linux-kernel - [RFC 10/23] mm/printk: Use memblock apis for early memory allocations

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Date:	Sat, 12 Oct 2013 17:58:53 -0400
From:	Santosh Shilimkar <santosh.shilimkar@...com>
To:	<tj@...nel.org>, <yinghai@...nel.org>
CC:	<linux-arm-kernel@...ts.infradead.org>, <linux-mm@...ck.org>,
	<linux-kernel@...r.kernel.org>, <grygorii.strashko@...com>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [RFC 10/23] mm/printk: Use memblock apis for early memory allocations

Switch to memblock interfaces for early memory allocator

Cc: Yinghai Lu <yinghai@...nel.org>
Cc: Tejun Heo <tj@...nel.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>

Signed-off-by: Grygorii Strashko <grygorii.strashko@...com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@...com>
---
 kernel/printk/printk.c |   10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index b4e8500..8624466 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -757,14 +757,10 @@ void __init setup_log_buf(int early)
 		return;
 
 	if (early) {
-		unsigned long mem;
-
-		mem = memblock_alloc(new_log_buf_len, PAGE_SIZE);
-		if (!mem)
-			return;
-		new_log_buf = __va(mem);
+		new_log_buf =
+			memblock_early_alloc_pages_nopanic(new_log_buf_len);
 	} else {
-		new_log_buf = alloc_bootmem_nopanic(new_log_buf_len);
+		new_log_buf = memblock_early_alloc_nopanic(new_log_buf_len);
 	}
 
 	if (unlikely(!new_log_buf)) {
-- 
1.7.9.5

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