François Tigeot [Sat, 5 Jan 2019 21:22:08 +0000 (22:22 +0100)]
drm/i915: Enable the I915_GEM_USERPTR ioctl
Start building some of the associated code
François Tigeot [Sat, 5 Jan 2019 20:56:07 +0000 (21:56 +0100)]
drm: Partially sync drm_mm.c with Linux 4.7.10
Sascha Wildner [Sat, 5 Jan 2019 20:43:50 +0000 (21:43 +0100)]
kernel: Remove two no longer used sysinit ids.
* SI_BOOT2_BIOS was used for longrun and other i386 specific stuff only.
The last usage was removed in
c292f53669b4862993224dcf5c489355215be50d.
* SI_SUB_CLIST was removed in the recent tty clist refactoring commit,
see
4725869b060b0e647b6c64480a0ce50f64ff23bb.
Sascha Wildner [Sat, 5 Jan 2019 18:58:04 +0000 (19:58 +0100)]
kernel: Remove unused *.h files from SRCS in kernel module Makefiles. (2)
Forgot two Makefiles.
Sascha Wildner [Sat, 5 Jan 2019 17:58:10 +0000 (18:58 +0100)]
kernel: Remove kernel profiling bits.
It was broken on i386, is even more broken on x86_64 and isn't
worth fixing.
Discussed-with: dillon
Sascha Wildner [Sat, 5 Jan 2019 13:25:45 +0000 (14:25 +0100)]
Clean up the USB driver directories, remove unbuilt source.
Remove old source that has not (yet) been ported. If any of these
drivers would get ported in the future, it would be from current
FreeBSD source anyway. Keeping the old source around just confuses
when grepping in /usr/src.
Sascha Wildner [Sat, 5 Jan 2019 13:19:33 +0000 (14:19 +0100)]
lib/libc: Remove a file that is not used in libc.
Sascha Wildner [Fri, 4 Jan 2019 20:38:57 +0000 (21:38 +0100)]
kernel: Remove unused *.h files from SRCS in kernel module Makefiles.
They were found by checking the preprocessed code of the files
in SRCS to see if the header was included at some point.
After removal, the preprocessed source of a build with the old
Makefiles was compared against one with the changes (for various
kernel configurations and when building just from /usr/src) to
verify that the commit leads to no functional change.
François Tigeot [Thu, 3 Jan 2019 20:50:43 +0000 (21:50 +0100)]
drm/i915: Add i915_gem_dmabuf.c
This just means we now build more dma-buf code, not that the
end result is usable.
François Tigeot [Thu, 3 Jan 2019 20:08:24 +0000 (21:08 +0100)]
drm: Rename struct drm_gem_object.vm_obj to filp
Synchronize a bunch of related code with Linux
François Tigeot [Wed, 2 Jan 2019 22:23:36 +0000 (23:23 +0100)]
drm/linux: Add linux/mmu_context.h
Sascha Wildner [Mon, 31 Dec 2018 23:15:51 +0000 (00:15 +0100)]
HAPPY NEW YEAR!
Sascha Wildner [Mon, 31 Dec 2018 19:24:33 +0000 (20:24 +0100)]
Sync zoneinfo database with tzdata2018i from ftp://ftp.iana.org/tz/releases
* Qyzylorda, Kazakhstan moved from +06 to +05 on 2018-12-21.
* New zone Asia/Qostanay because Qostanay, Kazakhstan didn't move.
* Metlakatla, Alaska observes PST this winter only.
* Guess Morocco will continue to adjust clocks around Ramadan.
* Add predictions for Iran from 2038 through 2090.
* São Tomé and Príncipe switches from +01 to +00 on 2019-01-01.
For a detailed list of changes, see share/zoneinfo/NEWS.
Sascha Wildner [Mon, 31 Dec 2018 12:00:43 +0000 (13:00 +0100)]
mkinitrd.sh: Fix comment typo.
Imre Vadász [Fri, 28 Dec 2018 14:50:31 +0000 (15:50 +0100)]
vkernel - Remove unneeded -T flag, that was added in
7b21e5e4a2ba4592a.
* Instead the -e hw.tsc_cputimer_enable=0 flag can be used, to set the
tunable that disables use of the TSC cputimer.
Pointed-out-by: swildner
Sascha Wildner [Fri, 28 Dec 2018 13:34:12 +0000 (14:34 +0100)]
kernel: Remove more duplicate includes.
