add wifi6 8852be driver

hc

2024-12-19 9370bb92b2d16684ee45cf24e879c93c509162da

 kernel/fs/xfs/xfs_fsops.c
..
..
@@ -11,15 +11,11 @@
11
11
 #include "xfs_trans_resv.h"
12
12
 #include "xfs_sb.h"
13
13
 #include "xfs_mount.h"
14
-#include "xfs_defer.h"
15
14
 #include "xfs_trans.h"
16
15
 #include "xfs_error.h"
17
-#include "xfs_btree.h"
18
16
 #include "xfs_alloc.h"
19
17
 #include "xfs_fsops.h"
20
18
 #include "xfs_trans_space.h"
21
-#include "xfs_rtalloc.h"
22
-#include "xfs_trace.h"
23
19
 #include "xfs_log.h"
24
20
 #include "xfs_ag.h"
25
21
 #include "xfs_ag_resv.h"
..
..
@@ -40,7 +36,6 @@
40
36
 	xfs_rfsblock_t		new;
41
37
 	xfs_agnumber_t		oagcount;
42
38
 	xfs_trans_t		*tp;
43
-	LIST_HEAD		(buffer_list);
44
39
 	struct aghdr_init_data	id = {};
45
40
 
46
41
 	nb = in->newblocks;
..
..
@@ -252,9 +247,9 @@
252
247
 	if (mp->m_sb.sb_imax_pct) {
253
248
 		uint64_t icount = mp->m_sb.sb_dblocks * mp->m_sb.sb_imax_pct;
254
249
 		do_div(icount, 100);
255
-		mp->m_maxicount = icount << mp->m_sb.sb_inopblog;
250
+		M_IGEO(mp)->maxicount = XFS_FSB_TO_INO(mp, icount);
256
251
 	} else
257
-		mp->m_maxicount = 0;
252
+		M_IGEO(mp)->maxicount = 0;
258
253
 
259
254
 	/* Update secondary superblocks now the physical grow has completed */
260
255
 	error = xfs_update_secondary_sbs(mp);
..
..
@@ -290,7 +285,7 @@
290
285
  * exported through ioctl XFS_IOC_FSCOUNTS
291
286
  */
292
287
 
293
-int
288
+void
294
289
 xfs_fs_counts(
295
290
 	xfs_mount_t		*mp,
296
291
 	xfs_fsop_counts_t	*cnt)
..
..
@@ -303,7 +298,6 @@
303
298
 	spin_lock(&mp->m_sb_lock);
304
299
 	cnt->freertx = mp->m_sb.sb_frextents;
305
300
 	spin_unlock(&mp->m_sb_lock);
306
-	return 0;
307
301
 }
308
302
 
