#include <libcfs/linux/libcfs.h>
#elif defined(__APPLE__)
#include <libcfs/darwin/libcfs.h>
+#elif defined(__WINNT__)
+#include <libcfs/winnt/libcfs.h>
#else
#error Unsupported operating system.
#endif
#include <stdio.h>
#endif
-#define PORTAL_DEBUG
+#define LIBCFS_DEBUG
#ifndef offsetof
# define offsetof(typ,memb) ((unsigned long)((char *)&(((typ *)0)->memb)))
#endif
+/* cardinality of array */
+#define sizeof_array(a) ((sizeof (a)) / (sizeof ((a)[0])))
+
+#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. */
+#define container_of(ptr, type, member) \
+ ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+#endif
+
+#define container_of0(ptr, type, member) \
+({ \
+ typeof(ptr) __ptr = (ptr); \
+ __ptr ? container_of(__ptr, type, member) : NULL; \
+})
+
+/*
+ * true iff @i is power-of-2
+ */
+#define IS_PO2(i) \
+({ \
+ typeof(i) __i; \
+ \
+ __i = (i); \
+ !(__i & (__i - 1)); \
+})
+
#define LOWEST_BIT_SET(x) ((x) & ~((x) - 1))
/*
* Debugging
*/
-extern unsigned int portal_subsystem_debug;
-extern unsigned int portal_stack;
-extern unsigned int portal_debug;
-extern unsigned int portal_printk;
+extern unsigned int libcfs_subsystem_debug;
+extern unsigned int libcfs_stack;
+extern unsigned int libcfs_debug;
+extern unsigned int libcfs_printk;
+extern unsigned int libcfs_console_ratelimit;
+extern unsigned int libcfs_debug_binary;
+extern char debug_file_path[1024];
+
+int libcfs_debug_mask2str(char *str, int size, int mask, int is_subsys);
+int libcfs_debug_str2mask(int *mask, const char *str, int is_subsys);
/* Has there been an LBUG? */
-extern unsigned int portals_catastrophe;
+extern unsigned int libcfs_catastrophe;
/*
* struct ptldebug_header is defined in libcfs/<os>/libcfs.h
#define PH_FLAG_FIRST_RECORD 1
/* Debugging subsystems (32 bits, non-overlapping) */
+/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */
#define S_UNDEFINED 0x00000001
#define S_MDC 0x00000002
#define S_MDS 0x00000004
#define S_LLITE 0x00000080
#define S_RPC 0x00000100
#define S_MGMT 0x00000200
-#define S_PORTALS 0x00000400
-#define S_NAL 0x00000800 /* ALL NALs */
+/* unused */
+#define S_LNET 0x00000400
+#define S_LND 0x00000800 /* ALL LNDs */
#define S_PINGER 0x00001000
#define S_FILTER 0x00002000
-#define S_PTLBD 0x00004000
+/* unused */
#define S_ECHO 0x00008000
#define S_LDLM 0x00010000
#define S_LOV 0x00020000
-#define S_PTLROUTER 0x00040000
-#define S_COBD 0x00080000
-#define S_SM 0x00100000
-#define S_ASOBD 0x00200000
-#define S_CONFOBD 0x00400000
-#define S_LMV 0x00800000
-#define S_CMOBD 0x01000000
-#define S_SEC 0x02000000
-#define S_GSS 0x04000000
-#define S_GKS 0x08000000
-/* If you change these values, please keep these files up to date...
