode *inode)

{

	return 0;

}



#endif /* CONFIG_OCFS2_FS_POSIX_ACL*/

fs/ocfs2/file.c

+6 −0
Original line number Diff line number Diff line
@@ -990,6 +990,12 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) 
bail:

	brelse(bh);



	if (!status && attr->ia_valid & ATTR_MODE) {

		status = ocfs2_acl_chmod(inode);

		if (status < 0)

			mlog_errno(status);

	}



	mlog_exit(status);

	return status;

}