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-rw-r--r--include/drm/drmP.h5
-rw-r--r--include/linux/decompress/mm.h4
-rw-r--r--include/linux/device.h12
-rw-r--r--include/linux/dst.h587
-rw-r--r--include/linux/elf.h2
-rw-r--r--include/linux/ext3_fs_sb.h2
-rw-r--r--include/linux/ext3_jbd.h7
-rw-r--r--include/linux/fs.h6
-rw-r--r--include/linux/kfifo.h554
-rw-r--r--include/linux/memory.h27
-rw-r--r--include/linux/mm.h3
-rw-r--r--include/linux/namei.h2
-rw-r--r--include/linux/perf_counter.h444
-rw-r--r--include/linux/quota.h5
-rw-r--r--include/linux/rcutiny.h5
-rw-r--r--include/linux/rcutree.h11
-rw-r--r--include/linux/sched.h13
-rw-r--r--include/linux/sysfs.h9
-rw-r--r--include/linux/usb/serial.h3
-rw-r--r--include/scsi/libiscsi.h3
-rw-r--r--include/scsi/libiscsi_tcp.h2
-rw-r--r--include/scsi/libsrp.h2
22 files changed, 598 insertions, 1110 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 19ef8ebdc662..71dafb69cfeb 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -296,6 +296,7 @@ typedef int drm_ioctl_compat_t(struct file *filp, unsigned int cmd,
296#define DRM_MASTER 0x2 296#define DRM_MASTER 0x2
297#define DRM_ROOT_ONLY 0x4 297#define DRM_ROOT_ONLY 0x4
298#define DRM_CONTROL_ALLOW 0x8 298#define DRM_CONTROL_ALLOW 0x8
299#define DRM_UNLOCKED 0x10
299 300
300struct drm_ioctl_desc { 301struct drm_ioctl_desc {
301 unsigned int cmd; 302 unsigned int cmd;
@@ -1128,8 +1129,8 @@ static inline int drm_mtrr_del(int handle, unsigned long offset,
1128 /* Driver support (drm_drv.h) */ 1129 /* Driver support (drm_drv.h) */
1129extern int drm_init(struct drm_driver *driver); 1130extern int drm_init(struct drm_driver *driver);
1130extern void drm_exit(struct drm_driver *driver); 1131extern void drm_exit(struct drm_driver *driver);
1131extern int drm_ioctl(struct inode *inode, struct file *filp, 1132extern long drm_ioctl(struct file *filp,
1132 unsigned int cmd, unsigned long arg); 1133 unsigned int cmd, unsigned long arg);
1133extern long drm_compat_ioctl(struct file *filp, 1134extern long drm_compat_ioctl(struct file *filp,
1134 unsigned int cmd, unsigned long arg); 1135 unsigned int cmd, unsigned long arg);
1135extern int drm_lastclose(struct drm_device *dev); 1136extern int drm_lastclose(struct drm_device *dev);
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 12ff8c3f1d05..5032b9a31ae7 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -25,7 +25,7 @@ static void *malloc(int size)
25 void *p; 25 void *p;
26 26
27 if (size < 0) 27 if (size < 0)
28 error("Malloc error"); 28 return NULL;
29 if (!malloc_ptr) 29 if (!malloc_ptr)
30 malloc_ptr = free_mem_ptr; 30 malloc_ptr = free_mem_ptr;
31 31
@@ -35,7 +35,7 @@ static void *malloc(int size)
35 malloc_ptr += size; 35 malloc_ptr += size;
36 36
37 if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr) 37 if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr)
38 error("Out of memory"); 38 return NULL;
39 39
40 malloc_count++; 40 malloc_count++;
41 return p; 41 return p;
diff --git a/include/linux/device.h b/include/linux/device.h
index 2a73d9bcbc9c..a62799f2ab00 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -166,9 +166,9 @@ struct driver_attribute driver_attr_##_name = \
166 __ATTR(_name, _mode, _show, _store) 166 __ATTR(_name, _mode, _show, _store)
167 167
168extern int __must_check driver_create_file(struct device_driver *driver, 168extern int __must_check driver_create_file(struct device_driver *driver,
169 struct driver_attribute *attr); 169 const struct driver_attribute *attr);
170extern void driver_remove_file(struct device_driver *driver, 170extern void driver_remove_file(struct device_driver *driver,
171 struct driver_attribute *attr); 171 const struct driver_attribute *attr);
172 172
173extern int __must_check driver_add_kobj(struct device_driver *drv, 173extern int __must_check driver_add_kobj(struct device_driver *drv,
174 struct kobject *kobj, 174 struct kobject *kobj,
@@ -319,13 +319,13 @@ struct device_attribute {
319struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) 319struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
320 320
321extern int __must_check device_create_file(struct device *device, 321extern int __must_check device_create_file(struct device *device,
322 struct device_attribute *entry); 322 const struct device_attribute *entry);
323extern void device_remove_file(struct device *dev, 323extern void device_remove_file(struct device *dev,
324 struct device_attribute *attr); 324 const struct device_attribute *attr);
325extern int __must_check device_create_bin_file(struct device *dev, 325extern int __must_check device_create_bin_file(struct device *dev,
326 struct bin_attribute *attr); 326 const struct bin_attribute *attr);
327extern void device_remove_bin_file(struct device *dev, 327extern void device_remove_bin_file(struct device *dev,
328 struct bin_attribute *attr); 328 const struct bin_attribute *attr);
329extern int device_schedule_callback_owner(struct device *dev, 329extern int device_schedule_callback_owner(struct device *dev,
330 void (*func)(struct device *dev), struct module *owner); 330 void (*func)(struct device *dev), struct module *owner);
331 331
diff --git a/include/linux/dst.h b/include/linux/dst.h
deleted file mode 100644
index e26fed84b1aa..000000000000
--- a/include/linux/dst.h
+++ /dev/null
@@ -1,587 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef __DST_H
17#define __DST_H
18
19#include <linux/types.h>
20#include <linux/connector.h>
21
22#define DST_NAMELEN 32
23#define DST_NAME "dst"
24
25enum {
26 /* Remove node with given id from storage */
27 DST_DEL_NODE = 0,
28 /* Add remote node with given id to the storage */
29 DST_ADD_REMOTE,
30 /* Add local node with given id to the storage to be exported and used by remote peers */
31 DST_ADD_EXPORT,
32 /* Crypto initialization command (hash/cipher used to protect the connection) */
33 DST_CRYPTO,
34 /* Security attributes for given connection (permissions for example) */
35 DST_SECURITY,
36 /* Register given node in the block layer subsystem */
37 DST_START,
38 DST_CMD_MAX
39};
40
41struct dst_ctl
42{
43 /* Storage name */
44 char name[DST_NAMELEN];
45 /* Command flags */
46 __u32 flags;
47 /* Command itself (see above) */
48 __u32 cmd;
49 /* Maximum number of pages per single request in this device */
50 __u32 max_pages;
51 /* Stale/error transaction scanning timeout in milliseconds */
52 __u32 trans_scan_timeout;
53 /* Maximum number of retry sends before completing transaction as broken */
54 __u32 trans_max_retries;
55 /* Storage size */
56 __u64 size;
57};
58
59/* Reply command carries completion status */
60struct dst_ctl_ack
61{
62 struct cn_msg msg;
63 int error;
64 int unused[3];
65};
66
67/*
68 * Unfortunaltely socket address structure is not exported to userspace
69 * and is redefined there.
70 */
71#define SADDR_MAX_DATA 128
72
73struct saddr {
74 /* address family, AF_xxx */
75 unsigned short sa_family;
76 /* 14 bytes of protocol address */
77 char sa_data[SADDR_MAX_DATA];
78 /* Number of bytes used in sa_data */
79 unsigned short sa_data_len;
80};
81
82/* Address structure */
83struct dst_network_ctl
84{
85 /* Socket type: datagram, stream...*/
86 unsigned int type;
87 /* Let me guess, is it a Jupiter diameter? */
88 unsigned int proto;
89 /* Peer's address */
90 struct saddr addr;
91};
92
93struct dst_crypto_ctl
94{
95 /* Cipher and hash names */
96 char cipher_algo[DST_NAMELEN];
97 char hash_algo[DST_NAMELEN];
98
99 /* Key sizes. Can be zero for digest for example */
100 unsigned int cipher_keysize, hash_keysize;
101 /* Alignment. Calculated by the DST itself. */
102 unsigned int crypto_attached_size;
103 /* Number of threads to perform crypto operations */
104 int thread_num;
105};
106
107/* Export security attributes have this bits checked in when client connects */
108#define DST_PERM_READ (1<<0)
109#define DST_PERM_WRITE (1<<1)
110
111/*
112 * Right now it is simple model, where each remote address
113 * is assigned to set of permissions it is allowed to perform.
114 * In real world block device does not know anything but
115 * reading and writing, so it should be more than enough.
116 */
117struct dst_secure_user
118{
119 unsigned int permissions;
120 struct saddr addr;
121};
122
123/*
124 * Export control command: device to export and network address to accept
125 * clients to work with given device
126 */
127struct dst_export_ctl
128{
129 char device[DST_NAMELEN];
130 struct dst_network_ctl ctl;
131};
132
133enum {
134 DST_CFG = 1, /* Request remote configuration */
135 DST_IO, /* IO command */
136 DST_IO_RESPONSE, /* IO response */
137 DST_PING, /* Keepalive message */
138 DST_NCMD_MAX,
139};
140
141struct dst_cmd
142{
143 /* Network command itself, see above */
144 __u32 cmd;
145 /*
146 * Size of the attached data
147 * (in most cases, for READ command it means how many bytes were requested)
148 */
149 __u32 size;
150 /* Crypto size: number of attached bytes with digest/hmac */
151 __u32 csize;
152 /* Here we can carry secret data */
153 __u32 reserved;
154 /* Read/write bits, see how they are encoded in bio structure */
155 __u64 rw;
156 /* BIO flags */
157 __u64 flags;
158 /* Unique command id (like transaction ID) */
159 __u64 id;
160 /* Sector to start IO from */
161 __u64 sector;
162 /* Hash data is placed after this header */
163 __u8 hash[0];
164};
165
166/*
167 * Convert command to/from network byte order.
168 * We do not use hton*() functions, since there is
169 * no 64-bit implementation.
