diff --git a/libc/kernel/common/linux/quota.h b/libc/kernel/common/linux/quota.h
new file mode 100644
index 0000000..054af5a
--- /dev/null
+++ b/libc/kernel/common/linux/quota.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_QUOTA_
+#define _LINUX_QUOTA_
+
+#include <linux/errno.h>
+#include <linux/types.h>
+
+#define __DQUOT_VERSION__ "dquot_6.5.1"
+#define __DQUOT_NUM_VERSION__ 6*10000+5*100+1
+
+typedef __kernel_uid32_t qid_t;
+typedef __u64 qsize_t;
+
+#define QUOTABLOCK_BITS 10
+#define QUOTABLOCK_SIZE (1 << QUOTABLOCK_BITS)
+
+#define qb2kb(x) ((x) << (QUOTABLOCK_BITS-10))
+#define kb2qb(x) ((x) >> (QUOTABLOCK_BITS-10))
+#define toqb(x) (((x) + QUOTABLOCK_SIZE - 1) >> QUOTABLOCK_BITS)
+
+#define MAXQUOTAS 2
+#define USRQUOTA 0  
+#define GRPQUOTA 1  
+
+#define INITQFNAMES {   "user",     "group",     "undefined",  };
+
+#define SUBCMDMASK 0x00ff
+#define SUBCMDSHIFT 8
+#define QCMD(cmd, type) (((cmd) << SUBCMDSHIFT) | ((type) & SUBCMDMASK))
+
+#define Q_SYNC 0x800001  
+#define Q_QUOTAON 0x800002  
+#define Q_QUOTAOFF 0x800003  
+#define Q_GETFMT 0x800004  
+#define Q_GETINFO 0x800005  
+#define Q_SETINFO 0x800006  
+#define Q_GETQUOTA 0x800007  
+#define Q_SETQUOTA 0x800008  
+
+#define QIF_BLIMITS 1
+#define QIF_SPACE 2
+#define QIF_ILIMITS 4
+#define QIF_INODES 8
+#define QIF_BTIME 16
+#define QIF_ITIME 32
+#define QIF_LIMITS (QIF_BLIMITS | QIF_ILIMITS)
+#define QIF_USAGE (QIF_SPACE | QIF_INODES)
+#define QIF_TIMES (QIF_BTIME | QIF_ITIME)
+#define QIF_ALL (QIF_LIMITS | QIF_USAGE | QIF_TIMES)
+
+struct if_dqblk {
+ __u64 dqb_bhardlimit;
+ __u64 dqb_bsoftlimit;
+ __u64 dqb_curspace;
+ __u64 dqb_ihardlimit;
+ __u64 dqb_isoftlimit;
+ __u64 dqb_curinodes;
+ __u64 dqb_btime;
+ __u64 dqb_itime;
+ __u32 dqb_valid;
+};
+
+#define IIF_BGRACE 1
+#define IIF_IGRACE 2
+#define IIF_FLAGS 4
+#define IIF_ALL (IIF_BGRACE | IIF_IGRACE | IIF_FLAGS)
+
+struct if_dqinfo {
+ __u64 dqi_bgrace;
+ __u64 dqi_igrace;
+ __u32 dqi_flags;
+ __u32 dqi_valid;
+};
+
+#include <sys/cdefs.h>
+
+#endif