vcs.maemo.org Git - kernel-bfs/blob - kernel-bfs-2.6.28/debian/patches/nokia-20103103+0m5.diff

   1 --- kernel-power-2.6.28.orig/arch/arm/include/asm/cacheflush.h
   2 +++ kernel-power-2.6.28/arch/arm/include/asm/cacheflush.h
   3 @@ -138,16 +138,16 @@
   4   *     Please note that the implementation of these, and the required
   5   *     effects are cache-type (VIVT/VIPT/PIPT) specific.
   6   *
   7 - *     flush_cache_kern_all()
   8 + *     flush_kern_all()
   9   *
  10   *             Unconditionally clean and invalidate the entire cache.
  11   *
  12 - *     flush_cache_user_mm(mm)
  13 + *     flush_user_all()
  14   *
  15   *             Clean and invalidate all user space cache entries
  16   *             before a change of page tables.
  17   *
  18 - *     flush_cache_user_range(start, end, flags)
  19 + *     flush_user_range(start, end, flags)
  20   *
  21   *             Clean and invalidate a range of cache entries in the
  22   *             specified address space before a change of page tables.
  23 @@ -163,6 +163,20 @@
  24   *             - start  - virtual start address
  25   *             - end    - virtual end address
  26   *
  27 + *     coherent_user_range(start, end)
  28 + *
  29 + *             Ensure coherency between the Icache and the Dcache in the
  30 + *             region described by start, end.  If you have non-snooping
  31 + *             Harvard caches, you need to implement this function.
  32 + *             - start  - virtual start address
  33 + *             - end    - virtual end address
  34 + *
  35 + *     flush_kern_dcache_area(kaddr, size)
  36 + *
  37 + *             Ensure that the data held in page is written back.
  38 + *             - kaddr  - page address
  39 + *             - size   - region size
  40 + *
  41   *     DMA Cache Coherency
  42   *     ===================
  43   *
  44 @@ -375,7 +389,7 @@
  45   * Harvard caches are synchronised for the user space address range.
  46   * This is used for the ARM private sys_cacheflush system call.
  47   */
  48 -#define flush_cache_user_range(vma,start,end) \
  49 +#define flush_cache_user_range(start,end) \
  50         __cpuc_coherent_user_range((start) & PAGE_MASK, PAGE_ALIGN(end))
  51
  52  /*
  53 --- kernel-power-2.6.28.orig/arch/arm/kernel/traps.c
  54 +++ kernel-power-2.6.28/arch/arm/kernel/traps.c
  55 @@ -418,7 +418,9 @@
  56                 if (end > vma->vm_end)
  57                         end = vma->vm_end;
  58
  59 -               flush_cache_user_range(vma, start, end);
  60 +               up_read(&mm->mmap_sem);
  61 +               flush_cache_user_range(start, end);
  62 +               return;
  63         }
  64         up_read(&mm->mmap_sem);
  65  }
  66 --- kernel-power-2.6.28.orig/arch/arm/mach-omap2/smartreflex.c
  67 +++ kernel-power-2.6.28/arch/arm/mach-omap2/smartreflex.c
  68 @@ -890,7 +890,7 @@
  69                 return SR_FAIL;
  70         }
  71
  72 -       if (sr->is_autocomp_active) {
  73 +       if (sr->is_autocomp_active && !sr->is_sr_reset) {
  74                 WARN(1, "SR: Must not transmit VCBYPASS command while SR is "
  75                      "active");
  76                 return SR_FAIL;
  77 --- kernel-power-2.6.28.orig/arch/arm/mm/fault.c
  78 +++ kernel-power-2.6.28/arch/arm/mm/fault.c
  79 @@ -387,6 +387,9 @@
  80         if (addr < TASK_SIZE)
  81                 return do_page_fault(addr, fsr, regs);
  82
  83 +       if (user_mode(regs))
  84 +               goto bad_area;
  85 +
  86         index = pgd_index(addr);
  87
  88         /*
  89 @@ -449,7 +452,12 @@
  90         { do_bad,               SIGILL,  BUS_ADRALN,    "alignment exception"              },
  91         { do_bad,               SIGKILL, 0,             "terminal exception"               },
  92         { do_bad,               SIGILL,  BUS_ADRALN,    "alignment exception"              },
  93 +/* Do we need runtime check ? */
  94 +#if __LINUX_ARM_ARCH__ < 6
  95         { do_bad,               SIGBUS,  0,             "external abort on linefetch"      },
  96 +#else
  97 +       { do_translation_fault, SIGSEGV, SEGV_MAPERR,   "I-cache maintenance fault"        },
  98 +#endif
  99         { do_translation_fault, SIGSEGV, SEGV_MAPERR,   "section translation fault"        },
 100         { do_bad,               SIGBUS,  0,             "external abort on linefetch"      },
 101         { do_page_fault,        SIGSEGV, SEGV_MAPERR,   "page translation fault"           },
 102 --- kernel-power-2.6.28.orig/arch/arm/mm/mmu.c
 103 +++ kernel-power-2.6.28/arch/arm/mm/mmu.c
 104 @@ -953,4 +953,6 @@
 105                 pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
 106                 flush_pmd_entry(pmd);
 107         }
 108 +
 109 +       local_flush_tlb_all();
 110  }
 111 --- kernel-power-2.6.28.orig/arch/arm/mm/proc-v6.S
 112 +++ kernel-power-2.6.28/arch/arm/mm/proc-v6.S
 113 @@ -56,8 +56,6 @@
 114   *     to what would be the reset vector.
 115   *
 116   *     - loc   - location to jump to for soft reset
 117 - *
 118 - *     It is assumed that:
 119   */
 120         .align  5
 121  ENTRY(cpu_v6_reset)
 122 --- kernel-power-2.6.28.orig/arch/arm/mm/proc-v7.S
 123 +++ kernel-power-2.6.28/arch/arm/mm/proc-v7.S
 124 @@ -28,7 +28,14 @@
 125  ENDPROC(cpu_v7_proc_init)
 126
 127  ENTRY(cpu_v7_proc_fin)
 128 -       mov     pc, lr
 129 +       stmfd   sp!, {lr}
 130 +       cpsid   if                              @ disable interrupts
 131 +       bl      v7_flush_kern_cache_all
 132 +       mrc     p15, 0, r0, c1, c0, 0           @ ctrl register
 133 +       bic     r0, r0, #0x1000                 @ ...i............
 134 +       bic     r0, r0, #0x0006                 @ .............ca.
 135 +       mcr     p15, 0, r0, c1, c0, 0           @ disable caches
 136 +       ldmfd   sp!, {pc}
 137  ENDPROC(cpu_v7_proc_fin)
 138
 139  /*
 140 @@ -39,8 +46,6 @@
 141   *     to what would be the reset vector.
 142   *
 143   *     - loc   - location to jump to for soft reset
 144 - *
 145 - *     It is assumed that:
 146   */
 147         .align  5
 148  ENTRY(cpu_v7_reset)
 149 --- kernel-power-2.6.28.orig/block/cfq-iosched.c
 150 +++ kernel-power-2.6.28/block/cfq-iosched.c
 151 @@ -84,6 +84,11 @@
 152          */
 153         struct cfq_rb_root service_tree;
 154         unsigned int busy_queues;
 155 +       /*
 156 +        * Used to track any pending rt requests so we can pre-empt current
 157 +        * non-RT cfqq in service when this value is non-zero.
