* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, Whamcloud, Inc.
+ * Copyright (c) 2011, 2012, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#define ARRAY_SIZE(a) ((sizeof (a)) / (sizeof ((a)[0])))
#endif
+#if !defined(swap)
+#define swap(x,y) do { typeof(x) z = x; x = y; y = z; } while (0)
+#endif
+
#if !defined(container_of)
/* given a pointer @ptr to the field @member embedded into type (usually
* struct) @type, return pointer to the embedding instance of @type. */
/*
+ * - * atomic
+ */
+
+typedef atomic_t cfs_atomic_t;
+
+#define cfs_atomic_read(atom) atomic_read(atom)
+#define cfs_atomic_inc(atom) atomic_inc(atom)
+#define cfs_atomic_inc_and_test(atom) atomic_inc_and_test(atom)
+#define cfs_atomic_inc_return(atom) atomic_inc_return(atom)
+#define cfs_atomic_inc_not_zero(atom) atomic_inc_not_zero(atom)
+#define cfs_atomic_add_unless(atom, a, u) atomic_add_unless(atom, a, u)
+#define cfs_atomic_dec(atom) atomic_dec(atom)
+#define cfs_atomic_dec_and_test(atom) atomic_dec_and_test(atom)
+#define cfs_atomic_dec_and_lock(atom, lock) atomic_dec_and_lock(atom, lock)
+#define cfs_atomic_dec_return(atom) atomic_dec_return(atom)
+#define cfs_atomic_set(atom, value) atomic_set(atom, value)
+#define cfs_atomic_add(value, atom) atomic_add(value, atom)
+#define cfs_atomic_add_return(value, atom) atomic_add_return(value, atom)
+#define cfs_atomic_sub(value, atom) atomic_sub(value, atom)
+#define cfs_atomic_sub_and_test(value, atom) atomic_sub_and_test(value, atom)
+#define cfs_atomic_sub_return(value, atom) atomic_sub_return(value, atom)
+#define cfs_atomic_cmpxchg(atom, old, nv) atomic_cmpxchg(atom, old, nv)
+#define CFS_ATOMIC_INIT(i) ATOMIC_INIT(i)
+
+/*
* Some (nomina odiosa sunt) platforms define NULL as naked 0. This confuses
* Lustre RETURN(NULL) macro.
*/
/* Dump a debug log */
void lc_watchdog_dumplog(pid_t pid, void *data);
-#endif /* __KERNEL__ */
+#else /* !__KERNEL__ */
+#include <unistd.h>
+#ifndef PAGE_SIZE
+#define PAGE_SIZE sysconf(_SC_PAGESIZE)
+#endif
+#endif /* !__KERNEL__ */
/* need both kernel and user-land acceptor */
#define LNET_ACCEPTOR_MIN_RESERVED_PORT 512
/*
* libcfs pseudo device operations
*
- * struct cfs_psdev_t and
- * cfs_psdev_register() and
- * cfs_psdev_deregister() are declared in
+ * struct struct miscdevice and
+ * misc_register() and
+ * misc_deregister() are declared in
* libcfs/<os>/<os>-prim.h
*
* It's just draft now.
};
/*
- * Universal memory allocator API
- */
-enum cfs_alloc_flags {
- /* allocation is not allowed to block */
- CFS_ALLOC_ATOMIC = 0x1,
- /* allocation is allowed to block */
- CFS_ALLOC_WAIT = 0x2,
- /* allocation should return zeroed memory */
- CFS_ALLOC_ZERO = 0x4,
- /* allocation is allowed to call file-system code to free/clean
- * memory */
- CFS_ALLOC_FS = 0x8,
- /* allocation is allowed to do io to free/clean memory */
- CFS_ALLOC_IO = 0x10,
- /* don't report allocation failure to the console */
- CFS_ALLOC_NOWARN = 0x20,
- /* standard allocator flag combination */
- CFS_ALLOC_STD = CFS_ALLOC_FS | CFS_ALLOC_IO,
- CFS_ALLOC_USER = CFS_ALLOC_WAIT | CFS_ALLOC_FS | CFS_ALLOC_IO,
-};
-
-/* flags for cfs_page_alloc() in addition to enum cfs_alloc_flags */
-enum cfs_alloc_page_flags {
- /* allow to return page beyond KVM. It has to be mapped into KVM by
- * cfs_page_map(); */
- CFS_ALLOC_HIGH = 0x40,
- CFS_ALLOC_HIGHUSER = CFS_ALLOC_WAIT | CFS_ALLOC_FS | CFS_ALLOC_IO | CFS_ALLOC_HIGH,
-};
-
-/*
* Drop into debugger, if possible. Implementation is provided by platform.
*/
/*
* Defined by platform
*/
-void cfs_daemonize(char *str);
-int cfs_daemonize_ctxt(char *str);
-cfs_sigset_t cfs_get_blocked_sigs(void);
-cfs_sigset_t cfs_block_allsigs(void);
-cfs_sigset_t cfs_block_sigs(cfs_sigset_t bits);
-cfs_sigset_t cfs_block_sigsinv(unsigned long sigs);
-void cfs_restore_sigs(cfs_sigset_t);
+int unshare_fs_struct(void);
+sigset_t cfs_get_blocked_sigs(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);
int cfs_signal_pending(void);
void cfs_clear_sigpending(void);
-/*
- * XXX Liang:
- * these macros should be removed in the future,
- * we keep them just for keeping libcfs compatible
- * with other branches.
- */
-#define libcfs_daemonize(s) cfs_daemonize(s)
-#define cfs_sigmask_lock(f) do { f= 0; } while (0)
-#define cfs_sigmask_unlock(f) do { f= 0; } while (0)
-
int convert_server_error(__u64 ecode);
int convert_client_oflag(int cflag, int *result);
void cfs_srand(unsigned int, unsigned int);
void cfs_get_random_bytes(void *buf, int size);
+#include <libcfs/err.h>
#include <libcfs/libcfs_debug.h>
+#include <libcfs/libcfs_cpu.h>
#include <libcfs/libcfs_private.h>
#include <libcfs/libcfs_ioctl.h>
#include <libcfs/libcfs_prim.h>
#include <libcfs/libcfs_kernelcomm.h>
#include <libcfs/libcfs_workitem.h>
#include <libcfs/libcfs_hash.h>
+#include <libcfs/libcfs_heap.h>
#include <libcfs/libcfs_fail.h>
#include <libcfs/params_tree.h>
+#include <libcfs/libcfs_crypto.h>
/* container_of depends on "likely" which is defined in libcfs_private.h */
-static inline void *__container_of(void *ptr, unsigned long shift)
+static inline void *__container_of(const void *ptr, unsigned long shift)
{
- if (unlikely(IS_ERR(ptr) || ptr == NULL))
- return ptr;
- else
- return (char *)ptr - 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((void *)(ptr), offsetof(type, member)))
-
-#define SET_BUT_UNUSED(a) do { } while(sizeof(a) - sizeof(a))
+#define container_of0(ptr, type, member) \
+ ((type *)__container_of((ptr), offsetof(type, member)))
#define _LIBCFS_H
git://git.whamcloud.com / fs / lustre-release.git / blobdiff