170 */
171static inline void dst_convert_cmd(struct dst_cmd *c)
172{
173 c->cmd = __cpu_to_be32(c->cmd);
174 c->csize = __cpu_to_be32(c->csize);
175 c->size = __cpu_to_be32(c->size);
176 c->sector = __cpu_to_be64(c->sector);
177 c->id = __cpu_to_be64(c->id);
178 c->flags = __cpu_to_be64(c->flags);
179 c->rw = __cpu_to_be64(c->rw);
180}
181
182/* Transaction id */
183typedef __u64 dst_gen_t;
184
185#ifdef __KERNEL__
186
187#include <linux/blkdev.h>
188#include <linux/bio.h>
189#include <linux/device.h>
190#include <linux/mempool.h>
191#include <linux/net.h>
192#include <linux/poll.h>
193#include <linux/rbtree.h>
194
195#ifdef CONFIG_DST_DEBUG
196#define dprintk(f, a...) printk(KERN_NOTICE f, ##a)
197#else
198static inline void __attribute__ ((format (printf, 1, 2)))
199 dprintk(const char *fmt, ...) {}
200#endif
201
202struct dst_node;
203
204struct dst_trans
205{
206 /* DST node we are working with */
207 struct dst_node *n;
208
209 /* Entry inside transaction tree */
210 struct rb_node trans_entry;
211
212 /* Merlin kills this transaction when this memory cell equals zero */
213 atomic_t refcnt;
214
215 /* How this transaction should be processed by crypto engine */
216 short enc;
217 /* How many times this transaction was resent */
218 short retries;
219 /* Completion status */
220 int error;
221
222 /* When did we send it to the remote peer */
223 long send_time;
224
225 /* My name is...
226 * Well, computers does not speak, they have unique id instead */
227 dst_gen_t gen;
228
229 /* Block IO we are working with */
230 struct bio *bio;
231
232 /* Network command for above block IO request */
233 struct dst_cmd cmd;
234};
235
236struct dst_crypto_engine
237{
238 /* What should we do with all block requests */
239 struct crypto_hash *hash;
240 struct crypto_ablkcipher *cipher;
241
242 /* Pool of pages used to encrypt data into before sending */
243 int page_num;
244 struct page **pages;
245
246 /* What to do with current request */
247 int enc;
248 /* Who we are and where do we go */
249 struct scatterlist *src, *dst;
250
251 /* Maximum timeout waiting for encryption to be completed */
252 long timeout;
253 /* IV is a 64-bit sequential counter */
254 u64 iv;
255
256 /* Secret data */
257 void *private;
258
259 /* Cached temporary data lives here */
260 int size;
261 void *data;
262};
263
264struct dst_state
265{
266 /* The main state protection */
267 struct mutex state_lock;
268
269 /* Polling machinery for sockets */
270 wait_queue_t wait;
271 wait_queue_head_t *whead;
272 /* Most of events are being waited here */
273 wait_queue_head_t thread_wait;
274
275 /* Who owns this? */
276 struct dst_node *node;
277
278 /* Network address for this state */
279 struct dst_network_ctl ctl;
280
281 /* Permissions to work with: read-only or rw connection */
282 u32 permissions;
283
284 /* Called when we need to clean private data */
285 void (* cleanup)(struct dst_state *st);
286
287 /* Used by the server: BIO completion queues BIOs here */
288 struct list_head request_list;
289 spinlock_t request_lock;
290
291 /* Guess what? No, it is not number of planets */
292 atomic_t refcnt;
293
294 /* This flags is set when connection should be dropped */
295 int need_exit;
296
297 /*
298 * Socket to work with. Second pointer is used for
299 * lockless check if socket was changed before performing
300 * next action (like working with cached polling result)
301 */
302 struct socket *socket, *read_socket;
303
304 /* Cached preallocated data */
305 void *data;
306 unsigned int size;
307
308 /* Currently processed command */
309 struct dst_cmd cmd;
310};
311
312struct dst_info
313{
314 /* Device size */
315 u64 size;
316
317 /* Local device name for export devices */
318 char local[DST_NAMELEN];
319
320 /* Network setup */
321 struct dst_network_ctl net;
322
323 /* Sysfs bits use this */
324 struct device device;
325};
326
327struct dst_node
328{
329 struct list_head node_entry;
330
331 /* Hi, my name is stored here */
332 char name[DST_NAMELEN];
333 /* My cache name is stored here */
334 char cache_name[DST_NAMELEN];
335
336 /* Block device attached to given node.
337 * Only valid for exporting nodes */
338 struct block_device *bdev;
339 /* Network state machine for given peer */
340 struct dst_state *state;
341
342 /* Block IO machinery */
343 struct request_queue *queue;
344 struct gendisk *disk;
345
346 /* Number of threads in processing pool */
347 int thread_num;
348 /* Maximum number of pages in single IO */
349 int max_pages;
350
351 /* I'm that big in bytes */
352 loff_t size;
353
354 /* Exported to userspace node information */
355 struct dst_info *info;
356
357 /*
358 * Security attribute list.
359 * Used only by exporting node currently.
360 */
361 struct list_head security_list;
362 struct mutex security_lock;
363
364 /*
365 * When this unerflows below zero, university collapses.
366 * But this will not happen, since node will be freed,
367 * when reference counter reaches zero.
368 */
369 atomic_t refcnt;
370
371 /* How precisely should I be started? */
372 int (*start)(struct dst_node *);
373
374 /* Crypto capabilities */
375 struct dst_crypto_ctl crypto;
376 u8 *hash_key;
377 u8 *cipher_key;
378
379 /* Pool of processing thread */
380 struct thread_pool *pool;
381
382 /* Transaction IDs live here */
383 atomic_long_t gen;
384
385 /*
386 * How frequently and how many times transaction
387 * tree should be scanned to drop stale objects.
388 */
389 long trans_scan_timeout;
390 int trans_max_retries;
391
392 /* Small gnomes live here */
393 struct rb_root trans_root;
394 struct mutex trans_lock;
395
396 /*
397 * Transaction cache/memory pool.
398 * It is big enough to contain not only transaction
399 * itself, but additional crypto data (digest/hmac).
400 */
401 struct kmem_cache *trans_cache;
402 mempool_t *trans_pool;
403
404 /* This entity scans transaction tree */
405 struct delayed_work trans_work;
406
407 wait_queue_head_t wait;
408};
409
410/* Kernel representation of the security attribute */
411struct dst_secure
412{
413 struct list_head sec_entry;
414 struct dst_secure_user sec;
415};
416
417int dst_process_bio(struct dst_node *n, struct bio *bio);
418
419int dst_node_init_connected(struct dst_node *n, struct dst_network_ctl *r);
420int dst_node_init_listened(struct dst_node *n, struct dst_export_ctl *le);
421
422static inline struct dst_state *dst_state_get(struct dst_state *st)
423{
424 BUG_ON(atomic_read(&st->refcnt) == 0);
425 atomic_inc(&st->refcnt);
426 return st;
427}
428
429void dst_state_put(struct dst_state *st);
430
431struct dst_state *dst_state_alloc(struct dst_node *n);
432int dst_state_socket_create(struct dst_state *st);
433void dst_state_socket_release(struct dst_state *st);
434
435void dst_state_exit_connected(struct dst_state *st);
436
437int dst_state_schedule_receiver(struct dst_state *st);
438
439void dst_dump_addr(struct socket *sk, struct sockaddr *sa, char *str);
440
441static inline void dst_state_lock(struct dst_state *st)
442{
443 mutex_lock(&st->state_lock);
444}
445
446static inline void dst_state_unlock(struct dst_state *st)
447{
448 mutex_unlock(&st->state_lock);
449}
450
451void dst_poll_exit(struct dst_state *st);
452int dst_poll_init(struct dst_state *st);
453
454static inline unsigned int dst_state_poll(struct dst_state *st)
455{
456 unsigned int revents = POLLHUP | POLLERR;
457
458 dst_state_lock(st);
459 if (st->socket)
460 revents = st->socket->ops->poll(NULL, st->socket, NULL);
461 dst_state_unlock(st);
462
463 return revents;
464}
465
466static inline int dst_thread_setup(void *private, void *data)
467{
468 return 0;
469}
470
471void dst_node_put(struct dst_node *n);
472
473static inline struct dst_node *dst_node_get(struct dst_node *n)
474{
475 atomic_inc(&n->refcnt);
476 return n;
477}
478
479int dst_data_recv(struct dst_state *st, void *data, unsigned int size);
480int dst_recv_cdata(struct dst_state *st, void *cdata);
481int dst_data_send_header(struct socket *sock,
482 void *data, unsigned int size, int more);
483
484int dst_send_bio(struct dst_state *st, struct dst_cmd *cmd, struct bio *bio);
485
486int dst_process_io(struct dst_state *st);
487int dst_export_crypto(struct dst_node *n, struct bio *bio);
488int dst_export_send_bio(struct bio *bio);
489int dst_start_export(struct dst_node *n);
490
491int __init dst_export_init(void);
492void dst_export_exit(void);
493
494/* Private structure for export block IO requests */
495struct dst_export_priv
496{
497 struct list_head request_entry;
498 struct dst_state *state;
499 struct bio *bio;
500 struct dst_cmd cmd;
501};
502
503static inline void dst_trans_get(struct dst_trans *t)
504{
505 atomic_inc(&t->refcnt);
506}
507
508struct dst_trans *dst_trans_search(struct dst_node *node, dst_gen_t gen);
509int dst_trans_remove(struct dst_trans *t);
510int dst_trans_remove_nolock(struct dst_trans *t);
511void dst_trans_put(struct dst_trans *t);
512
513/*
514 * Convert bio into network command.
515 */
516static inline void dst_bio_to_cmd(struct bio *bio, struct dst_cmd *cmd,
517 u32 command, u64 id)
518{
519 cmd->cmd = command;
520 cmd->flags = (bio->bi_flags << BIO_POOL_BITS) >> BIO_POOL_BITS;
521 cmd->rw = bio->bi_rw;
522 cmd->size = bio->bi_size;
523 cmd->csize = 0;
524 cmd->id = id;
525 cmd->sector = bio->bi_sector;
526};
527
528int dst_trans_send(struct dst_trans *t);
529int dst_trans_crypto(struct dst_trans *t);
530
531int dst_node_crypto_init(struct dst_node *n, struct dst_crypto_ctl *ctl);
532void dst_node_crypto_exit(struct dst_node *n);
533
534static inline int dst_need_crypto(struct dst_node *n)
535{
536 struct dst_crypto_ctl *c = &n->crypto;
537 /*
538 * Logical OR is appropriate here, but boolean one produces
539 * more optimal code, so it is used instead.