 158 +        */
 159 +       unsigned int busy_rt_queues;
 160
 161         int rq_in_driver;
 162         int sync_flight;
 163 @@ -155,6 +160,7 @@
 164
 165         unsigned long slice_end;
 166         long slice_resid;
 167 +       unsigned int slice_dispatch;
 168
 169         /* pending metadata requests */
 170         int meta_pending;
 171 @@ -171,13 +177,12 @@
 172  enum cfqq_state_flags {
 173         CFQ_CFQQ_FLAG_on_rr = 0,        /* on round-robin busy list */
 174         CFQ_CFQQ_FLAG_wait_request,     /* waiting for a request */
 175 +       CFQ_CFQQ_FLAG_must_dispatch,    /* must be allowed a dispatch */
 176         CFQ_CFQQ_FLAG_must_alloc,       /* must be allowed rq alloc */
 177         CFQ_CFQQ_FLAG_must_alloc_slice, /* per-slice must_alloc flag */
 178 -       CFQ_CFQQ_FLAG_must_dispatch,    /* must dispatch, even if expired */
 179         CFQ_CFQQ_FLAG_fifo_expire,      /* FIFO checked in this slice */
 180         CFQ_CFQQ_FLAG_idle_window,      /* slice idling enabled */
 181         CFQ_CFQQ_FLAG_prio_changed,     /* task priority has changed */
 182 -       CFQ_CFQQ_FLAG_queue_new,        /* queue never been serviced */
 183         CFQ_CFQQ_FLAG_slice_new,        /* no requests dispatched in slice */
 184         CFQ_CFQQ_FLAG_sync,             /* synchronous queue */
 185  };
 186 @@ -198,13 +203,12 @@
 187
 188  CFQ_CFQQ_FNS(on_rr);
 189  CFQ_CFQQ_FNS(wait_request);
 190 +CFQ_CFQQ_FNS(must_dispatch);
 191  CFQ_CFQQ_FNS(must_alloc);
 192  CFQ_CFQQ_FNS(must_alloc_slice);
 193 -CFQ_CFQQ_FNS(must_dispatch);
 194  CFQ_CFQQ_FNS(fifo_expire);
 195  CFQ_CFQQ_FNS(idle_window);
 196  CFQ_CFQQ_FNS(prio_changed);
 197 -CFQ_CFQQ_FNS(queue_new);
 198  CFQ_CFQQ_FNS(slice_new);
 199  CFQ_CFQQ_FNS(sync);
 200  #undef CFQ_CFQQ_FNS
 201 @@ -562,6 +566,8 @@
 202         BUG_ON(cfq_cfqq_on_rr(cfqq));
 203         cfq_mark_cfqq_on_rr(cfqq);
 204         cfqd->busy_queues++;
 205 +       if (cfq_class_rt(cfqq))
 206 +               cfqd->busy_rt_queues++;
 207
 208         cfq_resort_rr_list(cfqd, cfqq);
 209  }
 210 @@ -581,6 +587,8 @@
 211
 212         BUG_ON(!cfqd->busy_queues);
 213         cfqd->busy_queues--;
 214 +       if (cfq_class_rt(cfqq))
 215 +               cfqd->busy_rt_queues--;
 216  }
 217
 218  /*
 219 @@ -765,10 +773,15 @@
 220         if (cfqq) {
 221                 cfq_log_cfqq(cfqd, cfqq, "set_active");
 222                 cfqq->slice_end = 0;
 223 +               cfqq->slice_dispatch = 0;
 224 +
 225 +               cfq_clear_cfqq_wait_request(cfqq);
 226 +               cfq_clear_cfqq_must_dispatch(cfqq);
 227                 cfq_clear_cfqq_must_alloc_slice(cfqq);
 228                 cfq_clear_cfqq_fifo_expire(cfqq);
 229                 cfq_mark_cfqq_slice_new(cfqq);
 230 -               cfq_clear_cfqq_queue_new(cfqq);
 231 +
 232 +               del_timer(&cfqd->idle_slice_timer);
 233         }
 234
 235         cfqd->active_queue = cfqq;
 236 @@ -786,7 +799,6 @@
 237         if (cfq_cfqq_wait_request(cfqq))
 238                 del_timer(&cfqd->idle_slice_timer);
 239
 240 -       cfq_clear_cfqq_must_dispatch(cfqq);
 241         cfq_clear_cfqq_wait_request(cfqq);
 242
 243         /*
 244 @@ -915,7 +927,6 @@
 245             (sample_valid(cic->ttime_samples) && cic->ttime_mean > 2))
 246                 return;
 247
 248 -       cfq_mark_cfqq_must_dispatch(cfqq);
 249         cfq_mark_cfqq_wait_request(cfqq);
 250
 251         /*
 252 @@ -1001,10 +1012,24 @@
 253         /*
 254          * The active queue has run out of time, expire it and select new.
 255          */
 256 -       if (cfq_slice_used(cfqq))
 257 +       if (cfq_slice_used(cfqq) && !cfq_cfqq_must_dispatch(cfqq))
 258                 goto expire;
 259
 260         /*
 261 +        * If we have a RT cfqq waiting, then we pre-empt the current non-rt
 262 +        * cfqq.
 263 +        */
 264 +       if (!cfq_class_rt(cfqq) && cfqd->busy_rt_queues) {
 265 +               /*
 266 +                * We simulate this as cfqq timed out so that it gets to bank
 267 +                * the remaining of its time slice.
 268 +                */
 269 +               cfq_log_cfqq(cfqd, cfqq, "preempt");
 270 +               cfq_slice_expired(cfqd, 1);
 271 +               goto new_queue;
 272 +       }
 273 +
 274 +       /*
 275          * The active queue has requests and isn't expired, allow it to
 276          * dispatch.
 277          */
 278 @@ -1030,59 +1055,6 @@
 279         return cfqq;
 280  }
 281
 282 -/*
 283 - * Dispatch some requests from cfqq, moving them to the request queue
 284 - * dispatch list.
 285 - */
 286 -static int
 287 -__cfq_dispatch_requests(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 288 -                       int max_dispatch)
 289 -{
 290 -       int dispatched = 0;
 291 -
 292 -       BUG_ON(RB_EMPTY_ROOT(&cfqq->sort_list));
 293 -
 294 -       do {
 295 -               struct request *rq;
 296 -
 297 -               /*
 298 -                * follow expired path, else get first next available
 299 -                */
 300 -               rq = cfq_check_fifo(cfqq);
 301 -               if (rq == NULL)
 302 -                       rq = cfqq->next_rq;
 303 -
 304 -               /*
 305 -                * finally, insert request into driver dispatch list
 306 -                */
 307 -               cfq_dispatch_insert(cfqd->queue, rq);
 308 -
 309 -               dispatched++;
 310 -
 311 -               if (!cfqd->active_cic) {
 312 -                       atomic_inc(&RQ_CIC(rq)->ioc->refcount);
 313 -                       cfqd->active_cic = RQ_CIC(rq);
 314 -               }
 315 -
 316 -               if (RB_EMPTY_ROOT(&cfqq->sort_list))
 317 -                       break;
 318 -
 319 -       } while (dispatched < max_dispatch);
 320 -
 321 -       /*
 322 -        * expire an async queue immediately if it has used up its slice. idle
 323 -        * queue always expire after 1 dispatch round.
 324 -        */
 325 -       if (cfqd->busy_queues > 1 && ((!cfq_cfqq_sync(cfqq) &&
 326 -           dispatched >= cfq_prio_to_maxrq(cfqd, cfqq)) ||
 327 -           cfq_class_idle(cfqq))) {
 328 -               cfqq->slice_end = jiffies + 1;
 329 -               cfq_slice_expired(cfqd, 0);
 330 -       }
 331 -
 332 -       return dispatched;
 333 -}
 334 -
 335  static int __cfq_forced_dispatch_cfqq(struct cfq_queue *cfqq)
 336  {
 337         int dispatched = 0;
 338 @@ -1116,11 +1088,45 @@
 339         return dispatched;
 340  }
 341
 342 +/*
 343 + * Dispatch a request from cfqq, moving them to the request queue
 344 + * dispatch list.
