From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- block/Kconfig.iosched | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 block/Kconfig.iosched (limited to 'block/Kconfig.iosched') diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched new file mode 100644 index 000000000..27f11320b --- /dev/null +++ b/block/Kconfig.iosched @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: GPL-2.0 +menu "IO Schedulers" + +config MQ_IOSCHED_DEADLINE + tristate "MQ deadline I/O scheduler" + default y + help + MQ version of the deadline IO scheduler. + +config MQ_IOSCHED_KYBER + tristate "Kyber I/O scheduler" + default y + help + The Kyber I/O scheduler is a low-overhead scheduler suitable for + multiqueue and other fast devices. Given target latencies for reads and + synchronous writes, it will self-tune queue depths to achieve that + goal. + +config IOSCHED_BFQ + tristate "BFQ I/O scheduler" + select BLK_ICQ + help + BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of + of the device among all processes according to their weights, + regardless of the device parameters and with any workload. It + also guarantees a low latency to interactive and soft + real-time applications. Details in + Documentation/block/bfq-iosched.rst + +config BFQ_GROUP_IOSCHED + bool "BFQ hierarchical scheduling support" + depends on IOSCHED_BFQ && BLK_CGROUP + default y + select BLK_CGROUP_RWSTAT + help + + Enable hierarchical scheduling in BFQ, using the blkio + (cgroups-v1) or io (cgroups-v2) controller. + +config BFQ_CGROUP_DEBUG + bool "BFQ IO controller debugging" + depends on BFQ_GROUP_IOSCHED + help + Enable some debugging help. Currently it exports additional stat + files in a cgroup which can be useful for debugging. + +endmenu -- cgit v1.3.1