These functions are already referenced throughout the manpage -- this makes their
presence more apparent.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
so that we can use it in iflib to detect pause frames.
The igb(4) driver definitely used to use this in its old timer function and
I see no reason to restrict it to that driver only.
Sponsored by: Limelight Networks
This matches the getcwd() definition.
This is technically an ABI change, but that would only effect 64-bit
big-endian platforms that pass arguments on the stack. We have none of
those.
Reviewed by: jhb
Obtained from: CheriABI
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D9428
Users attempting to create images from mtree METALOG files created by
installworld often use -F when they should be passing the METALOG file
in place of a directory. This is often produces difficult to debug
error reports.
Reviewed by: emaste
MFC after: 1 week
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D10038
Current implementation of dosfs in libstand reads full File Allocation Table to
the RAM in the initialization code. In the extreme case of FAT32 filesystem,
this structure will take up to 256-1024 Mb of loader memory, depending on the
cluster size.
Proposed patch reduces libstands/dosfs memory requirements to 128 Kb for all
variants of dosfs filesystem. For FAT12 and FAT16 filesystems, File Allocation
Table is cached in full, as before. For FAT32, File Allocation Table is broken
into the equal blocks of 128 Kilobytes (32768 entries), and only current block
is cached.
Because per-filesystem context is now small, global FAT cache (for all
instances of dosfs filesystem) is replaced by local per-instance cache.
Submitted by: Mikhail.Kupchik_gmail.com
Reviewed by: tsoome, allanjude
Differential Revision: https://reviews.freebsd.org/D9547
In a cross-build, the build-tools are native host binaries. We do not
want to rebuild them when building for the target. Bmake previously
did not support checking .NOMETA on an existing target, so .NOMETA_CMP
was used here. However, .NOMETA_CMP still triggers meta mode conditions
if the number of commands or the command changes. In r312467 the paths
to build ncurses files were modified and thus triggered meta mode to
rebuild the build tools (make_keys, make_hash) in ncurses during the
target build. Bmake 20160604 committed in r301462 changed .NOMETA to
also skip meta mode logic for an existing .meta file as well, thus it
is now the proper fix here.
I explored moving the build-tools output to WORLDTMP/tools with
relatively good success, but have concerns that doing so would be
problematic for downstream vendors who use LOCAL_TOOL_DIRS and
expect the tools to be in current OBJDIR for the target. It also
adds more complexity into finding the tools during target build
and handling of where they are for rescue/rescue and
mkcsmapper_static/mkesdb_static which should really not be connected in
build-tools anyway.
MFC after: 2 weeks
Reported by: many
Sponsored by: Dell EMC Isilon
The current zfs reader is only checking first label from each device, however,
we do have 4 labels on device and we should check all 4 to be protected
against disk failures and incomplete label updates.
The difficulty is about the fact that 2 label copies are in front of the
pool data, and 2 are at the end, which means, we have to know the size of
the pool data area.
Since we have now the mechanism from common/disk.c to use the partition
information, it does help us in this task; however, there are still some
corner cases.
Namely, if the pool is created without partition, directly on the disk,
and firmware will give us the wrong size for the disk, we only can check
the first two label copies.
Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D10203
Based on the change in r242386, it seems clear that scred was intended to
be released in all paths at exit.
No functional change. This line's indent was just the result of a bad copy
paste from the previous free() in an early exit path.
Reported by: PVS-Studio
Sponsored by: Dell EMC Isilon
The emalloc set of error-checking memory allocation routines were added
to libnetbsd in r316572. Use them in makefs to reduce differences with
NetBSD.
NetBSD revs:
cd9660.c 1.39
ffs.c 1.56
makefs.c 1.42
walk.c 1.27
cd9660/cd9660_archimedes.c 1.2
cd9660/cd9660_eltorito.c 1.20
cd9660/cd9660_write.c 1.16
cd9660/iso9660_rrip.c 1.12
ffs/buf.c 1.17
ffs/mkfs.c 1.26
Obtained from: NetBSD
While we have mechanisms in place to protect ourselves against the read
behind the disk end, there is still one corner case. As the GPT
partition table has backup table at the end of the disk, and we yet
do not know the size of the disk (if the wrong size is provided by the
firmware/bios), we need to limit the reads to avoid read ahead in such case.
Note: this update does add constant into stand.h, so the incremental build
will need to get local stand.h updated first.
Reviewed by: allanjude
Differential Revision: https://reviews.freebsd.org/D10187
The description tells it all, as an side note, I am using uint8_t instead of
u_char as the partition table data really is handled as byte stream, not
char array.
Reviewed by: allanjude, imp
Differential Revision: https://reviews.freebsd.org/D10180
(and accurate).