 345 + */
 346 +static void cfq_dispatch_request(struct cfq_data *cfqd, struct cfq_queue *cfqq)
 347 +{
 348 +       struct request *rq;
 349 +
 350 +       BUG_ON(RB_EMPTY_ROOT(&cfqq->sort_list));
 351 +
 352 +       /*
 353 +        * follow expired path, else get first next available
 354 +        */
 355 +       rq = cfq_check_fifo(cfqq);
 356 +       if (!rq)
 357 +               rq = cfqq->next_rq;
 358 +
 359 +       /*
 360 +        * insert request into driver dispatch list
 361 +        */
 362 +       cfq_dispatch_insert(cfqd->queue, rq);
 363 +
 364 +       if (!cfqd->active_cic) {
 365 +               struct cfq_io_context *cic = RQ_CIC(rq);
 366 +
 367 +               atomic_inc(&cic->ioc->refcount);
 368 +               cfqd->active_cic = cic;
 369 +       }
 370 +}
 371 +
 372 +/*
 373 + * Find the cfqq that we need to service and move a request from that to the
 374 + * dispatch list
 375 + */
 376  static int cfq_dispatch_requests(struct request_queue *q, int force)
 377  {
 378         struct cfq_data *cfqd = q->elevator->elevator_data;
 379         struct cfq_queue *cfqq;
 380 -       int dispatched;
 381 +       unsigned int max_dispatch;
 382
 383         if (!cfqd->busy_queues)
 384                 return 0;
 385 @@ -1128,33 +1134,63 @@
 386         if (unlikely(force))
 387                 return cfq_forced_dispatch(cfqd);
 388
 389 -       dispatched = 0;
 390 -       while ((cfqq = cfq_select_queue(cfqd)) != NULL) {
 391 -               int max_dispatch;
 392 +       cfqq = cfq_select_queue(cfqd);
 393 +       if (!cfqq)
 394 +               return 0;
 395 +
 396 +       /*
 397 +        * If this is an async queue and we have sync IO in flight, let it wait
 398 +        */
 399 +       if (cfqd->sync_flight && !cfq_cfqq_sync(cfqq))
 400 +               return 0;
 401 +
 402 +       max_dispatch = cfqd->cfq_quantum;
 403 +       if (cfq_class_idle(cfqq))
 404 +               max_dispatch = 1;
 405
 406 -               max_dispatch = cfqd->cfq_quantum;
 407 +       /*
 408 +        * Does this cfqq already have too much IO in flight?
 409 +        */
 410 +       if (cfqq->dispatched >= max_dispatch) {
 411 +               /*
 412 +                * idle queue must always only have a single IO in flight
 413 +                */
 414                 if (cfq_class_idle(cfqq))
 415 -                       max_dispatch = 1;
 416 +                       return 0;
 417
 418 -               if (cfqq->dispatched >= max_dispatch) {
 419 -                       if (cfqd->busy_queues > 1)
 420 -                               break;
 421 -                       if (cfqq->dispatched >= 4 * max_dispatch)
 422 -                               break;
 423 -               }
 424 +               /*
 425 +                * We have other queues, don't allow more IO from this one
 426 +                */
 427 +               if (cfqd->busy_queues > 1)
 428 +                       return 0;
 429
 430 -               if (cfqd->sync_flight && !cfq_cfqq_sync(cfqq))
 431 -                       break;
 432 +               /*
 433 +                * we are the only queue, allow up to 4 times of 'quantum'
 434 +                */
 435 +               if (cfqq->dispatched >= 4 * max_dispatch)
 436 +                       return 0;
 437 +       }
 438
 439 -               cfq_clear_cfqq_must_dispatch(cfqq);
 440 -               cfq_clear_cfqq_wait_request(cfqq);
 441 -               del_timer(&cfqd->idle_slice_timer);
 442 +       /*
 443 +        * Dispatch a request from this cfqq
 444 +        */
 445 +       cfq_dispatch_request(cfqd, cfqq);
 446 +       cfqq->slice_dispatch++;
 447 +       cfq_clear_cfqq_must_dispatch(cfqq);
 448
 449 -               dispatched += __cfq_dispatch_requests(cfqd, cfqq, max_dispatch);
 450 +       /*
 451 +        * expire an async queue immediately if it has used up its slice. idle
 452 +        * queue always expire after 1 dispatch round.
 453 +        */
 454 +       if (cfqd->busy_queues > 1 && ((!cfq_cfqq_sync(cfqq) &&
 455 +           cfqq->slice_dispatch >= cfq_prio_to_maxrq(cfqd, cfqq)) ||
 456 +           cfq_class_idle(cfqq))) {
 457 +               cfqq->slice_end = jiffies + 1;
 458 +               cfq_slice_expired(cfqd, 0);
 459         }
 460
 461 -       cfq_log(cfqd, "dispatched=%d", dispatched);
 462 -       return dispatched;
 463 +       cfq_log(cfqd, "dispatched a request");
 464 +       return 1;
 465  }
 466
 467  /*
 468 @@ -1318,7 +1354,15 @@
 469                 unsigned long flags;
 470
 471                 spin_lock_irqsave(q->queue_lock, flags);
 472 -               __cfq_exit_single_io_context(cfqd, cic);
 473 +
 474 +               /*
 475 +                * Ensure we get a fresh copy of the ->key to prevent
 476 +                * race between exiting task and queue
 477 +                */
 478 +               smp_read_barrier_depends();
 479 +               if (cic->key)
 480 +                       __cfq_exit_single_io_context(cfqd, cic);
 481 +
 482                 spin_unlock_irqrestore(q->queue_lock, flags);
 483         }
 484  }
 485 @@ -1472,7 +1516,6 @@
 486                 cfqq->cfqd = cfqd;
 487
 488                 cfq_mark_cfqq_prio_changed(cfqq);
 489 -               cfq_mark_cfqq_queue_new(cfqq);
 490
 491                 cfq_init_prio_data(cfqq, ioc);
 492
 493 @@ -1797,6 +1840,12 @@
 494         if (rq_is_meta(rq) && !cfqq->meta_pending)
 495                 return 1;
 496
 497 +       /*
 498 +        * Allow an RT request to pre-empt an ongoing non-RT cfqq timeslice.
 499 +        */
 500 +       if (cfq_class_rt(new_cfqq) && !cfq_class_rt(cfqq))
 501 +               return 1;
 502 +
 503         if (!cfqd->active_cic || !cfq_cfqq_wait_request(cfqq))
 504                 return 0;
 505
 506 @@ -1853,23 +1902,28 @@
 507
 508         if (cfqq == cfqd->active_queue) {
 509                 /*
 510 -                * if we are waiting for a request for this queue, let it rip
 511 -                * immediately and flag that we must not expire this queue
 512 -                * just now
 513 +                * Remember that we saw a request from this process, but
 514 +                * don't start queuing just yet. Otherwise we risk seeing lots
 515 +                * of tiny requests, because we disrupt the normal plugging
 516 +                * and merging. If the request is already larger than a single
 517 +                * page, let it rip immediately. For that case we assume that
 518 +                * merging is already done.
