Module Name: src
Committed By: riastradh
Date: Sat Sep 24 11:06:03 UTC 2022
Modified Files:
src/sys/dev: efi.c
Log Message:
efi(4): Fix access to efi_isopen.
- Qualify efi_isopen with volatile.
- Ensure open has acquire ordering and close has release ordering.
- Use atomic_swap, not atomic_cas -- simpler and may be cheaper.
- Use atomic_store, not atomic_swap -- simpler and usually cheaper.
(Could maybe just use __cpu_simple_lock to avoid having to write out
these details.)
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/sys/dev/efi.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
