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verdep.h @ 211

Last change on this file since 211 was 16, checked in by rock, 17 years ago

File size: 19.1 KB

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1	/***************************************************************************
2	*
3	* Copyright (C) 2001 International Business Machines
4	* All rights reserved.
5	*
6	* This file is part of the GPFS mmfslinux kernel module.
7	*
8	* Redistribution and use in source and binary forms, with or without
9	* modification, are permitted provided that the following conditions
10	* are met:
11	*
12	* 1. Redistributions of source code must retain the above copyright notice,
13	* this list of conditions and the following disclaimer.
14	* 2. Redistributions in binary form must reproduce the above copyright
15	* notice, this list of conditions and the following disclaimer in the
16	* documentation and/or other materials provided with the distribution.
17	* 3. The name of the author may not be used to endorse or promote products
18	* derived from this software without specific prior written
19	* permission.
20	*
21	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27	* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28	* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29	* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
30	* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31	*
32	*************************************************************************** */
33	/* @(#)41 1.57.1.5 src/avs/fs/mmfs/ts/kernext/gpl-linux/verdep.h, mmfs, avs_rgpfs24, rgpfs24s008a 11/10/06 11:47:24 */
34	#ifndef _h_verdep
35	#define _h_verdep
36
37	#if (LINUX_KERNEL_VERSION >= 2060000)
38	/************************************
39	* Linux 2.6 functional differences *
40	************************************/
41	# include <linux/buffer_head.h>
42	# include <linux/kdev_t.h>
43	# include <linux/namei.h>
44	# include <linux/mount.h>
45	# include <linux/page-flags.h>
46	# include <linux/security.h>
47	# include <linux/sched.h>
48	# include <linux/init.h>
49	# include <linux/fs.h>
50
51	# include <cxiTypes.h>
52	# include <cxiSystem.h>
53	# include <Logger-gpl.h>
54	# include <linux/moduleparam.h>
55
56
57	/* Inode state indicators.
58	SLES9 2.6.5-7.244+ kernels and SLES10 kernels require truncate_inode_pages
59	to be called from the delete_inode sop and check for I_WILL_FREE flag,
60	RHEL4 kernels do not (thus far). */
61	# if defined(SUSE_LINUX) && \
62	((LINUX_KERNEL_VERSION == 2060507 && \
63	SUSE_LINUX_UPDATE_SUBLEVEL >= 24400000000) \|\| \
64	LINUX_KERNEL_VERSION > 2060507)
65	# define INODE_BEING_RELEASED (I_FREEING\|I_CLEAR\|I_WILL_FREE)
66	# define INODE_IN_CACHE (I_FREEING\|I_CLEAR\|I_LOCK\|I_NEW\|I_WILL_FREE)
