the unwary if the code were called in slightly different ways.
1) In ufs_bmaparray() the code for calculating 'runb' will stop one block
short of the first entry in an indirect block. i.e. if an indirect block
contains N block numbers b[0]..b[N-1] then the code will never check if
b[0] and b[1] are sequential. For reference, compare with the equivalent
code that deals with direct blocks.
2) In ufs_lookup() there is an off-by-one error in the test that checks
if dp->i_diroff is outside the range of the the current directory size.
This is completely harmless, since the following while-loop condition
'dp->i_offset < endsearch' is never met, so the code immediately
does a second pass starting at dp->i_offset = 0.
3) Again in ufs_lookup(), the condition in a sanity check is wrong
for directories that are longer than one block. This bug means that
the sanity check is only effective for small directories.
Submitted by: Ian Dowse <iedowse@maths.tcd.ie>
necessary. Pass an absolute block number too, instead of receiving a
relative one in realstrategy(), as bcache_strategy() requires this.
The fix is sligthly different from the one in the PR.
PR: 17098
Submitted by: John Hood <jhood@sitaranetworks.com>
was the last unit number received. If it changes, it flushes the cache.
Add bcache_flash().
The actual fix is sligthly different from the one in the PR.
PR: 17098
Submitted by: John Hood <jhood@sitaranetworks.com>
flushed if the unit changes. Compute the absolute offset before
bcache_strategy() instead of after.
The actual fix is sligthly different for the one in the PR.
PR: 17098
Submitted by: John Hood <jhood@sitaranetworks.com>
to recycle full fsids after only 16 mount/unmount's. This is probably
too often for exported fsids. Now we recycle the full fsids only
after 2^16 mount/ umount's and only ensure uniqueness in the lower 16
bits if there have been <= 256 calls to vfs_getnewfsid() since the
system started.
Previously, it was being called whether it was needed or not and the
ASU flag was being set (as a side affect of calling 'suser()') in
cases where superuser privileges were not actually needed. This was
all pointed out to me by Bruce Evans.
Reviewed by: bde
- Make iface nodes removable on shutdown since FreeBSD now supports
removable interfaces
- Simplify supporting new protocols using family_enqueue(); add a
few new ones including IPv6
- Add support for configurable interface mode using new
NGM_IFACE_POINT2POINT and NGM_IFACE_BROADCAST control messages
- Remove NGM_IFACE_GET_IFADDRS control message; it just duplicates
the functionality of SIOCGIFCONF
pte's from zero. The TLB is supposed to be invalidated when pte's are
changed _to_ zero, but this doesn't occur in all cases for global pages
(PG_G stops invltlb() from working, and invltlb_1pg() is not used
enough).
PR: 14141, 16568
Submitted by: dillon
rest of the code in (so changing media actually works.)
Add a few more register definitions for use with this and other new code.
Print a few details in the probe message; this should be useful in
bug reports and such but should not add to the clutter.
