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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Greg KH <gregkh@linuxfoundation.org>,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	alan@lxorguk.ukuu.org.uk, David Daney <david.daney@cavium.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-mips@linux-mips.org
Subject: [ 04/40] MIPS: Properly align the .data..init_task section.
Date: Thu, 26 Jul 2012 14:29:22 -0700	[thread overview]
Message-ID: <20120726211411.443368067@linuxfoundation.org> (raw)
In-Reply-To: <20120726211411.164006056@linuxfoundation.org>

From: Greg KH <gregkh@linuxfoundation.org>

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: David Daney <david.daney@cavium.com>

commit 7b1c0d26a8e272787f0f9fcc5f3e8531df3b3409 upstream.

Improper alignment can lead to unbootable systems and/or random
crashes.

[ralf@linux-mips.org: This is a lond standing bug since
6eb10bc9e2deab06630261cd05c4cb1e9a60e980 (kernel.org) rsp.
c422a10917f75fd19fa7fe070aaaa23e384dae6f (lmo) [MIPS: Clean up linker script
using new linker script macros.] so dates back to 2.6.32.]

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3881/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/mips/include/asm/thread_info.h |    4 ++--
 arch/mips/kernel/vmlinux.lds.S      |    3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -60,6 +60,8 @@ struct thread_info {
 register struct thread_info *__current_thread_info __asm__("$28");
 #define current_thread_info()  __current_thread_info
 
+#endif /* !__ASSEMBLY__ */
+
 /* thread information allocation */
 #if defined(CONFIG_PAGE_SIZE_4KB) && defined(CONFIG_32BIT)
 #define THREAD_SIZE_ORDER (1)
@@ -97,8 +99,6 @@ register struct thread_info *__current_t
 
 #define free_thread_info(info) kfree(info)
 
-#endif /* !__ASSEMBLY__ */
-
 #define PREEMPT_ACTIVE		0x10000000
 
 /*
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -1,5 +1,6 @@
 #include <asm/asm-offsets.h>
 #include <asm/page.h>
+#include <asm/thread_info.h>
 #include <asm-generic/vmlinux.lds.h>
 
 #undef mips
@@ -73,7 +74,7 @@ SECTIONS
 	.data : {	/* Data */
 		. = . + DATAOFFSET;		/* for CONFIG_MAPPED_KERNEL */
 
-		INIT_TASK_DATA(PAGE_SIZE)
+		INIT_TASK_DATA(THREAD_SIZE)
 		NOSAVE_DATA
 		CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
 		READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)