540 */
541 return (c->hash_algo[0] | c->cipher_algo[0]);
542}
543
544int dst_node_trans_init(struct dst_node *n, unsigned int size);
545void dst_node_trans_exit(struct dst_node *n);
546
547/*
548 * Pool of threads.
549 * Ready list contains threads currently free to be used,
550 * active one contains threads with some work scheduled for them.
551 * Caller can wait in given queue when thread is ready.
552 */
553struct thread_pool
554{
555 int thread_num;
556 struct mutex thread_lock;
557 struct list_head ready_list, active_list;
558
559 wait_queue_head_t wait;
560};
561
562void thread_pool_del_worker(struct thread_pool *p);
563void thread_pool_del_worker_id(struct thread_pool *p, unsigned int id);
564int thread_pool_add_worker(struct thread_pool *p,
565 char *name,
566 unsigned int id,
567 void *(* init)(void *data),
568 void (* cleanup)(void *data),
569 void *data);
570
571void thread_pool_destroy(struct thread_pool *p);
572struct thread_pool *thread_pool_create(int num, char *name,
573 void *(* init)(void *data),
574 void (* cleanup)(void *data),
575 void *data);
576
577int thread_pool_schedule(struct thread_pool *p,
578 int (* setup)(void *stored_private, void *setup_data),
579 int (* action)(void *stored_private, void *setup_data),
580 void *setup_data, long timeout);
581int thread_pool_schedule_private(struct thread_pool *p,
582 int (* setup)(void *private, void *data),
583 int (* action)(void *private, void *data),
584 void *data, long timeout, void *id);
585
586#endif /* __KERNEL__ */
587#endif /* __DST_H */
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 90a4ed0ea0e5..0cc4d55151b7 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -361,7 +361,7 @@ typedef struct elf64_shdr {
361#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */ 361#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
362#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */ 362#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
363#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */ 363#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
364#define NT_PRXSTATUS 0x300 /* s390 upper register halves */ 364#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
365 365
366 366
367/* Note header in a PT_NOTE section */ 367/* Note header in a PT_NOTE section */
diff --git a/include/linux/ext3_fs_sb.h b/include/linux/ext3_fs_sb.h
index f07f34de2f0e..258088ab3c6b 100644
--- a/include/linux/ext3_fs_sb.h
+++ b/include/linux/ext3_fs_sb.h
@@ -72,6 +72,8 @@ struct ext3_sb_info {
72 struct inode * s_journal_inode; 72 struct inode * s_journal_inode;
73 struct journal_s * s_journal; 73 struct journal_s * s_journal;
74 struct list_head s_orphan; 74 struct list_head s_orphan;
75 struct mutex s_orphan_lock;
76 struct mutex s_resize_lock;
75 unsigned long s_commit_interval; 77 unsigned long s_commit_interval;
76 struct block_device *journal_bdev; 78 struct block_device *journal_bdev;
77#ifdef CONFIG_JBD_DEBUG 79#ifdef CONFIG_JBD_DEBUG
diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h
index cf82d519be40..d7b5ddca99c2 100644
--- a/include/linux/ext3_jbd.h
+++ b/include/linux/ext3_jbd.h
@@ -44,13 +44,13 @@
44 44
45#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \ 45#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \
46 EXT3_XATTR_TRANS_BLOCKS - 2 + \ 46 EXT3_XATTR_TRANS_BLOCKS - 2 + \
47 2*EXT3_QUOTA_TRANS_BLOCKS(sb)) 47 EXT3_MAXQUOTAS_TRANS_BLOCKS(sb))
48 48
49/* Delete operations potentially hit one directory's namespace plus an 49/* Delete operations potentially hit one directory's namespace plus an
50 * entire inode, plus arbitrary amounts of bitmap/indirection data. Be 50 * entire inode, plus arbitrary amounts of bitmap/indirection data. Be
51 * generous. We can grow the delete transaction later if necessary. */ 51 * generous. We can grow the delete transaction later if necessary. */
52 52
53#define EXT3_DELETE_TRANS_BLOCKS(sb) (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64) 53#define EXT3_DELETE_TRANS_BLOCKS(sb) (EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) + 64)
54 54
55/* Define an arbitrary limit for the amount of data we will anticipate 55/* Define an arbitrary limit for the amount of data we will anticipate
56 * writing to any given transaction. For unbounded transactions such as 56 * writing to any given transaction. For unbounded transactions such as
@@ -86,6 +86,9 @@
86#define EXT3_QUOTA_INIT_BLOCKS(sb) 0 86#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
87#define EXT3_QUOTA_DEL_BLOCKS(sb) 0 87#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
88#endif 88#endif
89#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb))
90#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb))
91#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb))
89 92
90int 93int
91ext3_mark_iloc_dirty(handle_t *handle, 94ext3_mark_iloc_dirty(handle_t *handle,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index cca191933ff6..9147ca88f253 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1624,8 +1624,6 @@ struct super_operations {
1624 * on the bit address once it is done. 1624 * on the bit address once it is done.
1625 * 1625 *
1626 * Q: What is the difference between I_WILL_FREE and I_FREEING? 1626 * Q: What is the difference between I_WILL_FREE and I_FREEING?
1627 * Q: igrab() only checks on (I_FREEING|I_WILL_FREE). Should it also check on
1628 * I_CLEAR? If not, why?
1629 */ 1627 */
1630#define I_DIRTY_SYNC 1 1628#define I_DIRTY_SYNC 1
1631#define I_DIRTY_DATASYNC 2 1629#define I_DIRTY_DATASYNC 2
@@ -2299,6 +2297,7 @@ extern const struct inode_operations page_symlink_inode_operations;
2299extern int generic_readlink(struct dentry *, char __user *, int); 2297extern int generic_readlink(struct dentry *, char __user *, int);
2300extern void generic_fillattr(struct inode *, struct kstat *); 2298extern void generic_fillattr(struct inode *, struct kstat *);
2301extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); 2299extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
2300void __inode_add_bytes(struct inode *inode, loff_t bytes);
2302void inode_add_bytes(struct inode *inode, loff_t bytes); 2301void inode_add_bytes(struct inode *inode, loff_t bytes);
2303void inode_sub_bytes(struct inode *inode, loff_t bytes); 2302void inode_sub_bytes(struct inode *inode, loff_t bytes);
2304loff_t inode_get_bytes(struct inode *inode); 2303loff_t inode_get_bytes(struct inode *inode);
@@ -2464,5 +2463,8 @@ int proc_nr_files(struct ctl_table *table, int write,
2464 2463
2465int __init get_filesystem_list(char *buf); 2464int __init get_filesystem_list(char *buf);
2466 2465
2466#define ACC_MODE(x) ("\000\004\002\006"[(x)&O_ACCMODE])
2467#define OPEN_FMODE(flag) ((__force fmode_t)((flag + 1) & O_ACCMODE))
2468
2467#endif /* __KERNEL__ */ 2469#endif /* __KERNEL__ */
2468#endif /* _LINUX_FS_H */ 2470#endif /* _LINUX_FS_H */
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index ad6bdf5a5970..3d44e9c65a8e 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -1,6 +1,7 @@
1/* 1/*
2 * A simple kernel FIFO implementation. 2 * A generic kernel FIFO implementation.
3 * 3 *
4 * Copyright (C) 2009 Stefani Seibold <stefani@seibold.net>
4 * Copyright (C) 2004 Stelian Pop <stelian@popies.net> 5 * Copyright (C) 2004 Stelian Pop <stelian@popies.net>
5 * 6 *
6 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
@@ -18,6 +19,25 @@
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 * 20 *
20 */ 21 */
22
23/*
24 * Howto porting drivers to the new generic fifo API:
25 *
26 * - Modify the declaration of the "struct kfifo *" object into a
27 * in-place "struct kfifo" object
28 * - Init the in-place object with kfifo_alloc() or kfifo_init()
29 * Note: The address of the in-place "struct kfifo" object must be
30 * passed as the first argument to this functions
31 * - Replace the use of __kfifo_put into kfifo_in and __kfifo_get
32 * into kfifo_out
33 * - Replace the use of kfifo_put into kfifo_in_locked and kfifo_get
34 * into kfifo_out_locked
35 * Note: the spinlock pointer formerly passed to kfifo_init/kfifo_alloc
36 * must be passed now to the kfifo_in_locked and kfifo_out_locked
37 * as the last parameter.
