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Kernel: Start using StringView in the VFS class.

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The less kmalloc() we can do, the better. Calling kmalloc() disables all
interrupts while it runs, so it's directly affecting responsiveness.
This commit is contained in:
Andreas Kling 2019-04-15 14:57:27 +02:00
parent 461aa550eb
commit 13041f894f
3 changed files with 53 additions and 52 deletions
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28
Kernel/Process.cpp
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@ -287,7 +287,7 @@ int Process::do_exec(String path, Vector<String> arguments, Vector<String> envir
if (parts.is_empty())
return -ENOENT;
auto result = VFS::the().open(path, 0, 0, cwd_inode());
auto result = VFS::the().open(path.view(), 0, 0, cwd_inode());
if (result.is_error())
return result.error();
auto descriptor = result.value();
@ -905,14 +905,14 @@ int Process::sys$utime(const char* pathname, const utimbuf* buf)
mtime = now.tv_sec;
atime = now.tv_sec;
}
return VFS::the().utime(String(pathname), cwd_inode(), atime, mtime);
return VFS::the().utime(StringView(pathname), cwd_inode(), atime, mtime);
}
int Process::sys$access(const char* pathname, int mode)
{
if (!validate_read_str(pathname))
return -EFAULT;
return VFS::the().access(String(pathname), mode, cwd_inode());
return VFS::the().access(StringView(pathname), mode, cwd_inode());
}
int Process::sys$fcntl(int fd, int cmd, dword arg)
@ -967,14 +967,14 @@ int Process::sys$lstat(const char* path, stat* statbuf)
{
if (!validate_write_typed(statbuf))
return -EFAULT;
return VFS::the().stat(String(path), O_NOFOLLOW_NOERROR, cwd_inode(), *statbuf);
return VFS::the().stat(StringView(path), O_NOFOLLOW_NOERROR, cwd_inode(), *statbuf);
}
int Process::sys$stat(const char* path, stat* statbuf)
{
if (!validate_write_typed(statbuf))
return -EFAULT;
return VFS::the().stat(String(path), O_NOFOLLOW_NOERROR, cwd_inode(), *statbuf);
return VFS::the().stat(StringView(path), O_NOFOLLOW_NOERROR, cwd_inode(), *statbuf);
}
int Process::sys$readlink(const char* path, char* buffer, ssize_t size)
@ -1008,7 +1008,7 @@ int Process::sys$chdir(const char* path)
{
if (!validate_read_str(path))
return -EFAULT;
auto directory_or_error = VFS::the().open_directory(String(path), cwd_inode());
auto directory_or_error = VFS::the().open_directory(StringView(path), cwd_inode());
if (directory_or_error.is_error())
return directory_or_error.error();
m_cwd = *directory_or_error.value();
@ -1648,7 +1648,7 @@ int Process::sys$mkdir(const char* pathname, mode_t mode)
return -EINVAL;
if (pathname_length >= 255)
return -ENAMETOOLONG;
return VFS::the().mkdir(String(pathname, pathname_length), mode & ~umask(), cwd_inode());
return VFS::the().mkdir(StringView(pathname, pathname_length), mode & ~umask(), cwd_inode());
}
clock_t Process::sys$times(tms* times)
@ -1816,14 +1816,14 @@ int Process::sys$link(const char* old_path, const char* new_path)
return -EFAULT;
if (!validate_read_str(new_path))
return -EFAULT;
return VFS::the().link(String(old_path), String(new_path), cwd_inode());
return VFS::the().link(StringView(old_path), StringView(new_path), cwd_inode());
}
int Process::sys$unlink(const char* pathname)
{
if (!validate_read_str(pathname))
return -EFAULT;
return VFS::the().unlink(String(pathname), cwd_inode());
return VFS::the().unlink(StringView(pathname), cwd_inode());
}
int Process::sys$symlink(const char* target, const char* linkpath)
@ -1832,14 +1832,14 @@ int Process::sys$symlink(const char* target, const char* linkpath)
return -EFAULT;
if (!validate_read_str(linkpath))
return -EFAULT;
return VFS::the().symlink(String(target), String(linkpath), cwd_inode());
return VFS::the().symlink(StringView(target), StringView(linkpath), cwd_inode());
}
int Process::sys$rmdir(const char* pathname)
{
if (!validate_read_str(pathname))
return -EFAULT;
return VFS::the().rmdir(String(pathname), cwd_inode());
return VFS::the().rmdir(StringView(pathname), cwd_inode());
}
int Process::sys$read_tsc(dword* lsw, dword* msw)
@ -1856,7 +1856,7 @@ int Process::sys$chmod(const char* pathname, mode_t mode)
{
if (!validate_read_str(pathname))
return -EFAULT;
return VFS::the().chmod(String(pathname), mode, cwd_inode());
return VFS::the().chmod(StringView(pathname), mode, cwd_inode());
}
int Process::sys$fchmod(int fd, mode_t mode)
@ -1871,7 +1871,7 @@ int Process::sys$chown(const char* pathname, uid_t uid, gid_t gid)
{
if (!validate_read_str(pathname))
return -EFAULT;
return VFS::the().chown(String(pathname), uid, gid, cwd_inode());
return VFS::the().chown(StringView(pathname), uid, gid, cwd_inode());
}
void Process::finalize()
@ -2452,7 +2452,7 @@ int Process::sys$rename(const char* oldpath, const char* newpath)
return -EFAULT;
if (!validate_read_str(newpath))
return -EFAULT;
return VFS::the().rename(String(oldpath), String(newpath), cwd_inode());
return VFS::the().rename(StringView(oldpath), StringView(newpath), cwd_inode());
}
int Process::sys$shm_open(const char* name, int flags, mode_t mode)