55 lines
2.0 KiB
Diff
55 lines
2.0 KiB
Diff
From d5b2f439a1a36938b4f7659bc7c40870db928c4a Mon Sep 17 00:00:00 2001
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From: root <root@localhost.localdomain>
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Date: Wed, 13 Mar 2019 17:38:14 +0800
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Subject: [PATCH 03/19] metadata: remove an unused and incorrect overflow check
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Remove another instance of an invalid check for metadata
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overflow during read. The previous instance was removed
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in commit 5fb15b193.
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This was checking for metadata that that overflowed the
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circular disk metadata buffer during read, but such metadata
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cannot be written, so it shouldn't be possible to find see.
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Also, the check was incorrect and could trigger when there
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was no overflow.
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---
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lib/format_text/format-text.c | 15 ---------------
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1 file changed, 15 deletions(-)
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diff --git a/lib/format_text/format-text.c b/lib/format_text/format-text.c
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index 4160ba8..4e5b08e 100644
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--- a/lib/format_text/format-text.c
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+++ b/lib/format_text/format-text.c
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@@ -553,14 +553,6 @@ static struct volume_group *_vg_read_raw_area(struct format_instance *fid,
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if (rlocn->offset + rlocn->size > mdah->size)
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wrap = (uint32_t) ((rlocn->offset + rlocn->size) - mdah->size);
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- if (wrap > rlocn->offset) {
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- log_error("Metadata for VG %s on %s at %llu size %llu is too large for circular buffer.",
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- vgname, dev_name(area->dev),
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- (unsigned long long)(area->start + rlocn->offset),
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- (unsigned long long)rlocn->size);
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- goto out;
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- }
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-
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vg = text_read_metadata(fid, NULL, vg_fmtdata, use_previous_vg, area->dev, primary_mda,
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(off_t) (area->start + rlocn->offset),
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(uint32_t) (rlocn->size - wrap),
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@@ -1249,13 +1241,6 @@ int read_metadata_location_summary(const struct format_type *fmt,
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if (rlocn->offset + rlocn->size > mdah->size)
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wrap = (uint32_t) ((rlocn->offset + rlocn->size) - mdah->size);
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- if (wrap > rlocn->offset) {
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- log_error("Metadata location on %s at %llu is too large for circular buffer.",
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- dev_name(dev_area->dev),
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- (unsigned long long)(dev_area->start + rlocn->offset));
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- return 0;
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- }
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-
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/*
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* Did we see this metadata before?
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* Look in lvmcache to see if there is vg info matching
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--
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2.19.1
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