  parent reply	other threads:[~2012-07-26 21:30 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-26 21:14 [ 00/40] 3.0.39-stable review Greg KH
2012-07-26 21:29 ` [ 01/40] cifs: always update the inode cache with the results from a FIND_* Greg Kroah-Hartman
2012-07-26 21:29   ` [ 02/40] ntp: Fix STA_INS/DEL clearing bug Greg Kroah-Hartman
2012-07-26 21:29   ` [ 03/40] mm: fix lost kswapd wakeup in kswapd_stop() Greg Kroah-Hartman
2012-07-26 21:29   ` Greg Kroah-Hartman [this message]
2012-07-26 21:29   ` [ 05/40] UBIFS: fix a bug in empty space fix-up Greg Kroah-Hartman
2012-07-26 21:29   ` [ 06/40] dm raid1: fix crash with mirror recovery and discard Greg Kroah-Hartman
2012-07-26 21:29   ` [ 07/40] mm/vmstat.c: cache align vm_stat Greg Kroah-Hartman
2012-07-26 21:29   ` [ 08/40] mm: memory hotplug: Check if pages are correctly reserved on a per-section basis Greg Kroah-Hartman
2012-07-26 21:29   ` [ 09/40] mm: reduce the amount of work done when updating min_free_kbytes Greg Kroah-Hartman
2012-07-26 21:29   ` [ 10/40] mm: vmscan: fix force-scanning small targets without swap Greg Kroah-Hartman
2012-07-26 21:29   ` [ 11/40] vmscan: clear ZONE_CONGESTED for zone with good watermark Greg Kroah-Hartman
2012-07-26 21:29   ` [ 12/40] vmscan: add shrink_slab tracepoints Greg Kroah-Hartman
2012-07-26 21:29   ` [ 13/40] vmscan: shrinker->nr updates race and go wrong Greg Kroah-Hartman
2012-07-29 20:29     ` Ben Hutchings
2012-07-30  9:06       ` Mel Gorman
2012-07-30 15:41         ` Greg Kroah-Hartman
2012-07-26 21:29   ` [ 14/40] vmscan: reduce wind up shrinker->nr when shrinker cant do work Greg Kroah-Hartman
2012-07-26 21:29   ` [ 15/40] vmscan: limit direct reclaim for higher order allocations Greg Kroah-Hartman
2012-07-26 21:29   ` [ 16/40] vmscan: abort reclaim/compaction if compaction can proceed Greg Kroah-Hartman
2012-07-26 21:29   ` [ 17/40] mm: compaction: trivial clean up in acct_isolated() Greg Kroah-Hartman
2012-07-26 21:29   ` [ 18/40] mm: change isolate mode from #define to bitwise type Greg Kroah-Hartman
2012-07-26 21:29   ` [ 19/40] mm: compaction: make isolate_lru_page() filter-aware Greg Kroah-Hartman
2012-07-26 21:29   ` [ 20/40] mm: zone_reclaim: " Greg Kroah-Hartman
2012-07-26 21:29   ` [ 21/40] mm: migration: clean up unmap_and_move() Greg Kroah-Hartman
2012-07-26 21:29   ` [ 22/40] mm: compaction: allow compaction to isolate dirty pages Greg Kroah-Hartman
2012-07-26 21:29   ` [ 23/40] mm: compaction: determine if dirty pages can be migrated without blocking within ->migratepage Greg Kroah-Hartman
2012-07-26 21:29   ` [ 24/40] mm: page allocator: do not call direct reclaim for THP allocations while compaction is deferred Greg Kroah-Hartman
2012-07-26 21:29   ` [ 25/40] mm: compaction: make isolate_lru_page() filter-aware again Greg Kroah-Hartman
2012-07-26 21:29   ` [ 26/40] kswapd: avoid unnecessary rebalance after an unsuccessful balancing Greg Kroah-Hartman
2012-07-26 21:29   ` [ 27/40] kswapd: assign new_order and new_classzone_idx after wakeup in sleeping Greg Kroah-Hartman
2012-07-26 21:29   ` [ 28/40] mm: compaction: introduce sync-light migration for use by compaction Greg Kroah-Hartman
2012-07-26 21:29   ` [ 29/40] mm: vmscan: when reclaiming for compaction, ensure there are sufficient free pages available Greg Kroah-Hartman
2012-07-26 21:29   ` [ 30/40] mm: vmscan: do not OOM if aborting reclaim to start compaction Greg Kroah-Hartman
2012-07-26 21:29   ` [ 31/40] mm: vmscan: check if reclaim should really abort even if compaction_ready() is true for one zone Greg Kroah-Hartman
2012-07-26 21:29   ` [ 32/40] vmscan: promote shared file mapped pages Greg Kroah-Hartman
2012-07-26 21:29   ` [ 33/40] vmscan: activate executable pages after first usage Greg Kroah-Hartman
2012-07-26 21:29   ` [ 34/40] mm/vmscan.c: consider swap space when deciding whether to continue reclaim Greg Kroah-Hartman
2012-07-26 21:29   ` [ 35/40] mm: test PageSwapBacked in lumpy reclaim Greg Kroah-Hartman
2012-07-26 21:29   ` [ 36/40] mm: vmscan: convert global reclaim to per-memcg LRU lists Greg Kroah-Hartman
2012-07-30  0:25     ` Ben Hutchings
2012-07-30 15:29       ` Greg Kroah-Hartman
2012-07-26 21:29   ` [ 37/40] cpusets: avoid looping when storing to mems_allowed if one node remains set Greg Kroah-Hartman
2012-07-26 21:29   ` [ 38/40] cpusets: stall when updating mems_allowed for mempolicy or disjoint nodemask Greg Kroah-Hartman
2012-07-26 21:29   ` [ 39/40] cpuset: mm: reduce large amounts of memory barrier related damage v3 Greg Kroah-Hartman
2012-07-27 15:08     ` Herton Ronaldo Krzesinski
2012-07-27 15:23       ` Mel Gorman
2012-07-27 19:01         ` Greg Kroah-Hartman
2012-07-28  5:02           ` Herton Ronaldo Krzesinski
2012-07-28 10:26             ` Mel Gorman
2012-07-30 15:39               ` Greg Kroah-Hartman
2012-07-30 15:37             ` Greg Kroah-Hartman
2012-07-30 15:38               ` Greg Kroah-Hartman
2012-07-26 21:29   ` [ 40/40] mm/hugetlb: fix warning in alloc_huge_page/dequeue_huge_page_vma Greg Kroah-Hartman

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