From: Yinghai Lu <yinghai@kernel.org>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: [PATCH 24/31] memblock: Make memblock_alloc_try_nid() fallback to MEMBLOCK_ALLOC_ANYWHERE
Date: Thu, 22 Jul 2010 11:20:57 -0700 [thread overview]
Message-ID: <1279822864-17154-25-git-send-email-yinghai@kernel.org> (raw)
In-Reply-To: <1279822864-17154-1-git-send-email-yinghai@kernel.org>
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
memblock_alloc_nid() used to fallback to allocating anywhere by using
memblock_alloc() as a fallback.
However, some of my previous patches limit memblock_alloc() to the region
covered by MEMBLOCK_ALLOC_ACCESSIBLE which is not quite what we want
for memblock_alloc_try_nid().
So we fix it by explicitely using MEMBLOCK_ALLOC_ANYWHERE.
Not that so far only sparc uses memblock_alloc_nid() and it hasn't been updated
to clamp the accessible zone yet. Thus the temporary "breakage" should have
no effect.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
mm/memblock.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index c3c499e..424ca11 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -546,7 +546,7 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i
if (res)
return res;
- return memblock_alloc(size, align);
+ return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ANYWHERE);
}
--
1.6.4.2
WARNING: multiple messages have this Message-ID (diff)
From: Yinghai Lu <yinghai@kernel.org>
To: Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
David Miller <davem@davemloft.net>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Linus Torvalds <torvalds@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [PATCH 24/31] memblock: Make memblock_alloc_try_nid() fallback to MEMBLOCK_ALLOC_ANYWHERE
Date: Thu, 22 Jul 2010 11:20:57 -0700 [thread overview]
Message-ID: <1279822864-17154-25-git-send-email-yinghai@kernel.org> (raw)
Message-ID: <20100722182057.R63dVUwuwCiNnq6tJPz6QFd9oXzk1-dmcrsmp2lu4Ws@z> (raw)
In-Reply-To: <1279822864-17154-1-git-send-email-yinghai@kernel.org>
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
memblock_alloc_nid() used to fallback to allocating anywhere by using
memblock_alloc() as a fallback.
However, some of my previous patches limit memblock_alloc() to the region
covered by MEMBLOCK_ALLOC_ACCESSIBLE which is not quite what we want
for memblock_alloc_try_nid().
So we fix it by explicitely using MEMBLOCK_ALLOC_ANYWHERE.
Not that so far only sparc uses memblock_alloc_nid() and it hasn't been updated
to clamp the accessible zone yet. Thus the temporary "breakage" should have
no effect.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
mm/memblock.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/mm/memblock.c b/mm/memblock.c
index c3c499e..424ca11 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -546,7 +546,7 @@ phys_addr_t __init memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, i
if (res)
return res;
- return memblock_alloc(size, align);
+ return memblock_alloc_base(size, align, MEMBLOCK_ALLOC_ANYWHERE);
}
--
1.6.4.2
next prev parent reply other threads:[~2010-07-22 18:24 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-22 18:20 [PATCH -v26 00/31] generic changes for memblock Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 01/31] memblock: Rename memblock_region to memblock_type and memblock_property to memblock_region Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 02/31] memblock: No reason to include asm/memblock.h late Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 03/31] memblock: Introduce for_each_memblock() and new accessors, and use it Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 04/31] memblock: Remove nid_range argument, arch provides memblock_nid_range() instead Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 05/31] memblock: Factor the lowest level alloc function Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 06/31] memblock: Expose MEMBLOCK_ALLOC_ANYWHERE Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 07/31] memblock: Introduce default allocation limit and use it to replace explicit