From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Bob Picco <bob.picco@oracle.com>,
Steven Sistare <steven.sistare@oracle.com>,
"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.9 016/119] sparc64: reset mm cpumask after wrap
Date: Mon, 12 Jun 2017 17:24:38 +0200 [thread overview]
Message-ID: <20170612152557.447986018@linuxfoundation.org> (raw)
In-Reply-To: <20170612152556.601664278@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Pavel Tatashin <pasha.tatashin@oracle.com>
[ Upstream commit 588974857359861891f478a070b1dc7ae04a3880 ]
After a wrap (getting a new context version) a process must get a new
context id, which means that we would need to flush the context id from
the TLB before running for the first time with this ID on every CPU. But,
we use mm_cpumask to determine if this process has been running on this CPU
before, and this mask is not reset after a wrap. So, there are two possible
fixes for this issue:
1. Clear mm cpumask whenever mm gets a new context id
2. Unconditionally flush context every time process is running on a CPU
This patch implements the first solution
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Steven Sistare <steven.sistare@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/sparc/mm/init_64.c | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -710,6 +710,8 @@ void get_new_mmu_context(struct mm_struc
goto out;
}
}
+ if (mm->context.sparc64_ctx_val)
+ cpumask_clear(mm_cpumask(mm));
mmu_context_bmap[new_ctx>>6] |= (1UL << (new_ctx & 63));
new_ctx |= (tlb_context_cache & CTX_VERSION_MASK);
out:
next prev parent reply other threads:[~2017-06-12 15:33 UTC|newest]
Thread overview: 116+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-12 15:24 [PATCH 4.9 000/119] 4.9.32-stable review Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 001/119] bnx2x: Fix Multi-Cos Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 002/119] vxlan: eliminate cached dst leak Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 003/119] ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 004/119] cxgb4: avoid enabling napi twice to the same queue Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 005/119] tcp: disallow cwnd undo when switching congestion control Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 006/119] vxlan: fix use-after-free on deletion Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 007/119] ipv6: Fix leak in ipv6_gso_segment() Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 008/119] net: ping: do not abuse udp_poll() Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 009/119] net/ipv6: Fix CALIPSO causing GPF with datagram support Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 010/119] net: ethoc: enable NAPI before poll may be scheduled Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 011/119] net: stmmac: fix completely hung TX when using TSO Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 012/119] net: bridge: start hello timer only if device is up Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 013/119] sparc64: Add __multi3 for gcc 7.x and later Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 014/119] sparc64: mm: fix copy_tsb to correctly copy huge page TSBs Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 015/119] sparc: Machine description indices can vary Greg Kroah-Hartman
2017-06-12 15:24 ` Greg Kroah-Hartman [this message]
2017-06-12 15:24 ` [PATCH 4.9 017/119] sparc64: combine activate_mm and switch_mm Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 018/119] sparc64: redefine first version Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 019/119] sparc64: add per-cpu mm of secondary contexts Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 020/119] sparc64: new context wrap Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 021/119] sparc64: delete old wrap code Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 022/119] arch/sparc: support NR_CPUS = 4096 Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 023/119] serial: ifx6x60: fix use-after-free on module unload Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 024/119] ptrace: Properly initialize ptracer_cred on fork Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 025/119] crypto: asymmetric_keys - handle EBUSY due to backlog correctly Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 026/119] KEYS: fix dereferencing NULL payload with nonzero length Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 027/119] KEYS: fix freeing uninitialized memory in key_update() Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 028/119] KEYS: encrypted: avoid encrypting/decrypting stack buffers Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 029/119] crypto: drbg - wait for crypto op not signal safe Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 030/119] crypto: gcm " Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 032/119] nfsd4: fix null dereference on replay Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 033/119] nfsd: Fix up the "supattr_exclcreat" attributes Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 034/119] efi: Dont issue error message when booted under Xen Greg Kroah-Hartman
2017-06-12 15:24 ` [PATCH 4.9 037/119] arm64: KVM: Preserve RES1 bits in SCTLR_EL2 Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 038/119] arm64: KVM: Allow unaligned accesses at EL2 Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 039/119] arm: KVM: Allow unaligned accesses at HYP Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 041/119] KVM: arm/arm64: vgic-v3: Do not use Active+Pending state for a HW interrupt Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 042/119] KVM: arm/arm64: vgic-v2: " Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 043/119] dmaengine: usb-dmac: Fix DMAOR AE bit definition Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 044/119] dmaengine: ep93xx: Always start from BASE0 Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 045/119] dmaengine: ep93xx: Dont drain the transfers in terminate_all() Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 046/119] dmaengine: mv_xor_v2: handle mv_xor_v2_prep_sw_desc() error properly Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 047/119] dmaengine: mv_xor_v2: properly handle wrapping in the array of HW descriptors Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 048/119] dmaengine: mv_xor_v2: do not use descriptors not acked by async_tx Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 049/119] dmaengine: mv_xor_v2: enable XOR engine after its configuration Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 050/119] dmaengine: mv_xor_v2: fix tx_submit() implementation Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 051/119] dmaengine: mv_xor_v2: remove interrupt coalescing Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 052/119] dmaengine: mv_xor_v2: set DMA mask to 40 bits Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 053/119] cfq-iosched: fix the delay of cfq_groups vdisktime under iops mode Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 054/119] xen/privcmd: Support correctly 64KB page granularity when mapping memory Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 055/119] ext4: fix SEEK_HOLE Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 056/119] ext4: keep existing extra fields when inode expands Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 057/119] ext4: fix data corruption with EXT4_GET_BLOCKS_ZERO Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 058/119] ext4: fix fdatasync(2) after extent manipulation operations Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 060/119] usb: gadget: f_mass_storage: Serialize wake and sleep execution Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 061/119] usb: chipidea: udc: fix NULL pointer dereference if udc_start failed Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 062/119] usb: chipidea: debug: check before accessing ci_role Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 063/119] staging/lustre/lov: remove set_fs() call from lov_getstripe() Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 064/119] iio: adc: bcm_iproc_adc: swap primary and secondary isr handlers Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 065/119] iio: light: ltr501 Fix interchanged als/ps register field Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 066/119] iio: proximity: as3935: fix AS3935_INT mask Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 067/119] iio: proximity: as3935: fix iio_trigger_poll issue Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 068/119] mei: make sysfs modalias format similar as uevent modalias Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 069/119] cpufreq: cpufreq_register_driver() should return -ENODEV if init fails Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 070/119] target: Re-add check to reject control WRITEs with overflow data Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 071/119] drm/msm: Expose our reservation object when exporting a dmabuf Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 072/119] ahci: Acer SA5-271 SSD Not Detected Fix Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 073/119] cgroup: Prevent kill_css() from being called more than once Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 074/119] Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 075/119] cpuset: consider dying css as offline Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 076/119] fs: add i_blocksize() Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 077/119] ufs: restore proper tail allocation Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 078/119] fix ufs_isblockset() Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 079/119] ufs: restore maintaining ->i_blocks Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 080/119] ufs: set correct ->s_maxsize Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 081/119] ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments() Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 082/119] ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 083/119] cxl: Fix error path on bad ioctl Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 084/119] cxl: Avoid double free_irq() for psl,slice interrupts Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 085/119] btrfs: use correct types for page indices in btrfs_page_exists_in_range Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 086/119] btrfs: fix memory leak in update_space_info failure path Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 087/119] KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 088/119] scsi: qla2xxx: dont disable a not previously enabled PCI device Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 089/119] scsi: qla2xxx: Modify T262 FW dump template to specify same start/end to debug customer issues Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 090/119] scsi: qla2xxx: Set bit 15 for DIAG_ECHO_TEST MBC Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 091/119] scsi: qla2xxx: Fix mailbox pointer error in fwdump capture Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 092/119] powerpc/sysdev/simple_gpio: Fix oops in gpio save_regs function Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 093/119] powerpc/numa: Fix percpu allocations to be NUMA aware Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 094/119] powerpc/hotplug-mem: Fix missing endian conversion of aa_index Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 095/119] powerpc/kernel: Fix FP and vector register restoration Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 096/119] powerpc/kernel: Initialize load_tm on task creation Greg Kroah-Hartman
2017-06-12 15:25 ` [PATCH 4.9 097/119] perf/core: Drop kernel samples even though :u is specified Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 098/119] drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve() Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 099/119] drm/vmwgfx: limit the number of mip levels in vmw_gb_surface_define_ioctl() Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 100/119] drm/vmwgfx: Make sure backup_handle is always valid Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 101/119] drm/nouveau/tmr: fully separate alarm execution/pending lists Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 102/119] ALSA: timer: Fix race between read and ioctl Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 103/119] ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 104/119] ASoC: Fix use-after-free at card unregistration Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 105/119] cpu/hotplug: Drop the device lock on error Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 106/119] drivers: char: mem: Fix wraparound check to allow mappings up to the end Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 107/119] serial: sh-sci: Fix panic when serial console and DMA are enabled Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 108/119] arm64: traps: fix userspace cache maintenance emulation on a tagged pointer Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 109/119] arm64: hw_breakpoint: fix watchpoint matching for tagged pointers Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 110/119] arm64: entry: improve data abort handling of " Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 111/119] ARM: 8636/1: Cleanup sanity_check_meminfo Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 112/119] ARM: 8637/1: Adjust memory boundaries after reservations Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 113/119] tracing: Use strlcpy() instead of strcpy() in __trace_find_cmdline() Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 114/119] usercopy: Adjust tests to deal with SMAP/PAN Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 117/119] cpufreq: schedutil: move cached_raw_freq to struct sugov_policy Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 118/119] cpufreq: schedutil: Fix per-CPU structure initialization in sugov_start() Greg Kroah-Hartman
2017-06-12 15:26 ` [PATCH 4.9 119/119] netfilter: nft_set_rbtree: handle element re-addition after deletion Greg Kroah-Hartman
2017-06-12 21:54 ` [PATCH 4.9 000/119] 4.9.32-stable review Guenter Roeck
2017-06-13 7:24 ` Greg Kroah-Hartman
2017-06-13 0:44 ` Shuah Khan
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