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Kernel: Add Inode::truncate(size).

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- Use this to implement the O_TRUNC open flag.
- Fix creat() to pass O_CREAT | O_TRUNC | O_WRONLY.
- Make sure we truncate wherever appropriate.
This commit is contained in:
Andreas Kling 2019-03-27 16:42:30 +01:00
parent e9f2cc3595
commit 0058da734e
Notes: sideshowbarker 2024-07-19 14:55:24 +09:00
8 changed files with 26 additions and 8 deletions
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10
Kernel/Ext2FileSystem.cpp
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@ -1391,6 +1391,16 @@ KResult Ext2FSInode::chown(uid_t uid, gid_t gid)
return KSuccess;
}
KResult Ext2FSInode::truncate(int size)
{
LOCKER(m_lock);
if (m_raw_inode.i_size == size)
return KSuccess;
m_raw_inode.i_size = size;
set_metadata_dirty(true);
return KSuccess;
}
unsigned Ext2FS::total_block_count() const
{
LOCKER(m_lock);