*/
/*
* This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef __LIBCFS_LIBCFS_H__
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/workqueue.h>
+#include <linux/sched.h>
+#ifdef HAVE_SCHED_HEADERS
+#include <linux/sched/signal.h>
+#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>
#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 "0.5.0"
-
-#define PO2_ROUNDUP_TYPED(x, po2, type) (-(-(type)(x) & -(type)(po2)))
-#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
+#define LIBCFS_VERSION "0.7.1"
/* Sparse annotations */
#if !defined(__must_hold)
# 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 */
#define LNET_ACCEPTOR_MIN_RESERVED_PORT 512
return notifier_from_errno(err) | NOTIFY_STOP_MASK;
}
-/*
- * Defined by platform
- */
-int unshare_fs_struct(void);
-sigset_t cfs_block_allsigs(void);
-sigset_t cfs_block_sigs(unsigned long sigs);
-sigset_t cfs_block_sigsinv(unsigned long sigs);
-void cfs_restore_sigs(sigset_t);
-void cfs_clear_sigpending(void);
-
-/*
- * Random number handling
- */
-
-/* returns a random 32-bit integer */
-unsigned int cfs_rand(void);
-/* seed the generator */
-void cfs_srand(unsigned int, unsigned int);
-void cfs_get_random_bytes(void *buf, int size);
-
int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
-int libcfs_ioctl(unsigned long cmd, void __user *uparam);
-
-/* container_of depends on "likely" which is defined in libcfs_private.h */
-static inline void *__container_of(const void *ptr, unsigned long shift)
-{
- if (unlikely(IS_ERR(ptr) || ptr == NULL))
- return ERR_CAST(ptr);
- else
- return (char *)ptr - shift;
-}
-
-#define container_of0(ptr, type, member) \
- ((type *)__container_of((ptr), offsetof(type, member)))
extern struct workqueue_struct *cfs_rehash_wq;
-struct lnet_debugfs_symlink_def {
- const char *name;
- const char *target;
-};
-
void lnet_insert_debugfs(struct ctl_table *table);
void lnet_remove_debugfs(struct ctl_table *table);
void __user *buffer, size_t *lenp,
int (*handler)(void *data, int write, loff_t pos,
void __user *buffer, int len));
+int debugfs_doint(struct ctl_table *table, int write,
+ void __user *buffer, size_t *lenp, loff_t *ppos);
+
+/*
+ * 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 { \
+ int counter = 4; \
+ might_sleep(); \
+ if (condition) \
+ break; \
+ ___wait_var_event(var, condition, TASK_UNINTERRUPTIBLE, 0, 0, \
+ if (schedule_timeout(cfs_time_seconds(1)) == 0)\
+ CDEBUG(is_power_of_2(counter++) ? \
+ D_WARNING : D_NET, \
+ format, ## __VA_ARGS__) \
+ ); \
+} 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_first rb_first_cached
+#define INTERVAL_TREE_ROOT RB_ROOT_CACHED
+#else
+#define interval_tree_root rb_root
+#define interval_tree_first rb_first
+#define INTERVAL_TREE_ROOT RB_ROOT
+#endif /* HAVE_INTERVAL_TREE_CACHED */
#endif /* _LIBCFS_LIBCFS_H_ */