 519                  */
 520                 if (cfq_cfqq_wait_request(cfqq)) {
 521 +                       if (blk_rq_bytes(rq) > PAGE_CACHE_SIZE) {
 522 +                               del_timer(&cfqd->idle_slice_timer);
 523 +                               blk_start_queueing(cfqd->queue);
 524 +                       }
 525                         cfq_mark_cfqq_must_dispatch(cfqq);
 526 -                       del_timer(&cfqd->idle_slice_timer);
 527 -                       blk_start_queueing(cfqd->queue);
 528                 }
 529         } else if (cfq_should_preempt(cfqd, cfqq, rq)) {
 530                 /*
 531                  * not the active queue - expire current slice if it is
 532                  * idle and has expired it's mean thinktime or this new queue
 533 -                * has some old slice time left and is of higher priority
 534 +                * has some old slice time left and is of higher priority or
 535 +                * this new queue is RT and the current one is BE
 536                  */
 537                 cfq_preempt_queue(cfqd, cfqq);
 538 -               cfq_mark_cfqq_must_dispatch(cfqq);
 539                 blk_start_queueing(cfqd->queue);
 540         }
 541  }
 542 @@ -2129,6 +2183,12 @@
 543                 timed_out = 0;
 544
 545                 /*
 546 +                * We saw a request before the queue expired, let it through
 547 +                */
 548 +               if (cfq_cfqq_must_dispatch(cfqq))
 549 +                       goto out_kick;
 550 +
 551 +               /*
 552                  * expired
 553                  */
 554                 if (cfq_slice_used(cfqq))
 555 @@ -2144,10 +2204,8 @@
 556                 /*
 557                  * not expired and it has a request pending, let it dispatch
 558                  */
 559 -               if (!RB_EMPTY_ROOT(&cfqq->sort_list)) {
 560 -                       cfq_mark_cfqq_must_dispatch(cfqq);
 561 +               if (!RB_EMPTY_ROOT(&cfqq->sort_list))
 562                         goto out_kick;
 563 -               }
 564         }
 565  expire:
 566         cfq_slice_expired(cfqd, timed_out);
 567 --- kernel-power-2.6.28.orig/drivers/dsp/bridge/rmgr/drv.c
 568 +++ kernel-power-2.6.28/drivers/dsp/bridge/rmgr/drv.c
 569 @@ -517,11 +517,12 @@
 570                 pDMMRes = pDMMList;
 571                 pDMMList = pDMMList->next;
 572                 if (pDMMRes->dmmAllocated) {
 573 -                       status = PROC_UnMap(pDMMRes->hProcessor,
 574 -                                (void *)pDMMRes->ulDSPResAddr, pCtxt);
 575 -                       status = PROC_UnReserveMemory(pDMMRes->hProcessor,
 576 -                                (void *)pDMMRes->ulDSPResAddr);
 577 -                       pDMMRes->dmmAllocated = 0;
 578 +                       /* PROC_UnMap frees pDMMRes */
 579 +                       void *processor = pDMMRes->hProcessor;
 580 +                       void *map_addr = (void*)pDMMRes->ulDSPAddr;
 581 +                       void *rsv_addr = (void*)pDMMRes->ulDSPResAddr;
 582 +                       status = PROC_UnMap(processor, map_addr, pCtxt);
 583 +                       status = PROC_UnReserveMemory(processor, rsv_addr);
 584                 }
 585         }
 586         return status;
 587 --- kernel-power-2.6.28.orig/drivers/dsp/bridge/rmgr/proc.c
 588 +++ kernel-power-2.6.28/drivers/dsp/bridge/rmgr/proc.c
 589 @@ -750,6 +750,7 @@
 590                         break;
 591
 592                 start = vma->vm_end;
 593 +               len -= size;
 594         }
 595
 596         if (!vma)
 597 --- kernel-power-2.6.28.orig/drivers/i2c/chips/lis302dl.c
 598 +++ kernel-power-2.6.28/drivers/i2c/chips/lis302dl.c
 599 @@ -44,6 +44,7 @@
 600  #      define LIS302_CTRL1_Y           (1 << 1)
 601  #      define LIS302_CTRL1_X           (1 << 0)
 602  #define LIS302_CTRL_2                  0x21
 603 +#      define LIS302_CTRL2_BOOT        (1 << 6)
 604  #define LIS302_CTRL_3                  0x22
 605  #      define  LIS302_CTRL3_GND        0x00
 606  #      define  LIS302_CTRL3_FF_WU_1    0x01
 607 @@ -161,8 +162,13 @@
 608         if (ret < 0)
 609                 goto out;
 610
 611 -       /* REG 2 */
 612 -       /* Control High Pass filter selection. not used */
 613 +       /* REG 2
 614 +        * Boot is used to refresh internal registers
 615 +        * Control High Pass filter selection. not used
 616 +        */
 617 +       ret = lis302dl_write(c, LIS302_CTRL_2, LIS302_CTRL2_BOOT);
 618 +       if (ret < 0)
 619 +               goto out;
 620
 621         /* REG 3
 622          * Interrupt CTRL register. One interrupt pin is used for
 623 --- kernel-power-2.6.28.orig/drivers/leds/leds-lp5523.c
 624 +++ kernel-power-2.6.28/drivers/leds/leds-lp5523.c
 625 @@ -32,6 +32,7 @@
 626  #include <linux/wait.h>
 627  #include <linux/leds.h>
 628  #include <linux/leds-lp5523.h>
 629 +#include <linux/workqueue.h>
 630
 631  #define LP5523_DRIVER_NAME             "lp5523"
 632  #define LP5523_REG_ENABLE              0x00
 633 @@ -120,6 +121,8 @@
 634         u8                      led_nr;
 635         u8                      led_current;
 636         struct led_classdev     cdev;
 637 +       struct work_struct brightness_work;
 638 +       u8                      brightness;
 639  };
 640
 641  struct lp5523_chip {
 642 @@ -161,6 +164,8 @@
 643  static void lp5523_work(struct work_struct  *work);
 644  static irqreturn_t lp5523_irq(int irq, void *_chip);
 645
 646 +static void lp5523_led_brightness_work(struct work_struct *work);
 647 +
 648
 649  static int lp5523_write(struct i2c_client *client, u8 reg, u8 value)
 650  {
 651 @@ -476,6 +481,16 @@
 652                              enum led_brightness brightness)
 653  {
 654         struct lp5523_led *led = cdev_to_led(cdev);
 655 +       led->brightness = (u8)brightness;
 656 +
 657 +       schedule_work(&led->brightness_work);
 658 +}
 659 +
 660 +static void lp5523_led_brightness_work(struct work_struct *work)
 661 +{
 662 +       struct lp5523_led *led = container_of(work,
 663 +                                             struct lp5523_led,
 664 +                                             brightness_work);
 665         struct lp5523_chip *chip = led_to_lp5523(led);
 666         struct i2c_client *client = chip->client;
 667
 668 @@ -483,7 +498,7 @@
 669
 670         lp5523_write(client,
 671                      LP5523_REG_LED_PWM_BASE + led->led_nr,
 672 -                    (u8)brightness);
 673 +                    led->brightness);
 674
 675         mutex_unlock(&chip->lock);
 676  }
 677 @@ -907,6 +922,8 @@
