Sinipelto
/
banan-os
forked from Bananymous/banan-os
1
0
Fork 0
Code Pull Requests Activity

Kernel: Fix ext2 file write

This commit is contained in:
Bananymous 2023-09-11 01:20:39 +03:00
parent c55bb77ff5
commit aa59142bfa
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
kernel/kernel/FS/Ext2/Inode.cpp
View File

@ -227,7 +227,7 @@ namespace Kernel
const uint8_t* u8buffer = (const uint8_t*)buffer;
size_t written = 0;
size_t to_write = count;
// Write partial block
if (offset % block_size)
@ -236,7 +236,7 @@ namespace Kernel
uint32_t block_offset = offset % block_size;
uint32_t data_block_index = TRY(this->data_block_index(block_index));
uint32_t to_copy = BAN::Math::min<uint32_t>(block_size - block_offset, written);
uint32_t to_copy = BAN::Math::min<uint32_t>(block_size - block_offset, to_write);
m_fs.read_block(data_block_index, block_buffer.span());
memcpy(block_buffer.data() + block_offset, buffer, to_copy);
@ -244,10 +244,10 @@ namespace Kernel
u8buffer += to_copy;
offset += to_copy;
written -= to_copy;
to_write -= to_copy;
}
while (written >= block_size)
while (to_write >= block_size)
{
uint32_t data_block_index = TRY(this->data_block_index(offset / block_size));
@ -255,15 +255,15 @@ namespace Kernel
u8buffer += block_size;
offset += block_size;
written -= block_size;
to_write -= block_size;
}
if (written > 0)
if (to_write > 0)
{
uint32_t data_block_index = TRY(this->data_block_index(offset / block_size));
m_fs.read_block(data_block_index, block_buffer.span());
memcpy(block_buffer.data(), u8buffer, written);
memcpy(block_buffer.data(), u8buffer, to_write);
m_fs.write_block(data_block_index, block_buffer.span());
}