bark if file descriptor goes above FD_SETSIZE. from openbsd.
XXX needs more checking.
XXX what is tab stop size for this code? need more consistency...
XXX we should really remove #ifdef CRAY, UNICOS5 and such.
we just cannot read it through.
because of the disklabel.
Fix a problem with inode block handling that sometimes caused the wrong
blocks to be read, causing either cleaning failures or panics with v2 file
systems.
Kernels and tools understand both v1 and v2 filesystems; newfs_lfs
generates v2 by default. Changes for the v2 layout include:
- Segments of non-PO2 size and arbitrary block offset, so these can be
matched to convenient physical characteristics of the partition (e.g.,
stripe or track size and offset).
- Address by fragment instead of by disk sector, paving the way for
non-512-byte-sector devices. In theory fragments can be as large
as you like, though in reality they must be smaller than MAXBSIZE in size.
- Use serial number and filesystem identifier to ensure that roll-forward
doesn't get old data and think it's new. Roll-forward is enabled for
v2 filesystems, though not for v1 filesystems by default.
- The inode free list is now a tailq, paving the way for undelete (undelete
is not yet implemented, but can be without further non-backwards-compatible
changes to disk structures).
- Inode atime information is kept in the Ifile, instead of on the inode;
that is, the inode is never written *just* because atime was changed.
Because of this the inodes remain near the file data on the disk, rather
than wandering all over as the disk is read repeatedly. This speeds up
repeated reads by a small but noticeable amount.
Other changes of note include:
- The ifile written by newfs_lfs can now be of arbitrary length, it is no
longer restricted to a single indirect block.
- Fixed an old bug where ctime was changed every time a vnode was created.
I need to look more closely to make sure that the times are only updated
during write(2) and friends, not after-the-fact during a segment write,
and certainly not by the cleaner.
define HAVE_SETPROCTITLE and HAVE_SOCKADDR_SA_LEN, because certain
operating systems from a vendor which claims to be the biggest unix
vendor as of two months ago #define BSD4_4 and THEN REMOVE BITS OF THE
4.4BSD API!
anyway, this won't affect other systems which use lukemftpd (e.g,
other 4.4BSD derived systems), because autoconf will set HAVE_SETPROCTITLE
as appropriate. the point of this little code fragment is to remove the
need to have -DHAVE_SETPROCTITLE ... in our libexec/ftpd/Makefile
</rant>
wiz