67	/* required if file system defines delete_inode */
68	# define MUST_TRUNCATE_INODE_PAGES 1
69	# else
70	# define INODE_BEING_RELEASED (I_FREEING\|I_CLEAR)
71	# define INODE_IN_CACHE (I_FREEING\|I_CLEAR\|I_LOCK\|I_NEW)
72	# define MUST_TRUNCATE_INODE_PAGES 0
73	# endif
74
75	/* Retrieve a new empty inode from the vfs */
76	# define NEW_INODE(SUPER) new_inode(SUPER)
77
78	/* Uncache a directory entry. Must hold dcache lock. */
79	# define DENTRY_DROP(DP) \
80	{ \
81	spin_lock(&(DP)->d_lock); \
82	__d_drop(DP); \
83	spin_unlock(&(DP)->d_lock); \
84	}
85
86	/* Uncache a directory entry. Must hold NO locks. */
87	/* __d_drop checks state of DCACHE_UNHASHED prior to drop. */
88	# define DENTRY_D_DROP(DP) \
89	{ \
90	spin_lock(&dcache_lock); \
91	spin_lock(&(DP)->d_lock); \
92	__d_drop(DP); \
93	spin_unlock(&(DP)->d_lock); \
94	spin_unlock(&dcache_lock); \
95	}
96
97	/* Check if directory is already uncached. Must hold dcache lock. */
98	# define DENTRY_UNHASHED(DP) d_unhashed(DP)
99
100	/* Mark buffer in error and call iodone routine */
101	# define BUFHEAD_ERROR_IODONE(BH) \
102	{ \
103	clear_buffer_uptodate(BH); \
104	(BHP)->b_end_io((BH), 0); \
105	}
106
107
108	#if LINUX_KERNEL_VERSION >= 2061300 \|\| \
109	(LINUX_KERNEL_VERSION == 2060507 && defined(SUSE_LINUX) && SUSE_LINUX_UPDATE_SUBLEVEL >= 13900000000)
110	#define MY_INIT_LIST_HEAD(SINODES) INIT_LIST_HEAD(SINODES)
111	#else
112	#define MY_INIT_LIST_HEAD(SINODES)
113	#endif
114
115	# define SET_SUPER_BLOCK(SBP,SOPS) \
116	{ \
117	memset((SBP), 0, sizeof(struct super_block)); \
118	(SBP)->s_op = SOPS; \
119	(SBP)->s_flags \|= MS_ACTIVE; \
120	security_sb_alloc(SBP); \
121	MY_INIT_LIST_HEAD(&((SBP)->s_inodes)); \
122	}
123
124	# define UNSET_SUPER_BLOCK(SBP) \
125	{ \
126	security_sb_free(SBP); \
127	}
128
129	# define KSTATFS kstatfs
130	# define HAS_SOP_ALLOC_INODE 1
131	# define NODE_TOO_BIG_FOR_OSNODE(SZ) 0 /* false if HAS_SOP_ALLOC_INODE */
132
133	# define DAEMONIZE(A) daemonize(A);
134	# define FOR_EACH_TASK(T) for_each_process(T)
135	# define DO_EACH_THREAD(G,T) do_each_thread(G,T)
136	# define WHILE_EACH_THREAD(G,T) while_each_thread(G,T)
137	# define NEXT_TASK(T) list_entry((T)->tasks.next, \
138	struct task_struct, tasks)
139	# define PROCESS_GROUP(T) process_group(T)
140	# define REVOKE_LEASE(INODE,MODE) break_lease(INODE,MODE)
141	# define KDEV_INT(KDEV) ((unsigned int)(KDEV))
142	# define PAGE_UP_TO_DATE(PAGE) PageUptodate(PAGE)
143	# define PAGE_UNLOCK(PAGE) unlock_page(PAGE)
144	# define HAS_IOP_REVALIDATE 0 /* uses getattr inode op instead */
145	# define HAS_SOP_READ_INODE2 0
146	# define SBLOCK_PRIVATE(SBP) (SBP)->s_fs_info
147	# define SBLOCK_BDEVNAME(SBP,BNAME) bdevname((SBP)->s_bdev,(BNAME))
148
149	# define DCACHE_DFLAGS_DISCONNECTED DCACHE_DISCONNECTED
