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authorThomas Gleixner <tglx@linutronix.de>2020-03-31 10:53:18 +0200
committerBorislav Petkov <bp@suse.de>2020-04-14 15:49:51 +0200
commitf26d2580a7ddc84aa9e51e47fdbb5ad63dbee5a7 (patch)
tree065febd8e563bc04e78e5a00e9b2fdf24ce2ffdb /arch/x86/include/asm/amd_nb.h
parent6458de97fc15530b54477c4e2b70af653e8ac3d9 (diff)
x86/mce/amd: Cleanup threshold device remove path
Pass in the bank pointer directly to the cleaning up functions, obviating the need for per-CPU accesses. Make the clean up path interrupt-safe by cleaning the bank pointer first so that the rest of the teardown happens safe from the thresholding interrupt. No functional changes. [ bp: Write commit message and reverse bank->shared test to save an indentation level in threshold_remove_bank(). ] Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20200403161943.1458-7-bp@alien8.de
Diffstat (limited to 'arch/x86/include/asm/amd_nb.h')
-rw-r--r--arch/x86/include/asm/amd_nb.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index c7df20e78b09..455066a06f60 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -57,6 +57,7 @@ struct threshold_bank {
/* initialized to the number of CPUs on the node sharing this bank */
refcount_t cpus;
+ unsigned int shared;
};
struct amd_northbridge {