aaf662d5b1
- Flattened nested bootupd/bootupd/ structure to root level - Moved all core project files to root directory - Added proper Debian packaging structure (debian/ directory) - Created build scripts and CI configuration - Improved project organization for CI/CD tools - All Rust source, tests, and configuration now at root level - Added GitHub Actions workflow for automated testing - Maintained all original functionality while improving structure
50 lines
1.5 KiB
Rust
Executable file
50 lines
1.5 KiB
Rust
Executable file
use rustix::fd::AsFd;
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use rustix::ffi as c;
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use rustix::io::Errno;
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use rustix::ioctl::opcode;
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use rustix::{io, ioctl};
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use crate::util::SignalTerminationGuard;
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fn ioctl_fifreeze<Fd: AsFd>(fd: Fd) -> io::Result<()> {
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// SAFETY: `FIFREEZE` is a no-argument opcode.
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// `FIFREEZE` is defined as `_IOWR('X', 119, int)`.
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unsafe {
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let ctl = ioctl::NoArg::<{ opcode::read_write::<c::c_int>(b'X', 119) }>::new();
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ioctl::ioctl(fd, ctl)
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}
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}
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fn ioctl_fithaw<Fd: AsFd>(fd: Fd) -> io::Result<()> {
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// SAFETY: `FITHAW` is a no-argument opcode.
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// `FITHAW` is defined as `_IOWR('X', 120, int)`.
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unsafe {
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let ctl = ioctl::NoArg::<{ opcode::read_write::<c::c_int>(b'X', 120) }>::new();
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ioctl::ioctl(fd, ctl)
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}
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}
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/// syncfs() doesn't flush the journal on XFS,
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/// and since GRUB2 can't read the XFS journal, the system
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/// could fail to boot.
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///
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/// http://marc.info/?l=linux-fsdevel&m=149520244919284&w=2
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/// https://github.com/ostreedev/ostree/pull/1049
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///
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/// This function always call syncfs() first, then calls
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/// `ioctl(FIFREEZE)` and `ioctl(FITHAW)`, ignoring `EOPNOTSUPP` and `EPERM`
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pub(crate) fn fsfreeze_thaw_cycle<Fd: AsFd>(fd: Fd) -> anyhow::Result<()> {
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rustix::fs::syncfs(&fd)?;
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let _guard = SignalTerminationGuard::new()?;
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let freeze = ioctl_fifreeze(&fd);
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match freeze {
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// Ignore permissions errors (tests)
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Err(Errno::PERM) => Ok(()),
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// Ignore unsupported FS
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Err(Errno::NOTSUP) => Ok(()),
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Ok(()) => Ok(ioctl_fithaw(fd)?),
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_ => Ok(freeze?),
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}
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}
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