From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Joerg Roedel <jroedel@suse.de>, Thomas Gleixner <tglx@linutronix.de>, Dave Hansen <dave.hansen@linux.intel.com>, Sasha Levin <sashal@kernel.org> Subject: [PATCH AUTOSEL 4.19 17/42] x86/mm: Check for pfn instead of page in vmalloc_sync_one() Date: Fri, 2 Aug 2019 09:22:37 -0400 Message-ID: <20190802132302.13537-17-sashal@kernel.org> (raw) In-Reply-To: <20190802132302.13537-1-sashal@kernel.org> From: Joerg Roedel <jroedel@suse.de> [ Upstream commit 51b75b5b563a2637f9d8dc5bd02a31b2ff9e5ea0 ] Do not require a struct page for the mapped memory location because it might not exist. This can happen when an ioremapped region is mapped with 2MB pages. Fixes: 5d72b4fba40ef ('x86, mm: support huge I/O mapping capability I/F') Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Link: https://lkml.kernel.org/r/20190719184652.11391-2-joro@8bytes.org Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 9d9765e4d1ef1..4d12176a470ee 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -267,7 +267,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) if (!pmd_present(*pmd)) set_pmd(pmd, *pmd_k); else - BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k)); + BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k)); return pmd_k; } -- 2.20.1
next prev parent reply index Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-08-02 13:22 [PATCH AUTOSEL 4.19 01/42] netfilter: nfnetlink: avoid deadlock due to synchronous request_module Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 02/42] vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 03/42] netfilter: Fix rpfilter dropping vrf packets by mistake Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 04/42] netfilter: conntrack: always store window size un-scaled Sasha Levin 2019-08-08 9:02 ` Thomas Jarosch 2019-08-14 10:19 ` Reindl Harald 2019-08-14 11:17 ` Jakub Jankowski 2019-08-14 17:01 ` Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 05/42] netfilter: nft_hash: fix symhash with modulus one Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 06/42] scripts/sphinx-pre-install: fix script for RHEL/CentOS Sasha Levin 2019-08-03 10:31 ` Alexander Kapshuk 2019-08-03 10:37 ` Mauro Carvalho Chehab 2019-08-03 12:09 ` Alexander Kapshuk 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 07/42] drm/amd/display: Wait for backlight programming completion in set backlight level Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 08/42] drm/amd/display: use encoder's engine id to find matched free audio device Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 09/42] drm/amd/display: Fix dc_create failure handling and 666 color depths Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 10/42] drm/amd/display: Only enable audio if speaker allocation exists Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 11/42] drm/amd/display: Increase size of audios array Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 12/42] iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 13/42] nl80211: fix NL80211_HE_MAX_CAPABILITY_LEN Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 14/42] mac80211: don't warn about CW params when not using them Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 15/42] allocate_flower_entry: should check for null deref Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 16/42] hwmon: (nct6775) Fix register address and added missed tolerance for nct6106 Sasha Levin 2019-08-02 13:22 ` Sasha Levin [this message] 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 18/42] x86/mm: Sync also unmappings in vmalloc_sync_all() Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 19/42] drm/msm: stop abusing dma_map/unmap for cache Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 20/42] drm: silence variable 'conn' set but not used Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 21/42] cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init() Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 22/42] s390/qdio: add sanity checks to the fast-requeue path Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 23/42] ALSA: compress: Fix regression on compressed capture streams Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 24/42] ALSA: compress: Prevent bypasses of set_params Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 25/42] ALSA: compress: Don't allow paritial drain operations on capture streams Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 26/42] ALSA: compress: Be more restrictive about when a drain is allowed Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 27/42] perf tools: Fix proper buffer size for feature processing Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 28/42] perf probe: Avoid calling freeing routine multiple times for same pointer Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 29/42] drbd: dynamically allocate shash descriptor Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 30/42] ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id() Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 31/42] nvme: fix multipath crash when ANA is deactivated Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 32/42] ARM: davinci: fix sleep.S build error on ARMv4 Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 33/42] ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 34/42] scsi: megaraid_sas: fix panic on loading firmware crashdump Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 35/42] scsi: ibmvfc: fix WARN_ON during event pool release Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 36/42] scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 37/42] test_firmware: fix a memory leak bug Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 38/42] sched/fair: Don't free p->numa_faults with concurrent readers Sasha Levin 2019-08-02 13:22 ` [PATCH AUTOSEL 4.19 39/42] sched/fair: Use RCU accessors consistently for ->numa_group Sasha Levin 2019-08-02 13:23 ` [PATCH AUTOSEL 4.19 40/42] tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop Sasha Levin 2019-08-02 13:23 ` [PATCH AUTOSEL 4.19 41/42] perf/core: Fix creating kernel counters for PMUs that override event->cpu Sasha Levin 2019-08-02 13:23 ` [PATCH AUTOSEL 4.19 42/42] s390/dma: provide proper ARCH_ZONE_DMA_BITS value Sasha Levin
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