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| author | Tony Luck <tony.luck@intel.com> | 2015-07-02 21:12:53 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2015-07-02 23:30:33 +0200 |
| commit | 43c518d197e7758bc64e0485050de347797faab6 (patch) | |
| tree | ce980fdf3663ecd8cd3d69daff8333089d8aee0b /arch/ia64/mm | |
| parent | Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel... (diff) | |
| download | linux-43c518d197e7758bc64e0485050de347797faab6.tar.xz linux-43c518d197e7758bc64e0485050de347797faab6.zip | |
[IA64] Drop debug test/printk that some special pages are marked reserved
In commit 92923ca3aace "mm: meminit: only set page reserved in the memblock region"
we dropped setting the reserved bits for all pages. This results in some warnings
on ia64:
put_kernel_page: page at 0xe000000005588000 not in reserved memory
put_kernel_page: page at 0xe000000005588000 not in reserved memory
put_kernel_page: page at 0xe000000005580000 not in reserved memory
put_kernel_page: page at 0xe000000005580000 not in reserved memory
put_kernel_page: page at 0xe000000005580000 not in reserved memory
put_kernel_page: page at 0xe000000005580000 not in reserved memory
the two different pages match up with two objects from the loaded kernel
that get mapped by arch/ia64/mm/init.c:setup_gate()
a000000101588000 D __start_gate_section
a000000101580000 D empty_zero_page
In a discussion with Mel Gorman:
http://lkml.kernel.org/r/20150526102219.GB13750%40suse.de
he suggested that while the preferred approach might be to
set the reserved bit for these pages, it would also be OK
to just drop the test:
"as it's a debugging check that is ia-64 specific"
After hunting around a bit and failin to find a good place to mark these
pages as reserved - I decided to just delete the test.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/mm')
| -rw-r--r-- | arch/ia64/mm/init.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 7f3028965064..97e48b0eefc7 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -215,10 +215,6 @@ put_kernel_page (struct page *page, unsigned long address, pgprot_t pgprot) pmd_t *pmd; pte_t *pte; - if (!PageReserved(page)) - printk(KERN_ERR "put_kernel_page: page at 0x%p not in reserved memory\n", - page_address(page)); - pgd = pgd_offset_k(address); /* note: this is NOT pgd_offset()! */ { |