in the mbuf header.
* Use the new cached paddr feature of the pool_cache API to record
the physical address of mbuf clusters. (We cannot use a ctor for
clusters, since clusters have no constructed form; they are merely
buffers).
Bus_dma back-ends may use the cached physical addresses to save having to
extract the physical address from virtual.
* Provide space in m_ext recording the vm_page *'s for an SOSEND_LOAN_CHUNK-
sized non-cluster external buffer. Use this in the sosend_loan code to
save having to extract the physical address from virtual and then look
up the vm_page *'s.
* Provide an indication that an external buffer is mapped read-only at
the MMU. Set this flag for the external buffer in the sosend_loan
case, since loaned pages are always mapped read-only. Bus_dma back-ends
may use this information to save cache flushing, since a cache flush of
a read-only mapping is redundant on some architectures (the cache would
have already been flushed when making the mapping read-only).
Part 2 in a series of simple patches contributed by Wasabi Systems
to improve network performance.
objects. Clients of the pool_cache API must consistently use
the "paddr" variants or not, otherwise behavior is undefined.
Enable this on Alpha, ARM, MIPS, and x86. Other platforms must
define POOL_VTOPHYS() in the appropriate manner in order to enable
the feature.
Part 1 of a series of simple patches contributed by Wasabi Systems
to improve network performance.
* Remove DEFAULT_PAGE_SIZE. We don't use PAGE_SIZE the way Mach did.
* In uvm_setpagesize(), if we are called with uvmexp.pagesize == 0,
then assert that PAGE_SIZE != 0 (i.e. a constant), and set uvmexp.pagesize
accordingly.
* Provide defaults for MIN_PAGE_SIZE and MAX_PAGE_SIZE if not defined
by <machine/vmparam.h>. If PAGE_SIZE is not a constant, MIN_PAGE_SIZE
and MAX_PAGE_SIZE must be provided.
* If MIN_PAGE_SIZE and MAX_PAGE_SIZE are not equal (i.e. PAGE_SIZE may
not be a constant in all configurations), then ensure that PAGE_SIZE
and friends expand to variable references for LKMs.
logic as used by <machine/param.h> to define constant PAGE_SIZE if
possible.
Also define the minimum and maximum PAGE_SIZE that might appear in
any given configuration (4K and 8K, respectively).
characters are typed fast one after the other (<10 ms).
The visual effect under vi(1) was even more impressive. ;-)
This bug was actually introduced inadvertantly in 1995 in rev 1.4.
replace the VOP__UNLOCK() macros with VOP_UNLOCK() directly - it just
obfuscates the code
similarily for VN_LOCK()->vn_lock()
unlock dvp before ntvattrget call in ntfs_lookup() in '..' case, not after
fix problem in ntfs_lookup() where PDIRUNLOCK was not set in one code path
after unlocking parent directory vnode
or server IP address - this allows 'mount_smbfs //192.168.0.1/foo /mnt'
to work as expected, i.e. being same as if -I 192.168.0.1 would be
specified too
perhaps we should resolve the IP to real NetBIOS name, but
apparently both Samba 2.2.8 and Windows XP accept the logon request
even when the NetBIOS name isn't correct
adresses PR kern/20991 by Robert Vargason