- * portals/utils/debug.c
- * utils/lconf
- */
+/* unused */
+/* unused */
+/* unused */
+/* unused */
+/* unused */
+#define S_LMV 0x00800000 /* b_new_cmd */
+/* unused */
+#define S_SEC 0x02000000 /* upcall cache */
+#define S_GSS 0x04000000 /* b_new_cmd */
+/* unused */
+#define S_MGC 0x10000000
+#define S_MGS 0x20000000
+#define S_FID 0x40000000 /* b_new_cmd */
+#define S_FLD 0x80000000 /* b_new_cmd */
+/* keep these in sync with lnet/utils/debug.c and lnet/libcfs/debug.c */
/* Debugging masks (32 bits, non-overlapping) */
+/* keep these in sync with lnet/utils/debug.c */
#define D_TRACE 0x00000001 /* ENTRY/EXIT markers */
#define D_INODE 0x00000002
#define D_SUPER 0x00000004
#define D_CACHE 0x00000020 /* cache-related items */
#define D_INFO 0x00000040 /* general information */
#define D_IOCTL 0x00000080 /* ioctl related information */
-#define D_BLOCKS 0x00000100 /* ext2 block allocation */
+#define D_NETERROR 0x00000100 /* network errors */
#define D_NET 0x00000200 /* network communications */
#define D_WARNING 0x00000400 /* CWARN(...) == CDEBUG (D_WARNING, ...) */
#define D_BUFFS 0x00000800
#define D_OTHER 0x00001000
#define D_DENTRY 0x00002000
-#define D_PORTALS 0x00004000 /* ENTRY/EXIT markers */
+/* unused: keep in sync with lnet/utils/debug.c */
#define D_PAGE 0x00008000 /* bulk page handling */
#define D_DLMTRACE 0x00010000
#define D_ERROR 0x00020000 /* CERROR(...) == CDEBUG (D_ERROR, ...) */
#define D_CONSOLE 0x02000000
#define D_QUOTA 0x04000000
#define D_SEC 0x08000000
-/* If you change these values, please keep these files up to date...
- * portals/utils/debug.c
- * utils/lconf
- */
+/* keep these in sync with lnet/utils/debug.c */
+
+#define D_CANTMASK (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)
#ifndef DEBUG_SUBSYSTEM
# define DEBUG_SUBSYSTEM S_UNDEFINED
#endif
+#define CDEBUG_MAX_LIMIT 600
+typedef struct {
+ cfs_time_t cdls_next;
+ int cdls_count;
+ cfs_duration_t cdls_delay;
+} cfs_debug_limit_state_t;
+
+#define CDEBUG_ENABLED (1)
+
#ifdef __KERNEL__
-#define CDEBUG(mask, format, a...) \
-do { \
- CHECK_STACK(CDEBUG_STACK); \
- if (((mask) & (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)) || \
- (portal_debug & (mask) && \
- portal_subsystem_debug & DEBUG_SUBSYSTEM)) \
- portals_debug_msg(DEBUG_SUBSYSTEM, mask, \
- __FILE__, __FUNCTION__, __LINE__, \
- CDEBUG_STACK, format, ## a); \
+
+#if CDEBUG_ENABLED
+#define __CDEBUG(cdls, mask, format, a...) \
+do { \
+ CHECK_STACK(); \
+ \
+ if (((mask) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (mask)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) \
+ libcfs_debug_msg(cdls, DEBUG_SUBSYSTEM, mask, \
+ __FILE__, __FUNCTION__, __LINE__, \
+ format, ## a); \
} while (0)
-#define CDEBUG_MAX_LIMIT 600
-#define CDEBUG_LIMIT(cdebug_mask, cdebug_format, a...) \
-do { \
- static cfs_time_t cdebug_next = 0; \
- static int cdebug_count = 0; \
- static cfs_duration_t cdebug_delay = CFS_MIN_DELAY; \
- \
- CHECK_STACK(CDEBUG_STACK); \
- if (cfs_time_after(cfs_time_current(), cdebug_next)) { \
