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Update blocks when written

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This commit is contained in:
Baptiste Wicht 2016-08-08 21:02:03 +02:00
parent cb64e374dd
commit 21f00d577d
1 changed files with 6 additions and 0 deletions
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6
kernel/src/ata.cpp
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@ -486,6 +486,12 @@ size_t ata::write_sectors(drive_descriptor& drive, uint64_t start, uint8_t count
auto buffer = reinterpret_cast<uint8_t*>(const_cast<void*>(source)); auto buffer = reinterpret_cast<uint8_t*>(const_cast<void*>(source));
for(size_t i = 0; i < count; ++i){ for(size_t i = 0; i < count; ++i){
// If the block is in cache, simply update the cache and write through the disk
auto block = cache.block_if_present((drive.controller << 8) + drive.drive, start + i);
if(block){
std::copy_n(block, buffer, BLOCK_SIZE);
}
if(!read_write_sector(drive, start + i, buffer, false)){ if(!read_write_sector(drive, start + i, buffer, false)){
return std::ERROR_FAILED; return std::ERROR_FAILED;
} }