CVS commit: src/sys

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Fri Oct 13 18:48:56 UTC 2023

Modified Files:
        src/sys/kern: kern_condvar.c kern_sleepq.c
        src/sys/rump/librump/rumpkern: locks.c locks_up.c
        src/sys/sys: condvar.h lwp.h

Log Message:
Add cv_fdrestart() (better name suggestions welcome):

Like cv_broadcast(), but make any LWPs that share the same file descriptor
table as the caller return ERESTART when resuming.  Used to dislodge LWPs
waiting for I/O that prevent a file descriptor from being closed, without
upsetting access to the file (not descriptor) made from another direction.


To generate a diff of this commit:
cvs rdiff -u -r1.59 -r1.60 src/sys/kern/kern_condvar.c
cvs rdiff -u -r1.83 -r1.84 src/sys/kern/kern_sleepq.c
cvs rdiff -u -r1.86 -r1.87 src/sys/rump/librump/rumpkern/locks.c
cvs rdiff -u -r1.12 -r1.13 src/sys/rump/librump/rumpkern/locks_up.c
cvs rdiff -u -r1.17 -r1.18 src/sys/sys/condvar.h
cvs rdiff -u -r1.227 -r1.228 src/sys/sys/lwp.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.