- portals_debug_msg(DEBUG_SUBSYSTEM, cdebug_mask, __FILE__, \
- __FUNCTION__, __LINE__, CDEBUG_STACK, \
- cdebug_format, ## a); \
- if (cdebug_count) { \
- portals_debug_msg(DEBUG_SUBSYSTEM, cdebug_mask, \
- __FILE__, __FUNCTION__, __LINE__,0, \
- "previously skipped %d similar " \
- "messages\n", cdebug_count); \
- cdebug_count = 0; \
- } \
- if (cfs_time_after(cfs_time_current(), \
- cdebug_next + \
- cfs_time_seconds(CDEBUG_MAX_LIMIT+10))) \
- cdebug_delay = cdebug_delay > (8 * CFS_MIN_DELAY)? \
- cdebug_delay/8 : CFS_MIN_DELAY; \
- else \
- cdebug_delay = cdebug_delay*2 >= cfs_time_seconds(CDEBUG_MAX_LIMIT)?\
- cfs_time_seconds(CDEBUG_MAX_LIMIT) : \
- cdebug_delay*2; \
- cdebug_next = cfs_time_current() + cdebug_delay; \
- } else { \
- portals_debug_msg(DEBUG_SUBSYSTEM, \
- portal_debug & \
- ~(D_EMERG|D_ERROR|D_WARNING|D_CONSOLE), \
- __FILE__, __FUNCTION__, __LINE__, \
- CDEBUG_STACK, cdebug_format, ## a); \
- cdebug_count++; \
- } \
+#define CDEBUG(mask, format, a...) __CDEBUG(NULL, mask, format, ## a)
+
+#define CDEBUG_LIMIT(mask, format, a...) \
+do { \
+ static cfs_debug_limit_state_t cdls; \
+ \
+ __CDEBUG(&cdls, mask, format, ## a); \
} while (0)
-#elif defined(LUSTRE_UTILS)
+#else /* CDEBUG_ENABLED */
+#define CDEBUG(mask, format, a...) (void)(0)
+#define CDEBUG_LIMIT(mask, format, a...) (void)(0)
+#endif
+
+#elif defined(__arch_lib__) && !defined(LUSTRE_UTILS)
#define CDEBUG(mask, format, a...) \
do { \
- if ((mask) & (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)) \
- fprintf(stderr, "(%s:%d:%s()) " format, \
- __FILE__, __LINE__, __FUNCTION__, ## a); \
+ if (((mask) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (mask)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) \
+ libcfs_debug_msg(NULL, DEBUG_SUBSYSTEM, mask, \
+ __FILE__, __FUNCTION__, __LINE__, \
+ format, ## a); \
} while (0)
+
#define CDEBUG_LIMIT CDEBUG
-#else /* !__KERNEL__ && !LUSTRE_UTILS*/
+#else
#define CDEBUG(mask, format, a...) \
do { \
- if (((mask) & (D_ERROR | D_EMERG | D_WARNING | D_CONSOLE)) || \
- (portal_debug & (mask) && \
- portal_subsystem_debug & DEBUG_SUBSYSTEM)) \
+ if (((mask) & D_CANTMASK) != 0) \
fprintf(stderr, "(%s:%d:%s()) " format, \
__FILE__, __LINE__, __FUNCTION__, ## a); \
} while (0)
+
#define CDEBUG_LIMIT CDEBUG
#endif /* !__KERNEL__ */
#define LCONSOLE_ERROR(format, a...) CDEBUG_LIMIT(D_CONSOLE | D_ERROR, format, ## a)
#define LCONSOLE_EMERG(format, a...) CDEBUG(D_CONSOLE | D_EMERG, format, ## a)
+#if CDEBUG_ENABLED
+
#define GOTO(label, rc) \
do { \
long GOTO__ret = (long)(rc); \
(signed long)GOTO__ret); \
goto label; \
} while (0)
+#else
+#define GOTO(label, rc) do { ((void)(rc)); goto label; } while (0)
+#endif
-#define CDEBUG_ENTRY_EXIT 1
+#define CDEBUG_ENTRY_EXIT (1)
#if CDEBUG_ENTRY_EXIT
/*
#endif /* !CDEBUG_ENTRY_EXIT */
-
-#define LUSTRE_SRV_PTL_PID LUSTRE_PTL_PID
-
/*
- * eeb cfg
- * ecf6
- * ecfG
+ * Some (nomina odiosa sunt) platforms define NULL as naked 0. This confuses
+ * Lustre RETURN(NULL) macro.
