8170a7d4 melifaro Feb. 12, 2021, 7:45 p.m. 
The case of adding interface route by specifying interface
 address as the gateway was missed during code refactoring.
Re-add it back by copying non-AF_LINK gateway data when RTF_GATEWAY
 is not set.

Reviewed by:	donner
MFC after:	3 days
cgit
12538351 kevans Feb. 12, 2021, 7:36 p.m. 
unsz was always exactly '1' here due to an unfortunate mispositioning
of closing parenthesis. While it's generally irrelevant because bind(2)
is passed the (accurate) sep->se_ctrladdr_size instead, it's not very
helpful for anything locally that wants to use it rather than assuming
that sep->se_ctrladdr_size perfectly fits the end of sun_path.

Just drop unsz entirely and use the result of SUN_LEN() for it.

MFC-after:	3 days
cgit
f540cb27 asomers Feb. 12, 2021, 6:30 p.m. 
The "source" variable was introduced in r26072, probably as the
traditional counterpart to "target".  But the "source"/"target" names
suggest the opposite of their actual meaning.  With ln, for example, the
source is the real file and the target is the newly created link.  In
mount_nullfs the meaning is the opposite: the target is the existing
file system and the source is the newly created mountpoint.  Better to
use "target"/"mountpoint" terminology, which matches the man page.

MFC after:	6 weeks
Sponsored by:	Axcient
cgit
a62dc346 emaste Feb. 12, 2021, 3:11 p.m. 
This was introduced in 8998619212f3a, and left behind when the hpn-ssh
patches were removed in 60c59fad8806.  Although Being able to log
SO_RCVBUF in debug mode might have some small value on its own, it's
not worth carrying an extra diff against upstream.

Reviewed by:	kevans
MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D28610
cgit
a78fee81 rscheff Feb. 12, 2021, 11:33 a.m. 
Summary:
Documenting the newly added, and enabled by default,
Proportional Rate Reduction algorithm's governing sysctls.

MFC: 3 days

Reviewed By: kbowling, rgrimes

Differential Revision: https://reviews.freebsd.org/D28568
cgit
8563de2f mckusick Feb. 12, 2021, 5:31 a.m. 
The panic reported in 253158 arises because the /mnt/.snap/.factory
snapshot allocated the last block in the filesystem. The snapshot
code allocates the last block in the filesystem as a way of setting
its length to be the size of the filesystem. Part of taking a
snapshot is to remove all the earlier snapshots from the image of
the newest snapshot so that newer snapshots will not claim the blocks
of the earlier snapshots. The panic occurs when the new snapshot
finds that both it and an earlier snapshot claim the same block.

The fix is to set the size of the snapshot to be one block after
the last block in the filesystem. This block can never be allocated
since it is not a valid block in the filesystem. This extra block
is used as a place to store the initial list of blocks that the
snapshot has already copied and is used to avoid a deadlock in and
speed up the ffs_copyonwrite() function.

Reported by:  Harald Schmalzbauer
Tested by:    Peter Holm
PR:           253158
Sponsored by: Netflix
cgit
9e14b918 emaste Feb. 12, 2021, 3:22 a.m. 
This was introduced in 03f6c5cd93ec, which added use of
sysctl net.inet.ip.portrange.reservedhigh instead of IPPORT_RESERVED,
but it appears the rest of that change was lost in some subsequent
update.

The change should probably be restored, but until then there is no
reason to leave an unused variable around.

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
cgit
154adbbe emaste Feb. 12, 2021, 2:37 a.m. 
These appear to be leftovers from ca86bcf2531c7 and f7167e0ea0bf5

MFC after:	3 days
Sponsored by:	The FreeBSD Foundation
cgit
adf28ab4 kib Feb. 12, 2021, 1:02 a.m. 
In particular, replace a note that reload through vget() is obsoleted,
with explanation why this code is required.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
26af9f72 kib Feb. 12, 2021, 1:02 a.m. 
This catches both missed processing of IN_ENDOFF and missed application
of VOP_VPUT_PAIR() after VOP that created an entry in the directory.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
28703d27 kib Feb. 12, 2021, 1:02 a.m. 
Such vnodes prevent inode reuse, and should be force-cleared when ffs_valloc()
is unable to find a free inode.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
2011b44f kib Feb. 12, 2021, 1:02 a.m. 
if we noted a parallel request is active and declined to overflow the
system with parallel redundant sync of the vnodes.  But we need to wait
for the flush to finish to see if there are any freed resources.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
013168db kib Feb. 12, 2021, 1:02 a.m. 
VFS should retry inactivation when possible, then. This should provide
timely removal of unlinked unreferenced inodes.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
b59a8e63 kib Feb. 12, 2021, 1:02 a.m. 
When possible, relock the vnode and retry inactivation.  Only vunref() is
required not to drop the vnode lock, so handle it specially by not retrying.

This is a part of the efforts to ensure that unlinked not referenced vnode
does not prevent inode from reusing.

Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
cgit
6aed2435 kib Feb. 12, 2021, 1:02 a.m. 
because softdep_prelink() is reverted to NOP for non-J case.  There is no
need to do anything before ufs_direnter() in SU/non-J case, everything
required to sync the directory is done in VOP_VPUT_PAIR().

Suggested by:	mckusick
Reviewed by:	chs, mckusick
Tested by:	pho
MFC after:	2 week
Sponsored by:	The FreeBSD Foundation
cgit