From b1e8f5983ff5d9726867e67d2863ac0ed8a4d067 Mon Sep 17 00:00:00 2001
From: Kushal Singh <kushal.singh@students.iiit.ac.in>
Date: Wed, 18 Feb 2015 22:20:04 +0530
Subject: [PATCH] * Added an offset to ensure ensure that it lies within
MBRLimit * Fixes 8990 after the value returned by BlockSize() was corrected.
---
src/add-ons/disk_systems/intel/PartitionMapAddOn.cpp | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/src/add-ons/disk_systems/intel/PartitionMapAddOn.cpp b/src/add-ons/disk_systems/intel/PartitionMapAddOn.cpp
index d9c1450..aaa9264 100644
|
a
|
b
|
PartitionMapAddOn::CreatePartitionHandle(BMutablePartition* partition,
|
| 90 | 90 | bool |
| 91 | 91 | PartitionMapAddOn::CanInitialize(const BMutablePartition* partition) |
| 92 | 92 | { |
| 93 | | // If it's big enough, but not too big (ie. larger than 2^32 blocks) we can |
| 94 | | // initialize it. |
| 95 | | return partition->Size() >= 2 * partition->BlockSize() |
| 96 | | && partition->Size() / partition->BlockSize() < UINT32_MAX; |
| | 93 | off_t MBRSizeLimit = ((off_t)1 <<32) * partition->BlockSize(); |
| | 94 | // Limit on size is (MaxSectorCount)*(SectorSize)=(2^32)*(SectorSize). |
| | 95 | |
| | 96 | // If it's big enough, but not too big (ie. larger than 2^32 blocks) we can |
| | 97 | // initialize it. Also, the highest offset of a partition should be lesser |
| | 98 | // than MBR size limit. |
| | 99 | return partition->Size() >= 2 * partition->BlockSize() |
| | 100 | && partition->Size() < MBRSizeLimit |
| | 101 | && partition->Offset() < MBRSizeLimit; |
| 97 | 102 | } |
| 98 | 103 | |
| 99 | 104 | |