*/
-#define PORTALS_CFG_VERSION 0xecf60001
-
-struct portals_cfg {
- __u32 pcfg_version;
- __u32 pcfg_command;
-
- __u32 pcfg_nal;
- __u32 pcfg_flags;
-
- __u32 pcfg_gw_nal;
- __u32 pcfg_padding1;
-
- __u64 pcfg_nid;
- __u64 pcfg_nid2;
- __u64 pcfg_nid3;
- __u32 pcfg_id;
- __u32 pcfg_misc;
- __u32 pcfg_fd;
- __u32 pcfg_count;
- __u32 pcfg_size;
- __u32 pcfg_wait;
-
- __u32 pcfg_plen1; /* buffers in userspace */
- __u32 pcfg_plen2; /* buffers in userspace */
- __u32 pcfg_alloc_size; /* size of this allocated portals_cfg */
- char pcfg_pbuf[0];
-};
-
-#define PCFG_INIT(pcfg, cmd) \
-do { \
- memset(&(pcfg), 0, sizeof((pcfg))); \
- (pcfg).pcfg_version = PORTALS_CFG_VERSION; \
- (pcfg).pcfg_command = (cmd); \
- \
-} while (0)
+#if defined(NULL)
+#undef NULL
+#endif
-#define PCFG_INIT_PBUF(pcfg, cmd, plen1, plen2) \
- do { \
- int bufsize = size_round(sizeof(*(pcfg))); \
- bufsize += size_round(plen1) + size_round(plen2); \
- PORTAL_ALLOC((pcfg), bufsize); \
- if ((pcfg)) { \
- memset((pcfg), 0, bufsize); \
- (pcfg)->pcfg_version = PORTALS_CFG_VERSION; \
- (pcfg)->pcfg_command = (cmd); \
- (pcfg)->pcfg_plen1 = (plen1); \
- (pcfg)->pcfg_plen2 = (plen2); \
- (pcfg)->pcfg_alloc_size = bufsize; \
- } \
- } while (0)
-
-#define PCFG_FREE_PBUF(pcfg) PORTAL_FREE((pcfg), (pcfg)->pcfg_alloc_size)
-
-#define PCFG_PBUF(pcfg, idx) \
- (0 == (idx) \
- ? ((char *)(pcfg) + size_round(sizeof(*(pcfg)))) \
- : (1 == (idx) \
- ? ((char *)(pcfg) + size_round(sizeof(*(pcfg))) + size_round(pcfg->pcfg_plen1)) \
- : (NULL)))
-
-typedef int (nal_cmd_handler_fn)(struct portals_cfg *, void *);
-int libcfs_nal_cmd_register(int nal, nal_cmd_handler_fn *handler, void *arg);
-int libcfs_nal_cmd(struct portals_cfg *pcfg);
-void libcfs_nal_cmd_unregister(int nal);
-
-struct portal_ioctl_data {
- __u32 ioc_len;
- __u32 ioc_version;
- __u64 ioc_nid;
- __u64 ioc_nid2;
- __u64 ioc_nid3;
- __u32 ioc_count;
- __u32 ioc_nal;
- __u32 ioc_nal_cmd;
- __u32 ioc_fd;
- __u32 ioc_id;
-
- __u32 ioc_flags;
- __u32 ioc_size;
-
- __u32 ioc_wait;
- __u32 ioc_timeout;
- __u32 ioc_misc;
-
- __u32 ioc_inllen1;
- char *ioc_inlbuf1;
- __u32 ioc_inllen2;
- char *ioc_inlbuf2;
-
- __u32 ioc_plen1; /* buffers in userspace */
- char *ioc_pbuf1;
- __u32 ioc_plen2; /* buffers in userspace */
- char *ioc_pbuf2;
-
- char ioc_bulk[0];
-};
+#define NULL ((void *)0)
+#define LUSTRE_SRV_LNET_PID LUSTRE_LNET_PID
#ifdef __KERNEL__
#include <libcfs/list.h>
+struct libcfs_ioctl_data; /* forward ref */
+
struct libcfs_ioctl_handler {
struct list_head item;
- int (*handle_ioctl)(struct portal_ioctl_data *data,
- unsigned int cmd, unsigned long args);
+ int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
};
-#define DECLARE_IOCTL_HANDLER(ident, func) \
- struct libcfs_ioctl_handler ident = { \