T4 and later have an extra bit for page shift so the maximum page size
is 8TB (shift of 12 + 31) instead of 128MB (12 + 15). This saves space
in the chip's PBL (physical buffer list) when registering very large
memory regions.
MFC after: 3 days
Sponsored by: Chelsio Communications
These are error-checked versions of memory allocation routines used by
NetBSD code, and are being added to facilitate updates to makefs.
Reviewed by: ngie
Differential Revision: https://reviews.freebsd.org/D10291
- Move all bitmap related functions from bitops.h to bitmap.h, similar
to what Linux does.
- Apply some minor code cleanup and simplifications to optimize the
generated code when using static inline functions.
- Implement the following list of bitmap functions which are needed by
drm-next and ibcore:
- bitmap_find_next_zero_area_off()
- bitmap_find_next_zero_area()
- bitmap_or()
- bitmap_and()
- bitmap_xor()
- Add missing include directives to the qlnxe driver
(davidcs@ has been notified)
MFC after: 1 week
Sponsored by: Mellanox Technologies
etc/rc.d/dhclient unconditionally testing true when called by a devd
rule during boot, ignoring statically assigned IP addresses in rc.conf.
Requested by: des@
In FreeBSD thread IDs and procedure IDs have distinct number
spaces. When asking for the group leader task ID in the LinuxKPI,
return the procedure ID and let this resolve to the first task in the
procedure having a valid LinuxKPI task structure pointer.
MFC after: 1 week
Sponsored by: Mellanox Technologies
like open, close and fault using the character device pager.
Some notes about the implementation:
1) Linux drivers set the vm_ops and vm_private_data fields during a
mmap() call to indicate that the driver wants to use the LinuxKPI VM
operations. Else these operations are not used.
2) The vm_private_data pointer is associated with a VM area structure
and inserted into an internal LinuxKPI list. If the vm_private_data
pointer already exists, the existing VM area structure is used instead
of the allocated one which gets freed.
3) The LinuxKPI's vm_private_data pointer is used as the callback
handle for the FreeBSD VM object. The VM subsystem in FreeBSD has a
similar list to identify equal handles and will only call the
character device pager's close function once.
4) All LinuxKPI VM operations are serialized through the mmap_sem
sempaphore, which is per procedure, which prevents simultaneous access
to the shared VM area structure when receiving page faults.
Obtained from: kmacy @
MFC after: 1 week
Sponsored by: Mellanox Technologies
tasks in the belonging procedure already have a valid mm_struct and
reference that instead.
The mm_struct in the LinuxKPI should be shared among all tasks
belonging to the same procedure. This has to do with with the mmap_sem
semaphore which should serialize all VM operations inside a given
procedure. Linux based drivers depend on this behaviour.
MFC after: 1 week
Sponsored by: Mellanox Technologies
Areas not covered still [positive functionality wise] are:
- sbuf_{clear,get,set}_flags
- sbuf_new (in particular, with fixed buffers, etc).
Some basic negative testing has been added, but more will be added in the
future.
This work was in part to validate work done by cem in r288223, and ian
before that.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
These functions were added to sbuf(9) in r279992, but never
exposed to userspace. Expose them now so they can be used/tested.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
atf_utils_wait(3) should be used in combination with atf_utils_fork(3),
not itself (atf_utils_wait(3)).
MFC after: 2 months
Sponsored by: Dell EMC Isilon
- move sbuf_bcopyin(9) and sbuf_copyin(9) near sbuf_new_for_sysctl(9), as
all three functions are kernel-only APIs.
- add #ifdef _KERNEL around sbuf_*copyin and sbuf_new_for_sysctl(9) to
make it visually clear that they are kernel-only APIs.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
This shortens the column count on many lines considerably.
While here, add "(void)" to sbuf_new_auto(3) for consistency with style(9)
recommendations.
MFC after: 2 months
Sponsored by: Dell EMC Isilon
Previously, 450.status-security would always set rc=3 in inline mode,
because it doesn't know whether "periodic security" is going to find
anything interesting. But this annoyingly results in daily reports that
simply say "Security check: \n\n-- End of daily output --".
This change fixes that by testing whether "periodic security" printed
anything, and setting 450.status-security's exit status to 3 if it did. An
alternative would be to change the exit status of periodic(8) to be the
worst of its scripts' exit statuses, but that would be a more intrusive
change.
Reviewed by: brian
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D10267
The "dispatch a frame from the A-MPDU reorder buffer" code is essentially
duplicated in a couple of places. This refactors it out into a single
place in preparation for A-MSDU in A-MPDU offload support, where multiple
A-MSDUs are decap'ed in hardware to 802.3/802.11 frames, but with the
same sequence number.
Reviewed by: avos
Differential Revision: https://reviews.freebsd.org/D10240
