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Kernel/FATFS: Prefer read_block() over raw_read()

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`raw_read()` has proven to be a source of subtle bugs that occur as a
result of the cache and disk contents being out of sync.
This commit is contained in:
implicitfield 2024-04-09 00:31:47 +03:00 • committed by Tim Schumacher
commit b9d7e2db93
Notes: sideshowbarker 2024-07-19 01:59:31 +09:00
1 changed files with 2 additions and 2 deletions
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4
Kernel/FileSystem/FATFS/Inode.cpp
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@ -84,7 +84,7 @@ ErrorOr<Vector<BlockBasedFileSystem::BlockIndex>> FATInode::compute_block_list()
u32 fat_sector_index = fs().m_parameter_block->common_bpb()->reserved_sector_count + (fat_offset / fs().m_device_block_size);
u32 entry_offset = fat_offset % fs().m_device_block_size;
TRY(fs().raw_read(fat_sector_index, fat_sector_buffer));
TRY(fs().read_block(fat_sector_index, &fat_sector_buffer, m_device_block_size));
// Look up the next cluster to read, or read End of Chain marker from table.
cluster = cluster_number(*fat_sector, cluster, entry_offset);
@ -191,7 +191,7 @@ ErrorOr<NonnullOwnPtr<KBuffer>> FATInode::read_block_list()
for (BlockBasedFileSystem::BlockIndex block : m_block_list) {
dbgln_if(FAT_DEBUG, "FATFS: reading block: {}", block);
TRY(fs().raw_read(block, buf));
TRY(fs().read_block(block, &buf, sizeof(buffer)));
TRY(builder.append((char const*)buffer, fs().m_device_block_size));
}