From: Wei Yang <richardw.yang@linux.intel.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org
Cc: dave.hansen@linux.intel.com, luto@kernel.org,
peterz@infradead.or, tglx@linutronix.de,
Wei Yang <richardw.yang@linux.intel.com>
Subject: [PATCH 2/6] x86, mm: remove check in save_mr
Date: Tue, 12 Feb 2019 10:12:11 +0800 [thread overview]
Message-ID: <20190212021215.13247-3-richardw.yang@linux.intel.com> (raw)
In-Reply-To: <20190212021215.13247-1-richardw.yang@linux.intel.com>
This check has been validated before calling save_mr. It is not
necessary to do this again.
Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
---
arch/x86/mm/init.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 1b980b70911a..6fb84be79c7c 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -259,14 +259,12 @@ static int __meminit save_mr(struct map_range *mr, int nr_range,
unsigned long start_pfn, unsigned long end_pfn,
unsigned long page_size_mask)
{
- if (start_pfn < end_pfn) {
- if (nr_range >= NR_RANGE_MR)
- panic("run out of range for init_memory_mapping\n");
- mr[nr_range].start = start_pfn<<PAGE_SHIFT;
- mr[nr_range].end = end_pfn<<PAGE_SHIFT;
- mr[nr_range].page_size_mask = page_size_mask;
- nr_range++;
- }
+ if (nr_range >= NR_RANGE_MR)
+ panic("run out of range for init_memory_mapping\n");
+ mr[nr_range].start = start_pfn<<PAGE_SHIFT;
+ mr[nr_range].end = end_pfn<<PAGE_SHIFT;
+ mr[nr_range].page_size_mask = page_size_mask;
+ nr_range++;
return nr_range;
}
--
2.19.1
next prev parent reply other threads:[~2019-02-12 2:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-12 2:12 [PATCH 0/6] x86, mm: refine split_mem_range a little Wei Yang
2019-02-12 2:12 ` [PATCH 1/6] x86, mm: remove second argument of split_mem_range() Wei Yang
2019-03-24 14:38 ` Thomas Gleixner
2019-03-25 1:16 ` Wei Yang
2019-02-12 2:12 ` Wei Yang [this message]
2019-02-12 2:12 ` [PATCH 3/6] x86, mm: add comment for split_mem_range to help understanding Wei Yang
2019-02-12 2:12 ` [PATCH 4/6] x86, mm: make split_mem_range() more easy to read Wei Yang
2019-03-24 14:29 ` Thomas Gleixner
2019-03-27 22:05 ` Wei Yang
2019-03-28 0:16 ` Thomas Gleixner
2019-03-28 0:25 ` Wei Yang
2019-03-28 3:35 ` Wei Yang
2019-03-28 7:20 ` Wei Yang
2019-03-28 8:08 ` Thomas Gleixner
2019-03-29 3:38 ` Wei Yang
[not found] ` <20190328065117.GA6202@richard>
2019-03-28 8:02 ` Thomas Gleixner
2019-04-12 3:08 ` Wei Yang
2019-02-12 2:12 ` [PATCH 5/6] x86, mm: skip 1G range if the range doesn't span PUD Wei Yang
2019-02-12 2:12 ` [PATCH 6/6] x86, mm: x86, mm: jump to split only 4K range when range doesn't span PMD Wei Yang
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