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alistair23-linux
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GHES: Panic right after detection 

The moment we log an error of panic severity, there's no need to noodle
through the ghes_nmi list anymore. So panic instead right then and
there.

Signed-off-by: Borislav Petkov <bp@suse.de>
hifive-unleashed-5.1
Borislav Petkov 2015-03-18 09:55:21 +01:00
parent e10be03f60
commit 6169ddf846
1 changed files with 6 additions and 10 deletions
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16
drivers/acpi/apei/ghes.c
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@ -837,9 +837,8 @@ static void __ghes_panic(struct ghes *ghes)
static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
{
struct ghes *ghes, *ghes_global = NULL;
int sev, sev_global = -1;
int ret = NMI_DONE;
struct ghes *ghes;
int sev, ret = NMI_DONE;
raw_spin_lock(&ghes_nmi_lock);
list_for_each_entry_rcu(ghes, &ghes_nmi, list) {
@ -847,20 +846,17 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
ghes_clear_estatus(ghes);
continue;
}
sev = ghes_severity(ghes->estatus->error_severity);
if (sev > sev_global) {
sev_global = sev;
ghes_global = ghes;
}
if (sev >= GHES_SEV_PANIC)
__ghes_panic(ghes);
ret = NMI_HANDLED;
}
if (ret == NMI_DONE)
goto out;
if (sev_global >= GHES_SEV_PANIC)
__ghes_panic(ghes_global);
list_for_each_entry_rcu(ghes, &ghes_nmi, list) {
if (!(ghes->flags & GHES_TO_CLEAR))
continue;