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| author | Doug Berger <opendmb@gmail.com> | 2019-01-22 21:05:10 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-02-01 21:44:12 +0000 |
| commit | 071d184a19f673bbb69a593c2ff4bd7acc0d1fe6 (patch) | |
| tree | b4fa6e8677a195c348b69de6dc1556f607e5a258 /arch/arm | |
| parent | 58ca33824ff850bee93c850830a7b180486f3371 (diff) | |
| download | linux-0-day-071d184a19f673bbb69a593c2ff4bd7acc0d1fe6.tar.gz linux-0-day-071d184a19f673bbb69a593c2ff4bd7acc0d1fe6.tar.xz | |
ARM: 8826/1: mm: initialize pfn limits with find_limits()
The max_low_pfn value must be set before sparse_init() is called to
keep the early memblock allocations and frees balanced for kmemleak
initialization when sparsemem is enabled.
This commit accomplishes that by replacing the local variables min,
max_low, and max_high with the global limit variables min_low_pfn,
max_low_pfn, and max_pfn respectively in bootmem_init(). The global
variables are initialized directly by find_limits() and used in the
remainder of the function.
Fixes: 9099daed9c69 ("mm: kmemleak: avoid using __va() on addresses that don't have a lowmem mapping")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mm/init.c | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 57962080e47a8..a6b0805b79772 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -278,15 +278,12 @@ void __init arm_memblock_init(const struct machine_desc *mdesc) void __init bootmem_init(void) { - unsigned long min, max_low, max_high; - memblock_allow_resize(); - max_low = max_high = 0; - find_limits(&min, &max_low, &max_high); + find_limits(&min_low_pfn, &max_low_pfn, &max_pfn); - early_memtest((phys_addr_t)min << PAGE_SHIFT, - (phys_addr_t)max_low << PAGE_SHIFT); + early_memtest((phys_addr_t)min_low_pfn << PAGE_SHIFT, + (phys_addr_t)max_low_pfn << PAGE_SHIFT); /* * Sparsemem tries to allocate bootmem in memory_present(), @@ -304,16 +301,7 @@ void __init bootmem_init(void) * the sparse mem_map arrays initialized by sparse_init() * for memmap_init_zone(), otherwise all PFNs are invalid. */ - zone_sizes_init(min, max_low, max_high); - - /* - * This doesn't seem to be used by the Linux memory manager any - * more, but is used by ll_rw_block. If we can get rid of it, we - * also get rid of some of the stuff above as well. - */ - min_low_pfn = min; - max_low_pfn = max_low; - max_pfn = max_high; + zone_sizes_init(min_low_pfn, max_low_pfn, max_pfn); } /* |