Sascha Wildner [Fri, 28 Dec 2018 13:27:57 +0000 (14:27 +0100)]
kernel/ic: Remove an unneeded #ifdef _KERNEL and two duplicate includes.
Sascha Wildner [Fri, 28 Dec 2018 12:50:47 +0000 (13:50 +0100)]
Oops, fix lagg's type in LINT64.
Sascha Wildner [Fri, 28 Dec 2018 12:47:24 +0000 (13:47 +0100)]
Add lagg(4) to LINT64.
While here, adjust LINT64's ident and fix lagg's type in VKERNEL64.
Imre Vadász [Fri, 28 Dec 2018 10:50:57 +0000 (11:50 +0100)]
vkernel - Delete unused/ancient timer/rtc function declarations in clock.h.
* Also get rid of tsc_is_broken flag, that is completely unused.
Sascha Wildner [Fri, 28 Dec 2018 10:32:37 +0000 (11:32 +0100)]
bsd-family-tree: Sync with FreeBSD.
Sascha Wildner [Thu, 27 Dec 2018 23:23:14 +0000 (00:23 +0100)]
kernel/acpi: Bring in FreeBSD's r341632.
On specific machines (a Lenovo Ideapad 100-15IBD in this case) would fail
detecting the battery properly after
7bcb6caf98d72e1e5fd653428e604ea1.
See https://lists.freebsd.org/pipermail/svn-src-all/2018-December/173505.html
for further info.
Reported-by: mazocomp on #dragonflybsd.
Taken-from: FreeBSD
Imre Vadász [Thu, 27 Dec 2018 21:41:25 +0000 (22:41 +0100)]
net - Simplify net/altq TSC timer code, get rid of its TSC calibration code.
* There is no use for the custom TSC calibration code in the ALTQ code.
If our bootup TSC calibration would ever fail, we have bigger problems
than being a little bit slower in the ALTQ code.
Sascha Wildner [Thu, 27 Dec 2018 13:05:08 +0000 (14:05 +0100)]
bufcache.9: Fix bread() prototype.
Aaron LI [Thu, 27 Dec 2018 11:26:36 +0000 (19:26 +0800)]
vkernel.7: Fix a typo and bump date
Imre Vadász [Tue, 25 Dec 2018 15:02:38 +0000 (16:02 +0100)]
kernel - Factor out TSC cputimer into common x86_64 code, use for vkernel.
* This adds a command line flag -T to the vkernel, to force disable use of
the TSC cputimer.
* By default the TSC will be used as a cputimer for the vkernel when the
TSC is invariant and mpsync according to the hw.tsc_invariant and
hw.tsc_mpsync sysctl values of the host.
Matthew Dillon [Thu, 27 Dec 2018 03:33:23 +0000 (19:33 -0800)]
kernel - Throw a global lock around udev dictionary ops
* Throw a global lockmgr lock around accesses and adjustments to
dev->si_dict.
* Refactor functions that used to access dev->si_dict directly by
adding two helper functions, udev_get_dict() and udev_put_dict().
* Should fix occassional vn-related panics.
Matthew Dillon [Wed, 26 Dec 2018 06:17:25 +0000 (22:17 -0800)]
iwm - Fix possible null pointer indirection
* Fix possible null pointer indirection. No known cases for dfly but
I would speculate possibly something in the error path could
trigger a NULL field there.
* Provisional change, may be adjusted in the future. But harmless.
Taken-from: haiku
Requested-by: waddlespl
Sascha Wildner [Tue, 25 Dec 2018 10:05:18 +0000 (11:05 +0100)]
efirt.9: Yet another prototype fix.
Sascha Wildner [Sun, 23 Dec 2018 21:37:03 +0000 (22:37 +0100)]
iconvlist.3: Fix prototype in SYNOPSIS.
Sascha Wildner [Sun, 23 Dec 2018 21:25:59 +0000 (22:25 +0100)]
bus_space.9: Fix some protoypes in SYNOPSIS.
Sascha Wildner [Sun, 23 Dec 2018 20:39:46 +0000 (21:39 +0100)]
kernel: Add descriptions to the p1003_1b sysctls.
While here, clean up a bit.
