AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

[X86] Rename MTRR mutex to something more sensible.

Browse Source 
I spotted 'main_lock' whilst grovelling through a vmlinux with objdump.
Even if it is static, it's a horrible name.

Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Dave Jones 2005-12-20 14:46:07 -08:00
parent f8a363b83f
commit c32017a43d
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/i386/kernel/cpu/mtrr/main.c
View File

@ -49,7 +49,7 @@
u32 num_var_ranges = 0;
unsigned int *usage_table;
static DECLARE_MUTEX(main_lock);
static DECLARE_MUTEX(mtrr_sem);
u32 size_or_mask, size_and_mask;
@ -335,7 +335,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
/* No CPU hotplug when we change MTRR entries */
lock_cpu_hotplug();
/* Search for existing MTRR */
down(&main_lock);
down(&mtrr_sem);
for (i = 0; i < num_var_ranges; ++i) {
mtrr_if->get(i, &lbase, &lsize, &ltype);
if (base >= lbase + lsize)
@ -373,7 +373,7 @@ int mtrr_add_page(unsigned long base, unsigned long size,
printk(KERN_INFO "mtrr: no more MTRRs available\n");
error = i;
out:
up(&main_lock);
up(&mtrr_sem);
unlock_cpu_hotplug();
return error;
}
@ -466,7 +466,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
max = num_var_ranges;
/* No CPU hotplug when we change MTRR entries */
lock_cpu_hotplug();
down(&main_lock);
down(&mtrr_sem);
if (reg < 0) {
/* Search for existing MTRR */
for (i = 0; i < max; ++i) {
@ -505,7 +505,7 @@ int mtrr_del_page(int reg, unsigned long base, unsigned long size)
set_mtrr(reg, 0, 0, 0);
error = reg;
out:
up(&main_lock);
up(&mtrr_sem);
unlock_cpu_hotplug();
return error;
}
@ -688,7 +688,7 @@ void mtrr_ap_init(void)
if (!mtrr_if || !use_intel())
return;
/*
* Ideally we should hold main_lock here to avoid mtrr entries changed,
* Ideally we should hold mtrr_sem here to avoid mtrr entries changed,
* but this routine will be called in cpu boot time, holding the lock
* breaks it. This routine is called in two cases: 1.very earily time
* of software resume, when there absolutely isn't mtrr entry changes;