38 * - All formerly name __kfifo_* functions has been renamed into kfifo_*
39 */
40
21#ifndef _LINUX_KFIFO_H 41#ifndef _LINUX_KFIFO_H
22#define _LINUX_KFIFO_H 42#define _LINUX_KFIFO_H
23 43
@@ -29,124 +49,562 @@ struct kfifo {
29 unsigned int size; /* the size of the allocated buffer */ 49 unsigned int size; /* the size of the allocated buffer */
30 unsigned int in; /* data is added at offset (in % size) */ 50 unsigned int in; /* data is added at offset (in % size) */
31 unsigned int out; /* data is extracted from off. (out % size) */ 51 unsigned int out; /* data is extracted from off. (out % size) */
32 spinlock_t *lock; /* protects concurrent modifications */
33}; 52};
34 53
35extern struct kfifo *kfifo_init(unsigned char *buffer, unsigned int size, 54/*
36 gfp_t gfp_mask, spinlock_t *lock); 55 * Macros for declaration and initialization of the kfifo datatype
37extern struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask, 56 */
38 spinlock_t *lock); 57
58/* helper macro */
59#define __kfifo_initializer(s, b) \
60 (struct kfifo) { \
61 .size = s, \
62 .in = 0, \
63 .out = 0, \
64 .buffer = b \
65 }
66
67/**
68 * DECLARE_KFIFO - macro to declare a kfifo and the associated buffer
69 * @name: name of the declared kfifo datatype
70 * @size: size of the fifo buffer
71 *
72 * Note1: the macro can be used inside struct or union declaration
73 * Note2: the macro creates two objects:
74 * A kfifo object with the given name and a buffer for the kfifo
75 * object named name##kfifo_buffer
76 */
77#define DECLARE_KFIFO(name, size) \
78union { \
79 struct kfifo name; \
80 unsigned char name##kfifo_buffer[size + sizeof(struct kfifo)]; \
81}
82
83/**
84 * INIT_KFIFO - Initialize a kfifo declared by DECLARED_KFIFO
85 * @name: name of the declared kfifo datatype
86 */
87#define INIT_KFIFO(name) \
88 name = __kfifo_initializer(sizeof(name##kfifo_buffer) - \
89 sizeof(struct kfifo), name##kfifo_buffer)
90
91/**
92 * DEFINE_KFIFO - macro to define and initialize a kfifo
93 * @name: name of the declared kfifo datatype
94 * @size: size of the fifo buffer
95 *
96 * Note1: the macro can be used for global and local kfifo data type variables
97 * Note2: the macro creates two objects:
98 * A kfifo object with the given name and a buffer for the kfifo
99 * object named name##kfifo_buffer
100 */
101#define DEFINE_KFIFO(name, size) \
102 unsigned char name##kfifo_buffer[size]; \
103 struct kfifo name = __kfifo_initializer(size, name##kfifo_buffer)
104
105#undef __kfifo_initializer
106
107extern void kfifo_init(struct kfifo *fifo, unsigned char *buffer,
108 unsigned int size);
109extern __must_check int kfifo_alloc(struct kfifo *fifo, unsigned int size,
110 gfp_t gfp_mask);
39extern void kfifo_free(struct kfifo *fifo); 111extern void kfifo_free(struct kfifo *fifo);
40extern unsigned int __kfifo_put(struct kfifo *fifo, 112extern unsigned int kfifo_in(struct kfifo *fifo,
41 const unsigned char *buffer, unsigned int len); 113 const unsigned char *from, unsigned int len);
42extern unsigned int __kfifo_get(struct kfifo *fifo, 114extern __must_check unsigned int kfifo_out(struct kfifo *fifo,
43 unsigned char *buffer, unsigned int len); 115 unsigned char *to, unsigned int len);
44 116
45/** 117/**
46 * __kfifo_reset - removes the entire FIFO contents, no locking version 118 * kfifo_reset - removes the entire FIFO contents
47 * @fifo: the fifo to be emptied. 119 * @fifo: the fifo to be emptied.
48 */ 120 */
49static inline void __kfifo_reset(struct kfifo *fifo) 121static inline void kfifo_reset(struct kfifo *fifo)
50{ 122{
51 fifo->in = fifo->out = 0; 123 fifo->in = fifo->out = 0;
52} 124}
53 125
54/** 126/**
55 * kfifo_reset - removes the entire FIFO contents 127 * kfifo_reset_out - skip FIFO contents
56 * @fifo: the fifo to be emptied. 128 * @fifo: the fifo to be emptied.
57 */ 129 */
58static inline void kfifo_reset(struct kfifo *fifo) 130static inline void kfifo_reset_out(struct kfifo *fifo)
59{ 131{
60 unsigned long flags; 132 smp_mb();
133 fifo->out = fifo->in;
134}
61 135
62 spin_lock_irqsave(fifo->lock, flags); 136/**
137 * kfifo_size - returns the size of the fifo in bytes
138 * @fifo: the fifo to be used.
139 */
140static inline __must_check unsigned int kfifo_size(struct kfifo *fifo)
141{
142 return fifo->size;
143}
63 144
64 __kfifo_reset(fifo); 145/**
146 * kfifo_len - returns the number of used bytes in the FIFO
147 * @fifo: the fifo to be used.
148 */
149static inline unsigned int kfifo_len(struct kfifo *fifo)
150{
151 register unsigned int out;
65 152
66 spin_unlock_irqrestore(fifo->lock, flags); 153 out = fifo->out;
154 smp_rmb();
155 return fifo->in - out;
67} 156}
68 157
69/** 158/**
70 * kfifo_put - puts some data into the FIFO 159 * kfifo_is_empty - returns true if the fifo is empty
71 * @fifo: the fifo to be used. 160 * @fifo: the fifo to be used.
72 * @buffer: the data to be added. 161 */
73 * @len: the length of the data to be added. 162static inline __must_check int kfifo_is_empty(struct kfifo *fifo)
163{
164 return fifo->in == fifo->out;
165}
166
167/**
168 * kfifo_is_full - returns true if the fifo is full
169 * @fifo: the fifo to be used.
170 */
171static inline __must_check int kfifo_is_full(struct kfifo *fifo)
172{
173 return kfifo_len(fifo) == kfifo_size(fifo);
174}
175
176/**
177 * kfifo_avail - returns the number of bytes available in the FIFO
178 * @fifo: the fifo to be used.
179 */
180static inline __must_check unsigned int kfifo_avail(struct kfifo *fifo)
181{
182 return kfifo_size(fifo) - kfifo_len(fifo);
183}
184
185/**
186 * kfifo_in_locked - puts some data into the FIFO using a spinlock for locking
187 * @fifo: the fifo to be used.
188 * @from: the data to be added.
189 * @n: the length of the data to be added.
190 * @lock: pointer to the spinlock to use for locking.
74 * 191 *
75 * This function copies at most @len bytes from the @buffer into 192 * This function copies at most @len bytes from the @from buffer into
76 * the FIFO depending on the free space, and returns the number of 193 * the FIFO depending on the free space, and returns the number of
77 * bytes copied. 194 * bytes copied.
78 */ 195 */
79static inline unsigned int kfifo_put(struct kfifo *fifo, 196static inline unsigned int kfifo_in_locked(struct kfifo *fifo,
80 const unsigned char *buffer, unsigned int len) 197 const unsigned char *from, unsigned int n, spinlock_t *lock)
81{ 198{
82 unsigned long flags; 199 unsigned long flags;
83 unsigned int ret; 200 unsigned int ret;
84 201
85 spin_lock_irqsave(fifo->lock, flags); 202 spin_lock_irqsave(lock, flags);
86 203
87 ret = __kfifo_put(fifo, buffer, len); 204 ret = kfifo_in(fifo, from, n);
88 205
89 spin_unlock_irqrestore(fifo->lock, flags); 206 spin_unlock_irqrestore(lock, flags);
90 207
91 return ret; 208 return ret;
92} 209}
93 210
94/** 211/**
95 * kfifo_get - gets some data from the FIFO 212 * kfifo_out_locked - gets some data from the FIFO using a spinlock for locking
96 * @fifo: the fifo to be used. 213 * @fifo: the fifo to be used.
97 * @buffer: where the data must be copied. 214 * @to: where the data must be copied.
98 * @len: the size of the destination buffer. 215 * @n: the size of the destination buffer.
216 * @lock: pointer to the spinlock to use for locking.
99 * 217 *
100 * This function copies at most @len bytes from the FIFO into the 218 * This function copies at most @len bytes from the FIFO into the
101 * @buffer and returns the number of copied bytes. 219 * @to buffer and returns the number of copied bytes.
102 */ 220 */
103static inline unsigned int kfifo_get(struct kfifo *fifo, 221static inline __must_check unsigned int kfifo_out_locked(struct kfifo *fifo,
104 unsigned char *buffer, unsigned int len) 222 unsigned char *to, unsigned int n, spinlock_t *lock)
105{ 223{
106 unsigned long flags; 224 unsigned long flags;
107 unsigned int ret; 225 unsigned int ret;
108 226
109 spin_lock_irqsave(fifo->lock, flags); 227 spin_lock_irqsave(lock, flags);
110 228
111 ret = __kfifo_get(fifo, buffer, len); 229 ret = kfifo_out(fifo, to, n);
112 230
113 /* 231 /*
114 * optimization: if the FIFO is empty, set the indices to 0 232 * optimization: if the FIFO is empty, set the indices to 0
115 * so we don't wrap the next time 233 * so we don't wrap the next time
116 */ 234 */
117 if (fifo->in == fifo->out) 235 if (kfifo_is_empty(fifo))
118 fifo->in = fifo->out = 0; 236 kfifo_reset(fifo);
237
238 spin_unlock_irqrestore(lock, flags);
239
240 return ret;
241}
242
243extern void kfifo_skip(struct kfifo *fifo, unsigned int len);
244
245extern __must_check unsigned int kfifo_from_user(struct kfifo *fifo,
246 const void __user *from, unsigned int n);
247
248extern __must_check unsigned int kfifo_to_user(struct kfifo *fifo,
249 void __user *to, unsigned int n);
250
251/*
252 * __kfifo_add_out internal helper function for updating the out offset
253 */
254static inline void __kfifo_add_out(struct kfifo *fifo,
255 unsigned int off)
256{
257 smp_mb();
258 fifo->out += off;
259}
260
261/*
262 * __kfifo_add_in internal helper function for updating the in offset
263 */
264static inline void __kfifo_add_in(struct kfifo *fifo,
265 unsigned int off)
266{
267 smp_wmb();
268 fifo->in += off;
269}
270
271/*
272 * __kfifo_off internal helper function for calculating the index of a
273 * given offeset
274 */
275static inline unsigned int __kfifo_off(struct kfifo *fifo, unsigned int off)
276{
277 return off & (fifo->size - 1);
278}
279
280/*
281 * __kfifo_peek_n internal helper function for determinate the length of
282 * the next record in the fifo
283 */
284static inline unsigned int __kfifo_peek_n(struct kfifo *fifo,
285 unsigned int recsize)
286{
287#define __KFIFO_GET(fifo, off, shift) \
288 ((fifo)->buffer[__kfifo_off((fifo), (fifo)->out+(off))] << (shift))
289
290 unsigned int l;
291
292 l = __KFIFO_GET(fifo, 0, 0);
293
294 if (--recsize)
295 l |= __KFIFO_GET(fifo, 1, 8);
296
297 return l;
298#undef __KFIFO_GET
299}
300
301/*
302 * __kfifo_poke_n internal helper function for storing the length of
303 * the next record into the fifo
304 */
305static inline void __kfifo_poke_n(struct kfifo *fifo,
306 unsigned int recsize, unsigned int n)
307{
308#define __KFIFO_PUT(fifo, off, val, shift) \
309 ( \
310 (fifo)->buffer[__kfifo_off((fifo), (fifo)->in+(off))] = \
311 (unsigned char)((val) >> (shift)) \
312 )
119 313
120 spin_unlock_irqrestore(fifo->lock, flags); 314 __KFIFO_PUT(fifo, 0, n, 0);
121 315
316 if (--recsize)
317 __KFIFO_PUT(fifo, 1, n, 8);
318#undef __KFIFO_PUT
319}
320
321/*
322 * __kfifo_in_... internal functions for put date into the fifo
323 * do not call it directly, use kfifo_in_rec() instead
324 */
325extern unsigned int __kfifo_in_n(struct kfifo *fifo,
326 const void *from, unsigned int n, unsigned int recsize);
327
328extern unsigned int __kfifo_in_generic(struct kfifo *fifo,
329 const void *from, unsigned int n, unsigned int recsize);
330
331static inline unsigned int __kfifo_in_rec(struct kfifo *fifo,
332 const void *from, unsigned int n, unsigned int recsize)
333{
334 unsigned int ret;
335
336 ret = __kfifo_in_n(fifo, from, n, recsize);
337
338 if (likely(ret == 0)) {
339 if (recsize)
340 __kfifo_poke_n(fifo, recsize, n);
341 __kfifo_add_in(fifo, n + recsize);
342 }
122 return ret; 343 return ret;
123} 344}
124 345
125/** 346/**
126 * __kfifo_len - returns the number of bytes available in the FIFO, no locking version 347 * kfifo_in_rec - puts some record data into the FIFO
127 * @fifo: the fifo to be used. 348 * @fifo: the fifo to be used.