Sascha Wildner [Sun, 23 Dec 2018 20:36:57 +0000 (21:36 +0100)]
kernel: Populate the p1003_1b sysctl tree a bit more.
Sascha Wildner [Sun, 23 Dec 2018 20:09:35 +0000 (21:09 +0100)]
sem_init.3: Mark up SEM_VALUE_MAX.
Sascha Wildner [Sun, 23 Dec 2018 08:13:58 +0000 (09:13 +0100)]
<utmpx.h>: Change struct utmpx's ut_type from uint16_t to short, per POSIX.
See https://pubs.opengroup.org/onlinepubs/
9699919799/basedefs/utmpx.h.html
Our valid ut_types are 0-8 currently, so there should not be any issues.
Also fix a no longer necessary cast in utmp_update.
Sascha Wildner [Sun, 23 Dec 2018 06:35:02 +0000 (07:35 +0100)]
kernel/mrsas: Fix a double assignment.
This code is in an ioctl path that is not used in DragonFly.
Taken-from: FreeBSD
Sascha Wildner [Fri, 21 Dec 2018 20:21:29 +0000 (21:21 +0100)]
rtadvctl(8): Add __printflike and fix warnings.
Sascha Wildner [Fri, 21 Dec 2018 14:18:00 +0000 (15:18 +0100)]
libc/sysvipc: Fix some style issues (no functional change).
Sascha Wildner [Fri, 21 Dec 2018 14:14:14 +0000 (15:14 +0100)]
libc/sysvipc: Mark two functions as printf-like and fix resulting errors.
Justin C. Sherrill [Thu, 20 Dec 2018 04:46:37 +0000 (23:46 -0500)]
Fix broken links.
http://bugs.dragonflybsd.org/issues/3161
Aaron LI [Thu, 13 Dec 2018 05:53:54 +0000 (13:53 +0800)]
rc.d/varsym: Rewrite following rc.d/sysctl
* Rewrite this script following the same logic and style of rc.d/sysctl.
The basic syntax is checked before setting it.
* Clarify the /etc/varsym.conf syntax in the man page.
Reviewed-by: swildner
Aaron LI [Thu, 13 Dec 2018 05:58:27 +0000 (13:58 +0800)]
rc.d/sysctl: Rewrite to be more robust and clean
* Check the validity of the sysctl config and warn about the invalid
syntax.
A common mistake is that users set 'sysctl <mib>=<val>' in
/etc/sysctl.conf, which generate huge amount of junk/mysterious
messages on the console. Now this will be warned.
* Reorganize the logic to be much cleaner.
* Do not bother to check whether the new value is different from the old
one.
* Rename the function for consistency.
Aaron LI [Fri, 14 Dec 2018 14:57:51 +0000 (22:57 +0800)]
rc.d/mountcritlocal: Clean up
Clean the code a bit and fix the style.
Sascha Wildner [Wed, 19 Dec 2018 09:04:36 +0000 (10:04 +0100)]
efirt.9: Fix prototype.
Matthew Dillon [Tue, 18 Dec 2018 16:31:56 +0000 (08:31 -0800)]
hammer2 - Cleanup 'info' command
* hammer2 info validates the partition info, but assumed that
the filesystem would be a disklabel. Add code to validate
against GPT slices too by checking the filesystem uuid.
Reported-by: ftigeot
Matthew Dillon [Mon, 17 Dec 2018 21:46:11 +0000 (13:46 -0800)]
hammer1 - Fix left-over /va/run/hammer.cleanup files
* Fix an incorrect API call by hammer1 to the pidfile_*() functions
in libutil. This caused hammer1 to leave its lock files sitting in
/var/run due to a use-after-free that reared its ugly head after
the version update.
Reported-by: JustinS
Sascha Wildner [Sun, 16 Dec 2018 23:15:54 +0000 (00:15 +0100)]
efirt.9: Add missing header to the SYNOPSIS.
Sascha Wildner [Sun, 16 Dec 2018 21:33:09 +0000 (22:33 +0100)]
Update the pciconf(8) database.
December 11, 2018 snapshot from https://pci-ids.ucw.cz
Sascha Wildner [Sun, 16 Dec 2018 21:29:41 +0000 (22:29 +0100)]
efirt.9: Use .Er for error return values.
Matthew Dillon [Sun, 16 Dec 2018 21:26:06 +0000 (13:26 -0800)]
atkbdc - Change default to still attach PS2 controller even if FADT says don't
* Temporary workaround, disable commit
131acb0380e93664 by default.
