AuxXxilium/linux_dsm_epyc7002
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x86: extend e820 ealy_res support 32bit - fix #2

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remove extra -1 in reseve_early calling
    panic if can not find space for new RAMDISK

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Yinghai Lu 2008-05-25 10:00:09 -07:00 committed by Thomas Gleixner
parent 85cc35fa72
commit 3945e2c9ab
1 changed files with 9 additions and 5 deletions
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14
arch/x86/kernel/setup_32.c
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@ -479,7 +479,7 @@ static void __init reserve_initrd(void)
initrd_start = 0;
if (ramdisk_size >= end_of_lowmem/2) {
free_early(ramdisk_image, ramdisk_image + ramdisk_size - 1);
free_early(ramdisk_image, ramdisk_end);
printk(KERN_ERR "initrd too large to handle, "
"disabling initrd\n");
return;
@ -501,9 +501,13 @@ static void __init reserve_initrd(void)
end_of_lowmem, ramdisk_size,
PAGE_SIZE);
if (ramdisk_here == -1ULL)
panic("Cannot find place for new RAMDISK of size %lld\n",
ramdisk_size);
/* Note: this includes all the lowmem currently occupied by
the initrd, we rely on that fact to keep the data intact. */
reserve_early(ramdisk_here, ramdisk_here + ramdisk_size - 1,
reserve_early(ramdisk_here, ramdisk_here + ramdisk_size,
"NEW RAMDISK");
initrd_start = ramdisk_here + PAGE_OFFSET;
initrd_end = initrd_start + ramdisk_size;
@ -579,15 +583,15 @@ void __init setup_bootmem_allocator(void)
PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
reserve_early(bootmap, bootmap + bootmap_size - 1, "BOOTMAP");
reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
#ifdef CONFIG_BLK_DEV_INITRD
reserve_initrd();
#endif
bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, max_low_pfn);
printk(KERN_INFO " low ram: %08lx - %08lx\n",
min_low_pfn<<PAGE_SHIFT, max_low_pfn<<PAGE_SHIFT);
printk(KERN_INFO " bootmap [%08lx - %08lx]\n",
bootmap, bootmap + bootmap_size - 1);
printk(KERN_INFO " bootmap %08lx - %08lx\n",
bootmap, bootmap + bootmap_size);
register_bootmem_low_pages(max_low_pfn);
early_res_to_bootmem(0, max_low_pfn<<PAGE_SHIFT);