- .item = CFS_LIST_HEAD_INIT(ident.item), \
- .handle_ioctl = func \
+#define DECLARE_IOCTL_HANDLER(ident, func) \
+ struct libcfs_ioctl_handler ident = { \
+ /* .item = */ CFS_LIST_HEAD_INIT(ident.item), \
+ /* .handle_ioctl = */ func \
}
int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
+/* libcfs tcpip */
+#define LNET_ACCEPTOR_MIN_RESERVED_PORT 512
+#define LNET_ACCEPTOR_MAX_RESERVED_PORT 1023
+
+int libcfs_ipif_query(char *name, int *up, __u32 *ip, __u32 *mask);
+int libcfs_ipif_enumerate(char ***names);
+void libcfs_ipif_free_enumeration(char **names, int n);
+int libcfs_sock_listen(cfs_socket_t **sockp, __u32 ip, int port, int backlog);
+int libcfs_sock_accept(cfs_socket_t **newsockp, cfs_socket_t *sock);
+void libcfs_sock_abort_accept(cfs_socket_t *sock);
+int libcfs_sock_connect(cfs_socket_t **sockp, int *fatal,
+ __u32 local_ip, int local_port,
+ __u32 peer_ip, int peer_port);
+int libcfs_sock_setbuf(cfs_socket_t *socket, int txbufsize, int rxbufsize);
+int libcfs_sock_getbuf(cfs_socket_t *socket, int *txbufsize, int *rxbufsize);
+int libcfs_sock_getaddr(cfs_socket_t *socket, int remote, __u32 *ip, int *port);
+int libcfs_sock_write(cfs_socket_t *sock, void *buffer, int nob, int timeout);
+int libcfs_sock_read(cfs_socket_t *sock, void *buffer, int nob, int timeout);
+void libcfs_sock_release(cfs_socket_t *sock);
+
/* libcfs watchdogs */
struct lc_watchdog;
-/* Just use the default handler (dumplog) */
-#define LC_WATCHDOG_DEFAULT_CB NULL
-
/* Add a watchdog which fires after "time" milliseconds of delay. You have to
* touch it once to enable it. */
struct lc_watchdog *lc_watchdog_add(int time,
- void (*cb)(struct lc_watchdog *,
- struct task_struct *,
- void *),
+ void (*cb)(pid_t pid, void *),
void *data);
/* Enables a watchdog and resets its timer. */
void lc_watchdog_delete(struct lc_watchdog *lcw);
/* Dump a debug log */
-void lc_watchdog_dumplog(struct lc_watchdog *lcw,
- struct task_struct *tsk,
- void *data);
+void lc_watchdog_dumplog(pid_t pid, void *data);
/* __KERNEL__ */
#endif
cfs_fs_time_t t;
cfs_fs_time_current(&t);
- return cfs_fs_time_sec(&t);
+ return (time_t)cfs_fs_time_sec(&t);
+}
+
+static inline cfs_time_t cfs_time_shift(int seconds)
+{
+ return cfs_time_add(cfs_time_current(), cfs_time_seconds(seconds));
+}
+
+static inline long cfs_timeval_sub(struct timeval *large, struct timeval *small,
+ struct timeval *result)
+{
+ long r = (long) (
+ (large->tv_sec - small->tv_sec) * ONE_MILLION +
+ (large->tv_usec - small->tv_usec));
+ if (result != NULL) {
+ result->tv_usec = r / ONE_MILLION;
+ result->tv_sec = r;
+ }
+ return r;
}
#define CFS_RATELIMIT(seconds) \
result; \
})
-extern void portals_debug_msg(int subsys, int mask, char *file, const char *fn,
- const int line, unsigned long stack,
- char *format, ...)
