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From: Liam Howlett <liam.howlett@oracle.com>
To: "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Song Liu <songliubraving@fb.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	"Paul E . McKenney" <paulmck@kernel.org>,
	Matthew Wilcox <willy@infradead.org>,
	Laurent Dufour <ldufour@linux.ibm.com>,
	David Rientjes <rientjes@google.com>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@suse.cz>, Rik van Riel <riel@surriel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Michel Lespinasse <michel@lespinasse.org>,
	Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 08/22] arch/m68k/kernel/sys_m68k: Use vma_lookup() in sys_cacheflush()
Date: Mon, 10 May 2021 16:58:52 +0000	[thread overview]
Message-ID: <20210510165839.2692974-9-Liam.Howlett@Oracle.com> (raw)
In-Reply-To: <20210510165839.2692974-1-Liam.Howlett@Oracle.com>

Use vma_lookup() to find the VMA at a specific address.  As vma_lookup()
will return NULL if the address is not within any VMA, the start address
no longer needs to be validated.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 arch/m68k/kernel/sys_m68k.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index f55bdcb8e4f1..bd0274c7592e 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -402,8 +402,8 @@ sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
 		 * to this process.
 		 */
 		mmap_read_lock(current->mm);
-		vma = find_vma(current->mm, addr);
-		if (!vma || addr < vma->vm_start || addr + len > vma->vm_end)
+		vma = vma_lookup(current->mm, addr);
+		if (!vma || addr + len > vma->vm_end)
 			goto out_unlock;
 	}
 
-- 
2.30.2

  parent reply	other threads:[~2021-05-10 17:01 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10 16:58 [PATCH 00/21] mm: Add vma_lookup() Liam Howlett
2021-05-10 16:58 ` [PATCH 03/22] arch/arc/kernel/troubleshoot: use vma_lookup() instead of find_vma() Liam Howlett
2021-05-10 16:58 ` [PATCH 01/22] mm: Add vma_lookup() Liam Howlett
2021-05-14  9:57   ` David Hildenbrand
2021-05-21  3:32   ` Davidlohr Bueso
2021-05-21 14:24     ` Liam Howlett
2021-05-10 16:58 ` [PATCH 02/22] drm/i915/selftests: Use vma_lookup() in __igt_mmap() Liam Howlett
2021-05-10 16:58 ` [PATCH 04/22] arch/arm64/kvm: Use vma_lookup() instead of find_vma_intersection() Liam Howlett
2021-05-10 16:58 ` [PATCH 05/22] arch/powerpc/kvm/book3s_hv_uvmem: " Liam Howlett
2021-05-10 16:58 ` [PATCH 06/22] arch/powerpc/kvm/book3s: Use vma_lookup() in kvmppc_hv_setup_htab_rma() Liam Howlett
2021-05-10 16:58 ` Liam Howlett [this message]
2021-05-11  7:15   ` [PATCH 08/22] arch/m68k/kernel/sys_m68k: Use vma_lookup() in sys_cacheflush() Geert Uytterhoeven
2021-05-11  7:15     ` Geert Uytterhoeven
2021-05-10 16:58 ` [PATCH 07/22] arch/mips/kernel/traps: Use vma_lookup() instead of find_vma() Liam Howlett
2021-05-10 16:58 ` [PATCH 09/22] x86/sgx: Use vma_lookup() in sgx_encl_find() Liam Howlett
2021-05-10 16:58 ` [PATCH 11/22] vfio: Use vma_lookup() instead of find_vma_intersection() Liam Howlett
2021-05-10 16:58 ` [PATCH 10/22] virt/kvm: " Liam Howlett
2021-05-10 16:58 ` [PATCH 12/22] net/ipv5/tcp: Use vma_lookup() in tcp_zerocopy_receive() Liam Howlett
2021-05-10 16:58 ` [PATCH 13/22] drm/amdgpu: Use vma_lookup() in amdgpu_ttm_tt_get_user_pages() Liam Howlett
2021-05-10 16:58 ` [PATCH 14/22] media: videobuf2: Use vma_lookup() in get_vaddr_frames() Liam Howlett
2021-05-10 16:58 ` [PATCH 16/22] kernel/events/uprobes: Use vma_lookup() in find_active_uprobe() Liam Howlett
2021-05-10 16:58 ` [PATCH 15/22] misc/sgi-gru/grufault: Use vma_lookup() in gru_find_vma() Liam Howlett
2021-05-10 16:58 ` [PATCH 18/22] mm/ksm: Use vma_lookup() in find_mergeable_vma() Liam Howlett
2021-05-10 16:58 ` [PATCH 17/22] lib/test_hmm: Use vma_lookup() in dmirror_migrate() Liam Howlett
2021-05-10 16:58 ` [PATCH 20/22] mm/mremap: Use vma_lookup() in vma_to_resize() Liam Howlett
2021-05-21  3:47   ` Davidlohr Bueso
2021-05-21 14:27     ` Liam Howlett
2021-05-10 16:58 ` [PATCH 19/22] mm/migrate: Use vma_lookup() in do_pages_stat_array() Liam Howlett
2021-05-10 16:58 ` [PATCH 22/22] mm/mempolicy: Use vma_lookup() in __access_remote_vm() Liam Howlett
2021-05-10 16:58 ` [PATCH 21/22] mm/memory.c: " Liam Howlett
2021-05-17 17:28 ` [PATCH 00/21] mm: Add vma_lookup() Laurent Dufour
2021-05-21  4:20 ` Davidlohr Bueso

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