the bio and buffer structures to have daddr64_t bio_pblkno,
b_blkno, and b_lblkno fields which allows access to disks
larger than a Terabyte in size. This change also requires
that the VOP_BMAP vnode operation accept and return daddr64_t
blocks. This delta should not affect system operation in
any way. It merely sets up the necessary interfaces to allow
the development of disk drivers that work with these larger
disk block addresses. It also allows for the development of
UFS2 which will use 64-bit block addresses.
over someone else's fixes; this is at least offensive. If you
have problems doing a proper merge, we are here, your fellow
committers. :-(
Reapply markup fixes from revision 1.2 and fix some more. Also
fix the $OpenBSD$ tag.
installed ones under /boot (which we may not even have in the
case of a cross build).
This introduced chicken and egg problem - we need boot images
early in the "depend" stage but they have not yet been built.
Work around this by excluding the generated makeboot.c source
from the "depend" list; it's okay because we hardcode all its
dependencies explicitly. We actually lose the dependency bit
on <sys/types.h> but it's probably okay too as the only thing
we use is the u_char datatype and this is unlikely to change.
After all, it's normal for sloppy cleaning to cause problems.
beast.FreeBSD.org running 5.0-CURRENT alpha has been able to
cross build i386 world with this patch.
Prodded by: gallatin
kern/kern_descrip.c:
Aquire Giant in fdrop_locked when file refcount hits zero, this removes
the requirement for the caller to own Giant for the most part.
kern/kern_ktrace.c:
Aquire Giant in ktrgenio, simplifies locking in upper read/write syscalls.
kern/vfs_bio.c:
Aquire Giant in bwillwrite if needed.
kern/sys_generic.c
Giant pushdown, remove Giant for:
read, pread, write and pwrite.
readv and writev aren't done yet because of the possible malloc calls
for iov to uio processing.
kern/sys_socket.c
Grab giant in the socket fo_read/write functions.
kern/vfs_vnops.c
Grab giant in the vnode fo_read/write functions.