ones Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 08/31] memblock: Remove rmo_size, burry it in arch/powerpc where it belongs Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 09/31] memblock: Change u64 to phys_addr_t Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 10/31] memblock: Remove unused memblock.debug struct member Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 11/31] memblock: Remove memblock_type.size and add memblock.memory_size instead Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 12/31] memblock: Move memblock arrays to static storage in memblock.c and make their size a variable Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 13/31] memblock: Add debug markers at the end of the array Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 14/31] memblock: Make memblock_find_region() out of memblock_alloc_region() Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 15/31] memblock: Define MEMBLOCK_ERROR internally instead of using ~(phys_addr_t)0 Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 16/31] memblock: Move memblock_init() to the bottom of the file Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 17/31] memblock: split memblock_find_base() out of __memblock_alloc_base() Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 18/31] memblock: Move functions around into a more sensible order Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 19/31] memblock: Add array resizing support Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 20/31] memblock: Add arch function to control coalescing of memblock memory regions Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 21/31] memblock: Add "start" argument to memblock_find_base() Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 22/31] memblock: NUMA allocate can now use early_pfn_map Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 23/31] memblock: Separate memblock_alloc_nid() and memblock_alloc_try_nid() Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu [this message]
2010-07-22 18:20 ` [PATCH 24/31] memblock: Make memblock_alloc_try_nid() fallback to MEMBLOCK_ALLOC_ANYWHERE Yinghai Lu
2010-07-22 18:20 ` [PATCH 25/31] memblock: Add debugfs files to dump the arrays content Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:20 ` [PATCH 26/31] memblock: Prepare x86 to use memblock to replace early_res Yinghai Lu
2010-07-22 18:20 ` Yinghai Lu
2010-07-22 18:21 ` [PATCH 27/31] memblock: Print new doubled array location info Yinghai Lu
2010-07-22 18:21 ` Yinghai Lu
2010-07-22 18:21 ` [PATCH 28/31] memblock: Export MEMBLOCK_ERROR again Yinghai Lu
2010-07-22 18:21 ` Yinghai Lu
2010-07-28 5:15 ` Benjamin Herrenschmidt
2010-07-28 5:19 ` Benjamin Herrenschmidt
2010-07-28 5:53 ` H. Peter Anvin
2010-07-28 6:01 ` David Miller
2010-07-28 6:13 ` Yinghai Lu
2010-07-28 9:29 ` Benjamin Herrenschmidt
2010-07-28 9:25 ` Benjamin Herrenschmidt
2010-07-28 6:29 ` Benjamin Herrenschmidt
2010-07-28 5:24 ` Benjamin Herrenschmidt
2010-07-22 18:21 ` [PATCH 29/31] memblock: Prepare to include linux/memblock.h in core file Yinghai Lu
2010-07-22 18:21 ` Yinghai Lu
2010-07-28 5:27 ` Benjamin Herrenschmidt
2010-07-22 18:21 ` [PATCH 30/31] memblock: Add ARCH_DISCARD_MEMBLOCK to put memblock code to .init Yinghai Lu
2010-07-22 18:21 ` Yinghai Lu
2010-07-28 5:45 ` Benjamin Herrenschmidt
2010-07-22 18:21 ` [PATCH 31/31] memblock: Add memblock_find_in_range() Yinghai Lu
2010-07-22 18:21 ` Yinghai Lu
2010-07-28 5:36 ` Benjamin Herrenschmidt
2010-07-28 6:08 ` Yinghai Lu
2010-07-28 6:38 ` H. Peter Anvin
2010-07-28 7:12 ` Yinghai Lu
2010-07-28 16:06 ` H. Peter Anvin
2010-07-28 17:02 ` James Bottomley
2010-07-28 17:53 ` H. Peter Anvin
2010-07-28 18:10 ` James Bottomley
2010-07-28 18:30 ` H. Peter Anvin
2010-07-28 19:27 ` Yinghai Lu
2010-07-28 19:58 ` H. Peter Anvin
2010-07-28 22:58 ` Ralph Campbell
2010-07-28 23:41 ` H. Peter Anvin
2010-07-28 9:27 ` Benjamin Herrenschmidt
2010-07-28 6:22 ` H. Peter Anvin
2010-07-22 21:35 ` [PATCH -v26 00/31] generic changes for memblock Benjamin Herrenschmidt
2010-07-22 22:00 ` Yinghai Lu
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