diff options
Diffstat (limited to 'ANDROID_3.4.5/fs/ocfs2/dlm/dlmapi.h')
| -rw-r--r-- | ANDROID_3.4.5/fs/ocfs2/dlm/dlmapi.h | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/ANDROID_3.4.5/fs/ocfs2/dlm/dlmapi.h b/ANDROID_3.4.5/fs/ocfs2/dlm/dlmapi.h deleted file mode 100644 index 3cfa114a..00000000 --- a/ANDROID_3.4.5/fs/ocfs2/dlm/dlmapi.h +++ /dev/null @@ -1,220 +0,0 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * - * dlmapi.h - * - * externally exported dlm interfaces - * - * Copyright (C) 2004 Oracle. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * 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 for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. - * - */ - -#ifndef DLMAPI_H -#define DLMAPI_H - -struct dlm_lock; -struct dlm_ctxt; - -/* NOTE: changes made to this enum should be reflected in dlmdebug.c */ -enum dlm_status { - DLM_NORMAL = 0, /* 0: request in progress */ - DLM_GRANTED, /* 1: request granted */ - DLM_DENIED, /* 2: request denied */ - DLM_DENIED_NOLOCKS, /* 3: request denied, out of system resources */ - DLM_WORKING, /* 4: async request in progress */ - DLM_BLOCKED, /* 5: lock request blocked */ - DLM_BLOCKED_ORPHAN, /* 6: lock request blocked by a orphan lock*/ - DLM_DENIED_GRACE_PERIOD, /* 7: topological change in progress */ - DLM_SYSERR, /* 8: system error */ - DLM_NOSUPPORT, /* 9: unsupported */ - DLM_CANCELGRANT, /* 10: can't cancel convert: already granted */ - DLM_IVLOCKID, /* 11: bad lockid */ - DLM_SYNC, /* 12: synchronous request granted */ - DLM_BADTYPE, /* 13: bad resource type */ - DLM_BADRESOURCE, /* 14: bad resource handle */ - DLM_MAXHANDLES, /* 15: no more resource handles */ - DLM_NOCLINFO, /* 16: can't contact cluster manager */ - DLM_NOLOCKMGR, /* 17: can't contact lock manager */ - DLM_NOPURGED, /* 18: can't contact purge daemon */ - DLM_BADARGS, /* 19: bad api args */ - DLM_VOID, /* 20: no status */ - DLM_NOTQUEUED, /* 21: NOQUEUE was specified and request failed */ - DLM_IVBUFLEN, /* 22: invalid resource name length */ - DLM_CVTUNGRANT, /* 23: attempted to convert ungranted lock */ - DLM_BADPARAM, /* 24: invalid lock mode specified */ - DLM_VALNOTVALID, /* 25: value block has been invalidated */ - DLM_REJECTED, /* 26: request rejected, unrecognized client */ - DLM_ABORT, /* 27: blocked lock request cancelled */ - DLM_CANCEL, /* 28: conversion request cancelled */ - DLM_IVRESHANDLE, /* 29: invalid resource handle */ - DLM_DEADLOCK, /* 30: deadlock recovery refused this request */ - DLM_DENIED_NOASTS, /* 31: failed to allocate AST */ - DLM_FORWARD, /* 32: request must wait for primary's response */ - DLM_TIMEOUT, /* 33: timeout value for lock has expired */ - DLM_IVGROUPID, /* 34: invalid group specification */ - DLM_VERS_CONFLICT, /* 35: version conflicts prevent request handling */ - DLM_BAD_DEVICE_PATH, /* 36: Locks device does not exist or path wrong */ - DLM_NO_DEVICE_PERMISSION, /* 37: Client has insufficient pers for device */ - DLM_NO_CONTROL_DEVICE, /* 38: Cannot set options on opened device */ - - DLM_RECOVERING, /* 39: extension, allows caller to fail a lock - request if it is being recovered */ - DLM_MIGRATING, /* 40: extension, allows caller to fail a lock - request if it is being migrated */ - DLM_MAXSTATS, /* 41: upper limit for return code validation */ -}; - -/* for pretty-printing dlm_status error messages */ -const char *dlm_errmsg(enum dlm_status err); -/* for pretty-printing dlm_status error names */ -const char *dlm_errname(enum dlm_status err); - -/* Eventually the DLM will use standard errno values, but in the - * meantime this lets us track dlm errors as they bubble up. When we - * bring its error reporting into line with the rest of the stack, - * these can just be replaced with calls to mlog_errno. */ -#define dlm_error(st) do { \ - if ((st) != DLM_RECOVERING && \ - (st) != DLM_MIGRATING && \ - (st) != DLM_FORWARD) \ - mlog(ML_ERROR, "dlm status = %s\n", dlm_errname((st))); \ -} while (0) - -#define DLM_LKSB_UNUSED1 0x01 -#define DLM_LKSB_PUT_LVB 0x02 -#define DLM_LKSB_GET_LVB 0x04 -#define DLM_LKSB_UNUSED2 0x08 -#define DLM_LKSB_UNUSED3 0x10 -#define DLM_LKSB_UNUSED4 0x20 -#define DLM_LKSB_UNUSED5 0x40 -#define DLM_LKSB_UNUSED6 0x80 - -#define DLM_LVB_LEN 