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8 Commits

Author SHA1 Message Date
Hans Petter Selasky
eabddb25a3 Factor out TCP rateset destruction code. 
Ensure the epoch_call() function is not called more than one time
before the callback has been executed, by always checking the
RS_FUNERAL_SCHD flag before invoking epoch_call().

The "rs_number_dead" is balanced again after r353353.

Discussed with:	rrs@
Sponsored by:	Mellanox Technologies
 2019-10-09 17:08:40 +00:00
Hans Petter Selasky
24be13533b Fix locking order reversal in the TCP ratelimit code by moving 
destructors outside the rsmtx mutex.

Witness message:
lock order reversal: (sleepable after non-sleepable)
   1st tcp_rs_mtx (rsmtx) @ sys/netinet/tcp_ratelimit.c:242
   2nd sysctl lock (sysctl lock) @ sys/kern/kern_sysctl.c:607

Backtrace:
witness_debugger
witness_checkorder
_rm_wlock_debug
sysctl_ctx_free
rs_destroy
epoch_call_task
gtaskqueue_run_locked
gtaskqueue_thread_loop

Discussed with:	rrs@
Sponsored by:	Mellanox Technologies
 2019-10-09 16:48:48 +00:00
Randall Stewart
6f32ca1936 With the recent commit of ktls, we no longer have a 
sb_tls_flags, its just the sb_flags. Also the ratelimit
code, now that the defintion is in sockbuf.h, does not
need the ktls.h file (or its predecessor).

Sponsored by:	Netflix Inc
 2019-09-11 15:41:36 +00:00
Michael Tuexen
15ddc5e43f Don't hold the rs_mtx lock while calling malloc(). 
Reviewed by:		rrs@
Sponsored by:		Netflix, Inc.
Differential Revision:	https://reviews.freebsd.org/D21416
 2019-08-26 16:23:47 +00:00
Xin LI
903c4ee6ec Fix !INET build. 2019-08-02 22:43:09 +00:00
Randall Stewart
99c311c4d1 Fix one more atomic for i86 
Obtained from:	mtuexen@freebsd.org
 2019-08-02 11:17:07 +00:00
Randall Stewart
a1589eb835 Opps use fetchadd_u64 not long to keep old 32 bit platforms 
happy.
 2019-08-01 20:26:27 +00:00
Randall Stewart
20abea6663 This adds the third step in getting BBR into the tree. BBR and 
an updated rack depend on having access to the new
ratelimit api in this commit.

Sponsored by:	Netflix Inc.
Differential Revision:	https://reviews.freebsd.org/D20953
 2019-08-01 14:17:31 +00:00