349 * @from: the data to be added.
350 * @n: the length of the data to be added.
351 * @recsize: size of record field
352 *
353 * This function copies @n bytes from the @from into the FIFO and returns
354 * the number of bytes which cannot be copied.
355 * A returned value greater than the @n value means that the record doesn't
356 * fit into the buffer.
357 *
358 * Note that with only one concurrent reader and one concurrent
359 * writer, you don't need extra locking to use these functions.
128 */ 360 */
129static inline unsigned int __kfifo_len(struct kfifo *fifo) 361static inline __must_check unsigned int kfifo_in_rec(struct kfifo *fifo,
362 void *from, unsigned int n, unsigned int recsize)
130{ 363{
131 return fifo->in - fifo->out; 364 if (!__builtin_constant_p(recsize))
365 return __kfifo_in_generic(fifo, from, n, recsize);
366 return __kfifo_in_rec(fifo, from, n, recsize);
367}
368
369/*
370 * __kfifo_out_... internal functions for get date from the fifo
371 * do not call it directly, use kfifo_out_rec() instead
372 */
373extern unsigned int __kfifo_out_n(struct kfifo *fifo,
374 void *to, unsigned int reclen, unsigned int recsize);
375
376extern unsigned int __kfifo_out_generic(struct kfifo *fifo,
377 void *to, unsigned int n,
378 unsigned int recsize, unsigned int *total);
379
380static inline unsigned int __kfifo_out_rec(struct kfifo *fifo,
381 void *to, unsigned int n, unsigned int recsize,
382 unsigned int *total)
383{
384 unsigned int l;
385
386 if (!recsize) {
387 l = n;
388 if (total)
389 *total = l;
390 } else {
391 l = __kfifo_peek_n(fifo, recsize);
392 if (total)
393 *total = l;
394 if (n < l)
395 return l;
396 }
397
398 return __kfifo_out_n(fifo, to, l, recsize);
132} 399}
133 400
134/** 401/**
135 * kfifo_len - returns the number of bytes available in the FIFO 402 * kfifo_out_rec - gets some record data from the FIFO
136 * @fifo: the fifo to be used. 403 * @fifo: the fifo to be used.
404 * @to: where the data must be copied.
405 * @n: the size of the destination buffer.
406 * @recsize: size of record field
407 * @total: pointer where the total number of to copied bytes should stored
408 *
409 * This function copies at most @n bytes from the FIFO to @to and returns the
410 * number of bytes which cannot be copied.
411 * A returned value greater than the @n value means that the record doesn't
412 * fit into the @to buffer.
413 *
414 * Note that with only one concurrent reader and one concurrent
415 * writer, you don't need extra locking to use these functions.
137 */ 416 */
138static inline unsigned int kfifo_len(struct kfifo *fifo) 417static inline __must_check unsigned int kfifo_out_rec(struct kfifo *fifo,
418 void *to, unsigned int n, unsigned int recsize,
419 unsigned int *total)
420
139{ 421{
140 unsigned long flags; 422 if (!__builtin_constant_p(recsize))
141 unsigned int ret; 423 return __kfifo_out_generic(fifo, to, n, recsize, total);
424 return __kfifo_out_rec(fifo, to, n, recsize, total);
425}
426
427/*
428 * __kfifo_from_user_... internal functions for transfer from user space into
429 * the fifo. do not call it directly, use kfifo_from_user_rec() instead
430 */
431extern unsigned int __kfifo_from_user_n(struct kfifo *fifo,
432 const void __user *from, unsigned int n, unsigned int recsize);
142 433
143 spin_lock_irqsave(fifo->lock, flags); 434extern unsigned int __kfifo_from_user_generic(struct kfifo *fifo,
435 const void __user *from, unsigned int n, unsigned int recsize);
144 436
145 ret = __kfifo_len(fifo); 437static inline unsigned int __kfifo_from_user_rec(struct kfifo *fifo,
438 const void __user *from, unsigned int n, unsigned int recsize)
439{
440 unsigned int ret;
146 441
147 spin_unlock_irqrestore(fifo->lock, flags); 442 ret = __kfifo_from_user_n(fifo, from, n, recsize);
148 443
444 if (likely(ret == 0)) {
445 if (recsize)
446 __kfifo_poke_n(fifo, recsize, n);
447 __kfifo_add_in(fifo, n + recsize);
448 }
149 return ret; 449 return ret;
150} 450}
151 451
452/**
453 * kfifo_from_user_rec - puts some data from user space into the FIFO
454 * @fifo: the fifo to be used.
455 * @from: pointer to the data to be added.
456 * @n: the length of the data to be added.
457 * @recsize: size of record field
458 *
459 * This function copies @n bytes from the @from into the
460 * FIFO and returns the number of bytes which cannot be copied.
461 *
462 * If the returned value is equal or less the @n value, the copy_from_user()
463 * functions has failed. Otherwise the record doesn't fit into the buffer.
464 *
465 * Note that with only one concurrent reader and one concurrent
466 * writer, you don't need extra locking to use these functions.
467 */
468static inline __must_check unsigned int kfifo_from_user_rec(struct kfifo *fifo,
469 const void __user *from, unsigned int n, unsigned int recsize)
470{
471 if (!__builtin_constant_p(recsize))
472 return __kfifo_from_user_generic(fifo, from, n, recsize);
473 return __kfifo_from_user_rec(fifo, from, n, recsize);
474}
475
476/*
477 * __kfifo_to_user_... internal functions for transfer fifo data into user space
478 * do not call it directly, use kfifo_to_user_rec() instead
479 */
480extern unsigned int __kfifo_to_user_n(struct kfifo *fifo,
481 void __user *to, unsigned int n, unsigned int reclen,
482 unsigned int recsize);
483
484extern unsigned int __kfifo_to_user_generic(struct kfifo *fifo,
485 void __user *to, unsigned int n, unsigned int recsize,
486 unsigned int *total);
487
488static inline unsigned int __kfifo_to_user_rec(struct kfifo *fifo,
489 void __user *to, unsigned int n,
490 unsigned int recsize, unsigned int *total)
491{
492 unsigned int l;
493
494 if (!recsize) {
495 l = n;
496 if (total)
497 *total = l;
498 } else {
499 l = __kfifo_peek_n(fifo, recsize);
500 if (total)
501 *total = l;
502 if (n < l)
503 return l;
504 }
505
506 return __kfifo_to_user_n(fifo, to, n, l, recsize);
507}
508
509/**
510 * kfifo_to_user_rec - gets data from the FIFO and write it to user space
511 * @fifo: the fifo to be used.
512 * @to: where the data must be copied.
513 * @n: the size of the destination buffer.
514 * @recsize: size of record field
515 * @total: pointer where the total number of to copied bytes should stored
516 *
517 * This function copies at most @n bytes from the FIFO to the @to.
518 * In case of an error, the function returns the number of bytes which cannot
519 * be copied.
520 * If the returned value is equal or less the @n value, the copy_to_user()
521 * functions has failed. Otherwise the record doesn't fit into the @to buffer.
522 *
523 * Note that with only one concurrent reader and one concurrent
524 * writer, you don't need extra locking to use these functions.
525 */
526static inline __must_check unsigned int kfifo_to_user_rec(struct kfifo *fifo,
527 void __user *to, unsigned int n, unsigned int recsize,
528 unsigned int *total)
529{
530 if (!__builtin_constant_p(recsize))
531 return __kfifo_to_user_generic(fifo, to, n, recsize, total);
532 return __kfifo_to_user_rec(fifo, to, n, recsize, total);
533}
534
535/*
536 * __kfifo_peek_... internal functions for peek into the next fifo record
537 * do not call it directly, use kfifo_peek_rec() instead
538 */
539extern unsigned int __kfifo_peek_generic(struct kfifo *fifo,
540 unsigned int recsize);
541
542/**
543 * kfifo_peek_rec - gets the size of the next FIFO record data
544 * @fifo: the fifo to be used.
545 * @recsize: size of record field
546 *
547 * This function returns the size of the next FIFO record in number of bytes
548 */
549static inline __must_check unsigned int kfifo_peek_rec(struct kfifo *fifo,
550 unsigned int recsize)
551{
552 if (!__builtin_constant_p(recsize))
553 return __kfifo_peek_generic(fifo, recsize);
554 if (!recsize)
555 return kfifo_len(fifo);
556 return __kfifo_peek_n(fifo, recsize);
557}
558
559/*
560 * __kfifo_skip_... internal functions for skip the next fifo record
561 * do not call it directly, use kfifo_skip_rec() instead
562 */
563extern void __kfifo_skip_generic(struct kfifo *fifo, unsigned int recsize);
564
565static inline void __kfifo_skip_rec(struct kfifo *fifo,
566 unsigned int recsize)
567{
568 unsigned int l;
569
570 if (recsize) {
571 l = __kfifo_peek_n(fifo, recsize);
572
573 if (l + recsize <= kfifo_len(fifo)) {
574 __kfifo_add_out(fifo, l + recsize);
575 return;
576 }
577 }
578 kfifo_reset_out(fifo);
579}
580
581/**
582 * kfifo_skip_rec - skip the next fifo out record
583 * @fifo: the fifo to be used.