- __attribute__ ((format (printf, 7, 8)));
+struct libcfs_debug_msg_data {
+ cfs_debug_limit_state_t *msg_cdls;
+ int msg_subsys;
+ const char *msg_file;
+ const char *msg_fn;
+ int msg_line;
+};
+
+#define DEBUG_MSG_DATA_INIT(cdls, subsystem, file, func, ln ) { \
+ .msg_cdls = (cdls), \
+ .msg_subsys = (subsystem), \
+ .msg_file = (file), \
+ .msg_fn = (func), \
+ .msg_line = (ln) \
+ }
+
+
+extern int libcfs_debug_vmsg2(cfs_debug_limit_state_t *cdls,
+ int subsys, int mask,
+ const char *file, const char *fn, const int line,
+ const char *format1, va_list args,
+ const char *format2, ...);
+
+#define libcfs_debug_vmsg(cdls, subsys, mask, file, fn, line, format, args) \
+ libcfs_debug_vmsg2(cdls, subsys, mask, file, fn, line, format, args, NULL, NULL)
+
+#define libcfs_debug_msg(cdls, subsys, mask, file, fn, line, format, a...) \
+ libcfs_debug_vmsg2(cdls, subsys, mask, file, fn, line, NULL, NULL, format, ##a)
+
+#define cdebug_va(cdls, mask, file, func, line, fmt, args) do { \
+ CHECK_STACK(); \
+ \
+ if (((mask) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (mask)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) \
+ libcfs_debug_vmsg(cdls, DEBUG_SUBSYSTEM, (mask), \
+ (file), (func), (line), fmt, args); \
+} while(0);
+
+#define cdebug(cdls, mask, file, func, line, fmt, a...) do { \
+ CHECK_STACK(); \
+ \
+ if (((mask) & D_CANTMASK) != 0 || \
+ ((libcfs_debug & (mask)) != 0 && \
+ (libcfs_subsystem_debug & DEBUG_SUBSYSTEM) != 0)) \
+ libcfs_debug_msg(cdls, DEBUG_SUBSYSTEM, (mask), \
+ (file), (func), (line), fmt, ## a); \
+} while(0);
+
+extern void libcfs_assertion_failed(const char *expr, const char *file,
+ const char *fn, const int line);
static inline void cfs_slow_warning(cfs_time_t now, int seconds, char *msg)
{
*/
static inline void cfs_fs_timeval(struct timeval *tv)
{
- cfs_fs_time_t time;
+ cfs_fs_time_t time;
- cfs_fs_time_current(&time);
- cfs_fs_time_usec(&time, tv);
+ cfs_fs_time_current(&time);
+ cfs_fs_time_usec(&time, tv);
}
/*
*/
static inline cfs_duration_t cfs_timeout_cap(cfs_duration_t timeout)
{
- if (timeout < cfs_time_minimal_timeout())
- timeout = cfs_time_minimal_timeout();
- return timeout;
+ if (timeout < CFS_TICK)
+ timeout = CFS_TICK;
+ return timeout;
}
/*
- * Portable memory allocator API (draft)
+ * Universal memory allocator API
*/
enum cfs_alloc_flags {
/* allocation is not allowed to block */
CFS_ALLOC_FS = (1 << 3),
/* allocation is allowed to do io to free/clean memory */
CFS_ALLOC_IO = (1 << 4),
+ /* don't report allocation failure to the console */
+ CFS_ALLOC_NOWARN = (1 << 5),
/* 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,
};
-#define CFS_SLAB_ATOMIC CFS_ALLOC_ATOMIC
-#define CFS_SLAB_WAIT CFS_ALLOC_WAIT
-#define CFS_SLAB_ZERO CFS_ALLOC_ZERO
-#define CFS_SLAB_FS CFS_ALLOC_FS
-#define CFS_SLAB_IO CFS_ALLOC_IO
-#define CFS_SLAB_STD CFS_ALLOC_STD
-#define CFS_SLAB_USER CFS_ALLOC_USER
-
/* flags for cfs_page_alloc() in addition to enum cfs_alloc_flags */
-enum cfs_page_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 = (1 << 5),
CFS_ALLOC_HIGHUSER = CFS_ALLOC_WAIT | CFS_ALLOC_FS | CFS_ALLOC_IO | CFS_ALLOC_HIGH,
};
+/*
+ * portable UNIX device file identification. (This is not _very_
+ * portable. Probably makes no sense for Windows.)
