added yum-2.6.0-chroot.patch
[util-vserver.git] / util-vserver / kernel / context.h
index 948a068..ed1145e 100644 (file)
 
 #define VX_DYNAMIC_ID  ((uint32_t)-1)          /* id for dynamic context */
 
-#ifdef __KERNEL__
+/* context flags */
 
-#include <linux/utsname.h>
+#define VXF_INFO_LOCK          0x00000001
+#define VXF_INFO_SCHED         0x00000002
+#define VXF_INFO_NPROC         0x00000004
+#define VXF_INFO_PRIVATE       0x00000008
 
-struct _vx_virt {
-       int nr_threads;
-       int nr_running;
-       int max_threads;
-       unsigned long total_forks;
+#define VXF_INFO_INIT          0x00000010
+#define VXF_INFO_HIDE          0x00000020
+#define VXF_INFO_ULIMIT                0x00000040
+#define VXF_INFO_NSPACE                0x00000080
 
-       unsigned int bias_cswtch;
-       long bias_jiffies;
-       long bias_idle;
+#define VXF_SCHED_HARD         0x00000100
+#define VXF_SCHED_PRIO         0x00000200
+#define VXF_SCHED_PAUSE                0x00000400
 
-       struct new_utsname utsname;
-};
+#define VXF_VIRT_MEM           0x00010000
+#define VXF_VIRT_UPTIME                0x00020000
+#define VXF_VIRT_CPU           0x00040000
+#define VXF_VIRT_LOAD          0x00080000
 
+#define VXF_HIDE_MOUNT         0x01000000
+#define VXF_HIDE_NETIF         0x02000000
 
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <asm/atomic.h>
+#define VXF_STATE_SETUP                (1ULL<<32)
+#define VXF_STATE_INIT         (1ULL<<33)
 
-#define        _VX_INFO_DEF_
-#include "limit.h"
-#include "sched.h"
-#undef _VX_INFO_DEF_
+#define VXF_STATE_HELPER       (1ULL<<36)
 
-struct vx_info {
-       struct list_head vx_list;               /* linked list of contexts */
-       xid_t vx_id;                            /* context id */
-       atomic_t vx_refcount;                   /* refcount */
-       struct vx_info *vx_parent;              /* parent context */
+#define VXF_FORK_RSS           (1ULL<<48)
+#define VXF_PROLIFIC           (1ULL<<49)
 
-       struct namespace *vx_namespace;         /* private namespace */
-       struct fs_struct *vx_fs;                /* private namespace fs */
-       uint64_t vx_flags;                      /* VX_INFO_xxx */
-       uint64_t vx_bcaps;                      /* bounding caps (system) */
-       uint64_t vx_ccaps;                      /* context caps (vserver) */
+#define VXF_IGNEG_NICE         (1ULL<<52)
 
-       pid_t vx_initpid;                       /* PID of fake init process */
+#define VXF_ONE_TIME           (0x0003ULL<<32)
 
-       struct _vx_virt virt;                   /* virtual/bias stuff */
-       struct _vx_limit limit;                 /* vserver limits */
-       struct _vx_sched sched;                 /* vserver scheduler */
+#define VXF_INIT_SET           (VXF_STATE_SETUP|VXF_STATE_INIT)
 
-       char vx_name[65];                       /* vserver name */
-};
 
+/* context caps */
 
-extern spinlock_t vxlist_lock;
-extern struct list_head vx_infos;
+#define VXC_CAP_MASK           0x00000000
 
+#define VXC_SET_UTSNAME                0x00000001
+#define VXC_SET_RLIMIT         0x00000002
 
-#define        VX_ADMIN        0x0001
-#define        VX_WATCH        0x0002
-#define VX_DUMMY       0x0008
+#define VXC_RAW_ICMP           0x00000100
+#define VXC_SYSLOG             0x00001000
 
-#define        VX_IDENT        0x0010
-#define        VX_EQUIV        0x0020
-#define        VX_PARENT       0x0040
-#define        VX_CHILD        0x0080
+#define VXC_SECURE_MOUNT       0x00010000
+#define VXC_SECURE_REMOUNT     0x00020000
+#define VXC_BINARY_MOUNT       0x00040000
 
-#define        VX_ARG_MASK     0x00F0
+#define VXC_QUOTA_CTL          0x00100000
 
-#define        VX_DYNAMIC      0x0100
-#define        VX_STATIC       0x0200
 
-#define        VX_ATR_MASK     0x0F00
+/* context state changes */
 
+enum {
+       VSC_STARTUP = 1,
+       VSC_SHUTDOWN,
 
-void free_vx_info(struct vx_info *);
+       VSC_NETUP,
+       VSC_NETDOWN,
+};
 
-extern struct vx_info *find_vx_info(int);
-extern struct vx_info *find_or_create_vx_info(int);
 
-extern int vx_migrate_task(struct task_struct *, struct vx_info *);
+#ifdef __KERNEL__
 
-#endif /* __KERNEL__ */
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/rcupdate.h>
 
-#include "switch.h"
+#include "limit_def.h"
+#include "sched_def.h"
+#include "cvirt_def.h"
 
-/* vinfo commands */
+struct vx_info {
+       struct hlist_node vx_hlist;             /* linked list of contexts */
+       xid_t vx_id;                            /* context id */
+       atomic_t vx_usecnt;                     /* usage count */
+       atomic_t vx_tasks;                      /* tasks count */
+       struct vx_info *vx_parent;              /* parent context */
+       int vx_state;                           /* context state */
 