150	# define POSIX_UNBLOCK_LOCK(FLP) posix_unblock_lock((FLP)->fl_file,(FLP))
151	# define POSIX_LOCK_FILE(FLP1,FLP2) posix_lock_file((FLP1),(FLP2))
152	# define SPIN_LOCK_IRQ(LOCK,FLAGS) spin_lock_irqsave(LOCK,FLAGS)
153	# define SPIN_UNLOCK_IRQ(LOCK,FLAGS) spin_unlock_irqrestore(LOCK,FLAGS)
154
155	# define GET_INODETIME_SEC(ITIME) (ITIME).tv_sec
156	# define CXITIME_TO_INODETIME(CXITIME, ITIME) \
157	{ \
158	(ITIME).tv_sec = (CXITIME).tv_sec; \
159	(ITIME).tv_nsec = (CXITIME).tv_nsec; \
160	}
161	# define CXITIME_FROM_INODETIME(CXITIME, ITIME) \
162	{ \
163	(CXITIME).tv_sec = (ITIME).tv_sec; \
164	(CXITIME).tv_nsec = (ITIME).tv_nsec; \
165	}
166
167	#ifdef MODULE
168	/* Module function interfaces for 2.6 kernel */
169	# define MY_INIT_FUNCTION() static int __init myModuleInit(void)
170	# define MY_EXIT_FUNCTION() static void __exit myModuleExit(void)
171	# define MY_MODULE_INCREMENT() try_module_get(THIS_MODULE)
172	# define MY_MODULE_DECREMENT() module_put(THIS_MODULE)
173
174	# define MODULE_INCREMENT(MOD) try_module_get(MOD)
175	# define MODULE_DECREMENT(MOD) module_put(MOD)
176
177	# define DEFINE_MODULE_INIT() module_init(myModuleInit)
178	# define DEFINE_MODULE_EXIT() module_exit(myModuleExit)
179	#endif /* MODULE */
180
181	#define SETUP_MODULE_PATH_PARMS \
182	char progPath[20] = "/usr/lpp/mmfs/bin/"; \
183	char *prog_path = progPath; \
184	char mmfsdPath[20] = "/usr/lpp/mmfs/bin/"; \
185	char *mmfsd_path = mmfsdPath; \
186	module_param_string(mmfsd_path, mmfsdPath, 0666, sizeof(mmfsdPath)); \
187	module_param_string(prog_path, progPath, 0666, sizeof(progPath));
188
189	/* pte functions */
190	# define PTE_OFFSET(PMDP,VADDR) pte_offset_map((PMDP),(VADDR))
191	# define PTE_UNMAP(PTEP) pte_unmap(PTEP);
192
193	/* mmap functions */
194	# define ACQUIRE_MMAP_SEM(SEM) down_write(SEM)
195	# define RELEASE_MMAP_SEM(SEM) up_write(SEM)
196
197	# define FILEMAP_FDATASYNC(RC, M) RC = filemap_fdatawrite(M)
198	# define FILEMAP_FDATAWAIT(RC, M) RC = filemap_fdatawait(M)
199
200	# define MOD_PGPGIN(amount) add_page_state(pgpgin, (amount))
201	# define MOD_PGPGOUT(amount) add_page_state(pgpgout, (amount))
202
203	#if (LINUX_KERNEL_VERSION >= 2060700)
204	#define PUTNAME __putname
205	#else
206	#define PUTNAME putname
207	#endif
208
209	#ifdef GPFS_ARCH_IA64
210	/* user addresses are below region 5 (while PAGE_OFFSET is at region 7) */
211	#define GPFS_KERNEL_OFFSET 0xa000000000000000UL
212	#elif GPFS_ARCH_I386
213	#if LINUX_KERNEL_VERSION >= 2060900
214	#define GPFS_KERNEL_OFFSET (UIntPtr) PAGE_OFFSET - (0x8000000 + 0x100000)
215	#else
216	#define GPFS_KERNEL_OFFSET (UIntPtr) PAGE_OFFSET
217	#endif /* LINUX_KERNEL_VERSION >= 2060900 */
218	#else
219	#define GPFS_KERNEL_OFFSET (UIntPtr) PAGE_OFFSET
220	#endif /* GPFS_ARCH_IA64 */