309
303
 /*
..
..
@@ -382,46 +376,36 @@
382
376
 	 * If the request is larger than the current reservation, reserve the
383
377
 	 * blocks before we update the reserve counters. Sample m_fdblocks and
384
378
 	 * perform a partial reservation if the request exceeds free space.
379
+	 *
380
+	 * The code below estimates how many blocks it can request from
381
+	 * fdblocks to stash in the reserve pool.  This is a classic TOCTOU
382
+	 * race since fdblocks updates are not always coordinated via
383
+	 * m_sb_lock.  Set the reserve size even if there's not enough free
384
+	 * space to fill it because mod_fdblocks will refill an undersized
385
+	 * reserve when it can.
385
386
 	 */
386
-	error = -ENOSPC;
387
-	do {
388
-		free = percpu_counter_sum(&mp->m_fdblocks) -
389
-						mp->m_alloc_set_aside;
390
-		if (free <= 0)
391
-			break;
392
-
393
-		delta = request - mp->m_resblks;
394
-		lcounter = free - delta;
395
-		if (lcounter < 0)
396
-			/* We can't satisfy the request, just get what we can */
397
-			fdblks_delta = free;
398
-		else
399
-			fdblks_delta = delta;
400
-
387
+	free = percpu_counter_sum(&mp->m_fdblocks) -
388
+						xfs_fdblocks_unavailable(mp);
389
+	delta = request - mp->m_resblks;
390
+	mp->m_resblks = request;
391
+	if (delta > 0 && free > 0) {
401
392
 		/*
402
393
 		 * We'll either succeed in getting space from the free block
403
-		 * count or we'll get an ENOSPC. If we get a ENOSPC, it means
404
-		 * things changed while we were calculating fdblks_delta and so
405
-		 * we should try again to see if there is anything left to
406
-		 * reserve.
394
+		 * count or we'll get an ENOSPC.  Don't set the reserved flag
395
+		 * here - we don't want to reserve the extra reserve blocks
396
+		 * from the reserve.
407
397
 		 *
408
-		 * Don't set the reserved flag here - we don't want to reserve
409
-		 * the extra reserve blocks from the reserve.....
398
+		 * The desired reserve size can change after we drop the lock.
399
+		 * Use mod_fdblocks to put the space into the reserve or into
400
+		 * fdblocks as appropriate.
410
401
 		 */
402
+		fdblks_delta = min(free, delta);
411
403
 		spin_unlock(&mp->m_sb_lock);
412
404
 		error = xfs_mod_fdblocks(mp, -fdblks_delta, 0);
405
+		if (!error)
406
+			xfs_mod_fdblocks(mp, fdblks_delta, 0);
413
407
 		spin_lock(&mp->m_sb_lock);
414
-	} while (error == -ENOSPC);
415
-
416
-	/*
417
-	 * Update the reserve counters if blocks have been successfully
418
-	 * allocated.
419
-	 */
420
-	if (!error && fdblks_delta) {
421
-		mp->m_resblks += fdblks_delta;
422
-		mp->m_resblks_avail += fdblks_delta;
423
408
 	}
424
-
425
409
 out:
426
410
 	if (outval) {
427
411
 		outval->resblks = mp->m_resblks;
..
..
@@ -439,13 +423,10 @@
439
423
 {
440
424
 	switch (inflags) {
441
425
 	case XFS_FSOP_GOING_FLAGS_DEFAULT: {
442
-		struct super_block *sb = freeze_bdev(mp->m_super->s_bdev);
443
-
444
-		if (sb && !IS_ERR(sb)) {
426
+		if (!freeze_bdev(mp->m_super->s_bdev)) {
445
427
 			xfs_force_shutdown(mp, SHUTDOWN_FORCE_UMOUNT);
446
-			thaw_bdev(sb->s_bdev, sb);
428
+			thaw_bdev(mp->m_super->s_bdev);
447
429
 		}
448
-
449
430
 		break;
450
431
 	}
451
432
 	case XFS_FSOP_GOING_FLAGS_LOGFLUSH:
..
..
@@ -470,20 +451,13 @@
470
451
  */
471
452
 void
472
453
 xfs_do_force_shutdown(
473
-	xfs_mount_t	*mp,
454
+	struct xfs_mount *mp,
474
455
 	int		flags,
475
456
 	char		*fname,
476
457
 	int		lnnum)
477
458
 {
478
-	int		logerror;
459
+	bool		logerror = flags & SHUTDOWN_LOG_IO_ERROR;
479
460
 
480
-	logerror = flags & SHUTDOWN_LOG_IO_ERROR;
481
-
482
-	if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
483
-		xfs_notice(mp,
484
-	"%s(0x%x) called from line %d of file %s.  Return address = "PTR_FMT,
485
-			__func__, flags, lnnum, fname, __return_address);
486
-	}
487
461
 	/*
488
462
 	 * No need to duplicate efforts.
489
463
 	 */
..
..
@@ -499,27 +473,31 @@
499
473
 	if (xfs_log_force_umount(mp, logerror))
500
474
 		return;
501
475
 
476
+	if (flags & SHUTDOWN_FORCE_UMOUNT) {
477
+		xfs_alert(mp,
478
+"User initiated shutdown received. Shutting down filesystem");
479
+		return;
480
+	}
481
+
482
+	xfs_notice(mp,
483
+"%s(0x%x) called from line %d of file %s. Return address = "PTR_FMT,
484
+		__func__, flags, lnnum, fname, __return_address);
485
+
502
486
 	if (flags & SHUTDOWN_CORRUPT_INCORE) {
503
487
 		xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_CORRUPT,
504
-    "Corruption of in-memory data detected.  Shutting down filesystem");
488
+"Corruption of in-memory data detected.  Shutting down filesystem");
505
489
 		if (XFS_ERRLEVEL_HIGH <= xfs_error_level)
506
490
 			xfs_stack_trace();
507
-	} else if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
508
-		if (logerror) {
509
-			xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
510
-		"Log I/O Error Detected.  Shutting down filesystem");
511
-		} else if (flags & SHUTDOWN_DEVICE_REQ) {
512
-			xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
513
-		"All device paths lost.  Shutting down filesystem");
514
-		} else if (!(flags & SHUTDOWN_REMOTE_REQ)) {
515
-			xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
516
-		"I/O Error Detected. Shutting down filesystem");
517
-		}
491
+	} else if (logerror) {
492
+		xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_LOGERROR,
493
+			"Log I/O Error Detected. Shutting down filesystem");
494
+	} else {
495
+		xfs_alert_tag(mp, XFS_PTAG_SHUTDOWN_IOERROR,
496
+			"I/O Error Detected. Shutting down filesystem");
518
497
 	}
519
-	if (!(flags & SHUTDOWN_FORCE_UMOUNT)) {
520
-		xfs_alert(mp,
521
-	"Please umount the filesystem and rectify the problem(s)");
522
-	}
498
+
499
+	xfs_alert(mp,
500
+		"Please unmount the filesystem and rectify the problem(s)");
523
501
 }
524
502
 
525
503
 /*