584 * @recsize: size of record field
585 *
586 * This function skips the next FIFO record
587 */
588static inline void kfifo_skip_rec(struct kfifo *fifo,
589 unsigned int recsize)
590{
591 if (!__builtin_constant_p(recsize))
592 __kfifo_skip_generic(fifo, recsize);
593 else
594 __kfifo_skip_rec(fifo, recsize);
595}
596
597/**
598 * kfifo_avail_rec - returns the number of bytes available in a record FIFO
599 * @fifo: the fifo to be used.
600 * @recsize: size of record field
601 */
602static inline __must_check unsigned int kfifo_avail_rec(struct kfifo *fifo,
603 unsigned int recsize)
604{
605 unsigned int l = kfifo_size(fifo) - kfifo_len(fifo);
606
607 return (l > recsize) ? l - recsize : 0;
608}
609
152#endif 610#endif
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 37fa19b34ef5..1adfe779eb99 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -50,6 +50,19 @@ struct memory_notify {
50 int status_change_nid; 50 int status_change_nid;
51}; 51};
52 52
53/*
54 * During pageblock isolation, count the number of pages within the
55 * range [start_pfn, start_pfn + nr_pages) which are owned by code
56 * in the notifier chain.
57 */
58#define MEM_ISOLATE_COUNT (1<<0)
59
60struct memory_isolate_notify {
61 unsigned long start_pfn; /* Start of range to check */
62 unsigned int nr_pages; /* # pages in range to check */
63 unsigned int pages_found; /* # pages owned found by callbacks */
64};
65
53struct notifier_block; 66struct notifier_block;
54struct mem_section; 67struct mem_section;
55 68
@@ -76,14 +89,28 @@ static inline int memory_notify(unsigned long val, void *v)
76{ 89{
77 return 0; 90 return 0;
78} 91}
92static inline int register_memory_isolate_notifier(struct notifier_block *nb)
93{
94 return 0;
95}
96static inline void unregister_memory_isolate_notifier(struct notifier_block *nb)
97{
98}
99static inline int memory_isolate_notify(unsigned long val, void *v)
100{
101 return 0;
102}
79#else 103#else
80extern int register_memory_notifier(struct notifier_block *nb); 104extern int register_memory_notifier(struct notifier_block *nb);
81extern void unregister_memory_notifier(struct notifier_block *nb); 105extern void unregister_memory_notifier(struct notifier_block *nb);
106extern int register_memory_isolate_notifier(struct notifier_block *nb);
107extern void unregister_memory_isolate_notifier(struct notifier_block *nb);
82extern int register_new_memory(int, struct mem_section *); 108extern int register_new_memory(int, struct mem_section *);
83extern int unregister_memory_section(struct mem_section *); 109extern int unregister_memory_section(struct mem_section *);
84extern int memory_dev_init(void); 110extern int memory_dev_init(void);
85extern int remove_memory_block(unsigned long, struct mem_section *, int); 111extern int remove_memory_block(unsigned long, struct mem_section *, int);
86extern int memory_notify(unsigned long val, void *v); 112extern int memory_notify(unsigned long val, void *v);
113extern int memory_isolate_notify(unsigned long val, void *v);
87extern struct memory_block *find_memory_block(struct mem_section *); 114extern struct memory_block *find_memory_block(struct mem_section *);
88#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT) 115#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
89enum mem_add_context { BOOT, HOTPLUG }; 116enum mem_add_context { BOOT, HOTPLUG };
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 849b4a61bd8f..2265f28eb47a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1037,6 +1037,9 @@ extern void add_active_range(unsigned int nid, unsigned long start_pfn,
1037extern void remove_active_range(unsigned int nid, unsigned long start_pfn, 1037extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
1038 unsigned long end_pfn); 1038 unsigned long end_pfn);
1039extern void remove_all_active_ranges(void); 1039extern void remove_all_active_ranges(void);
1040void sort_node_map(void);
1041unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
1042 unsigned long end_pfn);
1040extern unsigned long absent_pages_in_range(unsigned long start_pfn, 1043extern unsigned long absent_pages_in_range(unsigned long start_pfn,
1041 unsigned long end_pfn); 1044 unsigned long end_pfn);
1042extern void get_pfn_range_for_nid(unsigned int nid, 1045extern void get_pfn_range_for_nid(unsigned int nid,
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 028946750289..05b441d93642 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -72,8 +72,6 @@ extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
72 72
73extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry, 73extern struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
74 int (*open)(struct inode *, struct file *)); 74 int (*open)(struct inode *, struct file *));
75extern struct file *nameidata_to_filp(struct nameidata *nd, int flags);
76extern void release_open_intent(struct nameidata *);
77 75
78extern struct dentry *lookup_one_len(const char *, struct dentry *, int); 76extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
79 77
diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
deleted file mode 100644
index e3fb25606706..000000000000
--- a/include/linux/perf_counter.h
+++ /dev/null
@@ -1,444 +0,0 @@
1/*
2 * NOTE: this file will be removed in a future kernel release, it is
3 * provided as a courtesy copy of user-space code that relies on the
4 * old (pre-rename) symbols and constants.
5 *
6 * Performance events:
7 *
8 * Copyright (C) 2008-2009, Thomas Gleixner <tglx@linutronix.de>
9 * Copyright (C) 2008-2009, Red Hat, Inc., Ingo Molnar
10 * Copyright (C) 2008-2009, Red Hat, Inc., Peter Zijlstra
11 *
12 * Data type definitions, declarations, prototypes.
13 *
14 * Started by: Thomas Gleixner and Ingo Molnar
15 *
16 * For licencing details see kernel-base/COPYING
17 */
18#ifndef _LINUX_PERF_COUNTER_H
19#define _LINUX_PERF_COUNTER_H
20
21#include <linux/types.h>
22#include <linux/ioctl.h>
23#include <asm/byteorder.h>
24
25/*
26 * User-space ABI bits:
27 */
28
29/*
30 * attr.type
31 */
32enum perf_type_id {
33 PERF_TYPE_HARDWARE = 0,
34 PERF_TYPE_SOFTWARE = 1,
35 PERF_TYPE_TRACEPOINT = 2,
36 PERF_TYPE_HW_CACHE = 3,
37 PERF_TYPE_RAW = 4,
38
39 PERF_TYPE_MAX, /* non-ABI */
40};
41
42/*
43 * Generalized performance counter event types, used by the
44 * attr.event_id parameter of the sys_perf_counter_open()
45 * syscall:
46 */
47enum perf_hw_id {
48 /*
49 * Common hardware events, generalized by the kernel:
50 */
51 PERF_COUNT_HW_CPU_CYCLES = 0,
52 PERF_COUNT_HW_INSTRUCTIONS = 1,
53 PERF_COUNT_HW_CACHE_REFERENCES = 2,
54 PERF_COUNT_HW_CACHE_MISSES = 3,
55 PERF_COUNT_HW_BRANCH_INSTRUCTIONS = 4,
56 PERF_COUNT_HW_BRANCH_MISSES = 5,
57 PERF_COUNT_HW_BUS_CYCLES = 6,
58
59 PERF_COUNT_HW_MAX, /* non-ABI */
60};
61
62/*
63 * Generalized hardware cache counters:
64 *
65 * { L1-D, L1-I, LLC, ITLB, DTLB, BPU } x
66 * { read, write, prefetch } x
67 * { accesses, misses }
68 */
69enum perf_hw_cache_id {
70 PERF_COUNT_HW_CACHE_L1D = 0,
71 PERF_COUNT_HW_CACHE_L1I = 1,
72 PERF_COUNT_HW_CACHE_LL = 2,
73 PERF_COUNT_HW_CACHE_DTLB = 3,
74 PERF_COUNT_HW_CACHE_ITLB = 4,
75 PERF_COUNT_HW_CACHE_BPU = 5,
76
77 PERF_COUNT_HW_CACHE_MAX, /* non-ABI */
78};
79
80enum perf_hw_cache_op_id {
81 PERF_COUNT_HW_CACHE_OP_READ = 0,
82 PERF_COUNT_HW_CACHE_OP_WRITE = 1,
83 PERF_COUNT_HW_CACHE_OP_PREFETCH = 2,
84
85 PERF_COUNT_HW_CACHE_OP_MAX, /* non-ABI */
86};
87
88enum perf_hw_cache_op_result_id {
89 PERF_COUNT_HW_CACHE_RESULT_ACCESS = 0,
90 PERF_COUNT_HW_CACHE_RESULT_MISS = 1,
91
92 PERF_COUNT_HW_CACHE_RESULT_MAX, /* non-ABI */
93};
94
95/*
96 * Special "software" counters provided by the kernel, even if the hardware
97 * does not support performance counters. These counters measure various
98 * physical and sw events of the kernel (and allow the profiling of them as
99 * well):
100 */
101enum perf_sw_ids {
102 PERF_COUNT_SW_CPU_CLOCK = 0,
103 PERF_COUNT_SW_TASK_CLOCK = 1,
104 PERF_COUNT_SW_PAGE_FAULTS = 2,
105 PERF_COUNT_SW_CONTEXT_SWITCHES = 3,
106 PERF_COUNT_SW_CPU_MIGRATIONS = 4,
107 PERF_COUNT_SW_PAGE_FAULTS_MIN = 5,
108 PERF_COUNT_SW_PAGE_FAULTS_MAJ = 6,
109 PERF_COUNT_SW_ALIGNMENT_FAULTS = 7,
110 PERF_COUNT_SW_EMULATION_FAULTS = 8,
111
112 PERF_COUNT_SW_MAX, /* non-ABI */
113};
114
115/*
116 * Bits that can be set in attr.sample_type to request information
117 * in the overflow packets.
