* Combine dg_fd_locks and dg_cv into one array.
* Similarly for vc_fd_locks and vc_cv
* Turn some macros into inline functions
This is a mostly cosmetic change to make refactoring these strutures in
a future commit easier.
Sponsored by: Axcient
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D42597
(cherry picked from commit a5c2f4e939)
lib/libc/rpc: switch the per-fd structs in clnt_{dg,vc}.c to RB Trees
This saves oodles of memory, especially when "ulimit -n" is large. It
also prevents a buffer overflow if getrlimit should fail.
Also replace per-fd condvars with mutexes to simplify the code.
PR: 274968
Sponsored by: Axcient
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D42597
(cherry picked from commit 24938f9311)
60314995ef