 678                         dev_err(&client->dev, "error initializing leds\n");
 679                         goto fail2;
 680                 }
 681 +               INIT_WORK(&(chip->leds[i].brightness_work),
 682 +                         lp5523_led_brightness_work);
 683         }
 684
 685         ret = lp5523_register_sysfs(client);
 686 @@ -916,8 +933,10 @@
 687         }
 688         return ret;
 689  fail2:
 690 -       for (i = 0; i < pdata->num_leds; i++)
 691 +       for (i = 0; i < pdata->num_leds; i++) {
 692                 led_classdev_unregister(&chip->leds[i].cdev);
 693 +               cancel_work_sync(&chip->leds[i].brightness_work);
 694 +               }
 695
 696  fail1:
 697         kfree(chip);
 698 @@ -931,8 +950,10 @@
 699
 700         lp5523_unregister_sysfs(client);
 701
 702 -       for (i = 0; i < chip->num_leds; i++)
 703 +       for (i = 0; i < chip->num_leds; i++) {
 704                 led_classdev_unregister(&chip->leds[i].cdev);
 705 +               cancel_work_sync(&chip->leds[i].brightness_work);
 706 +               }
 707
 708         kfree(chip);
 709
 710 --- kernel-power-2.6.28.orig/drivers/media/radio/radio-si4713.c
 711 +++ kernel-power-2.6.28/drivers/media/radio/radio-si4713.c
 712 @@ -54,6 +54,25 @@
 713  /* module parameters */
 714  static int radio_nr = -1;      /* radio device minor (-1 ==> auto assign) */
 715
 716 +/* properties lock for write operations */
 717 +static int config_locked;
 718 +
 719 +/* saved power levels */
 720 +static unsigned int max_pl;
 721 +static unsigned int min_pl;
 722 +
 723 +/* structure for pid registration */
 724 +struct pid_list {
 725 +       pid_t pid;
 726 +       struct list_head plist;
 727 +};
 728 +
 729 +#define APP_MAX_NUM    2
 730 +
 731 +static int pid_count;
 732 +static LIST_HEAD(pid_list_head);
 733 +static struct si4713_device *si4713_dev;
 734 +
 735  /*
 736   * Sysfs properties
 737   * Read and write functions
 738 @@ -167,6 +186,37 @@
 739                                         si4713_##prop##_write);
 740
 741  /*
 742 + * Config lock property
 743 + */
 744 +static ssize_t si4713_lock_write(struct device *dev,
 745 +                               struct device_attribute *attr,
 746 +                               const char *buf,
 747 +                               size_t count)
 748 +{
 749 +       int l;
 750 +
 751 +       if (config_locked)
 752 +               return -EPERM;
 753 +
 754 +       sscanf(buf, "%d", &l);
 755 +
 756 +       if (l != 0)
 757 +               config_locked = 1;
 758 +
 759 +       return count;
 760 +}
 761 +
 762 +static ssize_t si4713_lock_read(struct device *dev,
 763 +                               struct device_attribute *attr,
 764 +                               char *buf)
 765 +{
 766 +       return sprintf(buf, "%d\n", config_locked);
 767 +}
 768 +
 769 +static DEVICE_ATTR(lock, S_IRUGO | S_IWUSR, si4713_lock_read,
 770 +                       si4713_lock_write);
 771 +
 772 +/*
 773   * Power level property
 774   */
 775  /* power_level (rw) 88 - 115 or 0 */
 776 @@ -179,6 +229,9 @@
 777         unsigned int p;
 778         int rval, pl;
 779
 780 +       if (config_locked)
 781 +               return -EPERM;
 782 +
 783         if (!sdev) {
 784                 rval = -ENODEV;
 785                 goto exit;
 786 @@ -320,6 +373,7 @@
 787                         value > MAX_TONE_OFF_TIME)
 788
 789  static struct attribute *attrs[] = {
 790 +       &dev_attr_lock.attr,
 791         &dev_attr_power_level.attr,
 792         &dev_attr_antenna_capacitor.attr,
 793         &dev_attr_rds_pi.attr,
 794 @@ -366,13 +420,118 @@
 795         return IRQ_HANDLED;
 796  }
 797
 798 +static int register_pid(pid_t pid)
 799 +{
 800 +       struct pid_list *pitem;
 801 +
 802 +       list_for_each_entry(pitem, &pid_list_head, plist) {
 803 +               if (pitem->pid == pid)
 804 +                       return -EINVAL;
 805 +       }
 806 +
 807 +       pitem = kmalloc(sizeof(struct pid_list), GFP_KERNEL);
 808 +
 809 +       if (!pitem)
 810 +               return -ENOMEM;
 811 +
 812 +       pitem->pid = pid;
 813 +
 814 +       list_add(&(pitem->plist), &pid_list_head);
 815 +       pid_count++;
 816 +
 817 +       return 0;
 818 +}
 819 +
 820 +static int unregister_pid(pid_t pid)
 821 +{
 822 +       struct pid_list *pitem, *n;
 823 +
 824 +       list_for_each_entry_safe(pitem, n, &pid_list_head, plist) {
 825 +               if (pitem->pid == pid) {
 826 +                       list_del(&(pitem->plist));
 827 +                       pid_count--;
 828 +
 829 +                       kfree(pitem);
 830 +
 831 +                       return 0;
 832 +               }
 833 +       }
 834 +       return -EINVAL;
 835 +}
 836 +
 837 +static int si4713_priv_ioctl(struct inode *inode, struct file *file,
 838 +               unsigned int cmd, unsigned long arg)
 839 +{
 840 +       unsigned int pow;
 841 +       int pl, rval;
 842 +
 843 +       if (cmd != LOCK_LOW_POWER && cmd != RELEASE_LOW_POWER)
 844 +               return video_ioctl2(inode, file, cmd, arg);
 845 +
 846 +       pl = si4713_get_power_level(si4713_dev);
 847 +
 848 +       if (pl < 0) {
 849 +               rval = pl;
 850 +               goto exit;
 851 +       }
 852 +
 853 +       if (copy_from_user(&pow, (void __user *)arg, sizeof(pow))) {
 854 +               rval = -EFAULT;
 855 +               goto exit;
 856 +       }
 857 +
 858 +       if (cmd == LOCK_LOW_POWER) {
 859 +
 860 +               if (pid_count == APP_MAX_NUM) {
 861 +                       rval = -EPERM;
 862 +                       goto exit;
 863 +               }
 864 +
 865 +               if (pid_count == 0) {
 866 +                       if (pow > pl) {
 867 +                               rval = -EINVAL;
 868 +                               goto exit;
 869 +                       } else {
 870 +                               /* Set max possible power level */
 871 +                               max_pl = pl;
 872 +                               min_pl = pow;
 873 +                       }
 874 +               }
 875 +
 876 +               rval = register_pid(current->pid);
 877 +
 878 +               if (rval)
 879 +                       goto exit;
 880 +
 881 +               /* Lower min power level if asked */
 882 +               if (pow < min_pl)
 883 +                       min_pl = pow;
 884 +               else
 885 +                       pow = min_pl;
 886 +
 887 +       } else { /* RELEASE_LOW_POWER */
 888 +               rval = unregister_pid(current->pid);
 889 +
 890 +               if (rval)
 891 +                       goto exit;
 892 +
 893 +               if (pid_count == 0) {
