Module Name: src Committed By: jdolecek Date: Sun May 2 19:13:43 UTC 2021
Modified Files: src/sys/kern: kern_event.c src/sys/sys: eventvar.h Log Message: implement fo_restart hook for kqueue descriptors, so that close(2) on the descriptor won't block indefinitely if other thread is currently blocked on the same kqueue in kevent(2) done similarily to pipes and sockets, i.e. using flag on the potentially shared kqueue structure hooked off file_t - this is somewhat suboptimal if the application dup(2)ped the descriptor, but this should be rare enough to not really matter usually this causes the kevent(2) to end up returning EBADF since on the syscall restart the descriptor is not there anymore; if dup(2)ped the kevent(2) call can continue successfully if the closed kqueue descriptor was other than the one used for the kevent(2) call PR kern/46248 by Julian Fagir To generate a diff of this commit: cvs rdiff -u -r1.117 -r1.118 src/sys/kern/kern_event.c cvs rdiff -u -r1.8 -r1.9 src/sys/sys/eventvar.h Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.