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arch/arc/kernel/troubleshoot: use vma_lookup() instead of find_vma()

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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.

Link: https://lkml.kernel.org/r/20210521174745.2219620-4-Liam.Howlett@Oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Liam Howlett 2021-06-28 19:38:56 -07:00 committed by Linus Torvalds
parent 064b266360
commit b55541414b
1 changed files with 4 additions and 4 deletions
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8
arch/arc/kernel/troubleshoot.c
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@ -83,12 +83,12 @@ static void show_faulting_vma(unsigned long address)
* non-inclusive vma
*/
mmap_read_lock(active_mm);
vma = find_vma(active_mm, address);
vma = vma_lookup(active_mm, address);
/* check against the find_vma( ) behaviour which returns the next VMA
* if the container VMA is not found
/* Lookup the vma at the address and report if the container VMA is not
* found
*/
if (vma && (vma->vm_start <= address)) {
if (vma) {
char buf[ARC_PATH_MAX];
char *nm = "?";