OpenBSD cvs log

date	2019-07-13T06:51:59Z
author	semarie
files	src/sys/kern/sys_pipe.c	log	diff	annotate
message	pipe_write() do opportunistic buffer resizing, when the buffer is empty. but there is a possible sleeping point between the check (cnt == 0) and the resize (pipespace() call), resulting resizing on possibly not empty buffer. fix it by rechecking the buffer usage once the exclusive lock is hold. it should be revisited later as part of larger work on pipe(2). ok visa@ anton@

date	2019-07-13T21:16:17Z
author	drahn
files	src/sys/arch/arm64/arm64/pmap.c	log	diff	annotate
message	pmap_page_protect() should not unmap pages after making them readonly. ok kettenis@ patrick@

date	2019-07-13T21:31:59Z
author	drahn
files	src/sys/arch/arm64/arm64/pmap.c	log	diff	annotate
message	Adjust the pmap_set_l* functions to a more reasonable API, the lX_pa parameter was never called with a known physical address, the called function always needed to look up that data. When this was originally written, it was expected to be used in another path where the virtual and physical were both known, but that other path was rewritten at some point (likely that old path was early kernel table init, before pmap_extract is available). Instead of making the function perform a table walk pass the pmapvpX pointer to the table that the new entry will be inserted. This table is already known and in a local register, so no point in performing that lookup again. ok kettenis@

date	2019-07-13T21:47:06Z
author	drahn
files	src/sys/arch/arm64/arm64/pmap.c	log	diff	annotate
message	Panic for missing vp1 entry, do not panic for missing vp2 entry twice. Fix print on subsequent line.