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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 23:29:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-14 23:29:55 +0100 |
| commit | c21b04f9890ce35bfbb4f5ee1937017613f66017 (patch) | |
| tree | 0f15558258d2d67f8149d3378b0e6bb83f0d8a35 /lib/Kconfig.debug | |
| parent | firmware: qemu config needs I/O ports (diff) | |
| parent | Linux 4.5-rc4 (diff) | |
| download | linux-c21b04f9890ce35bfbb4f5ee1937017613f66017.tar.xz linux-c21b04f9890ce35bfbb4f5ee1937017613f66017.zip | |
Merge 4.5-rc4 into driver-core-next
We want the fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/Kconfig.debug')
| -rw-r--r-- | lib/Kconfig.debug | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ecb9e75614bf..8bfd1aca7a3d 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -1400,6 +1400,21 @@ config RCU_EQS_DEBUG endmenu # "RCU Debugging" +config DEBUG_WQ_FORCE_RR_CPU + bool "Force round-robin CPU selection for unbound work items" + depends on DEBUG_KERNEL + default n + help + Workqueue used to implicitly guarantee that work items queued + without explicit CPU specified are put on the local CPU. This + guarantee is no longer true and while local CPU is still + preferred work items may be put on foreign CPUs. Kernel + parameter "workqueue.debug_force_rr_cpu" is added to force + round-robin CPU selection to flush out usages which depend on the + now broken guarantee. This config option enables the debug + feature by default. When enabled, memory and cache locality will + be impacted. + config DEBUG_BLOCK_EXT_DEVT bool "Force extended block device numbers and spread them" depends on DEBUG_KERNEL |