v2 of https://listman.redhat.com/archives/libvir-list/2022-January/msg00008.html The v2 series introduces the new approach following the previous review comments. It adds a function for pidfile lock validation (i.e. if its locked by the expected process) and adds the new check to virPidFileReadPathIfAlive. The daemonization and pidfile handling for swtpm command are now handled by libvirt. The fix to qemu_vhost_user_gpu is currently done by visual code checking. Not really sure how to test e2e as I dont have a quick reproducer atm :( Note: I wasn't sure about the refactoring of virPidFileReadPathIfAlive (i.e. whether to remove the binary path from there). For now decided to introduce the new lock check only if the path is not provided. But I am open for suggestions on how to better fit the new check. Vasiliy Ulyanov (4): virfile: Add virFileGetLockOwner function virpidfile: Refactor virPidFileReadPathIfAlive qemu_tpm: Get swtpm pid without binary validation qemu: gpu: Get pid without binary validation src/libvirt_private.syms | 1 + src/qemu/qemu_tpm.c | 26 +++++++++----------- src/qemu/qemu_vhost_user_gpu.c | 9 +++---- src/util/virfile.c | 45 ++++++++++++++++++++++++++++++++++ src/util/virfile.h | 2 ++ src/util/virpidfile.c | 20 +++++++++++++++ 6 files changed, 82 insertions(+), 21 deletions(-) -- 2.34.1