It can be enabled again with a tunable in /boot/loader.conf:
hw.acpi.fadt_8042_nolegacy=1
* Should work around several bug reports of the keyboard not working
in 5.4.
Sascha Wildner [Fri, 14 Dec 2018 23:56:19 +0000 (00:56 +0100)]
Add efidev.4 and efirt.9 manual pages from FreeBSD.
Sascha Wildner [Fri, 14 Dec 2018 23:04:38 +0000 (00:04 +0100)]
Sync ACPICA with Intel's version
20181213.
* Fix buffer length issues with the GenericSerialStatus.
* New object evaluation trace mechanism for control methods and data
objects (ACPI_LV_EVALUATION).
* _OSI strings sync.
* New options in iasl (-ww) and acpiexec (-eo).
* Various smaller fixes and additions.
For detailed list, please see sys/contrib/dev/acpica/changes.txt.
Sascha Wildner [Fri, 14 Dec 2018 21:34:59 +0000 (22:34 +0100)]
kernel/acpi: Fix the ACPI_LV_VERBOSITY1 level's value.
Aaron LI [Fri, 14 Dec 2018 14:08:26 +0000 (22:08 +0800)]
rc: Let dhcpcd(8) go to background immediately by default
Set the default value of "dhcpcd_flags" to be "-b", thus don't let
dhcpcd(8) block the boot, especially when there is no wireless
connection, with the default settings.
Aaron LI [Wed, 12 Dec 2018 04:06:17 +0000 (12:06 +0800)]
network.subr: Workaround race between wpa_supplicant and dhcpcd
Insert a 1-second delay after starting wpa_supplicant(8) to workaround
the race between it and dhcpcd(8), which can modify the interface's
state and break wpa_supplicant's ongoing SSID scan.
dhclient(8) doesn't have such an issue with wpa_supplicant.
Tested-by: me, Daniel Bilik <ddb@neosystem.org>
Aaron LI [Wed, 12 Dec 2018 14:53:00 +0000 (22:53 +0800)]
Allow optional "inet6" keyword in ipv6_ifconfig_<ifname>
Aaron LI [Wed, 12 Dec 2018 03:52:24 +0000 (11:52 +0800)]
rc.d/netif: Rework wlan interface configuration
* wlan interfaces are more similar to clonable interfaces rather than
vlan interfaces, so move the relevant code from childif_create() to
network.subr as wlan_up(), which will be called to create the wlan
interfaces before setting up them.
Now, list_net_interfaces() shouldn't list "net.wlan.devices".
* Add the wlan_down() function in network.subr to destroy the wlan
devices.
* Meanwhile, fix childif_destroy() to properly destroy the vlan
interfaces created by childif_create(). Also tweak the order of this
function in netif_stop().
* The 2-second delay in netif_start() doesn't apply anymore, since the
DHCP and WPA configurations are now handled in ifconfig_up() called by
ifn_start().
This patch is loosely based on FreeBSD's code. Thanks to them.
Aaron LI [Wed, 12 Dec 2018 03:29:10 +0000 (11:29 +0800)]
network.subr: Properly bring up/down interfaces
Now that the interface will be properly brought up in ifconfig_up(),
clean up the rc.d/wpa_supplicant script.
Aaron LI [Wed, 12 Dec 2018 03:16:05 +0000 (11:16 +0800)]
network.subr: Add IPv6 support to ifalias_{up,down}()
* Factor out the common parts of ifalias_{up,down}() to be
ifalias_common().
* Add IPv6 support to ifalias_common().
* Use ifalias_up() in network6_interface_setup().
Aaron LI [Tue, 11 Dec 2018 13:27:43 +0000 (21:27 +0800)]
rc.d/netif: Rename network_* to netif_* for consistency
Rename network_* subroutines to netif_* for better consistency. Also
set the rcvar and add netif_enable=YES to rc.conf.
Taken-from: FreeBSD (r272959, r278506)
Aaron LI [Tue, 11 Dec 2018 13:16:25 +0000 (21:16 +0800)]
network.subr: Clean up list_net_interfaces()
The rc.d/netif takes care of DHCP/non-DHCP interfaces appropriately, and
thus the interface type filter feature in list_net_interfaces() is no
longer needed since long ago.
