LU-11085 nodemap: switch interval tree to in-kernel impl.

[fs/lustre-release.git] / libcfs / include / libcfs / libcfs.h

diff --git a/libcfs/include/libcfs/libcfs.h b/libcfs/include/libcfs/libcfs.h
index 9b7d3f2..5fa92df 100644 (file)
--- a/libcfs/include/libcfs/libcfs.h
+++ b/libcfs/include/libcfs/libcfs.h
@@ -42,6 +42,7 @@
 #endif
 
 #include <libcfs/linux/linux-misc.h>
+#include <libcfs/linux/linux-mem.h>
 #include <libcfs/linux/linux-time.h>
 #include <libcfs/linux/linux-wait.h>
 
@@ -50,19 +51,14 @@
 #include <libcfs/libcfs_private.h>
 #include <libcfs/bitmap.h>
 #include <libcfs/libcfs_cpu.h>
-#include <libcfs/libcfs_prim.h>
 #include <libcfs/libcfs_string.h>
 #include <libcfs/libcfs_workitem.h>
 #include <libcfs/libcfs_hash.h>
-#include <libcfs/libcfs_heap.h>
 #include <libcfs/libcfs_fail.h>
 #include "curproc.h"
 
 #define LIBCFS_VERSION "0.7.1"
 
-#define PO2_ROUNDUP_TYPED(x, po2, type) (-(-(type)(x) & -(type)(po2)))
-#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
-
 /* Sparse annotations */
 #if !defined(__must_hold)
 # ifdef __CHECKER__
@@ -72,16 +68,6 @@
 # endif /* !__CHECKER__ */
 #endif /* !__must_hold */
 
-#ifdef HAVE_TOTALRAM_PAGES_AS_FUNC
- #ifndef cfs_totalram_pages
-  #define cfs_totalram_pages() totalram_pages()
- #endif
-#else
- #ifndef cfs_totalram_pages
-  #define cfs_totalram_pages() totalram_pages
- #endif
-#endif
-
 typedef s32 timeout_t;
 
 /* need both kernel and user-land acceptor */
@@ -96,15 +82,8 @@ static inline int notifier_from_ioctl_errno(int err)
        return notifier_from_errno(err) | NOTIFY_STOP_MASK;
 }
 
-/*
- * Defined by platform
- */
-int unshare_fs_struct(void);
-
 int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
 
-#define container_of0(ptr, type, member) container_of_safe(ptr, type, member)
-
 extern struct workqueue_struct *cfs_rehash_wq;
 
 struct lnet_debugfs_symlink_def {
@@ -121,6 +100,16 @@ int lprocfs_call_handler(void *data, int write, loff_t *ppos,
                         int (*handler)(void *data, int write, loff_t pos,
                                        void __user *buffer, int len));
 
+/*
+ * Memory
+ */
+#if BITS_PER_LONG == 32
+/* limit to lowmem on 32-bit systems */
+#define NUM_CACHEPAGES \
+       min(cfs_totalram_pages(), 1UL << (30 - PAGE_SHIFT) * 3 / 4)
+#else
+#define NUM_CACHEPAGES cfs_totalram_pages()
+#endif
 
 #define wait_var_event_warning(var, condition, format, ...)            \
 do {                                                                   \
@@ -136,4 +125,17 @@ do {                                                                       \
                );                                                      \
 } while (0)
 
+/* atomic-context safe vfree */
+void libcfs_vfree_atomic(const void *addr);
+
+/* interval tree */
+
+#ifdef HAVE_INTERVAL_TREE_CACHED
+#define interval_tree_root rb_root_cached
+#define INTERVAL_TREE_ROOT RB_ROOT_CACHED
+#else
+#define interval_tree_root rb_root
+#define INTERVAL_TREE_ROOT RB_ROOT
+#endif /* HAVE_INTERVAL_TREE_CACHED */
+
 #endif /* _LIBCFS_LIBCFS_H_ */