This value seems to never have been used anywhere.
This makes it consistent with it's cousin p_vm_msize (which is in pages as
well and has several uses).
Use a common variable (savedEnv) to track that to avoid wasting memory.
Also, if providing setenv and unsetenv, do getenv too to ensure a consistent
set.
Add a bunch of kasserts to check more stringently that ufs_direnter
did not compact across directory blocks. Don't bother fetching
subsequent I/O blocks from the directory: ufs_lookup guarantees that
it's not necessary, and the kasserts check this to be sure.
The message fired when we were looking at the start of an I/O block,
not when we crossed from the end of one to the start of another. I
believe it fired only when tulr->ulr_offset was a multiple of the I/O
block size (fs_bsize), which can happen if ufs_lookup either finds an
entry or finds free space at the start of an I/O block.
If ufs_lookup found an entry, none of this ulr recalculation logic
should kick in -- if tvp != NULL, then tulr->ulr_count is garbage, so
it's not merely unnecessary but wrong (although I suspect harmless in
the end) to read it in ufs_rename_overlap_p in consideration of
whether to recalculate fulr.
Discussed with chuq and dholland.
ok dholland
depend on new devname_r(3) as heart. Add /dev/pts magic directly to
devname(3). While it can lead to returning non-existing paths, the
behavior is more consistent that way. Drop caching layer in devname(3),
it doesn't buy anything for the common case of having access to the
database. Teach devname(3) proper fallback behavior of scanning /dev.
Create both old-style and new-style database for now in /etc/rc.d/sysdb.
- ubc_uiomove: avoid the re-lock dance, since the lock is shared these days.
- uvm_aio_aiodone: acquire the lock before modifying the page flags.
Tested by martin@.
The values are 'u_long' so copying them into an 'int' temporary
(to avoid writing an out of range value into the actual variable)
doesn't work too well at all.
Shows up on amd64 now that the sysctl values are marked as 64bit.
sparc64 must have been badly broken for ages.
- usbd_alloc_buffer
- usbd_free_buffe
- usbd_get_buffer
- usbd_do_request
- usbd_do_request_flags
begin to document the changes present on the USBMP branch:
- usbd_sync_transfer_sig
- usb_detach_wait
- usb_detach_broadcast
create a new section on device detachment. XXX needs a code example.