221
222	#define EXEC_HELPER(PATH,AV,EV,WAIT) call_usermodehelper(PATH,AV,EV,WAIT)
223	#define USING_MOUNT_HELPER() false
224
225	#if LINUX_KERNEL_VERSION >= 2060600 \|\| \
226	(LINUX_KERNEL_VERSION == 2060507 && defined(SUSE_LINUX) && SUSE_LINUX_UPDATE_SUBLEVEL >= 13900000000)
227	#define UNMAP_MAPPING_RANGE(MAPPING, START, STOP) unmap_shared_mapping_range(MAPPING, START, STOP);
228	#define MMAP_WRITE_ACCESS(WRITEACCESS) WRITEACCESS = true;
229	#elif defined(MMAP_LINUX_PATCH)
230	#define UNMAP_MAPPING_RANGE(MAPPING, START, STOP) invalidate_mappings(MAPPING, START);
231	#define MMAP_WRITE_ACCESS(WRITEACCESS) WRITEACCESS = true;
232	#else
233	#define UNMAP_MAPPING_RANGE(MAPPING, START, STOP)
234	#define MMAP_WRITE_ACCESS(WRITEACCESS) WRITEACCESS = false;
235	#endif
236
237	#if LINUX_KERNEL_VERSION >= 2060900
238	#define VFS_FOLLOW_LINK(RC, ND, BUF) nd_set_link(ND, BUF); BUF = NULL
239	#else
240	#define VFS_FOLLOW_LINK(RC, ND, BUF) RC = vfs_follow_link(ND, BUF)
241	#endif
242
243	#if LINUX_KERNEL_VERSION >= 2061000
244	#define MY_RLIM_CUR(WHAT) current->signal->rlim[WHAT].rlim_cur
245	#else
246	#define MY_RLIM_CUR(WHAT) current->rlim[WHAT].rlim_cur
247	#endif
248
249	#if LINUX_KERNEL_VERSION >= 2061000
250	/* generic_permission does not have a definition that is expected in
251	struct inode_operations, but it is safe to call it because the
252	only difference is in the last argument, which should not come into
253	play for a GPFS inode. Cast the definition to eliminate compiler
254	warnings. */
255	#define GENERIC_PERMISSION ((int () (struct inode , int, struct nameidata *))generic_permission)
256	#else
257	#define GENERIC_PERMISSION vfs_permission
258	#endif
259
260	#if LINUX_KERNEL_VERSION >= 2061600
261	#define d_child d_u.d_child
262	#endif
263
264	#if LINUX_KERNEL_VERSION >= 2060900
265	#define HAS_IOP_PUT_LINK
266	#endif
267
268	#define cxiDevMajor(D) ((UInt32)((D) >> 20))
269	#define cxiDevMinor(D) ((UInt32)((D) & 0xfffff))
270	#define cxiDevToKernelDev(D) new_decode_dev(D)
271	#define cxiDev32ToDev(D) \
272	(cxiDev_t)((cxiDev32Major(D) << 8) \| \
273	(cxiDev32Minor(D) & 0xFF) \| \
274	((cxiDev32Minor(D) & ~0xFF) << 12))
275
276	#if LINUX_KERNEL_VERSION >= 2061900
277	#define PRVINODE i_private
278	#else
279	#define PRVINODE u.generic_ip
280	#endif
281
282	#else /* < 2060000 */
283	/************************************
284	* Linux 2.4 functional differences *
285	********************************** */
286	# include <linux/locks.h>
287	# include <linux/kernel_stat.h>
288
289	# include <cxiTypes.h>
290	# include <cxiSystem.h>
291	# include <Logger-gpl.h>
292
293	/* Inode state indicators */
294	#define INODE_BEING_RELEASED (I_FREEING\|I_CLEAR)
295	#define INODE_IN_CACHE (I_FREEING\|I_CLEAR\|I_LOCK)
296	#define MUST_TRUNCATE_INODE_PAGES 0
