Module Name:	syssrc
Committed By:	lukem
Date:		Thu Jun 20 03:52:00 UTC 2002

Modified Files:
	syssrc/sys/ufs/lfs [netbsd-1-6]: lfs_syscalls.c

Log Message:
Pull up revision 1.67 (requested by perseant in ticket #325):
For synchronous writes, keep separate i/o counters for each write, so
processes don't have to wait for one another to finish (e.g., nfsd seems
to be a little happier now, though I haven't measured the difference).
Synchronous checkpoints, however, must always wait for all i/o to finish.
Take the contents of the callback functions and have them run in thread
context instead (aiodoned thread).  lfs_iocount no longer has to be
protected in splbio(), and quite a bit less of the segment construction
loop needs to be in splbio() as well.
If lfs_markv is handed a block that is not the correct size according to
the inode, refuse to process it.  (Formerly it was extended to the "correct"
size.)  This is possibly more prone to deadlock, but less prone to corruption.
lfs_segclean now outright refuses to clean segments that appear to have live
bytes in them.  Again this may be more prone to deadlock but avoids
corruption.
Replace ufsspec_close and ufsfifo_close with LFS equivalents; this means
that no UFS functions need to know about LFS_ITIMES any more.  Remove
the reference from ufs/inode.h.
Tested on i386, test-compiled on alpha.


To generate a diff of this commit:
cvs rdiff -r1.65 -r1.65.4.1 syssrc/sys/ufs/lfs/lfs_syscalls.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.