X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Finclude%2Flinux%2Flustre_lib.h;h=fb476f1c23262d4599743b93076f3192af0f514e;hb=322968acf183ab16d952cd3026f6580957b31259;hp=968a3108039010b58b41f9d52d939a69ee079bf5;hpb=2dc9c16e770415d56839e1996015fec5fab93f29;p=fs%2Flustre-release.git diff --git a/lustre/include/linux/lustre_lib.h b/lustre/include/linux/lustre_lib.h index 968a310..fb476f1 100644 --- a/lustre/include/linux/lustre_lib.h +++ b/lustre/include/linux/lustre_lib.h @@ -1,44 +1,60 @@ /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * - * Copyright (C) 2001 Cluster File Systems, Inc. + * GPL HEADER START * - * This file is part of Lustre, http://www.lustre.org. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * Lustre is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 only, + * as published by the Free Software Foundation. * - * Lustre is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License version 2 for more details (a copy is included + * in the LICENSE file that accompanied this code). * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * You should have received a copy of the GNU General Public License + * version 2 along with this program; If not, see + * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf * - * Basic Lustre library routines. + * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. * + * GPL HEADER END + */ +/* + * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. + * Use is subject to license terms. */ +/* + * This file is part of Lustre, http://www.lustre.org/ + * Lustre is a trademark of Sun Microsystems, Inc. + * + * lustre/include/linux/lustre_lib.h + * + * Basic Lustre library routines. + */ + +#ifndef _LINUX_LUSTRE_LIB_H +#define _LINUX_LUSTRE_LIB_H #ifndef _LUSTRE_LIB_H -#define _LUSTRE_LIB_H +#error Do not #include this file directly. #include instead +#endif #ifndef __KERNEL__ # include # include #else -# include # include # include # include # include #endif -#include -#include /* XXX just for LASSERT! */ -#include -#include +#include #ifndef LP_POISON #if BITS_PER_LONG > 32 @@ -52,661 +68,28 @@ #endif #endif -#ifndef LPU64 -/* x86_64 has 64bit longs and defines u64 as long long */ -#if BITS_PER_LONG > 32 && !defined(__x86_64__) -#define LPU64 "%lu" -#define LPD64 "%ld" -#define LPX64 "%#lx" -#else -#define LPU64 "%Lu" -#define LPD64 "%Ld" -#define LPX64 "%#Lx" -#endif -#endif - -/* target.c */ -struct ptlrpc_request; -struct recovd_data; -struct recovd_obd; -struct obd_export; -#include -#include -#include -#include - -int target_handle_connect(struct ptlrpc_request *req, svc_handler_t handler); -int target_handle_disconnect(struct ptlrpc_request *req); -void target_destroy_export(struct obd_export *exp); -int target_handle_reconnect(struct lustre_handle *conn, struct obd_export *exp, - struct obd_uuid *cluuid); -int target_handle_ping(struct ptlrpc_request *req); -void target_cancel_recovery_timer(struct obd_device *obd); - -#define OBD_RECOVERY_TIMEOUT (obd_timeout * 5 * HZ / 2) /* *waves hands* */ -void target_start_recovery_timer(struct obd_device *obd, svc_handler_t handler); -void target_abort_recovery(void *data); -int target_queue_recovery_request(struct ptlrpc_request *req, - struct obd_device *obd); -int target_queue_final_reply(struct ptlrpc_request *req, int rc); -void target_send_reply(struct ptlrpc_request *req, int rc, int fail_id); - -/* client.c */ - -int client_sanobd_setup(struct obd_device *obddev, obd_count len, void *buf); -struct client_obd *client_conn2cli(struct lustre_handle *conn); - -struct mdc_open_data; -struct obd_client_handle { - struct lustre_handle och_fh; - struct llog_cookie och_cookie; - struct mdc_open_data *och_mod; - __u32 och_magic; -}; -#define OBD_CLIENT_HANDLE_MAGIC 0xd15ea5ed - -/* statfs_pack.c */ -void statfs_pack(struct obd_statfs *osfs, struct kstatfs *sfs); -void statfs_unpack(struct kstatfs *sfs, struct obd_statfs *osfs); - -/* l_lock.c */ -struct lustre_lock { - int l_depth; - struct task_struct *l_owner; - struct semaphore l_sem; - spinlock_t l_spin; -}; - -void l_lock_init(struct lustre_lock *); -void l_lock(struct lustre_lock *); -void l_unlock(struct lustre_lock *); -int l_has_lock(struct lustre_lock *); - - -#include - -/* - * OBD IOCTLS - */ -#define OBD_IOCTL_VERSION 0x00010004 - -struct obd_ioctl_data { - uint32_t ioc_len; - uint32_t ioc_version; - - uint64_t ioc_cookie; - uint32_t ioc_conn1; - uint32_t ioc_conn2; - - struct obdo ioc_obdo1; - struct obdo ioc_obdo2; - - obd_size ioc_count; - obd_off ioc_offset; - uint32_t ioc_dev; - uint32_t ioc_command; - - uint64_t ioc_nid; - uint32_t ioc_nal; - uint32_t ioc_type; - - /* buffers the kernel will treat as user pointers */ - uint32_t ioc_plen1; - char *ioc_pbuf1; - uint32_t ioc_plen2; - char *ioc_pbuf2; - - /* inline buffers for various arguments */ - uint32_t ioc_inllen1; - char *ioc_inlbuf1; - uint32_t ioc_inllen2; - char *ioc_inlbuf2; - uint32_t ioc_inllen3; - char *ioc_inlbuf3; - uint32_t ioc_inllen4; - char *ioc_inlbuf4; - - char ioc_bulk[0]; -}; - -struct obd_ioctl_hdr { - uint32_t ioc_len; - uint32_t ioc_version; -}; - -static inline int obd_ioctl_packlen(struct obd_ioctl_data *data) -{ - int len = size_round(sizeof(struct obd_ioctl_data)); - len += size_round(data->ioc_inllen1); - len += size_round(data->ioc_inllen2); - len += size_round(data->ioc_inllen3); - len += size_round(data->ioc_inllen4); - return len; -} - - -static inline int obd_ioctl_is_invalid(struct obd_ioctl_data *data) -{ - if (data->ioc_len > (1<<30)) { - printk("LustreError: OBD ioctl: ioc_len larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen1 > (1<<30)) { - printk("LustreError: OBD ioctl: ioc_inllen1 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen2 > (1<<30)) { - printk("LustreError: OBD ioctl: ioc_inllen2 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen3 > (1<<30)) { - printk("LustreError: OBD ioctl: ioc_inllen3 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inllen4 > (1<<30)) { - printk("LustreError: OBD ioctl: ioc_inllen4 larger than 1<<30\n"); - return 1; - } - if (data->ioc_inlbuf1 && !data->ioc_inllen1) { - printk("LustreError: OBD ioctl: inlbuf1 pointer but 0 length\n"); - return 1; - } - if (data->ioc_inlbuf2 && !data->ioc_inllen2) { - printk("LustreError: OBD ioctl: inlbuf2 pointer but 0 length\n"); - return 1; - } - if (data->ioc_inlbuf3 && !data->ioc_inllen3) { - printk("LustreError: OBD ioctl: inlbuf3 pointer but 0 length\n"); - return 1; - } - if (data->ioc_inlbuf4 && !data->ioc_inllen4) { - printk("LustreError: OBD ioctl: inlbuf4 pointer but 0 length\n"); - return 1; - } - if (data->ioc_pbuf1 && !data->ioc_plen1) { - printk("LustreError: OBD ioctl: pbuf1 pointer but 0 length\n"); - return 1; - } - if (data->ioc_pbuf2 && !data->ioc_plen2) { - printk("LustreError: OBD ioctl: pbuf2 pointer but 0 length\n"); - return 1; - } - if (data->ioc_plen1 && !data->ioc_pbuf1) { - printk("LustreError: OBD ioctl: plen1 set but NULL pointer\n"); - return 1; - } - if (data->ioc_plen2 && !data->ioc_pbuf2) { - printk("LustreError: OBD ioctl: plen2 set but NULL pointer\n"); - return 1; - } - if (obd_ioctl_packlen(data) != data->ioc_len) { - printk("LustreError: OBD ioctl: packlen exceeds ioc_len (%d != %d)\n", - obd_ioctl_packlen(data), data->ioc_len); - return 1; - } - return 0; -} - -#ifndef __KERNEL__ -static inline int obd_ioctl_pack(struct obd_ioctl_data *data, char **pbuf, - int max) -{ - char *ptr; - struct obd_ioctl_data *overlay; - data->ioc_len = obd_ioctl_packlen(data); - data->ioc_version = OBD_IOCTL_VERSION; - - if (*pbuf && data->ioc_len > max) - return 1; - if (*pbuf == NULL) { - *pbuf = malloc(data->ioc_len); - } - if (!*pbuf) - return 1; - overlay = (struct obd_ioctl_data *)*pbuf; - memcpy(*pbuf, data, sizeof(*data)); - - ptr = overlay->ioc_bulk; - if (data->ioc_inlbuf1) - LOGL(data->ioc_inlbuf1, data->ioc_inllen1, ptr); - if (data->ioc_inlbuf2) - LOGL(data->ioc_inlbuf2, data->ioc_inllen2, ptr); - if (data->ioc_inlbuf3) - LOGL(data->ioc_inlbuf3, data->ioc_inllen3, ptr); - if (data->ioc_inlbuf4) - LOGL(data->ioc_inlbuf4, data->ioc_inllen4, ptr); - if (obd_ioctl_is_invalid(overlay)) - return 1; - - return 0; -} - -static inline int obd_ioctl_unpack(struct obd_ioctl_data *data, char *pbuf, - int max) -{ - char *ptr; - struct obd_ioctl_data *overlay; - - if (!pbuf) - return 1; - overlay = (struct obd_ioctl_data *)pbuf; - - /* Preserve the caller's buffer pointers */ - overlay->ioc_inlbuf1 = data->ioc_inlbuf1; - overlay->ioc_inlbuf2 = data->ioc_inlbuf2; - overlay->ioc_inlbuf3 = data->ioc_inlbuf3; - overlay->ioc_inlbuf4 = data->ioc_inlbuf4; - - memcpy(data, pbuf, sizeof(*data)); - - ptr = overlay->ioc_bulk; - if (data->ioc_inlbuf1) - LOGU(data->ioc_inlbuf1, data->ioc_inllen1, ptr); - if (data->ioc_inlbuf2) - LOGU(data->ioc_inlbuf2, data->ioc_inllen2, ptr); - if (data->ioc_inlbuf3) - LOGU(data->ioc_inlbuf3, data->ioc_inllen3, ptr); - if (data->ioc_inlbuf4) - LOGU(data->ioc_inlbuf4, data->ioc_inllen4, ptr); - - return 0; -} -#endif - -#include - -/* buffer MUST be at least the size of obd_ioctl_hdr */ -static inline int obd_ioctl_getdata(char **buf, int *len, void *arg) -{ - struct obd_ioctl_hdr hdr; - struct obd_ioctl_data *data; - int err; - int offset = 0; - ENTRY; - - err = copy_from_user(&hdr, (void *)arg, sizeof(hdr)); - if ( err ) { - EXIT; - return err; - } - - if (hdr.ioc_version != OBD_IOCTL_VERSION) { - CERROR("Version mismatch kernel vs application\n"); - return -EINVAL; - } - - if (hdr.ioc_len > OBD_MAX_IOCTL_BUFFER) { - CERROR("User buffer len %d exceeds %d max buffer\n", - hdr.ioc_len, OBD_MAX_IOCTL_BUFFER); - return -EINVAL; - } - - if (hdr.ioc_len < sizeof(struct obd_ioctl_data)) { - printk("LustreError: OBD: user buffer too small for ioctl\n"); - return -EINVAL; - } - - /* XXX allocate this more intelligently, using kmalloc when - * appropriate */ - OBD_VMALLOC(*buf, hdr.ioc_len); - if (*buf == NULL) { - CERROR("Cannot allocate control buffer of len %d\n", - hdr.ioc_len); - RETURN(-EINVAL); - } - *len = hdr.ioc_len; - data = (struct obd_ioctl_data *)*buf; - - err = copy_from_user(*buf, (void *)arg, hdr.ioc_len); - if ( err ) { - EXIT; - return err; - } - - if (obd_ioctl_is_invalid(data)) { - CERROR("ioctl not correctly formatted\n"); - return -EINVAL; - } - - if (data->ioc_inllen1) { - data->ioc_inlbuf1 = &data->ioc_bulk[0]; - offset += size_round(data->ioc_inllen1); - } - - if (data->ioc_inllen2) { - data->ioc_inlbuf2 = &data->ioc_bulk[0] + offset; - offset += size_round(data->ioc_inllen2); - } - - if (data->ioc_inllen3) { - data->ioc_inlbuf3 = &data->ioc_bulk[0] + offset; - offset += size_round(data->ioc_inllen3); - } - - if (data->ioc_inllen4) { - data->ioc_inlbuf4 = &data->ioc_bulk[0] + offset; - } - - EXIT; - return 0; -} - -static inline void obd_ioctl_freedata(char *buf, int len) -{ - ENTRY; - - OBD_VFREE(buf, len); - EXIT; - return; -} - -#define OBD_IOC_CREATE _IOR ('f', 101, long) -#define OBD_IOC_DESTROY _IOW ('f', 104, long) -#define OBD_IOC_PREALLOCATE _IOWR('f', 105, long) - -#define OBD_IOC_SETATTR _IOW ('f', 107, long) -#define OBD_IOC_GETATTR _IOR ('f', 108, long) -#define OBD_IOC_READ _IOWR('f', 109, long) -#define OBD_IOC_WRITE _IOWR('f', 110, long) - - -#define OBD_IOC_STATFS _IOWR('f', 113, long) -#define OBD_IOC_SYNC _IOR ('f', 114, long) -#define OBD_IOC_READ2 _IOWR('f', 115, long) -#define OBD_IOC_FORMAT _IOWR('f', 116, long) -#define OBD_IOC_PARTITION _IOWR('f', 117, long) -#define OBD_IOC_COPY _IOWR('f', 120, long) -#define OBD_IOC_MIGR _IOWR('f', 121, long) -#define OBD_IOC_PUNCH _IOWR('f', 122, long) - -#define OBD_IOC_MODULE_DEBUG _IOWR('f', 124, long) -#define OBD_IOC_BRW_READ _IOWR('f', 125, long) -#define OBD_IOC_BRW_WRITE _IOWR('f', 126, long) -#define OBD_IOC_NAME2DEV _IOWR('f', 127, long) -#define OBD_IOC_UUID2DEV _IOWR('f', 130, long) - -#define OBD_IOC_LOV_GET_CONFIG _IOWR('f', 132, long) -#define OBD_IOC_CLIENT_RECOVER _IOW ('f', 133, long) - -#define OBD_IOC_PING _IOWR('f', 135, long) - -#define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 139 ) -#define OBD_IOC_NO_TRANSNO _IOW ('f', 140, long) -#define OBD_IOC_SET_READONLY _IOW ('f', 141, long) -#define OBD_IOC_ABORT_RECOVERY _IOR ('f', 142, long) - -#define OBD_GET_VERSION _IOWR ('f', 144, long) - -#define OBD_IOC_CLOSE_UUID _IOWR ('f', 147, long) - -#define OBD_IOC_LOV_SETSTRIPE _IOW ('f', 154, long) -#define OBD_IOC_LOV_GETSTRIPE _IOW ('f', 155, long) -#define OBD_IOC_LOV_SETEA _IOW ('f', 156, long) - -#define OBD_IOC_MOUNTOPT _IOWR('f', 170, long) - -#define OBD_IOC_RECORD _IOWR('f', 180, long) -#define OBD_IOC_ENDRECORD _IOWR('f', 181, long) -#define OBD_IOC_PARSE _IOWR('f', 182, long) -#define OBD_IOC_DORECORD _IOWR('f', 183, long) -#define OBD_IOC_PROCESS_CFG _IOWR('f', 184, long) -#define OBD_IOC_DUMP_LOG _IOWR('f', 185, long) -#define OBD_IOC_CLEAR_LOG _IOWR('f', 186, long) - -#define OBD_IOC_CATLOGLIST _IOWR('f', 190, long) -#define OBD_IOC_LLOG_INFO _IOWR('f', 191, long) -#define OBD_IOC_LLOG_PRINT _IOWR('f', 192, long) -#define OBD_IOC_LLOG_CANCEL _IOWR('f', 193, long) -#define OBD_IOC_LLOG_REMOVE _IOWR('f', 194, long) -#define OBD_IOC_LLOG_CHECK _IOWR('f', 195, long) -#define OBD_IOC_LLOG_CATINFO _IOWR('f', 196, long) - -#define ECHO_IOC_GET_STRIPE _IOWR('f', 200, long) -#define ECHO_IOC_SET_STRIPE _IOWR('f', 201, long) -#define ECHO_IOC_ENQUEUE _IOWR('f', 202, long) -#define ECHO_IOC_CANCEL _IOWR('f', 203, long) - -#define OBD_IOC_CMOBD_SYNC _IOWR('f', 210, long) - -#define OBD_IOC_COBD_CON _IOWR('f', 220, long) -#define OBD_IOC_COBD_COFF _IOWR('f', 221, long) -#define OBD_IOC_COBD_CFLUSH _IOWR('f', 222, long) -/* XXX _IOWR('f', 250, long) has been defined in - * portals/include/linux/kp30.h for debug, don't use it - */ - -/* Until such time as we get_info the per-stripe maximum from the OST, - * we define this to be 2T - 4k, which is the ext3 maxbytes. */ -#define LUSTRE_STRIPE_MAXBYTES 0x1fffffff000ULL - -#define CHECKSUM_BULK 0 -#define POISON_BULK 0 - -#if CHECKSUM_BULK -static inline void ost_checksum(obd_count *cksum, void *addr, int len) -{ - unsigned char *ptr = (unsigned char *)addr; - obd_count sum = 0; - - /* very stupid, but means I don't have to think about byte order */ - while (len-- > 0) - sum += *ptr++; - - *cksum = (*cksum << 2) + sum; -} -#endif - -static inline int ll_insecure_random_int(void) -{ -#ifdef __arch_um__ - struct timeval t; - do_gettimeofday(&t); - return (int)(t.tv_usec); -#else - return (int)(get_cycles() >> 2); -#endif -} - -/* - * l_wait_event is a flexible sleeping function, permitting simple caller - * configuration of interrupt and timeout sensitivity along with actions to - * be performed in the event of either exception. - * - * Common usage looks like this: - * - * struct l_wait_info lwi = LWI_TIMEOUT_INTR(timeout, timeout_handler, - * intr_handler, callback_data); - * rc = l_wait_event(waitq, condition, &lwi); - * - * (LWI_TIMEOUT and LWI_INTR macros are available for timeout- and - * interrupt-only variants, respectively.) - * - * If a timeout is specified, the timeout_handler will be invoked in the event - * that the timeout expires before the process is awakened. (Note that any - * waking of the process will restart the timeout, even if the condition is - * not satisfied and the process immediately returns to sleep. This might be - * considered a bug.) If the timeout_handler returns non-zero, l_wait_event - * will return -ETIMEDOUT and the caller will continue. If the handler returns - * zero instead, the process will go back to sleep until it is awakened by the - * waitq or some similar mechanism, or an interrupt occurs (if the caller has - * asked for interrupts to be detected). The timeout will only fire once, so - * callers should take care that a timeout_handler which returns zero will take - * future steps to awaken the process. N.B. that these steps must include - * making the provided condition become true. - * - * If the interrupt flag (lwi_signals) is non-zero, then the process will be - * interruptible, and will be awakened by any "killable" signal (SIGTERM, - * SIGKILL or SIGINT). If a timeout is also specified, then the process will - * only become interruptible _after_ the timeout has expired, though it can be - * awakened by a signal that was delivered before the timeout and is still - * pending when the timeout expires. If a timeout is not specified, the process - * will be interruptible at all times during l_wait_event. - */ - -struct l_wait_info { - long lwi_timeout; - int (*lwi_on_timeout)(void *); - long lwi_signals; - void (*lwi_on_signal)(void *); - void *lwi_cb_data; -}; - -#define LWI_TIMEOUT(time, cb, data) \ -((struct l_wait_info) { \ - lwi_timeout: time, \ - lwi_on_timeout: cb, \ - lwi_cb_data: data \ -}) - -#define LWI_INTR(cb, data) \ -((struct l_wait_info) { \ - lwi_signals: 1, \ - lwi_on_signal: cb, \ - lwi_cb_data: data \ -}) - -#define LWI_TIMEOUT_INTR(time, time_cb, sig_cb, data) \ -((struct l_wait_info) { \ - lwi_timeout: time, \ - lwi_on_timeout: time_cb, \ - lwi_signals: 1, \ - lwi_on_signal: sig_cb, \ - lwi_cb_data: data \ -}) +/* This macro is only for compatibility reasons with older Linux Lustre user + * tools. New ioctls should NOT use this macro as the ioctl "size". Instead + * the ioctl should get a "size" argument which is the actual data type used + * by the ioctl, to ensure the ioctl interface is versioned correctly. */ +#define OBD_IOC_DATA_TYPE long #define LUSTRE_FATAL_SIGS (sigmask(SIGKILL) | sigmask(SIGINT) | \ sigmask(SIGTERM) | sigmask(SIGQUIT) | \ sigmask(SIGALRM)) #ifdef __KERNEL__ -static inline sigset_t l_w_e_set_sigs(int sigs) +/* initialize ost_lvb according to inode */ +static inline void inode_init_lvb(struct inode *inode, struct ost_lvb *lvb) { - sigset_t old; - unsigned long irqflags; - - SIGNAL_MASK_LOCK(current, irqflags); - old = current->blocked; - siginitsetinv(¤t->blocked, sigs); - RECALC_SIGPENDING; - SIGNAL_MASK_UNLOCK(current, irqflags); - - return old; + lvb->lvb_size = i_size_read(inode); + lvb->lvb_blocks = inode->i_blocks; + lvb->lvb_mtime = LTIME_S(inode->i_mtime); + lvb->lvb_atime = LTIME_S(inode->i_atime); + lvb->lvb_ctime = LTIME_S(inode->i_ctime); } - -#define __l_wait_event(wq, condition, info, ret, excl) \ -do { \ - wait_queue_t __wait; \ - int __timed_out = 0; \ - unsigned long irqflags; \ - sigset_t blocked; \ - \ - init_waitqueue_entry(&__wait, current); \ - if (excl) \ - add_wait_queue_exclusive(&wq, &__wait); \ - else \ - add_wait_queue(&wq, &__wait); \ - \ - /* Block all signals (just the non-fatal ones if no timeout). */ \ - if (info->lwi_signals && !info->lwi_timeout) \ - blocked = l_w_e_set_sigs(LUSTRE_FATAL_SIGS); \ - else \ - blocked = l_w_e_set_sigs(0); \ - \ - for (;;) { \ - set_current_state(TASK_INTERRUPTIBLE); \ - if (condition) \ - break; \ - if (signal_pending(current)) { \ - if (info->lwi_on_signal) \ - info->lwi_on_signal(info->lwi_cb_data); \ - ret = -EINTR; \ - break; \ - } \ - if (info->lwi_timeout && !__timed_out) { \ - if (schedule_timeout(info->lwi_timeout) == 0) { \ - __timed_out = 1; \ - if (!info->lwi_on_timeout || \ - info->lwi_on_timeout(info->lwi_cb_data)) { \ - ret = -ETIMEDOUT; \ - break; \ - } \ - /* We'll take signals after a timeout. */ \ - if (info->lwi_signals) \ - (void)l_w_e_set_sigs(LUSTRE_FATAL_SIGS); \ - } \ - } else { \ - schedule(); \ - } \ - } \ - \ - SIGNAL_MASK_LOCK(current, irqflags); \ - current->blocked = blocked; \ - RECALC_SIGPENDING; \ - SIGNAL_MASK_UNLOCK(current, irqflags); \ - \ - current->state = TASK_RUNNING; \ - remove_wait_queue(&wq, &__wait); \ -} while(0) - -#else /* !__KERNEL__ */ -#define __l_wait_event(wq, condition, info, ret, excl) \ -do { \ - int __timed_out = 0; \ - \ - for (;;) { \ - if (condition) \ - break; \ - if (liblustre_wait_event(info->lwi_timeout)) \ - continue; \ - if (info->lwi_timeout && !__timed_out) { \ - __timed_out = 1; \ - if (info->lwi_on_timeout == NULL || \ - info->lwi_on_timeout(info->lwi_cb_data)) { \ - ret = -ETIMEDOUT; \ - break; \ - } \ - } \ - } \ -} while (0) - -#endif /* __KERNEL__ */ - -#define l_wait_event(wq, condition, info) \ -({ \ - int __ret = 0; \ - struct l_wait_info *__info = (info); \ - if (!(condition)) \ - __l_wait_event(wq, condition, __info, __ret, 0); \ - __ret; \ -}) - -#define l_wait_event_exclusive(wq, condition, info) \ -({ \ - int __ret = 0; \ - struct l_wait_info *__info = (info); \ - if (!(condition)) \ - __l_wait_event(wq, condition, __info, __ret, 1); \ - __ret; \ -}) +#else +/* defined in liblustre/llite_lib.h */ +#endif #endif /* _LUSTRE_LIB_H */ - -#define LMD_MAGIC 0xbdacbdac - -#define lmd_bad_magic(LMDP) \ -({ \ - struct lustre_mount_data *_lmd__ = (LMDP); \ - int _ret__ = 0; \ - if (!_lmd__) { \ - CERROR("Missing mount data: " \ - "check that /sbin/mount.lustre is installed.\n");\ - _ret__ = 1; \ - } else if (_lmd__->lmd_magic != LMD_MAGIC) { \ - CERROR("Invalid mount data (%#x != %#x): " \ - "check that /sbin/mount.lustre is installed\n", \ - _lmd__->lmd_magic, LMD_MAGIC); \ - _ret__ = 1; \ - } \ - _ret__; \ -}) -