297
298	#define PRVINODE u.generic_ip
299
300	#define GENERIC_PERMISSION vfs_permission
301
302	#if defined(REDHAT_AS_LINUX) \|\| defined(SUSE_LINUX) \|\|\
303	(defined(REDHAT_LINUX) && LINUX_KERNEL_VERSION >= 2041814)
304	/* Retrieve a new empty inode from the vfs */
305	# define NEW_INODE(SUPER) new_inode(SUPER)
306	#else
307	# define NEW_INODE(SUPER) get_empty_inode()
308	#endif
309
310	/* Check if directory is already uncached. Must hold dcache lock. */
311	# define DENTRY_UNHASHED(DP) list_empty(&(DP)->d_hash)
312
313	/* Uncache a directory entry. Assumes dcache lock is held */
314	# define DENTRY_DROP(DP) \
315	{ \
316	if (!DENTRY_UNHASHED((DP))) \
317	list_del_init(&(DP)->d_hash); \
318	}
319
320	/* Uncache a directory entry. Must hold NO locks. */
321	# define DENTRY_D_DROP(DP) \
322	{ \
323	spin_lock(&dcache_lock); \
324	list_del_init(&(DP)->d_hash); \
325	spin_unlock(&dcache_lock); \
326	}
327
328	/* Mark buffer in error and call iodone routine */
329	# define BUFHEAD_ERROR_IODONE(BH) buffer_IO_error(BH)
330
331	#if LINUX_KERNEL_VERSION >= 2041800
332	# define SET_SUPER_BLOCK(SBP,SOPS) \
333	{ \
334	memset((SBP), 0, sizeof(struct super_block)); \
335	(SBP)->s_op = SOPS; \
336	(SBP)->s_flags \|= MS_ACTIVE; \
337	}
338	#else
339	# define SET_SUPER_BLOCK(SBP,SOPS) \
340	{ \
341	memset((SBP), 0, sizeof(struct super_block)); \
342	(SBP)->s_op = SOPS; \
343	}
344	#endif
345	# define UNSET_SUPER_BLOCK(SBP)
346
347	#if ((defined(REDHAT_LINUX) && (LINUX_DISTRIBUTION_LEVEL >= 90)) \|\| \
348	(defined(REDHAT_AS_LINUX) && (LINUX_KERNEL_VERSION >= 2042000)))
349	# define HAS_01_SCHED_THREADING
350	#endif
351
352	#ifdef HAS_01_SCHED_THREADING
353	# define NEXT_TASK(T) list_entry((T)->tasks.next, \
354	struct task_struct, tasks)
355	# define FOR_EACH_TASK(T) for ((T) = &init_task; \
356	((T) = NEXT_TASK(T)) != &init_task; )
357	#else
358	# define FOR_EACH_TASK(T) for_each_task(T)
359	# define NEXT_TASK(T) (T)->next_task
360	#endif
361	# define DO_EACH_THREAD(G,T) FOR_EACH_TASK(T)
362	# define WHILE_EACH_THREAD(G,T)
363	# define PROCESS_GROUP(T) (T)->pgrp
364
365	# define KSTATFS statfs
366	# define HAS_SOP_ALLOC_INODE 0
367	# define NODE_TOO_BIG_FOR_OSNODE(SZ) \
368	((sizeof(((struct inode )0)->u) - sizeof(void )) < (SZ))
369
370	# define DAEMONIZE(A) do { daemonize(); reparent_to_init(); } \
371	while (0)
372	# define REVOKE_LEASE(INODE,MODE) get_lease(INODE,MODE)
373	# define KDEV_INT(KDEV) (KDEV)
374	# define PAGE_UP_TO_DATE(PAGE) Page_Uptodate(PAGE)
375	# define PAGE_UNLOCK(PAGE) UnlockPage(PAGE)
376	# define HAS_SOP_READ_INODE2 1 /* read_inode2 super block op present */
377	# define HAS_IOP_REVALIDATE 1 /* revalidate inode op present */
378	# define SBLOCK_PRIVATE(SBP) (SBP)->u.generic_sbp
