p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary 

adjust_lowmem_bounds() checks every memblocks in order to find the boundary
between lowmem and highmem. However some memblocks could be marked as NOMAP
so they are not used by kernel, which should be skipped while calculating
the boundary.

Signed-off-by: Chester Lin <clin@suse.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Chester Lin 2019-08-30 14:30:07 +01:00 committed by Russell King
parent 00d2ec1e6b
commit 1d31999cf0
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm/mm/mmu.c
View File

@ -1197,6 +1197,9 @@ void __init adjust_lowmem_bounds(void)
phys_addr_t block_start = reg->base;
phys_addr_t block_end = reg->base + reg->size;
if (memblock_is_nomap(reg))
continue;
if (reg->base < vmalloc_limit) {
if (block_end > lowmem_limit)
/*