Aaron LI [Tue, 11 Dec 2018 06:05:20 +0000 (14:05 +0800)]
network.subr: Cleanups and minor improvements
* Localize variables in all functions.
* Better name several variables (e.g., $i -> $_if).
* Simplify several test and case usages.
* Use the newly added "-n" option for ifconfig(8) in ifexists().
* Improve comments, debug messages, and styles.
* Print a message when calling rtsol(8) to auto configure an interface,
since it may take several seconds.
Aaron LI [Sun, 9 Dec 2018 02:55:55 +0000 (10:55 +0800)]
rc: Use SYSCTL{,_N,_W} variables
With minor cleanups to IO redirections.
Sascha Wildner [Tue, 11 Dec 2018 19:58:57 +0000 (20:58 +0100)]
kernel: Remove the FFS_ROOT option. It was a no-op since 4.9.
Matthew Dillon [Tue, 11 Dec 2018 17:26:19 +0000 (09:26 -0800)]
hammer2 - stabilization, fix delete-on-reclaim (2)
* Fix double-delete. When an inode is finally deleted, the
HAMMER2_INODE_ISUNLINKED flag must be cleared to avoid a
double delete later in reclaim.
François Tigeot [Tue, 11 Dec 2018 06:56:18 +0000 (07:56 +0100)]
drm: Add missing file uapi/linux/pci.h
Matthew Dillon [Mon, 10 Dec 2018 23:35:31 +0000 (15:35 -0800)]
hammer2 - stabilization, fix delete-on-reclaim
* Fix the delete-on-reclaim code which had been commented out
temporarily during the prior work. Restore and cleanup the
code.
This code handles deleting inodes for files which were unlinked
(nlinks count -> 0) but still had open descriptors.
* Fixes inode leak in df output and on the media.
François Tigeot [Mon, 10 Dec 2018 22:06:11 +0000 (23:06 +0100)]
drm: Add the DRM_IOCTL_GET_PCIINFO ioctl
* It provides an easy way to get PCI device information from
a /dev file descriptor
* The main user will be mesa/libdrm
Obtained-from: OpenBSD
Sascha Wildner [Sun, 9 Dec 2018 11:53:33 +0000 (12:53 +0100)]
kernel/netinet6: Fix the kernel build without "options INET6".
Sascha Wildner [Sun, 9 Dec 2018 11:34:57 +0000 (12:34 +0100)]
kernel/gif: Include just opt_inet6.h which is all this header needs.
Sascha Wildner [Sun, 9 Dec 2018 10:16:35 +0000 (11:16 +0100)]
kernel: Remove some useless #ifdefs.
Matthew Dillon [Sun, 9 Dec 2018 04:58:18 +0000 (20:58 -0800)]
HAMMER2 - Update DESIGN document
* Bring the design document up-to-snuff.
Matthew Dillon [Sat, 8 Dec 2018 22:34:51 +0000 (14:34 -0800)]
kernel - Fix rare vref() assertion
* The VREF_TERMINATE flag gets cleared when a vnode is reactivated.
However, concurrent LK_SHARED locks on vnodes can race the v_state
test. Thus the code cannot assume that VREF_TERMINATE has been cleared
when v_state is VS_ACTIVE.
To avoid the race, we simply unconditionally clear VREF_TERMINATE on
a successful vget().
* Could be reproduced by running blogbench and synth together, both of
which generate extreme filesystem-intensive loads.
François Tigeot [Sat, 8 Dec 2018 14:41:24 +0000 (15:41 +0100)]
byteorder(3): Remove a VAX comment
Aaron LI [Tue, 27 Nov 2018 04:05:58 +0000 (12:05 +0800)]
ifconfig(8): Add option -n to disable auto module loading
This option may be used by rc scripts to disable the auto loading of
network modules when try to configure/stop a non-existent interface.
e.g., `ifconfig tap0` will auto load `if_tap.ko` when `tap0` doesn't
exist yet.
Taken-from: FreeBSD (r169873)
Sascha Wildner [Sat, 8 Dec 2018 09:39:12 +0000 (10:39 +0100)]
kernel: Use NULL for pointers in DRIVER_MODULE().
Matthew Dillon [Sat, 8 Dec 2018 04:26:15 +0000 (20:26 -0800)]
hammer2 - stabilization, fix hammer2_inode_get()
* Fix a lock order reversal in hammer2_inode_get() which can be
triggered under heavy loads.