118 */
119enum perf_counter_sample_format {
120 PERF_SAMPLE_IP = 1U << 0,
121 PERF_SAMPLE_TID = 1U << 1,
122 PERF_SAMPLE_TIME = 1U << 2,
123 PERF_SAMPLE_ADDR = 1U << 3,
124 PERF_SAMPLE_READ = 1U << 4,
125 PERF_SAMPLE_CALLCHAIN = 1U << 5,
126 PERF_SAMPLE_ID = 1U << 6,
127 PERF_SAMPLE_CPU = 1U << 7,
128 PERF_SAMPLE_PERIOD = 1U << 8,
129 PERF_SAMPLE_STREAM_ID = 1U << 9,
130 PERF_SAMPLE_RAW = 1U << 10,
131
132 PERF_SAMPLE_MAX = 1U << 11, /* non-ABI */
133};
134
135/*
136 * The format of the data returned by read() on a perf counter fd,
137 * as specified by attr.read_format:
138 *
139 * struct read_format {
140 * { u64 value;
141 * { u64 time_enabled; } && PERF_FORMAT_ENABLED
142 * { u64 time_running; } && PERF_FORMAT_RUNNING
143 * { u64 id; } && PERF_FORMAT_ID
144 * } && !PERF_FORMAT_GROUP
145 *
146 * { u64 nr;
147 * { u64 time_enabled; } && PERF_FORMAT_ENABLED
148 * { u64 time_running; } && PERF_FORMAT_RUNNING
149 * { u64 value;
150 * { u64 id; } && PERF_FORMAT_ID
151 * } cntr[nr];
152 * } && PERF_FORMAT_GROUP
153 * };
154 */
155enum perf_counter_read_format {
156 PERF_FORMAT_TOTAL_TIME_ENABLED = 1U << 0,
157 PERF_FORMAT_TOTAL_TIME_RUNNING = 1U << 1,
158 PERF_FORMAT_ID = 1U << 2,
159 PERF_FORMAT_GROUP = 1U << 3,
160
161 PERF_FORMAT_MAX = 1U << 4, /* non-ABI */
162};
163
164#define PERF_ATTR_SIZE_VER0 64 /* sizeof first published struct */
165
166/*
167 * Hardware event to monitor via a performance monitoring counter:
168 */
169struct perf_counter_attr {
170
171 /*
172 * Major type: hardware/software/tracepoint/etc.
173 */
174 __u32 type;
175
176 /*
177 * Size of the attr structure, for fwd/bwd compat.
178 */
179 __u32 size;
180
181 /*
182 * Type specific configuration information.
183 */
184 __u64 config;
185
186 union {
187 __u64 sample_period;
188 __u64 sample_freq;
189 };
190
191 __u64 sample_type;
192 __u64 read_format;
193
194 __u64 disabled : 1, /* off by default */
195 inherit : 1, /* children inherit it */
196 pinned : 1, /* must always be on PMU */
197 exclusive : 1, /* only group on PMU */
198 exclude_user : 1, /* don't count user */
199 exclude_kernel : 1, /* ditto kernel */
200 exclude_hv : 1, /* ditto hypervisor */
201 exclude_idle : 1, /* don't count when idle */
202 mmap : 1, /* include mmap data */
203 comm : 1, /* include comm data */
204 freq : 1, /* use freq, not period */
205 inherit_stat : 1, /* per task counts */
206 enable_on_exec : 1, /* next exec enables */
207 task : 1, /* trace fork/exit */
208 watermark : 1, /* wakeup_watermark */
209
210 __reserved_1 : 49;
211
212 union {
213 __u32 wakeup_events; /* wakeup every n events */
214 __u32 wakeup_watermark; /* bytes before wakeup */
215 };
216 __u32 __reserved_2;
217
218 __u64 __reserved_3;
219};
220
221/*
222 * Ioctls that can be done on a perf counter fd:
223 */
224#define PERF_COUNTER_IOC_ENABLE _IO ('$', 0)
225#define PERF_COUNTER_IOC_DISABLE _IO ('$', 1)
226#define PERF_COUNTER_IOC_REFRESH _IO ('$', 2)
227#define PERF_COUNTER_IOC_RESET _IO ('$', 3)
228#define PERF_COUNTER_IOC_PERIOD _IOW('$', 4, u64)
229#define PERF_COUNTER_IOC_SET_OUTPUT _IO ('$', 5)
230#define PERF_COUNTER_IOC_SET_FILTER _IOW('$', 6, char *)
231
232enum perf_counter_ioc_flags {
233 PERF_IOC_FLAG_GROUP = 1U << 0,
234};
235
236/*
237 * Structure of the page that can be mapped via mmap
238 */
239struct perf_counter_mmap_page {
240 __u32 version; /* version number of this structure */
241 __u32 compat_version; /* lowest version this is compat with */
242
243 /*
244 * Bits needed to read the hw counters in user-space.
245 *
246 * u32 seq;
247 * s64 count;
248 *
249 * do {
250 * seq = pc->lock;
251 *
252 * barrier()
253 * if (pc->index) {
254 * count = pmc_read(pc->index - 1);
255 * count += pc->offset;
256 * } else
257 * goto regular_read;
258 *
259 * barrier();
260 * } while (pc->lock != seq);
261 *
262 * NOTE: for obvious reason this only works on self-monitoring
263 * processes.
264 */
265 __u32 lock; /* seqlock for synchronization */
266 __u32 index; /* hardware counter identifier */
267 __s64 offset; /* add to hardware counter value */
268 __u64 time_enabled; /* time counter active */
269 __u64 time_running; /* time counter on cpu */
270
271 /*
272 * Hole for extension of the self monitor capabilities
273 */
274
275 __u64 __reserved[123]; /* align to 1k */
276
277 /*
278 * Control data for the mmap() data buffer.
279 *
280 * User-space reading the @data_head value should issue an rmb(), on
281 * SMP capable platforms, after reading this value -- see
282 * perf_counter_wakeup().
283 *
284 * When the mapping is PROT_WRITE the @data_tail value should be
285 * written by userspace to reflect the last read data. In this case
286 * the kernel will not over-write unread data.
287 */
288 __u64 data_head; /* head in the data section */
289 __u64 data_tail; /* user-space written tail */
290};
291
292#define PERF_EVENT_MISC_CPUMODE_MASK (3 << 0)
293#define PERF_EVENT_MISC_CPUMODE_UNKNOWN (0 << 0)
294#define PERF_EVENT_MISC_KERNEL (1 << 0)
295#define PERF_EVENT_MISC_USER (2 << 0)
296#define PERF_EVENT_MISC_HYPERVISOR (3 << 0)
297
298struct perf_event_header {
299 __u32 type;
300 __u16 misc;
301 __u16 size;
302};
303
304enum perf_event_type {
305
306 /*
307 * The MMAP events record the PROT_EXEC mappings so that we can
308 * correlate userspace IPs to code. They have the following structure:
309 *
310 * struct {
311 * struct perf_event_header header;
312 *
313 * u32 pid, tid;
314 * u64 addr;
315 * u64 len;
316 * u64 pgoff;
317 * char filename[];
318 * };
319 */
320 PERF_EVENT_MMAP = 1,
321
322 /*
323 * struct {
324 * struct perf_event_header header;
325 * u64 id;
326 * u64 lost;
327 * };
328 */
329 PERF_EVENT_LOST = 2,
330
331 /*
332 * struct {
333 * struct perf_event_header header;
334 *
335 * u32 pid, tid;
336 * char comm[];
337 * };
338 */
339 PERF_EVENT_COMM = 3,
340
341 /*
342 * struct {
343 * struct perf_event_header header;
344 * u32 pid, ppid;
345 * u32 tid, ptid;
346 * u64 time;
347 * };
348 */
349 PERF_EVENT_EXIT = 4,
350
351 /*
352 * struct {
353 * struct perf_event_header header;
354 * u64 time;
355 * u64 id;
356 * u64 stream_id;
357 * };
358 */
359 PERF_EVENT_THROTTLE = 5,
360 PERF_EVENT_UNTHROTTLE = 6,
361
362 /*
363 * struct {
364 * struct perf_event_header header;
365 * u32 pid, ppid;
366 * u32 tid, ptid;
367 * u64 time;
368 * };
369 */
370 PERF_EVENT_FORK = 7,
371
372 /*
373 * struct {
374 * struct perf_event_header header;
375 * u32 pid, tid;
376 *
377 * struct read_format values;
378 * };
379 */
380 PERF_EVENT_READ = 8,
381
382 /*
383 * struct {
384 * struct perf_event_header header;
385 *
386 * { u64 ip; } && PERF_SAMPLE_IP
387 * { u32 pid, tid; } && PERF_SAMPLE_TID
388 * { u64 time; } && PERF_SAMPLE_TIME
389 * { u64 addr; } && PERF_SAMPLE_ADDR
390 * { u64 id; } && PERF_SAMPLE_ID
391 * { u64 stream_id;} && PERF_SAMPLE_STREAM_ID
392 * { u32 cpu, res; } && PERF_SAMPLE_CPU
393 * { u64 period; } && PERF_SAMPLE_PERIOD
394 *
395 * { struct read_format values; } && PERF_SAMPLE_READ
396 *
397 * { u64 nr,
398 * u64 ips[nr]; } && PERF_SAMPLE_CALLCHAIN
399 *
400 * #
401 * # The RAW record below is opaque data wrt the ABI
402 * #
403 * # That is, the ABI doesn't make any promises wrt to
404 * # the stability of its content, it may vary depending
405 * # on event, hardware, kernel version and phase of
406 * # the moon.
407 * #
408 * # In other words, PERF_SAMPLE_RAW contents are not an ABI.
