Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (C) 2010 Red Hat, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include "xfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include "xfs_shared.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include "xfs_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include "xfs_log_format.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include "xfs_trans_resv.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include "xfs_sb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include "xfs_mount.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include "xfs_btree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include "xfs_alloc_btree.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include "xfs_alloc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "xfs_discard.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "xfs_error.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "xfs_extent_busy.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include "xfs_trace.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include "xfs_log.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) STATIC int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) xfs_trim_extents(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	struct xfs_mount	*mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	xfs_agnumber_t		agno,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	xfs_daddr_t		start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	xfs_daddr_t		end,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	xfs_daddr_t		minlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	uint64_t		*blocks_trimmed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct block_device	*bdev = mp->m_ddev_targp->bt_bdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	struct xfs_btree_cur	*cur;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct xfs_buf		*agbp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct xfs_agf		*agf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	struct xfs_perag	*pag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	int			error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	int			i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	pag = xfs_perag_get(mp, agno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	 * Force out the log.  This means any transactions that might have freed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	 * space before we take the AGF buffer lock are now on disk, and the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	 * volatile disk cache is flushed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	xfs_log_force(mp, XFS_LOG_SYNC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	error = xfs_alloc_read_agf(mp, NULL, agno, 0, &agbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		goto out_put_perag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	agf = agbp->b_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	cur = xfs_allocbt_init_cursor(mp, NULL, agbp, agno, XFS_BTNUM_CNT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	 * Look up the longest btree in the AGF and start with it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	error = xfs_alloc_lookup_ge(cur, 0, be32_to_cpu(agf->agf_longest), &i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	 * Loop until we are done with all extents that are large
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	 * enough to be worth discarding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	while (i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		xfs_agblock_t	fbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		xfs_extlen_t	flen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		xfs_daddr_t	dbno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		xfs_extlen_t	dlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 		error = xfs_alloc_get_rec(cur, &fbno, &flen, &i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		if (XFS_IS_CORRUPT(mp, i != 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			error = -EFSCORRUPTED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 		ASSERT(flen <= be32_to_cpu(agf->agf_longest));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 		 * use daddr format for all range/len calculations as that is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 		 * the format the range/len variables are supplied in by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 		 * userspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		dbno = XFS_AGB_TO_DADDR(mp, agno, fbno);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 		dlen = XFS_FSB_TO_BB(mp, flen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 		 * Too small?  Give up.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		if (dlen < minlen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 			trace_xfs_discard_toosmall(mp, agno, fbno, flen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		 * If the extent is entirely outside of the range we are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		 * supposed to discard skip it.  Do not bother to trim
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		 * down partially overlapping ranges for now.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 		if (dbno + dlen < start || dbno > end) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 			trace_xfs_discard_exclude(mp, agno, fbno, flen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 			goto next_extent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		 * If any blocks in the range are still busy, skip the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		 * discard and try again the next time.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		if (xfs_extent_busy_search(mp, agno, fbno, flen)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			trace_xfs_discard_busy(mp, agno, fbno, flen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 			goto next_extent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 		trace_xfs_discard_extent(mp, agno, fbno, flen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 		error = blkdev_issue_discard(bdev, dbno, dlen, GFP_NOFS, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 		if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		*blocks_trimmed += flen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) next_extent:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 		error = xfs_btree_decrement(cur, 0, &i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		if (fatal_signal_pending(current)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 			error = -ERESTARTSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 			goto out_del_cursor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) out_del_cursor:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	xfs_btree_del_cursor(cur, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	xfs_buf_relse(agbp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) out_put_perag:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	xfs_perag_put(pag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)  * trim a range of the filesystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144)  * Note: the parameters passed from userspace are byte ranges into the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)  * filesystem which does not match to the format we use for filesystem block
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)  * addressing. FSB addressing is sparse (AGNO|AGBNO), while the incoming format
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)  * is a linear address range. Hence we need to use DADDR based conversions and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)  * comparisons for determining the correct offset and regions to trim.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) xfs_ioc_trim(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	struct xfs_mount		*mp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	struct fstrim_range __user	*urange)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	struct request_queue	*q = bdev_get_queue(mp->m_ddev_targp->bt_bdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	unsigned int		granularity = q->limits.discard_granularity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	struct fstrim_range	range;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	xfs_daddr_t		start, end, minlen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	xfs_agnumber_t		start_agno, end_agno, agno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	uint64_t		blocks_trimmed = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	int			error, last_error = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (!capable(CAP_SYS_ADMIN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		return -EPERM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	if (!blk_queue_discard(q))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		return -EOPNOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	 * We haven't recovered the log, so we cannot use our bnobt-guided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	 * storage zapping commands.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		return -EROFS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if (copy_from_user(&range, urange, sizeof(range)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	range.minlen = max_t(u64, granularity, range.minlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	minlen = BTOBB(range.minlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	 * Truncating down the len isn't actually quite correct, but using
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	 * BBTOB would mean we trivially get overflows for values
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	 * of ULLONG_MAX or slightly lower.  And ULLONG_MAX is the default
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	 * used by the fstrim application.  In the end it really doesn't
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	 * matter as trimming blocks is an advisory interface.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (range.start >= XFS_FSB_TO_B(mp, mp->m_sb.sb_dblocks) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	    range.minlen > XFS_FSB_TO_B(mp, mp->m_ag_max_usable) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	    range.len < mp->m_sb.sb_blocksize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	start = BTOBB(range.start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	end = start + BTOBBT(range.len) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	if (end > XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks) - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 		end = XFS_FSB_TO_BB(mp, mp->m_sb.sb_dblocks)- 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	start_agno = xfs_daddr_to_agno(mp, start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	end_agno = xfs_daddr_to_agno(mp, end);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	for (agno = start_agno; agno <= end_agno; agno++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 		error = xfs_trim_extents(mp, agno, start, end, minlen,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 					  &blocks_trimmed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 			last_error = error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 			if (error == -ERESTARTSYS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 				break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	if (last_error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 		return last_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	range.len = XFS_FSB_TO_B(mp, blocks_trimmed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	if (copy_to_user(urange, &range, sizeof(range)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }