filesystem (and other things that needed to be fixed before the tests
would complete), to wit:
* Include the fs ident in the filehandle; improve stale filehandle checks.
* Change definition of blksize() to use the on-dinode size instead of
the inode's i_size, so that fsck_lfs will work properly again.
* Use b_interlock in lfs_vtruncbuf.
* Postpone dirop reclamation until after the seglock has been released,
so that lfs_truncate is not called with the segment lock held.
* Don't loop in lfs_fsync(), just write everything and wait.
* Be more careful about the interlock/uobjlock in lfs_putpages: when we
lose this lock, we have to resynchronize dirtiness of pages in each
block.
* Be sure to always write indirect blocks and update metadata in
lfs_putpages; fixes a bug that caused blocks to be accounted to the
wrong segment.
first step towards per-device MAXPHYS, and has the beneficial side effect
of allowing clustering to MAXPHYS even on systems that need to run with
a reduced MAXBSIZE to get more metadata buffers.
- Under chroot it displays only the visible filesystems with appropriate paths.
- The statfs f_mntonname gets adjusted to contain the real path from root.
- While was there, fixed a bug in ext2fs, locking problems with vfs_getfsstat(),
and factored out some of the vfsop statfs() code to copy_statfs_info(). This
fixes the problem where some filesystems forgot to set fsid.
- Made coda look more like a normal fs.
to determine if this filesystem was mounted by an older kernel after
having been mounted by a newer one, to avoid some summary mismatches.
* Reinstate support for 4.2 cylinder groups (read-only, as it was before).
64 bit block pointers, extended attribute storage, and a few
other things.
This commit does not yet include the code to manipulate the extended
storage (for e.g. ACLs), this will be done later.
Originally written by Kirk McKusick and Network Associates Laboratories for
FreeBSD.
of segments to mark. However, this may be much more than lfs_nseg.
Originally this wasn't a big problem, since only the structures in the
diskblock were changed, but nowadays there's a mirror of the segflags
in the in-core superblock. This problem caused the code to walk
way past the end of that allocated area, causing memory corruption
in other kernel structures. So, use lfs_nseg as the maximum, as it should be.
While here, simplify the loop; it had become an obfuscated piece of
code overtime.
when the filesystem is unmounted, relocking the Ifile when its lock is
draining. (We can't use vfs_busy() since the process is sleeping for a
good long time.) Clean up / organize lfs.h, while I'm here.
In lfs_update_single, assert that disk addresses are either negative, or
are still positive when converted to int32_t, to prevent recurrence of a
negative/positive block problem.
fvdl