 894 +                       if (pow > max_pl)
 895 +                               pow = max_pl;
 896 +               }
 897 +       }
 898 +       rval = si4713_set_power_level(si4713_dev, pow);
 899 +exit:
 900 +       return rval;
 901 +}
 902 +
 903  /*
 904   * si4713_fops - file operations interface
 905   */
 906  static const struct file_operations si4713_fops = {
 907         .owner          = THIS_MODULE,
 908         .llseek         = no_llseek,
 909 -       .ioctl          = video_ioctl2,
 910 +       .ioctl          = si4713_priv_ioctl,
 911         .compat_ioctl   = v4l_compat_ioctl32,
 912  };
 913
 914 @@ -747,6 +906,9 @@
 915                 goto free_sysfs;
 916         }
 917
 918 +       /* save to global pointer for it to be accesible from ioctl() call */
 919 +       si4713_dev = sdev;
 920 +
 921         return 0;
 922
 923  free_sysfs:
 924 --- kernel-power-2.6.28.orig/drivers/media/radio/radio-si4713.h
 925 +++ kernel-power-2.6.28/drivers/media/radio/radio-si4713.h
 926 @@ -21,6 +21,9 @@
 927  #define SI4713_I2C_ADDR_BUSEN_HIGH     0x63
 928  #define SI4713_I2C_ADDR_BUSEN_LOW      0x11
 929
 930 +#define LOCK_LOW_POWER         _IOW('v', BASE_VIDIOC_PRIVATE + 0, unsigned int)
 931 +#define RELEASE_LOW_POWER      _IOW('v', BASE_VIDIOC_PRIVATE + 1, unsigned int)
 932 +
 933  /*
 934   * Platform dependent definition
 935   */
 936 --- kernel-power-2.6.28.orig/drivers/media/video/omap34xxcam.c
 937 +++ kernel-power-2.6.28/drivers/media/video/omap34xxcam.c
 938 @@ -1833,6 +1833,7 @@
 939         struct omap34xxcam_videodev *vdev = fh->vdev;
 940         struct device *isp = vdev->cam->isp;
 941         int i;
 942 +       int streamoff = 0;
 943
 944         if (omap34xxcam_daemon_release(vdev, file))
 945                 goto daemon_out;
 946 @@ -1844,6 +1845,7 @@
 947                 omap34xxcam_slave_power_set(vdev, V4L2_POWER_STANDBY,
 948                                             OMAP34XXCAM_SLAVE_POWER_ALL);
 949                 vdev->streaming = NULL;
 950 +               streamoff = 1;
 951         }
 952
 953         if (atomic_dec_return(&vdev->users) == 0) {
 954 @@ -1853,6 +1855,10 @@
 955         }
 956         mutex_unlock(&vdev->mutex);
 957
 958 +       if (streamoff)
 959 +               omap34xxcam_daemon_req_hw_reconfig(
 960 +                       vdev, OMAP34XXCAM_DAEMON_HW_RECONFIG_STREAMOFF);
 961 +
 962  daemon_out:
 963         file->private_data = NULL;
 964
 965 --- kernel-power-2.6.28.orig/drivers/mmc/host/omap_hsmmc.c
 966 +++ kernel-power-2.6.28/drivers/mmc/host/omap_hsmmc.c
 967 @@ -115,6 +115,7 @@
 968  /* Timeouts for entering power saving states on inactivity, msec */
 969  #define OMAP_MMC_DISABLED_TIMEOUT      100
 970  #define OMAP_MMC_SLEEP_TIMEOUT         1000
 971 +#define OMAP_MMC_OFF_NOSLP_TIMEOUT     3000
 972  #define OMAP_MMC_OFF_TIMEOUT           8000
 973
 974  /*
 975 @@ -1249,21 +1250,21 @@
 976
 977  /*
 978   * Dynamic power saving handling, FSM:
 979 - *   ENABLED -> DISABLED -> CARDSLEEP / REGSLEEP -> OFF
 980 - *     ^___________|          |                      |
 981 - *     |______________________|______________________|
 982 + *   ENABLED -> DISABLED -> EXTDISABLED / CARDSLEEP / REGSLEEP -> OFF
 983 + *     ^___________|                        |                      |
 984 + *     |____________________________________|______________________|
 985   *
 986 - * ENABLED:   mmc host is fully functional
 987 - * DISABLED:  fclk is off
 988 - * CARDSLEEP: fclk is off, card is asleep, voltage regulator is asleep
 989 - * REGSLEEP:  fclk is off, voltage regulator is asleep
 990 - * OFF:       fclk is off, voltage regulator is off
 991 + * ENABLED:       mmc host is fully functional
 992 + * (EXT)DISABLED: fclk is off
 993 + * CARDSLEEP:     fclk is off, card is asleep, voltage regulator is asleep
 994 + * REGSLEEP:      fclk is off, voltage regulator is asleep
 995 + * OFF:           fclk is off, voltage regulator is off
 996   *
 997   * Transition handlers return the timeout for the next state transition
 998   * or negative error.
 999   */
1000
1001 -enum {ENABLED = 0, DISABLED, CARDSLEEP, REGSLEEP, OFF};
1002 +enum {ENABLED = 0, DISABLED, EXTDISABLED, CARDSLEEP, REGSLEEP, OFF};
1003
1004  /* Handler for [ENABLED -> DISABLED] transition */
1005  static int omap_hsmmc_enabled_to_disabled(struct omap_hsmmc_host *host)
1006 @@ -1300,7 +1301,21 @@
1007         return 1;
1008  }
1009
1010 -/* Handler for [DISABLED -> REGSLEEP / CARDSLEEP] transition */
1011 +/* Big SD cards (16GiB) are prohibited from
1012 +   switching voltage regulator to asleep
1013 +   because of high current consumption */
1014 +static int omap_hsmmc_support_sleep(struct mmc_host *mmc)
1015 +{
1016 +       if (!(mmc->caps & MMC_CAP_NONREMOVABLE) &&
1017 +           ((u64)mmc->card->csd.capacity << mmc->card->csd.read_blkbits) >
1018 +           14ULL * 1024 * 1024 * 1024) {
1019 +               return 0;
1020 +       }
1021 +
1022 +       return 1;
1023 +}
1024 +
1025 +/* Handler for [DISABLED -> EXTDISABLED / REGSLEEP / CARDSLEEP] transition */
1026  static int omap_hsmmc_disabled_to_sleep(struct omap_hsmmc_host *host)
1027  {
1028         int err, new_state, sleep;
1029 @@ -1319,12 +1334,12 @@
1030                 }
1031                 new_state = CARDSLEEP;
1032         } else {
1033 -               new_state = REGSLEEP;
1034 +               new_state = omap_hsmmc_support_sleep(host->mmc) ? REGSLEEP : EXTDISABLED;
1035         }
1036
1037         sleep = omap_hsmmc_full_sleep(host->mmc->card) &&
1038                 (new_state == CARDSLEEP);
1039 -       if (mmc_slot(host).set_sleep)
1040 +       if (mmc_slot(host).set_sleep && new_state != EXTDISABLED)
1041                 mmc_slot(host).set_sleep(host->dev, host->slot_id, 1, 0,
1042                                         sleep);
1043         /* FIXME: turn off bus power and perhaps interrupts too */
1044 @@ -1334,18 +1349,20 @@
1045         mmc_release_host(host->mmc);
1046
1047         dev_dbg(mmc_dev(host->mmc), "DISABLED -> %s\n",
1048 -               host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
1049 +               host->dpm_state == CARDSLEEP ? "CARDSLEEP" :
1050 +               host->dpm_state == REGSLEEP ?  "REGSLEEP" : "EXTDISABLED");
1051
1052         if ((host->mmc->caps & MMC_CAP_NONREMOVABLE) ||
1053             mmc_slot(host).card_detect ||
1054             (mmc_slot(host).get_cover_state &&
1055              mmc_slot(host).get_cover_state(host->dev, host->slot_id)))
1056 -               return msecs_to_jiffies(OMAP_MMC_OFF_TIMEOUT);
1057 +               return msecs_to_jiffies(new_state == EXTDISABLED ?