+ */
+/*
+ * Platform defines
+ *
+ * cfs_rdev_t
+ */
+
+typedef unsigned int cfs_major_nr_t;
+typedef unsigned int cfs_minor_nr_t;
+
+/*
+ * Defined by platform.
+ */
+cfs_rdev_t cfs_rdev_build(cfs_major_nr_t major, cfs_minor_nr_t minor);
+cfs_major_nr_t cfs_rdev_major(cfs_rdev_t rdev);
+cfs_minor_nr_t cfs_rdev_minor(cfs_rdev_t rdev);
+
+/*
+ * Generic on-wire rdev format.
+ */
+
+typedef __u32 cfs_wire_rdev_t;
+
+cfs_wire_rdev_t cfs_wire_rdev_build(cfs_major_nr_t major, cfs_minor_nr_t minor);
+cfs_major_nr_t cfs_wire_rdev_major(cfs_wire_rdev_t rdev);
+cfs_minor_nr_t cfs_wire_rdev_minor(cfs_wire_rdev_t rdev);
+
+/*
+ * Drop into debugger, if possible. Implementation is provided by platform.
+ */
+
+void cfs_enter_debugger(void);
+
+/*
+ * 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);
+void cfs_restore_sigs(cfs_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);
+
+/*
+ * Stack-tracing filling.
+ */
+
+/*
+ * Platform-dependent data-type to hold stack frames.
+ */
+struct cfs_stack_trace;
+
+/*
+ * Fill @trace with current back-trace.
+ */
+void cfs_stack_trace_fill(struct cfs_stack_trace *trace);
+
+/*
+ * Return instruction pointer for frame @frame_no. NULL if @frame_no is
+ * invalid.
+ */
+void *cfs_stack_trace_frame(struct cfs_stack_trace *trace, int frame_no);
+
+/*
+ * Universal open flags.
+ */
+#define CFS_O_ACCMODE 0003
+#define CFS_O_CREAT 0100
+#define CFS_O_EXCL 0200
+#define CFS_O_NOCTTY 0400
+#define CFS_O_TRUNC 01000
+#define CFS_O_APPEND 02000
+#define CFS_O_NONBLOCK 04000
+#define CFS_O_NDELAY CFS_O_NONBLOCK
+#define CFS_O_SYNC 010000
+#define CFS_O_ASYNC 020000
+#define CFS_O_DIRECT 040000
+#define CFS_O_LARGEFILE 0100000
+#define CFS_O_DIRECTORY 0200000
+#define CFS_O_NOFOLLOW 0400000
+#define CFS_O_NOATIME 01000000
+
+/* convert local open flags to universal open flags */
+int cfs_oflags2univ(int flags);
+/* convert universal open flags to local open flags */
+int cfs_univ2oflags(int flags);
#define _LIBCFS_H
git://git.whamcloud.com / fs / lustre-release.git / blobdiff