409 * #
410 *
411 * { u32 size;
412 * char data[size];}&& PERF_SAMPLE_RAW
413 * };
414 */
415 PERF_EVENT_SAMPLE = 9,
416
417 PERF_EVENT_MAX, /* non-ABI */
418};
419
420enum perf_callchain_context {
421 PERF_CONTEXT_HV = (__u64)-32,
422 PERF_CONTEXT_KERNEL = (__u64)-128,
423 PERF_CONTEXT_USER = (__u64)-512,
424
425 PERF_CONTEXT_GUEST = (__u64)-2048,
426 PERF_CONTEXT_GUEST_KERNEL = (__u64)-2176,
427 PERF_CONTEXT_GUEST_USER = (__u64)-2560,
428
429 PERF_CONTEXT_MAX = (__u64)-4095,
430};
431
432#define PERF_FLAG_FD_NO_GROUP (1U << 0)
433#define PERF_FLAG_FD_OUTPUT (1U << 1)
434
435/*
436 * In case some app still references the old symbols:
437 */
438
439#define __NR_perf_counter_open __NR_perf_event_open
440
441#define PR_TASK_PERF_COUNTERS_DISABLE PR_TASK_PERF_EVENTS_DISABLE
442#define PR_TASK_PERF_COUNTERS_ENABLE PR_TASK_PERF_EVENTS_ENABLE
443
444#endif /* _LINUX_PERF_COUNTER_H */
diff --git a/include/linux/quota.h b/include/linux/quota.h
index e70e62194243..a6861f117480 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -315,8 +315,9 @@ struct dquot_operations {
315 int (*claim_space) (struct inode *, qsize_t); 315 int (*claim_space) (struct inode *, qsize_t);
316 /* release rsved quota for delayed alloc */ 316 /* release rsved quota for delayed alloc */
317 void (*release_rsv) (struct inode *, qsize_t); 317 void (*release_rsv) (struct inode *, qsize_t);
318 /* get reserved quota for delayed alloc */ 318 /* get reserved quota for delayed alloc, value returned is managed by
319 qsize_t (*get_reserved_space) (struct inode *); 319 * quota code only */
320 qsize_t *(*get_reserved_space) (struct inode *);
320}; 321};
321 322
322/* Operations handling requests from userspace */ 323/* Operations handling requests from userspace */
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index c4ba9a78721e..96cc307ed9f4 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -101,4 +101,9 @@ static inline void exit_rcu(void)
101{ 101{
102} 102}
103 103
104static inline int rcu_preempt_depth(void)
105{
106 return 0;
107}
108
104#endif /* __LINUX_RCUTINY_H */ 109#endif /* __LINUX_RCUTINY_H */
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index c93eee5911b0..8044b1b94333 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -45,6 +45,12 @@ extern void __rcu_read_unlock(void);
45extern void synchronize_rcu(void); 45extern void synchronize_rcu(void);
46extern void exit_rcu(void); 46extern void exit_rcu(void);
47 47
48/*
49 * Defined as macro as it is a very low level header
50 * included from areas that don't even know about current
51 */
52#define rcu_preempt_depth() (current->rcu_read_lock_nesting)
53
48#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */ 54#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
49 55
50static inline void __rcu_read_lock(void) 56static inline void __rcu_read_lock(void)
@@ -63,6 +69,11 @@ static inline void exit_rcu(void)
63{ 69{
64} 70}
65 71
72static inline int rcu_preempt_depth(void)
73{
74 return 0;
75}
76
66#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */ 77#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */
67 78
68static inline void __rcu_read_lock_bh(void) 79static inline void __rcu_read_lock_bh(void)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e89857812be6..f2f842db03ce 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -192,6 +192,12 @@ print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
192#define TASK_DEAD 64 192#define TASK_DEAD 64
193#define TASK_WAKEKILL 128 193#define TASK_WAKEKILL 128
194#define TASK_WAKING 256 194#define TASK_WAKING 256
195#define TASK_STATE_MAX 512
196
197#define TASK_STATE_TO_CHAR_STR "RSDTtZXxKW"
198
199extern char ___assert_task_state[1 - 2*!!(
200 sizeof(TASK_STATE_TO_CHAR_STR)-1 != ilog2(TASK_STATE_MAX)+1)];
195 201
196/* Convenience macros for the sake of set_task_state */ 202/* Convenience macros for the sake of set_task_state */
197#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE) 203#define TASK_KILLABLE (TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
@@ -1091,7 +1097,8 @@ struct sched_class {
1091 enum cpu_idle_type idle); 1097 enum cpu_idle_type idle);
1092 void (*pre_schedule) (struct rq *this_rq, struct task_struct *task); 1098 void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
1093 void (*post_schedule) (struct rq *this_rq); 1099 void (*post_schedule) (struct rq *this_rq);
1094 void (*task_wake_up) (struct rq *this_rq, struct task_struct *task); 1100 void (*task_waking) (struct rq *this_rq, struct task_struct *task);
1101 void (*task_woken) (struct rq *this_rq, struct task_struct *task);
1095 1102
1096 void (*set_cpus_allowed)(struct task_struct *p, 1103 void (*set_cpus_allowed)(struct task_struct *p,
1097 const struct cpumask *newmask); 1104 const struct cpumask *newmask);
@@ -1115,7 +1122,7 @@ struct sched_class {
1115 struct task_struct *task); 1122 struct task_struct *task);
1116 1123
1117#ifdef CONFIG_FAIR_GROUP_SCHED 1124#ifdef CONFIG_FAIR_GROUP_SCHED
1118 void (*moved_group) (struct task_struct *p); 1125 void (*moved_group) (struct task_struct *p, int on_rq);
1119#endif 1126#endif
1120}; 1127};
1121 1128
@@ -2594,8 +2601,6 @@ static inline void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
2594} 2601}
2595#endif /* CONFIG_MM_OWNER */ 2602#endif /* CONFIG_MM_OWNER */
2596 2603
2597#define TASK_STATE_TO_CHAR_STR "RSDTtZX"
2598
2599#endif /* __KERNEL__ */ 2604#endif /* __KERNEL__ */
2600 2605
2601#endif 2606#endif
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 9d68fed50f11..cfa83083a2d4 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -99,8 +99,9 @@ int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
99void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr); 99void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
100 100
101int __must_check sysfs_create_bin_file(struct kobject *kobj, 101int __must_check sysfs_create_bin_file(struct kobject *kobj,
102 struct bin_attribute *attr); 102 const struct bin_attribute *attr);
103void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); 103void sysfs_remove_bin_file(struct kobject *kobj,
104 const struct bin_attribute *attr);
104 105
105int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target, 106int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
106 const char *name); 107 const char *name);
@@ -175,13 +176,13 @@ static inline void sysfs_remove_file(struct kobject *kobj,
175} 176}
176 177
177static inline int sysfs_create_bin_file(struct kobject *kobj, 178static inline int sysfs_create_bin_file(struct kobject *kobj,
178 struct bin_attribute *attr) 179 const struct bin_attribute *attr)
179{ 180{
180 return 0; 181 return 0;
181} 182}
182 183
183static inline void sysfs_remove_bin_file(struct kobject *kobj, 184static inline void sysfs_remove_bin_file(struct kobject *kobj,
184 struct bin_attribute *attr) 185 const struct bin_attribute *attr)
185{ 186{
186} 187}
187 188
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index acf6e457c04b..1819396ed501 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -16,6 +16,7 @@
16#include <linux/kref.h> 16#include <linux/kref.h>
17#include <linux/mutex.h> 17#include <linux/mutex.h>
18#include <linux/sysrq.h> 18#include <linux/sysrq.h>
19#include <linux/kfifo.h>
19 20
20#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */ 21#define SERIAL_TTY_MAJOR 188 /* Nice legal number now */
21#define SERIAL_TTY_MINORS 254 /* loads of devices :) */ 22#define SERIAL_TTY_MINORS 254 /* loads of devices :) */
@@ -94,7 +95,7 @@ struct usb_serial_port {
94 unsigned char *bulk_out_buffer; 95 unsigned char *bulk_out_buffer;
95 int bulk_out_size; 96 int bulk_out_size;
96 struct urb *write_urb; 97 struct urb *write_urb;
97 struct kfifo *write_fifo; 98 struct kfifo write_fifo;
98 int write_urb_busy; 99 int write_urb_busy;
99 __u8 bulk_out_endpointAddress; 100 __u8 bulk_out_endpointAddress;
100 101
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index 7394e3bc8f4b..ff92b46f5153 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -28,6 +28,7 @@
28#include <linux/mutex.h> 28#include <linux/mutex.h>
29#include <linux/timer.h> 29#include <linux/timer.h>
30#include <linux/workqueue.h> 30#include <linux/workqueue.h>
31#include <linux/kfifo.h>
31#include <scsi/iscsi_proto.h> 32#include <scsi/iscsi_proto.h>
32#include <scsi/iscsi_if.h> 33#include <scsi/iscsi_if.h>
33#include <scsi/scsi_transport_iscsi.h> 34#include <scsi/scsi_transport_iscsi.h>
@@ -231,7 +232,7 @@ struct iscsi_conn {
231}; 232};
232 233
233struct iscsi_pool { 234struct iscsi_pool {
234 struct kfifo *queue; /* FIFO Queue */ 235 struct kfifo queue; /* FIFO Queue */
235 void **pool; /* Pool of elements */ 236 void **pool; /* Pool of elements */
236 int max; /* Max number of elements */ 237 int max; /* Max number of elements */
237}; 238};
diff --git a/include/scsi/libiscsi_tcp.h b/include/scsi/libiscsi_tcp.h
index 9e3182e659db..741ae7ed4394 100644
--- a/include/scsi/libiscsi_tcp.h
+++ b/include/scsi/libiscsi_tcp.h
@@ -80,7 +80,7 @@ struct iscsi_tcp_task {
80 int data_offset; 80 int data_offset;
81 struct iscsi_r2t_info *r2t; /* in progress solict R2T */ 81 struct iscsi_r2t_info *r2t; /* in progress solict R2T */
82 struct iscsi_pool r2tpool; 82 struct iscsi_pool r2tpool;
83 struct kfifo *r2tqueue; 83 struct kfifo r2tqueue;
84 void *dd_data; 84 void *dd_data;
85}; 85};
86 86
diff --git a/include/scsi/libsrp.h b/include/scsi/libsrp.h
index ba615e4c1d7c..07e3adde21d9 100644
--- a/include/scsi/libsrp.h
+++ b/include/scsi/libsrp.h
@@ -21,7 +21,7 @@ struct srp_buf {
21struct srp_queue { 21struct srp_queue {
22 void *pool; 22 void *pool;
23 void *items; 23 void *items;
24 struct kfifo *queue; 24 struct kfifo queue;
25 spinlock_t lock; 25 spinlock_t lock;
26}; 26};
27 27
generated by cgit v1.2.2 (git 2.25.0) at 2025-02-20 19:57:08 -0500