1058 +                      OMAP_MMC_OFF_NOSLP_TIMEOUT : OMAP_MMC_OFF_TIMEOUT);
1059
1060         return 0;
1061  }
1062
1063 -/* Handler for [REGSLEEP / CARDSLEEP -> OFF] transition */
1064 +/* Handler for [EXTDISABLED / REGSLEEP / CARDSLEEP -> OFF] transition */
1065  static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host)
1066  {
1067         if (!mmc_try_claim_host(host->mmc))
1068 @@ -1364,7 +1381,8 @@
1069         host->power_mode = MMC_POWER_OFF;
1070
1071         dev_dbg(mmc_dev(host->mmc), "%s -> OFF\n",
1072 -               host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
1073 +               host->dpm_state == CARDSLEEP ? "CARDSLEEP" :
1074 +               host->dpm_state == REGSLEEP ?  "REGSLEEP" : "EXTDISABLED");
1075
1076         host->dpm_state = OFF;
1077
1078 @@ -1405,14 +1423,15 @@
1079         omap_hsmmc_context_restore(host);
1080         asleep = omap_hsmmc_full_sleep(host->mmc->card) &&
1081                 (host->dpm_state == CARDSLEEP);
1082 -       if (mmc_slot(host).set_sleep)
1083 +       if (mmc_slot(host).set_sleep && host->dpm_state != EXTDISABLED)
1084                 mmc_slot(host).set_sleep(host->dev, host->slot_id, 0,
1085                                         host->vdd, asleep);
1086         if (mmc_card_can_sleep(host->mmc))
1087                 mmc_card_awake(host->mmc);
1088
1089         dev_dbg(mmc_dev(host->mmc), "%s -> ENABLED\n",
1090 -               host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP");
1091 +               host->dpm_state == CARDSLEEP ? "CARDSLEEP" :
1092 +               host->dpm_state == REGSLEEP ?  "REGSLEEP" : "EXTDISABLED");
1093
1094         if (host->pdata->set_pm_constraints)
1095                 host->pdata->set_pm_constraints(host->dev, 1);
1096 @@ -1454,6 +1473,7 @@
1097         switch (host->dpm_state) {
1098         case DISABLED:
1099                 return omap_hsmmc_disabled_to_enabled(host);
1100 +       case EXTDISABLED:
1101         case CARDSLEEP:
1102         case REGSLEEP:
1103                 return omap_hsmmc_sleep_to_enabled(host);
1104 @@ -1484,6 +1504,7 @@
1105         }
1106         case DISABLED:
1107                 return omap_hsmmc_disabled_to_sleep(host);
1108 +       case EXTDISABLED:
1109         case CARDSLEEP:
1110         case REGSLEEP:
1111                 return omap_hsmmc_sleep_to_off(host);
1112 --- kernel-power-2.6.28.orig/drivers/net/wireless/wl12xx/wl1251_acx.c
1113 +++ kernel-power-2.6.28/drivers/net/wireless/wl12xx/wl1251_acx.c
1114 @@ -910,7 +910,7 @@
1115         }
1116
1117         *mactime = tsf_info->current_tsf_lsb |
1118 -               (tsf_info->current_tsf_msb << 31);
1119 +               ((unsigned long long) tsf_info->current_tsf_msb << 32);
1120
1121  out:
1122         kfree(tsf_info);
1123 --- kernel-power-2.6.28.orig/drivers/net/wireless/wl12xx/wl1251_cmd.c
1124 +++ kernel-power-2.6.28/drivers/net/wireless/wl12xx/wl1251_cmd.c
1125 @@ -242,7 +242,7 @@
1126         if (ret < 0) {
1127                 wl1251_error("tx %s cmd for channel %d failed",
1128                              enable ? "start" : "stop", channel);
1129 -               return ret;
1130 +               goto out;
1131         }
1132
1133         wl1251_debug(DEBUG_BOOT, "tx %s cmd channel %d",
1134 --- kernel-power-2.6.28.orig/include/linux/sched.h
1135 +++ kernel-power-2.6.28/include/linux/sched.h
1136 @@ -1665,11 +1665,11 @@
1137  static inline void wake_up_idle_cpu(int cpu) { }
1138  #endif
1139
1140 +extern unsigned int sysctl_sched_child_runs_first;
1141  #ifdef CONFIG_SCHED_DEBUG
1142  extern unsigned int sysctl_sched_latency;
1143  extern unsigned int sysctl_sched_min_granularity;
1144  extern unsigned int sysctl_sched_wakeup_granularity;
1145 -extern unsigned int sysctl_sched_child_runs_first;
1146  extern unsigned int sysctl_sched_features;
1147  extern unsigned int sysctl_sched_migration_cost;
1148  extern unsigned int sysctl_sched_nr_migrate;
1149 --- kernel-power-2.6.28.orig/include/linux/swap.h
1150 +++ kernel-power-2.6.28/include/linux/swap.h
1151 @@ -130,6 +130,17 @@
1152  #define SWAP_MAP_MAX   0x7fff
1153  #define SWAP_MAP_BAD   0x8000
1154
1155 +#define SWAP_GAP_TREE_SIZE 10
1156 +#define SWAP_GAP_RESCAN_TIMEO_MSEC 2000
1157 +#define swap_gap_len(gap) ((gap)->end - (gap)->next)
1158 +#define swap_gap_rb_entry(node) rb_entry(node, struct swap_gap_node, rb_node)
1159 +/* Struct to store gaps info */
1160 +struct swap_gap_node {
1161 +       struct rb_node rb_node;
1162 +       unsigned int next;
1163 +       unsigned int end;
1164 +};
1165 +
1166  /*
1167   * The in-memory structure used to track swap areas.
1168   */
1169 @@ -157,6 +168,9 @@
1170         unsigned int gap_next;
1171         unsigned int gap_end;
1172         unsigned int gaps_exist;
1173 +       struct rb_root gaps_tree;
1174 +       struct swap_gap_node *gap_pool_arr;
1175 +       unsigned long gap_last_scan;
1176         unsigned int lowest_bit;
1177         unsigned int highest_bit;
1178         unsigned int cluster_next;
1179 --- kernel-power-2.6.28.orig/include/net/bluetooth/sco.h
1180 +++ kernel-power-2.6.28/include/net/bluetooth/sco.h
1181 @@ -29,7 +29,7 @@
1182  #define SCO_DEFAULT_MTU                500
1183  #define SCO_DEFAULT_FLUSH_TO   0xFFFF
1184
1185 -#define SCO_CONN_TIMEOUT       (HZ * 40)
1186 +#define SCO_CONN_TIMEOUT       (HZ * 25)
1187  #define SCO_DISCONN_TIMEOUT    (HZ * 2)
1188  #define SCO_CONN_IDLE_TIMEOUT  (HZ * 60)
1189
1190 --- kernel-power-2.6.28.orig/kernel/sched_fair.c
1191 +++ kernel-power-2.6.28/kernel/sched_fair.c
1192 @@ -48,10 +48,10 @@
1193  static unsigned int sched_nr_latency = 5;
1194
1195  /*
1196 - * After fork, child runs first. (default) If set to 0 then
1197 + * After fork, child runs first. If set to 0 then
1198   * parent will (try to) run first.
