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authorDavid S. Miller <davem@davemloft.net>2006-10-14 10:35:26 +0200
committerAdrian Bunk <bunk@stusta.de>2006-10-14 10:35:26 +0200
commit1b85ee3ead96f0ad706cd794e2fa60a42b278713 (patch)
parent88ca8e7402aa6899de20ddc8e708831225583f8d (diff)
[SPARC64]: Kill bogus check from bootmem_init().
There is an ancient and totally incorrect sanity check being done on the ramdisk location. The check assumes that the kernel is always loaded to physical address zero, which is wrong. It was trying to validate the ramdisk value by saying that if it fell within the kernel image address range it must be wrong. Anyways, kill this because it actually creates problems. The 'ramdisk_image' should always be adjusted down by KERNBASE. SILO can easily put the ramdisk in a location which causes this test to trigger, breaking things. [ Based almost entirely upon a patch from Ben Collins. ] Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index 1e44ee26cee8..7d8d7621e1ce 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -1251,8 +1251,7 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
if (sparc_ramdisk_image || sparc_ramdisk_image64) {
unsigned long ramdisk_image = sparc_ramdisk_image ?
sparc_ramdisk_image : sparc_ramdisk_image64;
- if (ramdisk_image >= (unsigned long)_end - 2 * PAGE_SIZE)
- ramdisk_image -= KERNBASE;
+ ramdisk_image -= KERNBASE;
initrd_start = ramdisk_image + phys_base;
initrd_end = initrd_start + sparc_ramdisk_size;
if (initrd_end > end_of_phys_memory) {