379	# define SBLOCK_BDEVNAME(SBP,BNAME) bdevname((SBP)->s_dev)
380	# define BDEVNAME_SIZE 0 /* char array unneeded on 2.4 */
381
382	# define DCACHE_DFLAGS_DISCONNECTED DCACHE_NFSD_DISCONNECTED
383	# define POSIX_UNBLOCK_LOCK(FLP) posix_unblock_lock(FLP)
384	# define POSIX_LOCK_FILE(FLP1,FLP2) posix_lock_file((FLP1),(FLP2),0)
385	# define SPIN_LOCK_IRQ(LOCK,FLAGS) spin_lock_irqsave(LOCK,FLAGS)
386	# define SPIN_UNLOCK_IRQ(LOCK,FLAGS) spin_unlock_irqrestore(LOCK,FLAGS)
387
388	# define GET_INODETIME_SEC(ITIME) (ITIME)
389	# define CXITIME_TO_INODETIME(CXITIME, ITIME) \
390	{ \
391	(ITIME) = (CXITIME).tv_sec; \
392	}
393	# define CXITIME_FROM_INODETIME(CXITIME, ITIME) \
394	{ \
395	(CXITIME).tv_sec = (ITIME); \
396	(CXITIME).tv_nsec = 0; \
397	}
398
399	#ifdef MODULE
400	/* Module function interfaces for 2.4 kernel */
401	# define MY_INIT_FUNCTION() int init_module(void)
402	# define MY_EXIT_FUNCTION() void cleanup_module(void)
403	# define MY_MODULE_INCREMENT() MOD_INC_USE_COUNT
404	# define MY_MODULE_DECREMENT() if (MOD_IN_USE) \
405	MOD_DEC_USE_COUNT
406
407	# define MODULE_INCREMENT(MOD) __MOD_INC_USE_COUNT(MOD)
408	# define MODULE_DECREMENT(MOD) if (__MOD_IN_USE(MOD)) \
409	__MOD_DEC_USE_COUNT(MOD)
410	# define DEFINE_MODULE_INIT()
411	# define DEFINE_MODULE_EXIT()
412	# define SETUP_MODULE_PATH_PARMS \
413	char *prog_path = NULL; \
414	char *mmfsd_path = NULL; \
415	MODULE_PARM(prog_path,"s"); \
416	MODULE_PARM(mmfsd_path,"s");
417
418	#else
419	/* No ops if not building a module */
420	# define MY_INIT_FUNCTION() int myInit(void)
421	# define MY_EXIT_FUNCTION() void myExit(void)
422	# define MY_MODULE_INCREMENT()
423	# define MY_MODULE_DECREMENT()
424
425	# define MODULE_INCREMENT(MOD)
426	# define MODULE_DECREMENT(MOD)
427
428	# define DEFINE_MODULE_INIT() module_init(myInit)
429	# define DEFINE_MODULE_EXIT() module_exit(myExit)
430	# define SETUP_MODULE_PATH_PARMS \
431	char *prog_path = NULL; \
432	char *mmfsd_path = NULL;
433	#endif /* !MODULE */
434
435
436	/* pte functions */
437	#if defined(REDHAT_AS_LINUX) \|\| \
438	(defined(REDHAT_LINUX) && (LINUX_KERNEL_VERSION >= 2042006))
439	# define PTE_OFFSET(PMDP,VADDR) pte_offset_map((PMDP),(VADDR))
440	# define PTE_UNMAP(PTEP) pte_unmap(PTEP);
441	#else
442	# define PTE_OFFSET(PMDP,VADDR) pte_offset(PMDP, VADDR)
443	# if defined(SUSE_LINUX) && defined(GPFS_ARCH_I386)
444	# define PTE_UNMAP(PTEP) pte_kunmap(PTEP);
445	# else
446	# define PTE_UNMAP(PTEP) /* nothing */
447	# endif
448	#endif /* pte functions */
449
450	#if LINUX_KERNEL_VERSION >= 2040312 \|\| GPFS_ARCH_POWER
451	# define ACQUIRE_MMAP_SEM(SEM) down_write(SEM)
452	# define RELEASE_MMAP_SEM(SEM) up_write(SEM)
453
454	#else
455	# define ACQUIRE_MMAP_SEM(SEM) down(SEM)
456	# define RELEASE_MMAP_SEM(SEM) up(SEM)
457	#endif
