last in the list rather than first.
This makes the resouces print in the 4.x order rather than the 5.x order
(eg fdc0 at 0x3f0-0x3f5,0x3f7 is 4.x, but 0x3f7,0x3f0-0x3f5 is 5.x). This
also means that the pci code will once again print the resources in BAR
ascending order.
w/o problems than I was before... This simply brings back the knote_delete
as knlist_delete which will also drop the knote's, instead of just clearing
the list and seeing _ONESHOT...
Fix a race where if a note was _INFLUX and _DETACHED, it could end up being
modified... whoopse..
MFC after: 1 week
Prodded by: ambrisko and dwhite
alignment restrictive, and help performance on some ethernet cards which
currently copy the entire packet a couple bytes to get the packet aligned
properly...
Wordsmithing by: dwhite
Obtained from: NetBSD (code only)
I'll clean it up later: rwatson
session in tprintf(). SESSRELE() needs to properly dispose of the
sessions mutex.
Add sessrele() which does the proper cleanup and have SESSRELE() call it.
Use SESSRELE also in pgdelete().
Found by: Coverity (ID:526)
it to get better hashing in vfs_hash.
In case of an insert collision in vfs_hash_insert(), put the loosing vnode
on a special list so that vfs_hash_remove() can just assume that it is on
a list.
Drop the VI_HASHED flag.
- Move VSHOULDBUSY, VSHOULDFREE, and VTRYRECYCLE into vfs_subr.c so
no one else attempts to grow a dependency on them.
- Now that objects with pages hold the vnode we don't have to do unlocked
checks for the page count in the vm object in VSHOULDFREE. These three
macros could simply check for holdcnt state transitions to determine
whether the vnode is on the free list already, but the extra safety
the flag affords us is probably worth the minimal cost.
- The leafonly sysctl and code have been dead for several years now,
remove the sysctl and the code that employed it from vtryrecycle().
- vtryrecycle() also no longer has to check the object's page count as
the object holds the vnode until it reaches 0.
Sponsored by: Isilon Systems, Inc.
sys/bus_dma.h instead of being copied in every single arch. This slightly
reorders a flag that was specific to AXP and thus changes the ABI there.
The interface still relies on bus_space definitions found in <machine/bus.h>
so it cannot be included on its own yet, but that will be fixed at a later
date. Add an MD <machine/bus_dma.h> for ever arch for consistency and to
allow for future MD augmentation of the API. sparc64 makes heavy use of
this right now due to its different bus_dma implemenation.
to get from (mount + inode) to vnode. These tables are mostly
copy&pasted from UFS, sized based on desiredvnodes and therefore
quite large (128K-512K). Several filesystems are buggy enough that
they allocate the hash table even before they know if they will
ever be used or not.
Add "vfs_hash", a system wide hash table, which will replace all
the per-filesystem hash-tables.
The fields we add to struct vnode will more or less be saved in
the respective filesystems inodes.
Having one central implementation will save code and will allow us
to justify the complexity of code to dynamically (re)size the hash
at a later point.
to use only the holdcnt to determine whether a vnode may be recycled,
simplifying the V* macros as well as vtryrecycle(), etc.
Sponsored by: Isilon Systems, Inc.
vtryrecycle(). All obj refs also ref the vnode.
- Consistently use v_incr_usecount() to increment the usecount. This will
be more important later.
Sponsored by: Isilon Systems, Inc.
against recycling.
- Modify VSHOULDFREE, VCANRECYCLE, etc. now that certain flags are no
longer important. Remove VMIGHTFREE as it is only used in one place.
Sponsored by: Isilon Systems, Inc.
from uipc_socket.c to uipc_accf.c in do_getopt_accept_filter(), so that it
now matches do_setopt_accept_filter(). Slightly reformulate the logic to
match the optimistic allocation of storage for the argument in advance,
and slightly expand the coverage of the socket lock.
SIGPIPE signal for the duration of the sento-family syscalls. Use it to
replace previously added hack in Linux layer based on temporarily setting
SO_NOSIGPIPE flag.
Suggested by: alfred
Add support for passing in a mutex. If NULL is passed a global
subr_unit mutex is used.
Add alloc_unrl() which expects the mutex to be held.
Allocating a unit will never sleep as it does not need to allocate
memory.
Cut possible range in half so we can use -1 to mean "out of number".
Collapse first and last runs into the head by means of counters.
This saves memory in the common case(s).
asynchronously by different threads. Thus, declare as volatile the
reference count that is accessed through m_ext's pointer, ref_cnt.
Revert the previous change, revision 1.144, that casts as volatile a
single dereference of ref_cnt.
Reviewed by: bmilekic, dwhite
Problem reported by: kris
MFC after: 3 days
for a signal, because kernel stack is swappable, this causes page fault
in kernel under heavy swapping case. Fix this bug by eliminating unneeded
code.
place.
This moves the dependency on GCC's and other compiler's features into
the central sys/cdefs.h file, while the individual source files can
then refer to #ifdef __COMPILER_FEATURE_FOO where they by now used to
refer to #if __GNUC__ > 3.1415 && __BARC__ <= 42.
By now, GCC and ICC (the Intel compiler) have been actively tested on
IA32 platforms by netchild. Extension to other compilers is supposed
to be possible, of course.
Submitted by: netchild
Reviewed by: various developers on arch@, some time ago
if either INVARIANTS or INVARIANT_SUPPORT is defined so that kernel modules
that want to use mtx_assert() only need to define INVARIANTS.
MFC after: 1 week
introducing the disk formats for _RuneLocale and friends.
The disk formats do not have (useless) pointers and have 32-bit
quantities instead of rune_t and long. (htonl(3) only works
with 32-bit quantities, so there's no loss).
Bootstrap mklocale(1) when necessary. (Bootstrapping from 4.x
would be trivial (verified), but we no longer provide pre-5.3
source upgrades and this is the first commit to actually break
it.)
clock time to uptime because wall clock time may go backwards.
This is a change in the API which will impact SNMP agents who are using
ifi_epoch to set RFC2233's ifCounterDiscontinuityTime. None are know to
exist today. This will not impact applications that are using the
<index, epoch> tuple to verify interface uniqueness except that it
eliminates a race which could lead to a false assumption of uniqueness.
Because this is a behavior change, bump __FreeBSD_version.
Discussed with: re (jhb, scottl)
MFC after: 3 days
Pointed out by: pkh (way back at EuroBSDCon)
Pointy hat: brooks
PAGE_SIZE.
Unlike originator of the PR suggests retain MAXSHELLCMDLEN definition
(he has been proposing to replace it with PAGE_SIZE everywhere), not only
this reduced the diff significantly, but prevents code obfuscation and also
allows to increase/decrease this parameter easily if needed.
PR: kern/64196
Submitted by: Magnus Bäckström <b@etek.chalmers.se>