1199   */
1200 -const_debug unsigned int sysctl_sched_child_runs_first = 1;
1201 +unsigned int sysctl_sched_child_runs_first __read_mostly;
1202
1203  /*
1204   * sys_sched_yield() compat mode
1205 --- kernel-power-2.6.28.orig/kernel/sysctl.c
1206 +++ kernel-power-2.6.28/kernel/sysctl.c
1207 @@ -235,6 +235,14 @@
1208  #endif
1209
1210  static struct ctl_table kern_table[] = {
1211 +       {
1212 +               .ctl_name       = CTL_UNNUMBERED,
1213 +               .procname       = "sched_child_runs_first",
1214 +               .data           = &sysctl_sched_child_runs_first,
1215 +               .maxlen         = sizeof(unsigned int),
1216 +               .mode           = 0644,
1217 +               .proc_handler   = &proc_dointvec,
1218 +       },
1219  #ifdef CONFIG_SCHED_DEBUG
1220         {
1221                 .ctl_name       = CTL_UNNUMBERED,
1222 @@ -289,14 +297,6 @@
1223         },
1224         {
1225                 .ctl_name       = CTL_UNNUMBERED,
1226 -               .procname       = "sched_child_runs_first",
1227 -               .data           = &sysctl_sched_child_runs_first,
1228 -               .maxlen         = sizeof(unsigned int),
1229 -               .mode           = 0644,
1230 -               .proc_handler   = &proc_dointvec,
1231 -       },
1232 -       {
1233 -               .ctl_name       = CTL_UNNUMBERED,
1234                 .procname       = "sched_features",
1235                 .data           = &sysctl_sched_features,
1236                 .maxlen         = sizeof(unsigned int),
1237 --- kernel-power-2.6.28.orig/mm/swapfile.c
1238 +++ kernel-power-2.6.28/mm/swapfile.c
1239 @@ -996,11 +996,55 @@
1240         spin_unlock(&mmlist_lock);
1241  }
1242
1243 +void gaps_rbtree_insert(struct swap_info_struct *sis,
1244 +                       struct swap_gap_node *node)
1245 +{
1246 +       struct rb_node **p = &sis->gaps_tree.rb_node;
1247 +       struct rb_node *parent = NULL;
1248 +       struct swap_gap_node *tmp;
1249 +
1250 +       while (*p) {
1251 +               parent = *p;
1252 +               tmp = rb_entry(parent, struct swap_gap_node, rb_node);
1253 +               if (swap_gap_len(node) < swap_gap_len(tmp))
1254 +                       p = &(*p)->rb_left;
1255 +               else
1256 +                       p = &(*p)->rb_right;
1257 +       }
1258 +       rb_link_node(&node->rb_node, parent, p);
1259 +       rb_insert_color(&node->rb_node, &sis->gaps_tree);
1260 +}
1261 +
1262 +void gaps_rbtree_add(struct swap_info_struct *sis,
1263 +                               unsigned int next, unsigned int end,
1264 +                               struct swap_gap_node **gap_min, int *pos)
1265 +{
1266 +       struct swap_gap_node *gap_node;
1267 +       if (*pos < SWAP_GAP_TREE_SIZE) {
1268 +               gap_node = &sis->gap_pool_arr[*pos];
1269 +               *pos += 1;
1270 +       } else if (swap_gap_len(*gap_min) > end - next) {
1271 +               return;
1272 +       } else {
1273 +               gap_node = *gap_min;
1274 +               rb_erase(&gap_node->rb_node, &sis->gaps_tree);
1275 +               *gap_min = swap_gap_rb_entry(rb_first(&sis->gaps_tree));
1276 +       }
1277 +       gap_node->next = next;
1278 +       gap_node->end = end;
1279 +       if (gap_min && (*gap_min == NULL ||
1280 +                       swap_gap_len(*gap_min) > swap_gap_len(gap_node)))
1281 +               *gap_min = gap_node;
1282 +       gaps_rbtree_insert(sis, gap_node);
1283 +}
1284 +
1285  /* Find the largest sequence of free pages */
1286  int find_gap(struct swap_info_struct *sis)
1287  {
1288         unsigned i, uninitialized_var(start), uninitialized_var(gap_next);
1289 -       unsigned uninitialized_var(gap_end), gap_size = 0;
1290 +       unsigned uninitialized_var(gap_end);
1291 +       struct swap_gap_node *gap_max, *gap_min = NULL;
1292 +       int pos = 0;
1293         int in_gap = 0;
1294
1295         spin_unlock(&sis->remap_lock);
1296 @@ -1017,6 +1061,11 @@
1297                 mutex_unlock(&sis->remap_mutex);
1298                 return -1;
1299         }
1300 +       if (time_after(jiffies, sis->gap_last_scan +
1301 +                       msecs_to_jiffies(SWAP_GAP_RESCAN_TIMEO_MSEC)))
1302 +               sis->gaps_tree = RB_ROOT;
1303 +       if (!RB_EMPTY_ROOT(&sis->gaps_tree))
1304 +               goto out;
1305         spin_unlock(&sis->remap_lock);
1306
1307         /*
1308 @@ -1028,11 +1077,7 @@
1309                 if (in_gap) {
1310                         if (!(sis->swap_remap[i] & 0x80000000))
1311                                 continue;
1312 -                       if (i - start > gap_size) {
1313 -                               gap_next = start;
1314 -                               gap_end = i - 1;
1315 -                               gap_size = i - start;
1316 -                       }
1317 +                       gaps_rbtree_add(sis, start, i - 1, &gap_min, &pos);
1318                         in_gap = 0;
1319                 } else {
1320                         if (sis->swap_remap[i] & 0x80000000)
1321 @@ -1043,13 +1088,14 @@
1322                 cond_resched();
1323         }
1324         spin_lock(&sis->remap_lock);
1325 -       if (in_gap && i - start > gap_size) {
1326 -               sis->gap_next = start;
1327 -               sis->gap_end = i - 1;
1328 -       } else {
1329 -               sis->gap_next = gap_next;
1330 -               sis->gap_end = gap_end;
1331 -       }
1332 +       if (in_gap)
1333 +               gaps_rbtree_add(sis, start, i - 1, &gap_min, &pos);
1334 +       sis->gap_last_scan = jiffies;
1335 +out:
1336 +       gap_max = swap_gap_rb_entry(rb_last(&sis->gaps_tree));
1337 +       rb_erase(&gap_max->rb_node, &sis->gaps_tree);
1338 +       sis->gap_next = gap_max->next;
1339 +       sis->gap_end = gap_max->end;
1340         mutex_unlock(&sis->remap_mutex);
1341         return 0;
1342  }
1343 @@ -1471,6 +1517,7 @@
1344         p->flags = 0;
1345         spin_unlock(&swap_lock);
1346         mutex_unlock(&swapon_mutex);
1347 +       kfree(p->gap_pool_arr);
1348         vfree(p->swap_remap);
1349         vfree(swap_map);
1350         inode = mapping->host;
1351 @@ -1825,6 +1872,14 @@
1352                 goto bad_swap;
1353         }
1354
1355 +       p->gap_pool_arr = kmalloc(sizeof(struct swap_gap_node)*
1356 +                               SWAP_GAP_TREE_SIZE, GFP_KERNEL);
1357 +       if (!p->gap_pool_arr) {
1358 +               error = -ENOMEM;
1359 +               goto bad_swap;
1360 +       }
1361 +       p->gaps_tree = RB_ROOT;
1362 +
1363         mutex_lock(&swapon_mutex);
1364         spin_lock(&swap_lock);
1365         if (swap_flags & SWAP_FLAG_PREFER)
1366 --- kernel-power-2.6.28.orig/net/bluetooth/hci_conn.c
1367 +++ kernel-power-2.6.28/net/bluetooth/hci_conn.c
1368 @@ -375,6 +375,9 @@
1369
1370         if (acl->state == BT_CONNECTED &&
1371                         (sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
1372 +               acl->power_save = 1;
1373 +               hci_conn_enter_active_mode(acl);
1374 +
1375                 if (lmp_esco_capable(hdev))
1376                         hci_setup_sync(sco, acl->handle);
1377                 else
1378 --- kernel-power-2.6.28.orig/net/bluetooth/hci_event.c
1379 +++ kernel-power-2.6.28/net/bluetooth/hci_event.c
1380 @@ -1056,6 +1056,8 @@
1381         if (conn) {
1382                 if (!ev->status)
1383                         conn->link_mode |= HCI_LM_AUTH;
1384 +               else
1385 +                       conn->sec_level = BT_SECURITY_LOW;
1386
1387                 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
1388
1389 @@ -1709,6 +1711,7 @@
1390                 break;
1391
1392         case 0x1c:      /* SCO interval rejected */
1393 +       case 0x1a:      /* Unsupported Remote Feature */
1394         case 0x1f:      /* Unspecified error */
1395                 if (conn->out && conn->attempt < 2) {
1396                         conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) |