Matthew Dillon [Sat, 8 Dec 2018 02:06:36 +0000 (18:06 -0800)]
hammer2 - Cleanup
* Cleanup a few wrappers, remove struct buf related temporary
debug code.
* Add some lock assertions.
* Unlimit M_HAMMER2 (for use with HAMMER2_IO_DEBUG)
Matthew Dillon [Sat, 8 Dec 2018 02:05:16 +0000 (18:05 -0800)]
hammer2 - Add HAMMER2_IO_DEBUG
* Add HAMMER2_IO_DEBUG (default disabled). This tracks callers
that use hammer2_io's. This eats a huge amount of (up to ~20GB)
of kernel memory.
Matthew Dillon [Fri, 7 Dec 2018 02:50:07 +0000 (18:50 -0800)]
kernel - Improve umount operation
* Move the cache_inval(), and both cache_unmounting() and
cache_clearmntcache() into the retry loop. This ensures that
the nc_refs test actually has a chance to update during the retry.
This should significantly improve umount operation, reducing umount
races against exiting processes still using the filesystem.
* Only issue the allproc scan which matches and clears proc->p_textnch
on a forced umount. Otherwise disallow the umount attempt. We
may have to reallow this later, but the shutdown code now properly
clears p_textnch so it should take care of the case for us (which
is why this code was originally present).
* Properly dispose of p->p_textnch during shutdown/halt/reboot for
the calling process, proc0, and init. This is an attempt to allow
the system to cleanly unmount root.
* Cleanup the warning and error messages to clarify umount failures.
* Only reinstasll the syncer vp on error if umount deinstalled it.
* Add some debugging sysctls (default disabled).
Reported-by: marino
Matthew Dillon [Thu, 6 Dec 2018 06:42:31 +0000 (22:42 -0800)]
hammer2 - stabilization
* Adjust the chain lock a bit to bump lockcnt prior to acquiring
a non-blocking shared lock, instead of afterwords, which cleans
up a live-loop case in the chain unlock code.
* Cleanup misc debugging. Add some inode debugging code (default
disabled).
* Add some crash-dump (or live) debug utilities for tracking down
chains, dio's, and inodes. kgdb's macros are too slow for iterating
a million chains.
Matthew Dillon [Wed, 5 Dec 2018 18:19:31 +0000 (10:19 -0800)]
hammer2 - refactor filesystem sync 7/N
* Increase default caps for dirty chain and dirty inode counts. The
new SYNCQ semantics allow this number to be arbitrarily large, but
it is still a good idea not to allow it to get out of control.
NOTE: One advantage of higher caps is that it gives the frontend more
time to delete temporary files.
* Get rid of the old syncer speedup / write moderation mechanisms.
Replace with a new VFS_MODIFYING() hook that allows the filesystem
to implement moderation prior to any vnode locks being held.
Remove hammer2_pfs_memory_wait() calls from VOP bodies, implement
the hammer2_pfs_memory_wait() call via VFS_MODIFYING() instead.
* Move the moderation wakeup for the inode count to the syncer, and
change the parameter to use pmp->sideq_count.
Matthew Dillon [Wed, 5 Dec 2018 05:49:35 +0000 (21:49 -0800)]
kernel - Add trigger_syncer(), VFS_MODIFYING()
* Add trigger_syncer(). This function asynchronously triggers the
syncer vnode in the syncer thread for the mount. It is a NOP if
there is no syncer thread or syncer vnode.
Will be used by HAMMER2 to pipeline syncs when heavy filesystem
activity over-extends internal memory structures.
* Add VFS_MODIFYING(). This is a hook into the filesystem that
modifying filesystem ops in the kernel will call prior to locking
any vnodes. It allows the filesystem to moderate the over-allocation
of internal structures. Waiting until after the VOP is called is too
late, so we need kernel support for this. Numerous attempts to hack
moderation code into the H2 VOPs have all failed spectacularly.
In H2, over-allocation can occur because H2 must retain disconnected
inodes related to file creation and deletion until the next sync cycle.
