117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2023-2025 Christoph Hellwig.
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* Copyright (c) 2024-2025, Western Digital Corporation or its affiliates.
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*/
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#include "xfs_platform.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_log_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_inode.h"
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#include "xfs_rtgroup.h"
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#include "xfs_zones.h"
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static bool
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xfs_validate_blk_zone_seq(
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struct xfs_mount *mp,
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struct blk_zone *zone,
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unsigned int zone_no,
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xfs_rgblock_t *write_pointer)
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{
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switch (zone->cond) {
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case BLK_ZONE_COND_EMPTY:
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*write_pointer = 0;
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return true;
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case BLK_ZONE_COND_IMP_OPEN:
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case BLK_ZONE_COND_EXP_OPEN:
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case BLK_ZONE_COND_CLOSED:
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case BLK_ZONE_COND_ACTIVE:
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if (zone->wp < zone->start ||
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zone->wp >= zone->start + zone->capacity) {
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xfs_warn(mp,
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"zone %u write pointer (%llu) outside of zone.",
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zone_no, zone->wp);
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return false;
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}
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*write_pointer = XFS_BB_TO_FSB(mp, zone->wp - zone->start);
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return true;
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case BLK_ZONE_COND_FULL:
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*write_pointer = XFS_BB_TO_FSB(mp, zone->capacity);
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return true;
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case BLK_ZONE_COND_NOT_WP:
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case BLK_ZONE_COND_OFFLINE:
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case BLK_ZONE_COND_READONLY:
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xfs_warn(mp, "zone %u has unsupported zone condition 0x%x.",
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zone_no, zone->cond);
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return false;
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default:
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xfs_warn(mp, "zone %u has unknown zone condition 0x%x.",
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zone_no, zone->cond);
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return false;
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}
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}
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static bool
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xfs_validate_blk_zone_conv(
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struct xfs_mount *mp,
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struct blk_zone *zone,
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unsigned int zone_no)
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{
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switch (zone->cond) {
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case BLK_ZONE_COND_NOT_WP:
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return true;
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default:
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xfs_warn(mp,
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"conventional zone %u has unsupported zone condition 0x%x.",
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zone_no, zone->cond);
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return false;
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}
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}
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bool
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xfs_validate_blk_zone(
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struct xfs_mount *mp,
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struct blk_zone *zone,
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unsigned int zone_no,
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uint32_t expected_size,
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uint32_t expected_capacity,
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xfs_rgblock_t *write_pointer)
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{
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/*
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* Check that the zone capacity matches the rtgroup size stored in the
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* superblock. Note that all zones including the last one must have a
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* uniform capacity.
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*/
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if (XFS_BB_TO_FSB(mp, zone->capacity) != expected_capacity) {
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xfs_warn(mp,
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"zone %u capacity (%llu) does not match RT group size (%u).",
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zone_no, XFS_BB_TO_FSB(mp, zone->capacity),
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expected_capacity);
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return false;
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}
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if (XFS_BB_TO_FSB(mp, zone->len) != expected_size) {
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xfs_warn(mp,
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"zone %u length (%llu) does not match geometry (%u).",
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zone_no, XFS_BB_TO_FSB(mp, zone->len),
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expected_size);
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return false;
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}
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switch (zone->type) {
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case BLK_ZONE_TYPE_CONVENTIONAL:
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return xfs_validate_blk_zone_conv(mp, zone, zone_no);
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case BLK_ZONE_TYPE_SEQWRITE_REQ:
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return xfs_validate_blk_zone_seq(mp, zone, zone_no,
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write_pointer);
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default:
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xfs_warn(mp, "zoned %u has unsupported type 0x%x.",
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zone_no, zone->type);
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return false;
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}
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}
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