Subject: + mm-nobootmem-free_all_bootmem-again.patch added to -mm tree
To: phacht@xxxxxxxxxxxxxxxxxx,daeseok.youn@xxxxxxxxx,dhowells@xxxxxxxxxx,grygorii.strashko@xxxxxx,liuj97@xxxxxxxxx,qiuxishi@xxxxxxxxxx,santosh.shilimkar@xxxxxx,schwidefsky@xxxxxxxxxx,tangchen@xxxxxxxxxxxxxx,yinghai@xxxxxxxxxx,zhangyanfei@xxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 13 Jan 2014 16:34:24 -0800
The patch titled
Subject: mm/nobootmem: free_all_bootmem again
has been added to the -mm tree. Its filename is
mm-nobootmem-free_all_bootmem-again.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-nobootmem-free_all_bootmem-again.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-nobootmem-free_all_bootmem-again.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Philipp Hachtmann <phacht@xxxxxxxxxxxxxxxxxx>
Subject: mm/nobootmem: free_all_bootmem again
get_allocated_memblock_reserved_regions_info() should work if it is
compiled in. Extended the ifdef around
get_allocated_memblock_memory_regions_info() to include
get_allocated_memblock_reserved_regions_info() as well. Similar changes
in nobootmem.c/free_low_memory_core_early() where the two functions are
called.
Signed-off-by: Philipp Hachtmann <phacht@xxxxxxxxxxxxxxxxxx>
Cc: qiuxishi <qiuxishi@xxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Cc: Daeseok Youn <daeseok.youn@xxxxxxxxx>
Cc: Jiang Liu <liuj97@xxxxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Cc: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Grygorii Strashko <grygorii.strashko@xxxxxx>
Cc: Tang Chen <tangchen@xxxxxxxxxxxxxx>
Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memblock.c | 17 ++---------------
mm/nobootmem.c | 4 ++--
2 files changed, 4 insertions(+), 17 deletions(-)
diff -puN mm/memblock.c~mm-nobootmem-free_all_bootmem-again mm/memblock.c
--- a/mm/memblock.c~mm-nobootmem-free_all_bootmem-again
+++ a/mm/memblock.c
@@ -266,33 +266,20 @@ static void __init_memblock memblock_rem
}
}
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+
phys_addr_t __init_memblock get_allocated_memblock_reserved_regions_info(
phys_addr_t *addr)
{
if (memblock.reserved.regions == memblock_reserved_init_regions)
return 0;
- /*
- * Don't allow nobootmem allocator to free reserved memory regions
- * array if
- * - CONFIG_DEBUG_FS is enabled;
- * - CONFIG_ARCH_DISCARD_MEMBLOCK is not enabled;
- * - reserved memory regions array have been resized during boot.
- * Otherwise debug_fs entry "sys/kernel/debug/memblock/reserved"
- * will show garbage instead of state of memory reservations.
- */
- if (IS_ENABLED(CONFIG_DEBUG_FS) &&
- !IS_ENABLED(CONFIG_ARCH_DISCARD_MEMBLOCK))
- return 0;
-
*addr = __pa(memblock.reserved.regions);
return PAGE_ALIGN(sizeof(struct memblock_region) *
memblock.reserved.max);
}
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
phys_addr_t __init_memblock get_allocated_memblock_memory_regions_info(
phys_addr_t *addr)
{
diff -puN mm/nobootmem.c~mm-nobootmem-free_all_bootmem-again mm/nobootmem.c
--- a/mm/nobootmem.c~mm-nobootmem-free_all_bootmem-again
+++ a/mm/nobootmem.c
@@ -122,13 +122,13 @@ static unsigned long __init free_low_mem
for_each_free_mem_range(i, NUMA_NO_NODE, &start, &end, NULL)
count += __free_memory_core(start, end);
+#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
+
/* Free memblock.reserved array if it was allocated */
size = get_allocated_memblock_reserved_regions_info(&start);
if (size)
count += __free_memory_core(start, start + size);
-#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
-
/* Free memblock.memory array if it was allocated */
size = get_allocated_memblock_memory_regions_info(&start);
if (size)
_
Patches currently in -mm which might be from phacht@xxxxxxxxxxxxxxxxxx are
mm-nobootmemc-add-return-value-check-in-__alloc_memory_core_early.patch
mm-free-memblockmemory-in-free_all_bootmem.patch
mm-free-memblockmemory-in-free_all_bootmem-fix.patch
mm-nobootmem-free_all_bootmem-again.patch
mm-memblock-add-support-for-excluded-memory-areas.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