Matthew Dillon [Sun, 2 Dec 2018 20:39:48 +0000 (12:39 -0800)]
hammer2 - refactor filesystem sync 6/N
* Dependency tracking. Add modest cross-dependency grouping. This code
does not track dependencies in a graph. Instead, it simply groups
dependent inodes together. This means that dependency groups can get
rather large when, for example, lots of files are being created or
deleted in the same directory.
* We retain the excellent dynamic inode reordering code for the syncq.
When the frontend blocks on an inode that is in the syncq, the inode
will be reordered to the front of the queue to reduce the frontend
stall time as much as possible.
* Remove the COPYQ transaction flag and related sequencing.
* Fix flush sequencing for pmp->iroot. We must flush iroot's chains with
HAMMER2_XOP_FSSYNC last. When iroot is dirty, the out-of-order flush
of iroot that occurs before the final stage must be run without FSSYNC
set, otherwise iroot's pmp->pfs_iroot_blocksets[] will not be consistent
because the remaining inodes in the syncq haven't been flushed yet.
* Fix a broken syncer speedup conditional.
Matthew Dillon [Sat, 1 Dec 2018 21:57:35 +0000 (13:57 -0800)]
hammer2 - refactor filesystem sync 5/N
* Dependency ops need one atomic wrapper. Adjust the use of
pmp->list_spin for the atomic wrapper.
* Reorder hammer2_inode_depend() call from after hammer2_igetv()
to before it. This is because hammer2_igetv() can temporarily
release the inode lock and the dependency code assumes that does
not happen.
* Cleanup
* This code is still not 100% because earlier dependency pairs
that wind up on the sideq can be split if an overlapping dependency
occurs later that flags PASS2.
Matthew Dillon [Fri, 16 Nov 2018 06:32:56 +0000 (22:32 -0800)]
hammer2 - Add 'snapshot-debug' directive
* Add the 'snapshot-debug' directive which takes a snapshot without
first sync'ing the filesystem. The idea is that the snapshot will
be taken relative to the most recent filesystem sync (automatic or
manual), and should still represent a fully consistent filesystem.
Matthew Dillon [Tue, 13 Nov 2018 21:32:33 +0000 (13:32 -0800)]
hammer2 - refactor filesystem sync 4/N
* Save synchronized iroot blockmaps for snapshot code, and use them
in the snapshot code.
* Improve dependency handling and syncq/sideq flagging for
dependencies. Also improve the hammer2_inode_t reordering
code that allows the frontend to continue operating on dirty
inodes simultaneous with a filesystem sync.
* Move inode deletion into the filesystem sync code (in addition to
creation), for the same reason.
* Fix lost ref counts in the snapshot code which were causing umount
panics.
* Stabilization pass on volume flush code. Since flushes stop at
inode boundaries, we must properly flush the superroot before
flushing the volume header. That is, the flush sequence is:
- flush inodes for PFS (flushes inode content)
- flush PFS root inode (flushes through to inodes)
- flush superroot inode (flushes through to PFS root)
- flush volume header (flushes voulume header to superroot)
Theoretically this allows the filesystem asynchronously write data
and inodes flushed by the kernel's buffer cache and vnode code
concurrent with a filesystem flush without messing up filesystem
consistency, because these asynchronously flushed inodes are not
included (or have already been flushed) in the filesystem flush that
is already underway.
* Filesystem consistency still not perfect (using snapshot-debug
directive to test during heavy filesystem modification loads,
directory entries are sometimes desynchronized from their inodes).
Matthew Dillon [Sat, 10 Nov 2018 02:05:14 +0000 (18:05 -0800)]
hammer2 - refactor filesystem sync 3/N
* Attempt to guarantee filesystem consistency at all sync points.
* Pretty severely hacked, and at the moment this can result in
syncs which never end if the filesystem is busy.
Matthew Dillon [Fri, 9 Nov 2018 01:10:07 +0000 (17:10 -0800)]
hammer2 - refactor filesystem sync 2/N
* Flesh out the flush partitioning code, fixing a number of issues.
* Refactor hammer2_inode_lock() and add hammer2_inode_lock4() to
interlock against flushes. This is handled by blocking inode locks
against SYNCQ, and reordering the inode to the front of the SYNCQ list
in order to unblock as quickly as possible as the filesystem sync
progresses. The result should be relatively few frontend stalls
during a filesystem sync.
* Disable resource caps for the moment, because synchronous
operations to prevent resource limits from blowing out break
the current inode_lock*() code and allow vnode deadlocks to
occur.
