#ifndef _VX_DEBUG_H
#define _VX_DEBUG_H
+#ifndef CONFIG_VSERVER
+#warning config options missing
+#endif
#define VXD_CBIT(n,m) (vx_debug_ ## n & (1 << (m)))
#define VXD_CMIN(n,m) (vx_debug_ ## n > (m))
#define VXD_QUAD(v) VXD_QPOS(v,0), VXD_QPOS(v,1), \
VXD_QPOS(v,2), VXD_QPOS(v,3)
-// #define VXD_HERE __FILE__, __LINE__
-
#define __FUNC__ __func__
#define VX_LOGLEVEL "vxD: "
+#define VX_WARNLEVEL KERN_WARNING "vxW: "
#define vxdprintk(c,f,x...) \
do { \
if (c) \
- printk(VX_LOGLEVEL f "\n", x); \
+ printk(VX_LOGLEVEL f "\n" , ##x); \
} while (0)
#define vxlprintk(c,f,x...) \
printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \
} while (0)
-#else
+
+#define vxwprintk(c,f,x...) \
+ do { \
+ if (c) \
+ printk(VX_WARNLEVEL f "\n" , ##x); \
+ } while (0)
+
+
+#define vxd_path(d,m) \
+ ({ static char _buffer[PATH_MAX]; \
+ d_path((d), (m), _buffer, sizeof(_buffer)); })
+
+#else /* CONFIG_VSERVER_DEBUG */
#define vx_debug_switch 0
#define vx_debug_xid 0
#define vxdprintk(x...) do { } while (0)
#define vxlprintk(x...) do { } while (0)
#define vxfprintk(x...) do { } while (0)
+#define vxwprintk(x...) do { } while (0)
-#endif
+#define vxd_path "<none>"
+
+#endif /* CONFIG_VSERVER_DEBUG */
+
+
+/* history stuff */
+
+#ifdef CONFIG_VSERVER_HISTORY
+
+
+extern unsigned volatile int vxh_active;
+
+struct _vxhe_vxi {
+ struct vx_info *ptr;
+ unsigned xid;
+ unsigned usecnt;
+ unsigned tasks;
+};
+
+struct _vxhe_set_clr {
+ void *data;
+};
+
+struct _vxhe_loc_lookup {
+ unsigned arg;
+};
+
+enum {
+ VXH_UNUSED=0,
+ VXH_THROW_OOPS=1,
+
+ VXH_GET_VX_INFO,
+ VXH_PUT_VX_INFO,
+ VXH_INIT_VX_INFO,
+ VXH_SET_VX_INFO,
+ VXH_CLR_VX_INFO,
+ VXH_CLAIM_VX_INFO,
+ VXH_RELEASE_VX_INFO,
+ VXH_ALLOC_VX_INFO,
+ VXH_DEALLOC_VX_INFO,
+ VXH_HASH_VX_INFO,
+ VXH_UNHASH_VX_INFO,
+ VXH_LOC_VX_INFO,
+ VXH_LOOKUP_VX_INFO,
+ VXH_CREATE_VX_INFO,
+};
+
+struct _vx_hist_entry {
+ void *loc;
+ unsigned short seq;
+ unsigned short type;
+ struct _vxhe_vxi vxi;
+ union {
+ struct _vxhe_set_clr sc;
+ struct _vxhe_loc_lookup ll;
+ };
+};
+
+struct _vx_hist_entry *vxh_advance(void *loc);
+
+#define VXH_HERE() \
+ ({ __label__ here; \
+ here:; \
+ &&here; })
+
+
+
+static inline void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi)
+{
+ entry->vxi.ptr = vxi;
+ if (vxi) {
+ entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt);
+ entry->vxi.tasks = atomic_read(&vxi->vx_tasks);
+ entry->vxi.xid = vxi->vx_id;
+ }
+}
+
+static inline void vxh_throw_oops(void)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ entry->type = VXH_THROW_OOPS;
+ preempt_enable();
+
+ /* prevent further acquisition */
+ vxh_active = 0;
+}
+
+static inline void vxh_get_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_GET_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_put_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_PUT_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_init_vx_info(struct vx_info *vxi, void *data)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->sc.data = data;
+ entry->type = VXH_INIT_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_set_vx_info(struct vx_info *vxi, void *data)
+{
+ struct _vx_hist_entry *entry;
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->sc.data = data;
+ entry->type = VXH_SET_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_clr_vx_info(struct vx_info *vxi, void *data)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->sc.data = data;
+ entry->type = VXH_CLR_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_claim_vx_info(struct vx_info *vxi, void *data)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->sc.data = data;
+ entry->type = VXH_CLAIM_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_release_vx_info(struct vx_info *vxi, void *data)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->sc.data = data;
+ entry->type = VXH_RELEASE_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_alloc_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_ALLOC_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_dealloc_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_DEALLOC_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_hash_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_HASH_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_unhash_vx_info(struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->type = VXH_UNHASH_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_loc_vx_info(unsigned arg, struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->ll.arg = arg;
+ entry->type = VXH_LOC_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_lookup_vx_info(unsigned arg, struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->ll.arg = arg;
+ entry->type = VXH_LOOKUP_VX_INFO;
+ preempt_enable();
+}
+
+static inline void vxh_create_vx_info(unsigned arg, struct vx_info *vxi)
+{
+ struct _vx_hist_entry *entry;
+
+ preempt_disable();
+ entry = vxh_advance(VXH_HERE());
+ __vxh_copy_vxi(entry, vxi);
+ entry->ll.arg = arg;
+ entry->type = VXH_CREATE_VX_INFO;
+ preempt_enable();
+}
+
+
+extern void vxh_dump_history(void);
+
+#else /* CONFIG_VSERVER_HISTORY */
+
+#define vxh_throw_oops() do { } while (0)
+
+#define vxh_get_vx_info(v) do { } while (0)
+#define vxh_put_vx_info(v) do { } while (0)
+
+#define vxh_init_vx_info(v,d) do { } while (0)
+#define vxh_set_vx_info(v,d) do { } while (0)
+#define vxh_clr_vx_info(v,d) do { } while (0)
+
+#define vxh_claim_vx_info(v,d) do { } while (0)
+#define vxh_release_vx_info(v,d) do { } while (0)
+
+#define vxh_alloc_vx_info(v) do { } while (0)
+#define vxh_dealloc_vx_info(v) do { } while (0)
+
+#define vxh_hash_vx_info(v) do { } while (0)
+#define vxh_unhash_vx_info(v) do { } while (0)
+
+#define vxh_loc_vx_info(a,v) do { } while (0)
+#define vxh_lookup_vx_info(a,v) do { } while (0)
+#define vxh_create_vx_info(a,v) do { } while (0)
+
+#define vxh_dump_history() do { } while (0)
+
+
+#endif /* CONFIG_VSERVER_HISTORY */
+
+
+#ifdef CONFIG_VSERVER_DEBUG
+#define vxd_assert_lock(l) assert_spin_locked(l)
+#else
+#define vxd_assert_lock(l) do { } while (0)
+#endif
#endif /* _VX_DEBUG_H */
git://git.onelab.eu / linux-2.6.git / blobdiff