-#define        VCMD_task_xid           VC_CMD(VINFO, 1, 0)
-#define        VCMD_task_nid           VC_CMD(VINFO, 2, 0)
+       struct namespace *vx_namespace;         /* private namespace */
+       struct fs_struct *vx_fs;                /* private namespace fs */
+       uint64_t vx_flags;                      /* context flags */
+       uint64_t vx_bcaps;                      /* bounding caps (system) */
+       uint64_t vx_ccaps;                      /* context caps (vserver) */
 
-#ifdef __KERNEL__
-extern int vc_task_xid(uint32_t, void *);
+       pid_t vx_initpid;                       /* PID of fake init process */
 
-#endif /* __KERNEL__ */
+       wait_queue_head_t vx_wait;              /* context exit waitqueue */
 
-#define        VCMD_vx_info            VC_CMD(VINFO, 5, 0)
-#define        VCMD_nx_info            VC_CMD(VINFO, 6, 0)
+       struct _vx_limit limit;                 /* vserver limits */
+       struct _vx_sched sched;                 /* vserver scheduler */
+       struct _vx_cvirt cvirt;                 /* virtual/bias stuff */
+       struct _vx_cacct cacct;                 /* context accounting */
 
-struct  vcmd_vx_info_v0 {
-       uint32_t xid;
-       uint32_t initpid;
-       /* more to come */      
+       char vx_name[65];                       /* vserver name */
 };
 
-#ifdef __KERNEL__
-extern int vc_vx_info(uint32_t, void *);
 
-#endif /* __KERNEL__ */
+/* status flags */
 
-#define VCMD_create_context    VC_CMD(VSETUP, 1, 0)
-#define VCMD_migrate_context   VC_CMD(PROCMIG, 1, 0)
+#define VXS_HASHED     0x0001
+#define VXS_PAUSED     0x0010
+#define VXS_ONHOLD     0x0020
+#define VXS_SHUTDOWN   0x0100
+#define VXS_RELEASED   0x8000
 
-#ifdef __KERNEL__
-extern int vc_create_context(uint32_t, void *);
-extern int vc_migrate_context(uint32_t, void *);
+/* check conditions */
 
-#endif /* __KERNEL__ */
+#define VX_ADMIN       0x0001
+#define VX_WATCH       0x0002
+#define VX_HIDE                0x0004
+#define VX_HOSTID      0x0008
 
-#define VCMD_get_flags         VC_CMD(FLAGS, 1, 0)
-#define VCMD_set_flags         VC_CMD(FLAGS, 2, 0)
+#define VX_IDENT       0x0010
+#define VX_EQUIV       0x0020
+#define VX_PARENT      0x0040
+#define VX_CHILD       0x0080
 
-struct  vcmd_ctx_flags_v0 {
-       uint64_t flagword;
-       uint64_t mask;
-};
+#define VX_ARG_MASK    0x00F0
 
-#ifdef __KERNEL__
-extern int vc_get_flags(uint32_t, void *);
-extern int vc_set_flags(uint32_t, void *);
+#define VX_DYNAMIC     0x0100
+#define VX_STATIC      0x0200
 
-#endif /* __KERNEL__ */
+#define VX_ATR_MASK    0x0F00
 
-#define VXF_INFO_LOCK          0x00000001
-#define VXF_INFO_NPROC         0x00000002
-#define VXF_INFO_PRIVATE       0x00000004
-#define VXF_INFO_INIT          0x00000008
-
-#define VXF_INFO_HIDE          0x00000010
-#define VXF_INFO_ULIMIT                0x00000020
-#define VXF_INFO_NSPACE                0x00000040
 
-#define        VXF_SCHED_HARD          0x00000100
-#define        VXF_SCHED_PRIO          0x00000200
-#define        VXF_SCHED_PAUSE         0x00000400
+extern void claim_vx_info(struct vx_info *, struct task_struct *);
+extern void release_vx_info(struct vx_info *, struct task_struct *);
 
-#define VXF_VIRT_MEM           0x00010000
-#define VXF_VIRT_UPTIME                0x00020000
+extern struct vx_info *locate_vx_info(int);
+extern struct vx_info *locate_or_create_vx_info(int);
 
-#define        VXF_STATE_SETUP         (1ULL<<32)
-#define        VXF_STATE_INIT          (1ULL<<33)
+extern int get_xid_list(int, unsigned int *, int);
+extern int xid_is_hashed(xid_t);
 
-#define VCMD_get_ccaps         VC_CMD(FLAGS, 3, 0)
-#define VCMD_set_ccaps         VC_CMD(FLAGS, 4, 0)
+extern int vx_migrate_task(struct task_struct *, struct vx_info *);
 
-struct  vcmd_ctx_caps_v0 {
-       uint64_t bcaps;
-       uint64_t ccaps;
-       uint64_t cmask;
-};
+extern long vs_state_change(struct vx_info *, unsigned int);
 
-#ifdef __KERNEL__
-extern int vc_get_ccaps(uint32_t, void *);
-extern int vc_set_ccaps(uint32_t, void *);
 
 #endif /* __KERNEL__ */
-
-#define VXC_SET_UTSNAME                0x00000001
-#define VXC_SET_RLIMIT         0x00000002
-
-#define VXC_ICMP_PING          0x00000100
-
-#define VXC_SECURE_MOUNT       0x00010000
-
-
+#else  /* _VX_CONTEXT_H */
+#warning duplicate inclusion
 #endif /* _VX_CONTEXT_H */