* To avoid deadlocks, the filesystem sync currently must clear SYNCQ
before locking the inode & vnode, and if it cannot lock a vnode it
must continue on with the next inode and then restart. Retried
vnodes introduce a short delay to give the frontend time to work
the blocking operation.
This is necessary because the kernel locks vnodes before entering the
H2 frontend, and we cannot safely unlock/relock them to work around
this. Nor do we necessarily even have full knowledge on which vnodes
the current thread has locked.
* Does not yet guarantee complete filesystem consistency on-crash.
Matthew Dillon [Mon, 5 Nov 2018 01:31:07 +0000 (17:31 -0800)]
hammer2 - refactor filesystem sync 1/N
* Change H2 to allow concurrent filesystem sync and modifying
frontend operations.
* FLUSH transactions no longer block modifying frontend
transactions.
* Change filesystem sync operation to put all modified
inodes on the pmp->syncq (which is also combined with
any inodes on pmp->sideq), and then iterating the
syncq to flush each inode.
After this is done, stage 2 will flush the meta-data tree
leading to each inode.
This code will also handle delayed inode creation and
destruction ops, which require modifications to the meta-data
tree governing the inodes themselves (so we don't want the
frontend to do it and interfere with the flush).
* Modifying operations against inodes already queued for a
filesystem sync that is in progress will now reorder the
inode to the front of the filesystem sync in progress and
wait for the sync on that inode to complete before proceeding.
This is handled by blocking in the exclusive inode lock code.
* hammer2_inode_get() does not need to pass 'dip' any more
because regular inodes are inserted under the iroot (PFS root
inode) and no longer inserted hierarchically.
* Separate out hammer2_inode_create() into hammer2_inode_create_pfs()
and hammer2_inode_create_normal(). These two forms are now distinct
enough that the code is a mess if we try to leave them combined.
François Tigeot [Tue, 4 Dec 2018 21:54:39 +0000 (22:54 +0100)]
drm/i915: Add Kaby Lake and Amber Lake PCI IDs
Obtained-from: Linux 4.19
François Tigeot [Tue, 4 Dec 2018 21:27:20 +0000 (22:27 +0100)]
drm/i915: Add Whiskey Lake PCI IDs
Obtained-from: Linux 4.19
François Tigeot [Tue, 4 Dec 2018 20:57:46 +0000 (21:57 +0100)]
drm/i915: Add more Coffeelake PCI IDs
Obtained-from: Linux 4.19
François Tigeot [Sat, 24 Nov 2018 13:12:34 +0000 (14:12 +0100)]
Revert "drm/ttm: Remove ttm_bo_unreserve_core()"
This reverts commit
5d4803440754b62fed1abd6d641d1f7a6f7b454e.
The drm/radeon driver has a tendency to lock up more frequently
without ttm_bo_unreserve_core().
Reported-by: Michael Neumann <mneumann@ntecs.de>
Sascha Wildner [Sun, 2 Dec 2018 12:32:35 +0000 (13:32 +0100)]
usb.4: Clean up a bit.
Sascha Wildner [Sun, 2 Dec 2018 03:24:54 +0000 (04:24 +0100)]
hier.7: Use .Xr
Sascha Wildner [Sun, 2 Dec 2018 03:06:25 +0000 (04:06 +0100)]
hier.7: Document some recently added directories.
Sascha Wildner [Sun, 2 Dec 2018 02:13:39 +0000 (03:13 +0100)]
Remove an unused include file.
Sascha Wildner [Sat, 1 Dec 2018 20:15:32 +0000 (21:15 +0100)]
libc/locale: Mark up defined values better in the manual pages.
Sascha Wildner [Fri, 30 Nov 2018 20:13:02 +0000 (21:13 +0100)]
Install input{,-event-types}.h to /usr/include/compat/linux too.
It helps preventing excessive patches in ravenport's weston.
It is kind of experimental, but depending on how useful it
proves to be for 3rd party software all in all, we will
eventually remove /usr/include/dev/misc/evdev in the future.
A -I /usr/include/compat is needed to get at these headers using
"#include <linux/input.h>", etc. They were not put in the default
include path to mislead configure scripts and the likes.
We will also evaluate if it is worth exposing further linux
specific headers in this directory.
It might even be that we change the new location again in the
future.
Requested-by: Peeter Must