64 - -/* Callers are only allowed access to the lvb and status members of - * this struct. */ -struct dlm_lockstatus { - enum dlm_status status; - u32 flags; - struct dlm_lock *lockid; - char lvb[DLM_LVB_LEN]; -}; - -/* Valid lock modes. */ -#define LKM_IVMODE (-1) /* invalid mode */ -#define LKM_NLMODE 0 /* null lock */ -#define LKM_CRMODE 1 /* concurrent read unsupported */ -#define LKM_CWMODE 2 /* concurrent write unsupported */ -#define LKM_PRMODE 3 /* protected read */ -#define LKM_PWMODE 4 /* protected write unsupported */ -#define LKM_EXMODE 5 /* exclusive */ -#define LKM_MAXMODE 5 -#define LKM_MODEMASK 0xff - -/* Flags passed to dlmlock and dlmunlock: - * reserved: flags used by the "real" dlm - * only a few are supported by this dlm - * (U) = unsupported by ocfs2 dlm */ -#define LKM_ORPHAN 0x00000010 /* this lock is orphanable (U) */ -#define LKM_PARENTABLE 0x00000020 /* this lock was orphaned (U) */ -#define LKM_BLOCK 0x00000040 /* blocking lock request (U) */ -#define LKM_LOCAL 0x00000080 /* local lock request */ -#define LKM_VALBLK 0x00000100 /* lock value block request */ -#define LKM_NOQUEUE 0x00000200 /* non blocking request */ -#define LKM_CONVERT 0x00000400 /* conversion request */ -#define LKM_NODLCKWT 0x00000800 /* this lock wont deadlock (U) */ -#define LKM_UNLOCK 0x00001000 /* deallocate this lock */ -#define LKM_CANCEL 0x00002000 /* cancel conversion request */ -#define LKM_DEQALL 0x00004000 /* remove all locks held by proc (U) */ -#define LKM_INVVALBLK 0x00008000 /* invalidate lock value block */ -#define LKM_SYNCSTS 0x00010000 /* return synchronous status if poss (U) */ -#define LKM_TIMEOUT 0x00020000 /* lock request contains timeout (U) */ -#define LKM_SNGLDLCK 0x00040000 /* request can self-deadlock (U) */ -#define LKM_FINDLOCAL 0x00080000 /* find local lock request (U) */ -#define LKM_PROC_OWNED 0x00100000 /* owned by process, not group (U) */ -#define LKM_XID 0x00200000 /* use transaction id for deadlock (U) */ -#define LKM_XID_CONFLICT 0x00400000 /* do not allow lock inheritance (U) */ -#define LKM_FORCE 0x00800000 /* force unlock flag */ -#define LKM_REVVALBLK 0x01000000 /* temporary solution: re-validate - lock value block (U) */ -/* unused */ -#define LKM_UNUSED1 0x00000001 /* unused */ -#define LKM_UNUSED2 0x00000002 /* unused */ -#define LKM_UNUSED3 0x00000004 /* unused */ -#define LKM_UNUSED4 0x00000008 /* unused */ -#define LKM_UNUSED5 0x02000000 /* unused */ -#define LKM_UNUSED6 0x04000000 /* unused */ -#define LKM_UNUSED7 0x08000000 /* unused */ - -/* ocfs2 extensions: internal only - * should never be used by caller */ -#define LKM_MIGRATION 0x10000000 /* extension: lockres is to be migrated - to another node */ -#define LKM_PUT_LVB 0x20000000 /* extension: lvb is being passed - should be applied to lockres */ -#define LKM_GET_LVB 0x40000000 /* extension: lvb should be copied - from lockres when lock is granted */ -#define LKM_RECOVERY 0x80000000 /* extension: flag for recovery lock - used to avoid recovery rwsem */ - - -typedef void (dlm_astlockfunc_t)(void *); -typedef void (dlm_bastlockfunc_t)(void *, int); -typedef void (dlm_astunlockfunc_t)(void *, enum dlm_status); - -enum dlm_status dlmlock(struct dlm_ctxt *dlm, - int mode, - struct dlm_lockstatus *lksb, - int flags, - const char *name, - int namelen, - dlm_astlockfunc_t *ast, - void *data, - dlm_bastlockfunc_t *bast); - -enum dlm_status dlmunlock(struct dlm_ctxt *dlm, - struct dlm_lockstatus *lksb, - int flags, - dlm_astunlockfunc_t *unlockast, - void *data); - -struct dlm_protocol_version { - u8 pv_major; - u8 pv_minor; -}; -struct dlm_ctxt * dlm_register_domain(const char *domain, u32 key, - struct dlm_protocol_version *fs_proto); - -void dlm_unregister_domain(struct dlm_ctxt *dlm); - -void dlm_print_one_lock(struct dlm_lock *lockid); - -typedef void (dlm_eviction_func)(int, void *); -struct dlm_eviction_cb { - struct list_head ec_item; - dlm_eviction_func *ec_func; - void *ec_data; -}; -void dlm_setup_eviction_cb(struct dlm_eviction_cb *cb, - dlm_eviction_func *f, - void *data); -void dlm_register_eviction_cb(struct dlm_ctxt *dlm, - struct dlm_eviction_cb *cb); -void dlm_unregister_eviction_cb(struct dlm_eviction_cb *cb); - -#endif /* DLMAPI_H */ |