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x86/mtrr: Replace deprecated CPU-hotplug functions.

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The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-8-bigeasy@linutronix.de
This commit is contained in:
Sebastian Andrzej Siewior 2021-08-03 16:15:50 +02:00 committed by Thomas Gleixner
parent 77ad320cfb
commit 1a351eefd4
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kernel/cpu/mtrr/mtrr.c
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@ -336,7 +336,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
replace = -1; replace = -1;
/* No CPU hotplug when we change MTRR entries */ /* No CPU hotplug when we change MTRR entries */
get_online_cpus(); cpus_read_lock();
/* Search for existing MTRR */ /* Search for existing MTRR */
mutex_lock(&mtrr_mutex); mutex_lock(&mtrr_mutex);
@ -398,7 +398,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
error = i; error = i;
out: out:
mutex_unlock(&mtrr_mutex); mutex_unlock(&mtrr_mutex);
put_online_cpus(); cpus_read_unlock();
return error; return error;
} }
@ -485,7 +485,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
max = num_var_ranges; max = num_var_ranges;
/* No CPU hotplug when we change MTRR entries */ /* No CPU hotplug when we change MTRR entries */
get_online_cpus(); cpus_read_lock();
mutex_lock(&mtrr_mutex); mutex_lock(&mtrr_mutex);
if (reg < 0) { if (reg < 0) {
/* Search for existing MTRR */ /* Search for existing MTRR */
@ -520,7 +520,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
error = reg; error = reg;
out: out:
mutex_unlock(&mtrr_mutex); mutex_unlock(&mtrr_mutex);
put_online_cpus(); cpus_read_unlock();
return error; return error;
} }