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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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1d319ac6fe
Zoned file systems not only don't use the global frextents counter, but for them the in-memory percpu counter also includes reservations taken before even allocating delalloc extent records, so it will never match the per-zone used information. Disable all updates and verification of the sb counter for zoned file systems as it isn't useful for them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2018-2024 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <djwong@kernel.org>
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_mount.h"
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#include "xfs_defer.h"
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#include "xfs_btree.h"
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#include "xfs_bit.h"
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#include "xfs_log_format.h"
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_inode.h"
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#include "xfs_alloc.h"
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#include "xfs_ialloc.h"
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#include "xfs_rmap.h"
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#include "xfs_health.h"
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#include "scrub/xfs_scrub.h"
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#include "scrub/scrub.h"
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#include "scrub/common.h"
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#include "scrub/trace.h"
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#include "scrub/repair.h"
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#include "scrub/fscounters.h"
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/*
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* FS Summary Counters
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* ===================
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*
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* We correct errors in the filesystem summary counters by setting them to the
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* values computed during the obligatory scrub phase. However, we must be
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* careful not to allow any other thread to change the counters while we're
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* computing and setting new values. To achieve this, we freeze the
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* filesystem for the whole operation if the REPAIR flag is set. The checking
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* function is stricter when we've frozen the fs.
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*/
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/*
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* Reset the superblock counters. Caller is responsible for freezing the
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* filesystem during the calculation and reset phases.
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*/
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int
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xrep_fscounters(
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struct xfs_scrub *sc)
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{
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struct xfs_mount *mp = sc->mp;
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struct xchk_fscounters *fsc = sc->buf;
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/*
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* Reinitialize the in-core counters from what we computed. We froze
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* the filesystem, so there shouldn't be anyone else trying to modify
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* these counters.
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*/
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if (!fsc->frozen) {
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ASSERT(fsc->frozen);
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return -EFSCORRUPTED;
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}
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trace_xrep_reset_counters(mp, fsc);
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percpu_counter_set(&mp->m_icount, fsc->icount);
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percpu_counter_set(&mp->m_ifree, fsc->ifree);
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xfs_set_freecounter(mp, XC_FREE_BLOCKS, fsc->fdblocks);
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/*
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* Online repair is only supported on v5 file systems, which require
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* lazy sb counters and thus no update of sb_fdblocks here. But
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* sb_frextents only uses a lazy counter with rtgroups, and thus needs
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* to be updated directly here otherwise. And for that we need to keep
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* track of the delalloc reservations separately, as they are are
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* subtracted from m_frextents, but not included in sb_frextents.
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*/
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if (!xfs_has_zoned(mp)) {
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xfs_set_freecounter(mp, XC_FREE_RTEXTENTS,
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fsc->frextents - fsc->frextents_delayed);
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if (!xfs_has_rtgroups(mp))
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mp->m_sb.sb_frextents = fsc->frextents;
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}
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return 0;
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}
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