458
459	#if LINUX_KERNEL_VERSION >= 2041800
460	/* Earlier kernels do not have a return code */
461	# define FILEMAP_FDATASYNC(RC, M) RC = filemap_fdatasync(M)
462	# define FILEMAP_FDATAWAIT(RC, M) RC = filemap_fdatawait(M)
463	#else
464	# define FILEMAP_FDATASYNC(RC, M) do { filemap_fdatasync(M); RC = 0; } while (0)
465	# define FILEMAP_FDATAWAIT(RC, M) do { filemap_fdatawait(M); RC = 0; } while (0)
466	#endif
467
468	#if (defined(REDHAT_AS_LINUX)) && \
469	(LINUX_KERNEL_VERSION >= 2042100)
470	# define MOD_PGPGIN(amount) kstat_percpu[smp_processor_id()].pgpgin += amount
471	# define MOD_PGPGOUT(amount) kstat_percpu[smp_processor_id()].pgpgout+= amount
472	#else
473	# define MOD_PGPGIN(amount) kstat.pgpgin += amount
474	# define MOD_PGPGOUT(amount) kstat.pgpgout += amount
475	#endif
476
477	#define PUTNAME putname
478
479	#ifdef GPFS_ARCH_IA64
480	/* user addresses are below region 5 (while PAGE_OFFSET is at region 7) */
481	#define GPFS_KERNEL_OFFSET 0xa000000000000000UL
482	#elif GPFS_ARCH_I386
483	#define GPFS_KERNEL_OFFSET (UIntPtr) PAGE_OFFSET
484	#else
485	#define GPFS_KERNEL_OFFSET (UIntPtr) PAGE_OFFSET
486	#endif /* GPFS_ARCH_IA64 */
487
488	#if defined(GPFS_ARCH_X86_64)
489	# define EXEC_HELPER(PATH,AV,EV,WAIT) exec_usermodehelper(PATH,AV,EV)
490	# define USING_MOUNT_HELPER() false
491	#else
492	# define EXEC_HELPER(PATH,AV,EV,WAIT) execve(PATH,AV,EV)
493	# define USING_MOUNT_HELPER() true
494	#endif
495
496	#ifdef MMAP_LINUX_PATCH
497	#define UNMAP_MAPPING_RANGE(MAPPING, START, STOP) invalidate_mappings(MAPPING, START);
498	#define MMAP_WRITE_ACCESS(WRITEACCESS) WRITEACCESS = true;
499	#else
500	#define UNMAP_MAPPING_RANGE(MAPPING, START, STOP)
501	#define MMAP_WRITE_ACCESS(WRITEACCESS) WRITEACCESS = false;
502	#endif
503
504	#define VFS_FOLLOW_LINK(RC, ND, BUF) RC = vfs_follow_link(ND, BUF)
505
506	#define MY_RLIM_CUR(WHAT) current->rlim[WHAT].rlim_cur
507
508	#define cxiDevMajor(D) ((Int32)(((UInt32)(D) >> 8) & 0xFF))
509	#define cxiDevMinor(D) ((Int32)((D) & 0xFF))
510
511	/* Extra defines not on other platforms to massage it back down
512	* to a linux kernel specific 16 bits.
513	*/
514	#define cxiDevToKernelDev(D) ((cxiDevMajor(D) << 8) \| (cxiDevMinor(D) & 0xFF))
515	#define cxiDev32ToDev(D) \
516	(cxiDev_t)((cxiDev32Major(D) << 8) \| (cxiDev32Minor(D) & 0xFF))
517
518	#endif /* 2.4 kernel */
519
520	/* Translate to GPFS native disk format which used high and low 16 bits
521	* for major/minor
522	*/
523	#define cxiDevToDev32(D) \
524	(cxiDev32_t)((cxiDevMajor(D) << 16) \| (cxiDevMinor(D) & 0xFFFF))
525
526	#endif /* _h_verdep */

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source: gpfs_3.1_ker2.6.20/lpp/mmfs/src/gpl-linux/verdep.h @ 211

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