From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- drivers/s390/block/Kconfig | 73 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 drivers/s390/block/Kconfig (limited to 'drivers/s390/block/Kconfig') diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig new file mode 100644 index 000000000..877a9bc7f --- /dev/null +++ b/drivers/s390/block/Kconfig @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: GPL-2.0 +comment "S/390 block device drivers" + depends on S390 && BLOCK + +config DCSSBLK + def_tristate m + prompt "DCSSBLK support" + depends on S390 && BLOCK && ZONE_DEVICE + select FS_DAX + help + Support for dcss block device + +config DASD + def_tristate y + prompt "Support for DASD devices" + depends on CCW && BLOCK + help + Enable this option if you want to access DASDs directly utilizing + S/390s channel subsystem commands. This is necessary for running + natively on a single image or an LPAR. + +config DASD_PROFILE + def_bool y + prompt "Profiling support for dasd devices" + depends on DASD + help + Enable this option if you want to see profiling information + in /proc/dasd/statistics. + +config DASD_ECKD + def_tristate y + prompt "Support for ECKD Disks" + depends on DASD + help + ECKD devices are the most commonly used devices. You should enable + this option unless you are very sure to have no ECKD device. + +config DASD_FBA + def_tristate y + prompt "Support for FBA Disks" + depends on DASD + help + Select this option to be able to access FBA devices. It is safe to + say "Y". + +config DASD_DIAG + def_tristate y + prompt "Support for DIAG access to Disks" + depends on DASD + help + Select this option if you want to use Diagnose250 command to access + Disks under VM. If you are not running under VM or unsure what it is, + say "N". + +config DASD_EER + def_bool y + prompt "Extended error reporting (EER)" + depends on DASD + help + This driver provides a character device interface to the + DASD extended error reporting. This is only needed if you want to + use applications written for the EER facility. + +config SCM_BLOCK + def_tristate m + prompt "Support for Storage Class Memory" + depends on S390 && BLOCK && EADM_SCH && SCM_BUS + help + Block device driver for Storage Class Memory (SCM). This driver + provides a block device interface for each available SCM increment. + + To compile this driver as a module, choose M here: the + module will be called scm_block. -- cgit v1.3.1