From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Hou Pengyang <houpengyang@huawei.com>
Subject: [PATCH 3.10 23/51] ARM: lpae: fix definition of PTE_HWTABLE_PTRS
Date: Tue, 3 Feb 2015 15:17:05 -0800 [thread overview]
Message-ID: <20150203231725.297928437@linuxfoundation.org> (raw)
In-Reply-To: <20150203231724.582537862@linuxfoundation.org>
3.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Will Deacon <will.deacon@arm.com>
commit e38a517578d6c0f764b0d0f6e26dcdf9f70c69d7 upstream.
For 2-level page tables, PTE_HWTABLE_PTRS describes the offset between
Linux PTEs and hardware PTEs. On LPAE, there is no distinction (since
we have 64-bit descriptors with plenty of space) so PTE_HWTABLE_PTRS
should be 0. Unfortunately, it is wrongly defined as PTRS_PER_PTE,
meaning that current pte table flushing is off by a page. Luckily,
all current LPAE implementations are SMP, so the hardware walker can
snoop L1.
This patch fixes the broken definition.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Hou Pengyang <houpengyang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/include/asm/pgtable-3level.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -33,7 +33,7 @@
#define PTRS_PER_PMD 512
#define PTRS_PER_PGD 4
-#define PTE_HWTABLE_PTRS (PTRS_PER_PTE)
+#define PTE_HWTABLE_PTRS (0)
#define PTE_HWTABLE_OFF (0)
#define PTE_HWTABLE_SIZE (PTRS_PER_PTE * sizeof(u64))
next prev parent reply other threads:[~2015-02-03 23:37 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-03 23:16 [PATCH 3.10 00/51] 3.10.68-stable review Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 01/51] spi: dw-mid: fix FIFO size Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 02/51] ASoC: wm8960: Fix capture sample rate from 11250 to 11025 Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 03/51] can: kvaser_usb: Do not sleep in atomic context Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 04/51] can: kvaser_usb: Send correct context to URB completion Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 05/51] can: kvaser_usb: Retry the first bulk transfer on -ETIMEDOUT Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 06/51] can: kvaser_usb: Fix state handling upon BUS_ERROR events Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 07/51] powerpc/xmon: Fix another endiannes issue in RTAS call from xmon Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 08/51] ALSA: seq-dummy: remove deadlock-causing events on close Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 09/51] Input: i8042 - add noloop quirk for Medion Akoya E7225 (MD98857) Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 10/51] nfs: fix dio deadlock when O_DIRECT flag is flipped Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 11/51] NFSv4.1: Fix an Oops in nfs41_walk_client_list Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 12/51] nl80211: fix per-station group key get/del and memory leak Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 13/51] dm thin: dont allow messages to be sent to a pool target in READ_ONLY or FAIL mode Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 14/51] dm cache: fix missing ERR_PTR returns and handling Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 15/51] spi/pxa2xx: Clear cur_chip pointer before starting next message Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 16/51] regulator: core: fix race condition in regulator_put() Greg Kroah-Hartman
2015-02-03 23:16 ` [PATCH 3.10 17/51] drivers: net: cpsw: discard dual emac default vlan configuration Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 18/51] ARM: 7829/1: Add ".text.unlikely" and ".text.hot" to arm unwind tables Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 19/51] ARM: mm: correct pte_same behaviour for LPAE Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 20/51] ARM: LPAE: use signed arithmetic for mask definitions Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 21/51] ARM: LPAE: use phys_addr_t in alloc_init_pud() Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 22/51] ARM: fix type of PHYS_PFN_OFFSET to unsigned long Greg Kroah-Hartman
2015-02-03 23:17 ` Greg Kroah-Hartman [this message]
2015-02-03 23:17 ` [PATCH 3.10 24/51] ARM: 7866/1: include: asm: use long long instead of u64 within atomic.h Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 25/51] ARM: 7867/1: include: asm: use int instead of unsigned long for oldval in atomic_cmpxchg() Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 26/51] ARM: fix asm/memory.h build error Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 27/51] ARM: 7931/1: Correct virt_addr_valid Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 28/51] ARM: DMA: ensure that old section mappings are flushed from the TLB Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 29/51] ARM: 8108/1: mm: Introduce {pte,pmd}_isset and {pte,pmd}_isclear Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 30/51] ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 31/51] pstore: Fail to unlink if a driver has not defined pstore_erase Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 32/51] pstore: d_alloc_name() doesnt return an ERR_PTR Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 33/51] pstore: clarify clearing of _read_cnt in ramoops_context Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 34/51] pstore: skip zero size persistent ram buffer in traverse Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 35/51] pstore: Fix NULL pointer fault if get NULL prz in ramoops_get_next_prz Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 36/51] pstore/ram: avoid atomic accesses for ioremapped regions Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 37/51] efi-pstore: Make efi-pstore return a unique id Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 38/51] gpio: squelch a compiler warning Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 39/51] workqueue: fix subtle pool management issue which can stall whole worker_pool Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 40/51] IB/isert: Adjust CQ size to HW limits Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 41/51] ib_isert: Add max_send_sge=2 minimum for control PDU responses Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 42/51] vhost-scsi: Take configfs group dependency during VHOST_SCSI_SET_ENDPOINT Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 43/51] tcm_loop: Fix wrong I_T nexus association Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 44/51] vhost-scsi: Add missing virtio-scsi -> TCM attribute conversion Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 45/51] iscsi,iser-target: Initiate termination only once Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 46/51] iser-target: Fix flush + disconnect completion handling Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 47/51] iser-target: Parallelize CM connection establishment Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 48/51] iser-target: Fix connected_handler + teardown flow race Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 49/51] iser-target: Handle ADDR_CHANGE event for listener cm_id Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 50/51] iser-target: Fix implicit termination of connections Greg Kroah-Hartman
2015-02-03 23:17 ` [PATCH 3.10 51/51] target: Drop arbitrary maximum I/O size limit Greg Kroah-Hartman
2015-02-04 14:01 ` [PATCH 3.10 00/51] 3.10.68-stable review Guenter Roeck
2015-02-04 17:30 ` Shuah Khan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150203231725.297928437@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=catalin.marinas@arm.com \
--cc=houpengyang@huawei.com \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).